title: Identification of RNA helicases in human immunodeficiency virus 1 (HIV-1) replication - a targeted small interfering RNA library screen using pseudotyped and WT HIV-1.
abstract: Central to the development of new treatments for human immunodeficiency virus 1 (HIV-1) is a more thorough understanding of the viral life cycle and the cellular cofactors upon which this depends. Targeting cellular proteins and their interaction with HIV-1 has the potential to reduce the problem of emerging viral resistance to drugs as mutational escape is more difficult. We performed a short interfering RNA (siRNA) library screen targeting 59 cellular RNA helicases, assessing the effect on both viral capsid protein production and infectious virion formation. Five RNA helicases were identified which, when knocked down, reproducibly decreased infectious particle production: DDX5, DDX10, DDX17, DDX28 and DDX52. Two of these proteins (DDX5 and DDX17) have known roles in HIV-1 replication. A further helicase (DDX10) was a positive hit from a previous genome-wide siRNA screen; however, DDX28 and DDX52 have not previously been implicated as essential cofactors for HIV-1.
authors.affiliation: Department of Medicine, University of Cambridge, Cambridge, UK.
authors.forename: Claire A
authors.initials: CA
authors.lastname: Williams
authors.affiliation: Department of Medicine, University of Cambridge, Cambridge, UK.
authors.forename: Truus E M
authors.initials: TEM
authors.lastname: Abbink
authors.affiliation: Department of Medicine, University of Cambridge, Cambridge, UK.
authors.forename: Kuan-Teh
authors.initials: KT
authors.lastname: Jeang
authors.affiliation: Department of Medicine, University of Cambridge, Cambridge, UK.
authors.forename: Andrew M L
authors.initials: AML
authors.lastname: Lever
mesh_terms: D055785:Gene Knockdown Techniques; D005820:Genetic Testing; D015497:HIV-1 / Q000201:enzymology* / Q000235:genetics / Q000502:physiology*; D054884:Host-Pathogen Interactions; D006801:Humans; D020365:RNA Helicases / Q000235:genetics / Q000378:metabolism*; D034741:RNA, Small Interfering / Q000235:genetics / Q000378:metabolism; D014779:Virus Replication
chemical_list: D034741:RNA, Small Interfering; D020365:RNA Helicases