Vitamin D receptor is highly expressed in precancerous lesions and esophageal adenocarcinoma with significant sex difference

Zhongren Zhou, Yinglin Xia, Santhoshi Bandla, Vladislav Zakharov, Shaoping Wu, Jeffery Peters, Tony E. Godfrey, Jun Sun

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Bile acid reflux into the esophagus is important in the development of esophageal adenocarcinoma (EAC). Recently, vitamin D receptor (VDR) was recognized as a bile acid receptor as well as a vitamin receptor. Expression of VDR is reported to influence the development of various types of cancer, such as those of the breast, liver, and colon. However, little is known about the role of VDR in esophageal neoplasms. We investigated the clinicopathological role of VDR in esophageal tumors. We analyzed genomic DNA from 116 EACs for copy number aberrations. The VDR locus was amplified in 7% of EACs. Expression of the VDR protein was also detected by immunohistochemistry from tissue microarrays created from tissues of Barrett esophagus (BE), low-grade (LGD) and high-grade dysplasia (HGD), columnar cell metaplasia (CCM), squamous epithelium (SE), EAC, and esophageal squamous cell carcinoma (ESCC). The protein was highly expressed in 88% of CCM (58/66), 95% of BE (35/37), 100% of the 19 LGD, 94% of HGD (15/16), and 79% of EAC (86/109), but expression in SE and ESCC was rare. Female patients with EAC and CCM were significantly less likely to have high VDR expression than male patients. The overall survival rate was significantly different for patients with tumors exhibiting VDR amplification versus nonamplification. Our findings suggest that VDR plays a role in the early development of EAC through a bile acid ligand. The sex difference in VDR expression may help to explain why men have a high incidence of EAC.

Original languageEnglish (US)
Pages (from-to)1744-1751
Number of pages8
JournalHuman pathology
Volume45
Issue number8
DOIs
StatePublished - Aug 2014

Keywords

  • Amplification
  • Barrett's esophagus
  • Esophageal adenocarcinoma
  • Overexpression
  • Sex difference
  • Vitamin D receptor

Fingerprint Dive into the research topics of 'Vitamin D receptor is highly expressed in precancerous lesions and esophageal adenocarcinoma with significant sex difference'. Together they form a unique fingerprint.

Cite this