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作 者:李青国[1] 周士福[1] 胡会华[1] 吴玉玉[1] 高炜红[1]
机构地区:[1]苏州大学附属无锡第四医院,江苏无锡214062
出 处:《现代肿瘤医学》2007年第5期648-650,共3页Journal of Modern Oncology
摘 要:目的:探讨Survivin、Bcl-2和PCNA在乳腺癌新辅助化疗中表达变化的意义。方法:应用免疫组织化学法检测41例乳腺癌新辅助化疗前后标本中Survivin、Bcl-2和PCNA表达。结果:化疗前后Survivin、PC-NA指数变化显著,分别由化疗前的63.41%和64.15%±16.04%,降到化疗后的34.15%和46.40%±12.44%,P<0.05。Bcl-2表达无明显变化。Survivin表达与PCNA正相关,(P<0.05),与Bcl-2及肿瘤大小无关,(P>0.05)。PCNA指数变化与肿瘤大小、组织学分级相关,(P<0.05)。结论:新辅助化疗抑制肿瘤细胞增殖,促进其凋亡。Survivin和PCNA在新辅助化疗机制中起重要作用。Objective: To observe the change of Survivin,Bcl -2 and proliferate degree of carcinomas after neoadjuvant chemotherapy(NAC) in breast cancer. Methods: Survivin,Bc1-2 and proliferating cell nuclear antigen(PCNA) were examined by immunohistochemical staining in 41 breast cancer samples. Results: The expression of Survivin and PCNA index(PI) in post -neoadjuvant chemotherapy(34.15% and 46.40% ± 12.44% ) were significantly lower than that in pre- neoadjuvant chemotherapy (63.41% and 64.15 % ± 16.04% ), (P 〈 0.05 ). But Bcl -2 was not statistically significant, ('P 〉 0.05 ). Survivin had positive correlation with PCNA, (P 〈 0.05 ) ; no correlation with Bcl- 2 and tumor size, (P 〉 0. 05 ). PI positively correlated with tumor size, histological grading, (P 〈 0.05 ). Conclusion : Neoadjuvant chemotherapy inhibits the proliferation and induces apoptosis of breast cancer. Survivin and PCNA play important role in mechanism of neoadjuvant chemotherapy of breast cancer.
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