From Viral Infection to Malignancy: The Dual Threat of EBV and COVID-19 in Cancer Development.

Abstract

This narrative review consolidates existing evidence about the interaction between Epstein-Barr virus (EBV) and SARS-CoV-2 in cancer development. EBV is a recognized oncogenic driver, whereas COVID-19 may heighten cancer risk by immunological dysregulation, persistent inflammation, and reactivation of latent viruses. We underscore molecular similarities (e.g., NF-κB activation, T-cell exhaustion) and clinical ramifications for high-risk individuals, stressing the necessity for interdisciplinary research to alleviate dual viral risks. EBV, a well-known oncogenic virus, has been linked to numerous malignancies, including lymphomas, nasopharyngeal carcinoma, and gastric cancer. Through the production of viral proteins that interfere with immune evasion, cellular signaling, and genomic integrity, it encourages malignant transformation and ultimately results in unchecked cell proliferation. Because of its capacity to induce tissue damage, immunological dysregulation, and chronic inflammation, COVID-19, which is brought on by the SARS-CoV-2 virus, has become a possible carcinogen. The virus's influence on cellular pathways and its long-term effects on the immune system may raise the chance of malignancy, particularly in people with pre-existing vulnerabilities, even if direct correlations to cancer are still being investigated. When two viruses co-infect a host, the review highlights the possibility of synergistic effects that could hasten the development of cancer. It describes how overlapping mechanisms like inflammation, immune suppression, and viral reactivation may be used by a combined EBV and COVID-19 infection to exacerbate carcinogenic processes. Gaining an understanding of these relationships is essential for creating tailored treatment plans and enhancing cancer prevention in high-risk groups.