Equine Infectious Anemia Virus (EIAV): what has HIV’s country cousin got to tell us?
Abstract: Equine Infectious Anemia Virus (EIAV) is a lentivirus, of the Retrovirus family, with an almost worldwide distribution, infecting equids. It causes a persistent infection characterized by recurring febrile episodes associating viremia, fever, thrombocytopenia, and wasting symptoms. The disease is experimentally reproducible by inoculation of Shetland ponies or horses with EIAV pathogenic strains. Among lentiviruses, EIAV is unique in that, despite a rapid virus replication and antigenic variation, most animals progress from a chronic stage characterized by recurring peaks of viremia and fever to an asymptomatic stage of infection. The inapparent carriers remain infective for life, as demonstrated by experimental transfer of blood to naive animals. The understanding of the correlates of this immune control is of great interest in defining vaccine strategies. Research on EIAV, this "country cousin" of HIV (Human Immunodeficiency Virus), over the last five decades has produced some interesting results on natural immunological control of lentivirus replication and disease and on the nature and role of virus variation in persistence and pathogenesis. These studies are of interest in the context of HIV and efforts to develop a vaccine. This review will focus on some of the most recent results.
Publication Date: 2004-07-09 PubMed ID: 15236678DOI: 10.1051/vetres:2004020Google Scholar: Lookup
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Summary
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The research article delves into the role and characteristics of the Equine Infectious Anemia Virus (EIAV), a lentivirus that infects equids or horse-like animals worldwide. This study elucidates the virus’s unique behavior and its potential relevance to HIV research.
Background
- EIAV is part of the Retrovirus family like HIV, but it specifically infects equids, such as horses and ponies.
- Also akin to HIV, EIAV can result in a prolonged infection that cycles through phases of virus activity, fever, thrombocytopenia (a deficiency of platelets in the blood) and weight-loss symptoms.
- The disease can be experimentally reproduced in Shetland ponies or horses by using pathogenic strains of EIAV.
Unique Characteristics of EIAV
- Despite rapid virus replication and variation in antigen (a toxin or foreign substance that induces an immune response), most infected animals transition from a chronic stage featuring repeated viremia and fever to an asymptomatic stage.
- The said asymptomatic stage does not mean the animal is free from infection. The infected carriers can remain infectious for life, which can be proven by transferring blood to uninfected animals.
Significance of the Study
- The understanding of how an animal’s immune system can control EIAV despite the virus’s aggressive replication and antigenic variability is incredibly beneficial for vaccine strategies.
- Over the last five decades, research on EIAV, referred to as the “country cousin” of HIV, has provided valuable insights into natural immunological control of lentivirus replication and disease, and the role of virus variation in persistence and pathology.
- EIAV studies are an area of interest because of their potential relevance in HIV research and vaccine development. This review will shed light on the most recent findings in this context.
Cite This Article
APA
Leroux C, Cadoré JL, Montelaro RC.
(2004).
Equine Infectious Anemia Virus (EIAV): what has HIV’s country cousin got to tell us?
Vet Res, 35(4), 485-512.
https://doi.org/10.1051/vetres:2004020 Publication
Researcher Affiliations
- UMR754 INRA-UCBL-ENVL Rétrovirus et Pathologie Comparée, IFR128, Université Claude Bernard Lyon I, 50 avenue Tony Garnier, 69007 Lyon, France. caroline.leroux@univ-lyon1.fr
MeSH Terms
- Animals
- Equine Infectious Anemia / immunology
- Equine Infectious Anemia / prevention & control
- Equine Infectious Anemia / virology
- Horses
- Infectious Anemia Virus, Equine / genetics
- Infectious Anemia Virus, Equine / pathogenicity
- Phylogeny
- Viral Vaccines
Citations
This article has been cited 61 times.- Kemeter LM, Birzer A, Heym S, Thoma-Kress AK. Milk Transmission of Mammalian Retroviruses.. Microorganisms 2023 Jul 8;11(7).
