Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Wnt/β-catenin pathway in exosome signaling. Dermal papilla-derived exosomes and keratinocyte-derived exosomes stimulate Wnt to upregulate β-catenin. β-catenin then binds TCF/LEF transcription factors in the nucleus, which promotes hair growth. TCF/LEF indicates T-cell factor/lymphoid enhancer factor; Wnt, wingless-related integration site.
