Key Points
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Genetic and genomic technologies, such as nucleic acid-based pathogen detection and genome-wide association studies, have expanded our view of the viruses that can infect our mucosal surfaces, and of human genetic variations that affect host–virus interactions.
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These new technologies have revealed a high prevalence of viruses in healthy hosts, indicating that in many cases the presence of a virus is not sufficient to cause disease.
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Furthermore, these new technologies have shown that the 'one pathogen–one disease' model may not be applicable for many diseases. In these diseases, the genetics of the host and environmental conditions combine with the presence of a pathogen to determine the outcome of the infection. Mounting evidence indicates that type I diabetes, Crohn's disease and asthma may follow this model.
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Mutations in host genes involved in antiviral defence can predispose the host to type 1 diabetes. Changes in a large regulatory network that lead to a heightened immune response have been implicated, by genome-wide association studies, as factors that predispose people to this disease, although no virus has been tied directly to the disease.
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Crohn's disease is probably the result of a combination of environmental, genetic and viral factors. Mutations in genes that encode parts of the host innate immune system or autophagy pathway have been shown to sensitize model hosts to particular viruses, leading to Crohn's disease.
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In the case of asthma, studies have indicated that viral infections, particularly with human rhinoviruses, are the most common cause of disease exacerbations. Furthermore, a severe response to rhinovirus infection in childhood correlates with subsequent disease development. However, as the majority of the population is repeatedly exposed to rhinoviruses, additional host factors must be required as well.
Abstract
New technologies have widened our view of 'complex diseases': those with both genetic and environmental risk factors. In this Review, we explore recent genetic and virological evidence implicating host–virus interactions in three diseases: type 1 diabetes, inflammatory bowel disease and asthma. The viruses implicated in these diseases cause mucosal infections that affect most of the population but are asymptomatic or mild in many hosts. These findings place a new emphasis on common viral infections as important environmental factors in the pathogenesis of complex diseases, and they compel the field to pursue a better understanding of host interactions with the human virome.
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References
Leland, D. S. & Ginocchio, C. C. Role of cell culture for virus detection in the age of technology. Clin. Microbiol. Rev. 20, 49–78 (2007).
Mullis, K. B. & Faloona, F. A. Specific synthesis of DNA in vitro via a polymerase-catalyzed chain reaction. Meth. Enzymol. 155, 335–350 (1987).
Mackay, I. M., Mackay, J. F., Nissen, M. D. & Sloots, T. P. in Real-time PCR in Microbiology: From Diagnosis to Characterisation (ed. Mackay, I. M.) 1–40 (Caister Academic Press, Norfolk, UK, 2007).
Monto, A. S. & Cavallaro, J. J. The Tecumseh study of respiratory illness. II. Patterns of occurrence of infection with respiratory pathogens, 1965–1969. Am. J. Epidemiol. 94, 280–289 (1971).
Makela, M. J. et al. Viruses and bacteria in the etiology of the common cold. J. Clin. Microbiol. 36, 539–542 (1998).
Chiu, C. & Miller, S. Microarrays and deep sequencing in clinical microbiology. Microbe 6, 13–20 (2011). This review summarizes the recent technological advances in viral detection and describes examples of their use.
Wang, D. et al. Viral discovery and sequence recovery using DNA microarrays. PLoS Biol. 1, e2 (2003).
Kahn, J. Newly discovered respiratory viruses: significance and implications. Curr. Opin. Pharmacol. 7, 478–483, (2007).
Lee, W. M. et al. A diverse group of previously unrecognized human rhinoviruses are common causes of respiratory illnesses in infants. PLoS ONE 2, e966 (2007). This paper describes how genetic approaches facilitated the discovery of a new group of rhinoviruses.
Greninger, A. L. et al. The complete genome of klassevirus – a novel picornavirus in pediatric stool. Virol. J. 6, 82 (2009). This article provides an example of how deep pyrosequencing can enable the detection of previously unknown pathogens — in this case, a virus in children with gastroenteritis.
