Evidence map›Paper›PMID 33746964›Full record

ArticleFrontiers in immunology2021

Mitochondrial C3a Receptor Activation in Oxidatively Stressed Epithelial Cells Reduces Mitochondrial Respiration and Metabolism.

Masaaki Ishii, Gyda Beeson, Craig Beeson, Bärbel Rohrer

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

40 citing papers in PubMed, 52 citations in OpenAlex.

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  13. Inside job: Roles of intracellular C3.The Journal of allergy and clinical immunology · 2025
    Review
  14. Vaginal Clinical Isolates ofJournal of fungi (Basel, Switzerland) · 2025
    Article
  15. Article
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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

4 authors at 2 institutions in 1 country.

Masaaki IshiiDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC, United States.
Gyda BeesonDepartment of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States.
Craig BeesonDepartment of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States.
Bärbel RohrerDepartment of Ophthalmology, Medical University of South Carolina, Charleston, SC, United States.
Medical University of South Carolina · USRalph H. Johnson VA Medical Center · US

Funding

Alternative Pathway of Complement Activation in Age-Related Macular DegenerationR01EY019320 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ROHRER, BAERBEL · 2010 to 2014
$2.1M
ECT Implants for Factor H Delivery in Models of AMDR01EY024581 · NEI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ROHRER, BAERBEL · 2014 to 2016
$1.1M
RPE Cell Bystander Effects Contribute to AMD PathologyI01BX003050 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI ROHRER, BAERBEL · 2016 to 2024
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Complement Factor H Haplotypes and Smoking in Age-Related Macular DegenerationI01RX000444 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI Baerbel Rohrer · 2011 to 2026
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BLR&D Research Career Scientist Award for Dr. Barbel RohrerIK6BX004858 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI Baerbel Rohrer · 2020 to 2026
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BLRD VA I01 BX003050BLRD VA IK6 BX004858NEI NIH HHS R01 EY019320NEI NIH HHS R01 EY024581RRD VA I01 RX000444
6 · The paper itself

Abstract

Complement component 3 fragment C3a is an anaphylatoxin involved in promoting cellular responses important in immune response and host defense. Its receptor (C3a receptor, C3aR) is distributed on the plasma membrane; however, lysosomal localization in immune cells has been reported. Oxidative stress increases intracellular reactive oxygen species (ROS), and ROS activate complement signaling in immune cells and metabolic reprogramming. Here we tested oxidative stress and intracellular complement in mitochondrial dysfunction in RPE cells using high resolution live-cell imaging, and metabolism analysis in isolated mitochondria using Seahorse technology. While C3aR levels were unaffected by oxidative stress, its cell membrane levels decreased and mitochondrial (mt) localization increased. Trafficking was dependent on endocytosis, utilizing endosomal-to-mitochondrial cargo transfer. H

Indexed as

Energy MetabolismOxidative StressAdenosine TriphosphateCalciumCell LineCell RespirationEndocytosisEpithelial CellsHumansHydrogen PeroxideMitochondriaProtein TransportReceptors, ComplementRetinal Pigment EpitheliumAdenosine TriphosphateCalciumcomplement C3a receptorHydrogen PeroxideReceptors, Complementcalcium imagingcomplement C3a receptorendosomal targetingmitochondriaoxidative phosphorylationtranslocation

Identifiers

PMID33746964
PMCPMC7973370
OpenAlexW3135704083

What OpenQuestion holds

Textmetadata
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.