title: Helicobacter pylori-associated oxidant monochloramine induces reactivation of Epstein-Barr virus (EBV) in gastric epithelial cells latently infected with EBV.
abstract: To investigate the possibility of an interaction between two ubiquitous human pathogens, Helicobacter pylori and Epstein-Barr virus (EBV), the effect of monochloramine (NH2Cl), locally produced by H. pylori infection, on gastric epithelium latently infected with EBV was examined, by assessing the induction of EBV lytic infection. AGS cells harbouring latently infected EBV were used as the indicator of lytic change caused by NH2Cl treatment. Lytic infection, determined by morphological change and EA-D antigen expression, occurred immediately after treatment with in vitro-synthesized NH2Cl. Analysis of EBV infection in human gastric tissue revealed that out of 48 H. pylori-positive patients, 24 were positive for EBER-1, and 18 and 13 were positive for EBNA1 and LMP-1 antigen, respectively. The results suggest that H. pylori-associated NH2Cl induces EBV lytic conversion in gastric epithelium latently infected with EBV.
authors.forename: Junko
authors.initials: J
authors.lastname: Minoura-Etoh
authors.forename: Kazuyo
authors.initials: K
authors.lastname: Gotoh
authors.forename: Ryugo
authors.initials: R
authors.lastname: Sato
authors.forename: Masao
authors.initials: M
authors.lastname: Ogata
authors.forename: Naomi
authors.initials: N
authors.lastname: Kaku
authors.forename: Toshio
authors.initials: T
authors.lastname: Fujioka
authors.forename: Akira
authors.initials: A
authors.lastname: Nishizono
mesh_terms: D000956:Antigens, Viral / Q000096:biosynthesis; D001706:Biopsy; D045744:Cell Line, Tumor; D002700:Chloramines / Q000378:metabolism / Q000494:pharmacology*; D004847:Epithelial Cells / Q000382:microbiology / Q000821:virology; D020031:Epstein-Barr Virus Infections / Q000382:microbiology* / Q000821:virology; D019309:Epstein-Barr Virus Nuclear Antigens / Q000096:biosynthesis; D005434:Flow Cytometry; D016481:Helicobacter Infections / Q000382:microbiology / Q000821:virology*; D016480:Helicobacter pylori / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*; D004854:Herpesvirus 4, Human / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D007150:Immunohistochemistry; D012367:RNA, Viral / Q000096:biosynthesis; D013270:Stomach / Q000166:cytology / Q000382:microbiology / Q000821:virology; D013272:Stomach Diseases / Q000382:microbiology* / Q000821:virology*; D014763:Viral Matrix Proteins / Q000096:biosynthesis
chemical_list: D000956:Antigens, Viral; D002700:Chloramines; C037662:EBV-associated membrane antigen, Epstein-Barr virus; D019309:Epstein-Barr Virus Nuclear Antigens; C099537:Epstein-Barr virus encoded RNA 1; C106732:Epstein-Barr virus encoded RNA 2; D012367:RNA, Viral; D014763:Viral Matrix Proteins; C030816:chloramine; C417029:EBV-encoded nuclear antigen 1