Regulation of insulin-like growth factor (IGF) II and IGF binding protein 3 autocrine loop in human PC-3 prostate cancer cells by vitamin D metabolite 1,25(OH)2D3 and its analog EB1089.

Huynh,H; Pollak,M; Zhang,J C

doi:10.3892/ijo.13.1.137

Jul 1998 Volume 13 Issue 1

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Jul 1998 Volume 13 Issue 1

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Article

Regulation of insulin-like growth factor (IGF) II and IGF binding protein 3 autocrine loop in human PC-3 prostate cancer cells by vitamin D metabolite 1,25(OH)2D3 and its analog EB1089.

Authors:
- H Huynh
- M Pollak
- J C Zhang
View Affiliations / Copyright

Affiliations: Lady Davis Research Institute of the Jewish General Hospital and Departments of Medicine, McGill University, Montreal, Quebec H3T 1E2, Canada.
Pages: 137-180
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Published online on: July 1, 1998

https://doi.org/10.3892/ijo.13.1.137
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Abstract

Prostate cancer and benign prostate hyperplasia (BPH) are major public health problems. Prostate epithelial cell proliferation is regulated by insulin-like growth factor I (IGF-I) which is mitogenic and anti-apoptotic, and IGF binding protein 3 (IGFBP-3) which is an apoptotic agent in these cells. We demonstrate that the 1,25(OH)2D3 and its analog EB1089-induced growth inhibition was associated with increased IGFBP-3 mRNA abundance, IGFBP-3 mRNA stability, IGFBP-3 protein accumulation, and decreased IGF-II gene expression. Anti-IGF-II antibody and exogenous recombinant human IGFBP-3 inhibit PC-3 cell proliferation. The results document the inhibitory effects of 1,25(OH)2D3 and EB1089 on the IGF system of mitogens in prostate cancer cells, and suggest a potential therapeutic use of EB1089 in treatment of BPH and prostate cancer.

Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Regulation of insulin-like growth factor (IGF) II and IGF binding protein 3 autocrine loop in human PC-3 prostate cancer cells by vitamin D metabolite 1,25(OH)2D3 and its analog EB1089.

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Abstract

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