title: Changes in the cellular proteins of A549 infected with hepatitis E virus by proteomics analysis.
abstract: BACKGROUND
  Our understanding of Hepatitis E virus (HEV) has changed enormously over the past 30 years, from a waterborne infection causing outbreaks of acute hepatitis in developing countries to an infection of global distribution causing a range of hepatic and extra-hepatic illness. However, the key proteins playing important parts in the virus infection were still unknown. Understanding the changes of cellular proteins in these cells exposed to HEV is helpful for elucidating molecular mechanisms associated with function alterations of HEV-infected susceptible cells. In the present study, a comparative gel-based proteomic analysis was employed to study the changes in cellular proteins of A549 exposed to HEV in vitro to provide novel information for understanding the functional alterations of A549 induced by HEV infection.
  
  
  RESULTS
  Of 2 585-3 152 protein spots visualized on each gel using silver staining, a total of 31 protein spots were found to be differentially expressed in HEV-infected A549 cells compared with mock-infected A549, including 10 significantly up-regulated protein spots and 21 significantly down-regulated protein spots.
  
  
  CONCLUSIONS
  Our work is the first time regarding the proteomic analysis on the cellular responses to HEV infection. This work is helpful for investigating the molecular basis associated with the interaction between HEV and the host cells although more efforts should be required to discover the mechanisms.
authors.forename: Quan
authors.initials: Q
authors.lastname: Shen
authors.forename: Yingyan
authors.initials: Y
authors.lastname: Pu
authors.forename: Xingli
authors.initials: X
authors.lastname: Fu
authors.forename: Ying
authors.initials: Y
authors.lastname: Xie
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Bian
authors.forename: Shixing
authors.initials: S
authors.lastname: Yang
authors.forename: Yan
authors.initials: Y
authors.lastname: Yang
authors.forename: Li
authors.initials: L
authors.lastname: Cui
authors.forename: Xiaochun
authors.initials: X
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Wang
authors.affiliation: School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, PR China. z0216wen@ujs.edu.cn.
authors.forename: Wen
authors.initials: W
authors.lastname: Zhang
mesh_terms: D045744:Cell Line, Tumor; D030541:Databases, Genetic; D015180:Electrophoresis, Gel, Two-Dimensional; D005786:Gene Expression Regulation / Q000276:immunology*; D005838:Genotype; D016752:Hepatitis E virus / Q000235:genetics / Q000502:physiology*; D006801:Humans; D015151:Immunoblotting; D013058:Mass Spectrometry; D046529:Microscopy, Electron, Transmission; D040901:Proteomics / Q000379:methods*; D012367:RNA, Viral / Q000302:isolation & purification
chemical_list: D012367:RNA, Viral