Jartti, T., Jartti, L., Peltola, V., Waris, M. & Ruuskanen, O. Identification of respiratory viruses in asymptomatic subjects: asymptomatic respiratory viral infections. Pediatr. Infect. Dis. J. 27, 1103–1107 (2008).
Fox, J. P., Cooney, M. K. & Hall, C. E. The Seattle Virus Watch. V. Epidemiologic observations of rhinovirus infections, 1965–1969, in families with young children. Am. J. Epidemiol. 101, 122–143 (1975).
Gelfand, H. M., Holguin, A. H., Marchetti, G. E. & Feorino, P. M. A continuing surveillance of enterovirus infections in healthy children in six United States cities. I. Viruses isolated during 1960 and 1961. Am. J. Hyg. 78, 358–375 (1963).
Cinek, O. et al. Longitudinal observation of enterovirus and adenovirus in stool samples from Norwegian infants with the highest genetic risk of type 1 diabetes. J. Clin. Virol. 35, 33–40 (2006).
Witso, E. et al. Predictors of sub-clinical enterovirus infections in infants: a prospective cohort study. Int. J. Epidemiol. 39, 459–468 (2010).
Witso, E. et al. High prevalence of human enterovirus a infections in natural circulation of human enteroviruses. J. Clin. Microbiol. 44, 4095–4100 (2006).
Winther, B., Hayden, F. G. & Hendley, J. O. Picornavirus infections in children diagnosed by RT-PCR during longitudinal surveillance with weekly sampling: association with symptomatic illness and effect of season. J. Med. Virol. 78, 644–650 (2006). This longitudinal study follows healthy children over three seasons and sheds light on the importance of the positive PCR tests that have been observed in cross-sectional studies in asymptomatic subjects.
Wright, P. F. et al. Comparison of results of detection of rhinovirus by PCR and viral culture in human nasal wash specimens from subjects with and without clinical symptoms of respiratory illness. J. Clin. Microbiol. 45, 2126–2129 (2007).
Jartti, T., Lehtinen, P., Vuorinen, T., Koskenvuo, M. & Ruuskanen, O. Persistence of rhinovirus and enterovirus RNA after acute respiratory illness in children. J. Med. Virol. 72, 695–699 (2004).
Peltola, V. et al. Rhinovirus transmission within families with children: incidence of symptomatic and asymptomatic infections. J. Infect. Dis. 197, 382–389 (2008). This report combines longitudinal surveillance with PCR-based testing and viral genotyping to reveal the high prevalence and spread of rhinoviruses within families.
Monto, A. S. Studies of the community and family: acute respiratory illness and infection. Epidemiol. Rev. 16, 351–373 (1994).
Barnett, A. H., Eff, C., Leslie, R. D. & Pyke, D. A. Diabetes in identical twins. A study of 200 pairs. Diabetologia 20, 87–93 (1981).
Hyttinen, V., Kaprio, J., Kinnunen, L., Koskenvuo, M. & Tuomilehto, J. Genetic liability of type 1 diabetes and the onset age among 22,650 young Finnish twin pairs: a nationwide follow-up study. Diabetes 52, 1052–1055 (2003).
Redondo, M. J. et al. Heterogeneity of type I diabetes: analysis of monozygotic twins in Great Britain and the United States. Diabetologia 44, 354–362 (2001).
Redondo, M. J., Jeffrey, J., Fain, P. R., Eisenbarth, G. S. & Orban, T. Concordance for islet autoimmunity among monozygotic twins. N. Engl. J. Med. 359, 2849–2850 (2008).
Concannon, P., Rich, S. S. & Nepom, G. T. Genetics of type IA diabetes. N. Engl. J. Med. 360, 1646–1654 (2009).
Lehuen, A., Diana, J., Zaccone, P. & Cooke, A. Immune cell crosstalk in type 1 diabetes. Nature Rev. Immunol. 10, 501–513 (2010).
