Mutations in Osteoclast Genes as Causes of Osteoclast-Related Diseases

Osteoclasts, as the only cells capable of resorbing bone, play a significant role in all processes that take place at the level of bone tissue and are involved in the development of the skeleton, maintenance of its integrity, repair, and regeneration of bones. Therefore, it is not surprising that even small deviations from their normal functioning result in diseases that not only affect skeletal system but also the entire organism. There are a number of rare genetic bone diseases associated with mutations in osteoclast genes that govern their differentiation and function. Specifically, they are known as osteoclast-related diseases, and their main hallmark is either decreased or increased bone resorption. To understand the impact of osteoclast gene mutations on the course of these diseases, it is also necessary to know the cellular and molecular mechanisms underlying osteoclast development and function. Moreover, identification of specific gene mutations as potential therapeutic targets would be an important step in creating personalized gene therapies in the future.