Cyclin-dependent kinases and CDK inhibitors in virus-associated cancers
Shaian Tavakolian1, Hossein Goudarzi1, Ebrahim Faghihloo1
1Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract:
The role of several risk factors, such as pollution, consumption of alcohol, age, sex and obesity in cancer progression is undeniable. Human malignancies are mainly characterized by deregulation of cyclin-dependent kinases (CDK) and cyclin inhibitor kinases (CIK) activities. Viruses express some onco-proteins which could interfere with CDK and CIKs function, and induce some signals to replicate their genome into host's cells. By reviewing some studies about the function of CDK and CIKs in cells infected with oncoviruses, such as HPV, HTLV, HERV, EBV, KSHV, HBV and HCV, we reviewed the mechanisms of different onco-proteins which could deregulate the cell cycle proteins.
Insights
This study reviews how oncoviruses hijack cell cycle regulators, cyclin-dependent kinases (CDK) and cyclin inhibitor kinases (CIK), to promote cancer. Understanding these viral oncoproteins
Area of Science:
- Oncology
- Virology
- Molecular Biology
Background:
- Cancer development involves the deregulation of cell cycle control.
- Cyclin-dependent kinases (CDK) and cyclin inhibitor kinases (CIK) are key regulators of the cell cycle.
- Oncoviruses are known to contribute to cancer progression.
Purpose of the Study:
- To review the mechanisms by which viral oncoproteins interfere with CDK and CIK activities.
- To explore how oncoviruses exploit cell cycle regulatory proteins for their replication and to promote malignancy.
Main Methods:
- Literature review of studies on oncoviruses and cell cycle regulation.
- Analysis of mechanisms involving oncoproteins from HPV, HTLV, HERV, EBV, KSHV, HBV, and HCV.
- Focus on the interaction between viral oncoproteins and CDK/CIK pathways.
Main Results:
- Oncoviral oncoproteins can disrupt normal CDK and CIK functions.
- Viral proteins induce signaling pathways that facilitate viral genome replication within host cells.
- Specific oncoproteins from various viruses demonstrate distinct strategies for cell cycle dysregulation.
Conclusions:
- Oncoviruses play a significant role in cancer progression by manipulating cell cycle machinery.
- Understanding these viral mechanisms is crucial for developing targeted cancer therapies.
- Targeting the interaction between oncoproteins and cell cycle regulators presents a potential therapeutic strategy.
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