Inhibition of PFKFB3 suppresses osteoclastogenesis and prevents ovariectomy-induced bone loss.

ABSTRACT: Osteoclasts are multinucleated cells derived from the monocyte/macrophage cell lineage under the regulation of receptor activator of nuclear factor-κB ligand (RANKL). In previous studies, stimulation by RANKL during osteoclastogenesis was shown to induce a metabolic switch to enhanced glycolytic metabolism. Thus, we hypothesized that blockage of glycolysis might serve as a novel strategy to treat osteoclast-related diseases. In the present study, 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3), an essential regulator of glycolysis, was up-regulated during osteoclast differentiation. Genetic and pharmacological inhibition of PFKFB3 in bone marrow-derived macrophages suppressed the differentiation and function of osteoclasts. Moreover, intraperitoneal administration of the PF

SUBMITTER: Wang J 

PROVIDER: S-EPMC7011148 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature