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2016 ; 4
(ä): e1884
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Integrative microRNA-gene expression network analysis in genetic hypercalciuric
stone-forming rat kidney
#MMPMID27069814
Lu Y
; Qin B
; Hu H
; Zhang J
; Wang Y
; Wang Q
; Wang S
PeerJ
2016[]; 4
(ä): e1884
PMID27069814
show ga
Background. MicroRNAs (miRNAs) influence a variety of biological functions by
regulating gene expression post-transcriptionally. Aberrant miRNA expression has
been associated with many human diseases. Urolithiasis is a common disease, and
idiopathic hypercalciuria (IH) is an important risk factor for calcium
urolithiasis. However, miRNA expression patterns and their biological functions
in urolithiasis remain unknown. Methods and Results. A multi-step approach
combining microarray miRNA and mRNA expression profile and bioinformatics
analysis was adopted to analyze dysregulated miRNAs and genes in genetic
hypercalciuric stone-forming (GHS) rat kidneys, using normal Sprague-Dawley (SD)
rats as controls. We identified 2418 mRNAs and 19 miRNAs as significantly
differentially expressed, over 700 gene ontology (GO) terms and 83 KEGG pathways
that were significantly enriched in GHS rats. In addition, we constructed an
miRNA-gene network that suggested that rno-miR-674-5p, rno-miR-672-5p,
rno-miR-138-5p and rno-miR-21-3p may play important roles in the regulatory
network. Furthermore, signal-net analysis suggested that NF-kappa B likely plays
a crucial role in hypercalciuria urolithiasis. Conclusions. This study presents a
global view of mRNA and miRNA expression in GHS rat kidneys, and suggests that
miRNAs may be important in the regulation of hypercalciuria. The data provide
valuable insights for future research, which should aim at validating the role of
the genes featured here in the pathophysiology of hypercalciuria.