A hot new twist to hair biology

Involvement of vanilloid receptor-1 (VR1/TRPV1) signaling in human hair growth control

Eniko Bodó, Tamás Bíró, Andrea Telek, Gabriella Czifra, Zoltán Griger, Balázs I. Tóth, Alessandra Mescalchin, Taisuke Ito, Albrecht Bettermann, László Kovács, Ralf Paus

Research output: Contribution to journalArticle

144 Citations (Scopus)

Abstract

The vanilloid receptor-1 (VR1, or transient receptor potential vanilloid-1 receptor, TRPV1) is activated by capsaicin, the key ingredient of hot peppers. TRPV1 was originally described on sensory neurons as a central integrator of various nociceptive stimuli. However, several human skin cell populations are also now recognized to express TRPV1, but with unknown function. Exploiting the human hair follicle (HF) as a prototypic epithelial-mesenchymal interaction system, we have characterized the HF expression of TRPV1 in situ and have examined TRPV1 signaling in organ-cultured human scalp HF and outer root sheath (ORS) keratinocytes in vitro. TRPV1 immunoreactivity was confined to distinct epithelial compartments of the human HF, mainly to the ORS and hair matrix. In organ culture, TRPV1 activation by capsaicin resulted in a dose-dependent and TRPV1-specific inhibition of hair shaft elongation, suppression of proliferation, induction of apoptosis, premature HF regression (catagen), and up-regulation of intrafollicular transforming growth factor-β2. Cultured human ORS keratinocytes also expressed functional TRPV1, whose stimulation inhibited proliferation, induced apoptosis, elevated intracellular calcium concentration, up-regulated known endogenous hair growth inhibitors (interleukin-1β, transforming growth factor-β2), and down-regulated known hair growth promoters (hepatocyte growth factor, insulin-like growth factor-I, stem cell factor). These findings strongly support TRPV1 as a significant novel player in human hair growth control, underscore the physiological importance of TRPV1 in human skin beyond nociception, and identify TRPV1 as a promising, novel target for pharmacological manipulations of epithelial growth disorders.

Original languageEnglish (US)
Pages (from-to)985-998
Number of pages14
JournalAmerican Journal of Pathology
Volume166
Issue number4
DOIs
StatePublished - Jan 1 2005
Externally publishedYes

Fingerprint

Hair
Growth
Hair Follicle
Capsaicin
Transforming Growth Factors
Keratinocytes
TRPV1 receptor
vanilloid receptor subtype 1
Growth Disorders
Apoptosis
Capsicum
Growth Inhibitors
Skin
Stem Cell Factor
Nociception
Hepatocyte Growth Factor
Organ Culture Techniques
Sensory Receptor Cells
Scalp
Insulin-Like Growth Factor I

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

A hot new twist to hair biology : Involvement of vanilloid receptor-1 (VR1/TRPV1) signaling in human hair growth control. / Bodó, Eniko; Bíró, Tamás; Telek, Andrea; Czifra, Gabriella; Griger, Zoltán; Tóth, Balázs I.; Mescalchin, Alessandra; Ito, Taisuke; Bettermann, Albrecht; Kovács, László; Paus, Ralf.

In: American Journal of Pathology, Vol. 166, No. 4, 01.01.2005, p. 985-998.

Research output: Contribution to journalArticle

Bodó, E, Bíró, T, Telek, A, Czifra, G, Griger, Z, Tóth, BI, Mescalchin, A, Ito, T, Bettermann, A, Kovács, L & Paus, R 2005, 'A hot new twist to hair biology: Involvement of vanilloid receptor-1 (VR1/TRPV1) signaling in human hair growth control', American Journal of Pathology, vol. 166, no. 4, pp. 985-998. https://doi.org/10.1016/S0002-9440(10)62320-6
Bodó, Eniko ; Bíró, Tamás ; Telek, Andrea ; Czifra, Gabriella ; Griger, Zoltán ; Tóth, Balázs I. ; Mescalchin, Alessandra ; Ito, Taisuke ; Bettermann, Albrecht ; Kovács, László ; Paus, Ralf. / A hot new twist to hair biology : Involvement of vanilloid receptor-1 (VR1/TRPV1) signaling in human hair growth control. In: American Journal of Pathology. 2005 ; Vol. 166, No. 4. pp. 985-998.
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