Hair follicle stem cells (HFSCs) utilize glycolytic metabolism during their activation and anagen induction. However, the role of pyruvate kinase M2 (PKM2), which catalyzes the final step of glycolysis, in hair regeneration has not been elucidated. In this study, we investigated the expression pattern and activity of PKM2 during the depilation-induced anagen progression in mice. We found that TEPP-46, a selective activator of PKM2, enhanced hair re-growth and proliferation of HFSCs. PKM2 expression was increased via up-regulation of Wnt/β-catenin signaling, which is involved in hair regeneration. Moreover, a combined treatment with KY19382, a small molecule that activates Wnt/β-catenin signaling, and TEPP-46 significantly enhanced hair re-growth and wound-induced hair follicle neogenesis (WIHN). These results indicate that simultaneous activation of the PKM2 and Wnt/β-catenin signaling could be a potential strategy for treating alopecia patients.
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (NRF) and a grant funded by the Korean government (MSIP) (2019R1A2C3002751, 2020M3E5E2040018). Y.C. RYU was supported by the Brain Korea 21 (BK21) Plus studentship from the NRF.
© 2022 by the authors.
All Science Journal Classification (ASJC) codes
- Pharmaceutical Science