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  • Keller, TCS (author)

The role of globins in cardiovascular physiology

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • American Physiological Society,2022

Numbers

  • LIBRIS-ID:oai:prod.swepub.kib.ki.se:148690558
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:148690558URI
  • https://doi.org/10.1152/physrev.00037.2020DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Globin proteins exist in every cell type of the vasculature, from erythrocytes to endothelial cells, vascular smooth muscle cells, and peripheral nerve cells. Many globin subtypes are also expressed in muscle tissues (including cardiac and skeletal muscle), in other organ-specific cell types, and in cells of the central nervous system (CNS). The ability of each of these globins to interact with molecular oxygen (O2) and nitric oxide (NO) is preserved across these contexts. Endothelial α-globin is an example of extraerythrocytic globin expression. Other globins, including myoglobin, cytoglobin, and neuroglobin, are observed in other vascular tissues. Myoglobin is observed primarily in skeletal muscle and smooth muscle cells surrounding the aorta or other large arteries. Cytoglobin is found in vascular smooth muscle but can also be expressed in nonvascular cell types, especially in oxidative stress conditions after ischemic insult. Neuroglobin was first observed in neuronal cells, and its expression appears to be restricted mainly to the CNS and the peripheral nervous system. Brain and CNS neurons expressing neuroglobin are positioned close to many arteries within the brain parenchyma and can control smooth muscle contraction and thus tissue perfusion and vascular reactivity. Overall, reactions between NO and globin heme iron contribute to vascular homeostasis by regulating vasodilatory NO signals and scavenging reactive species in cells of the mammalian vascular system. Here, we discuss how globin proteins affect vascular physiology, with a focus on NO biology, and offer perspectives for future study of these functions.

Added entries (persons, corporate bodies, meetings, titles ...)

  • Lechauve, C (author)
  • Keller, AS (author)
  • Brooks, S (author)
  • Weiss, MJ (author)
  • Columbus, L (author)
  • Ackerman, H (author)
  • Cortese-Krott, MM (author)
  • Isakson, BE (author)

Related titles

  • In:Physiological reviews: American Physiological Society102:2, s. 859-8921522-12100031-9333

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