Prodrug and Antedrug: Two Diametrical Approaches in Designing Safer Drugs

  • Lee, Henry-J. (College of Pharmacy and Pharmaceutical Science, Florida A&M University. Tallahassee, 32307, Florida, USA) ;
  • Cooperwood, John-S. (College of Pharmacy and Pharmaceutical Science, Florida A&M University. Tallahassee, 32307, Florida, USA) ;
  • You, Zhengqing (College of Pharmacy and Pharmaceutical Science, Florida A&M University. Tallahassee, 32307, Florida, USA) ;
  • Ko, Dong-Hoon (College of Pharmacy and Pharmaceutical Science, Florida A&M University. Tallahassee, 32307, Florida, USA)
  • 발행 : 2002.04.01

초록

The prodrug and antedrug concepts, which were developed to overcome the physical and pharmacological shortcomings of various therapeutic classes of agents, employ diametrically different metabolic transformations. The prodrug undergoes a predictable metabolic activation prior to exhibiting its pharmacological effects in a target tissue while the antedrug undergoes metabolic deactivation in the systemic circulation upon leaving a target tissue. An increased therapeutic index is the aspiration for both approaches in designing as well as evaluation criteria. The recent research endeavors of prodrugs include the gene-directed and antibody-directed enzymatic activation of a molecule in a targeted tissue, organ specific delivery, improved bioavailabilities and cellular penetration of nucleotides. As for antedrugs, emphasis in research has been based upon the design and synthesis of systemically inactive molecule by incorporating a metabolically labile functional group into an active molecule.

키워드

참고문헌

  1. Aghi, M., Kramm, C. M., Chou, T. C., Breakefield, X. O. and Chiocca, E. A., Synergistic anticancer effects of ganciclovir/thymidine kinase and 5-fluorocytosine deaminase gene therapies. J. Natl. Cancer Inst., 90, 370-380 (1998) https://doi.org/10.1093/jnci/90.5.370
  2. Albert, A., Chemical aspects of selective toxicity. Nature, 182, 421-423(1958) https://doi.org/10.1038/182421a0
  3. Arimilli, M. N., Kim, C. U., Dougherty, J., Mulato, A., Oliyai, R, Shaw, J. P., Cundy, K. C., Bischofberger, N., Synthesis, In Vitro Biological Evaluation and Oral Bioavailability of 9-[2(Phosphonomethoxy)propyl]adenine (PMPA) Prodrugs. Antiviral Chem. Chemother., 8, 557-564 (1997) https://doi.org/10.1177/095632029700800610
  4. Austin, E. A. and Huber B. E., A first step in the development of gene therapy for colorectal carcinoma: cloning, sequencing, and expression of E. coli cytosine deaminase. Mol. Pharmacol. 43, 380-387 (1993)
  5. Avery, M. A. and Woolfrey, J. R., Antiinflammatory steroids. In Wolff, ME (Ed.), Medicinal Chemistry and Drug Discovery. John-Wiley&Sons, Inc. 281-376 (1997)
  6. Bagshawe, K. D. and Begent, R. H. J., First clinical experience with ADEPT. Adv. Drug Delivery Rev., 22, 365-367 (1996) https://doi.org/10.1016/S0169-409X(96)00443-7
  7. Bagshawe, K. D., Sharma, S. K., Springer, C. J. and Rogers, G. T., Antibody-Directed Enzyme Prodrug Therapy (ADEPT): a review of some theoretical, experimental and clinical aspects. Analytical Oncology, 5, 879 (1994) https://doi.org/10.1093/oxfordjournals.annonc.a058725
  8. Bagshawe, K. D., Springer, C. J. Searle, F., Antoniw, P., Shama, S. K., Melton, R. G. and Sherwood, R. F., A cytotoxic agent can be generated selectively at cancer sites. Br. J. Cancer, 58, 700-703 (1988) https://doi.org/10.1038/bjc.1988.293
  9. Balzarini, J., Aquaro, S., Perno, C.-F., Witvrouw, M., Holy, A, De Clerq, E., Activity of the (R)-Enantiomers of 9-(2Phosphonylmethoxypropyl) adenine and 9-(2-PhosphonyImethoxypropyl)-2,6-Diaminopurine Against Human Immunodeficiency Virus in Different Human Cell Systems. Biochem. Biophys. Res. Comm., 219, 337-341 (1996) https://doi.org/10.1006/bbrc.1996.0234
  10. Balzarini, J., Egberink, H., Hartmann, K., Cahard, D., Vahlenkamp, T., Thormar, H., De Clercq, E, McGuigan, C., Antiretrovirus Specificity and Intracellular Metabolism of 2,3-Didehydro-2,3-dideoxythymidine (Stavudine) and Its 5-Monophosphate Triester Prodrug S0324. Mol. Pharmacol., 50, 1207-1213 (1996b)
  11. Balzarini, J., Egberink, H., Hartmann, K., Karlsson, A., Perno, C.F., Cahard, D., Naesens, L., Thormar, E., De Clercq, E., McGuigan, C., Mechanism of Anti-HIV Action of Masked Alaninyl 2,3-Dideoxy-2,3-Didehydrothymidine 5-Monophosphate Derivatives. Antiviral Res., 30, A18 (1996d)
  12. Balzarini, J., Holy, A., Jindrich, J., Naesens, L., Snoeck, R., Schols, D., De Clercq E., Differential Antiherpesvirus and Antiretrovirus Effects of the (S) and ${\circledR}$ Enantiomers of Acyclic Nucleoside Phosphonates: Potent and Selective In Vitro and In Vivo Antiretrovirus Activities of (R)-9-(2-Phosphonylme-thoxypropyl)- 2,6-Diaminopurine. Antimicrob. Agents and Chemother., 37, 332-338 (1993) https://doi.org/10.1128/AAC.37.2.332
  13. Balzarini, J., Karlsson, A., Aquaro, S., Perno, C.F., Cahard, D., Naesens, L., De Clercq, E., McGuigan, C., Mechanism of anti-HIV action of masked alaninyl d4T-MP derivatives. Proc, Natl. Acad. Sci. USA, 93, 7295-7299 (1996a) https://doi.org/10.1073/pnas.93.14.7295
  14. Balzarini, J., Kruining, J., Wedgwood, O., Pannecouque, C., Aquaro, S., Perno, C.F., Naessens, L., Witvrouw, M., Heijtink, R., De Clercq, E., McGuigan, C., Conversion of 2, 3Dideoxyadenosine (ddA) and 2, 3-Didehydro-2, 3-dideoxyadenosine (d4A) to Their Corresponding Aryloxyphosphoramidate Derivatives Markedly Potentiates Their Activity Against Human Immunodeficiency Virus and Hepatitis B Virus. FEBS Letters, 410, 324-328 (1997) https://doi.org/10.1016/S0014-5793(97)00616-9
  15. Balzarini, J., Naesens, L., Slachmuylders, J., Niphuis, H., Rosenburg, I., Holy, A., Schellekens, H., De Clerq, E, 9-(2Phosphonylmehtoxyethyl) adenine (PMEA) Effectively Inhibits Retrovirus Replication In Vitro and Simian Immunodeficiency Virus Infection in Rhesus Monkeys. AIDS, 5, 21-28 (1991)
  16. Balzarini, J., Wedgwood, O., Kruining, J., Pelemans, H., Heijtink, R., De Clercq, E, McGuigan, C., Anti-HIV and Anti-HBV Activity and Resistance Profile of 2, 3-Dideoxy-3-Thiacytidine (3TC) and Its Arylphosphoramidate Derivative CF 1109. Biochem. Biophys. Res. Comm., 225, 363-369 (1996c) https://doi.org/10.1006/bbrc.1996.1181
  17. Barnes, P. J., Anti-inflammatory actions of glucocorticoids: molecular mechanisms. Clinical Science, 94, 557-572 (1998) https://doi.org/10.1042/cs0940557
  18. Beaucamp, L. M., Orr, G. F., de Miranda, P., Burnette, T., Krenitsky, T. A., Amino Acid Ester Prodrugs of Acyclovir. Antiviral Chem. Chemother., 3, 157-164 (1992) https://doi.org/10.1177/095632029200300305
