The yin and yang of vitamin D receptor (VDR) signaling in neoplastic progression: operational networks and tissue-specific growth control.

The yin and yang of vitamin D receptor (VDR) signaling in neoplastic progression: operational networks and tissue-specific growth control.
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DOI:
10.1016/j.bcp.2009.09.005
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发表时间:
2010-01-01
影响因子:
5.8
通讯作者:
Bingham, V.
Bingham, V.
中科院分区:
医学2区
文献类型:
--
作者:
Campbell, F. C.;Xu, Haibo;El-Tanani, M.;Crowe, P.;Bingham, V.

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大量证据表明维生素D受体(VDR)或其天然配体1α,25-(OH)2 D3参与肿瘤生长调节。然而,人类和动物研究都表明了组织特异性的影响。流行病学研究表明血清25(OH)D水平与常见实体癌之间存在直接或负相关关系。在模型系统中,VDR消融以组织特异性的方式影响致癌物诱导的肿瘤发生。更好地了解维生素d依赖分子网络的组织特异性,可能有助于深入了解次级类固醇1α,25-(OH)2 D3的选择性生长控制。本评论考虑了可能影响1α,25-(OH)2 D3/VDR生长效应的细胞或组织特异性的复杂因素,包括局部合成、维生素D及其代谢物的代谢和运输、维生素D受体(VDR)表达和配体相互作用、1α,25-(OH)2 D3基因组和非基因组作用、Ca2+通量、激酶激活、VDR与靶基因启动子内激活和抑制维生素D响应元件(VDREs)的相互作用。VDR共调控因子的募集及其对下游关键生长调控基因的差异影响。我们强调了与结肠、食管癌、前列腺癌、胰腺癌和其他癌症相关的VDR生长控制的一些差异,并评估了选择性预防或治疗策略的发展潜力。
Substantive evidence implicates vitamin D receptor (VDR) or its natural ligand 1α,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, 1α,25-(OH)2 D3. This commentary considers complex factors that may influence the cell- or tissue-specificity of 1α,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, 1α,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.
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