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DEVELOPMENT OF AN ADRIAMYCIN RESISTANT MURINE TUMOR S-180 CELL LINE IN VIVO
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作者 张霆钧 高翠华 +1 位作者 张莉芳 韩复生 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1993年第4期9-13,共5页
Adriamycin resistant cells were obtained from low dotage treated BABL/c mice Inoculated with S-180 cells. Resistance of these cells for adriamycin was 66-fold more than their parental cells. The resistance for a typic... Adriamycin resistant cells were obtained from low dotage treated BABL/c mice Inoculated with S-180 cells. Resistance of these cells for adriamycin was 66-fold more than their parental cells. The resistance for a typical DNA topoisomerase Ⅱ inhibitor VP16 (Etopcaide) was increased 9 times. Overexpression of multidrug resistant gene (MDR gene) products, P-glycoproteins (P-1 70), was also demonstrated by immunohistochemistry. Furthermore, the ability of the resistant cells to reduce net cellular drug accumulation measured by flow fluorescence cytometry was 89-fold higher than their parental cells. These results support the hypothesis that the resistance of S-180R cells to adriamycin was mainly due to the overexpression of P-glycoproteins. The S-180R cells will be useful to select drugs or some other therapeutic strategies to overcome multidrug resistance in vivo. 展开更多
关键词 Multidrug reaistance s-180 cell line Adrlunycln VP-16
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INDUCTION OF APOPTOSIS IN S-180 AND S-180R TUMOR CELLS BY ADRIAMYCIN IN VIVO
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作者 韩复生 王晓燕 +2 位作者 张霆钧 郭莹 李陆英 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1996年第3期21-24,共4页
Apoptosis of tumor cells have become a new standard for chemotherapy. It is useful to demonstrate induction of apoptosis in tumor cells by anti-cancer drugs in vivo. We reported the results of apoptosis induction in m... Apoptosis of tumor cells have become a new standard for chemotherapy. It is useful to demonstrate induction of apoptosis in tumor cells by anti-cancer drugs in vivo. We reported the results of apoptosis induction in murine tumor cell line S-180 and it's resistant cell line S-180R by adriamycin in different dose and different time. We found that apoptosis in S-180 cells could be induced by low dose of adriamycin, the apoptosis was started at 24 h. after the administration, and reached to 62.5% of the cells to apptosis until 72 h. Comparison with the parental cell line, only 13% of S-180R cells were apoptosed. At high dose, 20% of S-180R cells were apoptosed, whereas, almost all S-180 cells were killed in the same time. The lymphocytes were appeared in abdominal cavity of the mice after treatment of adriamycin for 24 h. It was very interested to find out that there was no lymphocyte left in the abdominal cavity of the mice with S-180R cells treated at high dose of adriamycin. 展开更多
关键词 Apoptosis induction s-180 and s-180R cell lines Multidrug resistant Adriamycin.
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人胎肝中低分子天然抑瘤物对小鼠肉瘤S-180作用的研究 被引量:5
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作者 白海 吴祖泽 《中国应用生理学杂志》 CAS CSCD 1991年第2期97-100,共4页
从人胎儿肝脏中分离出一种分子量较小的抑瘤物质(FLS-MeOH),观察了它对小鼠肉瘤S-180细胞生长的抑制效应。在体外琼脂培养中,当FLS-MeOH浓度达到300μg/ml时,可完全抑制S-180细胞的集落形成;给荷瘤小鼠每日注射FLS-MeOH8mg/g体重,共20d... 从人胎儿肝脏中分离出一种分子量较小的抑瘤物质(FLS-MeOH),观察了它对小鼠肉瘤S-180细胞生长的抑制效应。在体外琼脂培养中,当FLS-MeOH浓度达到300μg/ml时,可完全抑制S-180细胞的集落形成;给荷瘤小鼠每日注射FLS-MeOH8mg/g体重,共20d,可明显延长小鼠的存活时间,部分小鼠可以无病存活。这些结果说明FLSMeOH在体内外均有明显的抗肿瘤活性,而且具有分子量小、无组织和种系特异性,以及对肿瘤细胞不可逆的毒性作用等特性。 展开更多
关键词 胎肝细胞 低分子抑瘤物 肉瘤 小鼠
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林茜草根黄酮对S-180小鼠肿瘤TG-3、MHC-Ⅰ和MHC-Ⅱ蛋白表达的影响 被引量:1
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作者 刘德财 王雪 +2 位作者 兰莹 于菁妮 张跃华 《黑龙江医药科学》 2017年第6期22-24,共3页