Smyth, D. J. et al. A genome-wide association study of nonsynonymous SNPs identifies a type 1 diabetes locus in the interferon-induced helicase (IFIH1) region. Nature Genet. 38, 617–619 (2006).
Kato, H. et al. Differential roles of MDA5 and RIG-I helicases in the recognition of RNA viruses. Nature 441, 101–105, (2006).
Nejentsev, S., Walker, N., Riches, D., Egholm, M. & Todd, J. A. Rare variants of IFIH1, a gene implicated in antiviral responses, protect against type 1 diabetes. Science 324, 387–389 (2009).
Shigemoto, T. et al. Identification of loss of function mutations in human genes encoding RIG-I and MDA5: implications for resistance to type I diabetes. J. Biol. Chem. 284, 13348–13354 (2009).
Downes, K. et al. Reduced expression of IFIH1 is protective for type 1 diabetes. PLoS ONE 5, e12646 (2010).
Liu, S. et al. IFIH1 polymorphisms are significantly associated with type 1 diabetes and IFIH1 gene expression in peripheral blood mononuclear cells. Hum. Mol. Genet. 18, 358–365 (2009).
Heinig, M. et al. A trans-acting locus regulates an anti-viral expression network and type 1 diabetes risk. Nature 467, 460–464 (2010). This study combines GWA study data and gene expression analysis to reveal a link between T1D and a network of co-regulated immune system genes.
Honda, K. & Taniguchi, T. IRFs: master regulators of signalling by Toll-like receptors and cytosolic pattern-recognition receptors. Nature Rev. Immunol. 6, 644–658 (2006).
Yoon, J. W., Austin, M., Onodera, T. & Notkins, A. L. Isolation of a virus from the pancreas of a child with diabetic ketoacidosis. N. Engl. J. Med. 300, 1173–1179 (1979).
Jaïdane, H. et al. Enteroviruses and type 1 diabetes: towards a better understanding of the relationship. Rev. Med. Virol. 20, 265–280 (2010).
Tauriainen, S., Oikarinen, S., Oikarinen, M. & Hyöty, H. Enteroviruses in the pathogenesis of type 1 diabetes. Semin. Immunopathol. 33, 45–55 (2010).
Stene, L. C. et al. Enterovirus Infection and progression from islet autoimmunity to type 1 diabetes: the diabetes and autoimmunity study in the young (DAISY). Diabetes 59, 3174–3180 (2010).
Takeuchi, O. & Akira, S. Pattern recognition receptors and inflammation. Cell 140 805–820 (2010).
von Herrath, M. A virus–gene collaboration. Nature 459, 518–519 (2009).
Ross, M. E., Onodera, T., Brown, K. S. & Notkins, A. L. Virus-induced diabetes mellitus. IV. Genetic and environmental factors influencing the development of diabetes after infection with the M variant of encephalomyocarditis virus. Diabetes 25, 190–197 (1976).
Kruppenbacher, J. P., Mertens, T., Muntefering, H. & Eggers, H. J. Encephalomyocarditis virus and diabetes mellitus: studies on virus mutants in susceptible and non-susceptible mice. J. Gen. Virol. 66, 727–732 (1985).
Stewart, T. A. et al. Induction of type I diabetes by interferon-α in transgenic mice. Science 260 1942–1946 (1993).
Chervonsky, A. V. Influence of microbial environment on autoimmunity. Nature Immunol. 11, 28–35 (2010).
Xavier, R. J. & Podolsky, D. K. Unravelling the pathogenesis of inflammatory bowel disease. Nature 448, 427–434 (2007).
Tysk, C., Lindberg, E., Jarnerot, G. & Floderus-Myrhed, B. Ulcerative colitis and Crohn's disease in an unselected population of monozygotic and dizygotic twins. A study of heritability and the influence of smoking. Gut 29, 990–996 (1988).
Orholm, M., Binder, V., Sorensen, T. I., Rasmussen, L. P. & Kyvik, K. O. Concordance of inflammatory bowel disease among Danish twins. Results of a nationwide study. Scand. J. Gastroenterol. 35, 1075–1081 (2000).
