Cited by 25Signaling Pathways in DiseaseNitric Oxide and Endothelin EffectsCalpain Protease Function and Regulation

Protein Never in Mitosis Gene A Interacting-1 (PIN1) regulates degradation of inducible nitric oxide synthase in endothelial cells

Liu, Tongzheng, Huang, Yongcheng, Likhotvorik, Rostislav I., Keshvara, Lakhu, Hoyt, Dale G.·2008·American Journal of Physiology-Cell Physiology

Abstract

The peptidyl-proline isomerase Protein Never in Mitosis Gene A Interacting-1 (PIN1) increases the level or activity of several transcription factors that can induce the inducible nitric oxide (NO) synthase (iNOS). PIN1 can also regulate mRNA and protein turnover. Here, the effect of depletion of PIN1 on induction of iNOS by Escherichia coli endotoxin (LPS) and interferon-gamma (IFNgamma) in murine aortic endothelial cells (MAEC) was determined. Suppression of PIN1 by 85% with small hairpin RNA enhanced the induction of NO and iNOS protein by LPS-IFNgamma. There was no effect on induction of iNOS mRNA, suggesting a posttranscriptional effect. The enhanced levels of iNOS protein were functionally significant since LPS-IFNgamma was cytotoxic to MAEC lacking PIN1 but not MAEC harboring an inactive control construct, and because cytotoxicity was blocked by the NO synthase inhibitor N(omega)-nitro-L-arginine methyl ester. Consistent with posttranscriptional action, knockdown of PIN1 increased the stability of iNOS protein in cycloheximide-treated cells. Furthermore, loss of iNOS was blocked by the calpain inhibitor carbobenzoxy-valinyl-phenylalaninal but not by the selective proteasome inhibitor epoxomicin. Immunoprecipitation indicated that PIN1 can interact with iNOS. Pull down of iNOS with a wild-type glutathione-S-transferase-PIN1 fusion protein, but not with a mutant of the amino terminal phospho-(serine/threonine)-proline binding WW domain of PIN1, indicated that this domain…

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Crossref · 10.1152/ajpcell.00366.2007

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  • Pin1 regulates degradation of inducible nitric oxide synthase and inhibits the production of LPS-induced nitric oxide in murine aortic endothelial cells (MAEC).

    “Pin1 regulates degradation of inducible nitric oxide synthase and inhibits the production of LPS-induced nitric oxide in murine aortic endothelial cells (MAEC) [8].”

    From Prolyl Isomerase Pin1 Protects Mice from Endotoxin Shock (2011) · cites this paper as [8]

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Authors
Liu, T., Huang, Y., Likhotvorik, R. I., Keshvara, L., & Hoyt, D. G.
Affiliations
The Ohio State University (US)
Venue
American Journal of Physiology-Cell Physiology
Published
2008-09
Volume
295
Issue
3
Pages
C819-C827
ISSN
  • 0363-6143 (ISSN-L)
  • 1522-1563
OpenAlex
W2018409037
Cited by
25
References
51
Citations by year
2024: 3 · 2021: 1 · 2018: 2 · 2017: 2 · 2016: 1 · 2014: 3 · 2013: 3 · 2012: 2
FWCI
1.09
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Cell Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Calpain Protease Function and Regulation
Keywords
Pin1, peptidyl-prolyl isomerase, inducible nitric oxide synthase, endothelial cells, endotoxin, interferon-gamma, post-transcriptional regulation, protein stability, WW domain, nitric oxide synthase inhibitors, cytotoxicity
MeSH terms
NIMA-Interacting Peptidylprolyl Isomerase, Animals, Calpain, Cell Survival, Cells, Cultured, Dipeptides, Enzyme Inhibitors, Interferon-gamma, Lipopolysaccharides, Nitric Oxide, Oligopeptides, Protein Binding, Protein Processing, Post-Translational, Recombinant Proteins, RNA, Messenger, Time Factors, NG-Nitroarginine Methyl Ester, Peptidylprolyl Isomerase, Escherichia coli Proteins, RNA Interference, RNA, Small Interfering, Endothelial Cells, Proteasome Endopeptidase Complex, Mice, Nitric Oxide Synthase Type II, Proteasome Inhibitors

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