Evidence map›Paper›PMID 8014121›Full record

ArticleJournal of anatomy1994

Ontogeny and distribution of Fc gamma receptors in the human placenta. Transport or immune surveillance?

N A Bright, C D Ockleford, M Anwar

Abstract read
In one paragraph

Article in Journal of anatomy, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 56 citations in OpenAlex.

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  17. Epithelial transcytosis of immunoglobulins.Journal of mammary gland biology and neoplasia · 1998
    Review
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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 at 1 institution in 1 country.

N A BrightDepartment of Preclinical Sciences, University of Leicester, UK.
C D Ockleford
M Anwar
University of Leicester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human fetus acquires maternal IgG via the chorioallantoic placenta. Utilising antibodies against 3 characterised subtypes of IgG receptor (Fc gamma R) expressed by human leucocytes, we show by confocal immunofluorescence microscopy that these molecules are also expressed by cells of the placenta. Fc gamma RI (CD64) is expressed by undifferentiated mesenchymal or fibroblast cells of 1st trimester and term chorionic villi. Punctate immunoreactivity for Fc gamma RII (CDw32) is found on capillary endothelial cells of term and 1st trimester villi. Fc gamma RIII (CD16) expression is observed in the trophoblast surrounding chorionic villi that forms the functional 'barrier' between mother and fetus. In 1st trimester villi this receptor is associated with a population of marginated vesicular inclusions of the syncytiotrophoblast. In term villi the receptor is concentrated in the apex of the syncytiotrophoblast, suggesting a possible role in the maternofetal transmission of passive immunity. All 3 subtypes of receptor are expressed by Hofbauer cells. We have been unable to demonstrate these receptors in cytotrophoblast cells. Results obtained using immunofluorescence and immunoelectron microscopic detection of endogenous IgG are consistent with the hypothesis that IgG is internalised into clathrin-coated pits and vesicles. Endogenous IgG was not demonstrable in cytotrophoblast cells. The significance of our inability to demonstrate IgG or specific receptor molecules for IgG in cytotrophoblast cells, and possible roles of Fc gamma receptor-bearing cells of the placenta are discussed.

Indexed as

Chorionic VilliFemaleFibroblastsFluorescent Antibody TechniqueHumansImmunoglobulin GMesodermMicroscopy, ImmunoelectronPlacentaPregnancyReceptors, IgGTrophoblastsImmunoglobulin GReceptors, IgG

Identifiers

PMID8014121
PMCPMC1259990
OpenAlexW103752971

What OpenQuestion holds

Textmetadata
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.