Analysis of L-arginine:glycine amidinotransferase-, creatine- and homoarginine-dependent gene regulation in the murine heart
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Analysis of L-arginine:glycine amidinotransferase-, creatine- and homoarginine-dependent gene regulation in the murine heart. / Jensen, Märit; Müller, Christian; Choe, Chi-Un; Schwedhelm, Edzard; Zeller, Tanja.
In: SCI REP-UK, Vol. 10, No. 1, 4821, 16.03.2020.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Analysis of L-arginine:glycine amidinotransferase-, creatine- and homoarginine-dependent gene regulation in the murine heart
AU - Jensen, Märit
AU - Müller, Christian
AU - Choe, Chi-Un
AU - Schwedhelm, Edzard
AU - Zeller, Tanja
PY - 2020/3/16
Y1 - 2020/3/16
N2 - L-arginine:glycine amidinotransferase (AGAT) and its metabolites creatine and homoarginine (HA) have been linked to cardiovascular pathologies in both human and murine studies, but the underlying molecular mechanisms are poorly understood. Here, we report the first analysis of heart transcriptome variation using microarrays in an AGAT-deficient (AGAT-/-) mouse model to evaluate AGAT-, creatine- and HA-dependent gene regulation. Our data revealed significant differences of gene expression between AGAT-/- and wild-type (WT) mice, affecting cardiac energy metabolism (Fbp2, Ucp2), cardiac hypertrophy and fibrosis (Nppa, Ctgf), immune response (Fgl2), and the conduction system of the heart (Dsc2, Ehd4, Hcn2, Hcn4, Scn4a, Scn4b). All of these genes being expressed on WT level in creatine-supplemented mice. Using in silico analysis based on the GEO database we found that most of these candidate genes (Ctgf, Dsc2, Fbp2, Fgl2, Hcn2, Nppa) revealed significant alterations in a WT mouse model of myocardial infarction underlining a pathophysiological relationship between AGAT metabolism and cardiovascular disease.
AB - L-arginine:glycine amidinotransferase (AGAT) and its metabolites creatine and homoarginine (HA) have been linked to cardiovascular pathologies in both human and murine studies, but the underlying molecular mechanisms are poorly understood. Here, we report the first analysis of heart transcriptome variation using microarrays in an AGAT-deficient (AGAT-/-) mouse model to evaluate AGAT-, creatine- and HA-dependent gene regulation. Our data revealed significant differences of gene expression between AGAT-/- and wild-type (WT) mice, affecting cardiac energy metabolism (Fbp2, Ucp2), cardiac hypertrophy and fibrosis (Nppa, Ctgf), immune response (Fgl2), and the conduction system of the heart (Dsc2, Ehd4, Hcn2, Hcn4, Scn4a, Scn4b). All of these genes being expressed on WT level in creatine-supplemented mice. Using in silico analysis based on the GEO database we found that most of these candidate genes (Ctgf, Dsc2, Fbp2, Fgl2, Hcn2, Nppa) revealed significant alterations in a WT mouse model of myocardial infarction underlining a pathophysiological relationship between AGAT metabolism and cardiovascular disease.
U2 - 10.1038/s41598-020-61638-3
DO - 10.1038/s41598-020-61638-3
M3 - SCORING: Journal article
C2 - 32179820
VL - 10
JO - SCI REP-UK
JF - SCI REP-UK
SN - 2045-2322
IS - 1
M1 - 4821
ER -