Cho, J. H. The Nod2 gene in Crohn's disease: implications for future research into the genetics and immunology of Crohn's disease. Inflamm. Bowel Dis. 7, 271–275 (2001).
Ogura, Y. et al. A frameshift mutation in NOD2 associated with susceptibility to Crohn's disease. Nature 411, 603–606 (2001).
Hugot, J. P. et al. Association of NOD2 leucine-rich repeat variants with susceptibility to Crohn's disease. Nature 411, 599–603 (2001).
Abraham, C. & Cho, J. H. Inflammatory bowel disease. N. Engl. J. Med. 361, 2066–2078 (2009).
Parkes, M. Genome-wide meta-analysis increases to 71 the number of confirmed Crohn's disease susceptibility loci. Nature Genet. 42, 1118–1125 (2010).
Hampe, J. et al. A genome-wide association scan of nonsynonymous SNPs identifies a susceptibility variant for Crohn disease in ATG16L1. Nature Genet. 39, 207–211 (2007).
Rioux, J. D. et al. Genome-wide association study identifies new susceptibility loci for Crohn disease and implicates autophagy in disease pathogenesis. Nature Genet. 39, 596–604 (2007).
Parkes, M. et al. Sequence variants in the autophagy gene IRGM and multiple other replicating loci contribute to Crohn's disease susceptibility. Nature Genet. 39, 830–832 (2007).
McCarroll, S. A. et al. Deletion polymorphism upstream of IRGM associated with altered IRGM expression and Crohn's disease. Nature Genet. 40, 1107–1112 (2008).
Lee, H. K., Lund, J. M., Ramanathan, B., Mizushima, N. & Iwasaki, A. Autophagy-dependent viral recognition by plasmacytoid dendritic cells. Science 315, 1398–1401 (2007).
Levine, B. & Deretic, V. Unveiling the roles of autophagy in innate and adaptive immunity. Nature Rev. Immunol. 7, 767–777 (2007).
Virgin, H. W. & Levine, B. Autophagy genes in immunity. Nature Immunol. 10, 461–470 (2009).
Cooney, R. et al. NOD2 stimulation induces autophagy in dendritic cells influencing bacterial handling and antigen presentation. Nature Med. 16, 90–97 (2010).
Travassos, L. H. et al. Nod1 and Nod2 direct autophagy by recruiting ATG16L1 to the plasma membrane at the site of bacterial entry. Nature Immunol. 11, 55–62 (2010).
Saitoh, T. et al. Loss of the autophagy protein Atg16L1 enhances endotoxin-induced IL-1b production. Nature 456, 264–268 (2008).
Cadwell, K. et al. A key role for autophagy and the autophagy gene Atg16l1 in mouse and human intestinal Paneth cells. Nature 456, 259–263 (2008).
Cadwell, K. et al. Virus-plus-susceptibility gene interaction determines Crohn's disease gene Atg16L1 phenotypes in intestine. Cell 141, 1135–1145 (2010). This paper shows how a viral infection can contribute to complex disease pathogenesis in the context of a genetically predisposed host.
Karst, S. M., Wobus, C. E., Lay, M., Davidson, J. & Virgin, H. W. STAT1-dependent innate immunity to a Norwalk-like virus. Science 299, 1575–1578 (2003).
Okayasu, I. et al. A novel method in the induction of reliable experimental acute and chronic ulcerative colitis in mice. Gastroenterology 98, 694–702 (1990).
Hsu, C. C., Wobus, C. E., Steffen, E. K., Riley, L. K. & Livingston, R. S. Development of a microsphere-based serologic multiplexed fluorescent immunoassay and a reverse transcriptase PCR assay to detect murine norovirus 1 infection in mice. Clin. Diagn. Lab. Immunol. 12, 1145–1151 (2005).
Goto, K. et al. Molecular detection of murine norovirus from experimentally and spontaneously infected mice. Exp. Anim. 58, 135–140 (2009).
