Abstract:
:There continues to be a major need for more effective inflammatory bowel disease (IBD) therapies. IL-13Rα2 is a decoy receptor that binds the cytokine IL-13 with high affinity and diminishes its STAT6-mediated effector functions. Previously, we found that IL-13Rα2 was necessary for IBD in mice deficient in the anti-inflammatory cytokine IL-10. Here, we tested for the first time a therapeutic antibody specifically targeting IL-13Rα2. We also used the antibody and Il13ra2-/- mice to dissect the role of IL-13Rα2 in IBD pathogenesis and recovery. Il13ra2-/- mice were modestly protected from induction of dextran sodium sulfate (DSS)-induced colitis. Following a 7-day recovery period, Il13ra2-/- mice or wild-type mice administered the IL-13Rα2-neutralizing antibody had significantly improved colon health compared to control mice. Neutralizing IL-13Rα2 to increase IL-13 bioavailability promoted resolution of IBD even if neutralization occurred only during recovery. To link our observations in mice to a large human cohort, we conducted a phenome-wide association study of a more active variant of IL-13 (R130Q) that has reduced affinity for IL-13Rα2. Human subjects carrying R130Q reported a lower risk for Crohn's disease. Our findings endorse moving anti-IL-13Rα2 into preclinical drug development with the goal of accelerating recovery and maintaining remission in Crohn's disease patients.
journal_name
Mucosal Immunoljournal_title
Mucosal immunologyauthors
Karmele EP,Pasricha TS,Ramalingam TR,Thompson RW,Gieseck RL 3rd,Knilans KJ,Hegen M,Farmer M,Jin F,Kleinman A,Hinds DA,23andMe Research Team.,Almeida Pereira T,de Queiroz Prado R,Bing N,Tchistiakova L,Kasaian MT,Wynn TAdoi
10.1038/s41385-019-0189-6subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1174-1186issue
5eissn
1933-0219issn
1935-3456pii
10.1038/s41385-019-0189-6journal_volume
12pub_type
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