垂体腺瘤中黏蛋白1的表达与肿瘤侵袭性的关系

Relationship between expression of mucin1 and tumor invasion in pituitary adenomas

目的 探讨垂体腺瘤中黏蛋白1（MUC1）的表达与肿瘤侵袭性的关系.方法 采用免疫组织化学法检测26例侵袭性垂体腺瘤和29例非侵袭性垂体腺瘤患者肿瘤组织中MUC1的表达.结果 侵袭性垂体腺瘤组织中MUC1高表达,阳性率为76.92％（20/26）;非侵袭性垂体腺瘤组织中MUC1为弱阳性表达或不表达,阳性率为27.57％（8/29）,两者差异有统计学意义（x2=13.35,P＜ 0.01）.功能性垂体腺瘤组织中MUC1阳性率为44.82％（13/35）,非功能垂体腺瘤中MUC1阳性表达率为75.00％（15/20）,两者差异无统计学意义（x2=6.13,P＞ 0.01）.结论 MUC1在侵袭性垂体腺瘤组织中的表达及分布特点可作为垂体腺瘤侵袭性的辅助鉴别诊断指标,有可能作为垂体腺瘤免疫治疗的靶抗原.

Objective To investigate the relationship between expression of mucin1 （MUC1） and tumor invasion in pituitary adenomas.Methods The expression of MUC1 was detected by immunohistochemical analysis in 26 tissues of invasive pituitary adenoma and 29 of non-invasive pituitary adenoma.Results The expression of MUC1 in invasive pituitary adenomas tissues was 76.92 % （20/26）.It was weakly positive or negative in non-invasive pituitary adenoma tissues,and the positive rate was 27.57 % （8/29）.There was significant difference in two groups （x2 =13.35,P 〈 0.01）.The expression of MUC1 in functional pituitary adenomas was 44.82 % （13/35） and was 75.00 % （15/20） in non-functional pituitary adenomas.There were no significant difference in two groups （x2 =6.13,P 〉 0.01）.Conclusions Over-expression and aberrant localization of MUC1 in invasive pituitary adenoma may act as distinguishing diagnostic markers of invasive pituitary adenoma.MUC1 might be as the target of immunotherapy of invasive pituitary adenoma.