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机构地区:[1]广州医学院第二附属医院口腔科 510260 [2]广州医学院第二附属医院病理科510260
出 处:《中华生物医学工程杂志》2012年第2期112-115,共4页Chinese Journal of Biomedical Engineering
基 金:广东省医学科研基金(A2011268)
摘 要:目的 探讨人端粒酶反转录酶(hTERT)、p53和MIB-1蛋白在口腔鳞癌组织中的表达及临床意义。方法 采用Envision免疫组织化学染色方法(IHC)检测20例口腔黏膜普通型增生、35例非典型增生(轻度10例、中度10例和重度15例)以及50例不同分化程度(高分化15例,中分化20例,低分化15例)的口腔鳞状细胞癌(OSCC)中hTERT、p53和MIB-1的表达。结果 hTERT、p53和MIB-1在E1腔黏膜普通型增生、非典型增生及不同分化程度的OSCC均有不同程度表达。OSCC表达阳性率[中分化鳞癌hTERT:60%(12/20)]高于普通型增生[hTERT:10%(2/20)]及非典型增生[中度非典型增生hTERT:30%(3/10)]。分化程度低的OSCC表达阳性率[hTERT:66.7%(10/15)]显著高于分化程度高者[hTERT:46.7%(7/15)]。结论 hTERT、p53和MIB-1在口腔OSCC发生、发展过程中起重要作用,并与OSCC的分化程度密切有关,可能是OSCC的较好预后指标。Objective To examine the expressions of human telomerase reverse transcriptase (hTERT) , p53 and MIB-1 proteins in oral squamous cell carcinoma (OSCC) and to elucidate their significance. Methods Immunohistochemical (IHC) staining was used to detect the expressions of hTERT, p53 and MIB-1 in 20 cases of oral usual mucosal hyperplasia, 35 cases of atypical hyperplasia (mild: moderate: severe=10: 10:15 cases) and 50 cases with OSCC of various differentiations (well differentiated: moderate differentiated: poorly differentiated=IS: 20:15 cases). Results hTERT, p53 and MIB-1 had different expressions in oral usual mucosal hyperplasia, atypical hyperplasia and OSCC of various differentiations. The positive expression rate of OSCC [hTERT of moderate differentiated OSCC: 60% (12/20) ] was higher than that of usual hyperplasia [ hTERT: 10% (2/20) ] and atypical hyperplasia [ hTERT of moderate atypical hyperplasia: 30% (3/10) ]. Notably, the positive expression rate of poorly differentiated OSCC [hTERT : 66.7% (10/15) ] was significantly higher than that of well differentiated OSCC [hTERT: 46.7% (7/15) ]. Conclusion hTERT, p53 and MIB - 1 play important roles in the occurrence and development of OSCC and are closely associated with the differentiation degrees, which may be favorable markers for prognosis of OSCC.
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