目的:以林茜草根醇提取总黄酮为研究对象,干预其对小鼠S-180肉瘤的抑制作用,探究抗肿瘤机制。方法:以常规ELISA检测、IH测定和RT-PCR手段,测定其在瘤体中三种蛋白TGF-β1、MHC-I、MHC-Ⅱ的上调表达;以此探索TG-3在小鼠S-180肉瘤实体瘤... 目的:以林茜草根醇提取总黄酮为研究对象,干预其对小鼠S-180肉瘤的抑制作用,探究抗肿瘤机制。方法:以常规ELISA检测、IH测定和RT-PCR手段,测定其在瘤体中三种蛋白TGF-β1、MHC-I、MHC-Ⅱ的上调表达;以此探索TG-3在小鼠S-180肉瘤实体瘤表面免疫蛋白分子的分泌,从而说明其分泌蛋白增强瘤体的免疫应答作用强度,以此机制制约瘤细胞在模型鼠体内移动和定置。结果:肿瘤细胞MHC-Ⅰ,MHC-Ⅱ和MHC-ⅠmRNA模型组显著减少;抗肿瘤逃逸机制和植物醇提取物总黄酮组显著增加。结论:林茜草根总黄酮可能能提高和增强宿主的免疫功能从而抑制小鼠S-180荷瘤,达到抑制肿瘤目的。 展开更多
关键词 林茜草根黄酮 s-180瘤株 免疫应答 转移
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Inhibitory activity of polysaccharide extracts from three kinds of edible fungi on proliferation of human hepatoma SMMC-7721 cell and mouse implanted S180 tumor 被引量:5
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作者 Jiang SM Xiao ZM Xu ZH 《World Journal of Gastroenterology》 SCIE CAS CSCD 1999年第5期404-407,共4页
AIM To determine the activities ofpolysaccharide extracts from Flammulina velutipes (Curt. ex Fr. ) Sing (FV), Lentinusedodes (LE) and Agaricus bisporus Sing (AB)on the proliferation of human hepatoma SMMC-7721 cells ... AIM To determine the activities ofpolysaccharide extracts from Flammulina velutipes (Curt. ex Fr. ) Sing (FV), Lentinusedodes (LE) and Agaricus bisporus Sing (AB)on the proliferation of human hepatoma SMMC-7721 cells in vitro and on mouse implanted S-180tumors in vivo.METHODS The polysaccharide extracts were isolated from the fruit bodies of FV, LE and AB by the methods of hot-water extraction, Sevag’sremoval of proteins, ethanol precipitation,trypsin digestion and ethanol fractionalprecipitation. Human hepatoma SMMC-7721 cells were treated with 50 mg/L Polysaccharide extracts, and the mitosis index, mitochondria activity and cell proliferation were detected at different times in both control and experimental groups. The mice with S-180 implanted tumors were injected with the polysaccharide extracts at 24 mg/ kg body weight for 9 d and the tumorweight was measured on the 15th day.RESULTS The mitosis index of hepatoma cells in vitro could be significantly decreased by treatment with the polysaccharide extracts fromthe three kinds of edible fungi (P < 0 .005 ). Thecell numbers and mitochondria activity of SMMC7721 cells treated with polysaccharide extracts were lower than those in control groups (P <0.005). The inhibition rates of polysaccharide extracts against implanted S-180 tumors in mice were 52.8%, 56.6% and 51 .9% respectivelycompared with that in c0ntrol gr0ups.CONCLUSI0N The POIysaccharide extractsfrom the three kinds of edible fungi could inhibitnot only the Cultured malignant cells in vitfO butalso impIanted Sl80 tum0r i0 vivo. 展开更多
关键词 polysaccharide edible fungi liver neoplasm carcinoma hepatocellular SMMC7721 tumor cell cultured IMPLANTED tumor s-180 CELL PROLIFERATION
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Preliminary Validation of Tumor Cell Attachment Inhibition Assay for Developmental Toxicants With Mouse S180 Cells 被引量:3
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作者 LU RONG-ZHU CHEN CHUAN-FEN +1 位作者 LIN HUI-FEN HUANG LEI-MING AND JIN XI-PENG.(Department of Preventive Medicine, Zhenjiang Medical College, 3 YizhengRoad, Zhedeng, 212001 China)(Department of Occupational Health,School of Public Health, Shanghai Medical Univer 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1999年第4期253-259,共7页
