Molecular mechanisms of viral oncogenesis in humans

Nathan A Krump1, Jianxin You2

  • 1Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Insights

Seven oncogenic viruses cause cancer by targeting host cells. Understanding viral oncogenesis mechanisms can help identify new cancer causes and develop treatments for virus-associated cancers.

Area of Science:

  • Oncology
  • Virology
  • Molecular Biology

Background:

  • Viral infections are a significant cause of global cancer.
  • Seven known oncogenic viruses contribute to cancer development.
  • Shared host cell targets and pathways are implicated in viral tumorigenesis.

Purpose of the Study:

  • To review the molecular mechanisms of viral oncogenesis in humans.
  • To highlight recent advances in understanding virus-driven cancer.
  • To explore the potential for identifying new infectious cancer causes and developing therapies.

Main Methods:

  • Literature review of viral oncogenesis.
  • Analysis of molecular mechanisms.
  • Discussion of host-pathogen interactions.

Main Results:

  • Oncogenic viruses manipulate host cellular signaling pathways.
  • Viral manipulation of DNA damage responses contributes to cancer.
  • Alterations in immunity and microRNA targets by viruses promote tumorigenesis.

Conclusions:

  • Understanding viral oncogenesis is crucial for cancer research.
  • This knowledge can lead to novel therapeutic and preventive strategies for virus-associated cancers.
  • Identifying shared molecular targets offers opportunities for intervention.

Related Concept Videos

Viral Recombination00:57

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
25.2K
Viral Structure00:56

Viral Structure

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.6K