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Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death
Published on: December 27, 2016
Aryl hydrocarbon receptor regulates programmed cell death in diseases: molecular mechanisms and therapeutic
Yuanyuan Jiang1, Zhiyuan Qiang2, Like Zhu1
1Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, China.
Abstract:
The aryl hydrocarbon receptor (AHR), which is a ligand-activated transcription factor, controls complex transcription programs in a ligand-specific, cell type-specific, and context-specific manner by integrating signals from the environment, diet, microorganisms, and metabolism. Emerging evidence indicates that AHR participates in the regulation of multiple cell death pathways, including apoptosis, necroptosis, autophagy, pyroptosis, and ferroptosis, playing a crucial role in influencing the pathogenesis of diseases. Originally identified as a sensor for environmental toxins, AHR is now recognized for its interactions with both endogenous and microbial ligands, allowing it to orchestrate complex biological processes. This review synthesizes current knowledge on the structural dynamics, ligand diversity, and activation mechanisms of AHR, while highlighting its dual roles in programmed cell death (PCD). Additionally, we discuss the significance of AHR-regulated cell death in inflammatory diseases, neurological disorders, respiratory diseases, and cancer, highlighting its potential as a therapeutic target for various human conditions.
Insights
The aryl hydrocarbon receptor (AHR) regulates diverse cell death pathways, impacting disease development. Understanding AHR
Area of Science:
- Molecular Biology
- Cell Biology
- Immunology
Background:
- The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor integrating environmental, dietary, and metabolic signals.
- AHR plays a critical role in orchestrating complex biological processes and is implicated in various cell death pathways.
- Originally identified as a toxin sensor, AHR's role extends to endogenous and microbial ligand interactions.
Purpose of the Study:
- To synthesize current knowledge on AHR's structural dynamics, ligand diversity, and activation mechanisms.
- To highlight AHR's dual roles in programmed cell death (PCD).
- To discuss the significance of AHR-regulated cell death in human diseases and its therapeutic potential.
Main Methods:
- Literature review and synthesis of existing research on AHR.
- Analysis of AHR's involvement in apoptosis, necroptosis, autophagy, pyroptosis, and ferroptosis.
- Examination of AHR's role in the pathogenesis of inflammatory diseases, neurological disorders, respiratory diseases, and cancer.
Main Results:
- AHR exhibits ligand-specific, cell type-specific, and context-specific transcriptional control.
- AHR actively participates in the regulation of multiple programmed cell death pathways.
- AHR signaling is crucial in the pathogenesis of a wide range of human diseases.
Conclusions:
- AHR is a key regulator of programmed cell death with significant implications in disease.
- AHR's multifaceted roles in cell death present potential therapeutic strategies for various human conditions.
- Further research into AHR-regulated cell death mechanisms could unlock novel treatment avenues.
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