Abstract:
:The association between osteoarthritis (OA), obesity and metabolic syndrome suggests an interrelation between OA and diabetes mellitus (DM). Little is known about the role of anti-inflammatory cytokine interleukin (IL)-10 in the interrelation between OA and DM. Hence, the effects of IL-10 under hyperglycemia (HG) and hyperinsulinemia (HI) in human articular chondrocytes (hAC) and chondrosarcoma cell line Okayama University Medical School (OUMS)-27 were examined. HAC and OUMS-27, cultured in normoglycemic (NG) and HG conditions were stimulated with insulin and/or IL-10. Cell survival, metabolic activity, proliferation and extracellular matrix (ECM) synthesis were immunocytochemically examined. No significant differences in vitality of hAC neither in pure NG (NGw/o) nor HG (HGw/o) conditions were found. Applying HI and/or IL-10 in both conditions reduced significantly the vitality of hAC but not of OUMS-27. HG impaired significantly hAC metabolism. When combined with HI + IL-10 or IL-10 alone it decreased also significantly hAC proliferation compared to NGw/o. In OUMS-27 it induced only a trend of impaired proliferation compared to NGw/o. hAC but not OUMS-27 reduced significantly their collagen type (col) I, SOX9 and proteoglycan (PG) synthesis in HG combined with HI +/- IL-10 compared to NGw/o. IL-10 could not moderate HI and HG effects. In contrast to hAC OUMS-27 showed limited sensitivity as DM model.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Silawal S,Willauschus M,Schulze-Tanzil G,Gögele C,Geßlein M,Schwarz Sdoi
10.3390/ijms20030768subject
Has Abstractpub_date
2019-02-12 00:00:00issue
3issn
1422-0067pii
ijms20030768journal_volume
20pub_type
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