Optimal reference genes for RNA tissue analysis in small animal models of hemorrhagic fever viruses

Author:

Davies Katherine A.,Welch Stephen R.,Sorvillo Teresa E.,Coleman-McCray JoAnn D.,Martin María Laura,Brignone Julia M.,Montgomery Joel M.,Spiropoulou Christina F.,Spengler Jessica R.

Abstract

AbstractReverse-transcription quantitative polymerase chain reaction assays are frequently used to evaluate gene expression in animal model studies. Data analyses depend on normalization using a suitable reference gene (RG) to minimize effects of variation due to sample collection, sample processing, or experimental set-up. Here, we investigated the suitability of nine potential RGs in laboratory animals commonly used to study viral hemorrhagic fever infection. Using tissues (liver, spleen, gonad [ovary or testis], kidney, heart, lung, eye, brain, and blood) collected from naïve animals and those infected with Crimean–Congo hemorrhagic fever (mice), Nipah (hamsters), or Lassa (guinea pigs) viruses, optimal species-specific RGs were identified based on five web-based algorithms to assess RG stability. Notably, the Ppia RG demonstrated stability across all rodent tissues tested. Optimal RG pairs that include Ppia were determined for each rodent species (Ppia and Gusb for mice; Ppia and Hrpt for hamsters; and Ppia and Gapdh for guinea pigs). These RG pair assays were multiplexed with viral targets to improve assay turnaround time and economize sample usage. Finally, a pan-rodent Ppia assay capable of detecting Ppia across multiple rodent species was developed and successfully used in ecological investigations of field-caught rodents, further supporting its pan-species utility.

Funder

Oak Ridge Institute for Science and Education

Defense Advanced Research Projects Agency

Argentina's National Administration of Laboratories and Health Institutes

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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