Dermal Fibroblast CCN1 Expression in Mice Recapitulates Human Skin Dermal Aging

The aging process deleteriously alters the structure and function of dermal collagen. These alterations result in thinning, fragility, wrinkles, laxity, impaired wound healing, and a microenvironment conducive to cancer. However, the key factors responsible for these changes have not been fully elucidated and relevant models for the study of skin aging progression are lacking. CCN1, a secreted extracellular matrix (ECM) associated matricellular protein, is elevated in dermal fibroblasts in aged human skin.

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