  19. Beltinger, C., Fulda, S., Kammertoens, T., Uckert, Wand Debatin, K. M., Mitochondrial amplification of death signals determines thymidine kinase/ganciclovir-triggered activation of apoptosis. Cancer Res., 60, 3213-3217 (2000)
  20. Bentires-Alj, M., Hellin, A. C. and Lechanteur, C., Cytosine deaminase suicide gene therapy for peritoneal carcinomatosis. Cancer Gene Ther., 7, 20-26 (2000) https://doi.org/10.1038/sj.cgt.7700093
  21. Benzaria, S., Pelicano, H., Johnson, R., Maury, G., Imbach,J.L., Aubertin, AM., Obert, G., Gosselin, G., Synthesis, In Vitro Antiviral Evaluation, and Stability Studies of Bis(S-acyl2-thioethyl) Ester Derivatives of 9-[2-(Phosphonomethoxy)ethyl]adenine (PMEA) as Potential PMEA Prodrugs with Improved Oral Bioavailability. J. Med. Chem., 39, 4958-4965(1996). https://doi.org/10.1021/jm960289o
  22. Biggadike, K., Angell, R. M., Burgess, C. M., Farrell, R. M., Hancock, A. P, Harker, A. J., Irving, W. R., Ioannou, C., Procopiou, P.A., Shaw, R. E., Solanke, Y. E., Singh, O. M. P., Snowden, M. A, Stubbs, R. J., Walton, S. and Weston, H. E, Selective plasma hydrolysis of glucocorticoid g-lactones and cyclic carbonates by the enzyme paraoxonase: an ideal plasma inactivation mechanism. J. Med. Chem., 43, 19-21 (2000) https://doi.org/10.1021/jm990436t
  23. Biggadike, K., Lynn, S. M., Procopiou, P. A., Shaw, R. E. and Williamson, C. J. Chem. Soc., Perkin Trans. 1, 813-818 (2000)
  24. Blakey, D. C., Valcaccia, B. E., East, S., Wright, A. F., Boyle, F. T., Springer, C. J., Burke, P. J., Melton, R.G. and Bagshawe, K.D., Antitumor effects of an antibody-carboxypeptidase G2 conjugate in combination with a benzoic acid mustard prodrug. Cell. Biophys., 22,1-8 (1993) https://doi.org/10.1007/BF03033863
  25. Bloch, A., Robins, M. J., McCarthy, J. R., Jr., The role of the 5Hydroxyl Group of Adenosine in Determining Substrate Specificity for Adenosine Deaminase. J. Med. Chem., 10, 908-912 (1967) https://doi.org/10.1021/jm00317a034
  26. Bodey, G. P., Freireich, E. J., Monto, R. W, Hewlett, J. S., Cytosine Arabinoside (NSC-63878) Therapy For Acute Leukemia in Adults. Cancer Chemother. Rep., 53, 59 (1969)
  27. Bodor, N. and Buchwald, P., Soft drug design: general principles and recent applications. Med. Res. Rev., 20(1), 58-101 (2000) https://doi.org/10.1002/(SICI)1098-1128(200001)20:1<58::AID-MED3>3.0.CO;2-X
  28. Bodor, N., Recent advances in retrometabolic drug design and targeting approaches. Pharmazie, 55(3), 163-166 (2000)
  29. Boyd, M. R., Bacon, T. H., Sutton, D., Antiherpesvirus Activity of 9-(4-Hydroxy-3-hydroxymethylbut-1-yl)guanine (BRL 39123) in Animals. Antimicrob. Agents Chemother., 32, 358-363 (1988) https://doi.org/10.1128/AAC.32.3.358
  30. Boyd, M. R., Bacon, T. H., Sutton, D., Comparative Activity of Penciclovir and Acyclovir in Mice Infected Intraperitoneally with Herpes Simplex Virus Type 1 SC 16. Antimicrob. Agents Chemother., 37, 642-645 (1993) https://doi.org/10.1128/AAC.37.4.642
  31. Bronson, J. J., Ghazzouli, I., Hitchcock, M. J. M., Russel, J. W., Klunk, L. J., Kern E. R., Martin, J. C., In vivo Anti-retrovirus and Anti-cytomegalovirus Activity of 9-((2-Phosphonylmethoxy)-ethyl)adenine (PMEA). Abstracts of Papers; 5th International Conference on AIDS, Montreal, Canada, Abstract M.C.P 74 (1989)
  32. Brouilette, G., Kawamura, M., Kumar, G. N. and Bodor, N., Soft drugs. 21. Design and evaluation of soft analogs of propantheline. J. Pharm. Sci. 85, 619 (1996) https://doi.org/10.1021/js950435y
  33. Caruso, M., Panis, Y, Gagandeep, S., Houssin, D., Salzmannn, J. L. and Klatzmann, D., Regression of established macroscopic liver metastases after in situ transduction of a suicide gene. Proc. Natl. Acad. Sci. USA, 90, 7024-7028 (1993) https://doi.org/10.1073/pnas.90.15.7024
  34. Chu, C. K., Bhadti, V. S., Doshi, K. J., Etse, J. T., Gallo, J. M., Boudinot, F. D., Schinazi, R. F., Brain Targeting of Anti-HIV Nucleosides: Synthesis and In Vitro and In Vivo Studies of Dihydopyridine Derivatives of 3-Azido-2,3-dideoxyuridine and 3-Azido-3-deoxythymidine. J. Med. Chem., 33, 2188-2192 (1990) https://doi.org/10.1021/jm00170a023
  35. Culver, K. W., Ram, Z., Wallbridge, S., Ishii, H., Oldfield, E. H. and Blaese, R. M., In vivo gene transfer with retroviral vectorproducer cells for treatment of experimental brain tumors. Science, 256,1550-1552 (1992) https://doi.org/10.1126/science.1317968
  36. Dayer, P., Kubli, A, Kupfer, A, Courvoisier, F., Balant, L. and Fabre, J. Defective hydroxylation of bufuralol associated with side-effects of the drug in poor metabolizers. Br. J. Clin. Pharmacol., 12,750-751 (1982)
  37. De Clerq, E., Broad-spectrum anti-DNA virus and anti-retrovirus activity of phosphonylmethoxyalkylpurine and pyrimidines. Biochem. Pharmacol., 42, 963-972 (1991) https://doi.org/10.1016/0006-2952(91)90276-B
  38. De Miranda, P., Blum, M. R., Pharmacokinetics of Acyclovir After Intranvenous and Oral Administration. J. Antimicrob. Chemother., 12 (Suppl. B) 29-37 (1983)
  39. Dessolin, J., Vlieghe, P, Bouygues, M., Medou, M., Quelever, G., Camplo, M., Chermann, J. C., Kraus, J. L., Tri-N-Boc-Tetraazamacrocycle- Nucleoside Conjugates: Synthesis and Anti-HIV Activities. Nucleosides & Nucleotides, 17, 957-968 (1998) https://doi.org/10.1080/07328319808003466
  40. Domin, B. A, Mahony, W B. and Zimmerman, T P, Transport of 5-fluorouracil and uracil into human erythrocytes. Biochem. Pharmacol., 46, 503-510 (1993) https://doi.org/10.1016/0006-2952(93)90527-4
  41. Elion, G. B., The biochemistry and mechanism of action of acyclovir. Antimicrob. Chemother., 12, Suppl. B:9-17 (1983)
  42. Elshami, A. A., Saavedra, A., Zhang, H., Kucharczuk, J. C., Spray, D. C., Fishman, G. I., Amin, K. M., Kaiser, L. R. and Albeda S. M., Gap junctions playa role in the 'bystander effect' of the herpes simplex virus thymidine kinase ganciclovir system in vitro. Gene Ther., 3, 85-92 (1996)
  43. Eltahir, A., Heys, S. D., Hutcheon, A. W., Sarkar, T. K., Smith, I., Walker, L. G., Ah-See, A. K. and Eremin, O., Treatment of large and locally advanced breast cancers using neoadjuvant chemotherapy. Am. J. Surg., 175, 127-132 (1998) https://doi.org/10.1016/S0002-9610(97)00279-1
  44. Erhardt, P.W., Woo, C. M., Gorzynski, R. J. and Anclerson, W.G., Ultrashort-acting b-adrenergic blocking agent. 1. (Aryloxy)-propanolamines containing esters in the nitrogen substituent. J. Med. Chem., 25,1402-1407 (1982) https://doi.org/10.1021/jm00354a002
