Cited by 56Traumatic Brain Injury and Neurovascular DisturbancesKruppel-like factors researchTraumatic Brain Injury Research

KLF 4 Knockdown Attenuates TBI ‐Induced Neuronal Damage through p53 and JAK ‐ STAT 3 Signaling

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Cui, Da‐Ming, Zeng, Tao, Ren, Jie, Wang, Ke, Jin, Yi, Zhou, Lin, Gao, Liang·2017·CNS Neuroscience & Therapeutics

Abstract

AIMS: Traumatic brain injury (TBI) is induced by complex primary and secondary mechanisms that give rise to cell death, inflammation, and neurological dysfunction. Understanding the mechanisms that drive neurological damage as well as those that promote repair can guide the development of therapeutic drugs for TBI. Kruppel-like factor 4 (KLF4) has been reported to negatively regulate axon regeneration of injured retinal ganglion cells (RGCs) through inhibition of JAK-STAT3 signaling. However, the role of KLF4 in TBI remains unreported. Reactive oxygen species (ROS)-induced neuronal death is a pathophysiological hallmark of TBI. METHODS: -treated RGCs in vitro and the optic nerve crush model in vivo to simulate neuronal damage in TBI. The function of KLF4 in RGC survival and axon regeneration in these models was investigated. In addition, the effects of KLF4 knockdown on neuronal damage after a brain impact that mimics moderate TBI were studied. RESULTS: induces p53-dependent apoptosis of RGCs in vitro through upregulation of KLF4. Additionally, KLF4 knockdown in vivo significantly enhances CNTF-induced axon regeneration of RGCs after optic nerve crush, and more importantly, prevents neuronal damage after a moderate brain impact in rats. Our Western blot analysis and immunoprecipitation assay results indicate that these effects of KLF4 knockdown are mediated by the p53 and JAK-STAT3 pathways. CONCLUSION: These findings provide evidence that KLF4 plays an important role in the pathophysiology of TBI. Blocking KLF4 may be a potential therapeutic strategy for the treatment of TBI, either alone or in combination with agents that target complementary mechanisms.

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Authors
Cui, D., Zeng, T., Ren, J., Wang, K., Jin, Y., Zhou, L., & Gao, L.
Affiliations
  • Department of Neurosurgery Shanghai Tenth People's Hospital Tongji University School of Medicine Shanghai China
  • Tongji University (CN)
Corresponding author
Gao, Liang
Venue
CNS Neuroscience & Therapeutics
Publisher
Wiley
Published
2016-09-27
Volume
23
Issue
2
Pages
106-118
ISSN
  • 1755-5930 (ISSN-L)
  • 1755-5949
OpenAlex
W2524928277
Cited by
51
References
32
Citations by year
2026: 2 · 2025: 7 · 2024: 10 · 2023: 7 · 2022: 7 · 2021: 7 · 2020: 3 · 2019: 1 · 2018: 6 · 2017: 1
FWCI
2.01
Type
journal article
Language
en
Open access
Locations
  • CNS Neuroscience & Therapeutics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81201979)
Topics
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Kruppel-like factors research
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
Keywords
traumatic brain injury, KLF4, p53, JAK/STAT3 signaling, retinal ganglion cells, axon regeneration, optic nerve crush, reactive oxygen species, neuronal apoptosis, ciliary neurotrophic factor, neuroprotection
MeSH terms
Brain Injuries, Traumatic, Kruppel-Like Factor 4, Animals, Cerebral Cortex, Disease Models, Animal, Enzyme Inhibitors, Gene Expression Regulation, Hydrogen Peroxide, Nerve Regeneration, Retinal Ganglion Cells, Signal Transduction, Tumor Suppressor Protein p53, Rats, Sprague-Dawley, Apoptosis, Cyclin D1, Tyrphostins, Optic Nerve Injuries, STAT3 Transcription Factor, Rats, Kruppel-Like Transcription Factors, Janus Kinases

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