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Identification of the small molecule compound which induces hepatic differentiation of human mesenchymal stem cells

机译:鉴定诱导人间充质干细胞肝分化的小分子化合物

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Human mesenchymal stem cells (MSCs) are expected to have utility as a cell source in regenerative medicine. Because we previously reported that suppression of the Wnt/@b-catenin signal enhances hepatic differentiation of human MSCs, we synthesized twenty-three derivatives of small molecule compounds originally reported to suppress the Wnt/@b-catenin signal in human colorectal cancer cells. We then screened these compounds for their ability to induce hepatic differentiation of human UE7T-13 MSCs. After screening using WST assay, TCF reporter assay, and albumin mRNA expression, IC-2, a derivative of ICG-001, was identified as a potent inducer of hepatic differentiation of human MSCs. IC-2 potently induced the expression of albumin, complement C3, tryptophan 2,3-dioxygenase (TDO2), EpCAM, C/EBP@a, glycogen storage, and urea production. Furthermore, we examined the effects of IC-2 on human bone marrow mononuclear cell fractions sorted according to CD90 and CD271 expression. Consequently, CD90^+ CD271^+ cells were found to induce the highest production of urea and glycogen, important hepatocyte functions, in response to IC-2 treatment. CD90^+ CD271^+ cells also highly expressed albumin mRNA. As the CD90^+ CD271^+ population has been reported to contain a rich fraction of MSCs, IC-2 apparently represents a potent inducer of hepatic differentiation of human MSCs.
机译:预期人间充质干细胞(MSC)可用作再生医学中的细胞来源。因为我们以前曾报道过抑制Wnt / @ b-catenin信号会增强人类MSC的肝分化,所以我们合成了23种小分子化合物的衍生物,这些化合物最初被报道抑制人大肠癌细胞中的Wnt / @ b-catenin信号。然后,我们筛选了这些化合物诱导人UE7T-13 MSC肝分化的能力。在使用WST分析,TCF报告基因分析和白蛋白mRNA表达进行筛选后,IC-2-ICG-001的衍生物IC-2被鉴定为人MSC肝分化的有效诱导剂。 IC-2可以有效诱导白蛋白,补体C3,色氨酸2,3-双加氧酶(TDO2),EpCAM,C / EBP @ a,糖原存储和尿素生成的表达。此外,我们检查了IC-2对根据CD90和CD271表达排序的人骨髓单核细胞组分的影响。因此,发现响应于IC-2处理,CD90 ^ + CD271 ^ +细胞诱导最高的尿素和糖原产生,重要的肝细胞功能。 CD90 ^ + CD271 ^ +细胞也高表达白蛋白mRNA。据报道,由于CD90 + CD271 +细胞群中含有丰富的MSC,因此IC-2显然是人类MSC肝分化的有效诱导剂。

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