New discovery provides clues to elucidate the pathogenesis of muscle diseases
A research collaboration based in Kumamoto University, Japan has discovered that muscles and the resident stem cells (satellite cells) responsible for muscle regeneration retain memory of their location in the body. This positional memory was found to be based on the expression pattern of the homeobox (Hox) gene cluster, which is responsible for shaping the body during fetal life. These findings are expected to provide clues to elucidate the pathogenesis of muscle diseases such as muscular dystrophy, in which the position of muscle vulnerability varies depending on the type of muscle, and to help develop regenerative medicine based on positional memory.
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