Evidence map›Paper›PMID 19171072›Full record

ArticleJournal of inflammation (London, England)2009

Upregulation of prolylcarboxypeptidase (PRCP) in lipopolysaccharide (LPS) treated endothelium promotes inflammation.

My-Linh Ngo, Fakhri Mahdi, Dhaval Kolte, Zia Shariat-Madar

Open access · goldAbstract read
In one paragraph

Article in Journal of inflammation (London, England), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
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  7. A comprehensive review of COVID-19 characteristics.Biological procedures online · 2020
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Prolyl carboxypeptidase and its inhibitors in metabolism.Trends in endocrinology and metabolism: TEM · 2013
    Article
  14. Article
  15. Enzymatic processing of angiotensin peptides by human glomerular endothelial cells.American journal of physiology. Renal physiology · 2012
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Highly selective hydrolysis of kinins by recombinant prolylcarboxypeptidase.Biochemical and biophysical research communications · 2011
    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

4 authors at 1 institution in 1 country.

My-Linh NgoSchool of Pharmacy, Department of Pharmacology, University of Mississippi, Oxford, MS, USA. Madar@olemiss.edu.
Fakhri Mahdi
Dhaval Kolte
Zia Shariat-Madar
University of Mississippi · US

Funding

SOURCING, ACQUISITION AND DATABASE COREP20RR021929 · NCRR · UNIVERSITY OF MISSISSIPPI · PI DOERKSEN, ROBERT J · 2006 to 2010
$11.1M
NCRR NIH HHS P20 RR021929
6 · The paper itself

Abstract

backgroundProlylcarboxypeptidase (Prcp) gene, along with altered PRCP and kallikrein levels, have been implicated in inflammation pathogenesis. PRCP regulates angiotensin 1-7 (Ang 1-7) - and bradykinin (BK) - stimulated nitric oxide production in endothelial cells. The mechanism through which kallikrein expression is altered during infection is not fully understood. Investigations were performed to determine the association between PRCP and kallikrein levels as a function of the upregulation of PRCP expression and the link between PRCP and inflammation risk in lipopolysaccharide (LPS)-induced endothelium activation.

methodsThe Prcp transcript expression in LPS-induced human umbilical vein endothelial cells (HUVEC) activation was determined by RT-PCR for mRNA. PRCP-dependent kallikrein pathway was determined either by Enzyme Linked ImmunoSorbent Assay (ELISA) or by biochemical assay.

resultsWe report that PRCP is critical to the maintenance of the endothelial cells, and its upregulation contributes to the risk of developing inflammation. Significant elevation in kallikrein was seen on LPS-treated HUVECs. The conversion of PK to kallikrein was blocked by the inhibitor of PRCP, suggesting that PRCP might be a risk factor for inflammation.

conclusionThe increased PRCP lead to a sustained production of bradykinin in endothelium following LPS treatment. This amplification may be an additional mechanism whereby PRCP promotes a sustained inflammatory response. A better appreciation of the role of PRCP in endothelium may contribute to a better understanding of inflammatory vascular disorders and to the development of a novel treatment.

Identifiers

PMID19171072
PMCPMC2639534
OpenAlexW1987437481

What OpenQuestion holds

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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.