Gammaherpesviruses and lymphoproliferative disorders

Area of Science:

• Virology
• Oncology
• Immunology

Background:

• Epstein-Barr virus (EBV/HHV-4) and Kaposi's sarcoma herpesvirus (KSHV/HHV-8) are human herpesviruses associated with various cancers.
• These viruses are frequently implicated in lymphomas and other malignancies, especially in individuals with primary or acquired immunodeficiency (e.g., HIV/AIDS, organ transplant recipients).

Purpose of the Study:

• To elucidate the role of EBV and KSHV in human lymphomagenesis.
• To understand the molecular mechanisms by which these viruses contribute to cancer development and progression.

Main Methods:

• Review of current scientific literature on EBV and KSHV associated malignancies.
• Analysis of viral contributions to genomic instability and cellular signaling pathways.

Main Results:

• EBV is associated with Hodgkin and non-Hodgkin lymphomas, lymphoproliferative disorders, and nasopharyngeal carcinoma.
• KSHV is linked to primary effusion lymphomas, multicentric Castleman's disease, and Kaposi's sarcoma.
• Both viruses promote lymphomagenesis by impacting genomic stability and subverting cellular processes to evade immune surveillance and promote tumor growth.

Conclusions:

• EBV and KSHV are significant oncogenic agents, particularly in the context of immunodeficiency.
• Further understanding of viral oncogenesis mechanisms is crucial for improving diagnostic, preventive, and therapeutic approaches for virus-associated cancers.