WHO. Global surveillance, prevention and control of chronic respiratory diseases: a comprehensive approach. (WHO, Geneva, 2007).
Robinson, D. S. et al. Predominant TH2-like bronchoalveolar T-lymphocyte population in atopic asthma. N. Engl. J. Med. 326, 298–304 (1992).
Cohn, L., Homer, R. J., Marinov, A., Rankin, J. & Bottomly, K. Induction of airway mucus production by T helper 2 (Th2) cells: a critical role for interleukin 4 in cell recruitment but not mucus production. J. Exp. Med. 186 1737–1747 (1997).
Barrett, N. A. & Austen, K. F. Innate cells and T helper 2 cell immunity in airway inflammation. Immunity 31, 425–437 (2009).
Holgate, S. T. & Davies, D. E. Rethinking the pathogenesis of asthma. Immunity 31, 362–367 (2009).
Johnston, S. L. et al. Community study of role of viral infections in exacerbations of asthma in 9–11 year old children. BMJ 310, 1225–1229 (1995). This longitudinal study provides important evidence for a role for viruses in asthma. The investigators follow children with asthma for >1 year and test respiratory specimens collected during each asthma exacerbation; 80–85% of specimens from these exacerbations were positive for viruses.
Nicholson, K. G., Kent, J. & Ireland, D. C. Respiratory viruses and exacerbations of asthma in adults. BMJ 307, 982–986 (1993).
Gern, J. E. The ABCs of rhinoviruses, wheezing, and asthma. J. Virol. 84, 7418–7426 (2010).
Leung, T. F. et al. Multiplex molecular detection of respiratory pathogens in children with asthma exacerbation. Chest 137 348–354 (2009).
Khetsuriani, N. et al. Prevalence of viral respiratory tract infections in children with asthma. J. Allergy Clin. Immunol. 119, 314–321 (2007).
Bizzintino, J. et al. Association between human rhinovirus C and severity of acute asthma in children. Eur. Respir. J. 6 Aug 2010 (doi:10.1183/09031936.00092410).
Miller, E. K. New human rhinovirus species and their significance in asthma exacerbation and airway remodeling. Immunol. Allergy Clin. North Am. 30, 541–552 (2010).
Johnston, S. L. et al. The relationship between upper respiratory infections and hospital admissions for asthma: a time-trend analysis. Am. J. Respir. Crit. Care Med. 154, 654–660 (1996).
Sears, M. R. & Johnston, N. W. Understanding the September asthma epidemic. J. Allergy Clin. Immunol. 120, 526–529 (2007).
Jackson, D. J. et al. Wheezing rhinovirus illnesses in early life predict asthma development in high-risk children. Am. J. Respir. Crit. Care Med. 178, 667–672 (2008). This report details the results of a prospective study of high-risk children from birth to age 6 years, with an analysis of the correlation between early childhood risk factors and subsequent diagnosis of asthma.
Kusel, M. et al. Early-life respiratory viral infections, atopic sensitization, and risk of subsequent development of persistent asthma. J. Allergy Clin. Immunol. 119, 1105–1110 (2007).
Lemanske, R. F. Jr. The childhood origins of asthma (COAST) study. Pediatr. Allergy Immunol. 13 (Suppl. 15), 38–43 (2002).
Bartlett, N. W., McLean, G. R., Chang, Y. S. & Johnston, S. L. Genetics and epidemiology: asthma and infection. Curr. Opin. Allergy Clin. Immunol. 9, 395–400, (2009).
Gern, J. E. Rhinovirus and the initiation of asthma. Curr. Opin. Allergy Clin. Immunol. 9, 73–78 (2009).
Corne, J. et al. Frequency, severity, and duration of rhinovirus infections in asthmatic and non-asthmatic individuals: a longitudinal cohort study. Lancet 359, 831–834 (2002).
