艾滋病感染者口腔疣状肿块人类乳头状瘤病毒感染与P53,Ki-67蛋白过度表达

目的 :了解艾滋病感染者口腔黏膜疣状肿块细胞生物学特性。方法 :应用免疫组织化学法、PCR对艾滋病感染者口腔黏膜疣状肿块、非艾滋病感染者口腔黏膜癌前病变和鳞癌组织中P5 3和Ki 67蛋白、人类乳头状瘤病毒 (HPV ) ,巨细胞病毒 (CMV)和EB病毒 (EBV )进行检测。结果 :( 1)艾滋病感染者口腔黏膜疣状肿块中P5 3蛋白阳性表达率为 2 3 % ,Ki 67蛋白阳性表达率为 76% ,二者均低于非艾滋病感染者口腔黏膜鳞癌(P <0 .0 5 ) ,但与非艾滋病感染者口腔黏膜癌前病变无明显差别 (P >0 .0 5 ) ;( 2 )艾滋病感染者口腔黏膜疣状肿块中 ,HPV感染率为 88.2 % ,明显高与非艾滋病感染者口腔黏膜癌前病变和口腔黏膜鳞癌 (P <0 .0 1)。没有检测到EBV、CMV病毒感染。结论 :艾滋病感染者口腔疣状肿块和HPV感染有关 ,存在抑癌基因突变和细胞过度增殖现象。

HPV infection,overexpression of P53 and Ki-67 protein in oral warts from HIV-positive patients

Objective: To detect P53 and Ki-67 protein,human papill om a virus (HPV),cytomegalovirus(CMV) and Epstein-Barr virus(EBV)in the warts of o ral mucosa from HIV-positive patients.Methods: The expression P53 and Ki-67 protein,HPV,EBV and CMV were detected by immunohistochemistry and PCR in 34 cases of oral mucosa warts from HIV-positve patients,33 cases of oral epithelia dysplasia and 45 cases of oral squamous cell carcinoma. Results:(1)The expression of P53 and Ki-67 protein in the cases of oral mucosa warts from HIV-positive patients were 23%and 76% re spectively,lower than those in oral suquamous cell carcinoma lesions from non- HIV individuals(62.8% and 97.8% respectively,P<0.05), but not different f rom those in dysplastic lesions from non-HIV individuals(30.3% and 78.8% res pectively,P>0.05).(2)The HPV infection in the warts of oral mucosa from HIV -positive patients was 88.2%,much higher than in oral suquamous cell carcinoma lesions (35.6%) and in dysplastic lesions (9.1%) from non-HIV individuals(P<0.01).The EBV and CMV infection was not found. Conclus ions:Most lesions of oral warts from HIV-positive patients are associ ated with the infection of HPV and show cell proliferation,some show the mutat ion of p53.