Back

Androgen receptor determines skeletal muscle sexual dimorphism

Sakai, H.; Yanagihara, Y.; Tanaka, K.; Tabuchi, A.; Iwamoto, H.; Horita, Y.; Otowa, S.; Kinoshita, T.; Watamori, K.; Hino, K.; Takao, M.; Maire, P.; Tajbakhsh, S.; Kosako, H.; Sawasaki, T.; Yamada, T.; Kano, Y.; Harada, A.; Ohkawa, Y.; Imai, Y.

2026-08-21 molecular biology
10.64898/2026.08.17.745371 bioRxiv
Show abstract

The molecular and functional bases of sexual dimorphism in skeletal muscle remain poorly understood. The androgen receptor (AR) is a major regulator of sex-biased gene expression in muscle, but its genomic targets and associated coregulators in vivo are incompletely defined. Using ChIL-seq and an AirID-AR knock-in mouse, we mapped AR-bound genes and AR-associated proteins in skeletal muscle and identified histone deacetylase-linked corepressors. We further identified myosin binding protein H (Mybph) as a female-biased AR-repressed gene conserved in mouse and human muscle. Mybph loss disrupted sarcomeric organization and selectively delayed postinjury force recovery in female mice. These findings define an in vivo AR regulatory network and identify AR-dependent Mybph repression as a potential mechanism contributing to skeletal muscle sexual dimorphism.

Matching journals

The top 5 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.