Title |
Toward gene therapy of hypertension: Experimental study on hypertensive ISIAH rats
|
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Published in |
Biochemistry, April 2017
|
DOI | 10.1134/s000629791704006x |
Pubmed ID | |
Authors |
M. N. Repkova, A. S. Levina, A. A. Seryapina, N. V. Shikina, E. V. Bessudnova, V. F. Zarytova, A. L. Markel |
Abstract |
TiO2-based nanocomposites were prepared to deliver oligonucleotides into cells. The nanocomposites were designed by the immobilization of polylysine-containing oligonucleotides on TiO2-nanoparticles (TiO2·PL-DNA). We showed for the first time the possibility of using the proposed nanocomposites for treatment of hypertensive disease by introducing them into hypertensive ISIAH rats developed as a model of stress-sensitive arterial hypertension. The mRNA of the gene encoding angiotensin I-converting enzyme (ACE1) involved in the synthesis of angiotensin II was chosen as a target. Administration (intraperitoneal injection and inhalation) of the nanocomposite showed a significant (by 20-30 mm Hg) decrease in systolic blood pressure when the nanocomposite contained the ACE1 gene-targeted oligonucleotide. When using the oligonucleotide with a random sequence, no effect was observed. Further development and improvement of the inhalation nanocomposite drug delivery to systemic hypertensive disease treatment promises new possibilities for clinical practice. |
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