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[Advances in the study of viruses inhibiting the production of advanced autophagy or interferon through Rubicon to achieve innate immune escape].

Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi

January 2025

Department of Pathogen Biology and Immunology, Kunming Medical University, Kunming 650500, China. *Corresponding authors, E-mail:

The innate immune response is the first line of defense for the host against viral infections. Targeted degradation of pathogenic microorganisms through autophagy, in conjunction with pattern recognition receptors synergistically inducing the production of interferon (IFN), constitutes an important pathway for the body to resist viral infections. Rubicon, a Run domain Beclin 1-interacting and cysteine-rich domain protein, has an inhibitory effect on autophagy and IFN production.

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Oral Kaposi sarcoma in Brazil: a case series of 40 patients highlighting a significant health burden.

Oral Surg Oral Med Oral Pathol Oral Radiol

December 2024

Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil; Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Pará, Brazil. Electronic address:

Objective: The aim of this study was to provide a comprehensive clinicopathological analysis of oral Kaposi sarcoma (KS) cases and examine its relationship with HIV-related immunosuppression.

Study Design: Paraffin-embedded tissue blocks of patients microscopically diagnosed with oral KS were retrieved from three oral and maxillofacial pathology files. Data including clinical, laboratory, microscopic and immunohistochemical findings and treatment employed were retrieved.

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Gammaherpesviruses are oncogenic pathogens that establish lifelong infections. There are no FDA-approved vaccines against Epstein-Barr virus or Kaposi sarcoma herpesvirus. Murine gammaherpesvirus-68 (MHV68) infection of mice provides a system for investigating gammaherpesvirus pathogenesis and testing vaccine strategies.

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Epstein-Barr virus (EBV) and Kaposi's sarcoma-associated herpesvirus (KSHV), which are the only members of the gamma(γ) herpesviruses, are oncogenic viruses that significantly contribute to the development of various human cancers, such as Burkitt's lymphoma, nasopharyngeal carcinoma, Hodgkin's lymphoma, Kaposi's sarcoma, and primary effusion lymphoma. Oncogenesis triggered by γ-herpesviruses involves complex interactions between viral genetics, host cellular mechanisms, and immune evasion strategies. At the genetic level, crucial viral oncogenes participate in the disruption of cell signaling, leading to uncontrolled proliferation and inhibition of apoptosis.

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Kaposi's sarcoma-associated herpesvirus (KSHV) is a double-stranded DNA gamma herpesvirus. Like other herpesviruses, KSHV establishes a latent infection with limited gene expression, while KSHV occasionally undergoes the lytic replication phase, which produces KSHV progenies and infects neighboring cells. KSHV genome encodes 80+ open reading frames.

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