Evolution of virulence in picornaviruses

S. Tracy, N. M. Chapman, K. M. Drescher, K. Kono, William E Tapprich

Research output: Contribution to journalReview article

30 Citations (Scopus)

Abstract

The Picornaviridae encompass many positive-strand RNA viruses, all of which share a generally similar genome design and capsid structure, but which induce quite diverse diseases in humans and other animals. Picornavirus strains of the same serotype have been shown to express different virulence (or pathogenic) phenotypes when studied in animal models, demonstrating that key elements of pathogenesis reside in the viral genome. However, the genetics that determine the virulence phenotype of any picornavirus are poorly understood. Picornaviruses do not have virulence genes per se, but the design of the capsid and how it interacts with the virus receptor expressed on the host cell surface, specific sequences within the nontranslated regions of the viral genome, as well as coding sequences that result in different protein sequences may all have a part in determining the virulence phenotype. Virulence may be better understood as a continuum from an apparent inability to induce disease to the ability to cause severe pathogenic changes. Ultimately, the ability of a picornavirus to induce disease depends upon viral genetics and how they are modulated by the host environment.

Original languageEnglish (US)
Pages (from-to)193-209
Number of pages17
JournalCurrent topics in microbiology and immunology
Volume299
DOIs
StatePublished - Jan 20 2006

Fingerprint

Picornaviridae
Virulence
Viral Genome
Capsid
Phenotype
Virus Receptors
RNA Viruses
Animal Models
Genome
Genes
Proteins

ASJC Scopus subject areas

  • Immunology and Allergy
  • Microbiology
  • Immunology
  • Microbiology (medical)

Cite this

Evolution of virulence in picornaviruses. / Tracy, S.; Chapman, N. M.; Drescher, K. M.; Kono, K.; Tapprich, William E.

In: Current topics in microbiology and immunology, Vol. 299, 20.01.2006, p. 193-209.

Research output: Contribution to journalReview article

Tracy, S. ; Chapman, N. M. ; Drescher, K. M. ; Kono, K. ; Tapprich, William E. / Evolution of virulence in picornaviruses. In: Current topics in microbiology and immunology. 2006 ; Vol. 299. pp. 193-209.
@article{79e1ff92fa514173a49cba4f495f6bdb,
title = "Evolution of virulence in picornaviruses",
abstract = "The Picornaviridae encompass many positive-strand RNA viruses, all of which share a generally similar genome design and capsid structure, but which induce quite diverse diseases in humans and other animals. Picornavirus strains of the same serotype have been shown to express different virulence (or pathogenic) phenotypes when studied in animal models, demonstrating that key elements of pathogenesis reside in the viral genome. However, the genetics that determine the virulence phenotype of any picornavirus are poorly understood. Picornaviruses do not have virulence genes per se, but the design of the capsid and how it interacts with the virus receptor expressed on the host cell surface, specific sequences within the nontranslated regions of the viral genome, as well as coding sequences that result in different protein sequences may all have a part in determining the virulence phenotype. Virulence may be better understood as a continuum from an apparent inability to induce disease to the ability to cause severe pathogenic changes. Ultimately, the ability of a picornavirus to induce disease depends upon viral genetics and how they are modulated by the host environment.",
author = "S. Tracy and Chapman, {N. M.} and Drescher, {K. M.} and K. Kono and Tapprich, {William E}",
year = "2006",
month = "1",
day = "20",
doi = "10.1007/3-540-26397-7_7",
language = "English (US)",
volume = "299",
pages = "193--209",
journal = "Current Topics in Microbiology and Immunology",
issn = "0070-217X",
publisher = "Springer Verlag",

}

TY - JOUR

T1 - Evolution of virulence in picornaviruses

AU - Tracy, S.

AU - Chapman, N. M.

AU - Drescher, K. M.

AU - Kono, K.

AU - Tapprich, William E

PY - 2006/1/20

Y1 - 2006/1/20

N2 - The Picornaviridae encompass many positive-strand RNA viruses, all of which share a generally similar genome design and capsid structure, but which induce quite diverse diseases in humans and other animals. Picornavirus strains of the same serotype have been shown to express different virulence (or pathogenic) phenotypes when studied in animal models, demonstrating that key elements of pathogenesis reside in the viral genome. However, the genetics that determine the virulence phenotype of any picornavirus are poorly understood. Picornaviruses do not have virulence genes per se, but the design of the capsid and how it interacts with the virus receptor expressed on the host cell surface, specific sequences within the nontranslated regions of the viral genome, as well as coding sequences that result in different protein sequences may all have a part in determining the virulence phenotype. Virulence may be better understood as a continuum from an apparent inability to induce disease to the ability to cause severe pathogenic changes. Ultimately, the ability of a picornavirus to induce disease depends upon viral genetics and how they are modulated by the host environment.

AB - The Picornaviridae encompass many positive-strand RNA viruses, all of which share a generally similar genome design and capsid structure, but which induce quite diverse diseases in humans and other animals. Picornavirus strains of the same serotype have been shown to express different virulence (or pathogenic) phenotypes when studied in animal models, demonstrating that key elements of pathogenesis reside in the viral genome. However, the genetics that determine the virulence phenotype of any picornavirus are poorly understood. Picornaviruses do not have virulence genes per se, but the design of the capsid and how it interacts with the virus receptor expressed on the host cell surface, specific sequences within the nontranslated regions of the viral genome, as well as coding sequences that result in different protein sequences may all have a part in determining the virulence phenotype. Virulence may be better understood as a continuum from an apparent inability to induce disease to the ability to cause severe pathogenic changes. Ultimately, the ability of a picornavirus to induce disease depends upon viral genetics and how they are modulated by the host environment.

UR - http://www.scopus.com/inward/record.url?scp=30644459424&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=30644459424&partnerID=8YFLogxK

U2 - 10.1007/3-540-26397-7_7

DO - 10.1007/3-540-26397-7_7

M3 - Review article

C2 - 16568900

AN - SCOPUS:30644459424

VL - 299

SP - 193

EP - 209

JO - Current Topics in Microbiology and Immunology

JF - Current Topics in Microbiology and Immunology

SN - 0070-217X

ER -