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Cited by 297Extracellular vesicles in diseaseReproductive System and PregnancyPregnancy and preeclampsia studies

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Pregnancy-Associated Exosomes and Their Modulation of T Cell Signaling

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Taylor, Douglas D, Akyol, Sibel, Gercel-Taylor, Cicek·2006·The Journal of Immunology
DOI 10.4049/jimmunol.176.3.1534
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Abstract

Exosome release by viable cells is a feature of activated cell types, including tumors, fetal cells, and cells of the immune system. Exosomes critically regulate immune activation, by mediating activation-induced cell death. Fetal cells may mimic these events to selectively delete reactive lymphocytes. In this study the presence and composition of placenta-derived exosomes are demonstrated in the maternal circulation along with their consequences on T cell activation markers. For all pregnant patients, exosomes were isolated from sera obtained between 28 and 30 wk gestation. For pregnant women, subsequently delivering at term, circulating levels of placental exosomes were 1.8 times greater than those delivering preterm (p < 0.0001). Exosomes isolated from pregnancies subsequently delivering at term expressed significantly higher levels of biologically active components, including Fas ligand (FasL) and HLA-DR, than those from pregnancies delivering preterm. Standardizing for protein concentrations, exosomes from term-delivering pregnancies exhibited greater suppression of CD3-ζ and JAK3 than those delivering preterm. The suppression of CD3-ζ and JAK3 correlated with exosome expression levels of FasL (r2 = 0.92 and r2 = 0.938, respectively). Fractionation of exosomes from term-delivering pregnancies by continuously eluting electrophoresis indicated that intact 42kD FasL and an unidentified 24-kDa protein were associated with CD3-ζ suppression. Our results demonstrated that exosomes from pregnancies ultimately delivering at term are present at significantly greater concentrations than those from pregnancies delivering preterm; however, exosomes from term-delivering pregnancies also exhibit significantly greater suppression of CD3-ζ and JAK3.

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Metadata

Authors
Taylor, D. D., Akyol, S., & Gercel-Taylor, C.
Affiliations
  • University of Louisville (US)
  • Department of Obstetrics, Gynecology, and Women’s Health, University of Louisville School of Medicine , Louisville, KY 40202
ORCID
Akyol, Sibel
Venue
The Journal of Immunology
Publisher
Oxford University Press (OUP)
Published
2006-02-01
Volume
176
Issue
3
Pages
1534-1542
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
DOI
10.4049/jimmunol.176.3.1534
OpenAlex
W1893364625
Cited by
297
References
49
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 11 · 2020: 5 · 2019: 8 · 2018: 12 · 2017: 16 · 2016: 18 · 2015: 20 · 2014: 36 · 2013: 29 · 2012: 25
FWCI
8.17
Type
journal article
Language
en
Status
Retracted
Update notices
retraction (2015-06-15)
Open access
Licence
academic.oup.com/pages/standard-publication-reuse-rights (vor)
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01hd042674-04)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD42674)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
placental exosomes, pregnancy, preterm birth, T cell signaling, Fas ligand, CD3zeta, JAK3, HLA-DR, maternal serum, maternal-fetal immune tolerance
MeSH terms
Tumor Necrosis Factor Inhibitors, Adult, Chromatography, Agarose, Electrophoresis, Polyacrylamide Gel, Exocytosis, Female, Histocompatibility Antigens, Humans, Immune Tolerance, Interleukin-2, Lymphocyte Activation, Membrane Glycoproteins, Pregnancy, Pregnancy Proteins, Protein-Tyrosine Kinases, T-Lymphocytes, Signal Transduction, Down-Regulation, CD3 Complex, fas Receptor, Jurkat Cells, Premature Birth, Tumor Necrosis Factors, Fas Ligand Protein, Janus Kinase 3

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