{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T21:32:48Z","timestamp":1789421568001,"version":"build-2803163510"},"reference-count":53,"publisher":"American Society for Clinical Investigation","issue":"1","license":[{"start":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:00:00Z","timestamp":1767916800000},"content-version":"vor","delay-in-days":52,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Cure Kids New Zealand","award":["3720979"],"award-info":[{"award-number":["3720979"]}]},{"name":"Maurice Wilkins for Biodiscovery","award":["3716490"],"award-info":[{"award-number":["3716490"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,1,9]]},"abstract":"<jats:p>\n                    Acute rheumatic fever (ARF) and associated rheumatic heart disease are serious sequelae after infection with group A\n                    <jats:italic>Streptococcus<\/jats:italic>\n                    (Strep A). Autoantibodies are thought to contribute to pathogenesis, with deeper exploration of the autoantibody repertoire needed to improve mechanistic understanding and identify new biomarkers. Phage immunoprecipitation sequencing (PhIP-Seq) with the HuScan library (&gt;250,000 overlapping 90-mer peptides spanning the human proteome) was utilized to analyze autoreactivity in sera from children with ARF, uncomplicated Strep A pharyngitis, and matched healthy controls. A global proteome-wide increase in autoantigen reactivity was observed in ARF, as was marked heterogeneity between patients. Public epitopes, common between individuals with ARF were rare, and comprised less than 1% of all enriched peptides. Differential analysis identified both unknown and previously identified ARF autoantigens, including PPP1R12B, a myosin phosphatase complex regulatory subunit expressed in cardiac muscle, and members of the collagen protein family, respectively. Pathway analysis found antigens from the disease-relevant processes encompassing sarcomere and heart morphogenesis were targeted. In sum, PhIP-Seq has substantially expanded the spectrum of autoantigens in ARF, and reveals the rarity of public epitopes in the disease. It provides further support for the role of epitope spreading in pathogenesis and has identified PPP1R12B as an enriched autoantigen.\n                  <\/jats:p>","DOI":"10.1172\/jci.insight.196619","type":"journal-article","created":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T17:00:15Z","timestamp":1763485215000},"source":"Crossref","is-referenced-by-count":6,"title":["PhIP-Seq uncovers marked heterogeneity in acute rheumatic fever autoantibodies"],"prefix":"10.1172","volume":"11","author":[{"given":"Reuben","family":"McGregor","sequence":"first","affiliation":[{"name":"Department of Molecular Medicine, and"},{"name":"Maurice Wilkins Centre for Biodiscovery, The University of Auckland, Auckland, New Zealand."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren H.","family":"Carlton","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, and"},{"name":"Maurice Wilkins Centre for Biodiscovery, The University of Auckland, Auckland, 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