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Published on: July 15, 2019
Molecular mechanisms of viral oncogenesis in humans
1Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Abstract:
Viral infection is a major contributor to the global cancer burden. Recent advances have revealed that seven known oncogenic viruses promote tumorigenesis through shared host cell targets and pathways. A comprehensive understanding of the principles of viral oncogenesis may enable the identification of unknown infectious aetiologies of cancer and the development of therapeutic or preventive strategies for virus-associated cancers. In this Review, we discuss the molecular mechanisms of viral oncogenesis in humans. We highlight recent advances in understanding how viral manipulation of host cellular signalling, DNA damage responses, immunity and microRNA targets promotes the initiation and development of cancer.
Insights
Seven oncogenic viruses cause cancer by targeting host cells. Understanding viral oncogenesis mechanisms can help identify new cancer causes and develop treatments for virus-associated cancers.
Area of Science:
- Oncology
- Virology
- Molecular Biology
Background:
- Viral infections are a significant cause of global cancer.
- Seven known oncogenic viruses contribute to cancer development.
- Shared host cell targets and pathways are implicated in viral tumorigenesis.
Purpose of the Study:
- To review the molecular mechanisms of viral oncogenesis in humans.
- To highlight recent advances in understanding virus-driven cancer.
- To explore the potential for identifying new infectious cancer causes and developing therapies.
Main Methods:
- Literature review of viral oncogenesis.
- Analysis of molecular mechanisms.
- Discussion of host-pathogen interactions.
Main Results:
- Oncogenic viruses manipulate host cellular signaling pathways.
- Viral manipulation of DNA damage responses contributes to cancer.
- Alterations in immunity and microRNA targets by viruses promote tumorigenesis.
Conclusions:
- Understanding viral oncogenesis is crucial for cancer research.
- This knowledge can lead to novel therapeutic and preventive strategies for virus-associated cancers.
- Identifying shared molecular targets offers opportunities for intervention.
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