Virus-Driven Carcinogenesis

Area of Science:

• Oncology
• Virology
• Genetics

Background:

• Cancer develops from genetic and epigenetic changes, with carcinogens playing a key role.
• While mutational signatures from DNA damage are studied, tumor viruses represent a distinct class of carcinogens.
• Tumor viruses contribute to cancer through insertional mutagenesis, viral oncogenes, and immunosuppression.

Purpose of the Study:

• To review virus-driven carcinogenesis and establish a framework for controlling malignant cell proliferation.
• To provide an overview of oncogenic viruses and their association with various tumors.
• To highlight known and emerging viral candidates implicated in cancer development.

Main Methods:

• Literature review of oncogenic viruses and their mechanisms.
• Summarization of established tumor viruses (HPV, HBV, HCV, EBV, KSHV, MCV, HTLV-1) and associated cancers.
• Introduction of emerging viral candidates (CMV, HHV-6, AAV-2).

Main Results:

• Identified specific tumor viruses and their roles in different cancers.
• Described alternative carcinogenic mechanisms employed by viruses beyond DNA damage.
• Highlighted emerging viral candidates with potential oncogenic activity.

Conclusions:

• Virus-driven carcinogenesis is a significant factor in cancer development.
• Understanding viral mechanisms is crucial for developing strategies to control virus-associated cancers.
• This review serves as a central resource for data on virus-associated carcinogenesis.