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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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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.
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Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
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Interaction between Mesenchymal Stem Cells and Intervertebral Disc Microenvironment: From Cell Therapy to Tissue

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Orthopedics

Background:

  • Low back pain (LBP) is a widespread disabling condition often caused by intervertebral disc degeneration (IDD).
  • Mesenchymal stem cells (MSCs) are explored for disc regeneration due to their differentiation and trophic factor secretion capabilities.
  • The intervertebral disc (IVD) presents a unique, hostile microenvironment (avascularity, hypoxia, low pH, etc.) that challenges cell therapies.

Purpose of the Study:

  • To review the characteristics of the healthy and degenerated IVD microenvironment.
  • To analyze how the IVD microenvironment affects resident and MSC viability and function.
  • To highlight innovative cell therapies and biomaterial strategies overcoming IVD microenvironmental challenges.

Main Methods:

  • Comprehensive literature review of studies on IVD microenvironment and cell-based therapies.
  • Analysis of MSC behavior and function within the IVD niche.
  • Evaluation of novel approaches to enhance cell therapy efficacy in degenerated discs.

Main Results:

  • The IVD microenvironment significantly impacts cell survival and therapeutic potential.
  • MSCs can adopt NP cell phenotypes and secrete ECM components but face challenges in vivo.
  • Recent advancements focus on functionalized biomaterials and optimized cell delivery to improve therapeutic outcomes.

Conclusions:

  • Understanding the IVD microenvironment is crucial for developing effective cell therapies for LBP.
  • Innovative strategies are needed to protect and enhance MSC function within the challenging IVD niche.
  • Future research should focus on biomaterial-based approaches to create a more conducive environment for IVD regeneration.