- Wang XF, Zhang X, Ma W, Li J, Wang X. Host cell restriction factors of equine infectious anemia virus.. Virol Sin 2023 Aug;38(4):485-496.
- Hull-Nye D, Meadows T, Smith SR, Schwartz EJ. Key Factors and Parameter Ranges for Immune Control of Equine Infectious Anemia Virus Infection.. Viruses 2023 Mar 6;15(3).
- Li J, Zhang X, Bai B, Zhang M, Ma W, Lin Y, Wang X, Wang XF. Identification of a Novel Post-transcriptional Transactivator from the Equine Infectious Anemia Virus.. J Virol 2022 Dec 21;96(24):e0121022.
- Duan Y, Wang X, Sun K, Lin Y, Wang X, Chen K, Yang G, Wang X, Du C. SYNJ2BP Improves the Production of Lentiviral Envelope Protein by Facilitating the Formation of Mitochondrion-Associated Endoplasmic Reticulum Membrane.. J Virol 2022 Oct 26;96(20):e0054922.
- Zhang X, Li J, Zhang M, Bai B, Ma W, Lin Y, Guo X, Wang XF, Wang X. A Novel, Fully Spliced, Accessory Gene in Equine Lentivirus with Distinct Rev-Responsive Element.. J Virol 2022 Sep 28;96(18):e0098622.
- Cardenas NC, Sanchez F, Lopes FPN, Machado G. Coupling spatial statistics with social network analysis to estimate distinct risk areas of disease circulation to improve risk-based surveillance.. Transbound Emerg Dis 2022 Sep;69(5):e2757-e2768.
- Schwartz EJ, Costris-Vas C, Smith SR. Modelling Mutation in Equine Infectious Anemia Virus Infection Suggests a Path to Viral Clearance with Repeated Vaccination.. Viruses 2021 Dec 6;13(12).
- Pouya FD, Rasmi Y, Gazouli M, Zografos E, Nemati M. MicroRNAs as therapeutic targets in breast cancer metastasis.. Drug Deliv Transl Res 2022 May;12(5):1029-1046.
- Uversky VN. On the irrationality of rational design of an HIV vaccine in light of protein intrinsic disorder.. Arch Virol 2021 May;166(5):1283-1296.
- Dasgupta I, Chatterjee A. Recent Advances in miRNA Delivery Systems.. Methods Protoc 2021 Jan 20;4(1).
- Câmara RJF, Bueno BL, Resende CF, Balasuriya UBR, Sakamoto SM, Reis JKPD. Viral Diseases that Affect Donkeys and Mules.. Animals (Basel) 2020 Nov 25;10(12).
- Ren H, Yin X, Su C, Guo M, Wang XF, Na L, Lin Y, Wang X. Equine lentivirus counteracts SAMHD1 restriction by Rev-mediated degradation of SAMHD1 via the BECN1-dependent lysosomal pathway.. Autophagy 2021 Oct;17(10):2800-2817.
- Munis AM. Gene Therapy Applications of Non-Human Lentiviral Vectors.. Viruses 2020 Sep 29;12(10).
- Malossi CD, Fioratti EG, Cardoso JF, Magro AJ, Kroon EG, Aguiar DM, Borges AMCM, Nogueira MF, Ullmann LS, Araujo JP Jr. High Genomic Variability in Equine Infectious Anemia Virus Obtained from Naturally Infected Horses in Pantanal, Brazil: An Endemic Region Case.. Viruses 2020 Feb 12;12(2).
- Dick RA, Xu C, Morado DR, Kravchuk V, Ricana CL, Lyddon TD, Broad AM, Feathers JR, Johnson MC, Vogt VM, Perilla JR, Briggs JAG, Schur FKM. Structures of immature EIAV Gag lattices reveal a conserved role for IP6 in lentivirus assembly.. PLoS Pathog 2020 Jan;16(1):e1008277.
