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Updated: May 23, 2025

Genome-wide RNAi Screening to Identify Host Factors That Modulate Oncolytic Virus Therapy
Published on: April 3, 2018
Decoding the molecular complexity of viruses in human cancer: insights into host cell infection, oncogenesis, and
Chinmay Das1, Chanakya Nath Kundu1
1Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Bhubaneswar, Odisha, India.
Abstract:
Infections account for approximately 15% of human cancers worldwide. Viruses are the most predominant infectious agents and can infect and alter various types of human cells thereby leading to the development of various forms of cancer. Current studies have reported that Epstein-Barr virus (EBV), hepatitis B virus (HBV), hepatitis C virus (HBC), human papillomavirus (HPV), Kaposi's sarcoma-associated herpesvirus (KSHV), human T-lymphotropic virus 1 (HTLV-1), Markel cell polyomavirus (MCPyV), and BK polyomavirus are the most important oncogenic viruses that are directly involved in the initiation and progression of cancer. Additionally, some recent studies have also reported that some non-oncogenic viruses, such as COVID-19 causing SARS-CoV-2, HIV and Dengue may potentially facilitate the onset of cancer. In this review, we outline the current knowledge of the molecular machinery of viral infection, and how viral oncogenic proteins play a specific role in cellular transformation as well as oncogenesis. Here, we have also discussed the available preventive and treatment approaches for viral infection and oncogenesis. This review will further help in the making of a roadmap for future research and the development of effective therapies such as precision medicine, gene therapies, vaccine development, and immunotherapy.
Insights
Viruses cause about 15% of human cancers globally. This review details how oncogenic viruses initiate cancer and explores current and future preventive and treatment strategies, including precision medicine and immunotherapy.
Area of Science:
- Oncology
- Virology
- Molecular Biology
Background:
- Infections contribute to approximately 15% of human cancers worldwide.
- Viruses are key infectious agents that can transform human cells, leading to cancer development.
- Several viruses, including Epstein-Barr virus (EBV) and human papillomavirus (HPV), are established oncogenic agents.
Purpose of the Study:
- To review the molecular mechanisms by which viruses cause cancer.
- To discuss the role of viral oncogenic proteins in cellular transformation and oncogenesis.
- To outline current and future therapeutic strategies for virus-associated cancers.
Main Methods:
- Literature review of scientific studies on viral oncogenesis.
- Analysis of molecular pathways involved in viral infection and cancer development.
- Synthesis of information on preventive measures and treatment modalities.
Main Results:
- Identified major oncogenic viruses and their roles in cancer initiation and progression.
- Highlighted the function of viral oncogenic proteins in cellular transformation.
- Summarized existing preventive strategies and treatments for viral infections and associated cancers.
Conclusions:
- Understanding viral oncogenesis is crucial for developing effective cancer therapies.
- Future research should focus on precision medicine, gene therapies, vaccines, and immunotherapy for virus-induced cancers.
- Comprehensive strategies are needed to combat the global burden of virus-associated cancers.
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