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Did you mean JAK1 Inhibitor?

GlossaryJAK inhibitor

blocks enzymes involved in immune response and inflammation

A JAK inhibitor, also known as a Janus kinase inhibitor or JAKi, is a type of medication that blocks the activity of Janus kinase enzymes. These enzymes play a crucial role in the signaling pathways that regulate immune responses and inflammation. By inhibiting these enzymes, JAK inhibitors can help manage autoimmune diseases and conditions like alopecia areata, where the immune system mistakenly attacks hair follicles.

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research Scarring Hair Follicle Destruction Is Driven by the Collapse of EGFR-Protected JAK-STAT1-Sensitive Stem Cell Immune Privilege

October 2023 in “bioRxiv (Cold Spring Harbor Laboratory)”

A protein called EGFR protects hair follicle stem cells, and when it's disrupted, hair follicles can be damaged, but blocking certain pathways can restore hair growth.