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Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
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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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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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The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
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Embryonic Stem Cells00:57

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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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An Enzymatic Method to Rescue Mesenchymal Stem Cells from Clotted Bone Marrow Samples
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Stem cells and bone: a historical perspective.

Paolo Bianco1

  • 1Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy.

Bone
|August 31, 2014
PubMed
Summary
This summary is machine-generated.

Bone harbors two main postnatal stem cell systems that coordinate physiological responses. Understanding their interplay, particularly within the bone marrow niche, is crucial for regenerative medicine advancements.

Keywords:
BoneHematopoietic nicheMesenchymal stem cellsSkeletal stem cellsStem cells

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Area of Science:

  • Biomedical Science
  • Stem Cell Biology
  • Bone Physiology

Background:

  • Bone is intrinsically linked with stem cell biology and regenerative medicine.
  • It hosts two well-characterized postnatal stem cell systems.

Observation:

  • The interaction between bone and hematopoiesis presents a long-standing scientific challenge.
  • This interplay has driven significant advancements in cell biology and medicine, including hematopoietic stem cell transplantation.
  • The concept of the stem cell 'niche' is central to current research.

Findings:

  • Bone serves as a unique model for studying stem cell interactions and their physiological roles.
  • The historical perspective reveals the evolution of stem cell research since WWII.
  • A paradigm shift in scientific research and policy has influenced current stem cell interest.

Implications:

  • New research avenues are opening up regarding bone's role in physiology and medicine.
  • Understanding bone and stem cell interplay offers new opportunities for therapeutic development.
  • This research highlights the evolving relationship between science, society, and policy.