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Zfp697 is an RNA- binding protein that regulates skeletal muscle inflammation and remodeling
Karolinska Inst, Dept Physiol & Pharmacol, Mol & Cellular Exercise Physiol, Biomedicum, SE-17177 Stockholm, Sweden..
Karolinska Inst, Dept Physiol & Pharmacol, Mol & Cellular Exercise Physiol, Biomedicum, SE-17177 Stockholm, Sweden.;Univ Calif San Diego, Dept Cellular & Mol Med, La Jolla, CA 92093 USA.;Univ Calif San Diego, Sanford Stem Cell Inst Innovat Ctr, Stem Cell Program, La Jolla, CA 92093 USA.;Univ Calif San Diego, Ctr RNA Technol & Therapeut, La Jolla, CA 92093 USA..
Karolinska Inst, Dept Physiol & Pharmacol, Mol & Cellular Exercise Physiol, Biomedicum, SE-17177 Stockholm, Sweden..
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2024 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 121, no 34, article id e2319724121Article in journal (Refereed) Published
Abstract [en]

Skeletal muscle atrophy is a morbidity and mortality risk factor that happens with disuse, chronic disease, and aging. The tissue remodeling that happens during recovery from atrophy or injury involves changes in different cell types such as muscle fibers, and satellite and immune cells. Here, we show that the previously uncharacterized gene and protein Zfp697 is a damage- induced regulator of muscle remodeling. Zfp697/ ZNF697 expression is transiently elevated during recovery from muscle atrophy or injury in mice and humans. Sustained Zfp697 expression in mouse muscle leads to a gene expression signature of chemokine secretion, immune cell recruitment, and extra- cellular matrix remodeling. Notably, although Zfp697 is expressed in several cell types in skeletal muscle, myofiber- specific Zfp697 genetic ablation in mice is sufficient to hinder the inflammatory and regenerative response to muscle injury, compromising functional recovery. We show that Zfp697 is an essential mediator of the interferon gamma response in muscle cells and that it functions primarily as an RNA- interacting protein, with a very high number of miRNA targets. This work identifies Zfp697 as an integrator of cell-cell communication necessary for tissue remodeling and regeneration.

Place, publisher, year, edition, pages
Proceedings of the National Academy of Sciences , 2024. Vol. 121, no 34, article id e2319724121
Keywords [en]
skeletal muscle, Zfp697, muscle atrophy, inflammation, RNA- binding protein
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:kth:diva-357794DOI: 10.1073/pnas.2319724121ISI: 001369092900002PubMedID: 39141348Scopus ID: 2-s2.0-85201774514OAI: oai:DiVA.org:kth-357794DiVA, id: diva2:1924693
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QC 20250120

Available from: 2025-01-07 Created: 2025-01-07 Last updated: 2025-01-20Bibliographically approved

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Edsgärd, DanielEmanuelsson, Olof

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