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- W2468883913 abstract "Dimethyl sulfoxide (DMSO) is widely used to induce multilineage differentiation of embryonic and adult progenitor cells. To date, little is known about the mechanisms underlying DMSO-induced mesodermal specification. In this study, we investigated the signaling pathways and lineage-determining genes involved in DMSO-induced mesodermal specification in P19 cells. Effects of 1% DMSO treatment on differentiation, cell cycle, apoptosis and death of P19 cells were evaluated by real-time PCR, immunocytochemistry, flow cytometry and Western blot. Wnt/β-catenin and TGF-β superfamily signaling pathways such as BMP, TGF-β and GDF1 signaling were significantly activated during DMSO-induced mesodermal specification. In contrast, Nodal/Cripto signaling pathway molecules, required for endoderm specification, were severely downregulated. DMSO significantly upregulated the expression of cardiac mesoderm markers but inhibited the expression of endodermal and hematopoietic lineage markers. Among the DMSO-activated cell lineage markers, the expression of Mixl1 and Flk1 was dramatically upregulated at both the transcript and protein levels, and the populations of Mixl1+, Flk1+ and Mixl1+/Flk1+ cells also increased significantly. DMSO modulated cell cycle molecules and induced cell apoptosis, resulting in significant cell death during EB formation of P19 cells. An inhibitor of Flk1, SU5416 significantly blocked expressions of TGF-β superfamily members, mesodermal cell lineage markers and cell cycle molecules but it did not affect Wnt molecules. These results demonstrate that Mixl1 and Flk1 play roles as key downstream or interacting effectors of Wnt/TGF-β signaling pathway during DMSO-induced mesodermal specification in P19 cells." @default.
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- W2468883913 date "2015-07-01" @default.
- W2468883913 modified "2023-09-27" @default.
- W2468883913 title "Mixl1 and Flk1 are key downstream players of activated Wnt/TGF-BETA signaling pathway during dimethyl sulfoxide-induced mesodermal specification in P19 cells" @default.
- W2468883913 doi "https://doi.org/10.1016/j.atherosclerosis.2015.04.338" @default.
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