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作 者:赵欢[1] 韩俊毅[1] 丁涵之[1] 谢燕婷[1] 江期鑫[1] 胡皑娜 所广军[1] 尤天庚[1] 赵中辛[1]
出 处:《中华实验外科杂志》2014年第4期856-858,共3页Chinese Journal of Experimental Surgery
基 金:上海市自然科学基金资助项目(10-ZR1424300);浦东新区普外科学科带头人培养计划(PEWd2010-05)
摘 要:目的筛选大肠癌相关肿瘤睾丸抗原,为大肠癌肿瘤的诊断和免疫治疗提供依据。方法样本取自本院的大肠癌患者46例,包括癌组织(原发灶)、癌旁组织。提取样本核糖核酸(RNA)后逆转录合成单链互补脱氧核糖核酸(cDNA),利用聚合酶链反应(PCR)技术测定前列腺相关基因4(PAGE4)在各组织中的相对表达量并进行分析。结果有转移患者癌组织中PAGE4相对表达量(9.85×1014±3.67×10^-3)与无转移患者癌组织中相对表达量(3.93X10^-5±1.20X10^-4)差异有统计学意义(P〈0.05);有转移患者癌组织中PAGFA表达阳性率(25%)与癌旁组织(0)比较差异有统计学意义(P〈0.05);无转移患者癌组织中PAGE4表达阳性率(19.2%)与癌旁组织(11.5%)比较差异无统计学意义(P〉0.05)。结论PAGFA的表达可作为肿瘤转移的预测因素,转移性大肠癌者可能是针对PAGE4标靶的肿瘤免疫治疗的适宜人群。Objective To identify the cancer testis antigens associated with colorectal cancer for clinical diagnosis and immunotherapy. Methods The expression level of prostate-associated gene 4 (PAGE4) was detected by polymerase chain reaction (PCR) in the specimens, including cancer tissues, and cancer adjacent tissues from eolorectal cancer cases ( n = 46 ) in our hospital. Results There was sig nificant difference in the PAGFA expression between metastatic tissues (9. 85 x 10 ^-4 ±3.67 x 10^-3 ) and non-metastatic cancer tissues ( 3.93 x 10^ -5 ± 1.20 x 10^- 4 ) ( p 〈 0.05 ). There was significant difference in PAGE4 positive expression rate between cancer tissues (25%) and cancer adjacent tissues (0) in meta static cancer cases (P 〈 0. 05). There was no significant difference in PAGE4 positive expression rate be tween cancer tissues ( 19. 2% ) and cancer adjacent tissues ( 11.5% ) in non-metastatic cancer cases (P 〉 O. 05 ). Conclusion PAGFA might be potential predictors for metastasis of colorectal cancer and cancer testis antigen-targeted immunotherapy might be indicated for those cases with metastasis.
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