Message, S. D. et al. Rhinovirus-induced lower respiratory illness is increased in asthma and related to virus load and Th1/2 cytokine and IL-10 production. Proc. Natl Acad. Sci. 105, 13562–13567 (2008).
Contoli, M. et al. Role of deficient type III interferon-λ production in asthma exacerbations. Nature Med. 12, 1023–1026 (2006).
Wark, P. A. B. Asthmatic bronchial epithelial cells have a deficient innate immune response to infection with rhinovirus. J. Exp. Med. 201, 937–947 (2005).
Wark, P. A. B., Grissell, T., Davies, B., See, H. & Gibson, P. G. Diversity in the bronchial epithelial cell response to infection with different rhinovirus strains. Respirology 14, 180–186 (2009).
Uller, L. et al. Double-stranded RNA induces disproportionate expression of thymic stromal lymphopoietin versus interferon-β in bronchial epithelial cells from donors with asthma. Thorax 65, 626–632 (2010).
Bosco, A., Ehteshami, S., Stern, D. A. & Martinez, F. D. Decreased activation of inflammatory networks during acute asthma exacerbations is associated with chronic airflow obstruction. Mucosal Immunol. 3, 399–409 (2010).
Blomqvist, S., Roivainen, M., Puhakka, T., Kleemola, M. & Hovi, T. Virological and serological analysis of rhinovirus infections during the first two years of life in a cohort of children. J. Med. Virol. 66, 263–268 (2002).
Savolainen, C., Mulders, M. N. & Hovi, T. Phylogenetic analysis of rhinovirus isolates collected during successive epidemic seasons. Virus Res. 85, 41–46 (2002).
Kistler, A. et al. Pan-viral screening of respiratory tract infections in adults with and without asthma reveals unexpected human coronavirus and human rhinovirus diversity. J. Infect. Dis. 196, 817–825 (2007).
Olenec, J. P. et al. Weekly monitoring of children with asthma for infections and illness during common cold seasons. J. Allergy Clin. Immunol. 125, 1001–1006.e1 (2010).
Martinez, F. D. The origins of asthma and chronic obstructive pulmonary disease in early life. Proc. Am. Thorac. Soc. 6, 272–277 (2009).
Le Souef, P. N. Gene-environmental interaction in the development of atopic asthma: new developments. Curr. Opin. Allergy Clin. Immunol. 9, 123–127 (2009).
Weiss, S. T., Raby, B. A. & Rogers, A. Asthma genetics and genomics 2009. Curr. Opin. Genet. Dev. 19, 279–282 (2009).
Wang, Q. et al. Role of double-stranded RNA pattern recognition receptors in rhinovirus-induced airway epithelial cell responses. J. Immunol. 183, 6989–6997 (2009).
Slater, L. et al. Co-ordinated role of TLR3, RIG-I and MDA5 in the innate response to rhinovirus in bronchial epithelium. PLoS Pathog. 6, e1001178 (2010).
Jartti, T. et al. Allergic sensitization is associated with rhinovirus-, but not other virus-, induced wheezing in children. Pediatr. Allergy Immunol. 21, 1008–1014 (2010).
Kloepfer, K. M. & Gern, J. E. Virus/allergen interactions and exacerbations of asthma. Immunol. Allergy. Clin. North Am. 30, 553–563 (2010).
Kim, E. Y. et al. Persistent activation of an innate immune response translates respiratory viral infection into chronic lung disease. Nature Med. 14, 633–640 (2008).
Virgin, H. W., Wherry, E. J. & Ahmed, R. Redefining chronic viral infection. Cell 138, 30–50 (2009).
Lander, E. S. et al. Initial sequencing and analysis of the human genome. Nature 409, 860–921 (2001).
Horie, M. et al. Endogenous non-retroviral RNA virus elements in mammalian genomes. Nature 463, 84–87 (2010).
Taylor, D. J., Leach, R. W. & Bruenn, J. Filoviruses are ancient and integrated into mammalian genomes. BMC Evol. Biol. 10, 193 (2010).
de Parseval, N. & Heidmann, T. Human endogenous retroviruses: from infectious elements to human genes. Cytogenet. Genome Res. 110, 318–332 (2005).
