Physiologically relevant culture medium Plasmax improves human placental trophoblast stem cell function.

Physiologically relevant culture medium Plasmax improves human placental trophoblast stem cell function.
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DOI:
10.1152/ajpcell.00581.2022
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发表时间:
2023-04-01
期刊:
American journal of physiology. Cell physiology
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人类滋养细胞培养为模拟胎盘发育的关键过程提供了强有力的工具。迄今为止,体外滋养细胞研究依赖于含有非生理水平营养物质的商业培养基,这些条件对滋养细胞代谢和功能的影响尚不清楚。本研究表明,与标准培养基(DMEM-F12)相比,具有与人血浆相似的营养物和代谢物浓度的生理培养基(Plasmax)可改善人滋养细胞干细胞(hTSC)的增殖和分化。与dmem - f12培养基相比,在plasmax培养基中培养的hTSCs糖酵解和线粒体代谢也发生了改变,s -腺苷蛋氨酸/ s -腺苷同型半胱氨酸比值降低。这些发现证明了营养环境对培养的人滋养细胞表型的重要性。
Human trophoblast cultures provide powerful tools to model key processes of placental development. In vitro trophoblast studies to date have relied on commercial media that contains nonphysiological levels of nutrients, and the impact of these conditions on trophoblast metabolism and function is unknown. Here, we show that the physiological medium (Plasmax) with nutrient and metabolite concentrations recapitulating human plasma improves human trophoblast stem cell (hTSC) proliferation and differentiation compared with standard medium (DMEM-F12). hTSCs cultured in Plasmax-based medium also show altered glycolytic and mitochondrial metabolism, as well as reduced S-adenosylmethionine/S-adenosyl-homocysteine ratio compared with DMEM-F12-based medium. These findings demonstrate the importance of the nutritional environment for phenotyping cultured human trophoblasts.
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