  45. Farquhar, D., Khan, S., Srivastva, D. N., Saunders, P. P., Synthesis and Antitumor Evaluation of Bis[(Pivaloyloxy) methyl]-2-Deoxy-5-Fluorouridine 5-Monophosphate (Fd-UMP): A Strategy to Introduce Nucleotides into Cells. J. Med. Chem., 37, 3902-3909 (1994) https://doi.org/10.1021/jm00049a009
  46. Filer, C. W., Allen, G. D., Brown, T. A., Metabolic and Pharmacokinetic Studies Following Oral Administration of 14C-Famciclovir to Healthy Subjects. Xenbiotica 24, 357-368 (1994) https://doi.org/10.3109/00498259409045899
  47. Fiorino, T., Current and future treatment of inflammatory bowel disease. Drug & Market Development. 42-48 (2000)
  48. Freeman, S. M., Abboud, C. N., Whartenby, K. A., Packman, C. H., Koeplin, D. S., Moolten, F. L., Abraham, G. N., The 'bystander effect': tumor regression when a fraction of the tumor mass is genetically modified. Cancer Res., 53, 5274-5283 (1993)
  49. Freeman, S. M., McCune, C., Robinson, W., Abboud, C. N., Abraham, G. N., Angel, C. and Marrogi, A, The treatment of ovarian cancer with a gene modified cancer vaccine: a phase I study. Hum. Gene Ther., 6, 927-939 (1995) https://doi.org/10.1089/hum.1995.6.7-927
  50. Freeman, S. M., Ramesh, Rand Marrogi, A. J., Immune system in suicide gene therapy. Lancet, 349, 2-3 (1997) https://doi.org/10.1016/S0140-6736(97)22001-5
  51. Fridland, A., Robbins, B. L., Srinivas, R. V.. Arimilli, M., Kim, C., Bischofberger, N., Antiretroviral Activity and Metabolism of bis(POC)PMPA, an Oral Bioavailable Prodrug of PMPA. Antiviral Res., 34, A49, 27 (1997) https://doi.org/10.1016/S0166-3542(96)01019-4
  52. Friend, D. R., Phillips, S. and Tozer, T.N., Colon-specific drug delivery from a glucoside prodrug in the guinea pig. Efficacy study. J. Control Release, 15, 47-54 (1991) https://doi.org/10.1016/0168-3659(91)90102-J
  53. Frishman, W. H. and Hershman, D., Beta-adrenergic blocking drugs in cardiac disorders. In Cardiovascular Drug Therapy, 2nd ed., Messerli, F. H., Ed.; W B. Saunders Co., New York, 465-474 (1996)
  54. Ge, K., Xu, L., Zheng, Z., Xu, D., Sun, L. and Liu, X., Transduction of cytosine deaminase gene makes rat glioma cells highly sensitive to 5-fluorocytosine. Int. J. Cancer, 71, 675-679 (1997) https://doi.org/10.1002/(SICI)1097-0215(19970516)71:4<675::AID-IJC26>3.0.CO;2-9
  55. Geddes, D. M., Inhaled corticosteroids: Benefits and risks. Thorax, 47, 404-407 (1992) https://doi.org/10.1136/thx.47.6.404
  56. Giradet, J.L., Gosselin, G., Perigaud, C., Balzarini, J., De Clercq, E., Imbach, J.-L., Nucleosides & Nucleotides, 14, 645-647 (1995a) https://doi.org/10.1080/15257779508012442
  57. Girardet, J.L., Perigaud, C., Aubertin, A.M., Gosselin, G., Kim, A, Imbach, J.L., Bloorg. Med. Chem. Lett., 5, 2981-2984 (1995b) https://doi.org/10.1016/0960-894X(95)00525-7
  58. Hamamoto, U., Nakashima, H., Matsui, A., Matsuda, A, Ueda, T, Yamamoto, N., Inhibitory Effects of 2,3-Didehydro-2,3-Dideoxynucleosides on Infectivity, Cytopathic Effects and Replication of Human Immunodeficiency Virus. Antimicrob Agents Chemother., 31,908 (1987)
  59. Hamamoto, U., Nakashima, H., Matsui, A., Matsuda, A., Ueda, T., Yamamoto, N., Inhibitory Effects of 2,3-Didehydro-2,3-Dideoxynucleosides on Infectivity, Cytopathic Effects and Replication of Human Immunodeficiency Virus. Antimicrob. Agents Chemother., 31, 908 (1987)
  60. Hamilton, T. C. and Parkes, M. W., Bufuralol, a new betaadrenoceptor blocking agent in a series of benzofuran-2-ethanolamines. Part 2: Pharmacology. Arzneim.-Forsch. 27, 1410-1417 (1977)
  61. Hanna, N. N., Mauceri, H. J., Wayne, J. D., Hallahan, D. E., Kufe, D. Wand Weichselbaum, R. R., Viral directed cytosine deaminase/5-fluorocytosine gene therapy enhances radiation response in human cancer xenografts. Cancer Res., 57, 4205-4209 (1997)
  62. Harden, M. R., Jarvest, R. L., Boyd, M. R., Sutton, D., Vere Hodge, R. A., Prodrugs of Selective Antiherpesvirus Agent 9-[4-Hydroxy-3-(hydroxymethyl)but-1-yl]guanine (BRL 39123) with Improved Gastrointestinal Absorption Properties. J. Med. Chem., 32,1738-1743 (1989) https://doi.org/10.1021/jm00128a012
  63. Harnden, M. R., Jarvest, R. L., Bacon, T. H., Boyd, M. R., Synthesis and Antiviral Activity of 9-[4-Hydroxy-3(hydroxymethyl)but-1-yl]purines. J. Med. Chem., 30, 1636-1642 (1987) https://doi.org/10.1021/jm00392a020
  64. Harnden, M. R., Jarvest, R. L., Boyd, M. R., Sutton, D., Vere Hodge, R. A., Prodrugs of the Selective Antiherpesvirus Agent 9-[4-Hydroxy-3-(hydroxymethyl)but-1-yl]guanine (BRL 39123) with Improved Gastrointestinal Absorption Properties. J. Med. Chem., 33,1765-1773 (1989a)
  65. Heiman, A. S., Hickman, F., Ko, D.-H. and Lee, H. J., New steroidal anti-inflammatory antedrugs bind to macrophage glucocorticoid receptors and inhibit nitric oxide generation. Steroids, 63, 644-649 (1998) https://doi.org/10.1016/S0039-128X(98)00074-9
  66. Heiman, A.S., Ko, D.-H., Chen, M. and Lee, H. J., New steroidal anti-inflammatory antedrugs: Methyl 3,20-dioxo-9a-fluoro-11 b,17a,21-trihydroxy-1 ,4-pregnadiene-16acarboxylate and methyl 21-acetyloxy-3,20-dioxo-11 b,17adihydroxy-9a-fluoro-1,4-pregnadiene-16a-carboxylate. Steroids, 62, 491-499 (1997) https://doi.org/10.1016/S0039-128X(97)00020-2
  67. Higuchi, T., Stella, V., Eds. ACS Symp. Ser., no. 14 (1975). Holland, J. F., Glidewell, O., Complementary Chemotherapy in Acute Leukemia. Recent Results Cancer Res., 30, 95 (1970)
  68. Hong, C. I., Kirisitis, A. J., Buchheit, D. J., Nechaev, A., West, C. R., 1 b-D-Arabinofuranosylcytosine Conjugates of Thioether Phospholipids as a New Class of Potential Antitumor Drugs. Cancer Drug Delivery, 3, 101-113 (1986) https://doi.org/10.1089/cdd.1986.3.101
  69. Hong, C. I., Nechaev, A., Kirisits, A. J., Vig, R., West, C. R., Manouilov, K. K., Chu, C. K., Nucleoside Conjugates. 15. Synthesis and Biological Activity of Anti-HIV Nucleoside Conjugates of Ether and Thioether Phospholipids. J. Med. Chem., 39, 1771-1777 (1996) https://doi.org/10.1021/jm950620o
  70. Hong, C. I., Nechaev, A, West, C. R., Nucleoside Conjugates as Potential Antitumor Agents. 2. Synthesis and Biological Activity of 1-(b-D-Arabinofuranosyl)cytosine Conjugates of Prednisolone and Prednisone. J. Med. Chem., 22, 1428-1432 (1979a) https://doi.org/10.1021/jm00197a030
  71. Hong, C. I., Nechaev, A., West, C. R, Nucleoside Conjugates as Potential Antitumor Agents. 2. Synthesis and Biological Activity of 1-(b-D-Arabinofuranosyl)cytosine Conjugates of Prednisolone and Prednisone. J. Med. Chem., 22, 1428-1432 (1979b) https://doi.org/10.1021/jm00197a030
  72. Hortobagyi, G. N., Anthracyclines in the treatment of cancer: an overview. Drugs, 54,1-7 (1997)
