MassIVE MSV000091049

Partial Public PXD039364

Mocetinostat activates Kruppel-like factor 4 and protects against tissue destruction and inflammation in osteoarthritis

Description

Kruppel-like factor-4 (KLF4) is a central transcription factor upregulating regenerative and protective functions in joint tissue cells. To explore novel therapeutic candidates for osteoarthritis (OA), high-throughput screening (HTS) with 11,948 compounds was per-formed using a reporter cell line detecting endogenous KLF4 activation. Eighteen com-pounds were identified through the HTS and confirmed in a secondary screen. Among them, mocetinostat, a class I histone deacetylase inhibitor, had the best biological activi-ties. Mocetinostat upregulated chondrogenic genes in human chondrocytes, meniscal cells, and mesenchymal stem cells, while it down-regulated hypertrophic, inflammatory and cat-abolic genes in those cells and synoviocytes. Intraperitoneal administration of mocetino-stat into mice reduced severity of OA-associated changes in cartilage, meniscus and syno-vium and improved pain behaviors. Global gene expression and proteomics analyses re-vealed that regenerative and protective effects of mocetinostat depended on peroxisome proliferator-activated receptor gamma coactivator 1-alpha. These findings qualify mocetino-stat as a potential candidate for disease modifying OA drugs. [doi:10.25345/C5WH2DQ6S] [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: KLF4 ; osteoarthritis

Contact

Principal Investigators:
(in alphabetical order)
Martin K Lotz, MD, Scripps Research, USA
Submitting User: dmcclat
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