JAK1 Inhibitor

**Semantic type:** Chemical Viewed Functionally

**Definition:** Any substance that inhibits the biological action of tyrosine-protein kinase JAK1, an enzyme that plays a key role in certain types of cancer and cytokine signaling.

**Synonyms:** - Janus Kinase 1 Inhibitor - Tyrosine-Protein Kinase JAK1 Inhibitor