  73. Hostetler, K. Y., Richman, D. D., Sridhar, C. N., Gardner, M. F., Antiviral Activity of Phosphatidyl-dideoxycytidine in Hepatitis B Infected Cells and Enhanced Hepatitic Uptake in Mice. Antiviral Res., 24, 59-67 (1994) https://doi.org/10.1016/0166-3542(94)90052-3
  74. Huber, B. E., Austin, E. A., Richards, C. A., Davis, S. T. and Good, S. S., Metabolism of 5 fluorocytosine in human colorectal tumor cells transduced with the cytosine deaminase gene: significant antitumor effects when only a small percentage of tumor cells express cytosine deaminase. Proc. Natl. Acad. Sci. USA, 91,8302-8306 (1994) https://doi.org/10.1073/pnas.91.17.8302
  75. Huber, B. E., Austin, E. S., Good, S. S., Knick, V. C., Tibbels, S. and Richards, C. A., In vivo antitumor activity of 5-fluorocytosine on human colorectal carcinoma cells genetically modified to express cytosine deaminase. Cancer Res., 53, 4619-4626 (1993)
  76. Hwang, S. K., Juhasz, A., Yoon, S. H. and Bodor, N., Design, synthesis and evaluation of soft bufuralol analogues. J. Med. Chem., 43(8), 1525-1532 (2000) https://doi.org/10.1021/jm9904654
  77. Ichikawa, T., Tamiya, T., Adachi, Y., Ono, Y., Matsumoto, K., Furuta, T., Yoshida, Y., Hamada, H. and Ohmato, T., In vivo efficacy and toxicity of 5-fluorocytosine/cytosine deaminase gene therapy for malignant gliomas mediated by adenovirus. Cancer Gene Ther., 7, 74-82 (2000) https://doi.org/10.1038/sj.cgt.7700086
  78. Ji Y., Moog, C., Schmitt, G., Bischoff, P., Luu, B., Monophosphoric Acid Diesters of 7b Hydroxycholestrol and of Pyrimidine Nucleosides as Potential Antitumor Agents: Synthesis and Preliminary Evaluation of Antitumor Activity. J. Med. Chem., 33, 2264-2270 (1990) https://doi.org/10.1021/jm00170a034
  79. Ji, F., Huang, F., Juhasz, A., Wu, Wand Bodor, N., Design, synthesis and evaluation of soft glycopyrrolate and its analog. Pharmazie., 55(3), 187-191 (2000)
  80. Jones, R. J., Arimilli, M. N., Lin, K.-Y., Louie, M. S., McGee, L. R., Shaw, J. -P., Burman, D., Lee, M., Kennedy, J. A., Prisbe, E. J., Bischofberger, N., Lee, W. A., Cundy, K. C., Abstract Op11; XII International Roundtable Nucleosides, Nucleotides and their biological Application, September 15-19, La Jolla, USA (1996)
  81. Juhasz, A and Bodor, N., Cardiovascular studies on different classes of soft drugs. Pharmazie., 55(3), 228-238 (2000)
  82. Kanai, F., Lan, K. H., Shiratori, Y., Tanaka, T. Ohashi, M., Okudaira, T, Yoshida, Y., Wakimoto, H., Hamada, H., Nakabayashi, H., Tamaoki, T. and Omata, M., In vivo gene therapy for alpha-fetoprotein-producing hepatocellular carcinoma by adenovirus-mediated transfer of cytosine deaminase gene. Cancer Res., 57, 461-465 (1997)
  83. Kaneko, Y. and Tsukamoto, A., Gene therapy of hepatoma: bystander effects and non-apoptotic cell death induced by thymidine kinase and ganciclovir. Cancer Lett., 96, 105-110 (1995) https://doi.org/10.1016/0304-3835(95)03919-N
  84. Kerr, D. E., Schreiber, G. J., Vrudhula, V. M., Svensson, H. P., Hellstrom, I., Hellstrom, K. E. and Senter, P. D., Regressions and cures of melanoma xenografts following treatment with monoclonal antibody beta-lactamase conjugates in combination with anticancer prodrugs. Cancer Res., 55, 3558-3563 (1995)
  85. Khalil, M. A., Kwon, T. and Lee, H. J., A novel approach to the development of safer anti inflammatory steroids: Antedrugs. Current Topics in Med. Chem., 1,173-202 (1993)
  86. Khalil, M. A., Maponya, M. F., Ko, D.-H., You, Z., Oriaku, E. T. and Lee, H. J., New antiinflammatory steroids: [16a,17a-d]-3hydroxyiminoformylisoxazoline derivatives of prednisolone and 9a-fluoroprednisolone. Med. Chem. Res., 6, 52-60 (1996)
  87. Kimura, T., Yamaguchi, T., Usuki, K., Kurosaki, Y., Nakayama, T., Fujiwara, Y., Matsuda, Y., Unno, K. and Suzuki, T., Colonic mucosa-specific pro-antedrugs for oral treatment of ulcerative colitis: design, synthesis and fate of methyl 20-glucopyranosyloxyprednisolonates. J. Control Release, 30, 125-135 (1994) https://doi.org/10.1016/0168-3659(94)90259-3
  88. Klatzmann, D., Valery, C. A., Bensimon, G., Marro, B., Boyer, O., Mokhatari, K., Diquet, B., Salzmann, J. L. and Philippon, J., A phase 1/11 study of herpes simplex type 1 thymidine kinase 'suicide' gene therapy recurrent glioblastoma, Hum. Gene Ther., 9, 2595-2604 (1998) https://doi.org/10.1089/hum.1998.9.17-2595
  89. Ko, D.-H., Heima, A. S., Chen, M. and Lee, H. J., New steroidal anti-inflammatory antedrugs: methyl 21-desoxy-21-chloro-11b, 17a-dihydroxy-3,20-dioxo-1 ,4-pregnadiene-16acarboxylate, methyl 21-desoxy-21-chloro-11 b-hydroxy-3,20dioxo-1,4-pregnadiene-16a-carboxylate, and their 9a-fluoro derivatives. Steroids, 65, 210-218 (2000) https://doi.org/10.1016/S0039-128X(99)00103-8
  90. Ko, D.-H., Heiman, A. S., Hudson, C. E. and Lee, H. J., New steroidal antiinflammatory antedrugs: methyl 3,20-dioxo-9a-fluoro-11b,17a,21-trihydroxy-1 ,4-pregnadiene-16acarboxylate and its 21-O-acyl derivatives. Steroids, in the press (2001)
  91. Ko, D.-H., Maponya, M. F., Khalil, M. A., Oriaku, E. T., You, Z. and Lee, H. J., New anti inflammatory steroids: [16a,17a-d]-isoxazoline derivatives of prednisolone and 9a-fluoroprednisolone. Med. Chem. Res., 7, 313-323 (1997)
  92. Kodama, K., Morozumi, M., Saitoh, K., Kuninaka, A., Yoshino, H., Saneyoshi, M., Antitumor Activiy and Pharmacclogy of 1b-D-Arabinofuranosylcytosine-5-stearylphosphate: An Orally Active Derivative of 1-b-D-Arabinofuranosylcytosine. Jpn. J. Cancer Res., 80, 679 (1989) https://doi.org/10.1111/j.1349-7006.1989.tb01696.x
  93. Kuriyama, S., Mitoro, A., Yamazaki, N., Tsujinoue, H., Nakatani, T, Akahane, T., Toyokawa, Y., Karma, H., Okamoto, S. and Fukui, H., Comparison of gene therapy with the herpes simplex virus thymidine kinase gene and the bacterial cytosine deaminase gene for the treatment of hepatocellular carcinoma. Scand. J. Gsstroenterol., 34,1033-1041 (1999) https://doi.org/10.1080/003655299750025156
  94. Kwon T., Heiman A. S., Oriaku E. T., Yoon K and Lee, H. J., New steroidal antiinflammatory antedrugs: steroidal [16a,17a-d]-3-carbethoxyisoxazolines. J. Med. Chem., 38, 1048-1051 (1995) https://doi.org/10.1021/jm00006a026
  95. Labaree, D. C., Reynolds, T. Y. and Hochberg, R. B., Estradiol-16a carboxylic acid esters as locally active estrogens. J. Med. Chem., 44,1802-1814 (2001) https://doi.org/10.1021/jm000523h
  96. Lee, H. J. and Ko, D.-H., A novel approach to the discovery of non-systemic anti-inflammatory steroids: Antedrug. Arch. Pharm. Res., 22(3), 279-287 (1999) https://doi.org/10.1007/BF02976363
