Evidence map›Paper›PMID 22566571›Full record

ArticleJournal of leukocyte biology2012

Receptor cleavage and P-selectin-dependent reduction of leukocyte adhesion in the spontaneously hypertensive rat.

Angela Y Chen, Jessica N Ha, Frank A Delano, Geert W Schmid-Schönbein

Abstract read
In one paragraph

Article in Journal of leukocyte biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. IGF-1 receptor cleavage in hypertension.Hypertension research : official journal of the Japanese Society of Hypertension · 2018
    Article
  7. Mechanisms of I/R-Induced Endothelium-Dependent Vasodilator Dysfunction.Advances in pharmacology (San Diego, Calif.) · 2018
    Review
  8. A high-salt diet enhances leukocyte adhesion in association with kidney injury in young Dahl salt-sensitive rats.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
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.

Angela Y ChenDepartment of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA 92093-0412, USA. ayc015@ucsd.edu
Jessica N Ha
Frank A Delano
Geert W Schmid-Schönbein

Funding

STRUCTURE/FUNCTION OF THE MICROCIRCULATIOMR01HL010881 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SCHMID-SCHOENBEIN, GEERT W. · 1985 to 2011
$3.1M
NHLBI NIH HHS HL-10881NHLBI NIH HHS R01 HL010881
6 · The paper itself

Abstract

The SHR, a genetic model for hypertension and the metabolic syndrome, has attenuated leukocyte adhesion to the postcapillary endothelium by an unknown mechanism. Based on recent evidence of elevated levels of MMPs in plasma and on microvascular endothelium of the SHR with cleavage of several receptor types, we hypothesize that the reduced leukocyte-endothelial interaction is a result of enhanced proteolytic cleavage of P-selectin on the postcapillary endothelium and PSGL-1 on leukocytes. The attenuated rolling interactions of SHR leukocytes with the endothelium were restored by chronic treatment with a broad-spectrum MMP inhibitor (CGS) for 24 weeks. The SHR MMP levels, in plasma and mesentery, as well as the systolic blood pressure, decreased significantly with treatment. In the SHR mesentery, labeling of P-selectin in the postcapillary venules by immunohistochemistry demonstrated, on average, a 31% lower extracellular P-selectin density compared with the normotensive WKY. A significantly lower extracellular PSGL-1 density on the membranes of SHR neutrophils compared with the WKY also supported our hypothesis. In vivo stimulation of the mesenteric postcapillary venules with histamine demonstrated that the SHR had an attenuated response, as measured by leukocyte rolling velocity on the endothelium. The reduced P-selectin and PSGL-1 density, on SHR postcapillary endothelium and on SHR leukocytes, respectively, was restored significantly by chronic MMP inhibition. The impaired ability of SHR leukocytes to reduce rolling velocity upon inflammatory stimulation led to fewer firmly adhered leukocytes to the endothelium as a contributor to immune suppression.

Indexed as

AnimalsBlood PressureBlotting, WesternCell AdhesionCell CommunicationEndothelium, VascularEnzyme-Linked Immunosorbent AssayFlow CytometryHypertensionLeukocyte RollingLeukocytesMaleMatrix MetalloproteinasesMembrane GlycoproteinsNeutrophilsP-SelectinMatrix MetalloproteinasesMembrane GlycoproteinsP-SelectinP-selectin ligand protein

Identifiers

PMID22566571
PMCPMC3382314

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.