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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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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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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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Mitonuclear Communication in Stem Cell Function.

Baozhou Peng1,2,3, Yaning Wang1,2,3, Hongbo Zhang1,2,3

  • 1Advanced Medical Technology Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.

Cell Proliferation
|December 27, 2024
PubMed
Summary
This summary is machine-generated.

Mitochondria are vital for cell function and stress response. Understanding mitonuclear communication is key to controlling stem cell fate for tissue repair and longevity.

Keywords:
agingfate determinationmetabolismmitochondriamitochondrial stressmitonuclear communicationstem cell

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Area of Science:

  • Cell Biology
  • Mitochondrial Biology
  • Stem Cell Biology

Background:

  • Mitochondria are central to cellular energy production (ATP) and metabolic pathways.
  • Mitochondria play a role in cellular stress responses.
  • Most mitochondrial proteins are encoded by nuclear DNA, necessitating communication between the nucleus and mitochondria.

Purpose of the Study:

  • To review the critical roles of mitonuclear communication and mitochondrial proteostasis in stem cell fate.
  • To explore the impact of these processes on cellular homeostasis and aging.
  • To discuss implications for stem cell therapies and lifespan extension.

Main Methods:

  • Literature review focusing on mitonuclear communication.
  • Analysis of mitochondrial proteostasis mechanisms.
  • Examination of stem cell biology literature related to mitochondrial function.

Main Results:

  • Mitonuclear communication is essential for maintaining mitochondrial homeostasis.
  • Mitochondrial functions significantly influence stem cell fate determination.
  • Mitochondrial proteostasis is crucial for stem cell function and organismal health.

Conclusions:

  • Effective mitonuclear communication and proteostasis are vital for stem cell health and function.
  • Understanding these interactions can lead to advancements in regenerative medicine and anti-aging strategies.
  • Mitochondrial health is a key factor in tissue maintenance, regeneration, and the aging process.