Активизированный сывороточный альбом с интерлейкин-33 подавляет экспериментальный аутоиммунный энцефаломиэлит.
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Budina Erica, Reda Joseph W, Cao Shijie, Watkins Elyse A, Solanki Ani, Nguyen Mindy, Ang Phillip S, Gómez Medellín J Emiliano, Chun Hye-Rin, Foley Colleen R, Berg Brendan T K, Shim Ha-Na, Hultgren Kevin, Khosravi Zahra, Dhar Arjun, Gomes Suzana, Tremain Andrew C, Ishihara Ako, Ishihara Jun, Hubbell Jeffrey A
Аннотация
Оригинал публикации
Activity-attenuated serum albumin-fused interleukin-33 suppresses experimental autoimmune encephalomyelitis.
Interleukin-33 (IL-33) is an immunoregulatory cytokine that moderately suppresses experimental autoimmune encephalomyelitis (EAE), a murine model of multiple sclerosis (MS). However, poor pharmacokinetics and toxicity hinder its clinical translation. To address these limitations, we develop an activity-attenuated IL-33 by recombinant fusion to serum albumin (SA). SA-IL-33 exhibits reduced toxicity and prolonged residence in the secondary lymphoid organs (SLOs), sites of T cell priming in autoimmunity, compared to wild-type (WT) IL-33. Prophylactic SA-IL-33 administration prevents EAE with superior efficacy to WT IL-33 and comparable efficacy to fingolimod (FTY720), a Food and Drug Administration (FDA)-approved MS drug. Therapeutic SA-IL-33 treatment also reduces disease severity in both chronic and relapsing-remitting EAE. SA-IL-33 modulates immunity in EAE by suppressing CD45+ cell infiltration (including myelin-reactive T helper 17 [TH17] cells) in the spinal cord, while expanding type 2 immune cells (including type 2 innate lymphoid cells [ILC2s], ST2+ regulatory T cells [Tregs], T helper 2 [TH2] cells, and M2-polarized macrophages) in the SLOs. These findings suggest that SA-IL-33 is a promising therapeutic for neuroinflammatory diseases.