Janus kinases (JAKs) are intracellular signaling enzymes that act downstream of key proinflammatory cytokines to mediate normal immune function and modulate inflammation.2
The JAK family consists of JAK1, JAK2, JAK3, and TYK2, which activate signal transducer and activator of transcription (STAT) proteins that promote gene transcription.2
JAK/STAT signaling is involved in various inflammatory and autoimmune skin diseases.2,3
References: 1. Fay B, et al. Ann Rheum Dis. 2019;78:221-222. 2. Howell MD, et al. Front Immunol. 2019;10:2342. 3. Szilveszter KP, et al. Front Immunol. 2019;10:1862.

