Cerebrovascular gene expression in spontaneously hypertensive rats
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Cerebrovascular gene expression in spontaneously hypertensive rats. / Grell, Anne-Sofie; Frederiksen, Simona Denise; Edvinsson, Lars; Ansar, Saema.
In: PLOS ONE, Vol. 12, No. 9, e0184233, 2017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Cerebrovascular gene expression in spontaneously hypertensive rats
AU - Grell, Anne-Sofie
AU - Frederiksen, Simona Denise
AU - Edvinsson, Lars
AU - Ansar, Saema
PY - 2017
Y1 - 2017
N2 - Hypertension is a hemodynamic disorder and one of the most important and well-established risk factors for vascular diseases such as stroke. Blood vessels exposed to chronic shear stress develop structural changes and remodeling of the vascular wall through many complex mechanisms. However, the molecular mechanisms involved are not fully understood. Hypertension-susceptible genes may provide a novel insight into potential molecular mechanisms of hypertension and secondary complications associated with hypertension. The aim of this exploratory study was to identify gene expression differences in the middle cerebral arteries between 12-week-old male spontaneously hypertensive rats and their normotensive Wistar-Kyoto rats using an Affymetrix whole-transcriptome expression profiling. Quantitative PCR and western blotting were used to verify genes of interest. 169 genes were differentially expressed in the middle cerebral arteries from hypertensive compared to normotensive rats. The gene expression of 72 genes was decreased and the gene expression of 97 genes was increased. The following genes with a fold difference ≥1.40 were verified by quantitative PCR; Postn, Olr1, Fas, Vldlr, Mmp2, Timp1, Serpine1, Mmp11, Cd34, Ptgs1 and Ptgs2. The gene expression of Postn, Olr1, Fas, Vldlr, Mmp2, Timp1 and Serpine1 and the protein expression of LOX1 (also known as OLR1) were significantly increased in the middle cerebral arteries from spontaneously hypertensive rats compared to Wistar-Kyoto rats. In conclusion, the identified genes in the middle cerebral arteries from spontaneously hypertensive rats could be possible mediators of the vascular changes and secondary complications associated with hypertension. This study supports the selection of key genes to investigate in the future research of hypertension-induced end-organ damage.
AB - Hypertension is a hemodynamic disorder and one of the most important and well-established risk factors for vascular diseases such as stroke. Blood vessels exposed to chronic shear stress develop structural changes and remodeling of the vascular wall through many complex mechanisms. However, the molecular mechanisms involved are not fully understood. Hypertension-susceptible genes may provide a novel insight into potential molecular mechanisms of hypertension and secondary complications associated with hypertension. The aim of this exploratory study was to identify gene expression differences in the middle cerebral arteries between 12-week-old male spontaneously hypertensive rats and their normotensive Wistar-Kyoto rats using an Affymetrix whole-transcriptome expression profiling. Quantitative PCR and western blotting were used to verify genes of interest. 169 genes were differentially expressed in the middle cerebral arteries from hypertensive compared to normotensive rats. The gene expression of 72 genes was decreased and the gene expression of 97 genes was increased. The following genes with a fold difference ≥1.40 were verified by quantitative PCR; Postn, Olr1, Fas, Vldlr, Mmp2, Timp1, Serpine1, Mmp11, Cd34, Ptgs1 and Ptgs2. The gene expression of Postn, Olr1, Fas, Vldlr, Mmp2, Timp1 and Serpine1 and the protein expression of LOX1 (also known as OLR1) were significantly increased in the middle cerebral arteries from spontaneously hypertensive rats compared to Wistar-Kyoto rats. In conclusion, the identified genes in the middle cerebral arteries from spontaneously hypertensive rats could be possible mediators of the vascular changes and secondary complications associated with hypertension. This study supports the selection of key genes to investigate in the future research of hypertension-induced end-organ damage.
KW - Animals
KW - Blood Pressure/genetics
KW - Blotting, Western
KW - Body Weight/genetics
KW - Cerebral Arteries/metabolism
KW - Gene Expression Profiling
KW - Hypertension/metabolism
KW - Male
KW - Oligonucleotide Array Sequence Analysis
KW - Polymerase Chain Reaction
KW - Rats
KW - Rats, Inbred WKY
U2 - 10.1371/journal.pone.0184233
DO - 10.1371/journal.pone.0184233
M3 - Journal article
C2 - 28880918
VL - 12
JO - PLoS ONE
JF - PLoS ONE
SN - 1932-6203
IS - 9
M1 - e0184233
ER -
ID: 195961560