• Title/Summary/Keyword: Prostate cancer cells

Search Result 299, Processing Time 0.022 seconds

Radiopharmaceuticals for the Therapy of Metastatic Bone Pain (뼈전이의 방사성동위원소 통증치료)

  • Ahn, Byeong-Cheol
    • Nuclear Medicine and Molecular Imaging
    • /
    • v.40 no.2
    • /
    • pp.82-89
    • /
    • 2006
  • Bone metastasis is a common sequelae of solid malignant tumors such as prostate, breast, lung, and renal cancers, which can lead to various complications, including fractures, hypercalcemia, and bone pain, as well as reduced performance status and quality of life it occurs as a result of a complex pathophysiologic process between host and tumor cells leading to cellular invasion, migration adhesion, and stimulation of osteoclastic and osteoblastic activity. Several sequelae occur as a result of osseous metastases and resulting bone pain can lead to significant debilitation. A multidisciplinary approach is usually required not only to address the etiology of the pain and its complicating factors but also to treat the patient appropriately. Pharmaceutical therapy of bone pain, includes non-steroidal analgesics, opiates, steroids, hormones, bisphosphonates, and chemotherapy. While external beam radiation therapy remains the mainstay of pain palliation of a solitary lesions, bone seeking radiopharmaceuticals have entered the therapeutic armamentarium for the treatment of multiple painful osseous lesions. $^{32}P,\;^{89}SrCl,\;^{153}Sm-EDTMP,\;^{188}Re/^{186}Re-HEDP,\;and\;^{177}Lu-EDTMP$ can be used to treat painful osseous metastases. These various radiopharmaceuticals have shown good efficacy in relieving bone pain secondary to bone metastasis. This systemic form of metabolic radiotherapy is simple to administer and complements other treatment options. This has been associated with improved mobility in many patients, reduced dependence on narcotic and non-narcotic analgesics, improved performance status and quality of life, and, in some studios, improved survival. All of these agents, although comprising different physical and chemical characteristics, offer certain advantages in that they are simple to administer, are well tolerated by the patient if used appropriately, and can be used alone or in combination with the other forms of treatment. This article illustrates the salient features of these radiopharmaceuticals, including the usual therapuetic dose, method of administration, and indications for use and also describe about the pre-management checklists, and jndication/contraindication and follow-up protocol.

Antioxidant and antiproliferating effects of Setaria italica, Panicum miliaceum and Sorghum bicolor extracts on prostate cancer cell lines (조, 기장, 수수 추출물의 항산화 효과 및 전립선 암세포주 증식 억제 효능)

  • Kim, Jeong-Ho;Cho, Hyun-Dong;Hong, Seong-Min;Lee, Ju-Hye;Lee, Yong-Seok;Kim, Du-Hyun;Seo, Kwon-Il
    • Food Science and Preservation
    • /
    • v.23 no.7
    • /
    • pp.1033-1041
    • /
    • 2016
  • In this study, we evaluated antioxidant and antiproliferating effects of Setaria italica extract (SIE), Panicum miliaceum extract (PME) and Sorghum bicolor extract (SBE). Antioxidant effects of these extracts were determined by assessing DPPH radical scavenging activity, $ABTS^+$ radical scavenging activity, reducing power and superoxide dismutase (SOD)-like activity. From high concentrations ($1,000{\mu}g/mL$) of each extract at DPPH radical scavenging activities of SIE, PME and SBE were 10.5%, 5.5% and 86.8% respectively, $ABTS^+$ radical activities were 4.92%, 5.9% and 62.3% respectively, reducing powers (OD 700) were 0.15, 0.18 and 1.7 respectively, and SOD-like activities were 17.0%, 15.9% and 38.6% respectively. In addition, SBE significantly decreased the cell viability of androgen-sensitive lymph node metastasis type of prostate cancer (LNCaP) cells in a dose-dependent manner. Morphological study of SBE-treated LNCaP cells revealed distorted and shrunken cell masses. SBE-induced cell death was confirmed by observation of nuclear condensation and increased formation of apoptotic bodies. The antiproliferative effect of SBE seems to be associated with the antioxidant activity of its polyphenol content. The results of this study indicate that SBE can exert antioxidant and antiproliferative effects and may be as a useful food material.

