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Single-cell Multiomic analysis of cellular and epigenetic dynamics in EDMD

Laminopathies are a large group of human degenerative disease, of which the most common involve heart and muscles. Despite varying in terms of symptoms these disorders are caused by defects in two closely related protein called Lamin A and C that are normally associated with nuclear membrane of cells. How the loss of these proteins leads to the development of muscular degeneration or affects the heart is not completely understood. It is known however that affected cells display different degrees of abnormalities in their nuclear shape. Overall, destabilization of nuclear membrane could impact how DNA is packed and accessed which, in turn, influences which genes are expressed. These proteins are found in most cell types in the human body and so, in principle, each of these cell types could be impacted. Here we focus on their potential role in muscle loss and on how the mutual interaction of different cell types are altered in this context. To do so we propose to use a new strategy that combines different layers of information: gene expression, imaging and DNA accessibility and is capable of study all the different cell type simultaneously. This new approach will enable us to and correlate the different nuclear abnormalities with their potential correlation with gene expression to better understand the steps that leads from the genetic mutation to the outcome of the disease.
Digital Object Identifier (DOI)
Grantee: Lorenzo Giordani, PhD
Grant type: Research Grant
Award total: $299,573.00
Institution: Sorbonne Université-Inserm UMRS974
Country: France