{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T02:18:52Z","timestamp":1793067532897,"version":"4.5.0"},"reference-count":122,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T00:00:00Z","timestamp":1780099200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Research Commission at Heinrich Heine University","award":["9772790"],"award-info":[{"award-number":["9772790"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Osteoporosis (OP) is a highly prevalent age-associated inflammatory bone disease that remains underdiagnosed and undertreated despite its substantial global burden. OP is characterized by impaired osteoblast (OB) function, alterations in the extracellular matrix and chronic, low-grade inflammation associated with aging (\u2018inflammaging\u2019). Initial evidence suggests that the accumulation of senescent cells and their senescence-associated secretory phenotype (SASP) may contribute to disease progression. Additionally, growing evidence indicates a close relationship between osteogenesis and angiogenesis in OP. This study aimed to characterize senescence-associated secretory changes in primary human OBs from donors with OP and to assess their functional impact on endothelial cell behavior. Primary human OBs from donors with OP (n = 15; female: 9, male: 6) and without OP (n = 21; female: 14, male: 7) were analyzed for senescence-associated secretory profiles using ELISA, proteome arrays, and Western blot analysis. The effects of OB-conditioned media on endothelial cell behavior were assessed in endothelial cell migration assays. OBs from donors with OP showed a tendency toward increased senescence-associated features in the \u03b2-galactosidase assay, alongside an altered secretory phenotype characterized by increased IL-6, reduced IL-8 and angiogenin levels and decreased expression of extracellular matrix-associated proteins, such as osteopontin, osteonectin, progranulin and thrombospondin-1. Conditioned media from OBs from donors with OP significantly enhanced endothelial cell migration and proliferation in vitro. These findings suggest that OBs from donors with OP exhibit a SASP that may alter the angiogenic microenvironment in the bone.<\/jats:p>","DOI":"10.3390\/biology15110858","type":"journal-article","created":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T01:08:02Z","timestamp":1780535282000},"page":"858","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Altered Senescence-Associated Secretory Phenotype of Human Osteoblasts from Patients with Osteoporosis Enhances Endothelial Cell Migration and Proliferation In Vitro"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6043-4308","authenticated-orcid":false,"given":"Lisa","family":"Oezel","sequence":"first","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-3740-1187","authenticated-orcid":false,"given":"Niklas M.","family":"Wergen","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Zimmermann","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simeon","family":"Popov","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beyza","family":"G\u00fcrsoy","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan Peter","family":"Grassmann","sequence":"additional","affiliation":[{"name":"Department of Trauma, Hand- and Reconstructive Surgery, Klinikum Osnabr\u00fcck, 49076 Osnabr\u00fcck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nele","family":"Ben\u00f6lken","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Till","family":"Kuebart","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Trauma Surgery, Medical Faculty and University Hospital D\u00fcsseldorf, Heinrich Heine University, 40225 D\u00fcsseldorf, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernd","family":"Bittersohl","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Klinikum Bielefeld\u2013Mitte, Medical School and University Medical Center OWL, Bielefeld University, 33604 Bielefeld, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vera","family":"Grotheer","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Klinikum Bielefeld\u2013Mitte, Medical School and University Medical Center OWL, Bielefeld University, 33604 Bielefeld, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,30]]},"reference":[{"key":"ref_1","unstructured":"Kanis, J.A. 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