Journal
ARCHIVES OF DERMATOLOGICAL RESEARCH
Volume 303, Issue 8, Pages 573-580Publisher
SPRINGER
DOI: 10.1007/s00403-011-1140-1
Keywords
Keloid; Trichostatin A; Transforming growth factor-beta; Apoptosis
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Funding
- National Science Foundation of China [30801190]
- Science and Technology Foundation of Shaanxi province [2010K16-04-02]
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Keloid, a fibro-proliferative benign tumor of skin, is characterized by an enriched milieu of growth factors and an abundant accumulation of extracellular matrix (ECM). Transforming growth factor (TGF)-beta 1 is well known as the crucial fibrogenic cytokine promoting ECM production and tissue fibrosis in keloid forming. Epigenetic modifications have been shown to play a role in the pathogenesis of cancer as well as autoimmune and inflammatory disorders. Recent publication reports epigenetic modifications in keloid fibroblasts that include an altered pattern of DNA methylation and histone acetylation. Therefore, the field of epigenetics may provide a new therapeutic idea for keloid treatment strategies. Currently, there is some evidence from experimental studies that histone deacetylase (HDAC) inhibitor Trichostatin A (TSA) causes abrogation of TGF-beta 1 induced collagen synthesis in skin fibroblasts. Furthermore, TSA could suppress proliferation and induce apoptosis in a broad spectrum of tumor cells both in vitro and in vivo. These findings suggest that TSA could also cause abrogation of TGF-beta 1 induced collagen synthesis and induce apoptosis of proliferating keloid fibroblasts.
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