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The effects are mediated via calcineurin A (CnA) activation as: (i) CnA was upregulated, (ii) GW0742 administration or co-transfection of PPARbeta significantly stimulated the activity of the CnA promoter, (iii) PPARbeta protein bound directly to the CnA promoter, (iv) the CnA target genes NFATc3, Hif-1alpha, and Cdk 9 were upregulated in response to PPARbeta stimulation, and (v) the inhibition of CnA activity by cyclosporine A abolished the hypertrophic and angiogenic responses to PPARbeta stimulation.
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