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Updated: Jun 28, 2025

Genome-wide RNAi Screening to Identify Host Factors That Modulate Oncolytic Virus Therapy
Published on: April 3, 2018
The role and impact of viruses on cancer development
Adolfo Contreras1, Sandra Amaya Sánchez2, Carolina Rodríguez-Medina3
1Escuela de Odontología, Universidad del Valle, Cali, Colombia.
Abstract:
This review focuses on three major aspects of oncoviruses' role in cancer development. To begin, we discuss their geographic distribution, revealing that seven oncoviruses cause 20% of all human cancers worldwide. Second, we investigate the primary carcinogenic mechanisms, looking at how these oncogenic viruses can induce cellular transformation, angiogenesis, and local and systemic inflammation. Finally, we investigate the possibility of SARS-CoV-2 infection reactivating latent oncoviruses, which could increase the risk of further disease. The development of oncovirus vaccines holds great promise for reducing cancer burden. Many unanswered questions about the host and environmental cofactors that contribute to cancer development and prevention remain, which ongoing research is attempting to address.
Insights
Oncoviruses cause 20% of human cancers globally through mechanisms like cellular transformation and inflammation. Research explores SARS-CoV-2
Area of Science:
- Oncology
- Virology
- Immunology
Background:
- Oncoviruses are a significant global health concern, responsible for a substantial portion of human cancers.
- Understanding the mechanisms by which these viruses contribute to cancer is crucial for developing effective prevention and treatment strategies.
Purpose of the Study:
- To review the geographic distribution and prevalence of major oncoviruses.
- To elucidate the carcinogenic mechanisms employed by oncogenic viruses.
- To explore the potential role of SARS-CoV-2 in reactivating latent oncoviruses and its implications for cancer risk.
Main Methods:
- Literature review and synthesis of existing research on oncoviruses and cancer.
- Analysis of data on the global distribution and incidence of virus-associated cancers.
- Examination of molecular and cellular pathways involved in viral oncogenesis.
Main Results:
- Seven oncoviruses are responsible for approximately 20% of all human cancers worldwide.
- Oncogenic viruses induce cancer through mechanisms including cellular transformation, promotion of angiogenesis, and induction of inflammation.
- The potential for SARS-CoV-2 to reactivate latent oncoviruses presents a novel area of concern for cancer risk.
Conclusions:
- Oncovirus vaccines represent a promising strategy for reducing the global cancer burden.
- Further research is needed to fully understand the interplay of host and environmental factors in oncovirus-driven cancer development and prevention.
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