Role of Polycation for Enhancing Infectivity of Retrovirus

레트로바이러스의 감염효율 향상을 위한 고분자 양이온의 역할

  • Published : 1999.08.01

Abstract

To verify enchancing effect of polycation of polycation on the retroviral infecivity, we directly measured the binding affinity of retroviruses to the target cells in the presence or in the absence of polybrene with R18 fluorescence assay and examined the effect of the polymers on the relationship between the host cell and the retroviral infecity. There was no difference in the effect of the types of charge of the polymer on the binding affinity. However, polycations, in general, show effect on the retrovirus infecity. This results suggest that the enhancing effect of polybrene and other polycations on the infecity is not due to the binding step but due to the post-binding steps, especially the internalization step. With the result of the internalization of FITC-labeled poly-L-lysine into the host cells, it is suggested that the uptake of polycations into the host cells would play a crucial role in the intermalization of retroviruses.

유전자 전달 수단으로 사용되는 레트로바이러스의 감염 효율을 증대시키는 고분자양이온의 역할을 알아보기 위해 R18 형광 물질을 이용해 고분자 양이온 중 하나인 polybrene의 유무에 따른 레트로바이러스와 세포간의 binding affinity를 직접적으로 측정하였으며 그 외의 여러 고분자물질의 레트로바이러스의 감염에 어떠한 영향을 미치는지 알아보았다. 그 결과 고분자의 전하는 레트로바이러스와 세포간의 binding affinity에는 영향을 미치지 않았으나 감염효율을 증대시키는 것은 고분자양이온 뿐이었다. 이는 고분자양이온이 레트로바이러스의 감염시 binding과정이 아닌 그 이후의 과정, 특히 internalization 과정에 영향을 미치는 것으를 나타난다. FITC가 부착된 poly-L-lysine이 세포안으로 들어가는 사실을 통해 고분자양이온의 세포안으로의 유입이 바이러스의 internalization과정에 중대한 영향을 미치는 것을 알 수 있었다. 또한 분자량이 다른 poly-L-lysine을 이용해 고분자양이온의 경우 그 분자량에 따라 최적농도가 다름을 알 수 있었다.

Keywords

References

  1. Annu. Rev. Biochem. v.62 Human gene therapy Morgan, R. A.;W. F. Anderson
  2. Bio/Technol. v.13 The vector void in gene therapy Hudgson, C. P.
  3. Virology v.125 Entry of murine retrovirus into mouse fibroblast Anderson, K. B.;B. A. Nexo
  4. J. Virol. Methods v.54 Centrifugal enhancement of retroviral mediated gene transfer Bahnson, A. B.;J. T. Dunigan;B. E. Baysal;T. Mohney;R. W. Atchison;M. T. Nimgaonkar;E. D. Ball;J. A. Barranger
  5. Hum. Gene Ther. v.5 Improved methods of retroviral vector transduction and production for gene therapy Kotami, H.;P. B. Newton Ⅲ;S. Zhang;Y. L. Chiang;E. Otto;L. Weaver;R. M. Blaese;W. F. Anderson;G. J. McGrarrity
  6. J. Virol. v.69 Retrovirus infection: effect of time and target cell number Morgan, J. R.;J. M. Le Doux;R. G. Snow;R. G. Tompkins;M. L. Yarmush
  7. J. Virol. v.352 Plasma membrane receptors for ecotropic murine retroviruses require limiting accessory factor Wang, H.;R. Paul;R. E. Burgeson;D. R. Keene;D. Kabat
  8. J. Virol. v.1 Effect of polyions on the infectivity of rabies virus in tissue culture: Construction of a single-cycle growth curve Kaplan, M. M.;T. J. Wiktor;R. F. Maes;J. B. Campbell;H. Koprowski
  9. Virololgy v.38 Enhancement and inhibition of avian sarcoma viruses by polycations and polyanions Kumao, T.;P. K. Vogt
  10. J. Virol. v.2 Enhancing effect of diethylaminoethyl-dextran on the focus-forming titer of a murine sarcoma virus (Harvey Strain) Duc-Nguyen, H.
  11. Blood v.55 Polybrene-induced platelet agglutination and reduction in electrophoretic mobility: enhancement by von Willebrand factor and inhibition by vancomycin Coller, B.
  12. Arch Virol. v.75 The effect of hexadimethrine bromide (polybrene) on the infection of primate retroviruses SSV1/SSAV1 and BaEV Coelen, R.;D. Jose;J. May
  13. Appl. Microbiol. Biotechnol. v.22 Effect of polycations and on sensitivity of BALB/3T3 cells to murine leukemia and sarcoma virus infectivity Jarue, S. M.;A. J. Hackett;B. D. Jr. Norman
  14. Appl. Microbiol Biotechnol. v.45 Optimization of environmental factors for the production and handling of recombinant retrovirus Lee, S. G.;S. Kim;P. D. Robbins;B. G. Kim
  15. Virololgy v.38 Enhancement and inhibition of avian sarcoma viruses by polycations and polyanions Kumao, T.;K. V. Peter
  16. J. Gen. Virol. v.69 Interaction of polylysine with the cellular receptor for herpes simplex virus type 1 Nina, L.;J. M. Lindsey;H. Holm;H. Lars
  17. Chemotherapy v.43 In vitro effect of natural and semi-synthetic carbohydrate polymers on Chlamydia trachomatis infection Maria, G. P.;M. Antonella;G. Carmela;P. Silver;S. Lucilla;C. Fernanda
  18. Cell v.28 Uncoating of enveloped viruses Lenard, J.;K. D. Miller