Evidence map›Paper›PMID 33715911›Full record

ReviewHuman immunology2021

Contribution of macrophages to fetomaternal immunological tolerance.

P Parasar, N Guru, N R Nayak

Registry-linked trialAbstract readReview
In one paragraph

Review in Human immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07120958 (What Impact Does Uterine Immunity Have on the Success of Euploid Thawed Embryos?), which is not on this map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–field-weighted citation impact
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.

NCT07120958 enrolling by invitationnot on this mapstarted 2025, after this paper: background citation

What Impact Does Uterine Immunity Have on the Success of Euploid Thawed Embryos?

TypeobservationalSponsorMomo FertilifeRan2025 to 2026Enrolled30ConditionsInfertility Assisted Reproductive Technology
3 · Its place in the literature

Who cites it

34 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. The Placenta as an Immunological Environment.British journal of biomedical science · 2025
    Review
  16. Article
  17. Review
  18. Immunologic aspects of preeclampsia.AJOG global reports · 2024
    Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

P ParasarDepartment of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, United States; Henry Ford Hospital, Detroit, MI 48202, United States. Electronic address: pparasa1@hfhs.org.
N GuruDepartment of Infectious Diseases, School of Medicine, Wayne State University, Detroit, MI 48202, United States.
N R NayakDepartment of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, United States; Department of Obstetrics and Gynecology, University of Missouri, Kansas City, MO 64108, United States.

Funding

VEGF signaling in placental development and diseaseR01HD088549 · NICHD · WAYNE STATE UNIVERSITY · PI NAYAK, NIHAR R · 2017 to 2021
$1.6M
NICHD NIH HHS R01 HD088549
6 · The paper itself

Abstract

The semi-allogeneic fetus develops in a uniquely immune tolerant environment within the uterus. For successful pregnancy, both the innate and adaptive immune systems must favor acceptance of the fetal allograft. Macrophages are the second most abundant immune cells after natural killer (NK) cells in the decidua. In coordination with decidual NK cells and dendritic cells, macrophages aid in implantation, vascular remodeling, placental development, immune tolerance to placental cells, and maintenance of tissue homeostasis at the maternal-fetal interface. Decidual macrophages show the classical activated (M1) and alternatively activated (M2) phenotypes under the influence of the local milieu of growth factors and cytokines, and appropriate temporal regulation of the M1/M2 switch is vital for successful pregnancy. Disturbances in the mechanisms that control the M1/M2 balance and associated functions during pregnancy can trigger a spectrum of pregnancy complications ranging from preeclampsia and fetal growth restriction to preterm delivery. This review addresses various mechanisms of tolerance, focusing on the basic biology of macrophages, their plasticity and polarization, and their protective roles at the immune-privileged maternal-fetal interface, including direct and indirect roles in promoting fetomaternal immune tolerance.

Indexed as

AnimalsDeciduaFemaleHistocompatibility, Maternal-FetalHumansImmune ToleranceMacrophagesPregnancyPregnancy ComplicationsTh1-Th2 BalanceDeciduaImmune toleranceMacrophagesMaternal-fetal interfacePlacentaPregnancy

Identifiers

PMID33715911
PMCPMC8062290

What OpenQuestion holds

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Registered trials

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.