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Related Concept Videos

Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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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.
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Tissue Renewal without Stem Cells01:23

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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
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Adult Stem Cells01:33

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Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
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Plant Cells and Tissues02:01

Plant Cells and Tissues

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Plant tissues are collections of similar cells performing related functions. Different plant tissues will have their own specialized roles and can be combined with other tissues to form organs such as flowers, fruit, stem, and leaves. Two major types of plant tissue include meristematic and permanent tissue.
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Embryonic Stem Cells00:58

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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Related Experiment Video

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Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration
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Stem cell-based tissue engineering approaches for musculoskeletal regeneration.

Patrick T Brown1, Andrew M Handorf, Won Bae Jeon

  • 1Wisconsin Institutes of Medical Research, 1111 Highland Ave., Madison, WI 53705, USA.

Current Pharmaceutical Design
|February 26, 2013
PubMed
Summary

Stem cells are revolutionizing regenerative medicine and tissue engineering for musculoskeletal conditions. Research focuses on controlling stem cell differentiation using biomaterials, growth factors, and mechanical cues for effective therapies.

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Area of Science:

  • Regenerative Medicine
  • Tissue Engineering
  • Biomaterials Science

Background:

  • Stem cells, including mesenchymal, embryonic, and induced pluripotent stem cells, are crucial for tissue engineering.
  • Biomaterial scaffolds and bioreactors are advancing tissue formation by mimicking cellular microenvironments.
  • Understanding stem cell behavior is key to developing effective tissue regeneration strategies.

Purpose of the Study:

  • To review current advancements in tissue engineering.
  • To highlight the role of various stem cell sources and induction factors.
  • To discuss regulatory mechanisms governing stem cell proliferation and differentiation.

Main Methods:

  • Review of stem cell sources (mesenchymal, embryonic, iPSCs).
  • Analysis of induction factors: growth factors, oxygen tension, biomaterials, mechanical stimulation.
  • Examination of internal and external regulatory mechanisms.

Main Results:

  • Biomaterial scaffolds can be tailored to enhance stem cell self-renewal and direct cell fates.
  • Growth factors and oxygen tension are critical for regulating stem cell activity.
  • Precise control over stem cell differentiation in culture is the primary research goal.

Conclusions:

  • Stem cell-based tissue engineering offers significant potential for treating musculoskeletal diseases.
  • Advancements in biomaterials and understanding of cellular microenvironments are driving progress.
  • Continued research into controlling stem cell behavior is essential for therapeutic development.