The cancer marker neutrophil gelatinase-associated lipocalin is highly expressed in human endometrial hyperplasia

Chi Jr Liao, Yen Hua Huang, Heng Kien Au, Le Ming Wang, Sin Tak Chu

研究成果: 雜誌貢獻文章同行評審

16 引文 斯高帕斯(Scopus)


Recently, endometrial hyperplasia was identified as presenting a higher risk for progressing to endometrial carcinoma more readily than adenomyosis. The Lcn-2 gene encodes neutrophil gelatinase-associated lipocalin (NGAL), which promotes cell proliferation and serves as a cancer markerinsome cancers. Inour current study, we investigated the relationship between the expression of NGAL and that of pathogenic cytokines and cancer-related genes including cyclooxygenase-2 (COX-2), E-cadherin, β-catenin, and vimentin in patients with endometrial disorders. NGAL expression was examined by Western blotting, immunohis-tochemistry, and reverse-transcription polymerase chain reaction (RT-PCR) in hyperplasia and adenomyosis biopsy samples. Immunohistochemistry demonstrated the occurrence of NGAL in glandular epithelial cells but not in the stromal cells of hyperplasia biopsy samples. NGAL protein and mRNA expression were significantly greater in endo-metrial hyperplasia than in endometrial adenomyosis. Although our data showed no difference in pathogenic cytokines between patients with endometrial hyperplasia and endometrial adenomyosis, we observed high expression levels of COX-2, β-catenin, vimentin, and E-cadherin in patients with endometrial hyperplasia. NGAL mRNA expression correlated positively with COX-2 and E-cadherin mRNA expression (r = 0.41 and r = 0.57, respectively), but correlated negatively with vimentin and β-catenin mRNA expression (r = -0.42 and r = -0.61, respectively). Our data suggest that NGAL is up-regulated in patients with endometrial hyperplasia to prevent the transition from hyperplasia to carcinoma.

頁(從 - 到)1029-1036
期刊Molecular Biology Reports
出版狀態已發佈 - 2月 2012

ASJC Scopus subject areas

  • 遺傳學
  • 分子生物學


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