The yin and yang of vitamin D receptor (VDR) signaling in neoplastic progression: operational networks and tissue-specific growth control.
by: F. C. Campbell, Haibo Xu, M. El-Tanani, P. Crowe, V. Bingham
Biochemical pharmacology, Vol. 79, No. 1. (1 January 2010), pp. 1-9.
Substantive evidence implicates vitamin D receptor (VDR) or its natural ligand 1alpha,25-(OH)2 D3 in modulation of tumor growth. However, both human and animal studies indicate tissue-specificity of effect. Epidemiological studies show both inverse and direct relationships between serum 25(OH)D levels and common solid cancers. VDR ablation affects carcinogen-induced tumorigenesis in a tissue-specific manner in model systems.
Better understanding of the tissue-specificity of vitamin D-dependent molecular networks may provide insight into selective growth control by the seco-steroid, 1alpha,25-(OH)2 D3.
This commentary considers complex factors that may influence the cell- or tissue-specificity of 1alpha,25-(OH)2 D3/VDR growth effects, including local synthesis, metabolism and transport of vitamin D and its metabolites, vitamin D receptor (VDR) expression and ligand-interactions, 1alpha,25-(OH)2 D3 genomic and non-genomic actions, Ca2+ flux, kinase activation, VDR interactions with activating and inhibitory vitamin D responsive elements (VDREs) within target gene promoters, VDR coregulator recruitment and differential effects on key downstream growth regulatory genes.
We highlight some differences of VDR growth control relevant to colonic, esophageal, prostate, pancreatic and other cancers and assess the potential for development of selective prevention or treatment strategies.
- - - - - - - - - - - - - - - - - - - -
See also VitaminDWiki
- All items in category Genetics and Vitamin D
344 items - Free vitamin D (VDR) may be more important than total for bladder cancer – March 2013
- Hypothesis – Receptor activation more important than vitamin D levels – June 2011
- Calcium and vitamin D receptors are important to many health conditions – Jan 2013
- Google Search for VitaminDWiki for VDR activtaion 316 hits March 2013
- County with 20 pcnt higher breast cancer rate has 2X more modified vitamin D receptor – July 2012
- Vitamin D receptor activation and Chronic Kidney Disease – Oct 2011
- Vitamin D level can be high, but little benefit: due to kidney, genes, low Magnesium etc.
- Vitamin D receptor polymorphisms are risk factors for various cancers – meta-analysis Jan 2014
Vitamin D Receptor technical details – Jan 20105933 visitors, last modified 14 May, 2014, This page is in the following categories (# of items in each category)