【摘要】：目的建立肺癌人源性腫瘤組織異種移植(patient-derived tumor xenograft,PDX)裸鼠模型,檢測原代肺癌組織標(biāo)本和第三代(F3)PDX模型組織標(biāo)本內(nèi)組織形態(tài)結(jié)構(gòu)的變化和p63、napsin A和TTF-1的表達(dá)差異性。方法取臨床肺癌新鮮手術(shù)切除標(biāo)本12例,裸鼠皮下移植建立PDX模型,HE染色比較原代患者腫瘤組織與移植瘤組織結(jié)構(gòu)和細(xì)胞形態(tài)變化與否;免疫組化的方法檢測原代組織和F3代組織標(biāo)本內(nèi)p63、napsin A和TTF-1的表達(dá)水平的差異性。顯微鏡觀察。結(jié)果成功建立傳至第三代的PDX模型5例,4例肺鱗癌,1例肺腺癌。PDX模型和患者原代腫瘤具有相同的組織學(xué)特點和排列結(jié)構(gòu);p63在肺鱗癌患者及其PDX模型癌細(xì)胞中表達(dá)陽性率為84.3%和96%,兩者之間差異無顯著性(P0.05),而在肺腺癌中呈陰性表達(dá)。Napsin A在肺腺癌患者及其PDX F3癌細(xì)胞中陽性表達(dá)率分別為66%和72.4%,兩者之間差異無顯著性(P0.05)。TTF-1在肺腺癌患者及其PDX F3癌細(xì)胞中陽性表達(dá)率分別為91%和85%,兩者之間差異也無顯著性(P0.05)。Napsin A和TTF-1在肺鱗癌中均呈陰性表達(dá)。結(jié)論本實驗室所建立的肺癌PDX模型基本保留了部分原代腫瘤的組織學(xué)特性,為臨床前藥效的個性化篩選評估以及生物標(biāo)志物的鑒定提供了有效的研發(fā)資源。
[Abstract]:Objective to establish a nude mice model of human lung cancer tissue xenotransplantation (patient-derived tumor xenograft,PDX), and to detect the morphological changes of primary lung cancer tissue and the third generation (F3) PDX model and the difference of expression of p63, napsin A and TTF-1. Methods PDX model was established by subcutaneous transplantation in 12 fresh resected specimens of lung cancer in nude mice. HE staining was used to compare the changes of tumor tissue structure and cell morphology between primary and transplanting tumor tissues, and the expression levels of p63, napsin A and TTF-1 in primary tissues and F3 tissues were detected by immunohistochemical method. Microscopic observation. Results the third generation PDX model was successfully established in 5 cases, 4 cases of lung squamous cell carcinoma and 1 case of lung adenocarcinoma. PDX model and primary tumor had the same histologic characteristics and arrangement structure. The positive rate of p63 expression in patients with lung cancer and its PDX model cancer cells was 84.3% and 96%, respectively. There was no significant difference between the two groups (P 0.05), but the positive expression rate of napsin A was 66% and 72.4% in patients with lung cancer and its PDX F3 cancer cells, respectively. There was no significant difference between the two groups (P 0.05). The positive expression rate of TTF-1 in patients with lung cancer and its PDX F3 cancer cells was 91% and 85%, respectively, and there was no significant difference between the two groups (P 0.05). Napsin A and TTF-1 were negative in lung squamous cell carcinoma). Conclusion the PDX model of lung cancer established in our laboratory basically retains the histological characteristics of some primary tumors and provides effective research and development resources for individualized screening and evaluation of preclinical efficacy and identification of biomarkers.
【作者單位】： 南京軍區(qū)南京總醫(yī)院比較醫(yī)學(xué)科;南京軍區(qū)南京總醫(yī)院心胸外科;
【分類號】：R734.2

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