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

Anthracycline cardiotoxicity in transgenic mice overexpressing SR Ca2+-ATPase.

Chronic anthracycline administration results in a time- and dose-dependent cardiomyopathy. The Ca-ATPase of the sarcoplasmic reticulum, SERCA2, has been implicated as a principal target for anthracycline-induced cardiotoxicity. This hypothesis predicts that improved SERCA2 function would provide protection from cardiotoxic effects of anthracycline administration. Doxorubicin was administered (1.7 mg/kg three times weekly; cumulative dose of 20 mg/kg) to 10 transgenic mice that overexpressed SERCA2 and to 10 isogenic littermates. Survival was monitored for 60 days and histologic comparisons were made of cardiac tissue. Survival in the transgenic mice was worse (1/10 60-day survivors) compared to isogenic control mice (7/10 60-day survivors). There was a greater degree of histologic damage exhibited in hearts from transgenic mice compared to isogenic controls when all available hearts were examined. These data do not support a role of SERCA2 in ameliorating anthracycline cardiotoxicity.[1]

References

  1. Anthracycline cardiotoxicity in transgenic mice overexpressing SR Ca2+-ATPase. Burke, B.E., Olson, R.D., Cusack, B.J., Gambliel, H.A., Dillmann, W.H. Biochem. Biophys. Res. Commun. (2003) [Pubmed]
 
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