Evidence map›Paper›PMID 17102904›Full record

ArticleMolecular and cellular biochemistry2007

Chymase increases glomerular albumin permeability via protease-activated receptor-2.

Ram Sharma, Vidudala Prasad, Ellen T McCarthy, Virginia J Savin, Kottarappat N Dileepan, Daniel J Stechschulte, Elias Lianos, Thomas Wiegmann, Mukut Sharma

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular and cellular biochemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.2field-weighted citation impact, top 45% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Protease-activated receptors and itch.Handbook of experimental pharmacology · 2015
    Review
  7. Coagulation, protease-activated receptors, and viral myocarditis.Journal of cardiovascular translational research · 2014
    Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Mast cells regulate homeostatic intestinal epithelial migration and barrier function by a chymase/Mcpt4-dependent mechanism.Proceedings of the National Academy of Sciences of the United States of America · 2009
    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

9 authors at 4 institutions in 1 country.

Ram SharmaRenal Research Laboratory, Kansas City VA Medical Center, 4801 Linwood Boulevard, Kansas City, MO 64128, USA. Ram.Sharma2@med.va.gov
Vidudala Prasad
Ellen T McCarthy
Virginia J Savin
Kottarappat N Dileepan
Daniel J Stechschulte
Elias Lianos
Thomas Wiegmann
Mukut Sharma
Kansas City VA Medical Center · USUniversity of Kansas Medical Center · USMedical College of Wisconsin · USJohnson University · US

Funding

CYTOCHROME P-450 AND GLOMERULAR PROTEIN PERMEABILITYR01DK064969 · NIDDK · UNIVERSITY OF KANSAS MEDICAL CENTER · PI MCCARTHY, ELLEN T · 2005 to 2010
$1.7M
NIDDK NIH HHS R01 DK 064969
6 · The paper itself

Abstract

Increased infiltration of the kidney by mast cells is associated with proteinuria, and interstitial fibrosis in various renal diseases. Mast cells produce serine proteases including tryptase and chymase (MCC) that act via protease-activated receptors (PARs) to induce synthesis of fibrogenic cytokines by renal cells. In the present study, we investigated direct effect of MCC and role of PARs on glomerular albumin permeability (P(alb)). Isolated rat glomeruli were incubated with MCC (0.1, 1, 10, and 100 ng/ml) for 5-30 min in presence or absence of PAR-1 and PAR-2 blocking antibodies. P(alb) was determined from the change in glomerular volume in response to an albumin oncotic gradient. The effect of direct activation of PARs on P(alb) was verified by incubating glomeruli with synthetic hexapeptide known to activate PAR-1 and PAR-2. MCC increased P(alb) of isolated rat glomeruli in a dose- and time-dependent manner. Blocking PAR-2 prevented MCC-mediated increase in P(alb). RT-PCR analysis of glomerular RNA demonstrated the presence of constitutively expressed PAR-1, -2, and -3 and low levels of PAR-4. In addition, direct activation of PAR-2 by hexapeptide SLIGKV increased P(alb) comparable to MCC, whereas PAR-1 activation by TFLLRN had no effect on P(alb). Our results document that MCC induces increase in P(alb) and that this effect is mediated through PAR-2. MCC may also play a role in renal scarring. We propose that inhibiting MCC activity or blocking the activation of PAR-2 may provide new targets for therapy in renal diseases.

Indexed as

AlbuminsAnimalsChymasesDose-Response Relationship, DrugGene Expression RegulationIn Vitro TechniquesKidney GlomerulusMaleModels, BiologicalPermeabilityProtein IsoformsRatsRats, Sprague-DawleyReceptor, PAR-2Receptors, Proteinase-ActivatedRNA, MessengerAlbuminsChymasesProtein IsoformsReceptor, PAR-2Receptors, Proteinase-ActivatedRNA, Messenger

Identifiers

PMID17102904
OpenAlexW1979532304

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.