کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2191594 | 1097866 | 2007 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Time dependent changes in cytoplasmic proteins of the right ventricle during prolonged pressure overload
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کلمات کلیدی
HSP-27PRXppm2-DEPABCRYABCHDtwo-dimensional gel electrophoresis - الکتروفورز ژل دو بعدیpulmonary artery banding - باندهای عروق ریویright ventricle - بطن راستleft ventricle - بطن چپCongenital heart disease - بیماری قلبی مادرزادیUbiquitin proteasome system - سیستم پروتئازوم UbiquitinMass spectrometry - طیف سنجی جرمیparts per million - قطعات در میلیونHypertrophy - هیپرتروفی یا پُرسازیProteomics - پروتئومیکسPeroxiredoxin - پروکسی ردوکسینUPS - یو پی اس
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
In many forms of congenital heart disease, the right ventricle (RV) is subject to abnormal loading conditions resulting in RV hypertrophy and remodeling. We determined the alterations in RV cytoplasmic proteomic phenotype that occur during prolonged periods of RV pressure overload. We performed a differential proteomic profiling study on RV hypertrophy using an animal model of various durations of pulmonary artery banding (PAB) in parallel with hemodynamic characterization. This hemodynamic evaluation showed that after 6, 12 and 20 weeks of PAB, the RV is in a compensated state of hypertrophy. Overall, the majority of protein changes were metabolism related indicating a shift towards the glycolytic pathway at the expense of β-oxidation in the RV of the PAB animals. The changes in proteins related to the glycolytic pathway, exemplified by enolase and creatine kinase B-chain, tended to precede changes in β-oxidation. In parallel, increases in stress chaperones, exemplified by several phosphorylated HSP-27 species, are present from the 6 week time point, whereas increases in antioxidant proteins, exemplified by peroxiredoxin 2 and 6, appear to be restricted to the 12 week time point. The p38 MAPK signal transduction pathway appears not to be activated. Observed protein changes are likely part of a protective mechanism against the development of RV failure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular and Cellular Cardiology - Volume 43, Issue 2, August 2007, Pages 197-209
Journal: Journal of Molecular and Cellular Cardiology - Volume 43, Issue 2, August 2007, Pages 197-209
نویسندگان
Matthijs J. Faber, Michiel Dalinghaus, Inge M. Lankhuizen, Karel Bezstarosti, Adrie J.M. Verhoeven, Dirk J. Duncker, Willem A. Helbing, Jos M.J. Lamers,