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Related Concept Videos

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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
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The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
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Stem Cell Niche01:26

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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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Multipotency of Hematopoietic Stem Cells01:19

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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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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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Analysis of Hematopoietic Stem Progenitor Cell Metabolism
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Metabolic regulation of stem cell function.

R J Burgess1, M Agathocleous, S J Morrison

  • 1Department of Pediatrics, Howard Hughes Medical Institute, Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.

Journal of Internal Medicine
|April 5, 2014
PubMed
Summary
This summary is machine-generated.

Cellular metabolism significantly impacts stem cell function, influencing proliferation and differentiation. Understanding these metabolic pathways is crucial for regulating stem cell behavior and development.

Keywords:
differentiationmetabolismself-renewalstem cell

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Area of Science:

  • Stem Cell Biology
  • Cellular Metabolism
  • Developmental Biology

Background:

  • Stem cell function is governed by intrinsic (transcriptional, epigenetic) and extrinsic (niche, humoral) signals.
  • The interplay between stem cell regulation and cellular metabolism is an emerging area of research.
  • Cellular differentiation is often associated with metabolic shifts, including changes in glycolysis and oxidative phosphorylation.

Purpose of the Study:

  • To explore the role of cellular metabolism in regulating stem cell function.
  • To identify how metabolic pathways influence stem cell proliferation and differentiation.
  • To investigate the complex cross-regulation between metabolism and other stem cell regulatory mechanisms.

Main Methods:

  • Review of existing literature on stem cell regulation and metabolism.
  • Analysis of studies examining metabolic pathway alterations during stem cell differentiation.
  • Examination of how metabolic pathways affect signaling, epigenetics, and oxidative stress in stem cells.

Main Results:

  • Metabolic pathways regulate stem cell proliferation and differentiation by controlling energy production and biosynthesis.
  • Specific metabolic pathways function distinctively in stem cells compared to progenitors and differentiated cells.
  • Metabolism influences stem cell function by modulating signal transduction, epigenetic modifications, and oxidative stress.

Conclusions:

  • Metabolism plays a critical role in the regulation of stem cell function.
  • Complex cross-regulatory networks exist between cellular metabolism and other stem cell regulatory mechanisms.
  • Further research is needed to fully elucidate these metabolic regulatory roles in stem cells.