1. Early Developmental Zebrafish Embryo Extract to Modulate Senescence in Multisource Human Mesenchymal Stem Cells.
- Author
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Facchin F, Alviano F, Canaider S, Bianconi E, Rossi M, Bonsi L, Casadei R, Biava PM, and Ventura C
- Subjects
- Animals, Cells, Cultured, Cyclin-Dependent Kinase Inhibitor p21 genetics, Cyclin-Dependent Kinase Inhibitor p21 metabolism, Humans, Mesenchymal Stem Cells cytology, Mesenchymal Stem Cells metabolism, Polycomb Repressive Complex 1 genetics, Polycomb Repressive Complex 1 metabolism, Telomerase genetics, Telomerase metabolism, Tumor Suppressor Protein p53 genetics, Tumor Suppressor Protein p53 metabolism, Zebrafish, Cellular Senescence, Embryo, Nonmammalian chemistry, Mesenchymal Stem Cells drug effects, Tissue Extracts pharmacology
- Abstract
Stem cells undergo senescence both in vivo, contributing to the progressive decline in self-healing mechanisms, and in vitro during prolonged expansion. Here, we show that an early developmental zebrafish embryo extract (ZF1) could act as a modulator of senescence in human mesenchymal stem cells (hMSCs) isolated from both adult tissues, including adipose tissue (hASCs), bone marrow (hBM-MSCs), dental pulp (hDP-MSCs), and a perinatal tissue such as the Wharton's Jelly (hWJ-MSCs). In all the investigated hMSCs, ZF1 decreased senescence-associated β-galactosidase (SA β-gal) activity and enhanced the transcription of TERT , encoding the catalytic telomerase core. In addition, it was associated, only in hASCs, with a transcriptional induction of BMI1 , a pleiotropic repressor of senescence. In hBM-MSCs, hDP-MSCs, and hWJ-MSCs, TERT over-expression was concomitant with a down-regulation of two repressors of TERT , TP53 ( p53 ), and CDKN1A ( p21 ). Furthermore, ZF1 increased the natural ability of hASCs to perform adipogenesis. These results indicate the chance of using ZF1 to modulate stem cell senescence in a source-related manner, to be potentially used as a tool to affect stem cell senescence in vitro. In addition, its anti-senescence action could also set the basis for future in vivo approaches promoting tissue rejuvenation bypassing stem cell transplantation.
- Published
- 2019
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