alexa Leukemia inhibitory factor inhibits T helper 17 cell differentiation and confers treatment effects of neural progenitor cell therapy in autoimmune disease.
Haematology

Haematology

Journal of Blood & Lymph

Author(s): Cao W, Yang Y, Wang Z, Liu A, Fang L,

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Abstract Neural progenitor cell (NPC) therapy is considered a promising treatment modality for multiple sclerosis (MS), potentially acting through neural repair. Here, we showed that intravenous administration of NPCs ameliorated experimental autoimmune encephalomyelitis (EAE) by selectively inhibiting pathogenic T helper 17 (Th17) cell differentiation. Leukemia inhibitory factor (LIF) produced by NPCs was responsible for the observed EAE suppression. Through the inducible LIF receptor expression, LIF inhibited the differentiation of Th17 cells in EAE mice and that from MS subjects. At the molecular level, LIF exerted an opposing effect on interleukin 6 (IL-6)-induced signal transducer and activator of transcription 3 (STAT3) phosphorylation required for Th17 cell differentiation by triggering a signaling cascade that activated extracellular signal-regulated MAP kinase (ERK) and upregulated suppressor of cytokine signaling 3 (SOCS3) expression. This study reveals a critical role for LIF in regulating Th17 cell differentiation and provides insights into the mechanisms of action of NPC therapy in MS. Copyright © 2011 Elsevier Inc. All rights reserved. This article was published in Immunity and referenced in Journal of Blood & Lymph

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