Project description:The present study demonstrated that pim1-promoted mito-Ca2+ influx enhanced the activity of mitochondrial OXPHOS, bringing about the differentiation of Th17 and driving the pathogenic progression of inflammatory arthritis. Targeting pim1 impeded Th17 differentiation and alleviated collagen-induced arthritis (CIA) and SKG arthritis, suggesting that Pim1 is a target for the treatment of inflammatory arthritis.