Hydrogen Peroxide-Inducible Clone 5 (Hic-5) as a Potential Therapeutic Target for Vascular and Other Disorders
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Hydrogen peroxide-inducible clone-5 (Hic-5) is a focal adhesion scaffold protein primarily expressed in vascular and visceral smooth muscle cells. We recently generated mice lacking Hic-5, which grew with no apparent abnormality (Kim-Kaneyama J, et al. J Mol Cell Cardiol. 2011;50(1):77-86). However, we discovered that recovery of arterial media following vascular injury is delayed significantly in Hic-5 knockout mice consequent to enhanced apoptosis of cultured vascular smooth muscle cells after mechanical stress; thus, Hic-5 is regarded as a novel factor in vascular remodeling. The Hic-5 gene is also induced by transforming growth factor-β, a well-known accelerator in fibrosis. Hic-5 involvement in various fibrotic disorders, e.g., scar formation, keloid formation and glomerulosclerosis, has been proposed. siRNA silencing of Hic-5 in a breast cancer cell line reduces its invasiveness; moreover, Hic-5 serves as a steroid hormone co-activator and likely participates in endometriosis and prostate cancer. Thus, functional characterization of Hic-5 in various pathophysiological conditions may afford novel mechanistic insights into a wide variety of diseases.
- 一般社団法人 日本動脈硬化学会の論文
一般社団法人 日本動脈硬化学会 | 論文
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