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RSS FeedsMurine single-cell RNA-seq reveals cell-identity- and tissue-specific trajectories of aging [RESOURCES] (Genome Research)


2 december 2019 21:03:01

Murine single-cell RNA-seq reveals cell-identity- and tissue-specific trajectories of aging [RESOURCES] (Genome Research)

Aging is a pleiotropic process affecting many aspects of mammalian physiology. Mammals are composed of distinct cell type identities and tissue environments, but the influence of these cell identities and environments on the trajectory of aging in individual cells remains unclear. Here, we performed single-cell RNA-seq on >50,000 individual cells across three tissues in young and old mice to allow for direct comparison of aging phenotypes across cell types. We found transcriptional features of aging common across many cell types, as well as features of aging unique to each type. Leveraging matrix factorization and optimal transport methods, we found that both cell identities and tissue environments exert influence on the trajectory and magnitude of aging, with cell identity influence predominating. These results suggest that aging manifests with unique directionality and magnitude across the diverse cell identities in mammals. Digg Facebook Google StumbleUpon Twitter
136 viewsCategory: Bioinformatics, Genetics, Genomics
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