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Updated: Sep 11, 2025

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Published on: January 31, 2025
Emerging roles of KLF4 regulation of autophagy in different physiological and pathological processes
Chenglin Zhu1, Qi Zhang1, Hao Fan1
1Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng 475004, Henan, China.
Abstract:
Krüppel-like factor 4 (KLF4) is a zinc finger transcription factor that exhibits both transcriptional activation and inhibition effects. It participates in the occurrence and development of various diseases by regulating processes such as cell cycle arrest, differentiation, and the maintenance of stem cell pluripotency. Autophagy, as a conserved lysosome dependent degradation pathway in eukaryotes, maintains cellular homeostasis by clearing abnormal proteins and damaged organelles. Its dysfunction is closely related to tumors, neurodegenerative diseases, metabolic disorders, and so on. Growing evidence indicates that KLF4 participates in multiple physiological and pathological processes through regulating autophagy, however, the underlying mechanisms are not fully understood. This article systematically reviewed the understanding of KLF4 and autophagy in recent years, critically synthesized the complex and context-dependent roles of KLF4-mediated autophagy regulation in different physiological and pathological processes, and analyzed the relevant molecular mechanisms, with an emphasis on identifying overarching regulatory patterns and functional consequences, hoping to provide theoretical basis for future in-depth research.
Insights
Krüppel-like factor 4 (KLF4) regulates cellular processes and is linked to diseases. This review synthesizes how KLF4-mediated autophagy impacts various conditions, offering insights into molecular mechanisms and functional consequences.
Area of Science:
- Molecular Biology
- Cellular Biology
- Biochemistry
Background:
- Krüppel-like factor 4 (KLF4) is a transcription factor involved in cell cycle, differentiation, and pluripotency, impacting disease development.
- Autophagy is a crucial cellular degradation pathway maintaining homeostasis, with its dysfunction linked to numerous diseases like cancer and neurodegeneration.
Purpose of the Study:
- To systematically review and synthesize current understanding of Krüppel-like factor 4 (KLF4) and autophagy.
- To critically analyze the complex, context-dependent roles of KLF4-mediated autophagy regulation in physiological and pathological processes.
- To investigate the molecular mechanisms underlying KLF4's regulation of autophagy and identify overarching patterns.
Main Methods:
- Systematic literature review of KLF4 and autophagy research.
- Critical synthesis of existing studies on KLF4-mediated autophagy.
- Analysis of molecular mechanisms and functional consequences.
Main Results:
- KLF4 exhibits dual transcriptional roles and influences cell fate.
- Autophagy dysfunction is implicated in various diseases.
- Growing evidence links KLF4 to autophagy regulation across diverse biological contexts.
Conclusions:
- KLF4 plays a significant role in regulating autophagy.
- Understanding KLF4-mediated autophagy is crucial for comprehending its involvement in disease.
- Further research into these mechanisms can inform therapeutic strategies.
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