NDLI: Proteomic analysis of Rac1 transgenic mice displaying dilated cardiomyopathy reveals an increase in creatine kinase M-chain protein abundance

Content Provider	Springer Nature Link
Author	Buscemi, Nina Doherty Kirby, Amanda Sussman, Mark A. Lajoie, Gilles Van Eyk, Jennifer E.
Copyright Year	2003
Abstract	Here, we demonstrate the application of the proteomic approach to the study of a transgenic mouse model of heart failure and provide an example of a disease-associated protein alteration that can be observed using this approach. Specifically, we applied the proteomic approach to the analysis of a mouse model of dilated cardiomyopathy in which the small GTPase, Rac1, was constitutively expressed specifically in the myocardium. We utilized the methods of two-dimensional gel electrophoresis (2-DE) for protein separation, silver-staining for protein visualization and mass spectrometry (MALDI-TOF and MS/MS) for protein spot identification. Computer-generated composite images were created which represent a normalized average of four 2-DE gel images derived from analysis of either Rac1 transgenic (n = 4) or non-transgenic (n = 4) mice. Analysis of composite images derived from NTG and Rac1 experimental groups revealed numerous statistically significant differences in mean protein spot intensities. Here, we report a statistically significant increase, of approximately 1.6-fold, in the mean protein spot intensity for creatine kinase M-chain in the composite image of Rac1 transgenic mice compared to control. This protein alteration may be consistent with an end-stage heart failure phenotype in which maximal myocardial reserve is employed to sustain survival.
Starting Page	145
Ending Page	151
Page Count	7
File Format	PDF
ISSN	03008177
Journal	Molecular and Cellular Biochemistry
Volume Number	251
Issue Number	1-2
e-ISSN	15734919
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cardiology Medical Biochemistry Oncology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Clinical Biochemistry Molecular Biology

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