{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T19:42:41Z","timestamp":1769197361268,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,2,9]],"date-time":"2021-02-09T00:00:00Z","timestamp":1612828800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>Osteoarthritis is characterized by cartilage loss resulting from the activation of chondrocytes associated with a synovial inflammation. Activated chondrocytes promote an increased secretion of matrix proteases and proinflammatory cytokines leading to cartilage breakdown. Since natural products possess anti-inflammatory properties, we investigated the direct effect of Rubus idaeus extracts (RIE) in chondrocyte metabolism and cartilage loss. The effect of RIE in chondrocyte metabolism was analyzed in murine primary chondrocytes and cartilage explants. We also assessed the contribution of RIE in an inflammation environment by culturing mice primary chondrocytes with the supernatant of Raw 264.7 macrophage-like cells primed with RIE. In primary chondrocytes, RIE diminished chondrocyte hypertrophy (Col10), while increasing the expression of catabolic genes (Mmp-3, Mmp-13) and reducing anabolic genes (Col2a1, Acan). In cartilage explants, Rubus idaeus prevented the loss of proteoglycan (14.84 \u00b1 3.07% loss of proteoglycans with IL1 alone vs. 3.03 \u00b1 1.86% with IL1 and 100 \u00b5g\/mL of RIE), as well as the NITEGE neoepitope expression. RIE alone reduced the expression of Il1 and Il6 in macrophages, without changes in Tnf and Cox2 expression. The secretome of macrophages pre-treated with RIE and transferred to chondrocytes decreases the gene and protein expression of Mmp-3 and Cox2. In conclusion, these data suggest that RIE may protect from chondrocyte catabolism and cartilage loss in inflammatory conditions. Further evaluations are need before considering RIE as a candidate for the treatment for osteoarthritis.<\/jats:p>","DOI":"10.3390\/biom11020245","type":"journal-article","created":{"date-parts":[[2021,2,9]],"date-time":"2021-02-09T23:43:16Z","timestamp":1612914196000},"page":"245","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Effect of Rubus idaeus Extracts in Murine Chondrocytes and Explants"],"prefix":"10.3390","volume":"11","author":[{"given":"Morgane","family":"Bourmaud","sequence":"first","affiliation":[{"name":"BIOSCAR Inserm U1132, Department of Rheumatology, Universit\u00e9 de Paris, H\u00f4pital Lariboisi\u00e8re, F-75010 Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3179-4432","authenticated-orcid":false,"given":"Mylene","family":"Zarka","sequence":"additional","affiliation":[{"name":"BIOSCAR Inserm U1132, Department of Rheumatology, Universit\u00e9 de Paris, H\u00f4pital Lariboisi\u00e8re, F-75010 Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Romain","family":"Le Cozannet","sequence":"additional","affiliation":[{"name":"Naturex, Part of Givaudan SA, 250 rue Pierre Bayle, 84000 Avignon, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pascale","family":"Fan\u00e7a-Berthon","sequence":"additional","affiliation":[{"name":"Naturex, Part of Givaudan SA, 250 rue Pierre Bayle, 84000 Avignon, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eric","family":"Hay","sequence":"additional","affiliation":[{"name":"BIOSCAR Inserm U1132, Department of Rheumatology, Universit\u00e9 de Paris, H\u00f4pital Lariboisi\u00e8re, F-75010 Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8582-8258","authenticated-orcid":false,"given":"Martine","family":"Cohen-Solal","sequence":"additional","affiliation":[{"name":"BIOSCAR Inserm U1132, Department of Rheumatology, Universit\u00e9 de Paris, H\u00f4pital Lariboisi\u00e8re, F-75010 Paris, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1745","DOI":"10.1016\/S0140-6736(19)30417-9","article-title":"Osteoarthritis","volume":"393","author":"Hunter","year":"2019","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1016\/j.berh.2018.10.007","article-title":"Update on the epidemiology, risk factors and disease outcomes of osteoarthritis","volume":"32","author":"McCabe","year":"2018","journal-title":"Best Pract. 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