Research output: Contribution to journal › Article › Academic › peer-review
Cardiomyocyte-specific miRNA-30c over-expression causes dilated cardiomyopathy. / Wijnen, Wino J.; van der Made, Ingeborg; van den Oever, Stephanie et al.
In: PLoS ONE, Vol. 9, No. 5, 2014, p. e96290.Research output: Contribution to journal › Article › Academic › peer-review
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TY - JOUR
T1 - Cardiomyocyte-specific miRNA-30c over-expression causes dilated cardiomyopathy
AU - Wijnen, Wino J.
AU - van der Made, Ingeborg
AU - van den Oever, Stephanie
AU - Hiller, Monika
AU - de Boer, Bouke A.
AU - Picavet, Daisy I.
AU - Chatzispyrou, Iliana A.
AU - Houtkooper, Riekelt H.
AU - Tijsen, Anke J.
AU - Hagoort, Jaco
AU - van Veen, Henk
AU - Everts, Vincent
AU - Ruijter, Jan M.
AU - Pinto, Yigal M.
AU - Creemers, Esther E.
PY - 2014
Y1 - 2014
N2 - MicroRNAs (miRNAs) regulate many aspects of cellular function and their deregulation has been implicated in heart disease. MiRNA-30c is differentially expressed in the heart during the progression towards heart failure and in vitro studies hint to its importance in cellular physiology. As little is known about the in vivo function of miRNA-30c in the heart, we generated transgenic mice that specifically overexpress miRNA-30c in cardiomyocytes. We show that these mice display no abnormalities until about 6 weeks of age, but subsequently develop a severely dilated cardiomyopathy. Gene expression analysis of the miRNA-30c transgenic hearts before onset of the phenotype indicated disturbed mitochondrial function. This was further evident by the downregulation of mitochondrial oxidative phosphorylation (OXPHOS) complexes III and IV at the protein level. Taken together these data indicate impaired mitochondrial function due to OXPHOS protein depletion as a potential cause for the observed dilated cardiomyopathic phenotype in miRNA-30c transgenic mice. We thus establish an in vivo role for miRNA-30c in cardiac physiology, particularly in mitochondrial function
AB - MicroRNAs (miRNAs) regulate many aspects of cellular function and their deregulation has been implicated in heart disease. MiRNA-30c is differentially expressed in the heart during the progression towards heart failure and in vitro studies hint to its importance in cellular physiology. As little is known about the in vivo function of miRNA-30c in the heart, we generated transgenic mice that specifically overexpress miRNA-30c in cardiomyocytes. We show that these mice display no abnormalities until about 6 weeks of age, but subsequently develop a severely dilated cardiomyopathy. Gene expression analysis of the miRNA-30c transgenic hearts before onset of the phenotype indicated disturbed mitochondrial function. This was further evident by the downregulation of mitochondrial oxidative phosphorylation (OXPHOS) complexes III and IV at the protein level. Taken together these data indicate impaired mitochondrial function due to OXPHOS protein depletion as a potential cause for the observed dilated cardiomyopathic phenotype in miRNA-30c transgenic mice. We thus establish an in vivo role for miRNA-30c in cardiac physiology, particularly in mitochondrial function
U2 - 10.1371/journal.pone.0096290
DO - 10.1371/journal.pone.0096290
M3 - Article
C2 - 24789369
VL - 9
SP - e96290
JO - PLoS ONE
JF - PLoS ONE
SN - 1932-6203
IS - 5
ER -
ID: 2399107