5-氟尿嘧啶加奥曲肽对乳腺癌细胞凋亡的影响

目的 探讨５－氟尿嘧啶（５－ＦＵ）加奥曲肽（善得定）对乳腺癌细胞凋亡的影响。方法取手术切除的１６例乳腺癌标本,制备癌单细胞悬液。每例癌细胞均分成４组：５－ＦＵ组（加入５－ＦＵ１０μｇ／ｍｌ）、善得定组（加入善得定０．１μｇ／ｍｌ）、５－ＦＵ加善得定组（加入５－ＦＵ１０μｇ／ｍｌ、善和定０１μｇ／ｍｌ）及对照组（不加任何药物）。用ＤＮＡ断端标记法（ＴＤＴ法）检测乳腺癌细胞癌细胞凋亡率。结果 １６例标

The effect of sandostatin and 5-fluorouracil on apoptosis in breast cancer

OBJECTIVE: To investigate the effect of 5-FU plus sandostatin on apoptosis in breast cancer. METHODS: Breast cancer samples from 16 patients were treated with 5-FU (10 microg/ml) and sandostatin (0.1 microg/ml) in vitro using the in situ terminal deoxynucleotidyl transferase assay (TDT) to detect apoptosis. The patients were female (mean age 54.4 years). In the 16 patients, 10 had positive estrogen receptor (ER) and positive progestogen receptor (PR), and the rest had negative ER and PR. RESULTS: 18 hours after addition of 5-FU, sandostatin and both, the apoptotic rate of tumor cells was (21.8 +/- 6.6)%, (14.3 +/- 8.8)%, and (26.7 +/- 6.9)% respectively. When samples were divided into 2 groups according to the sensitivity of ER and PR, the apoptotic rate of 5-FU plus sandostatin was (32.2 +/- 7.9)%, in positive ER and PR group, but (20.5 +/- 5.5)% in negative ER and PR group (P < 0.05). CONCLUSIONS: 5-FU plus sandostatin is more sensitive in the positive ER and PR group than in the negative ER and PR group. 5-FU plus sandostatin would be helpful in the biotherapy of breast cancer patients with positive ER and PR.