Testosterone increased both mTOR phosphorylation and its downstream targets S6K1 and 4E-BP1, effects blocked by rapamycin and mTOR siRNA. The hormone increased both ERK1/2 and Akt phosphorylation.
1. Carla Basualto-Alarcón, Gonzalo Jorquera, Enrique Jaimovich, and Manuel Estrada.Testosterone induces skeletal muscle hypertrophy via Akt/mTOR/S6K1 pathway and the androgen receptor.FASEB. 26( 1); 2012
2. Carlo Serra Nicolae Lucian Sandor Hyeran Jang Daniel Lee Gianluca Toraldo Tyler Guarneri Siu Wong Anqi Zhang Wen Guo Ravi Jasuja Shalender Bhasin.The Effects of Testosterone Deprivation and Supplementation on Proteasomal and Autophagy Activity in the Skeletal Muscle of the Male Mouse: Differential Effects on High-Androgen Responder and Low-Androgen Responder Muscle Groups .Endocrinology, Volume 154, Issue 12, 1 December 2013, Pages 4594–4606,
3. WU Y, CHHIPA RR, CHENG J, ZHANG H, MOHLER JL, CLEMENT I. Androgen Receptor-mTOR Crosstalk is Regulated by Testosterone Availability: Implication for Prostate Cancer Cell Survival. Anticancer research. 2010;30(10):3895-3901.
4. White JP, Gao S, Puppa MJ, Sato S, Welle SL, Carson JA. Testosterone regulation of Akt/mTORC1/FoxO3a Signaling in Skeletal Muscle. Molecular and cellular endocrinology. 2013;365(2):174-186.