Evidence map›Paper›PMID 33887202›Full record

SynthesisImmunity2021

The CD94/NKG2A inhibitory receptor educates uterine NK cells to optimize pregnancy outcomes in humans and mice.

Norman Shreeve, Delphine Depierreux, Delia Hawkes, James A Traherne, Ulla Sovio, Oisin Huhn, Jyothi Jayaraman, Amir Horowitz, Hormas Ghadially, John R B Perry and 4 more

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in Immunity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
5.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 88 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Resident CD49aScience advances · 2026
    Article
  5. Article
  6. Review
  7. Innate Lymphoid Cells in Reproductive Health and Disease.European journal of immunology · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Natural Killer Cell Education in Women With Recurrent Pregnancy Loss.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 7 institutions in 3 countries.

Norman ShreeveDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK; University of Cambridge Centre for Trophoblast Research, Cambridge, UK.
Delphine DepierreuxDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK; University of Cambridge Centre for Trophoblast Research, Cambridge, UK.
Delia HawkesDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK.
James A TraherneDepartment of Pathology, University of Cambridge, Cambridge, UK.
Ulla SovioDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK; University of Cambridge Centre for Trophoblast Research, Cambridge, UK.
Oisin HuhnDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK; University of Cambridge Centre for Trophoblast Research, Cambridge, UK; Department of Pathology, University of Cambridge, Cambridge, UK; AstraZeneca, Granta Park, Cambridge CB21 6GH, UK.
Jyothi JayaramanUniversity of Cambridge Centre for Trophoblast Research, Cambridge, UK; Department of Pathology, University of Cambridge, Cambridge, UK; Department of Physiology, Development and Neurobiology, University of Cambridge, Cambridge, UK.
Amir HorowitzDepartment of Oncological Sciences, Precision Immunology Institute and Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Hormas GhadiallyAstraZeneca, Granta Park, Cambridge CB21 6GH, UK.
John R B PerryMRC Epidemiology Unit, University of Cambridge, Cambridge UK.
Ashley MoffettUniversity of Cambridge Centre for Trophoblast Research, Cambridge, UK; Department of Pathology, University of Cambridge, Cambridge, UK.
John G SledDepartment of Medical Biophysics, University of Toronto, Toronto, Canada; Translational Medicine, Hospital for Sick Children, Toronto, Canada.
Andrew M SharkeyUniversity of Cambridge Centre for Trophoblast Research, Cambridge, UK; Department of Pathology, University of Cambridge, Cambridge, UK.
Francesco ColucciDepartment of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge CB2 0SW, UK; University of Cambridge Centre for Trophoblast Research, Cambridge, UK. Electronic address: fc287@medschl.cam.ac.uk.
University of Cambridge · GBAstraZeneca (United Kingdom) · GBNational Institute for Health Research · GBHospital for Sick Children · CAIcahn School of Medicine at Mount Sinai · USMRC Epidemiology Unit · GBNIHR Cambridge Biomedical Research Centre

Funding

Medical Research Council MC_UU_00006/2Medical Research Council MC_UU_12015/2Medical Research Council MR/P001092/1Wellcome TrustWellcome Trust 200841/Z/16/Z
6 · The paper itself

Abstract

The conserved CD94/NKG2A inhibitory receptor is expressed by nearly all human and ∼50% of mouse uterine natural killer (uNK) cells. Binding human HLA-E and mouse Qa-1, NKG2A drives NK cell education, a process of unknown physiological importance influenced by HLA-B alleles. Here, we show that NKG2A genetic ablation in dams mated with wild-type males caused suboptimal maternal vascular responses in pregnancy, accompanied by perturbed placental gene expression, reduced fetal weight, greater rates of smaller fetuses with asymmetric growth, and abnormal brain development. These are features of the human syndrome pre-eclampsia. In a genome-wide association study of 7,219 pre-eclampsia cases, we found a 7% greater relative risk associated with the maternal HLA-B allele that does not favor NKG2A education. These results show that the maternal HLA-B→HLA-E→NKG2A pathway contributes to healthy pregnancy and may have repercussions on offspring health, thus establishing the physiological relevance for NK cell education. VIDEO ABSTRACT.

Indexed as

AnimalsFemaleGenome-Wide Association StudyHLA AntigensHumansKiller Cells, NaturalMaleMiceMice, Inbred C57BLNK Cell Lectin-Like Receptor Subfamily CNK Cell Lectin-Like Receptor Subfamily DPlacentaPregnancyPregnancy OutcomeUterusHLA AntigensKLRC1 protein, humanKLRD1 protein, humanNK Cell Lectin-Like Receptor Subfamily CNK Cell Lectin-Like Receptor Subfamily Dasymmetric fetal growthHLA-BHLA-Einhibitory receptorsNK cellsNKG2Aplacentapregnancyuterine natural killer cells

Identifiers

PMID33887202
PMCPMC8211638
OpenAlexW3154734417

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.