Ataxia telangiectasia mutated kinase controls chronic gammaherpesvirus infection. J Virol 2012 Dec;86(23):12826-37
Date
09/21/2012Pubmed ID
22993144Pubmed Central ID
PMC3497635DOI
10.1128/JVI.00917-12Scopus ID
2-s2.0-84869205619 (requires institutional sign-in at Scopus site) 33 CitationsAbstract
Gammaherpesviruses, such as Epstein-Barr virus (EBV), are ubiquitous cancer-associated pathogens that interact with DNA damage response, a tumor suppressor network. Chronic gammaherpesvirus infection and pathogenesis in a DNA damage response-insufficient host are poorly understood. Ataxia-telangiectasia (A-T) is associated with insufficiency of ataxia-telangiectasia mutated (ATM), a critical DNA damage response kinase. A-T patients display a pattern of anti-EBV antibodies suggestive of poorly controlled EBV replication; however, parameters of chronic EBV infection and pathogenesis in the A-T population remain unclear. Here we demonstrate that chronic gammaherpesvirus infection is poorly controlled in an animal model of A-T. Intriguingly, in spite of a global increase in T cell activation and numbers in wild-type (wt) and ATM-deficient mice in response to mouse gammaherpesvirus 68 (MHV68) infection, the generation of an MHV68-specific immune response was altered in the absence of ATM. Our finding that ATM expression is necessary for an optimal adaptive immune response against gammaherpesvirus unveils an important connection between DNA damage response and immune control of chronic gammaherpesvirus infection, a connection that is likely to impact viral pathogenesis in an ATM-insufficient host.
Author List
Kulinski JM, Leonardo SM, Mounce BC, Malherbe L, Gauld SB, Tarakanova VLAuthor
Vera Tarakanova PhD Professor in the Microbiology and Immunology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AnimalsAtaxia Telangiectasia
Ataxia Telangiectasia Mutated Proteins
Cell Cycle Proteins
Cell Line
DNA Damage
DNA-Binding Proteins
Flow Cytometry
Gammaherpesvirinae
Herpesviridae Infections
Lymphocyte Activation
Mice
Polymerase Chain Reaction
T-Lymphocytes
Tumor Suppressor Proteins
