title: Proteomic analysis of chikungunya virus infected microgial cells.
abstract: Chikungunya virus (CHIKV) is a recently re-emerged public health problem in many countries bordering the Indian Ocean and elsewhere. Chikungunya fever is a relatively self limiting febrile disease, but the consequences of chikungunya fever can include a long lasting, debilitating arthralgia, and occasional neurological involvement has been reported. Macrophages have been implicated as an important cell target of CHIKV with regards to both their role as an immune mediator, as well evidence pointing to long term viral persistence in these cells. Microglial cells are the resident brain macrophages, and so this study sought to define the proteomic changes in a human microglial cell line (CHME-5) in response to CHIKV infection. GeLC-MS/MS analysis of CHIKV infected and mock infected cells identified some 1455 individual proteins, of which 90 proteins, belonging to diverse cellular pathways, were significantly down regulated at a significance level of p<0.01. Analysis of the protein profile in response to infection did not support a global inhibition of either normal or IRES-mediated translation, but was consistent with the targeting of specific cellular pathways including those regulating innate antiviral mechanisms.
authors.affiliation: Molecular Pathology Laboratory, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand.
authors.forename: Bizunesh
authors.initials: B
authors.lastname: Abere
authors.forename: Nitwara
authors.initials: N
authors.lastname: Wikan
authors.forename: Sukathida
authors.initials: S
authors.lastname: Ubol
authors.forename: Prasert
authors.initials: P
authors.lastname: Auewarakul
authors.forename: Atchara
authors.initials: A
authors.lastname: Paemanee
authors.forename: Suthathip
authors.initials: S
authors.lastname: Kittisenachai
authors.forename: Sittiruk
authors.initials: S
authors.lastname: Roytrakul
authors.forename: Duncan R
authors.initials: DR
authors.lastname: Smith
mesh_terms: D018354:Alphavirus Infections / Q000378:metabolism; D002460:Cell Line; D002646:Chikungunya virus / Q000502:physiology*; D015180:Electrophoresis, Gel, Two-Dimensional; D005434:Flow Cytometry; D006801:Humans; D013058:Mass Spectrometry; D017628:Microglia / Q000378:metabolism* / Q000821:virology*; D040901:Proteomics / Q000379:methods*