A double-edged function of DDX3, as an oncogene or tumor suppressor, in cancer progression (Review)
Yu He1, Dan Zhang1, Yanfang Yang1
1State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan 610041, P.R. China.
Abstract:
DEAD-box RNA helicase 3 (DDX3) is a highly conserved family member of DEAD-box proteins in all eukaryotes from yeasts to human beings. Accumulating studies have confirmed DDX3 has the ability to regulate different steps of RNA metabolism, including RNA splicing, RNA export, transcription and translation initiation. Moreover, DDX3 is involved in many biological processes, such as stress response, cell apoptosis, cell cycle regulation and virus infection. In recent years, DDX3 is getting increasing attention due to its essential roles in cancer progression. However, DDX3 role in cancer development is rather complicated. This review mainly focuses on the dual roles of DDX3 and DDX3-mediated signaling pathways in multiple cancers. In addition, the interplaying causes for the controversial roles of DDX3 in cancer are discussed. So far several small molecular chemical compounds targeting DDX3 are also summarized from the anticancer activity to the clinical trials of DDX3 inhibitors.
Insights
DEAD-box RNA helicase 3 (DDX3) is crucial for RNA metabolism and cellular processes. This review explores DDX3
Area of Science:
- Molecular Biology
- Cancer Research
- RNA Metabolism
Background:
- DEAD-box RNA helicase 3 (DDX3) is a conserved protein family across eukaryotes.
- DDX3 regulates critical RNA metabolic processes: splicing, export, transcription, and translation.
- DDX3 participates in diverse biological functions including stress response, apoptosis, cell cycle, and viral infections.
Purpose of the Study:
- To review the dual roles of DDX3 in cancer progression.
- To elucidate DDX3-mediated signaling pathways in various cancers.
- To discuss factors contributing to the controversial roles of DDX3 in cancer development.
Main Methods:
- Literature review of studies on DDX3 function in cancer.
- Analysis of DDX3-mediated signaling pathways.
- Summary of small molecular compounds targeting DDX3.
Main Results:
- DDX3 exhibits complex, dual roles in cancer development, acting as both an oncogene and a tumor suppressor.
- Specific signaling pathways modulated by DDX3 influence cancer progression.
- Several small molecule inhibitors targeting DDX3 have been developed, with some progressing to clinical trials.
Conclusions:
- DDX3 plays a significant and multifaceted role in cancer, necessitating further investigation.
- Understanding DDX3's complex functions and pathways is key to developing targeted cancer therapies.
- Targeting DDX3 with small molecules shows promise for cancer treatment.
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