Evidence map›Paper›PMID 20525804›Full record

ArticleAmerican journal of respiratory cell and molecular biology2011

Cigarette smoke inhibits engulfment of apoptotic cells by macrophages through inhibition of actin rearrangement.

Naoto Minematsu, Anna Blumental-Perry, Steven D Shapiro

Abstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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.

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

27 citing papers in PubMed.

  1. Modeling the Exposome in Murine Cardiovascular Disease.JACC. Basic to translational science · 2026
    Review
  2. Review
  3. Review
  4. Article
  5. Efferocytosis and Respiratory Disease.International journal of molecular sciences · 2023
    Review
  6. No smoke without fire: the impact of cigarette smoking on the immune control of tuberculosis.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Observational
  18. Article
  19. MFG-E8, a clearance glycoprotein of apoptotic cells, as a new marker of disease severity in chronic obstructive pulmonary disease.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2015
    Article
  20. Article
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.

Naoto MinematsuDepartment of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Anna Blumental-Perry
Steven D Shapiro

Funding

Genetic and Environmental Factors--COPD ExacerbationsR01HL082541 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SHAPIRO, STEVEN D · 2005 to 2009
$2.9M
NHLBI NIH HHS R01 HL082541
6 · The paper itself

Abstract

Exposure to cigarette smoke (CS) was shown to impair the capacity of macrophages to clear bacteria and apoptotic cells. Here, we show that both the exposure of macrophages to cigarette smoke extract (CSE) in vitro and an acute single exposure to CS in vivo impair the macrophage clearance of apoptotic polymorphonuclear leukocytes (PMNs). Upon longer periods of exposure to smoke in vivo (4-12 weeks), the impaired capacity of macrophages to clear apoptotic cells persisted after the cessation of smoking, with slow recovery to normality observed 4 weeks later. With respect to the mechanism by which CS impairs the macrophage uptake of apoptotic PMNs, we did not detect altered surface expression of receptors associated with apoptotic cell clearance. We did observe the impaired phosphorylation of the guanine nucleotide exchange factor Vav1 and the downstream inhibition of Ras-related C3 botulinum toxin substrate 1 (Rac1) activation. Consistent with these findings, CS impaired the macrophage cytoskeletal changes observed after stimulation with apoptotic cells. A loss of actin occurred at the leading edge, manifested as impaired ruffling of the cell membrane and a decreased capacity to engulf apoptotic cells. The inability to clear PMNs would lead to a greater release of destructive PMN products, and would diminish the reparative phenotype induced by the macrophage clearance of apoptotic cells.

Indexed as

ApoptosisPhagocytosisActinsAnimalsCell MovementEnzyme ActivationFlow CytometryHumansMacrophagesMiceMice, Inbred C57BLMonocytesNeutrophilsPhosphorylationProto-Oncogene Proteins c-vavPulmonary AlveoliActinsProto-Oncogene Proteins c-vavrac1 GTP-Binding ProteinVav1 protein, mouse

Identifiers

PMID20525804
PMCPMC3095920

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.