  97. Lee, H. J. and Soliman, M. R. I., Anti-inflammatory steroids without pituitary adrenal suppression. Science, 215, 989-991 (1982) https://doi.org/10.1126/science.6296999
  98. Lee, H. J., You, Z., Ko, D.-H. and McLean, H. M., Recent advances in prodrugs and antedrugs. Drug Discovery and Development, 1(2),235-244 (1998)
  99. Lee, H. J., You, Z., Ko, D.-H. and Yoon, K. J., New steroidal anti-inflammatory agents: Prednisolone derivatives with an isoxazoline fusion at the 16- and 17-carbons and an alkyl carboxylate at the 16a-position. Drugs Exptl. Clin. Res., 24(2),57-66 (1998)
  100. Lefebvre, I., Perigaud, C., Pompon, A., Aubertin, A.M.. Girardet, J.L., Kim, A., Gosselin, G., Imbach, J.L., Mononucleoside Phosphotriester Deravitives with S-Acyl-2-thioethyl Bioreversible Phosphate-Protecting Groups: Intracellular Delivery of 3-Azido-2,3-dideoxythymidine 5-Monophosphate. J. Med. Chem., 38, 3941-3950 (1995) https://doi.org/10.1021/jm00020a007
  101. Lewis, L. D., Fowle, A. S. E., Bittiner, S. B., Human Gastrointestinal Absorption of Acyclovir from Tablet Duodenal Infusion and Sipped Solution. Br. J. Clin. Pharmacol., 21,459-462 (1986) https://doi.org/10.1111/j.1365-2125.1986.tb05223.x
  102. Lipworth, B. J., Systemic adverse effects of inhaled corticosteroid therapy: A systematic review and metaanalysis. Arch. Intern. Med., 159(9),941-955 (1999) https://doi.org/10.1001/archinte.159.9.941
  103. Lorey, M., Meier, C., De Clerq, E., Balzarini, J., New Synthesis and Antitumor Activity of CycloSal-Derivatives of 5-Fluoro-2-deoxyuridinemonophosphate. Nucleosides & Nucleotides, 16,789-792 (1997) https://doi.org/10.1080/07328319708002952
  104. Lowenthal, R. M. and Eaton, K., Toxicity of chemotherapy. Dematol. Oncol. Clin. North Am., 10, 967-990 (1996) https://doi.org/10.1016/S0889-8588(05)70378-6
  105. Manouilov, K. K., Fedorov, I. I., Boudinot, F. D., White, C. A., Kotra, K. P., Schinazi, R. F., Hong, C. I., Chu, C. K., Lymphatic Targeting of Anti-HIV Nucleosides: Distribution of 3-Azido-3-Deoxythymidine (AZT) and 3-Azido-2,3-Deoxyuridine (AzdU) after Administration of Dipalmitoylpho-sphatidyl Prodrugs to Mice. Antiviral Chem. Chemother., 6, 230-238 (1995) https://doi.org/10.1177/095632029500600405
  106. Manouilov, K. K., Xu, Z. S., Boudinot, F. D., Schinazi, R. F. and Chu, C. K. Lymphatic Targeting of Anti-HIV Nucleosides: Distribution of 2,3-Dideoxyinosine after Intravenous and Oral Administration of Dipalmitoylphosphatidyl Prodrug in Mice. Antiviral Res., 34, 91-99 (1997) https://doi.org/10.1016/S0166-3542(96)01023-6
  107. Mar, E., C., Chiou, J. F., Cheng, Y. C. and Huang, E. S., Human cytomegalovirus-indeced DNA polymerase and its interaction with the triphosphates of 1-(2-deoxy-2-fluoro-beta-Darabinofuranosyl)- 5-methyuracil, -5-iodocytosine, and 5methylcytosine. J. Virol., 56, 846-851 (1995)
  108. Martin-du Pan, R. C., Vonlanthen, M. C. and Dubuis, J. M., Growth and collagen synthesis disorders in asthmatic children treated with inhaled steroids. Rev. Med., Suisse Romande, 119(6), 475-479 (1999)
  109. McGuigan, C., Cahard, D., Sheeka, H. M., De Clercq, E, Balzarini, J., Aryl Phosphoramidate Derivatives of d4T Have Improved Anti-HIV Efficacy in Tissue Culture and May Act by the Generation of a Novel Intracellular Metabolite. J. Med. Chem., 39,1748-1753 (1996) https://doi.org/10.1021/jm950605j
  110. McGuigan, C., Camarasa, M.J., Egberink, H., Hartmann, K., Karlsson, A, Perno, C. F., Balzarini, J., Design, synthesis and biological evaluation of novel nucleotide prod rugs as inhibitors of HIV replication. Int. Antiviral News, 5, 19-21 (1997a)
  111. McGuigan, C., Pathirana, R. N., Balzarini, J., De Clercq, E, Intracellular Delivery of Bioactive AZT Nucleotides by Aryl Phosphate Derivatives of AZT J. Med. Chem., 36, 1048-1052 (1993) https://doi.org/10.1021/jm00060a013
  112. McGuigan, C., Tsang, H.-W., Cahard, D., Turner, K., Velazquez, S., Salgado, A., Bidois, L., Naesens, L., De Clercq, E., Balzarini, J., Phosphoramidates Derivatives of d4T as Inhibitors of HIV: The Effect of Amino Acid Variation. Antiviral Res., 35,195-204 (1997b) https://doi.org/10.1016/S0166-3542(97)00029-6
  113. McLean, H. M., Heiman, A. S. and Lee, H. J., Synthesis and pharmacological evaluations of novel conjugates of steroidal antedrugs and non-steroidal anti-inflammatory drugs. Med. Chem. Res., submitted (2001)
  114. Meier, C. 4H-1.3.2.-Benzodioxaphosphorin-2-nucleosyl-2-oxide A New Concept for Lipophilic, Potential Prod rugs of Biologically Active Nucleoside Monophosphates. Angew. Chem., 108, 77-79 (1996) https://doi.org/10.1002/ange.19961080112
  115. Meier, C., De Clerq, E., Balzarini, J., Cyclo-Saligenyl-3-azido-2,3-dideoxythymidine monophosphate (CycioSal-AZTMP) A New Pro-nucleotide Approach. Nucleosides and Nucleotides, 16,793-796 (1997c) https://doi.org/10.1080/07328319708002953
  116. Meier, C., Knispel, T., De Clerq, E, Balzarini, J., ADA-Bypass by Lipophilic CycloSal-ddAMP Pro-nucleotides a Second Example of the Efficiency of the CycloSal-concept. Bioorg. Med. Chem. Lett., 7,1577-1582 (1997d) https://doi.org/10.1016/S0960-894X(97)00265-5
  117. Meier, C., Knispel, T, De Clerq, E., Balzarini, J., CycloSal-pronucleotides of 2,3-Dideoxyadenosine and 2, 3-Dideoxy-2,3-didehydroadenosine: Synthesis and Antiviral Evaluation of a Highly Efficient Nucleotide Delivery System. J. Med. Chem., 42, 1604-1614 (1999a) https://doi.org/10.1021/jm981096z
  118. Meier, C., Knispel, T., Lorey, M., Balzarini, J., Cyclo-Sal-Pronucleotides: The Design and Biological Evaluation of a New Class of Lipophilic Nucleotide Prodrugs. Int. Antiviral News, 5, 183-186 (1997a)
  119. Meier, C., Knispel, T, Marquez, V. E, Siddiqui, M. A, De Clerq, E, Balzarini, J., CycloSal-Pronucleotides of 2-Fluoro-araand 2-Fluoro-ribo-2,3-dideoxyadenosine as a Strategy to Bypass a Metabolic Blockade. J. Med. Chem., 42, 1615-1624 (1999b) https://doi.org/10.1021/jm981097r
  120. Meier, C., Lorey, M., De Clerq, E., Balzarini, J., Cyclic Saligenyl Phosphotriesters of 2,3-Dideoxy-2,3-didehydrothymidine (d4T)-A New Pro-nucleotide Approach. Bioorg. Med. Chem. Lett., 7, 99-104 (1997b) https://doi.org/10.1016/S0960-894X(96)00597-5
  121. Meier, C., Lorey, M., De Clerq, E, Balzarini, J., CycloSal-2,3-dideoxy-2,3-didehydrothymidine Monophosphate (CycloSal-d4TMP): Synthesis and Antiviral Evaluation of a New d4TMP Delivery System. J. Med. Chem., 41, 1417-1427 (1998) https://doi.org/10.1021/jm970664s
