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Published on: March 24, 2023
Role of apoptosis repressor with caspase recruitment domain (ARC) in cancer
Zhongjie Yu1,2, Qi Li3, Yi An4
1Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China.
Abstract:
Apoptosis repressor with caspase recruitment domain (ARC) is a potent inhibitor of apoptosis. Under physiological conditions, ARC is abundantly expressed in terminally differentiated cells, including cardiomyocytes, skeletal muscles and neurons. ARC serves a key role in determining cell fate, and abnormal ARC expression has been demonstrated to be associated with abnormal cell growth. Previous studies have revealed that ARC was upregulated in several different types of solid tumor, where it suppressed tumor cell apoptosis. Furthermore, the increased expression levels of ARC in cancer cells contributed to the development of therapeutic resistance and adverse clinical outcomes in patients with leukemia. However, the exact role of ARC, as well as the underlying molecular mechanisms involved, remain poorly understood. The present review summarizes the characteristics of ARC and its cytoprotective role under different conditions and describes the potential ARC as a new target for cancer therapy.
Insights
Apoptosis repressor with caspase recruitment domain (ARC) inhibits apoptosis and is upregulated in tumors, promoting therapeutic resistance. Understanding ARC
Area of Science:
- Molecular biology
- Cell biology
- Oncology
Background:
- Apoptosis repressor with caspase recruitment domain (ARC) is a key regulator of apoptosis, crucial for cell fate.
- ARC is highly expressed in terminally differentiated cells like neurons and muscle cells.
- Aberrant ARC expression is linked to abnormal cell growth and various cancers.
Purpose of the Study:
- To review the characteristics and cytoprotective functions of ARC.
- To explore the molecular mechanisms underlying ARC's role in cell fate and cancer.
- To evaluate ARC as a potential therapeutic target in oncology.
Main Methods:
- Literature review of existing studies on ARC.
- Analysis of ARC expression patterns in normal and cancerous tissues.
- Examination of ARC's involvement in apoptosis regulation and therapeutic resistance.
Main Results:
- ARC is upregulated in several solid tumors, suppressing cancer cell apoptosis.
- Elevated ARC levels in cancer cells correlate with therapeutic resistance and poor clinical outcomes, particularly in leukemia.
- ARC's precise role and molecular mechanisms in cancer require further elucidation.
Conclusions:
- ARC plays a significant cytoprotective role under various conditions.
- ARC's involvement in promoting cancer cell survival and therapeutic resistance highlights its potential as a novel cancer therapy target.
- Further research into ARC's mechanisms could unlock new therapeutic strategies for cancer treatment.
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