Dermal fibroblasts have been used clinically to promote wound healing and reduce wrinkles. Most of the time, fetal bovine serum (FBS) is for expansion fibroblasts. In addition, chemically defined medium can also be fibroblast expansion. Nonetheless, both FBS are not ideal culture cells that will as has risk pathogen transmission induction xenogeneic immune response whilst extremely expensive. t...

OBJECTIVE Systemic sclerosis (SSc) is characterized by severe and often progressive fibrosis of the skin and multiple internal organs. The mechanisms responsible for these alterations remain obscure, although excessive reactive oxygen species (ROS)-mediated oxidative stress has been implicated. NOX-4 is 1 of 7 isoforms of NADPH oxidase responsible for the generation of ROS. The purpose of this ...

Dermal fibroblasts are transcriptomically heterogeneous. In spite of numerous single-cell RNA sequencing (scRNAseq) studies dedicated to decipher fibroblast heterogeneity, previous approaches lack sufficient insight and do not establish a bridge between mouse human data. We aimed obtain comprehensive map mouseskin from pre-existing To this end, 30 independent scRNAseq datasets (22 including der...

We recently reported that the over-expression of skin fibroblast-derived neutral endopeptidase (NEP) plays a pivotal role in impairing the three-dimensional architecture of dermal elastic fibers during the biological mechanism of ultraviolet (UV)-induced skin wrinkling. In that process, a UVB-associated epithelial-mesenchymal cytokine interaction as well as a direct UVA-induced cellular stimula...

The purpose of this study was to examine regulation of collagen synthesis in human colon fibroblasts and compare the results from colon fibroblasts with those obtained in fibroblasts from human skin. The effects of interleukin-1 beta, tumour necrosis factor alpha, interferon gamma, transforming growth factor-beta, dexamethasone, and the calcium ionophore A23187 were investigated. All compounds ...

Our previous studies strongly indicated that the up-regulated activity of skin fibroblast-derived elastase plays a pivotal role in wrinkling and/or sagging of the skin via the impairment of elastic fiber configuration and the subsequent loss of skin elasticity. Fortunately, we succeeded in identifying human skin fibroblast-derived elastase as a previously known enzyme, neprilysin or neutral end...

BACKGROUND Adipose-derived stem cells (ASCs) are mesenchymal stem cells that have recently been applied to tissue repair and regeneration. Keratinocytes and dermal fibroblasts play key roles in cutaneous wound healing. OBJECTIVE We investigated the paracrine effects of ASCs on HaCaT cells (i.e., immortalized human keratinocytes) and human dermal fibroblasts to explore the mechanism of the eff...

Photoaging mainly occurs due to ultraviolet (UV) radiation, and is accompanied by increased secretion of matrix metalloproteinases (MMPs) degradation collagen. UV radiation induces cell senescence in the skin; however, role senescent cells photoaging remains unclear. Therefore, elucidate photoaging, we evaluated effect senolytics a mouse model investigated underlying mechanism their antiaging e...