Colmegna, I. & Garry, R. F. Role of endogenous retroviruses in autoimmune diseases. Infect. Dis. Clin. North. Am. 20, 913–929 (2006).
Rolland, A. et al. The envelope protein of a human endogenous retrovirus-W family activates innate immunity through CD14/TLR4 and promotes Th1-like responses. J. Immunol. 176, 7636–7644 (2006).
Stetson, D. B., Ko, J. S., Heidmann, T. & Medzhitov, R. Trex1 prevents cell-intrinsic initiation of autoimmunity. Cell 134, 587–598 (2008).
Anderson, N. G., Gerin, J. L. & Anderson, N. L. Global screening for human viral pathogens. Emerg. Infect. Dis. 9, 768–774 (2003).
Vehik, K. & Dabelea, D. The changing epidemiology of type 1 diabetes: why is it going through the roof? Diabetes Metab. Res. Rev. 27, 3–13 (2010).
Loftus, E. V. Jr, Schoenfeld, P. & Sandborn, W. J. The epidemiology and natural history of Crohn's disease in population-based patient cohorts from North America: a systematic review. Aliment. Pharmacol. Ther. 16, 51–60 (2002).
Eder, W., Ege, M. J. & von Mutius, E. The asthma epidemic. N. Engl. J. Med. 355, 2226–2235 (2006).
Acknowledgements
This work was supported by awards from the US National Institutes of Health (NIH) (AI054359, AI062428, AI064705, AI083242 and AI081884). A.I. holds an Investigators in Pathogenesis of Infectious Disease Award from the Burroughs Wellcome Fund.
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Glossary
- Deep pyrosequencing
-
A technique for reading thousands to millions of short DNA sequences in parallel from a single sample.
- Index case
-
The first person to get a disease. Often, this represents the first person in an epidemic or a chain of transmission for the disease.
- Genome-wide association study
-
A study designed to identify genetic polymorphisms within a population that are associated with a disease phenotype.
- Single-nucleotide polymorphism
-
A single nucleotide in the human genome sequence that differs from that found in other members of the population (or that found on the other allele in the same individual).
- RIG-I-like receptor
-
One of a family of pattern recognition receptors, including RIG-I and MDA5, that can detect RNA associated with viral infection, such as the viral RNA genomes and viral replication intermediates.
- Type I interferon
-
An interferon (IFN) that is produced and secreted in response to cellular stimuli associated with viral infection. Type I IFNs are important mediators of the innate antiviral immune response and include IFNα proteins and IFNβ proteins.
- Interferon regulatory factor 7
-
A key transcription factor in the antiviral immune response pathway that transmits the signal from pattern recognition receptors to induce transcription of type I interferon genes.
- Toll-like receptor
-
One of a family of pattern recognition receptors that recognize pathogen-associated molecular patterns, such as bacterial cell wall components or viral nucleic acids.
- Interferon-stimulated gene
-
A gene that is upregulated by the signalling pathway initiated when type I interferons (IFNs) bind their receptor on the cell surface. Over 300 of these genes have been described, some of which have been shown to play important parts in the antiviral response.
- Odds ratio
-
The ratio comparing the likelihood of an outcome (for example, a disease) between two groups (for example, cases and controls). It is measured as the ratio of the odds in one group to the odds in the other group and can be calculated as p(1–q) / q(1–p), in which p is the probability of the event occurring for the first group and q, the probability for the second group.
- Aeroallergen
-
An airborne allergen that can trigger an allergic reaction. Common aeroallergens are pollen and spores.
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Foxman, E., Iwasaki, A. Genome–virome interactions: examining the role of common viral infections in complex disease. Nat Rev Microbiol 9, 254–264 (2011). https://doi.org/10.1038/nrmicro2541
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DOI: https://doi.org/10.1038/nrmicro2541
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