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Mesenchymal Stem Cells01:19

Mesenchymal Stem Cells

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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
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Abnormal Proliferation

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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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相关实验视频

Updated: Jul 27, 2025

Preparation of Myeloid Derived Suppressor Cells MDSC from Naive and Pancreatic Tumor-bearing Mice using Flow Cytometry and Automated Magnetic Activated Cell Sorting AutoMACS
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在M-MDSCC中使用.

Arpa Aintablian1, Sandra Strozniak1, Marion Heuer1

  • 1Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany.

Frontiers in immunology
|June 5, 2023
PubMed
概括
此摘要是机器生成的。

干白素-3 (IL-3) 在体外产生单细胞髓衍生抑制细胞 (M-MDSC),类似于GM-CSF. 这些IL-3产生的M-MDSC表现出更高的阿尔金酶1 (Arg1) 表达和增强的Arg1介导免疫抑制.

关键词:
转基因-CSFF是什么意思在IL-3中,IL-3被认为是IL-3.骨髓 骨髓 骨髓 骨髓 骨髓在体外培养培养骨髓衍生的抑制细胞 (MDSC)协议 协议 协议 协议 协议

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相关实验视频

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科学领域:

  • 免疫学 免疫学 免疫学
  • 细胞生物学 细胞生物学

背景情况:

  • 骨髓衍生抑制细胞 (MDSC) 是免疫反应的关键调节者.
  • 诱导性氧化合成酶 (iNOS) 和酶1 (Arg1) 是关键的MDSC效应器功能.
  • 颗粒细胞-巨细胞殖民地刺激因子 (GM-CSF) 促进MDSC的发展,但IL-3的作用不太清楚.

研究的目的:

  • 研究IL-3在产生单细胞MDSC (M-MDSC) 的潜力.
  • 将IL-3产生的M-MDSC与由GM-CSF产生的M-MDSC进行比较.

主要方法:

  • 用IL-3或GM-CSF在体外培养3天的小鼠骨髓 (BM) 细胞.
  • 使用流细胞计的表型分析确定了M-MDSC和其他细胞类型.
  • 功能性测试评估了使用iNOS和Arg1抑制剂在LPS+IFN-γ激活后的抑制活性.

主要成果:

  • 像GM-CSF一样,IL-3产生了具有相似表型和产量的M-MDSC.
  • 由IL-3产生的M-MDSC显示TNF,IL-1β和IL-10的产生较低,但Arg1的表达更高.
  • 由IL-3生成的M-MDSC表现出增加的Arg1-依赖的抑制活性.

结论:

  • IL-3可以在体外产生M-MDSC,反映GM-CSF的能力.
  • 由IL-3诱导的M-MDSC具有独特的功能性质,特别是增强了Arg1的表达和活性.
  • 这一发现为研究IL-3在MDSC生物学中的作用提供了一个新的体外模型.