Cited by 2,931Extracellular vesicles in diseaseCellular transport and secretionLipid Membrane Structure and Behavior

Vesicle formation during reticulocyte maturation. Association of plasma membrane activities with released vesicles (exosomes)

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Johnstone, R M, Adam, M, Hammond, J R, Orr, L, Turbide, C·1987·Journal of Biological Chemistry

Abstract

Vesicles are released during the in vitro culture of sheep reticulocytes which can be harvested by centrifugation at 100,000 X g for 90 min. These vesicles contain a number of activities, characteristic of the reticulocyte plasma membrane, which are known to diminish or disappear upon reticulocyte maturation. The activities include acetylcholinesterase, cytochalasin B binding (glucose transporter) nucleoside binding (i.e. nucleoside transporter), Na+-independent amino acid transport, and the transferrin receptor. Enzymes of cytosolic origin are not detectable or are present at low activity in the vesicles. Cultures of whole blood, mature red cells, or white cells do not yield comparable levels of these activities, supporting the conclusion that the activities arise from the reticulocytes. In addition, the lipid composition of the vesicles shows the high sphingomyelin content characteristic of sheep red cell plasma membranes, but not white cell or platelet membranes, also consistent with the conclusion that the vesicles are of reticulocyte origin. It is suggested that vesicle externalization may be a mechanism for shedding of specific membrane functions which are known to diminish during maturation of reticulocytes to erythrocytes.

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Crossref · 10.1016/s0021-9258(18)48095-7

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Research works printed but not linked: 4

  1. Sanchez, 1986, Biochim. Biophys. Acta, 856, 113
  2. Firkin, 1963, Aust. Ann. Med., 12, 26
  3. Harding, 1984, Eur. J. Cell. Biol., 35, 256
  4. Zweig, 1981, J. Supramol. Struct., 17, 163

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Authors
Johnstone, R. M., Adam, M., Hammond, J. R., Orr, L., & Turbide, C.
Affiliations
McGill University (CA)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1987-07
Volume
262
Issue
19
Pages
9412-9420
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1915536483
Cited by
2,931
References
51
Citations by year
2026: 132 · 2025: 231 · 2024: 281 · 2023: 285 · 2022: 291 · 2021: 296 · 2020: 276 · 2019: 197 · 2018: 157 · 2017: 134 · 2016: 131 · 2015: 79 · 2014: 76 · 2013: 46 · 2012: 53
FWCI
1.93
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
Keywords
reticulocyte maturation, exosomes, vesicle formation, membrane shedding, acetylcholinesterase, glucose transporters, nucleoside transporters, amino acid transport, transferrin receptor, sphingomyelin, sheep red blood cells, membrane lipid composition
MeSH terms
Acetylcholinesterase, Amino Acids, Animals, Carrier Proteins, Cell Membrane, Cells, Cultured, Cytochalasin B, Glyceraldehyde-3-Phosphate Dehydrogenases, Leucine, Membrane Proteins, Monosaccharide Transport Proteins, Receptors, Transferrin, Reticulocytes, Sheep, Sodium, Thioinosine, Nucleoside Transport Proteins

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