Cited by 249Cell death mechanisms and regulationProtein Tyrosine PhosphatasesNF-κB Signaling Pathways

Correlation between Sustained c-Jun N-terminal Protein Kinase Activation and Apoptosis Induced by Tumor Necrosis Factor-α in Rat Mesangial Cells

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Guo, Yan-Lin, Baysal, Kemal, Kang, Baobin, Yang, Li-Jun, Williamson, John R.·1998·Journal of Biological Chemistry

Abstract

Rat mesangial cells are normally resistant to tumor necrosis factor-alpha (TNF-alpha)-induced apoptosis. In this report we show that the cells can be made susceptible to the apoptotic effect of TNF-alpha when pretreated with actinomycin D, cycloheximide, or vanadate. c-Jun N-terminal protein kinase (JNK) has been thought to mediate apoptotic processes elicited by some stimuli, but its involvement in TNF-alpha-induced apoptosis has been controversial. JNK activation was investigated under conditions where the mesangial cells were either resistant or susceptible to TNF-alpha-induced apoptosis. TNF-alpha alone stimulated a single transient JNK activity peak. However, when the cells were pretreated with actinomycin D or cycloheximide, TNF-alpha stimulated a second sustained JNK activity peak. When the cells were pretreated with the phosphatase inhibitor vanadate, TNF-alpha-induced JNK activation was greatly prolonged. In all three cases, a sustained JNK activation was associated with the initiation of apoptosis. Our data suggest that a sustained activation of JNK induced by these reagents may be associated with blocking the expression of a phosphatase that inactivates JNK. Further studies reveal that the expression of mitogen-activated protein kinase phosphatase-1 (MKP-1) was induced by TNF-alpha, indicating that MKP-1 may be involved in protecting the cells from apoptosis by preventing a prolonged activation of JNK under normal conditions. Additional studies showed that extracellular signal-regulated protein kinase activation stimulated by TNF-alpha was unlikely to contribute to the resistance of mesangial cells to TNF-alpha cytotoxicity.

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  • Prolonged activation of SAPK can lead to apoptosis.

    “Although the SAPKs can also mediate proliferative responses, prolonged activation of these SAPK can lead to apoptosis (80, 162).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [162]

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  1. Goillot, E., Raingeaud, J., Ranger, A., Tepper, R. I., Davis, R. J., Harlow, E., and Sanchez, I. (1997) Proc. Natl. Acad. Sci. U. S. A. 94, 3302-3307

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Authors
Guo, Y.-L., Baysal, K., Kang, B., Yang, L.-J., & Williamson, J. R.
Affiliations
University of Pennsylvania (US)
Corresponding author
Williamson, John R.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1998-02
Volume
273
Issue
7
Pages
4027-4034
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1993170284
Cited by
249
References
51
Citations by year
2023: 2 · 2022: 1 · 2021: 3 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 3 · 2016: 3 · 2014: 6 · 2013: 7 · 2012: 8
FWCI
10.26
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • American Diabetes Association
  • National Institutes of Health (5r01dk048493-04, 5r01dk015120-25)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 15120, DK-48493, DK-07314)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
JNK activation, TNF-α, apoptosis, mesangial cells, MKP-1, protein phosphatase, actinomycin D, cycloheximide, vanadate, ERK activation, apoptosis resistance
MeSH terms
Animals, Cell Survival, Cells, Cultured, Cycloheximide, Dactinomycin, Enzyme Activation, Glomerular Mesangium, Phosphoprotein Phosphatases, Tumor Necrosis Factor-alpha, Vanadates, NF-kappa B, Protein Tyrosine Phosphatases, Rats, Sprague-Dawley, Apoptosis, Calcium-Calmodulin-Dependent Protein Kinases, Immediate-Early Proteins, Cell Cycle Proteins, Okadaic Acid, Mitogen-Activated Protein Kinase 1, Mitogen-Activated Protein Kinases, JNK Mitogen-Activated Protein Kinases, Rats, Dual Specificity Phosphatase 1, Protein Phosphatase 1

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