Infectious agents and human malignancies

John L. Ziegler, Franco M. Buonaguro

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Cancer has periodically been proposed as transmissible disease in animals and humans, and specific pathogens have long been searched for. Several biomolecular studies, fundamental in understanding cancer pathogenesis, have identified mechanisms directly/indirectly involved in pathogens-related cancer, including 1) oncogene transduction, with introduction of exogenous oncogenic genes; 2) activation of endogenous oncogenes, comprising those from endogenous retroviruses; 3) inactivation of constitutive suppressor genes, with enhanced susceptibility to exogenous oncogenic agents. Further pathogens' indirect role is associated to cancer promotion through inflammation and angiogenesis. The global burden of cancer associated with infectious agents approaches 20% of all malignancies. Most of the common "infectious" cancers occur in developing countries and their "attributable risk" (i.e. the proportion of cancers that would not occur if the agent were removed) is considerable. Although the cancer role of often ubiquitous pathogens, and the molecular mechanisms involved in the infrequent progression of chronic infections to cancers are still often unknown, the identity of the agents and efforts to mitigate their effects can lead to effective cancer prevention and substantive public health benefit.

Original languageEnglish
Pages (from-to)3455-3464
Number of pages10
JournalFrontiers in Bioscience
Volume14
Issue number9
DOIs
Publication statusPublished - Jan 1 2009

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Pathogens
Neoplasms
Genes
Public health
Developing countries
Animals
Chemical activation
Oncogenes
Suppressor Genes
Endogenous Retroviruses
Animal Diseases
Insurance Benefits
Developing Countries
Public Health
Inflammation

Keywords

  • Angiogenesis
  • Attributable risk
  • Cancer
  • Infectious agents
  • Inflammation
  • Review

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Medicine(all)

Cite this

Infectious agents and human malignancies. / Ziegler, John L.; Buonaguro, Franco M.

In: Frontiers in Bioscience, Vol. 14, No. 9, 01.01.2009, p. 3455-3464.

Research output: Contribution to journalArticle

Ziegler, John L. ; Buonaguro, Franco M. / Infectious agents and human malignancies. In: Frontiers in Bioscience. 2009 ; Vol. 14, No. 9. pp. 3455-3464.
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