垂体肿瘤转化基因、内皮抑素和碱性成纤维细胞生长因子mRNA在侵袭性垂体腺瘤中的表达

Expression of pituitary tumor transforming gene, endostatin, and basic fibroblast growth factor mRNAs in invasive pituitary adenomas

目的 :探讨垂体腺瘤组织中垂体肿瘤转化基因 (PTTG)、内皮抑素 (endostatin)和碱性成纤维细胞生长因子 (bFGF)在侵袭性垂体腺瘤发生中的作用。方法 :应用逆转录聚合酶链式反应 (RT PCR)技术检测非侵袭性和侵袭性垂体腺瘤组织标本中PTTG ,endostatin和bFGFmRNA的表达水平。结果 :侵袭性腺瘤较非侵袭性腺瘤PTTG和bFGFmRNA表达明显增高 (均P <0 .0 1)。侵袭性腺瘤较非侵袭性腺瘤endostatinmRNA表达明显降低(P <0 .0 1)。结论 :垂体腺瘤侵袭性的发生可能与PTTG和bFGF表达增高及endostatin表达下调有关 。

Objective To investigate the effect of the expression of pituitary tumor transforming gene (PTTG), endostatin and basic fibroblast growth factor (bFGF) in invasive pituitary adenomas.Methods Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the expression of PTTG, endostatin, and bFGF mRNA in invasive and non-invasive pituitary adenomas.Results The expression of PTTG and bFGF significantly increased in the invasive pituitary adenomas(all P <0.01) compared with those in the non-invasive pituitary adenomas. However, the expression of endostatin significantly decreased in the invasive pituitary adenomas compared with the non-invasive pituitary adenomas (P<0.01).Conclusion Increased expression of human PTTG and bFGF, and decreased expression of endostatin may be related to the genesis of tumor invasiveness. The feasible mechanism may be related to that the increased expression of PTTG plays a role in pituitary tumor invasiveness by altering the balance of tumor angiogenesis.