  122. Melcher, A., Todryk, S., Hardwick, N., Ford, M., Jacobson, M. and Vile, R. G., Tumor immunogenicity is determined by the mechanism of cell death via induction of heat shock protein expression. Nat. Med., 4, 581-587 (1998) https://doi.org/10.1038/nm0598-581
  123. Melton, R. G. and Sherwood, R. F., Antibody-enzyme conjugates for cancer therapy. Journal of the National Cancer Institute, 88,153 (1996) https://doi.org/10.1093/jnci/88.3-4.153
  124. Melton, R. G., Searle, F.,Sherwood, R. F., Bagshawe, K. D. and Boden, J. A., The potential of carboxypeptidase G2 antibody conjugates as anti-tumour agents. II. In vivo localizing and clearance properties in a choriocarcinoma model. Br. J. Cancer, 61, 420-424 (1990) https://doi.org/10.1038/bjc.1990.92
  125. Mesnil, M., Piccoli, C., Tiraby, G., Willecke, K. and Yamasaki, H., Bystander killing of cancer cells by herpes simplex virus thymidine kinase gene is mediated by connexins. Prac. Natl. Acad. Sci. USA, 93,1831-1835 (1996) https://doi.org/10.1073/pnas.93.5.1831
  126. Moolten, F. L., Tumor chemotherapy conferred by inserted herpes thymidine kinase genes: paradigm for a prospective cancer control strategy. Cancer Res., 46,5276-5281 (1986)
  127. Mullen, C. A., Coale, M. M., Lowe, R. and Blaese, R. M., Tumor expressing the cytosine deaminase suicide gene can be eliminated in vivo with 5-fluorocytosine and induce protective immunity to wild type tumor. Cancer Res., 54, 1503-1506 (1994)
  128. Myles, M. H., Bischofberger, N., Hoover, E A., Evaluation of 9( 2-Phosphonyl-methoxypropyl)adenine Antiviral Therapy for Acute Feline Immunodeficiency Virus Infection in Cats. 3rd International Feline Retrovirus Research Symposium 1996, Fort Collins, Col. USA
  129. Nassens, L., Balazarini, J., De Clerq, E., Therapeutic potential of PMEA as an antiviral drug. Med. Virol., 4,147-159 (1993) https://doi.org/10.1002/rmv.1980040302
  130. Niculescu-Duvaz, I. and Springer, C. J., Development of prodrugs for ADEPT (antibody-directed prodrug therapy). Expert Opinion on Investigational Drugs. 3, 289 (1996)
  131. OMalley, B. W. Jr., Chen, S. H., Schwartz, M. R. and Woo, S. L., Adenovirus-mediated gene therapy for human head and neck squamous cell cancer in a nude mouse model. Cancer Res., 55, 1080-1085 (1995)
  132. Palomino, E., Kessel, D., Horwitz, J. P., A Dihydropyridine Carriers System for Sustained Delivery of 2,3-Dideoxynucleosides to the Brain. J. Med. Chem., 32, 622 (1989) https://doi.org/10.1021/jm00123a020
  133. Pandha, H. S., Martin, L. A., Rigg, A, Hurst, H. C., Stamp, G. W., Sikora, K. and Lemoine, N. R., J. Clin. Oncol., 17, 2180-2189 (1999) https://doi.org/10.1200/JCO.1999.17.7.2180
  134. Pannecoucke, X., Parmentier, G., Schmitt, G., Dolle, F., Luu, B., Synthesis of the Phosphodiester of 3b(7b-Hydroxycholestrol) and of 5(3Deoxy, 3Azido-thymidine). Tetrahedron, 50, 1173-1178 (1994) https://doi.org/10.1016/S0040-4020(01)80828-0
  135. Pantaleo, G., Graziosi, C., Demarest, J. F., Butini, L., Montroni, M., Fox, C. H., Orenstein, J. M., Kotler, D. P., Fauci, A.S., HIV Infection is Active and Progressive in Lymphoid Tissue During the Clinical Latent Stage of Disease. Nature, 392, 355-358 (1993)
  136. Periqaud, C., Aubertin, A.M., Benzaria, S., Pelicano, H., Girardet, J.L., Maury, G., Gosselin, G., Kirn, A, Imbach, J.L., Equal Inhibition of the Replication of Human Immunodeficiency Virus in Human T-Cell Culture by ddA Bis (SATE) Phosphotriester and 3-Azido-2,3-dideoxythymidine. Biochem. Pharmacol., 48,11-14 (1994) https://doi.org/10.1016/0006-2952(94)90217-8
  137. Perigaud, C., Girardet, J.L., Lefebvre, I., Xie, M.Y., Aubertin, A.M., Kirn, A., Gosselin, G., Imbach, J.L., Sommadossi, J.P., Comparison of Cytotoxicity of Mononucleoside Phosphotriester Derivatives Bearing Biolabile Phosphate Protecting Groups in Normal Human Bone Marrow Progenitor Cells. Antiviral Chem. Chemother., 7, 338-345 (1996) https://doi.org/10.1177/095632029600700607
  138. Perigaud, C., Gosselin, G., Benzaria, S., Girardet, J.L., Maury, G., Pelicano, H., Aubertin, A.M., Kirn, A., Imbach, J.L., Bis(S-Acyl-2Thioethyl)esters of 2,3-Dideoxyadenosine 5Monophosphate are Potent Anti-HIV Agents il Cell Culture. Nucleosides & Nucleotides, 14,789-791 (1995) https://doi.org/10.1080/15257779508012472
  139. Perigaud, C., Gosselin, G., Imbach, J.L., Minireview: from the Pronucleotide Concept to the SATE Phosphate Protecting Groups. Curr. Topics in Med. Chem., 2, 15-29 (1997)
  140. Peuch, F., Gosselin, G., Lefebvre, I., Pompon, A., Aubertin, A.M., Kirn, A, Imbach, J.L., Intracellular Delivery of Nucleoside Monophosphates Through a Reductase-Mediated Activation Process. Antiviral Res., 22, 155-174 (1993) https://doi.org/10.1016/0166-3542(93)90093-X
  141. Pompon, A., Lefebvre, I., Imbach, J.-L., Khan, S., Farquhar, D.; Antiviral Chem. Chemother., 5, 91-98 (1994) https://doi.org/10.1177/095632029400500205
  142. Procopiou, P. A., Biggadike, K., English, A. F., Farrell, R. M., Hagger, G. N., Hancock, A. P., Haase, M. V., lrvinq, W. R., Sareen, M., Snowden, M. A., Solanke, Y. E., Tralau-Stewart, C. J., Walton, S. and Wood, J. A., Novel glucocorticoid antedrugs possessing a 17b-(g-lactone) ring. J. Med. Chem., 44, 602-612 (2001) https://doi.org/10.1021/jm001035c
  143. Pue, M. A., Benet, L. Z., Pharmacokinetics of Fanciclovir in Man. Antiviral Chem. Chemother., 4 (Suppl. 1),47-55 (1993) https://doi.org/10.1177/09563202930040S602
  144. Ram, Z., Culver, K. W., Oshiro, E. IV., Viola, J. J., Devroom, H. L., Otto, E., Long, Z., Chiang, Y. McGarrity, G. J., Muul, L. M., Katz, D., Blease, R.M. and Oldfield, E. H., Therapy of malignant brain tumors by intratumoral implantation of retroviral vector-producing cells. Nat. Med., 12, 1354-1361 (1997)
  145. Rivera, G., Rhomes, J. A., Dahl, G. V., Pratt, C. B., Wood, A., Avery, T. L., Combined VM-26 and Cytosine Arabinoside in Treatment of Refractory Childhood Lymphocytic Leukemia. Cancer, 45, 1284 (1980) https://doi.org/10.1002/1097-0142(19800315)45:6<1284::AID-CNCR2820450604>3.0.CO;2-Q
  146. Roche, E. B., Design of Biopharmaceutical Properties through Prodrugs and Analogs. Academy of Pharmaceutical Sciences Symposium, Washington DC (1977)
  147. Rogers, G. T., Burke, P. J., Sharra, S. K., Koode, R. and Boden, J. A., Plasma clearance of an antibody-enzyme conjugate in ADEPT by monoclonal anti-enzyme: its effect on prodrug activation in vivo. Br. J. Cancer, 72, 1357-1363 (1995) https://doi.org/10.1038/bjc.1995.515
  148. Rolan, P., Pharmacokinetics of New Antiherpetic Agents. Clin. Pharmacokinet., 29, 333-340 (1995) https://doi.org/10.2165/00003088-199529050-00003
