{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T00:06:47Z","timestamp":1789171607409,"version":"build-2803163510"},"reference-count":42,"publisher":"Life Science Alliance, LLC","issue":"4","license":[{"start":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T00:00:00Z","timestamp":1675036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004359","name":"Vetenskapsr\u00e5det","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100018870","name":"Riksf\u00f6rbundet Hj\u00e4rtLung","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100018870","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100014196","name":"Sahlgrenska University Hospitals Research Foundations","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100014196","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["life-science-alliance.org"],"crossmark-restriction":true},"short-container-title":["Life Sci. Alliance"],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:p>\n                    The adult heart develops hypertrophy to reduce ventricular wall stress and maintain cardiac function in response to an increased workload. Although pathological hypertrophy generally progresses to heart failure, physiological hypertrophy may be cardioprotective. Cardiac-specific overexpression of the lipid-droplet protein perilipin 5 (Plin5) promotes cardiac hypertrophy, but it is unclear whether this response is beneficial. We analyzed RNA-sequencing data from human left ventricle and showed that cardiac\n                    <jats:italic>PLIN5<\/jats:italic>\n                    expression correlates with up-regulation of cardiac contraction\u2013related processes. To investigate how elevated cardiac Plin5 levels affect cardiac contractility, we generated mice with cardiac-specific overexpression of\n                    <jats:italic>Plin5<\/jats:italic>\n                    (MHC-\n                    <jats:italic>Plin5<\/jats:italic>\n                    mice). These mice displayed increased left ventricular mass and cardiomyocyte size but preserved heart function. Quantitative proteomics identified sarcoplasmic\/endoplasmic reticulum Ca\n                    <jats:sup>2+<\/jats:sup>\n                    ATPase 2 (SERCA2) as a Plin5-interacting protein. In situ proximity ligation assay further confirmed the Plin5\/SERCA2 interaction. Live imaging showed increases in intracellular Ca\n                    <jats:sup>2+<\/jats:sup>\n                    release during contraction, Ca\n                    <jats:sup>2+<\/jats:sup>\n                    removal during relaxation, and SERCA2 function in MHC-\n                    <jats:italic>Plin5<\/jats:italic>\n                    versus WT cardiomyocytes. These results identify a role of Plin5 in improving cardiac contractility through enhanced Ca\n                    <jats:sup>2+<\/jats:sup>\n                    signaling.\n                  <\/jats:p>","DOI":"10.26508\/lsa.202201690","type":"journal-article","created":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T13:20:33Z","timestamp":1675084833000},"page":"e202201690","update-policy":"https:\/\/doi.org\/10.26508\/lsa.crossmarkpolicy","source":"Crossref","is-referenced-by-count":14,"title":["Cardiac Plin5 interacts with SERCA2 and promotes calcium handling and cardiomyocyte contractility"],"prefix":"10.26508","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8490-4335","authenticated-orcid":true,"given":"Mathieu","family":"Cinato","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01tm6cn81","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Molecular and Clinical Medicine\/Wallenberg Laboratory, Institute of Medicine, Sahlgrenska 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