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Related Concept Videos

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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A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
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Isolating, Sequencing and Analyzing Extracellular MicroRNAs from Human Mesenchymal Stem Cells
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Unveiling distinctions between mesenchymal stromal cells and stem cells by single-cell transcriptomic analysis.

Kaijing Yan1,2, Fei Ma2, Xiaoxi Song2

  • 1Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan, 610044, China.

Heliyon
|March 4, 2025
PubMed
Summary

This study identifies distinct gene markers to differentiate mesenchymal stromal cells (MSCs) from stem cells using single-cell transcriptomics. This provides a new method for MSC quality control and understanding their function.

Keywords:
AD-MSCsBM-MSCsHeterogeneityMesenchymal stromal cellsPM-MSCsSingle cell transcriptomeStem cellsTrajectoryUC-MSCs

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Area of Science:

  • Cell Biology
  • Transcriptomics
  • Stem Cell Research

Background:

  • Mesenchymal stromal cells (MSCs) and stem cells are crucial for regenerative medicine but lack clear distinguishing markers.
  • Current identification methods are insufficient to differentiate these cell types accurately.

Purpose of the Study:

  • To identify distinct molecular markers for differentiating MSCs from various stem cells.
  • To establish a reliable method for MSC quality control and gain mechanistic insights.

Main Methods:

  • Single-cell transcriptomic analysis was employed to profile gene expression.
  • Key genes associated with self-renewal, differentiation, and MSC function were analyzed.
  • Trajectory analysis was used to map developmental pathways.

Main Results:

  • Eight genes (SOX2, NANOG, POU5F1, SFRP2, DPPA4, SALL4, ZFP42, MYCN) are expressed in stem cells (ESCs, iPSCs, ASCs) but not MSCs.
  • Five genes (TMEM119, FBLN5, KCNK2, CLDN11, DKK1) are specific to MSCs and absent in stem cells.
  • Trajectory analysis revealed distinct developmental paths from stem cells to MSCs, with adipose-derived MSCs showing broader regulatory gene expression.

Conclusions:

  • Distinct gene expression profiles differentiate MSCs from stem cells.
  • The identified markers offer a novel approach for MSC quality control and mechanistic studies.
  • Understanding these molecular differences is vital for advancing stem cell therapies and MSC applications.