Evidence map›Paper›PMID 24357721›Full record

ArticleJournal of cell science2014

Annexin A2 mediates secretion of collagen VI, pulmonary elasticity and apoptosis of bronchial epithelial cells.

Maryann Dassah, Dena Almeida, Rebecca Hahn, Paolo Bonaldo, Stefan Worgall, Katherine A Hajjar

Abstract read
In one paragraph

Article in Journal of cell science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

31 citing papers in PubMed, 47 citations in OpenAlex.

  1. Trial
  2. Article
  3. [Research progress on collagen secretion mechanisms in scarring].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Deficiency of IntegrinFrontiers in cell and developmental biology · 2022
    Article
  8. Article
  9. Review
  10. Annexin Animal Models-From Fundamental Principles to Translational Research.International journal of molecular sciences · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Observational
  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

6 authors at 2 institutions in 2 countries.

Maryann DassahDepartment of Cell and Developmental Biology, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA.
Dena Almeida
Rebecca Hahn
Paolo Bonaldo
Stefan Worgall
Katherine A Hajjar
Cornell University · USUniversity of Padua · IT

Funding

Vascular signaling via scavenger receptorsP01HL046403 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI HAJJAR, KATHERINE AMBERSON · 1991 to 2011
$26.7M
NEW THROMBOREGULATORY PROTEIN, ANNEXIN IIR01HL042493 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI HAJJAR, KATHERINE AMBERSON · 1989 to 2016
$4.9M
VASCULAR BIOCHEMISTRY AND ATHEROSCLEROSIST32HL007423 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI HAJJAR, KATHERINE AMBERSON · 1985 to 2009
$2.4M
Annexin 2 in AngiogenesisR01HL090895 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI HAJJAR, KATHERINE AMBERSON · 2008 to 2011
$1.7M
NHLBI NIH HHS HL042493NHLBI NIH HHS HL046403NHLBI NIH HHS HL090895NHLBI NIH HHS P01 HL046403NHLBI NIH HHS R01 HL042493NHLBI NIH HHS R01 HL090895NHLBI NIH HHS T32 HL007423NHLBI NIH HHS T32-HL007423-30
6 · The paper itself

Abstract

The annexins are an evolutionarily conserved family of phospholipid-binding proteins of largely unknown function. We observed that the AnxA2(-/-) lung basement membrane specifically lacks collagen VI (COL6), and postulated that ANXA2 directs bronchial epithelial cell secretion of COL6, an unusually large multimeric protein. COL6 serves to anchor cells to basement membranes and, unlike other collagens, undergoes multimerization prior to secretion. Here, we show that AnxA2(-/-) mice have reduced exercise tolerance with impaired lung tissue elasticity, which was phenocopied in Col6a1(-/-) mice. In vitro, AnxA2(-/-) fibroblasts retained COL6 within intracellular vesicles and adhered poorly to their matrix unless ANXA2 expression was restored. In vivo, AnxA2(-/-) bronchial epithelial cells underwent apoptosis and disadhesion. Immunoprecipitation and immunoelectron microscopy revealed that ANXA2 associates with COL6 and the SNARE proteins SNAP-23 and VAMP2 at secretory vesicle membranes of bronchial epithelial cells, and that absence of ANXA2 leads to retention of COL6 in a late-Golgi, VAMP2-positive compartment. These results define a new role for ANXA2 in the COL6 secretion pathway, and further show that this pathway establishes cell-matrix interactions that underlie normal pulmonary function and epithelial cell survival.

Indexed as

ApoptosisAnimalsAnnexin A2Basement MembraneBronchiCells, CulturedCell ShapeCell SurvivalCollagen Type VIElasticityEpithelial CellsExercise ToleranceGolgi ApparatusLungMiceMice, Inbred C57BLAnnexin A2Col6a1 protein, mouseCollagen Type VIVesicle-Associated Membrane Protein 2vesicle-associated membrane protein 2, mouseAnnexin A2Collagen VISecretion

Identifiers

PMID24357721
PMCPMC3924203
OpenAlexW2094102684

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.