Evidence map›Paper›PMID 26934296›Full record

ArticlePloS one2016

Cleavage of Type I Collagen by Fibroblast Activation Protein-α Enhances Class A Scavenger Receptor Mediated Macrophage Adhesion.

Anna Mazur, Emily Holthoff, Shanthi Vadali, Thomas Kelly, Steven R Post

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.5field-weighted citation impact, top 9% 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

48 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
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  15. Targeting FAPActa pharmaceutica Sinica. B · 2024
    Article
  16. Review
  17. Review
  18. [European journal of nuclear medicine and molecular imaging · 2023
    Article
  19. 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

5 authors at 1 institution in 1 country.

Anna MazurInterdisciplinary Biomedical Sciences Program, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.
Emily HolthoffInterdisciplinary Biomedical Sciences Program, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.
Shanthi VadaliDepartment of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.
Thomas KellyDepartment of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.
Steven R PostDepartment of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.
University of Arkansas for Medical Sciences · US

Funding

Fibroblast-macrophage interactions induce a tumor-promoting microenvironmentR21CA185691 · NCI · UNIV OF ARKANSAS FOR MED SCIS · PI KELLY, THOMAS JOSEPH, POST, STEVEN · 2016 to 2017
$356k
NCI NIH HHS R21 CA185691NCI NIH HHS R21CA185691
6 · The paper itself

Abstract

Pathophysiological conditions such as fibrosis, inflammation, and tumor progression are associated with modification of the extracellular matrix (ECM). These modifications create ligands that differentially interact with cells to promote responses that drive pathological processes. Within the tumor stroma, fibroblasts are activated and increase the expression of type I collagen. In addition, activated fibroblasts specifically express fibroblast activation protein-α (FAP), a post-prolyl peptidase. Although FAP reportedly cleaves type I collagen and contributes to tumor progression, the specific pathophysiologic role of FAP is not clear. In this study, the possibility that FAP-mediated cleavage of type I collagen modulates macrophage interaction with collagen was examined using macrophage adhesion assays. Our results demonstrate that FAP selectively cleaves type I collagen resulting in increased macrophage adhesion. Increased macrophage adhesion to FAP-cleaved collagen was not affected by inhibiting integrin-mediated interactions, but was abolished in macrophages lacking the class A scavenger receptor (SR-A/CD204). Further, SR-A expressing macrophages localize with activated fibroblasts in breast tumors of MMTV-PyMT mice. Together, these results demonstrate that FAP-cleaved collagen is a substrate for SR-A-dependent macrophage adhesion, and suggest that by modifying the ECM, FAP plays a novel role in mediating communication between activated fibroblasts and macrophages.

Indexed as

AnimalsBreastBreast NeoplasmsCell AdhesionCells, CulturedCollagen Type IEndopeptidasesFemaleFibroblast Activation Protein AlphaGelatinasesHumansIntegrinsMacrophagesMembrane ProteinsMice, Inbred C57BLRecombinant ProteinsCollagen Type IEndopeptidasesFibroblast Activation Protein AlphaGelatinasesIntegrinsMembrane ProteinsRecombinant ProteinsScavenger Receptors, Class ASerine Endopeptidases

Identifiers

PMID26934296
PMCPMC4774960
OpenAlexW2293765341

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.