Biological Activities in the Leaf Extract of Lythrum salicaria L. (털부처꽃 잎 추출물의 생리활성탐색)

  • Kim, Hee-Yeon;Lim, Sang-Hyun;Park, Min-Hee;Park, Yu-Hwa;Ham, Hun-Ju;Lee, Ki-Yun;Park, Dong-Sik;Kim, Kyung-Hee;Kim, Song-Mun
    • Korean Journal of Medicinal Crop Science
    • /
    • v.18 no.6
    • /
    • pp.409-415
    • /
    • 2010
  • In this study, the bioactivities of ethanol (EELS) and water extract (WELS) from the leaf of Lythrum salicaria L. were investigated. In the anti-cancer activity, the growths of both human prostate cancer (DU145) and human colonic carcinoma cell (HT29) were inhibited up 60% by adding 10 mg/$m{\ell}$ of EELS. Anti-inflammatory activity of EELS and WELS have been evaluated on lipopolysaccharide (LPS) induced release of nitric oxide (NO) by the macrophage RAW 264.7 cells. EELS and WELS inhibited inflammatory by 57.3 and 46.9% in 10 mg/$m{\ell}$, respectively. In the anti-oxidative activity, $IC_{50}$ of DPPH radical scavenging activity was respectively 60.71 and $92.90\;{\mu}g/m{\ell}$ by EELS and WELS. In the anti-diabetic activity, $IC_{50}$ of ${\alpha}$-amylase inhibitory activity of EELS and WELS were respectively 5,250 and $5,020\;{\mu}g/m{\ell}$. $IC_{50}$ of ${\alpha}$-glucosidase inhibitory activity was 7.96 and $68.41\;{\mu}g/m{\ell}$ by EELS and WELS. In the anti-obesity, $IC_{50}$ of lipase inhibitory activity was 880 and $9,840\;{\mu}g/m{\ell}$ by EELS and WELS. Finally, EELS and WELS exhibited anti-oxidative, anti-inflammatory, anti-diabetic activity and anti-obesity. It suggests that Lythrum salicaria L. could be potentially used as a resource of bioactive materials for health functional foods.

Anti-oxidant and Anti-proliferative Effects of Water Extract Mixture of Cordyceps Militaris and Allium Tuberosum (동충하초 및 부추 혼합 물추출물의 항산화 및 암세포 증식억제 효과)

  • Hong, Seong-Min;Cho, Hyun-Dong;Kim, Jeong-Ho;Lee, Jae-Yoon;Park, Jeong-Mee;Seo, Kwon-Il
    • Journal of Life Science
    • /
    • v.26 no.7
    • /
    • pp.805-811
    • /
    • 2016
  • The present study was performed to evaluate the anti-oxidant and anti-proliferating activity of the water extract mixture of Cordyceps militaris (CM) and Allium tuberosum (AT). The water extract mixture rate of CM and AT was optimized by means of a sensory evaluation test. The optimized mixture rate were decided at 70% of CM, 30% of AT, and 10% of apple concentrate as an additive. The values of total acidity, pH, sugar contents, and turbidity of the water extract mixture were 0.1%, 4.28, 9.10 °Brix, and 1.48 respectively. The water extract mixture had effective DPPH radical scavenging activity, reducing power effect, and ABTS radical activity. DPPH radical activities of the water extract and the water extract mixture were 43.2% and 51.7% respectively; their reducing power (OD700) was 1.14 and 1.43 respectively; and ABTS.+ radical activities were 47.1% and 62.2% respectively. Also, the water extract mixture showed a higher anti-proliferating effect than the AT extract on human prostate cancer cells. These results provided experimental evidence that the water extract mixture of CM and AT is a better source of anti-oxidant and anti-cancer ingredients than a single extract of CM. In conclusion, the water extract mixture of CM and AT will be beneficial in development of a functional drink.

