李春磊 裴艷志 鄒志田 高磊 路通 凡航 朱曉峰
摘 要:目的 研究CCR7在NSCLC中的表達情況,探討其與NSCLC的臨床病理關系。方法 采取鏈霉素抗生物素蛋白-過氧化物酶免疫組化法檢測36例非小細胞肺癌組織、5例正常肺組織 CCR7的表達情況及肺癌組織 D2-40的表達情況。結果 CCR7主要表達在細胞膜及細胞質,36例組織標本中29例陽性表達,陽性率為80.56%;正常肺組織的陽性率為10.00%。癌組織淋巴結陽性標本中 CCR7陽性率為84.21%,陰性標本陽性率為52.94%(P<0.05)。結論 CCR7在肺癌組織中高表達,并隨著TNM分期的提高,CCR7的表達也逐漸提高。并且CCR7高表達的癌組織樣本中D2-40也呈現高表達。NSCLC淋巴結轉移與癌組織中的CC7高表達關聯密切,可能為今后預測NSCLC患者預后及治療提供有力的理論依據。
關鍵詞:非小細胞肺癌;CCR7;淋巴結轉移
中圖分類號:R734.2 文獻標識碼:A DOI:10.3969/j.issn.1006-1959.2018.17.004
文章編號:1006-1959(2018)17-0014-03
Abstract:Objective To investigate the expression of CCR7 in NSCLC and to explore its clinicopathological relationship with NSCLC. Methods The expression of CCR7 in 36 cases of non-small cell lung cancer tissues and 5 normal lung tissues and the expression of D2-40 in lung cancer tissues were detected by streptomycin avidin-peroxidase immunohistochemistry.Results CCR7 was mainly expressed in cell membrane and cytoplasm,and 29 cases were positively expressed in 36 tissue samples,the positive rate was 80.56%; the positive rate of normal lung tissue was 10.00%.The positive rate of CCR7 in cancer tissue-positive specimens was 84.21%,and the positive rate in negative specimens was 52.94%(P<0.05).Conclusion CCR7 is highly expressed in lung cancer tissues,and the expression of CCR7 is gradually increased with the increase of TNM staging.And D2-40 also showed high expression in cancer tissue samples with high CCR7 expression.NSCLC lymph node metastasis is closely related to the high expression of CC7 in cancer tissues, which may provide a powerful theoretical basis for predicting the prognosis and treatment of patients with NSCLC.
Key words:Non-small cell lung cancer;CCR7;Lymph node metastasis
肺癌(lung cancer)發生于支氣管黏膜及其腺體上皮的惡性腫瘤,是當今全世界威脅人類健康的最嚴重的惡性疾病之一,且其發病率呈逐年上升的趨勢,現已位居惡性腫瘤發病率和死亡率之首,其中80%以上是非小細胞肺癌(non-small cell lung cancer, NSCLC)[1]。現階段的治療方法以手術為主,放化療等多學科綜合治療已成為學科共識。雖然目前在肺癌早期診斷及綜合治療方面取得了相當大的進展,但目前的5年生存期仍未達到令人滿意的程度,即便是Ⅰ期的NSCLC患者根治術后,仍會有相當一部分患者發生腫瘤的復發和遠處轉移,這提示著我們這些患者術前即有可能存在著一些轉移,而淋巴結轉移最常見的途徑,所以肺癌的淋巴結轉移是臨床治療所面對的最大難題,直接影響著患者的生存期。趨化因子受體7(Chemokine receptor 7,CCR7)是一種G蛋白偶聯的7次跨膜受體,在與配體相結合,可實現腫瘤細胞與淋巴細胞歸巢類似的生物學行為,進而介導腫瘤細胞向特定器官的轉移。……