期刊
BRITISH JOURNAL OF CANCER
卷 92, 期 6, 页码 985-989出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bjc.6602484
关键词
SNAIL; vitamin D; VDR; colon cancer; therapy; E-cadherin
类别
Vitamin D analogues with reduced hypercalcemic activity are under clinical investigation for use against colon cancer and other neoplasias. However, only a subset of patients responds to this therapy, most probably due to loss of vitamin D receptor (VDR) expression during tumour progression. Recent data show that SNAIL transcription factor represses VDR expression, and thus abolishes the antiproliferative and prodifferentiation effects of VDR ligands in cultured cancer cells and their antitumour action in xenografted mice. Accordingly, upregulation of SNAIL in human colon tumours associates with downregulation of VDR. These findings suggest that SNAIL may be associated with loss of responsiveness to vitamin D analogues and may thus be used as an indicator of patients who are unlikely to respond to this therapy.
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