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- Title
HK2: a potential regulator of osteoarthritis via glycolytic and non-glycolytic pathways.
- Authors
Bao, Chuncha; Zhu, Siyi; Song, Kangping; He, Chengqi
- Abstract
Osteoarthritis (OA) is an age-related chronic degenerative joint disease where the main characteristics include progressive degeneration of cartilage, varying degrees of synovitis, and periarticular osteogenesis. However, the underlying factors involved in OA pathogenesis remain elusive which has resulted in poor clinical treatment effect. Recently, glucose metabolism changes provide a new perspective on the pathogenesis of OA. Under the stimulation of external environment, the metabolic pathway of chondrocytes tends to change from oxidative phosphorylation (OXPHOS) to aerobic glycolysis. Previous studies have demonstrated that glycolysis of synovial tissue is increased in OA. The hexokinase (HK) is the first rate limiting enzyme in aerobic glycolysis, participating and catalyzing the main pathway of glucose utilization. An isoform of HKs, HK2 is considered to be a key regulator of glucose metabolism, promotes the transformation of glycolysis from OXPHOS to aerobic glycolysis. Moreover, the expression level of HK2 in OA synovial tissue (FLS) was higher than that in control group, which indicated the potential therapeutic effect of HK2 in OA. However, there is no summary to help us understand the potential therapeutic role of glucose metabolism in OA. Therefore, this review focuses on the properties of HK2 and existing research concerning HK2 and OA. We also highlight the potential role and mechanism of HK2 in OA. 5LN8vguHsF92XGAvwRs245 Video abstract
- Subjects
GLYCOLYSIS; OSTEOARTHRITIS; GLUCOSE metabolism; OXIDATIVE phosphorylation; GLUCOKINASE
- Publication
Cell Communication & Signaling, 2022, Vol 20, Issue 1, p1
- ISSN
1478-811X
- Publication type
Article
- DOI
10.1186/s12964-022-00943-y