Evidence map›Paper›PMID 10562330›Full record

ArticleThe Journal of physiology1999

Basolateral proteinase-activated receptor (PAR-2) induces chloride secretion in M-1 mouse renal cortical collecting duct cells.

M Bertog, B Letz, W Kong, M Steinhoff, M A Higgins, A Bielfeld-Ackermann, E Frömter, N W Bunnett, C Korbmacher

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

29 citing papers in PubMed, 76 citations in OpenAlex.

  1. Role of Mast Cells and Their Mediators in Chronic Kidney Diseases.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Protease-activated receptors in kidney disease progression.American journal of physiology. Renal physiology · 2016
    Review
  10. Article
  11. Article
  12. Ion channels in inflammation.Pflugers Archiv : European journal of physiology · 2011
    Review
  13. Matriptase activation, an early cellular response to acidosis.The Journal of biological chemistry · 2010
    Article
  14. Article
  15. Article
  16. Article
  17. Plasmin in nephrotic urine activates the epithelial sodium channel.Journal of the American Society of Nephrology : JASN · 2009
    Article
  18. Article
  19. Article
  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

9 authors at 3 institutions in 3 countries.

M BertogUniversity Laboratory of Physiology, Parks Road, Oxford OX1 3PT, UK.
B Letz
W Kong
M Steinhoff
M A Higgins
A Bielfeld-Ackermann
E Frömter
N W Bunnett
C Korbmacher
University of Oxford · GBUniversity of California, San Francisco · USGoethe University Frankfurt · DE

Funding

REGULATION OF CELLULAR RESPONSES TO NEUROPEPTIDESR37DK039957 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BUNNETT, NIGEL W · 2000 to 2010
$3.2M
REGULATION OF SIGNALING BY CELL SURFACE PROTEOLYSISR01DK043207 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BUNNETT, NIGEL W · 1993 to 2011
$1.7M
REGULATION OF SIGNALING BY CELL-SURFACE PROTEOLYSISR56DK043207 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BUNNETT, NIGEL W · 2010 to 2010
$348k
REGULATION OF CELLULAR RESPONSES TO NEUROPEPTIDESR01DK039957 · NIDDK · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BUNNETT, NIGEL W · 1987 to 1998
–
MODULATION OF LYMPHOCYTE FUNCTION BY SUBSTANCE PR01NS021710 · NINDS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI PAYAN, DONALD G · 1985 to 1997
–
NIDDK NIH HHS DK39957NIDDK NIH HHS DK43207NIDDK NIH HHS R01 DK039957NIDDK NIH HHS R01 DK043207NIDDK NIH HHS R37 DK039957NIDDK NIH HHS R56 DK043207NINDS NIH HHS NS21710Wellcome Trust
6 · The paper itself

Abstract

1. Using RT-PCR, Northern blot analysis, and immunocytochemistry, we confirmed renal expression of proteinase-activated receptor (PAR-2) and demonstrated its presence in native renal epithelial and in cultured M-1 mouse cortical collecting duct (CCD) cells. 2. We investigated the effects of a PAR-2 activating peptide (AP), corresponding to the tethered ligand that is exposed upon trypsin cleavage, and of trypsin on M-1 cells using patch-clamp, intracellular calcium (fura-2) and transepithelial short-circuit current (ISC) measurements. 3. In single M-1 cells, addition of AP elicited a concentration-dependent transient increase in the whole-cell conductance. Removal of extracellular Na+ had no effect while removal of Cl- prevented the stimulation of outward currents. The intracellular calcium concentration increased significantly upon application of AP while a Ca2+-free pipette solution completely abolished the electrical response to AP. 4. In confluent monolayers of M-1 cells, apical application of AP had no effect on ISC whereas subsequent basolateral application elicited a transient increase in ISC. This increase was not due to a stimulation of electrogenic Na+ absorption since the response was preserved in the presence of amiloride. 5. The ISC response to AP was reduced in the presence of the Cl- channel blocker diphenylamine-2-carboxylic acid on the apical side and abolished in the absence of extracellular Cl-. 6. Trypsin elicited similar responses to those to AP while application of a peptide (RP) with the reverse amino acid sequence of AP had no effect on whole-cell currents or ISC. 7. In conclusion, our data suggest that AP or trypsin stimulates Cl- secretion by Ca2+-activated Cl- channels in M-1 CCD cells by activating basolateral PAR-2.

Indexed as

Amino Acid SequenceAnimalsBase SequenceCell LineChloridesDNA PrimersEpithelial CellsImmunohistochemistryIntracellular FluidIon TransportKidney CortexKidney Tubules, CollectingLigandsMiceMolecular Sequence DataReceptor, PAR-2ChloridesDNA PrimersLigandsReceptor, PAR-2Receptors, ThrombinTrypsin

Identifiers

PMID10562330
PMCPMC2269634
OpenAlexW2033181607

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.