Fgf21 Deficiency Delays Hair Follicle Cycling and Modulates miRNA–Target Gene Interactions in Mice
May 2025
in “
Biology
”
TLDR Lack of Fgf21 slows hair growth by affecting gene interactions.
The study explores the role of Fgf21 in hair follicle cycling and miRNA-target gene interactions using Fgf21 knockout mice. Fgf21 deficiency was found to delay the transition from the telogen to anagen phase in hair follicles, affecting the expression of 93 miRNAs, including miR-134-5p and miR-136-5p, which target Vezf1 and Map3k1, respectively. These miRNAs are involved in key signaling pathways crucial for hair follicle development. The findings suggest that Fgf21 influences hair follicle growth by modulating miRNA expression and target gene interactions, providing insights into potential therapeutic strategies for hair-related disorders.