Reactive oxygen species and stem/progenitor cells

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Stem cells are defined as cells that have the capacity of self-renewal, multipotency/pluripotency, and clonality. The bone marrow (BM) microenvironment, also termed the stem cell niche, regulates self-renewal, differentiation, survival, migration, and proliferation of stem/progenitor cells as well as their mobilization involved in neovascularization and tissue repair. Reactive oxygen species (ROS) play an important role in regulating stem and progenitor cell function. A low level of endogenous ROS is involved in maintaining the quiescence of hematopoietic stem cells (HSCs), whereas a higher level of ROS within HSCs or their niche promotes differentiation, proliferation, migration, and survival of HSCs or stem/progenitor cells. Major sources of ROS are NADPH oxidase and mitochondria. In response to ischemic injury, ROS derived from NADPH oxidase are increased in BM microenvironment, which in turn promotes oxygen consumption and HIF-1α expression throughout the BM. This in turn promotes progenitor cell expansion and mobilization from BM, leading to reparative neovascularization and tissue repair. In pathophysiological states such as aging, atherosclerosis, heart failure, hypertension, and diabetes, excess amounts of ROS create inflammatory and oxidative microenvironment, which induces cell damage and apoptosis of stem and progenitor cells. Understanding the molecular mechanisms of how ROS regulate function of stem and progenitor cells and their niche in physiological and pathological conditions will lead to the development of novel therapeutic strategies.

Original languageEnglish (US)
Title of host publicationSystems Biology of Free Radicals and Antioxidants
PublisherSpringer-Verlag Berlin Heidelberg
Pages2471-2497
Number of pages27
ISBN (Electronic)9783642300189
ISBN (Print)3642300170, 9783642300172
DOIs
StatePublished - May 1 2012

Fingerprint

Reactive Oxygen Species
Stem Cells
Hematopoietic Stem Cells
Bone Marrow
NADPH Oxidase
Stem Cell Niche
Oxygen Consumption
Atherosclerosis
Mitochondria
Heart Failure
Apoptosis
Hypertension
Wounds and Injuries

Keywords

  • Bone marrow
  • Hematopoietic stem cells
  • Mitochondria
  • NADPH oxidase
  • Reactive oxygen species
  • Stem cell niche
  • Stem/progenitor cells

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Fukai, M. (2012). Reactive oxygen species and stem/progenitor cells. In Systems Biology of Free Radicals and Antioxidants (pp. 2471-2497). Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/978-3-642-30018-9_96

Reactive oxygen species and stem/progenitor cells. / Fukai, Masuko.

Systems Biology of Free Radicals and Antioxidants. Springer-Verlag Berlin Heidelberg, 2012. p. 2471-2497.

Research output: Chapter in Book/Report/Conference proceedingChapter

Fukai, M 2012, Reactive oxygen species and stem/progenitor cells. in Systems Biology of Free Radicals and Antioxidants. Springer-Verlag Berlin Heidelberg, pp. 2471-2497. https://doi.org/10.1007/978-3-642-30018-9_96
Fukai M. Reactive oxygen species and stem/progenitor cells. In Systems Biology of Free Radicals and Antioxidants. Springer-Verlag Berlin Heidelberg. 2012. p. 2471-2497 https://doi.org/10.1007/978-3-642-30018-9_96
Fukai, Masuko. / Reactive oxygen species and stem/progenitor cells. Systems Biology of Free Radicals and Antioxidants. Springer-Verlag Berlin Heidelberg, 2012. pp. 2471-2497
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