Cited by 124Erythrocyte Function and PathophysiologyBlood properties and coagulationAdenosine and Purinergic Signaling

Red not dead: signaling in and from erythrocytes

Sprague, Randy S., Stephenson, Alan H., Ellsworth, Mary L.·2007·Trends in Endocrinology & Metabolism

Abstract

The oxygen required to meet metabolic needs of all tissues is delivered by the erythrocyte, a small, flexible cell which, in mammals, is devoid of a nucleus and mitochondria. Despite its simple appearance, this 'bag of hemoglobin' has an important role in its own distribution, enabling the delivery of oxygen to precisely meet localized metabolic need. When an erythrocyte enters an area in which tissue oxygen demand exceeds supply, a signaling pathway is activated resulting in the release of adenosine 5'-triphosphate (ATP). This ATP acts in a paracrine fashion to increase vascular caliber resulting in increased oxygen delivery. Defects in this pathway are found in erythrocytes of humans with type 2 diabetes (DM2) and could contribute to the perfusion abnormalities in skeletal muscle associated with this disease.

Integrity signals

Registry

Crossref · 10.1016/j.tem.2007.08.008

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65 of 65 references verified0 citation errors · 0 not checkable

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  • All four mammalian molybdenum-containing enzymes (XO, AO, sulfite oxidase, and mARC) are able to reduce nitrite at different intrinsic rates.

    “Subsequently, several reports have shown that all mammalian Mo-containing enzymes [XO, aldehyde oxidase (AO), sulfite oxidase, and the mitochondrial amidoxime-reducing component (mARC)] are able to reduce nitrite at different intrinsic rates (Table 4) (575, 880, 990).”
  • Both mARC enzymes can reduce nitrite to NO in a process very sensitive to oxygen-mediated inhibition.

    “Both mARC enzymes can reduce nitrite to NO in a process very sensitive to oxygen-mediated inhibition (Table 4) (880).”

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Authors
Sprague, R. S., Stephenson, A. H., & Ellsworth, M. L.
Affiliations
Saint Louis University (US)
Venue
Trends in Endocrinology & Metabolism
Publisher
Elsevier BV
Published
2007-11
Volume
18
Issue
9
Pages
350-355
ISSN
1043-2760 (ISSN-L)
OpenAlex
W1992160483
Cited by
124
References
68
Citations by year
2026: 2 · 2025: 6 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 4 · 2019: 11 · 2018: 8 · 2017: 6 · 2016: 6 · 2015: 6 · 2014: 8 · 2013: 7 · 2012: 8
FWCI
0.96
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Endocrinology and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Diabetes Association
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL051298, HL-51298, HL64180, R01HL056249, R01HL064180, HL56249, HL 39226)
Topics
  • Health Sciences › Medicine › Physiology › Erythrocyte Function and Pathophysiology
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Blood properties and coagulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Adenosine and Purinergic Signaling
Keywords
erythrocytes, ATP release, paracrine signaling, oxygen delivery, vascular caliber, type 2 diabetes, skeletal muscle perfusion
MeSH terms
Energy Metabolism, Erythrocytes, Humans, Oxygen, Signal Transduction

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