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Vitamin D analogs in cutaneous malignancies.

Abstract
In this article are reviewed available experimental and clinical studies and vitamin D analogs, and molecular and cellular mechanisms of their antineoplastic activity. In more detail are discussed the antiproliferative and pro-differentiative effects, inhibition of tumor-induced angiogenesis and induction of apoptosis. The use of vitamin D analogs is however hampered by their toxicity. In various experimental systems it was shown that the activities of vitamin D analogs can be enhanced by combined application with retinoids or other biological active compounds such as cytokines and growth factors. Retinoids and vitamin D analogs were found to have synergistic inhibitory effects on tumor cell proliferation and angiogenic capability, and both agents applied simultaneously are efficacious in small doses. Thus combined therapy could find application in clinical practice. There are up to now only very limited data on the treatment of cutaneous malignancies with vitamin D analogs and it appears that a combined therapy, preferably with retinoids, could be more beneficial. The new synthetic, more potent and less calcemic analogs might find wide application in chemotherapy of premalignant and early malignant cutaneous tumors and could be especially useful for chemoprevention in the high-risk groups, e.g., xeroderma pigmentosum, organ transplant recipients, arsenical keratoses and others.
AuthorsS Majewski, A Kutner, S Jabłonska
JournalCurrent pharmaceutical design (Curr Pharm Des) Vol. 6 Issue 7 Pg. 829-38 (May 2000) ISSN: 1381-6128 [Print] United Arab Emirates
PMID10928819 (Publication Type: Journal Article, Review)
Chemical References
  • Cholecalciferol
Topics
  • Animals
  • Apoptosis (drug effects)
  • Cell Differentiation (drug effects)
  • Cell Division (drug effects)
  • Cholecalciferol (analogs & derivatives, therapeutic use)
  • Humans
  • Neoplasm Invasiveness
  • Neovascularization, Pathologic (prevention & control)
  • Skin Neoplasms (drug therapy)

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