Purification of Recombinant CTP-Conjugated Human prostatic acid phosphatase for activation of Dendritic Cell (수지상세포 활성화를 위한 세포투과 펩타이드가 결합된 재조합 전립성 산성 인산분해효소의 정제)

  • Yi, Ki-Wan;Ryu, Kang
    • KSBB Journal
    • /
    • v.24 no.1
    • /
    • pp.80-88
    • /
    • 2009
  • Human prostatic acid phosphatase (PAP), with comprehensive homology to glandular kallikrein, are representative serum biomarkers of prostate cancer. Dendritic cell (DC), which is the potent antigen-presenting cells(APC) in the immune system, can induce strong T cell responses against viruses, microbial pathogens, and tumors. Therefore, the immunization using DC loaded with tumor-associated antigens is a powerful method for inducing anti-tumor immunity. The CTP (Cytoplasmic Transduction Peptide) technology developed by Creagene which can transport attached bio-polymers like nucleic acids or proteins into the cell with high permeation efficiency. As the active forms of PAP can mediate apoptotic processing, we used multimer forms of PAP as an inactive form for antigen pulsing of DCs. In this study, multimeric forms of CTP-rhPAP was obtained according to the advanced purification process and subsequently confirmed by gel filtration chromatography, western blot and Dynamic Light Scattering. Therefore, CTP-conjugated PA multimers transduced into the cytoplasm were efficiently presented on the cell surface without any harm effect on cells via MHC class I molecules and result in induction of a large number of effector cell.

The Ethanol Extract of Red Ginseng Enhances Anti-Tumor Effects Using Co60 Gamma Irradiation (홍삼의 에탄올 추출물의 감마선 조사를 통한 항암효과 증대)

  • Hur, Jung-Mu;Kim, Dong-Ho
    • Journal of Applied Biological Chemistry
    • /
    • v.54 no.1
    • /
    • pp.15-20
    • /
    • 2011
  • Red ginseng is one of the most popular traditional medicines in Korea. In this study, we developed a new technique in which ethanol extract of $\underline{r}$ed $\underline{g}$inseng (HRG) was exposed to the $Co^{60}$ gamma radiation ranging from 1~5 kGy. The irradiated HRG (IHRG) were analyzed by high performance liquid chromatography (HPLC) to determine any compositional changes of ginsenosides due to irradiation. No appreciable difference was observed in the HPLC pattern of ginsenosides of HRG. Using MTT assay, the cytotoxicity effect was significantly increased by IHRG compared to HRG. The $LD_{50}$ concentration was $30{\mu}g/mL$ for IHRG-1 (1 kGy), and $15{\mu}g/mL$ for IHRG-5 (5 kGy). The evidences of apoptosis, such as nuclei cleavage and Annexin V staining, were observed in the human prostate cancer PC-3 cells treated with the IHRG. Additionally, the level of reactive oxygen species (ROS) was apparently elevated by IHRG. We also studied the inhibitory effect of IHRG on the growth rate of tumor xenografts in BALB/c male mice. The tumor growth rates were inhibited by 56.9 and 76.1% in mice treated with 10 mg/kg of IHRG-1 and IHRG-5, respectively, compared with control group (21.1%). These results suggest that some biologically active and soluble components in HRG can be more effectively enhancement of anti-tumor effects using irradiation.

Cytotoxic Flavonoids from the Whole Plants of Chrysanthemum zawadskii Herbich var. latilobum Kitamura (구절초에서 분리한 Flavonoids의 인체암 세포주에 대한 세포독성 효과)

  • Kwon, Hyun-Sook;Ha, Tae-Joung;Hwang, Seon-Woo;Jin, Young-Min;Nam, Sang-Hae;Park, Ki-Hun;Yang, Min-Suk
    • Journal of Life Science
    • /
    • v.16 no.5
    • /
    • pp.746-749
    • /
    • 2006
  • Two known flavonoids, luteolin (1) and acacetin (2) were isolated from a $CHCI_3$ soluble fraction of the whole plants of Chrysanthemum zawadskii Herbich var. latilobum Kitamura, and their structures were determined by NMR analysis. The luteolin (1) was isolated from this plant for the first time. These compounds were examined for their in vitro cytotoxic activities against four human cancer cell lines including HCT116 (colon), UO-31 (renal), PC-3 (prostate) and A549 (lung) by sulforhodamine B(SRB) assay. Acacetin (2) showed significant cytotoxic activity against HCT116 and UO-31 cells with an $IC_{50}$ of 2.44 and $2.89\;{\mu}g/ml$, respectively.

