INDUCTION OF APOPTOSIS IN S-180 AND S-180R TUMOR CELLS BY ADRIAMYCIN IN VIVO

Apoptosis of tumor cells have become a newstandard for chemotherapy. It is useful to demonstrateinduction of apoptosis in tumor cells by anti-cancer drugsin vivo. We reported the results of apoptosis induction inmurine tumor cell line S-180 and it’s resistant cell linc S-180R by adriamycin in different dose and different time.We found that apoptosis in S-180 cells could be inducedby low dose of adriamycin, the apoptosis was started at 24h. after the administration, and reached to 62.5% of thecells to apptosis until 72 h. Comparison with theparental cell line, only 13% of S-180R cells wereapoptosed. At high dose, 20% of S-180R cells wereapoptosed, whereas, almost all S-180 cells were killed inthe same time. The lymphocytes were appeared inabdominal cavity of the mice after treatment ofadriamycin for 24 h. It was very interested to find outthat there was no lymphocyte left in the abdominal cavityof the mice with S-180R cells treated at high dose ofadriamycin.     

阿霉素在小鼠体内诱导S—180瘤细胞凋亡的作用

（１）目的探讨阿霉素对细胞凋亡的影响。（２）用低剂量（３．２５μｇ）阿霉素处理Ｓ－１８０瘤细胞腹腔接种的ＢＡＢＬ／Ｃ小鼠，０～７２ｈ取腹水，用流式细胞仪测定细胞ＤＮＡ相对含量，（３）结果阿霉素处理０，２４，４８，７２ｈ后，凋亡细胞分别占０．５％，８．３％，３８．１％，６２．５％，７２ｈ后凋亡达到高峰，并在Ｓ１－８０瘤细胞接种鼠腹水中出现依时间递增的淋巴细胞，（４）结论：阿霉素对Ｓ－１８０瘤细胞是一     

男性不育精浆中核苷酸类及蛋白质成份测定

应用紫外光吸收法,对62例不育男性及11例正常生育男性精浆中的核苷酸类和蛋白质浓度进行了测定。结果表明男性不育组精浆的蛋白质浓度、DNA和RNA浓度均较正常生育组增高(均为P<0.01);经相关分析发现,男性不育组的精子密度与其DNA和RNA浓度呈明显的负相关(均为P<0.01),嘌呤碱浓度明显低于嘧啶碱浓度(P<0.01)。提示男性不育精浆中某些生化成份有所改变。     

阿霉素诱导亲本S—180和抗药S—180—R细胞凋主恨的差异

目的探讨阿霉素对抗阿霉素细胞系Ｓ－１８０－Ｒ细胞凋亡的作用。方法用低剂量和主同剂量阿霉素分别处理亲本Ｓ－１８０和扩Ｓ－１８０－Ｒ细胞腹腔接种的ＢＡＢＬ／Ｃ鼠，７２ｈ取腹水，用流式细胞仪测定细胞ＤＮＡ相对含量。结果低剂量阿霉素７２ｈ使亲本Ｓ－１８０细胞出现６２．５％的凋亡，使抗药Ｓ－１８０－Ｒ仅出现１３．０％的凋亡细胞，高主一阿霉素７２ｈ亲本Ｓ－１８０细胞几乎全部死亡，使Ｓ－１８０－Ｒ出现２０．０％     

高剂量阿霉素对亲本S-180和抗药S-180-R瘤细胞凋亡的影响

①目的探讨高剂量阿霉素对亲本Ｓ－１８０和抗阿霉素Ｓ－１８０－Ｒ瘤细胞凋亡的影响。②方法用高剂量（１００μｇ）阿霉素处理经亲本Ｓ－１８０和抗阿霉素Ｓ－１８０－Ｒ瘤细胞腹腔接种的ＢＡＢＬ／Ｃ鼠，０～２４ｈ后取腹水，用流式细胞仪测定细胞相对ＤＮＡ含量。③结果阿霉素处理６，９，２４ｈ后，亲本Ｓ－１８０和抗阿霉素Ｓ－１８０－Ｒ瘤细胞流式图上均未出现凋亡细胞峰；在抗阿霉素Ｓ－１８０－Ｒ瘤细胞被杀伤的同时，鼠腹腔出现淋巴细胞，并且随时间推移逐渐增多，但却不能刺激Ｓ－１８０细胞接种鼠腹腔淋巴细胞的增殖。④结论高剂量（１００μｇ）阿霉素对亲本Ｓ－１８０和抗阿霉素Ｓ－１８０－Ｒ瘤细胞的杀伤不是由细胞凋亡诱导的。高剂量阿霉素对抗阿霉素Ｓ－１８０－Ｒ瘤细胞鼠腹腔中的淋巴细胞有轻微刺激增殖作用，但对Ｓ－１８０鼠腹腔的淋巴细胞却有免疫抑制作用。     

阿霉素诱导S-180瘤细胞凋亡核型分析

①目的探讨阿霉素诱导Ｓ－１８０瘤细胞凋亡过程中细胞核型的变化。②方法用低剂量（３．２５μｇ）阿霉素处理经Ｓ－１８０瘤细胞腹腔接种的ＢＡＬＡ／Ｃ鼠，０～７２ｈ分别取腹水进行细胞核型检测。③结果用阿霉素处理２４ｈ时，细胞变圆，胞浆浓缩；４８ｈ时，染色质密集度增高；７２ｈ时，核仁裂解，核膜内陷，形成内涵物不外溢的凋亡小体。④结论阿霉素是良好的细胞凋亡诱导剂，凋亡期间细胞外形及染色质凝聚逐渐改变，直至形成凋亡小体。