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Related Concept Videos

Mesenchymal Stem Cells01:19

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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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The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
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Stem Cell Therapy for Tissue Regeneration01:21

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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
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Author Spotlight: Advancements in iPSCs and Genetic Disease Research
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Mechanisms of mesenchymal stem/stromal cell function.

Jeffrey L Spees1,2, Ryang Hwa Lee3, Carl A Gregory4

  • 1University of Vermont, Burlington, VT, USA. jspees@uvm.edu.

Stem Cell Research & Therapy
|September 2, 2016
PubMed
Summary

Mesenchymal stem/stromal cells (MSCs) promote tissue repair via paracrine signaling, mitochondria transfer, and exosome release. Understanding these mechanisms advances cell therapy and regenerative medicine.

Keywords:
ExosomeMesenchymal stem cellMicrovesicleMitochondria transferMultipotent stromal cellParacrineTunneling nanotube

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Area of Science:

  • Regenerative Medicine
  • Cell Biology
  • Immunology

Background:

  • Mesenchymal stem/stromal cells (MSCs) are crucial for tissue repair and organ regeneration.
  • Research has intensified to elucidate the multifaceted mechanisms underlying MSC therapeutic functions.

Purpose of the Study:

  • To review the key mechanisms by which MSCs mediate tissue rescue and repair.
  • To highlight MSC-derived therapeutics and their potential in regenerative medicine.

Main Methods:

  • Review of recent scientific literature focusing on MSC function and therapeutic applications.
  • Analysis of MSC-mediated effects on immune responses, cell survival, and fibrosis.

Main Results:

  • MSCs exert therapeutic effects through paracrine activity (secretion of bioactive molecules).
  • Mitochondria transfer via nanotubes or microvesicles contributes to MSC-mediated repair.
  • Exosomes and microvesicles carrying RNA and other molecules are key mediators of MSC function.

Conclusions:

  • Understanding MSC mechanisms is vital for advancing cell-based therapies.
  • MSC-derived therapeutics offer significant promise for regenerative medicine applications.