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首页> 外文期刊>Journal of cellular physiology. >Generation of hematopoietic cells from mouse pluripotent stem cells in a 3D culture system of self-assembling peptide hydrogel
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Generation of hematopoietic cells from mouse pluripotent stem cells in a 3D culture system of self-assembling peptide hydrogel

机译:一代小鼠的造血细胞多能干细胞的3 d文化系统自组装多肽水凝胶

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摘要

In vitro generation of hematopoietic stem cells from pluripotent stem cells (PSCs) can be regarded as novel therapeutic approaches for replacing bone marrow transplantation without immune rejection or graft versus host disease. To date, many different approaches have been evaluated in terms of directing PSCs toward different hematopoietic cell types, yet, low efficiency and no function restrict the further hematopoietic differentiation study, our research aims to develop a three dimension (3D) hematopoietic differentiation approach that serves as recapitulation of embryonic development in vitro to a degree of complexity not achievable in a two dimension culture system. We first found that mouse PSCs could be efficiently induced to hematopoietic differentiation with an expression of hematopoietic makers, such as c-kit, CD41, and CD45 within self-assembling peptide hydrogel. Colony-forming cells assay results suggested mouse PSCs (mPSCs) could be differentiated into multipotential progenitor cells and 3D induction system derived hematopoietic colonies owned potential of differentiating into lymphocyte cells. In addition, in vivo animal transplantation experiment showed that mPSCs (CD45.2) could be embedded into nonobese diabetic/severe combined immunodeficiency mice (CD45.1) with about 3% engraftment efficiency after 3 weeks transplantation. This study demonstrated that we developed the 3D induction approach that could efficiently promote the hematopoietic differentiation of mPSCs in vitro and obtained the multipotential progenitors that possessed the short-term engraftment potential.
机译:体外代的造血干细胞从多能干细胞(已经)视为新颖的治疗方法取代骨髓移植免疫排斥反应和移植物抗宿主病。目前为止,许多不同的方法评估的指挥已经转向不同的造血细胞,然而,低效率和功能进一步限制造血分化研究,我们的研究旨在建立一个三维(3 d)造血细胞分化的方法,作为胚胎发育的重演在体外一定程度的复杂性的愿望无法实现在一个二维的文化系统。那只老鼠已经可以有效地诱导造血分化与一个表达式造血的制造商,如c - kit, CD41,CD45在自组装多肽水凝胶。细胞克隆形成试验结果建议鼠标已经可以分化成(mPSCs)multipotential祖细胞和3 d归纳系统导出造血殖民地拥有区分成淋巴细胞的潜力细胞。移植实验表明mPSCs可以嵌入到nonobese (CD45.2)糖尿病/严重联合免疫缺陷小鼠(CD45.1)移植效率约3%3周后移植。证明了我们开发3 d归纳的方法,可以有效地促进mPSCs体外造血分化并获得multipotential祖细胞拥有短期移植的潜力。

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