Evidence map›Paper›PMID 34873775›Full record

ArticleAmerican journal of reproductive immunology (New York, N.Y. : 1989)2022

Functional role and regulation of permeability-glycoprotein (P-gp) in the fetal membrane during drug transportation.

Ananthkumar Kammala, Meagan Benson, Esha Ganguly, Lauren Richardson, Ramkumar Menon

Open access · greenAbstract read
In one paragraph

Article in American journal of reproductive immunology (New York, N.Y. : 1989), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
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  5. Clinical pharmacology : advances and applications · 2025
    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

5 authors at 1 institution in 1 country.

Ananthkumar KammalaDepartment of Obstetrics & Gynecology, Division of Basic and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA.ORCID 0000-0001-5300-2083
Meagan BensonDepartment of Obstetrics & Gynecology, Division of Basic and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
Esha GangulyDepartment of Obstetrics & Gynecology, Division of Basic and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
Lauren RichardsonDepartment of Obstetrics & Gynecology, Division of Basic and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
Ramkumar MenonDepartment of Obstetrics & Gynecology, Division of Basic and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA.ORCID 0000-0001-9213-6105
The University of Texas Medical Branch at Galveston · US

Funding

Intercellular interactions define cell migrations and transitions that maintain fetal membrane homeostasisR01HD100729 · NICHD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI HAN, ARUM, MENON, RAMKUMAR · 2020 to 2024
$2.6M
Developing extracellular vesicle based therapeutics against pre-term birth through the use of maternal-fetal interface on a chipUG3TR003283 · NCATS · TEXAS ENGINEERING EXPERIMENT STATION · PI HAN, ARUM, MENON, RAMKUMAR · 2020 to 2021
$1.5M
NCATS NIH HHS UG3 TR003283NICHD NIH HHS R01 HD100729
6 · The paper itself

Abstract

objectiveNa

methodsFetal membranes from normal, term cesareans were screened for P-gp by immunohistochemistry (IHC). Chorionic trophoblast (CTC), with the highest expression of P-gp among fetal membrane cells, was further used to test interactive properties between NHERF-1 and P-gp. BeWo (placental trophoblast cell line) cells were used as a control. Immunoprecipitation (IP) of CTC lysates using the P-gp antibody followed by western blot determined co-precipitation of NHERF-1. Silencing NHERF-1 using small interfering RNA further tested the relevance of NHERF-1 in P-gp expression and function in CTC and BeWo cells. NHERF-1 regulation of P-gp's efflux function (drug resistance) was further tested using the ENZO

resultsImmunohistochemistry localized, and western blot confirmed P-gp in human fetal membranes, primarily in the CTC with limited expression in the amnion epithelial layer. P-gp expression in the membranes was similar to that seen in the placenta. IP data showed P-gp co-precipitating with NHERF1. Silencing of NHERF-1 resulted in significant drug resistance suggesting P-gp function mediated through NHERF1 in CTCs.

conclusionProinflammatory mediator NHERF-1 regulates P-gp and control drug transportation across the fetal membranes. Our data suggest a novel functional role for fetal membranes during pregnancy. Besides the placenta, fetal membranes may also regulate efflux of materials at the feto-maternal interface and control drug transport during pregnancy.

Indexed as

Extraembryonic MembranesPlacentaFemaleGlycoproteinsHumansPermeabilityPregnancyTrophoblastsGlycoproteinsdrug transportfetal membraneNHERF-1P-gp

Identifiers

PMID34873775
PMCPMC8776608
OpenAlexW4200427142

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.