Effects of Glucocorticoid on Human Dermal Papilla Cells In Vitro

December 2012 in “ The Journal of Steroid Biochemistry and Molecular Biology ”

Soon‐Jin Choi, A‐Ri Cho, Seong Jin Jo, Sungjoo Hwang, Kyu Han Kim, Ohsang Kwon

glucocorticoid dexamethasone human dermal papilla cells hDPCs Ki-67 protein VEGF HGF cyclin D1 cell cycle arrest Dex vascular endothelial growth factor hepatocyte growth factor

Studysummary This study found that dexamethasone treatment reduced cell viability and growth factor expression in human dermal papilla cells, suggesting it inhibits hair growth. Our plain-language summary of this paper — not a Tressless recommendation.

The study investigated the effects of the synthetic glucocorticoid dexamethasone (Dex) on human dermal papilla cells (hDPCs) in vitro, focusing on its impact on cell proliferation and growth factor expression. Dex treatment at a concentration of 1 μM significantly reduced the number of viable hDPCs and downregulated the expression of the Ki-67 protein, as well as growth factors VEGF and HGF. The findings suggested that Dex inhibited hair growth by inducing cell cycle arrest and decreasing cyclin D1 expression, highlighting the potential role of stress-induced glucocorticoids in hair loss.

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