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Abstract Title:

Exosomes derived from human dermal papilla cells promote hair growth in cultured human hair follicles and augment the hair-inductive capacity of cultured dermal papilla spheres.

Abstract Source:

Exp Dermatol. 2019 Mar 29. Epub 2019 Mar 29. PMID: 30924959

Abstract Author(s):

Mi Hee Kwack, Chang Hoon Seo, Prakash Gangadaran, Byeong-Cheol Ahn, Moon Kyu Kim, Jung Chul Kim, Young Kwan Sung

Article Affiliation:

Mi Hee Kwack

Abstract:

Dermal papillae (DP) play key roles in hair growth and regeneration by regulating follicular cell activity. Owing to the established roles of exosomes (Exos) in the regulation of cell functions, we investigated whether DP-derived Exos, especially those from three-dimensional (3D)-cultured DP cells, affect hair growth, cycling, and regeneration. Exos derived from 3D DP (3D DP-Exos) promoted the proliferation of DP cells and outer root sheath (ORS) cells and increased the expression of growth factors (IGF-1, KGF, and HGF) in DP cells. 3D DP-Exo treatment also increased hair shaft elongation in cultured human hair follicles. In addition, local injections of 3D DP-Exos induced anagen from telogen and also prolonged anagen in mice. Moreover, Exo treatment in human DP spheres augmented hair follicle neogenesis when the DP spheres were implanted with mouse epidermal cells. Similar results were obtained using Exos derived from 2D-cultured DP cells (2D DP-Exo). Collectively, our data strongly suggest that Exos derived from DP cells promote hair growth and hair regeneration by regulating the activity of follicular dermal and epidermal cells; accordingly, these findings have implications for the development of therapeutic strategies for hair loss. This article is protected by copyright. All rights reserved.

Study Type : Animal Study, Human In Vitro
Additional Links
Additional Keywords : Exosomes : CK(35) : AC(10)

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