Evidence map›Paper›PMID 26075824›Full record

ArticleThe Journal of clinical investigation2015

Apoptotic cells trigger a membrane-initiated pathway to increase ABCA1.

Aaron M Fond, Chang Sup Lee, Ira G Schulman, Robert S Kiss, Kodi S Ravichandran

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

75 citing papers in PubMed, 113 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. More Than a Cleanup Crew: The Expanding Biology of Efferocytosis.Arteriosclerosis, thrombosis, and vascular biology · 2026
    Review
  5. Article
  6. Anti-Atherogenic Mechanisms and Therapies.Current atherosclerosis reports · 2025
    Review
  7. Article
  8. Dendritic cell maturation in cancer.Nature reviews. Cancer · 2025
    Review
  9. Review
  10. Article
  11. Article
  12. Metabolic reprogramming in efferocytosis.Frontiers in cell and developmental biology · 2025
    Review
  13. Review
  14. Review
  15. Review
  16. Efferocytosis in atherosclerosis.Nature reviews. Cardiology · 2024
    Review
  17. Article
  18. Immunometabolism in atherosclerotic disorders.Nature cardiovascular research · 2024
    Review
  19. Review
  20. Review

15 more citing papers are in PubMed but not listed here.

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.

Aaron M Fond
Chang Sup Lee
Ira G Schulman
Robert S Kiss
Kodi S Ravichandran
McGill University Health Centre · CA

Funding

Women's Oncology Program - WONP30CA044579 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Thomas P. Loughran · 1987 to 2026
$72.1M
Role of Pannexins in Vascular Smooth Muscle CellsP01HL120840 · NHLBI · UNIVERSITY OF VIRGINIA · PI BAYLISS, DOUGLAS A., RAVICHANDRAN, KODI S · 2014 to 2023
$24.0M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007267 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI GARCIA-BLANCO, MARIANO A. · 1985 to 2024
$13.4M
INTERDISCIPLINARY TRAINING PROGRAM IN IMMUNOLOGYT32AI007496 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Michael G. Brown, Coleen A McNamara · 1995 to 2026
$10.2M
Role of ELMO and DOCK 180 in signaling to engulfmentR01GM064709 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LORENZ, ULRIKE, RAVICHANDRAN, KODI S · 2003 to 2016
$3.6M
NCI NIH HHS P30 CA044579NHLBI NIH HHS HL120840NHLBI NIH HHS P01 HL120840NIAID NIH HHS T32 AI007496NIGMS NIH HHS GM064709NIGMS NIH HHS R01 GM064709NIGMS NIH HHS T32 GM007267
6 · The paper itself

Abstract

Macrophages clear millions of apoptotic cells daily and, during this process, take up large quantities of cholesterol. The membrane transporter ABCA1 is a key player in cholesterol efflux from macrophages and has been shown via human genetic studies to provide protection against cardiovascular disease. How the apoptotic cell clearance process is linked to macrophage ABCA1 expression is not known. Here, we identified a plasma membrane-initiated signaling pathway that drives a rapid upregulation of ABCA1 mRNA and protein. This pathway involves the phagocytic receptor brain-specific angiogenesis inhibitor 1 (BAI1), which recognizes phosphatidylserine on apoptotic cells, and the intracellular signaling intermediates engulfment cell motility 1 (ELMO1) and Rac1, as ABCA1 induction was attenuated in primary macrophages from mice lacking these molecules. Moreover, this apoptotic cell-initiated pathway functioned independently of the liver X receptor (LXR) sterol-sensing machinery that is known to regulate ABCA1 expression and cholesterol efflux. When placed on a high-fat diet, mice lacking BAI1 had increased numbers of apoptotic cells in their aortic roots, which correlated with altered lipid profiles. In contrast, macrophages from engineered mice with transgenic BAI1 overexpression showed greater ABCA1 induction in response to apoptotic cells compared with those from control animals. Collectively, these data identify a membrane-initiated pathway that is triggered by apoptotic cells to enhance ABCA1 within engulfing phagocytes and with functional consequences in vivo.

Indexed as

Adaptor Proteins, Signal TransducingAngiogenic ProteinsAnimalsApoptosisATP Binding Cassette Transporter 1Cell MembraneCholesterolFemaleHumansJurkat CellsLipid MetabolismLiver X ReceptorsMacrophagesMiceMice, Inbred C57BLMice, KnockoutAbca1 protein, mouseAdaptor Proteins, Signal TransducingAdgrb1 protein, mouseAngiogenic ProteinsATP Binding Cassette Transporter 1CholesterolELMO1 protein, mouseLiver X ReceptorsNeuropeptidesOrphan Nuclear Receptorsrac1 GTP-Binding ProteinRac1 protein, mouseRNA, Messenger

Identifiers

PMID26075824
PMCPMC4563683
OpenAlexW1754447511

What OpenQuestion holds

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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.