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Title: Targeting cancer stem cells in solid tumors by vitamin D.

Authors: So, Jae Young; Suh, Nanjoo

Published In J Steroid Biochem Mol Biol, (2015 Apr)

Abstract: Cancer stem cells (CSCs) are a small subset of cells that may be responsible for initiation, progression, and recurrence of tumors. Recent studies have demonstrated that CSCs are highly tumorigenic and resistant to conventional chemotherapies, making them a promising target for the development of preventive/therapeutic agents. A single or combination of various markers, such as CD44, EpCAM, CD49f, CD133, CXCR4, ALDH-1, and CD24, were utilized to isolate CSCs from various types of human cancers. Notch, Hedgehog, Wnt, and TGF-β signalingregulate self-renewal and differentiation of normal stem cells andare aberrantly activated in CSCs. In addition, many studies have demonstrated that these stem cell-associated signaling pathways are required for the maintenance of CSCs in different malignancies, including breast, colorectal, prostate, and pancreatic cancers. Accumulating evidence has shown inhibitory effects of vitamin D and its analogs on the cancer stem cell signaling pathways, suggesting vitamin D as a potential preventive/therapeutic agent against CSCs. In this review, we summarize recent findings about the roles of Notch, Hedgehog, Wnt, and TGF-β signaling in CSCs as well as the effects of vitamin D on these stem cell signaling pathways. This article is part of a Special Issue entitled '17th Vitamin D Workshop'.

PubMed ID: 25460302 Exiting the NIEHS site

MeSH Terms: Animals; Humans; Neoplasms/drug therapy*; Neoplasms/pathology*; Neoplastic Stem Cells/drug effects*; Neoplastic Stem Cells/metabolism; Neoplastic Stem Cells/pathology; Vitamin D/pharmacology*; Vitamins/pharmacology*

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