Journal
JOURNAL OF VIROLOGICAL METHODS
Volume 151, Issue 1, Pages 7-14Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jviromet.2008.04.005
Keywords
HCMV; cytomegalovirus; phage display; antibody response; antigen discovery
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Human cytomegalovirus (HCMV), a ubiquitous herpesvirus, is the main cause of congenital abnormalities and mental retardation in newborns and is also responsible for severe life-threatening complications in immunocompromised individuals, including AIDS patients and transplant recipients. The disorders generated by cytomegalovirus are closely associated with the competence of the host immune system and both humoral and cell-mediated mechanisms are involved in the response to viral infection. To identify viral proteins recognized by host antibody responses, a cytomegalovirus genome library was created and displayed on lambda bacteriophage. The challenge of such a library with sera from individuals with congenital or acquired infection allowed the identification of a wide panel of recombinant bacteriophages carrying cytomegalovirus B cell epitopes. Epitope-containing fragments within the families of tegument proteins (pUL25, pUL32), structural proteins (pUL48, pUL56) and glycoproteins (pUL55) were identified. Moreover, library screening permitted isolation of phage clones carrying an antigenic region of an uncharacterized HCMV protein encoded by the UL71 open reading frame (ORF), highlighting the potential of lambda display technology in antigen and epitope discovery. (C) 2008 Elsevier B.V. All rights reserved.
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