- Du C, Duan Y, Wang XF, Lin Y, Na L, Wang X, Chen K, Wang X. Attenuation of Equine Lentivirus Alters Mitochondrial Protein Expression Profile from Inflammation to Apoptosis.. J Virol 2019 Nov 1;93(21).
- Goh GK, Dunker AK, Foster JA, Uversky VN. HIV Vaccine Mystery and Viral Shell Disorder.. Biomolecules 2019 May 8;9(5).
- Peterson TA, MacLean AG. Current and Future Therapeutic Strategies for Lentiviral Eradication from Macrophage Reservoirs.. J Neuroimmune Pharmacol 2019 Mar;14(1):68-93.
- Ji S, Na L, Ren H, Wang Y, Wang X. Equine Myxovirus Resistance Protein 2 Restricts Lentiviral Replication by Blocking Nuclear Uptake of Capsid Protein.. J Virol 2018 Sep 15;92(18).
- Wang HN, Rao D, Fu XQ, Hu MM, Dong JG. Equine infectious anemia virus in China.. Oncotarget 2018 Jan 2;9(1):1356-1364.
- Sharav T, Konnai S, Ochirkhuu N, Ts EO, Mekata H, Sakoda Y, Umemura T, Murata S, Chultemdorj T, Ohashi K. Detection and molecular characterization of equine infectious anemia virus in Mongolian horses.. J Vet Med Sci 2017 Nov 17;79(11):1884-1888.
- White M, Whittaker R, Gándara C, Stoll EA. A Guide to Approaching Regulatory Considerations for Lentiviral-Mediated Gene Therapies.. Hum Gene Ther Methods 2017 Aug;28(4):163-176.
- Herrera-Carrillo E, Liu YP, Berkhout B. Improving miRNA Delivery by Optimizing miRNA Expression Cassettes in Diverse Virus Vectors.. Hum Gene Ther Methods 2017 Aug;28(4):177-190.
- Nardini R, Autorino GL, Issel CJ, Cook RF, Ricci I, Frontoso R, Rosone F, Scicluna MT. Evaluation of six serological ELISA kits available in Italy as screening tests for equine infectious anaemia surveillance.. BMC Vet Res 2017 Apr 14;13(1):105.
- Liu Q, Ma J, Wang XF, Xiao F, Li LJ, Zhang JE, Lin YZ, Du C, He XJ, Wang X, Zhou JH. Infection with equine infectious anemia virus vaccine strain EIAVDLV121 causes no visible histopathological lesions in target organs in association with restricted viral replication and unique cytokine response.. Vet Immunol Immunopathol 2016 Feb;170:30-40.
- Zhang Z, Ma J, Zhang X, Su C, Yao QC, Wang X. Equine Infectious Anemia Virus Gag Assembly and Export Are Directed by Matrix Protein through trans-Golgi Networks and Cellular Vesicles.. J Virol 2016 Feb 15;90(4):1824-38.
- Nguyen XN, Barateau V, Wu N, Berger G, Cimarelli A. The Frequency of Cytidine Editing of Viral DNA Is Differentially Influenced by Vpx and Nucleosides during HIV-1 or SIVMAC Infection of Dendritic Cells.. PLoS One 2015;10(10):e0140561.
- Schwartz EJ, Smith RJ. Identifying the Conditions Under Which Antibodies Protect Against Infection by Equine Infectious Anemia Virus.. Vaccines (Basel) 2014 May 27;2(2):397-421.
- Duan L, Du J, Liu X. Insights into vaccine development for acquired immune deficiency syndrome from crystal structures of human immunodeficiency virus-1 gp41 and equine infectious anemia virus gp45.. Protein Sci 2015 Oct;24(10):1549-59.
- Liu Q, Wang XF, Ma J, He XJ, Wang XJ, Zhou JH. Characterization of Equine Infectious Anemia Virus Integration in the Horse Genome.. Viruses 2015 Jun 19;7(6):3241-60.