Cytotoxic Effects of Tenebrio molitor Larval Extracts against Hepatocellular Carcinoma (갈색거저리 유충 추출물의 간암세포에 대한 세포독성 효능)

  • Lee, Ji-Eun;Lee, An-Jung;Jo, Da-Eun;Cho, Ju Hyeong;Youn, Kumju;Yun, Eun-Young;Hwang, Jae-Sam;Jun, Mira;Kang, Byoung Heon
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.44 no.2
    • /
    • pp.200-207
    • /
    • 2015
  • Various natural products or their derivatives, mostly originating from plants, fungi, and bacteria, have been exploited as therapeutic drugs to treat various human diseases. In addition to previously explored organisms, research on natural compounds has now expanded into unexamined living organisms in order to identify novel bioactive substances. Here, we determined whether or not the larval form of the mealworm beetle Tenebrio molitor, a species of darkling beetle, contains cytotoxic substances that exclusively affect cancer cell viability. Ethanol extract and its solvent partitioned fractions, hexane and ethyl acetate fractions, showed anticancer effects against various human cancer cells derived from the prostate (PC3 and 22Rv1), cervix (HeLa), liver (PLC/PRF5, HepG2, Hep3B, and SK-HEP-1), colon (HCT116), lung (NCI-H460), breast (MDA-MB231), and ovary (SKOV3). Cell death induced by the fractions was a mix of apoptosis, necrosis, and autophagy. The hexane fraction was administered intraperitoneally to nude mice bearing a hepatocellular carcinoma SK-HEP-1 and showed inhibition of tumor growth in vivo. Therefore, we concluded that worm extracts contain cytotoxic substances, which can be enriched by proper fractionation protocols, and further separation and purification could lead to the identification of novel molecules to treat human cancers.

Production of ${\beta}-sitosterol$ by Cell Suspension Culture of Chrysanthemum coronarium L. (쑥갓세포의 현탁배양에 의한 ${\beta}-sitosterol$ 생산)

  • Kim, Hyun-Chul;Chung, Ha-Young;Lee, So-Youn;Chung, Ho-Yong;Kim, You-Jung;Baek, Nam-In;Kim, Soung-Hoon;Choi, Geun-Won;Kim, Dae-Keun;Kwon, Byoung-Mok;Park, Mi-Hyun;Chung, In-Sik
    • Applied Biological Chemistry
    • /
    • v.48 no.4
    • /
    • pp.425-430
    • /
    • 2005
  • [${\beta}-sitosterol$] is a plant sterol that reduces cholesterol levels and inhibits the growth of human prostate and colon cancer cells. Optimal conditions for ${\beta}-sitosterol$ production were examined from cell suspension cultures of Chrysanthemum coronarium L. The callus induction was optimal in MS medium containing 1 mg/l NAA and 1 mg/l BAP. Cell suspension culture was also established from the callus. Optimal ${\beta}-sitosterol$ production was obtained when the cells were cultured at an initial density of 2 mg DCW/l in MS medium containing 1 X sucrose (30 mg/l), 1 X nitrogen (1900 mg/l $KNO_3$, 1650 mg/l $NH_4NO_3$), and 1 X phosphate source (170 mg/l). In cell suspension cultures of C. coronarium L. using shake flasks, the peak content of ${\beta}-sitosterol$ was $150{\mu}g/g$ DCW. In cell suspension cultures of C. coronarium L. using an air-lift bioreactor, the maximum ${\beta}-sitosterol$ content of $143.8{\mu}g/g$ DCW was obtained at an air-flow rate of 100 cc/min.