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细胞播种策略影响人类诱导多能干细胞的新陈代谢和差异化能力,使其成为胰腺原始细胞

Hui Huang¹, Kaiming Ye^1,2, Sha Jin^1,2

¹Department of Biomedical Engineering Thomas J. Watson College of Engineering and Applied Science Binghamton University, State University of New York (SUNY), Binghamton, New York, USA.

Biotechnology journal

|April 26, 2025

概括

优化人类诱导多能干细胞 (iPSC) 播种密度,可以改善分化成最终的内皮和胰腺原始体. 细胞播种策略影响新陈代谢活动,增强治疗细胞生成的可再生性.

科学领域:

干细胞生物学干细胞生物学
细胞代谢的细胞代谢.
发育生物学是发展生物学.

背景情况:

人类诱导的多能干细胞 (iPSCs) 提供了治疗细胞生成的可再生来源.
不一致的iPSCs分化为特定的血统,如最终的内皮 (DE) 和胰腺祖先 (PPs) 阻碍了临床应用.
细胞多能性和代谢状态是影响分化效率的关键因素.

研究的目的:

研究如何在自我更新和播种密度期间的iPSC汇合影响代谢活动.
为了确定播种密度对糖解和氧化酸化之间的转移的影响.
优化iPSC差异化协议,以实现强大的DE和PP血统生成.

主要方法:

在不同的播种密度和汇聚条件下培养人类iPSC.
测量细胞代谢活动,包括氧气消耗率 (OCR).
通过标记基因表达来评估差异化效率 (DE的SOX17,PP的PDX1/NKX6.1).

主要成果:

较高的播种密度最初降低了iPSC的氧气消耗率和代谢活性.
确定了最佳的播种密度,以支持对DE和PP血统的强有力的分化.
收获时的细胞汇合对胰腺血统形成或代谢活动的影响很小.

结论:

iPSC播种策略显著影响细胞代谢和分化强度.
优化播种密度对于从iPSCs中生成可再生的DE和PP细胞至关重要.
了解代谢差异化相互作用可以提高基于iPSC的组织工程策略.

关键词:

细胞播种细胞播种不同化的差异化差异化.人类诱导的多能干细胞干细胞.代谢代谢代谢代谢消耗氧气消耗氧气的时间.胰腺的前代细胞.

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相关概念视频

iPS Cell Differentiation

iPS Cell Differentiation

The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.