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Published on: April 3, 2018
Oncoviruses: How do they hijack their host and current treatment regimes
1Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078, USA.
Abstract:
Viruses have the ability to modulate the cellular machinery of their host to ensure their survival. While humans encounter numerous viruses daily, only a select few can lead to disease progression. Some of these viruses can amplify cancer-related traits, particularly when coupled with factors like immunosuppression and co-carcinogens. The global burden of cancer development resulting from viral infections is approximately 12%, and it arises as an unfortunate consequence of persistent infections that cause chronic inflammation, genomic instability from viral genome integration, and dysregulation of tumor suppressor genes and host oncogenes involved in normal cell growth. This review provides an in-depth discussion of oncoviruses and their strategies for hijacking the host's cellular machinery to induce cancer. It delves into how viral oncogenes drive tumorigenesis by targeting key cell signaling pathways. Additionally, the review discusses current therapeutic approaches that have been approved or are undergoing clinical trials to combat malignancies induced by oncoviruses. Understanding the intricate interactions between viruses and host cells can lead to the development of more effective treatments for virus-induced cancers.
Insights
Oncoviruses hijack host cells to promote cancer, contributing to 12% of global cancer cases. This review explores viral oncogenes, host cell manipulation, and emerging therapies for virus-induced malignancies.
Area of Science:
- Virology
- Oncology
- Molecular Biology
Background:
- Viruses can alter host cell functions, with some oncoviruses contributing to cancer development.
- Viral infections are linked to approximately 12% of global cancer cases, often due to chronic inflammation and genomic instability.
- Oncoviruses exploit host cellular machinery, dysregulating genes involved in normal cell growth.
Purpose of the Study:
- To review the mechanisms by which oncoviruses induce cancer.
- To discuss the role of viral oncogenes in targeting cell signaling pathways.
- To examine current and emerging therapeutic strategies for virus-induced cancers.
Main Methods:
- Literature review of oncoviruses and cancer mechanisms.
- Analysis of viral oncogene functions and host cell interactions.
- Survey of approved and clinical trial therapies for oncovirus-related malignancies.
Main Results:
- Oncoviruses utilize diverse strategies to manipulate host cells, driving tumorigenesis.
- Viral genome integration can lead to genomic instability and oncogene activation.
- Key cell signaling pathways are frequently targeted by viral oncogenes.
Conclusions:
- Understanding oncovirus-host interactions is crucial for developing effective cancer treatments.
- Targeting viral oncogenes and host pathways offers therapeutic potential.
- Further research into oncovirus biology can improve prevention and treatment of virus-induced cancers.
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