Expression and Significance of SHP-2 in Human Papillomavirus Infected Cervical Cancer

来源 :华中科技大学学报(医学)(英德文版) | 被引量 : 0次 | 上传用户:bjkhs
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This study investigated the expression and prognostic value of SHP-2 in cervical cancer caused by human papillomavirus (HPV) infection.Forty-five specimens from patients with cervical cancer (stage Ⅰ -Ⅲ),32 specimens from patients with cervical intraepithelial neoplasia (CIN) ( Ⅰ,Ⅱ) and 20 normal cervical samples from patients with hysteromyoma were collected in Department of Pathology for comparison.The expression levels of SHP-2 and IFN-β proteins were detected by using immunohistochemistry.The mRNA expression level of SHP-2 was detected by using quantitative real-time polymerase chain reaction (PCR).HPVs were detected by HPV GenoArray Test.The Spearman correlation was used to compare the expression level of SHP-2 in HPV infected cervical cancer vs non-HPV infected normal cervix.The level of SHP-2 protein expression in the cancer tissues (88.8%) was significantly higher than in CIN tissues (62.5%) and normal cervixes (45%) (P<0.05 and P<0.05,respectively).The SHP-2 mRNA levels in the cancer tissues were upregulated as compared with those in the normal cervixes (P<0.05).Twenty-one (46.7%) cervical cancers,25 (78.1%) CINs and 17 (85%) normal cervixes showed IFN-β positive staining in cytoplasm.There was statistically significant difference in the expression rate of IFN-β between cervical cancer and normal cervix (x2=8.378,P<0.05) as well as between cervical cancer and CIN (x2=7.695,P<0.05).HPV16/18 infections could be found in normal cervixs (15%),CINs (68.7%) and cervical cancers (84.4%).There was a correlation between HPV infection and SHP-2 expression in cervical cancer (rs=0.653,P<0.05).SHP-2 may be a useful prognostic and diagnostic indicator for HPV infected cervical cancer.In cervical canccrs,SHP-2 mRNA and protein overexpression was associated with IFN-β lower-expression.
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