Author(s): Ezure T, Amano S
Adipocytes were recently shown to secrete adipocytokines, such as adiponectin and leptin, which may have an endocrine role. Subcutaneous adipose tissue lies just beneath the dermis, and dermal condition is correlated with body mass index (BMI). However, it is not clear whether adipocytokines released by adipocytes in subcutaneous adipose tissue influence the adjacent dermis. We found that human dermal fibroblasts express genes encoding receptors for adiponectin and leptin, and that those cytokines both significantly increase production of hyaluronic acid (HA), a major extracellular matrix component (ECM) of dermis, by dermal fibroblasts. This effect is accompanied with up-regulation of HA synthase 2 gene expression. Moreover, adiponectin significantly increases production of collagen, the most abundant component of ECM in dermis, by dermal fibroblasts. These results suggest that subcutaneous adipocytes influence dermal condition by up-regulating collagen and HA production by dermal fibroblasts via secretion of adiponectin and leptin.
Referred From: https://pubmed.ncbi.nlm.nih.gov/18997286/
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