- Du C, Ma J, Liu Q, Li YF, He XJ, Lin YZ, Wang XF, Meng QW, Wang X, Zhou JH. Mice transgenic for equine cyclin T1 and ELR1 are susceptible to equine infectious anemia virus infection.. Retrovirology 2015 Apr 28;12:36.
- Schwartz EJ, Nanda S, Mealey RH. Antibody escape kinetics of equine infectious anemia virus infection of horses.. J Virol 2015 Jul;89(13):6945-51.
- Craigo JK, Ezzelarab C, Cook SJ, Liu C, Horohov D, Issel CJ, Montelaro RC. Protective efficacy of centralized and polyvalent envelope immunogens in an attenuated equine lentivirus vaccine.. PLoS Pathog 2015 Jan;11(1):e1004610.
- Wang XF, Wang S, Liu Q, Lin YZ, Du C, Tang YD, Na L, Wang X, Zhou JH. A unique evolution of the s2 gene of equine infectious anemia virus in hosts correlated with particular infection statuses.. Viruses 2014 Nov 10;6(11):4265-79.
- Tang YD, Na L, Zhu CH, Shen N, Yang F, Fu XQ, Wang YH, Fu LH, Wang JY, Lin YZ, Wang XF, Wang X, Zhou JH, Li CY. Equine viperin restricts equine infectious anemia virus replication by inhibiting the production and/or release of viral Gag, Env, and receptor via distortion of the endoplasmic reticulum.. J Virol 2014 Nov;88(21):12296-310.
- Ma J, Wang SS, Lin YZ, Liu HF, Liu Q, Wei HM, Wang XF, Wang YH, Du C, Kong XG, Zhou JH, Wang X. Infection of equine monocyte-derived macrophages with an attenuated equine infectious anemia virus (EIAV) strain induces a strong resistance to the infection by a virulent EIAV strain.. Vet Res 2014 Aug 9;45(1):82.
- Du J, Wang X, Ma J, Wang J, Qin Y, Zhu C, Liu F, Shao Y, Zhou J, Qiao W, Liu X. Structural and biochemical insights into the V/I505T mutation found in the EIAV gp45 vaccine strain.. Retrovirology 2014 Mar 21;11:26.
- Yin X, Lin Y, Cai W, Wei P, Wang X. Comprehensive analysis of the overall codon usage patterns in equine infectious anemia virus.. Virol J 2013 Dec 20;10:356.
- Lin YZ, Yang F, Zhang SQ, Sun LK, Wang XF, Du C, Zhou JH. The soluble form of the EIAV receptor encoded by an alternative splicing variant inhibits EIAV infection of target cells.. PLoS One 2013;8(11):e79299.
- Yin X, Hu Z, Gu Q, Wu X, Zheng YH, Wei P, Wang X. Equine tetherin blocks retrovirus release and its activity is antagonized by equine infectious anemia virus envelope protein.. J Virol 2014 Jan;88(2):1259-70.
- Baldacchino F, Muenworn V, Desquesnes M, Desoli F, Charoenviriyaphap T, Duvallet G. Transmission of pathogens by Stomoxys flies (Diptera, Muscidae): a review.. Parasite 2013;20:26.
- Craigo JK, Ezzelarab C, Cook SJ, Chong L, Horohov D, Issel CJ, Montelaro RC. Envelope determinants of equine lentiviral vaccine protection.. PLoS One 2013;8(6):e66093.
- Sanou MP, De Groot AS, Murphey-Corb M, Levy JA, Yamamoto JK. HIV-1 Vaccine Trials: Evolving Concepts and Designs.. Open AIDS J 2012;6:274-88.
- Yuan Q, Liu C, Liang Z, Chen X, Diao D, Kong X. The comparison of genetic variation in the envelope protein between various immunodeficiency viruses and equine infectious anemia virus.. Virol Sin 2012 Aug;27(4):241-7.
