Animal disease models generated by genetic engineering of polyamine metabolism

…, A Uimari, E Pirinen, MT Hyvönen… - Journal of cellular …, 2005 - Wiley Online Library
The polyamines putrescine, spermidine and spermine are natural components of all living
cells. Although their exact cellular functions are still largely unknown, a constant supply of …

Continuous oxidative stress due to activation of polyamine catabolism accelerates aging and protects against hepatotoxic insults

…, M Pietilä, S Loimas, E Pirinen, MT Hyvönen… - Transgenic …, 2011 - Springer
Enhanced polyamine catabolism via polyamine acetylation-oxidation elevates the oxidative
stress in an organism due to increased production of reactive oxygen species (ROS). We …

Obesity and hyperinsulinemia drive adipocytes to activate a cell cycle program and senesce

…, H Silva Cascales, S Lang, MT Hyvönen… - Nature medicine, 2021 - nature.com
Obesity is considered an important factor for many chronic diseases, including diabetes,
cardiovascular disease and cancer. The expansion of adipose tissue in obesity is due to an …

Maintenance of white adipose tissue in man

MT Hyvönen, KL Spalding - The international journal of biochemistry & cell …, 2014 - Elsevier
Obesity is increasing in an epidemic manner in most countries and constitutes a public
health problem by enhancing the risk for diseases such as diabetes, fatty liver disease and …

Genetic manipulation of polyamine catabolism in rodents

…, TA Keinänen, A Uimari, MT Hyvönen… - Journal of …, 2006 - academic.oup.com
Activation of polyamine catabolism through the overexpression of spermidine/spermine N 1 -acetyltransferase
(SSAT) in transgenic rodents does not only lead to distorted tissue …

Polyamine-regulated unproductive splicing and translation of spermidine/spermine N1-acetyltransferase

MT Hyvönen, A Uimari, TA Keinänen, S Heikkinen… - Rna, 2006 - rnajournal.cshlp.org
Spermidine/spermine N 1 -acetyltransferase (SSAT), the rate-controlling enzyme in the
interconversion of spermidine and spermine, is regulated by polyamines and their analogs at …

[HTML][HTML] Role of hypusinated eukaryotic translation initiation factor 5A in polyamine depletion-induced cytostasis

MT Hyvönen, TA Keinänen, M Cerrada-Gimenez… - Journal of biological …, 2007 - ASBMB
We have earlier shown that α-methylated spermidine and spermine analogues rescue cells
from polyamine depletion-induced growth inhibition and maintain pancreatic integrity under …

Activated polyamine catabolism in acute pancreatitis: α-methylated polyamine analogues prevent trypsinogen activation and pancreatitis-associated mortality

MT Hyvönen, KH Herzig, R Sinervirta, E Albrecht… - The American journal of …, 2006 - Elsevier
Polyamines are essential for normal cellular growth and function. Activation of polyamine
catabolism in transgenic rats overexpressing spermidine/spermine N 1 -acetyltransferase, the …

DNA condensation by chiral α-methylated polyamine analogues and protection of cellular DNA from oxidative damage

…, MT Hyvonen, L Alhonen, I Pandya, T Thomas… - …, 2010 - ACS Publications
Polyamines are essential molecules supporting the structure, conformation, and function of
nucleic acids and proteins. We studied stereoisomers of α,α′-dimethylated spermine [(R,R)-…

Chemical activation of SAT1 corrects diet-induced metabolic syndrome

F Castoldi, MT Hyvönen, S Durand… - Cell Death & …, 2020 - nature.com
The pharmacological targeting of polyamine metabolism is currently under the spotlight for
its potential in the prevention and treatment of several age-associated disorders. Here, we …