Background: Osteoclasts are bone-resorbing multinuclear polykaryons essential for bone remodeling. formed through cell fusion of mononuclear macrophage/monocyte lineage precursor cells upon stimulation by the RANK/RANKL system. Recent studies have revealed that a family of tetraspanin proteins. such as CD9. https://www.roomyroomers.shop/product-category/wood-stool/