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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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GATA4-mediated cardiac hypertrophy induced by d-myo-inositol 1,4,5-tris-phosphate.

We evaluated the effects of d-myo-inositol 1,4,5-tris-phosphate on cardiac hypertrophy. d-myo-inositol 1,4,5-tris-phosphate augmented cardiac hypertrophy as evidenced by its effects on DNA synthesis, protein synthesis, and expression of immediate-early genes c-myc and c-fos, beta-myosin heavy chain, and alpha-actin. The administration of d-myo-inositol 1,4,5-tris-phosphate increased the expression of nuclear factor of activated T-cells and cardiac-restricted zinc finger transcription factor (GATA4). Real-time quantitative RT-PCR showed that d-myo-inositol 1,4,5-tris-phosphate-induced GATA4 mRNA was significantly enhanced even in the presence of the calcineurin inhibitor, cyclosporine A. The effect of d-myo-inositol 1,4,5-tris-phosphate was blocked after inhibition of inositol-trisphosphate receptors but not after inhibition of c-Raf/mitogen-activated protein kinase kinase (MEK)/mitogen- activated protein kinase (ERK) or p38 mitogen-activated protein kinase pathways. The study shows that d-myo-inositol 1,4,5-tris-phosphate-induced cardiac hypertrophy is mediated by GATA4 but independent from the calcineurin pathway.[1]

References

  1. GATA4-mediated cardiac hypertrophy induced by d-myo-inositol 1,4,5-tris-phosphate. Zhu, Z., Zhu, S., Liu, D., Yu, Z., Yang, Y., van der Giet, M., Tepel, M. Biochem. Biophys. Res. Commun. (2005) [Pubmed]
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