目的探讨溶瘤腺病毒携带的p53上调凋亡调控因子(PUMA)基因(Adp—PUMA)对人卵巢癌细胞株SKOV3化疗敏感性的影响,以探索增加化疗敏感性,降低化疗药物应用剂量的肿瘤治疗新策略。方法2010年8月至2011年10月在中国医学科学院肿瘤医院肿瘤研究所采用MTS[3-(4,5-二甲基噻唑之一基)-5-(3-羧基甲氧基苯基)-2-(4-磺苯基)-2H-四唑,内盐]法测定Adp—PUMA联合化疗药物对人卵巢癌细胞的生长抑制作用,并与单用化疗药物组进行对比。结果Adp—PUMA与化疗药物顺铂(cDDP)、紫杉醇(TAX)、健择(Gemzer)联合应用后作用于SKOV3细胞,IC50分别由化疗药物单独作用时的8.98、20.59、7.51降低到了1.83、2.87、1.70,且各组合用指数均〈1。此结果表明Adp—PUMA联合化疗药(cDDP,TAX,Gemzer)对卵巢癌细胞的增殖抑制作用具有协同效应,较小剂量的Adp—PUMA能增加卵巢癌化疗敏感性,降低卵巢癌细胞SKOV3对化疗药物的IC50。结论Adp—PUMA增加了SKOV3对化疗药物的敏感性,与化疗药物联合可降低化疗药物的应用剂量。
Objective To explore the value of Adp-PUMA to sensitize ovarian cancer cell lines SKOV3 to chemotherapeutic agents. Methods MTS assay was performed to analyze the effects of amplifying adenoviral vector-facilitated PUMA expression on chemotherapeutic agents-mediated cell growth inhibition in human ovarian cancer ceils. Results Combinational treatment with Adp-PUMA and chemotherapy drugs (cDDP ,TAX, Gemzar) has a synergistic effect on the inhibition of ovarian cancer proliferation, and low dose of Adp-PUMA can enhance the chemosensitivity of ovarian cancer cells. Conclusion Adp-PUMA significantly reduced the chemotherapy drugs dose,and reduced the toxic side effects. It is worthy of further evaluation.