  149. Sakai, A., Mori, N., Shuto, S., Suzuki, T., Deacylation-Reacylation Cycle: A Possible Absorption Mechanism for the Novel Lymphotropic Antitumor Agent Dipalmitoylphosphatidylfluorouridine in Rats. J. Pharm. Sci., 83, 575-578 (1993)
  150. Sastry, J. K., Nehete, P. N., Khan, S., Nowak, B. J., Plunkett, W., Arlinghaus, R. B., Farquhar, D., Membrane-Permeable Dideoxyuridine 5-Monophosphate Analogue Inhibits Human Immunodeficiency Virus Infection. Mol. Pharmacol, 41, 441-445 (1992)
  151. Shama, S. K., Bagshawe, K. D., Burke, P. J., Boden, R. W. and Rogers, G. T., Inactivation and clearance of an anti-CEA carboxypeptidase G2 conjugate in blood after localization in a xenograft model. Br. J. Cancer, 61,659-662 (1990) https://doi.org/10.1038/bjc.1990.149
  152. Shama, S. K., Bagshawe, K. D., Springer, C. J., Burke, P. J., Rogers, G. T, Boden, J. A, Antcniw, P., Melton, R. G. and Sherwood, R. F., Antibody directed enzyme prodrug therapy (ADEPT): a three phase system. Dis. Marker, 9, 225-231 (1991)
  153. Shama, S. K., Boden, J. A., Springer, C. J., Burke, P. J. and Bagshawe, K. D., Antibody-directed enzyme prodrug therapy (ADEPT). A three phase study in ovarian tumor xenografts. Cell. Biophys., 24, 219-228 (1994)
  154. Shand, N., Weber, F., Mariani, L., Bernstein, M., Gianella-Borradori, A., Long, Z., Sorensen, A G. and Barbier, N., A phase 1-2 clinical trial of gene therapy for recurrent glioblastoma multiforme by tumor: transduction with herpes simplex thymidine kinase gene followed by ganciclovir. Hum. Gene Ther., 10, 2325-2335 (1999) https://doi.org/10.1089/10430349950016979
  155. Sharma, A. P., Ollapally, A. P., Lee, H. J., Synthesis and Anti-HIV Activity of Prodrugs of Azidothymidine. Antiviral Chem. Chemother., 4, 93-96 (1993) https://doi.org/10.1177/095632029300400203
  156. Sherwood, R., Melton, R., Alwan, S. and Hughes, P., Purification and properties of carboxypeptidase G2 from Pseudomonas sp. strain RS-16. Use of a novel triazine dye affinity method. Eur. J. Biochem., 148,447-453 (1985) https://doi.org/10.1111/j.1432-1033.1985.tb08860.x
  157. Shlipak, M. G., Simon, J. A., Vittinghoff, E., Lin, F., Barrett-Conner, E., Knopp, R. H., Levy, R. I. and Hulley, S. B., Estrogen and progestin, lipoprotein (a), and the risk of recurrent coronary heart disease events after menopause. JAMA, 283, 1845-1852 (2000) https://doi.org/10.1001/jama.283.14.1845
  158. Shuto, S., Itoh, H., Obara, T., Nakagami, K., Yaso, M., Yaginuma, S., Tsujino, M., Saito, T New Neplanocin Analogues II. Enzymatic One-Step Synthesis and Antitumor Activity of 6-(3-sn-Phosphatidyl)Neplanocin a Derivatives. Nucleosides & Nucleotides, 11,437-446 (1992) https://doi.org/10.1080/07328319208021716
  159. Shuto, S., Itoh, H.; Ueda, S., Imamura, S., Fukukawa, K., Tsujino, M., Matsuda, A, Ueda, T, A Facile Enzymatic Synthesis of 5-(3-sn-Phosphatidyl)nucleosides and Their Antileukemic Activities. Chem. Pharm. Bull., 36, 209-217 (1988) https://doi.org/10.1248/cpb.36.209
  160. Siddiqui, A. Q., Ballatore, C., McGuigan, C., De Clerq, E, Balzarini, J., The Presence of Substituents on the Aryl Moiety of the Aryl Phosphoramidate Derivative of d4T Enhances Anti-HIV Efficacy in Cell Culture: A Structure-Activity Relationship. J. Med. Chem., 42, 393-399 (1999) https://doi.org/10.1021/jm9803931
  161. Siemers, N. O., Kerr, D. E., Yarnold, S., Stebbins, M., Vrudhula, V. M., Hellstrom, I., Hellstrom, K. E. and Senter, P.D., Construction, expression, and activities of L49-sFv b-lactamase, a single-chain antibody fusion protein for anticancer prodrug activation. Bioconjug. Chem., 8, 510-519 (1997) https://doi.org/10.1021/bc9700751
  162. Smythe, W. R., Hwang, H. C., Elshami, A. A., Amin, K. M., Eck, S. L., Davidson, B. L., Wilson, J. M., Kaiser, L. R. and Albelda, S. M., Treatment of experimental human mesothelioma using adenovirus transfer of the herpes simplex thymidine kinase gene. Ann. Surg., 222, 78-86 (1995) https://doi.org/10.1097/00000658-199507000-00013
  163. Soliman, M. R. I. and Lee, H. J., Anti-inflammatory activity of acid ester derivatives of prednisolone. Res. Comm. Chem. Path. Pharm., 33(2), 357-360 (1981)
  164. Springer, C. J. and Niculescu-Duvaz, I., Gene-directed enzyme prodrug therapy (GDEPT): choice of prodrugs. Adv. Drug Deliv. Rev., 22, 351-364 (1996) https://doi.org/10.1016/S0169-409X(96)00449-8
  165. Springer, C. J., Dowell, R., Burke, P. J., Hadley, E., Davies, D. H., Blakey, D. C., Melton, R. G. and Niculescu-Duvaz, I., Optimization of alkylating agent prodrugs derived from phenol nad aniline mustards: a new clincal candidate prodrug (ZD2767) for antibody-directed enzyme prodrug therapy (ADEPT). J. Med. Chem., 38, 5051-5065 (1995) https://doi.org/10.1021/jm00026a013
  166. Srinivas, R. V., Robbins, B. L., Connelly, M. C., Gong, Y-F., Bischofberger, N., Fridland, A., Metabolism and In Vitro Antiretroviral Activities of Bis(Pivaloyloxymethyl) Prodrugs of Acyclic Nucleoside Phosphonates. Antimicrob. Agents Chemother., 37, 2247-2250 (1993) https://doi.org/10.1128/AAC.37.10.2247
  167. Starrett, J. E., Jr., Tortolani, D. R., Russel, J., Hitchcock, M. J. M., Whiterock, V., Martin, J. C., Mansuri, M. M., Synthesis, Oral Bioavailability Determination, and In Vitro Evaluation of Prodrugs of the Antiviral Agent 9-[2-(Phosphonomehtoxy)ethyl] adenine (PMEA). J. Med. Chem., 37, 1857-1864 (1994) https://doi.org/10.1021/jm00038a015
  168. Stribbling, S. M., Friedlos, F., Martin, J., Davies, L., Spooner, R. A., Marais, R. and Springer, C. J., Regressions of established breast carcinoma xenografts by carboxypeptidase G2 suicide gene therapy and the prodrug CMDA are due to a bystander effect. Hm. Gene Ther., 11, 258-292 (2000)
  169. Suzuki, T., Sato, E., Tada, H. and Tojima, Y., Examination of local anti-inflammatory activities of new steroids, hemisuccinyl methyl glycolates. Biol. Pharm. Bull., 22(8), 816-821 (1999a) https://doi.org/10.1248/bpb.22.816
  170. Suzuki, T., Tada, H., Sato, E. and Tojima, Y., Examination on biological activities and fates of new steroids, steroid-17 -ylmethyl glycolates derivatives. Tohoku J. Exptl. Med., 187(2), 127-140 (1999b) https://doi.org/10.1620/tjem.187.127
  171. Svensson, H. P., Frank, I. S., Berry, K. K. and Senter, P.D., Therapeutic effects of monoclonal antibody-b-lactamase conjugates in combination with a nitrogen mustard anticacer prodrug in models of human renal cell carcinoma. J. Med. Chem., 41,1507-1512 (1998) https://doi.org/10.1021/jm970779w
