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Related Experiment Video

Updated: Dec 24, 2025

Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus KSHV
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Kaposi's Sarcoma-Associated Herpesvirus and Host Interaction by the Complement System.

Seung-Min Yoo1, Myung-Shin Lee1

  • 1Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon 34824, Korea.

Pathogens (Basel, Switzerland)
|April 9, 2020
PubMed
Summary

Kaposi's sarcoma-associated herpesvirus (KSHV) evades the immune system but paradoxically activates the complement system in infected cells. Understanding this interaction may lead to new therapies for KSHV-associated cancers.

Keywords:
KSHVcomplement systeminnate immunitymembrane attack complexvirus–host interaction

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Area of Science:

  • Virology
  • Immunology
  • Complement System Biology

Background:

  • Kaposi's sarcoma-associated herpesvirus (KSHV) establishes persistent infections and promotes cancer by manipulating host immunity.
  • The complement system is crucial for pathogen defense.
  • KSHV utilizes viral protein K4 to evade complement-mediated attack.

Purpose of the Study:

  • To review the mechanisms and functions of complement activation in KSHV-infected cells.
  • To explore the complex interplay between KSHV and the complement system.
  • To identify potential therapeutic targets for KSHV-associated malignancies.

Main Methods:

  • Literature review of studies on KSHV and complement interactions.
  • Analysis of complement activation pathways in KSHV infection.
  • Discussion of viral evasion strategies and host responses.

Main Results:

  • Despite KSHV's evasion strategies, complement activation occurs in KSHV-infected cells and tumor microenvironments.
  • Complement activation influences KSHV pathogenesis by affecting cell fate and inflammation.
  • KSHV open reading frame 4 protein is involved in complement evasion.

Conclusions:

  • Complement system activation is a significant factor in KSHV pathogenesis.
  • Further research into KSHV-complement interactions can inform novel therapeutic strategies.
  • Targeting the complement system may offer new avenues for treating KSHV-associated cancers.