This study was designed to explore the possibility of using ascitic mouse sarcoma cell line (S180) to validate the mouse tumor cell attachment assay for developmental toxicants, and to test the inhibitory effects of v... This study was designed to explore the possibility of using ascitic mouse sarcoma cell line (S180) to validate the mouse tumor cell attachment assay for developmental toxicants, and to test the inhibitory effects of various developmental toxicants. The results showed that 2 of 3 developmental toxicants under consideration, sodium pentobarbital and ethanol, significantly inhibited S180cells attachment to Concanavalin A-coaed surfaces. Inhibition was dependent on concentration, and the IC50 (the concentration tha reduced attachment by 50% ), of these 2 chemicals was 1.2×10-3mol/L and 1 .0 mol/L, respectively. Anoher developmental toxiant, hydmiortisone, did not show inhibitory activity. Two non-developmental toxicants, sodium chloride and glycine were also tested and these did not decrease attachment rates. The main results reported here were generally sindlar to those obtained with ascitic mouse ovdrian tumor cells as a model. Therefore, this study added further evidence to the conclusion that cell specificity does not lindt attachment inhibition to Con A-coated surfaces, so S180 cell may serve as an altemative cell model, especially when other cell lines are unavailable. Furthermore, after optimal validation, it can be suggested that an S180 cell attachment assay may be a candidate for a series of assays to detect developmental toxicants. 展开更多
关键词 cell Cell In Preliminary Validation of tumor Cell Attachment Inhibition Assay for Developmental Toxicants With Mouse S180 Cells line
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桑葚花青素对S180移植瘤抑制效应及对细胞增殖凋亡影响的初步研究 被引量:5
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作者 聂超 曾庆琪 +1 位作者 张学飞 王琼 《现代中药研究与实践》 CAS 2014年第6期44-48,共5页
目的研究桑葚花青素的体内外抗肿瘤作用。方法体内考察不同剂量的桑葚花青素对荷S180瘤小鼠体重抑瘤率及脾指数、胸腺指数和肝指数的影响。体外考察应用MTT法计算不同剂量的桑葚花青素对S180细胞株的生长抑制情况;采用流式细胞术检测桑... 目的研究桑葚花青素的体内外抗肿瘤作用。方法体内考察不同剂量的桑葚花青素对荷S180瘤小鼠体重抑瘤率及脾指数、胸腺指数和肝指数的影响。体外考察应用MTT法计算不同剂量的桑葚花青素对S180细胞株的生长抑制情况;采用流式细胞术检测桑葚花青素对S180细胞株的细胞周期与细胞凋亡的影响。结果 (1)不同浓度的桑葚花青素均有一定的抑制肿瘤的作用;桑葚花青素高剂量组与低剂量组比较,P<0.05;桑葚花青素高剂量组与阳性药组比较P<0.05。(2)阳性药物组和高剂量桑葚花青素组的脾指数及胸腺指数均明显高于空白对照组。(3)通过形态学观察,5-Fu阳性对照组和不同浓度桑葚花青素肿瘤细胞数量明显减少;且MTT实验表明,阳性药物组、低剂量组及高剂量组的肿瘤细胞生长抑制率分别为66.7%、54.2%及32.1%,阳性药物组与高剂量高于低剂量组(P<0.05)。(4)流式细胞术结果表明,桑葚花青素高剂量组、低剂量组及阳性药物组的肿瘤细胞处于S期的比例显著增高(P<0.05),而且各给药组细胞凋亡率也显著增高,与空白对照组相比,具有显著性差异(P<0.01)。结论桑葚花青素在体内外均有抗S180肉瘤的作用,值得更深入的研究。 展开更多
关键词 桑葚花青素 移植瘤 S180肿瘤细胞株 增殖凋亡
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Electroporation: A New Approach Enhancing Antitumor Effects of Cytoxan 被引量:5
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作者 杨孔 YUE Bisong +4 位作者 Wang Zishu ZOU Fangdong Zhao Ermi WANG Baoyi Zhang Hong 《High Technology Letters》 EI CAS 2003年第3期36-41,共6页
Electrochemotherapy (ECT) is a novel cancer treatment in which electric pulses (EPs) inducing cell membrane pored (electroporation) are used as a means of delivering antitumor drugs to the cytoplasm of cancer cells. I... Electrochemotherapy (ECT) is a novel cancer treatment in which electric pulses (EPs) inducing cell membrane pored (electroporation) are used as a means of delivering antitumor drugs to the cytoplasm of cancer cells. In vitro, with scan electromicroscope (SEM) and Trypan blue staining examination, the best parameter of EPs of electroporation is studied by the S-180 cells exposed to EP with various voltages, pulses , capacitance. The best parameter of EP of electroporation is 600V/cm, 6 pulses, 10 μF. In the in vivo study, ECT is studied with the Cytoxan (CTX) injected directly into the tumor followed immediately by a local EP at the tumor site. Four parameters, which include the tumor inhibitory ratio, the curing ratio and the vas capillare of tumor, the tumor’s histopathological characteristics are determined and compared among the ECT group, the control group, the EP-only group and the drug-only group. The results indicate that the antitumor effect of CTX is significantly enhanced by electroporation. 展开更多
关键词 ELECTROCHEMOTHERAPY ELECTROPORATION Cytoxan s-180 tumor effect
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