Title
Minority Gene Expression Profiling: Probing the Genetic Signatures of Pathogenesis Using Ribosome Profiling
Date Issued
28 March 2020
Access level
open access
Resource Type
journal article
Author(s)
Publisher(s)
Oxford University Press
Abstract
Minority Gene Expression Profiling (MGEP) refers to a scenario where the expression profiles of specific genes of interest are concentrated in a small cellular pool that is embedded within a larger, non-expressive pool. An example of this is the analysis of disease-related genes within sub-populations of blood or biopsied tissues. These systems are characterized by low signal-to-noise ratios that make it difficult, if not impossible, to uncover the desired signatures of pathogenesis in the absence of lengthy, and often problematic, technical manipulations. We have adapted ribosome profiling (RP) workflows from the Illumina to the Ion Proton platform and used them to analyze signatures of pathogenesis in an MGEP model system consisting of human cells eliciting <3% productive dengue infection. We find that RP is powerful enough to identify relevant responses of differentially expressed genes, even in the presence of significant noise. We discuss how to deal with sources of unwanted variation, and propose ways to further improve this powerful approach to the study of pathogenic signatures within MGEP systems.
Start page
S341
End page
S357
Volume
221
Language
English
OCDE Knowledge area
PatologÃa
Genética, Herencia
Enfermedades infecciosas
Subjects
Scopus EID
2-s2.0-85082518434
PubMed ID
Source
Journal of Infectious Diseases
ISSN of the container
00221899
Sponsor(s)
We gratefully acknowledge Karina Leiva, Lucy Espinoza and Christian Baldeviano at NAMRU-6 for technical support with FACS analysis; Gary Wessel at Brown University for providing access to his fluorescent microscope and image analysis software; Mark Robinson at the University of Zurich for advice on EdgeR Robust; Davide Risso at the University of California Berkeley for advice on RUVseq; and Thomas J. Hardcastle at the University of Cambridge for advice on RiboSeqR. The work was supported by an award to ML from the In-House Laboratory Independent Research Program of the Naval Medical Research Center (Project ID: ILIR-4514).
Supplement sponsorship. This supplement is sponsored by WRAIR, LANL, USAMRIID, PUCP (Pontificia Universidad Catolica del Peru), USAFSAM, NIH.
Sources of information:
Directorio de Producción CientÃfica
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