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2016 ; 17 Suppl 1
(Suppl 1
): 12
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Comparative transcriptional profiling of renal cortex in rats with inherited
stress-induced arterial hypertension and normotensive Wistar Albino Glaxo rats
#MMPMID26821914
Fedoseeva LA
; Ryazanova MA
; Ershov NI
; Markel AL
; Redina OE
BMC Genet
2016[Jan]; 17 Suppl 1
(Suppl 1
): 12
PMID26821914
show ga
BACKGROUND: The renal function plays a leading role in long-term control of
arterial pressure. The comparative analysis of renal cortex transcriptome in
ISIAH rats with inherited stress-induced arterial hypertension and normotensive
WAG rats was performed using RNA-Seq approach. The goal of the study was to
identify the differentially expressed genes (DEGs) related to hypertension and to
detect the pathways contributing to the differences in renal functions in ISIAH
and WAG rats. RESULTS: The analysis revealed 716 genes differentially expressed
in renal cortex of ISIAH and WAG rats, 42 of them were associated with arterial
hypertension and regulation of blood pressure (BP). Several Gene Ontology (GO)
terms significantly enriched with DEGs suggested the existence of the hormone
dependent interstrain differences in renal cortex function. Multiple DEGs were
associated with regulation of blood pressure and blood circulation, with the
response to stress (including oxidative stress, hypoxia, and fluid shear stress)
and its regulation. Several other processes which may contribute to hypertension
development in ISIAH rats were: ion transport, regulation of calcium ion
transport, homeostatic process, tissue remodeling, immune system process and
regulation of immune response. KEGG analysis marked out several pathways
significantly enriched with DEGs related to immune system function, to steroid
hormone biosynthesis, tryptophan, glutathione, nitrogen, and drug metabolism.
CONCLUSIONS: The results of the study provide a basis for identification of
potential biomarkers of stress-sensitive hypertension and for further
investigation of the mechanisms that affect renal cortex function and
hypertension development.