{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T20:56:07Z","timestamp":1790283367428,"version":"4.1.0"},"reference-count":41,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,5,28]],"date-time":"2021-05-28T00:00:00Z","timestamp":1622160000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008530","name":"European Regional Development Fund","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Neuropathology Appl Neurobio"],"published-print":{"date-parts":[[2021,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>Variable degrees of inflammation, necrosis, regeneration and fibrofatty replacement are part of the pathological spectrum of the dystrophic process in alpha dystroglycanopathy LGMDR9 (FKRP\u2010related, OMIM #607155), one of the most prevailing types of LGMDs worldwide. Inflammatory processes and their complex interplay with vascular, myogenic and mesenchymal cells may have a major impact on disease development. The purpose of our study is to describe the specific immune morphological features in muscle tissue of patients with LGMDR9 to enable a better understanding of the phenotype of muscle damage leading to disease progression.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We have analysed skeletal muscle biopsies of 17 patients genetically confirmed as having LGMDR9 by histopathological and molecular techniques.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      We identified CD206\n                      <jats:sup>+<\/jats:sup>\n                      MHC class II\n                      <jats:sup>+<\/jats:sup>\n                      and STAT6\n                      <jats:sup>+<\/jats:sup>\n                      immune\u2010repressed macrophages dominating the endomysial infiltrate in areas of myofibre regeneration and fibrosis. Additionally, PDGFR\u03b2\n                      <jats:sup>+<\/jats:sup>\n                      pericytes were located around MHC class II\n                      <jats:sup>+<\/jats:sup>\n                      activated capillaries residing in close proximity to areas of fibrosis and regenerating fibres. Expression of VEGF was found on many regenerating neonatal myosin\n                      <jats:sup>+<\/jats:sup>\n                      fibres, myofibres and CD206\n                      <jats:sup>+<\/jats:sup>\n                      macrophages also co\u2010expressed VEGF.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Our results show characteristic immune inflammatory features in LGMDR9 and more specifically shed light on the predominant role of macrophages and their function in vascular organisation, fibrosis and myogenesis. Understanding disease\u2010specific immune phenomena potentially inform about possibilities for anti\u2010fibrotic and anti\u2010inflammatory therapeutic strategies, which may complement Ribitol replacement and gene therapies for LGMDR9 that may be available in the future.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/nan.12730","type":"journal-article","created":{"date-parts":[[2021,5,10]],"date-time":"2021-05-10T22:06:25Z","timestamp":1620684385000},"page":"856-866","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Inflammation, fibrosis and skeletal muscle regeneration in LGMDR9 are orchestrated by macrophages"],"prefix":"10.1111","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9629-7053","authenticated-orcid":false,"given":"Heike","family":"K\u00f6lbel","sequence":"first","affiliation":[{"name":"Department of Neuropaediatrics Neuromuscular Centre Universit\u00e4tsmedizin Essen  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