人非小细胞肺癌与外周血淋巴细胞表达LRP的相关性研究

目的 探讨肺耐药相关蛋白(lung resistance-related protein, LRP)在人非小细胞肺癌(non-small cell lung cancer, NSCLC)癌组织、癌旁组织和外周血淋巴细胞(peripheral blood lymphocytes, PBL)中的表达及其相关性.方法 采用S-P免疫组织化学方法检测49例人NSCLC癌组织、癌旁组织和 PBL中LRP的表达及10例正常人PBL中LRP的表达.结果 NSCLC癌组织、癌旁组织和PBL的LRP表达阳性率分别为78.2%、46.4%和66.8%,其中癌组织的LRP表达阳性率明显高于癌旁组织(P＜0.05),且与PBL的LRP表达呈正相关.在各病理类型的NSCLC中,腺癌表达阳性率最高(90.9%),鳞癌次之(55.6%),差异显著(P＜0.01).10例正常人PBL的LRP表达阳性率(20%)显著低于NSCLC患者(P＜0.05). 结论 检测NSCLC患者PBL的LRP表达可间接反映癌组织的LRP表达状况.

Correlation between expression of lung resistance-related protein in non-small cell lung cancer and that in peripheral blood lymphocytes

Objective To explore the correlation between the expression of lung resistance-related protein (LRP) in non-small cell lung cancer (NSCLC) and that in peripheral blood lymphocytes (PBL). Methods The S-P immunohistochemistry was used to detect the expression of LRP in specimens and PBL of 49 patients with NSCLC. Para-carcinoma tissues and PBL of 10 normal people were used as controls. Results The positive expression rate of LRP was 78.2%, 46.4% and 66.8% in carcinoma tissues, para-carcinoma tissues and PBL, respectively. The expression rate of LRP in carcinoma tissues was higher than that in para-carcinoma tissues (P<0.05), and positively correlated with that in PBL of the patients. The expression rate of LRP in adenocarcinomas was higher than that in squamous cell carcinomas (P<0.01). The expression rate of LRP in the normal people was lower than in NSCLC patients(P<0.05). Conclusion The expression of LRP in PBL of NSCLC patients may indirectly represent the expression of LRP in carcinoma tissues.