Objective:To investigate drug-resistance mechanism of the camptothecin(HCPT)-resistant stomach cancer cell line SGC-7901/HCPT.
目的：探讨人胃癌耐羟基喜树碱细胞株即SGC-7901/HCPT的耐药机制。
It is prompted that there are obvious damages for the secondary structure of proteins of stomach cancer cell SGC7901 after photodynamic therapy.
实验结果表明，光动力对胃癌细胞SGC7901蛋白质二级结构造成明显损伤。
Purpose: to study the expression of MMP 7 gene in gastric cancer tissue and different stomach cancer cell line and explore its clinical significance.
目的：研究基质金属蛋白酶7基因(MMP 7)在胃癌组织及不同分化程度的胃癌细胞中的表达情况，探讨其临床意义。
Conclusions Lentinan can increase the effect of chemotherapy on stomach cancer and enhance partial cell immunity function, so it is an ideal drug for late stomach cancer.
结论香菇多糖能提高对胃癌化疗的疗效，能提高患者的部分细胞免疫功能，是治疗晚期胃癌的理想辅助药物。
Methods: DCs were derived from cord blood monocytes, then were pulsed by tumor associated antigen (TAA) extracted from human stomach cancer S-180 cell line.
方法：采用脐带血来源的单核细胞制备树突状细胞，体外经s- 180细胞肿瘤相关抗原(TAA)致敏后免疫小鼠，一周后接种s - 180细胞株。
Methods: DCs were derived from cord blood monocytes, then were pulsed by tumor associated antigen (TAA) extracted from human stomach cancer S-180 cell line.
方法：采用脐带血来源的单核细胞制备树突状细胞，体外经s- 180细胞肿瘤相关抗原(TAA)致敏后免疫小鼠，一周后接种s - 180细胞株。
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