What is the role of tamoxifen in the treatment of keloids and hypertrophic scars?

Updated: May 29, 2020
  • Author: Brian Berman, MD, PhD; Chief Editor: Dirk M Elston, MD  more...
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Tamoxifen, a synthetic nonsteroidal antiestrogen used to treat breast cancer, has been shown to inhibit proliferation of keloid fibroblasts and their collagen synthesis in monolayer cultures. Hu et al demonstrated that tamoxifen exhibits a dose-dependent and reversible inhibition of contraction of adult human dermal fibroblast in vitro. [56]

Tamoxifen has also been shown to reduce TGF-alpha, and its isoform TGF-alpha1, production by keloid fibroblasts in vitro. Mikulec et al have shown that keloid fibroblasts have significantly lower TGF-alpha1 production when exposed to 16 µmol/L of tamoxifen at day 2 of culture when compared with control keloid fibroblasts (P = .05). [57]

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