Comprehensive identification of host modulators of HIV-1 replication using multiple orthologous RNAi reagents
Zhu, Jian ; Perreira, Jill ; Chin, Christopher R. ; Baker, Richard E. ; Maranda, Louise ; Elledge, Stephen J. ; Brass, Abraham L.
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Algorithms
Carrier Proteins
Cell Cycle Proteins
HEK293 Cells
HIV-1
HeLa Cells
High-Throughput Screening Assays
*Host-Pathogen Interactions
Humans
Jurkat Cells
Nuclear Proteins
*RNA Interference
*Virus Replication
Amino Acids, Peptides, and Proteins
Biochemistry
Cellular and Molecular Physiology
Computational Biology
Genetics and Genomics
Virology
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Abstract
RNAi screens have implicated hundreds of host proteins as HIV-1 dependency factors (HDFs). While informative, these early studies overlap poorly due to false positives and false negatives. To ameliorate these issues, we combined information from the existing HDF screens together with new screens performed with multiple orthologous RNAi reagents (MORR). In addition to being traditionally validated, the MORR screens and the historical HDF screens were quantitatively integrated by the adaptation of an established analysis program, RIGER, for the collective interpretation of each gene's phenotypic significance. False positives were addressed by the removal of poorly expressed candidates through gene expression filtering, as well as with GESS, which identifies off-target effects. This workflow produced a quantitatively integrated network of genes that modulate HIV-1 replication. We further investigated the roles of GOLGI49, SEC13, and COG in HIV-1 replication. Collectively, the MORR-RIGER method minimized the caveats of RNAi screening and improved our understanding of HIV-1-host cell interactions.
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Cell Rep. 2014 Oct 23;9(2):752-66. doi: 10.1016/j.celrep.2014.09.031. Epub 2014 Oct 16. Link to article on publisher's site.
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Full author list omitted for brevity. For the full list of authors, see article.