Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Selection and validation of reference genes for gene expression studies in Klebsiella pneumoniae using Reverse Transcription Quantitative real-time PCR

Full text
Author(s):
Inacio Gomes, Ana Erika [1] ; Stuchi, Leonardo Prado [1] ; Goncalves Siqueira, Nathalia Maria [1] ; Henrique, Joao Batista [1] ; Vicentini, Renato [2] ; Ribeiro, Marcelo Lima [3] ; Darrieux, Michelle [1] ; Caldas Ferraz, Lucio Fabio [1]
Total Authors: 8
Affiliation:
[1] Univ Sao Francisco, Lab Biol Mol Microrganismos, BR-12916900 Braganca Paulista, SP - Brazil
[2] Univ Estadual Campinas, Ctr Biol Mol & Engn Genet, BR-13083875 Campinas, SP - Brazil
[3] Univ Sao Francisco, Unidade Integrada Farmacol & Gastroenterol UNIFAG, BR-12916900 Braganca Paulista, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 8, JUN 13 2018.
Web of Science Citations: 6
Abstract

For reliable results, Reverse Transcription Quantitative real-time Polymerase Chain Reaction (RT-qPCR) analyses depend on stably expressed reference genes for data normalization purposes. Klebsiella pneumoniae is an opportunistic Gram-negative bacterium that has become a serious threat worldwide. Unfortunately, there is no consensus for an ideal reference gene for RT-qPCR data normalization on K. pneumoniae. In this study, the expression profile of eleven candidate reference genes was assessed in K. pneumoniae cells submitted to various experimental conditions, and the expression stability of these candidate genes was evaluated using statistical algorithms BestKeeper, NormFinder, geNorm, Delta C-T and RefFinder. The statistical analyses ranked recA, rho, proC and rpoD as the most suitable reference genes for accurate RT-qPCR data normalization in K. pneumoniae. The reliability of the proposed reference genes was validated by normalizing the relative expression of iron-regulated genes in K. pneumoniae cells submitted to iron-replete and iron-limited conditions. This work emphasizes that the stable expression of any potential reference candidate gene must be validated in each physiological condition or experimental treatment under study. (AU)

FAPESP's process: 08/11365-1 - Study of the mechanism of gene expression regulation by Fur regulator in Klebsiella pneumoniae: consequences on the expression of virulence factors mediated by quorum-sensing
Grantee:Lúcio Fábio Caldas Ferraz
Support type: Regular Research Grants