DNA Oncogenic Virus-Induced Oxidative Stress, Genomic Damage, and Aberrant Epigenetic Alterations

Area of Science:

• Oncology
• Virology
• Molecular Biology
• Genetics

Background:

• Approximately 20% of human cancers are linked to DNA oncogenic viruses, including human papillomavirus (HPV), hepatitis B virus (HBV), and Epstein-Barr virus (EBV).
• Unrepaired DNA damage is a common feature across these viral infections, leading to genomic instability and tumor development.
• Sustained DNA damage, fueled by reactive oxygen species and inflammasome activation, triggers genomic alterations and epigenetic changes.

Purpose of the Study:

• To review the current literature on the mechanisms by which DNA damage influences the replication of HPV, HBV, and EBV.
• To elucidate the role of DNA damage in promoting epigenetic alterations associated with virus-induced carcinogenesis.
• To highlight the significance of understanding these processes for developing targeted cancer therapies.

Main Methods:

• Literature review of existing research on DNA damage, oncogenic viruses (HPV, HBV, EBV), and cancer development.
• Analysis of studies focusing on the interplay between viral replication, DNA damage response pathways, and epigenetic modifications.
• Synthesis of findings related to genomic instability and malignant transformation induced by viral infections.

Main Results:

• DNA damage is a critical factor influencing the replication strategies of HPV, HBV, and EBV.
• Accumulation of epigenetic alterations, driven by sustained DNA damage, contributes to malignant transformation.
• These interconnected processes create a cellular environment conducive to cancer development.

Conclusions:

• DNA damage plays a pivotal role in the pathogenesis of virus-induced cancers.
• Targeting DNA damage pathways and epigenetic alterations presents a promising therapeutic strategy for HPV, HBV, and EBV-associated malignancies.
• Further research into these mechanisms is essential for advancing cancer treatment and prevention.