Atlas One · Host Biology · Scale 03 — Molecular

IL-31

IL-31 (IL31, chr12q24.31) is a Th2 cytokine signaling via IL-31RA/OSMR → JAK1/JAK2 → STAT3/STAT5; activates sensory neurons driving itch; nemolizumab (anti-IL-31RA) reduced prurigo nodularis itch 71% (OLYMPIA 2) and is approved for AD pruritus.

Also known as: IL-31, interleukin-31, itch cytokine, pruritic cytokine, neuroinflammation cytokine

Scale 03 — MolecularScale
draftStatus
2026-06-07Last Reviewed
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il-31

IL-31

IL-31 (IL31, chr12q24.31) is a Th2 cytokine signaling via IL-31RA/OSMR → JAK1/JAK2 → STAT3/STAT5; activates sensory neurons driving itch; nemolizumab (anti-IL-31RA) reduced prurigo nodularis itch 71% (OLYMPIA 2) and is approved for AD pruritus.