成人喉乳头状瘤Pin1和CyclinD1的表达及意义

目的：探讨成人喉乳头状瘤中Pin1和Cyclin D1的表达情况、二者之间的相关性及在喉乳头状瘤恶变中的作用。方法：用免疫组织化学方法检测10例喉正常上皮组织、39例喉乳头状瘤、27例喉乳头状瘤伴中重度不典型增生及16例喉乳头状瘤伴癌变共计92例石蜡切片中Pin1和Cyclin D1的表达情况。结果：从正常喉上皮组织到喉乳头状瘤恶变组织的变化过程中,Pin1和Cyclin D1的表达逐渐增高（P〈0.05）;Cyclin D1在喉乳头状瘤组与伴不典型增生组之间表达差异无统计学意义（P〉0.0125）,其余各组间差异均有统计学意义（均P〈0.0125）;Pin1和Cyclin D1的表达具有显著正相关性（P〈0.05）。结论：Pin1和Cyclin D1在喉乳头状瘤恶变过程中发挥重要作用;Pin1过表达上调Cyclin D1过表达,可能是喉乳头状瘤恶变机制之一。

The expression and significance of Pin1 and CyclinD1 in adult papilloma of laryngx

Objective:To study the expression and relationship of Pin1 and CyclinD1 in adult papilloma of larynx,and the effect of both in laryngeal papilloma'S canceration.Method:Ninety-two cases of paraffin section with immunoperoxidase(SP)staining method was used to detect the distribution of Pin1 and CyclinD1 in 10 cases of laryngeal normal epithelial tissue,39 cases of laryngeal papilloma,27 cases of laryngeal papilloma with middle,severe atypical hyperplasia and 16 cases of laryngeal carcinoma.Result:The distribution of Pin1 and CyclinD1 increased gradually from laryngeal normal epithelial tissue tO laryngeal carcinoma(P＜0.05);No difference of the expression of CyclinD1(not including Pin1,for Pin1,P=0.009)was found between laryngeal papilloma and laryngeal papilloma with middle,severe atypical hyperplasia(P＞0.0125),but there had significant difference of the expression of Pin1 and CyclinD1 among the rest groups;There was significantly direct correlation between the expression of Pin1 and CyelinD1(P＜0.05).Conclusion:The hyper-expressions of Pin1 and CyclinD1 may play a key role in laryngea1 papilloma's malignant change.Pin1 up-regulating the expressions of cyclinD1 possibly participate in its malignant change.