Why the study?
Does myeloid IL4Rα signaling regulate inflammation and fibrotic remodeling post-myocardial infarction?
Does myeloid IL4Rα signaling regulate inflammation and fibrotic remodeling post-myocardial infarction?
Myeloid-specific IL4Rα signaling is essential for post-MI healing and represents a potential therapeutic target to modify cardiac remodeling.
Hypothesis-generating for myeloid IL4Rα activation post-MI; leaves open therapeutic translation to patients.
This study showed, for the first time, the role of endogenous IL4Rα signaling in myeloid cells during cardiac remodeling and the underlying mechanisms. We identified myeloid cells are the critical target cell types of IL4Rα signaling during cardiac remodeling post-MI. Deficiency of myeloid IL4Rα signaling causes deteriorated cardiac function post-MI, due to dysregulated inflammation and insufficient fibrotic remodeling. This study sheds light on the potential of activating myeloid-specific IL4Rα signaling to modify remodeling post-MI. This brings hope to patients with MI and diminishes side effects by cell type-specific instead of whole body treatment.
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Song et al. (2020) studied this question.
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