Enrichment of stem cell-derived pancreatic beta-like cells and controlled graft size through pharmacological removal of proliferating cells.

Enrichment of stem cell-derived pancreatic beta-like cells and controlled graft size through pharmacological removal of proliferating cells.
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DOI:
10.1016/j.stemcr.2023.05.010
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发表时间:
2023-06-13
期刊:
影响因子:
5.9
通讯作者:
Russ, Holger A.
Russ, Holger A.
中科院分区:
医学1区
文献类型:
--
作者:
Shilleh, Ali H.;Beard, Scott;Russ, Holger A.

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将有限的人身体胰岛移植到1型糖尿病患者体内,可以使∼获得35个月的胰岛素独立。干细胞来源的产生胰岛素的β-样细胞(SBCs)的直接分化可以在动物模型中逆转糖尿病,有效地消除了这一短缺限制,但不受控制的移植物生长仍然是一个令人担忧的问题。目前的方案不能产生纯的SBCs,而是只有20%-50%的胰岛素表达细胞,并存在其他类型的细胞,其中一些是增殖的。在这里,我们展示了在体外通过简单的药物治疗选择性地消融SOX9标记的增殖细胞。这一处理同时使SBCS的∼增加了1.7%。经处理的SBC簇在体外显示出改善的功能,在体内移植控制移植物的大小。总体而言,我们的研究提供了一种方便有效的方法来丰富SBCs,同时最大限度地减少不需要的增殖细胞的存在,因此对当前的细胞治疗方法具有重要意义。SBC簇含有增殖的SOX9+胰祖细胞SBC簇的药物治疗去除复制细胞治疗丰富了显示出改善功能的SBCs在本文中,Russ和他的同事展示了干细胞衍生的β细胞(SBC)簇的简单药物治疗可以去除增殖的非靶细胞,在体外改善SBC的功能,并在体内控制SBC移植物的大小。
Transplantation of limited human cadaveric islets into type 1 diabetic patients results in ∼35 months of insulin independence. Direct differentiation of stem cell-derived insulin-producing beta-like cells (sBCs) that can reverse diabetes in animal models effectively removes this shortage constraint, but uncontrolled graft growth remains a concern. Current protocols do not generate pure sBCs, but consist of only 20%–50% insulin-expressing cells with additional cell types present, some of which are proliferative. Here, we show the selective ablation of proliferative cells marked by SOX9 by simple pharmacological treatment in vitro. This treatment concomitantly enriches for sBCs by ∼1.7-fold. Treated sBC clusters show improved function in vitro and in vivo transplantation controls graft size. Overall, our study provides a convenient and effective approach to enrich for sBCs while minimizing the presence of unwanted proliferative cells and thus has important implications for current cell therapy approaches. sBC clusters contain proliferative SOX9+ pancreatic progenitor cells Pharmacologic treatment of sBC clusters ablates replicating cells Treatment enriches for sBCs that display improved function In this article, Russ and colleagues show that simple pharmacological treatment of stem cell-derived beta cell (sBC) clusters removes proliferative off target cells, improves function of sBC in vitro, and controls sBC grafts size in vivo.
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