Cited by 64Renin-Angiotensin System StudiesCoagulation, Bradykinin, Polyphosphates, and AngioedemaRenal Diseases and Glomerulopathies

Renin and kallikrein in connecting tubule of mouse

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Rohrwasser, Andreas, Ishigami, Tomoaki, Gociman, Barbu, Lantelme, Pierre, Morgan, Terry, Cheng, Tong, Hillas, Elaine, Zhang, Shuhua +4 more·2003·Kidney International

Abstract

Background The observation of renin expression in connecting tubule, a segment that also expresses tissue kallikrein (KLK-1), raises two questions. Are the genes expressed in the same or in different cells of connecting tubule? Does this topography support the hypothesis that KLK-1 activates prorenin or is it more likely that it affords coordinated gene regulation?Methods Renin and KLK-1 were examined by immunostaining and in situ hybridization. Renin activation by KLK-1 was investigated in vitro. In vivo, excretion of prorenin and active renin was compared in mice homozygous for targeted inactivation of KLK-1 (TK(-/-)) and normal littermates (TK(+/+)).Results Using in situ immunostaining for renin and in situ hybridization for KLK-1 mRNA, we found that connecting tubule cells expressing renin also expressed KLK-1. We confirmed in vitro activation of prorenin by KLK-1, but found no difference in the ratio of active renin to prorenin in urine of TK(-/-) and TK(+/+) animals. Compared to TK(+/+) controls, TK(-/-) mice exhibited significantly lower 24-hour excretion of prorenin (5.05 +/- 1.16 mg Ang I/hour vs. 9.39 +/- 1.96 mg Ang I/hour, P < 0.05) and active renin (1.98 +/- 0.25 mg Ang I/hour vs. 3.58 +/- 0.39 mg Ang I/hour, P < 0.05), with no difference in either urine volumes or plasma renin concentrations.Conclusion Direct interaction between renin and KLK-1, not ruled out in vitro, is not supported in vivo. By contrast, lower excretion of active renin and prorenin in TK(-/-) compared to TK(+/+) suggest coordinated regulation of the two proteins in their participation to collecting duct function.

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Crossref · 10.1046/j.1523-1755.2003.00302.x

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Authors
Rohrwasser, A., Ishigami, T., Gociman, B., Lantelme, P., Morgan, T., Cheng, T., Hillas, E., Zhang, S., Ward, K., Bloch-Faure, M. A. Y., Meneton, P., & Lalouel, J. M.
Affiliations
University of Utah (US)
Corresponding author
Lalouel, J.M.
Venue
Kidney International
Publisher
Elsevier BV
Published
2003-12
Volume
64
Issue
6
Pages
2155-2162
ISSN
0085-2538 (ISSN-L)
OpenAlex
W1985546355
Cited by
64
References
33
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2022: 3 · 2021: 1 · 2020: 4 · 2018: 2 · 2017: 2 · 2016: 1 · 2015: 7 · 2014: 6 · 2013: 5 · 2012: 4
FWCI
1.10
Type
journal article
Language
en
Open access
Locations
  • Kidney International (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ipsen
  • National Institutes of Health (5r01hl045325-13)
  • National Heart, Lung, and Blood Institute (HL55000, HL 45325, P50HL055000)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Genetics › Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Health Sciences › Medicine › Nephrology › Renal Diseases and Glomerulopathies
Keywords
renin, tissue kallikrein, connecting tubule, prorenin, renin activation, angiotensin I, collecting duct, gene expression regulation, kallikrein-kinin system
MeSH terms
Animals, Cricetinae, Immunohistochemistry, Kidney Tubules, Collecting, Male, Mice, Inbred C57BL, Renin, Staining and Labeling, CHO Cells, In Situ Hybridization, Mice, Knockout, Reverse Transcriptase Polymerase Chain Reaction, Tissue Kallikreins, Mice

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