- Craigo JK, Ezzelarab C, Montelaro RC. Development of a high throughput, semi-automated, infectious center cell-based ELISA for equine infectious anemia virus.. J Virol Methods 2012 Nov;185(2):221-7.
- Liu C, Cook FR, Cook SJ, Craigo JK, Even DL, Issel CJ, Montelaro RC, Horohov DW. The determination of in vivo envelope-specific cell-mediated immune responses in equine infectious anemia virus-infected ponies.. Vet Immunol Immunopathol 2012 Aug 15;148(3-4):302-10.
- Jouvenet N. Dynamics of ESCRT proteins.. Cell Mol Life Sci 2012 Dec;69(24):4121-33.
- Durand S, Cimarelli A. The inside out of lentiviral vectors.. Viruses 2011 Feb;3(2):132-159.
- Xue B, Mizianty MJ, Kurgan L, Uversky VN. Protein intrinsic disorder as a flexible armor and a weapon of HIV-1.. Cell Mol Life Sci 2012 Apr;69(8):1211-59.
- Asseged BD, Habtemariam T, Tameru B, Nganwa D. The risk of introduction of equine infectious anemia virus into USA via cloned horse embryos imported from Canada.. Theriogenology 2012 Jan 15;77(2):445-58.
- Lang J, Li MY. Stable and transient periodic oscillations in a mathematical model for CTL response to HTLV-I infection.. J Math Biol 2012 Jul;65(1):181-99.
- Sun PL, Lv SX, Zhou JH, Liu XQ. Cloning, expression and preliminary crystallographic analysis of the equine infectious anaemia virus (EIAV) gp45 ectodomain.. Acta Crystallogr Sect F Struct Biol Cryst Commun 2011 Apr 1;67(Pt 4):482-5.
- Wang X, Wang S, Lin Y, Jiang C, Ma J, Zhao L, Lv X, Wang F, Shen R, Zhou J. Unique evolution characteristics of the envelope protein of EIAV(LN₄₀), a virulent strain of equine infectious anemia virus.. Virus Genes 2011 Apr;42(2):220-8.
- Liu L, Wan Y, Wu L, Sun J, Li H, Li H, Ma L, Shao Y. Broader HIV-1 neutralizing antibody responses induced by envelope glycoprotein mutants based on the EIAV attenuated vaccine.. Retrovirology 2010 Sep 1;7:71.
- Qi X, Wang X, Wang S, Lin Y, Jiang C, Ma J, Zhao L, Lv X, Shen R, Wang F, Kong X, Su Z, Zhou J. Genomic analysis of an effective lentiviral vaccine-attenuated equine infectious anemia virus vaccine EIAV FDDV13.. Virus Genes 2010 Aug;41(1):86-98.
- Covaleda L, Fuller FJ, Payne SL. EIAV S2 enhances pro-inflammatory cytokine and chemokine response in infected macrophages.. Virology 2010 Feb 5;397(1):217-23.
- Craigo JK, Barnes S, Zhang B, Cook SJ, Howe L, Issel CJ, Montelaro RC. An EIAV field isolate reveals much higher levels of subtype variability than currently reported for the equine lentivirus family.. Retrovirology 2009 Oct 20;6:95.
- Zielonka J, Bravo IG, Marino D, Conrad E, Perković M, Battenberg M, Cichutek K, Münk C. Restriction of equine infectious anemia virus by equine APOBEC3 cytidine deaminases.. J Virol 2009 Aug;83(15):7547-59.
- Goh GK, Dunker AK, Uversky VN. A comparative analysis of viral matrix proteins using disorder predictors.. Virol J 2008 Oct 23;5:126.
- Bogerd HP, Tallmadge RL, Oaks JL, Carpenter S, Cullen BR. Equine infectious anemia virus resists the antiretroviral activity of equine APOBEC3 proteins through a packaging-independent mechanism.. J Virol 2008 Dec;82(23):11889-901.
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