  172. Svensson, H. P., Kadow, J. F., Vrudhula, V. M., Wallace, P. M. and Senter, P. D., Monoclonal antibody-b-lactamase conjugates for the activation of a cephalosporin mustard prodrug. Bioconjug. Chem., 3,176-181 (1992) https://doi.org/10.1021/bc00014a013
  173. Tanaka, T., Kanai, F., Okabe, S., Yoshida, Y., Wakimoto, H., Hamada, H., Shiratori, Y., Lan, K.-H., Ishitobi, M. and Ornata, M., Adenovirus-mediated prodrug gene therapy for carcinoembryonic antigen-producing human gastric carcinoma cells in vitro. Cancer Res., 56, 1341-1345 (1996)
  174. Terrence, P. F., Kinjo, J.E., Lesiak, K., Balazarine, J., De Clerq, E, AIDS Dementia: Synthesis and Properties of a Derivative of 3-Azido-3-Deoxythymidine (AZT) That May Become Locked in the Central Nervous System. FEBS Lett., 234,135 (1988) https://doi.org/10.1016/0014-5793(88)81319-X
  175. Timofeevski, S. L., Panarin, E. F., Vinogradov, O. L. and Nezhentsev, M. V., Anti-inflammatory and antishock watersoluble polyesters of glucocorticoids with low level systemic toxicity. Pharm. Res., 13(3),476-480 (1996) https://doi.org/10.1023/A:1016069315423
  176. Tokunaga, Y., Iwasa, T, Fujisaki, J., Sawai, S., Kagayama, A., Liposomal Sustained-Release Delivery Systems for Intravenous Injection. IV. Antitumor Activity of Newly Synthesized Lipophilic 1-b-D-Arabinofuranosylcytosine Prodrug-Bearing Liposomes. Chem. Pharm. Bull., 36, 3574-3583 (1988a) https://doi.org/10.1248/cpb.36.3574
  177. Tokunaga, Y., Iwasa, T., Fujisaki, J., Sawai, S., Kagayama, A., Liposomal Sustained-Release Delivery Systems for Intravenouslnjection. III. AntitumorActivity of Lipophilic Mitomycin C Prodrug Bearing Liposomes. Chem. Pharm. Bull., 36,3565 (1988b) https://doi.org/10.1248/cpb.36.3565
  178. Topf, N., Worgall, N. R, Hackett, N. R and Crystal, R G., Regional prodrug gene therapy: intravenous administration of an adenoviral vector expressing the E. coli cytosine deaminase gene and systemic administration of 5-fluorocytosine suppresses growth of hepatic metastasis of colon carcinoma. Gene Ther., 5, 507-513 (1998) https://doi.org/10.1038/sj.gt.3300611
  179. Torrence, P. F., Kinjo, J., Khamnei, S., Greig, N. H., Synthesis and Pharmacokinetics of a Dihydropyridine Chemical Delivery System for the Antiimmunodeficiency Virus Agent Dideoxycytidine. J. Med. Chem., 36, 529-537 (1993) https://doi.org/10.1021/jm00057a002
  180. Touraine, R. L., Vahanian, N., Ramsey and W. J., Blaese, R. M., Enhancement of the herpes simplex virus thymidine kinase ganciclovir bystander effect and its antitumor efficacy in vivo by pharmacologic manipulation of gap junctions. Hum. Gene Ther., 9, 2385-2391 (1998) https://doi.org/10.1089/hum.1998.9.16-2385
  181. Tsai, C. C., Follis, K. E., Beck, T. W., Sabo, A., Bischofberger, N., Dailey, P. J., Effects of (R)-9-(2-Phosphonylmethoxypropyl) adenine Monotherapy on Chronic SIV Infection in Macaques. AIDS Research and Human Retroviruses, 13, 707-712 (1997) https://doi.org/10.1089/aid.1997.13.707
  182. Tsai, C. C., Follis, K. E., Sabo, A., Beck, T. W. Grant, R. F., Bischofberger, N., Benveniste, R. E., Black, R., Prevention of SIV Infection in Macaques by (R)-9-(2-Phosphony-Imethoxypropyl) adenine. Science, 270, 1197-1199 (1995) https://doi.org/10.1126/science.270.5239.1197
  183. Uchida, K., Krieis, W., Distribution of 1-b-D-Arabinofuranosylcytosine, Cytidine and Deoxycytidine in Mice Bearing ara-C Sensitive and Resistant P815 Neoplasms. BioChem. Pharmacol., 18, 1115 (1969) https://doi.org/10.1016/0006-2952(69)90115-4
  184. Valette, G., Pompon, A, Giradet, J.L., Gosselin, G., Periqaud, C., Gosselin, G., Imbach, J.L., Decomposition Pathways and in vitro HIV Inhibitory Effects of IsoddA Pronucleotides: Toward a Rational Approach for Intracellular Delivery of Nucleoside 5-Monophosphates. J. Med. Chem., 39, 1981-1990 (1996) https://doi.org/10.1021/jm9507338
  185. Van Rompay, K. K. A., Cherrington, J. M., Marthas, M. L., Berardi, C. J., Mulato, A S., Spinner, A., Tarara, R. P., Canfield, D. R., Telm, S., Bischofberger, N., Pederson, N. C., 9-[2-(Phosphomethoxy)propyl]-adenine Therapy of Established Simian Immunodeficiency Virus Infection in Infant Rhe-sus Macaques. Antimicrob. Agents Chemother., 40, 2586-2591 (1996)
  186. Vere Hodge, R. A., Sutton, D., Boyd, M. R., Harnden, M. R., Jarvest, R. L., Selection of an Oral Prodrug (BRL 42810; Famciclovir) for the Antiherpesvirus Agent BRL 39123 [9-(4Hydroxy- 3-hydroxymethylbut-1-yl)guanine; Penciclovir]. Antimicrob. Agents Chemother., 33,1765-1773 (1989) https://doi.org/10.1128/AAC.33.10.1765
  187. Vrudhula, V. M., Svensson, H. P., Kennedy, K. A., Senter, P. D. and Wallace, P. M., Antitumor activities of a cepnalosporin prodrug combination with monoclonal antibody-b-lactamase conjugates. Bioconjug. Chem., 4,334-340 (1993) https://doi.org/10.1021/bc00023a005
  188. Walker, R. E., Vogel, S. E., Jaffe, H.S., Polis, M. A., Kovacs, J., Markowitz, N., Masur, H., Lane, H. C., A Phase I/II Study of PMEA in HIV Infected Patients. Abstracts of Papers; 1st National Conference on Human Retroviruses and Related Infections, Washington DC (1993)
  189. Wei, S. J., Chao, Y., Shih, Y. L., Yarg, D. M., Hung, Y. M. and Yang, W.K., Involvement of Fas (CD95/APO-1), and Fas ligand in apoptosis induced by ganciclovir treatment of tumor cells transduced with herpes simp ex virus thymidine kinase. Gene Ther., 6, 420-431 (1999) https://doi.org/10.1038/sj.gt.3300817
  190. Whitley, R. J., Gnann, J. W., Acyclovir: A Decade Later, N. Engl. J. Med., 327, 782-788 (1992) https://doi.org/10.1056/NEJM199209103271108
  191. Xie, H., Voronkov, M., Liotta, D. C., Korba, B. A., Schinazi, R. F., Richman, D. D., Hostetler, K. Y, Phosphatidyl-2, 3-dideoxy-3-thiacytidine: Synthesis and Antiviral Activity in Hepatitis Band HIV-1 Infected Cells. Antiviral Res., 28,113-120 (1995) https://doi.org/10.1016/0166-3542(95)00042-K
  192. Yoon, K.-J., Khalil, M. A., Kwon, T. Choi, S.-J. and Lee, H. J., Steroidal anti-inflammatory antedrugs: synthesis and pharmacological evaluation of 16a-alkoxycarbonyl-17-deoxyprednisolone derivatives. Steroids, 60, 445-451 (1995) https://doi.org/10.1016/0039-128X(95)00034-N
  193. You, Z., Heiman, A S., Chen, M. and Lee, H. J., Novel steroid spiro enones: Consideration of prednisolone derivatives with diethyl oxalate. Steroids, 65, 109-115 (2000) https://doi.org/10.1016/S0039-128X(99)00088-4
  194. You, Z., Khalil, M. A., Ko, D.-H. and Lee, H. J., Suppression of the Mattox rearrangement of 16a-cyanoprednisolones in acid: synthesis of methyl 16a-prednisolone carboxylates. Tetrahedron Lett., 36(19), 3303-3306 (1995) https://doi.org/10.1016/0040-4039(95)00526-I