Autologous Platelet-Rich Plasma: A Potential Therapeutic Tool for Promoting Hair Growth

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Written by

ZHENG JUN LI, MS,*‡ HYE-IN CHOI, MS,†‡ DAE-KYOUNG CHOI, PHD,* KYUNG-CHEOL SOHN, PHD,* MYUNG IM, MD,* YOUNG-JOON SEO, MD,* YOUNG-HO LEE, MD,† JEUNG-HOON LEE, MD,* AND YOUNG LEE, MD*


BACKGROUND Recently, autologous platelet-rich plasma (PRP) has attracted attention in various medical fields, including plastic and orthopedic surgery and dermatology, for its ability to promote wound healing. PRP has been tested during facelift and hair transplantation to reduce swelling and pain and to increase hair density.

OBJECTIVE To investigate the effects of PRP on hair growth using in vivo and in vitro models.

METHODS PRP was prepared using the double-spin method and applied to dermal papilla (DP) cells. The proliferative effect of activated PRP on DP cells was measured. To understand the mechanisms of activated PRP on hair growth, we evaluated signaling pathways. In an in vivo study, mice received subcutaneous injections of activated PRP, and their results were compared with control mice.

RESULTS Activated PRP increased the proliferation of DP cells and stimulated extracellular signal-regulated kinase (ERK) and Akt signaling. Fibroblast growth factor 7 (FGF-7) and beta-catenin, which are potent stimuli for hair growth, were upregulated in DP cells. The injection of mice with activated PRP induced faster telogen-to-anagen transition than was seen on control mice.

CONCLUSIONS Although few studies tested the effects of activated PRP on hair growth, this research provides support for possible clinical application of autologous PRP and its secretory factors for promotion of hair growth.

The authors have indicated no significant interest with commercial supporters.


Autologous Platelet-Rich Plasma: A Potential Therapeutic Tool for Promoting Hair Growth

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