J Card Fail. 2021 Nov 13. pii: S1071-9164(21)00471-1. [Epub ahead of print]
Khatia Gabisonia,
Gia Burjanadze,
Felix Woitek,
Ayse Keles,
Mitsuru Seki,
Nikoloz Gorgodze,
Lucia Carlucci,
Serguei Ilchenko,
Clara Kurishima,
Kenneth Walsh,
Helen Piontkivska,
Fabio A Recchia,
Takhar Kasumov.
Protein pool turnover is a critically important cellular homeostatic component, yet it has been little explored in the context of heart failure (HF) pathophysiology. We employed in vivo 2H labeling/ proteome dynamics for non-biased discovery of turnover alterations involving functionally linked cardiac and plasma proteins in canine tachypacing-induced HF, an established preclinical model of dilated cardiomyopathy. Compared to control, dogs with congestive HF displayed bidirectional turnover changes of 28 cardiac proteins, i.e. reduced half-life of several key enzymes involved in glycolysis, homocysteine metabolism and glycogenesis, and increased half-life of proteins involved in proteolysis. Changes in plasma proteins were more modest: only 5 proteins, involved in various functions including proteolysis inhibition, hemoglobin, calcium and ferric-iron binding, displayed increased or decreased turnover rates. In other dogs undergoing cardiac tachypacing, we infused for 2 weeks the myokine Follistatin-like protein 1 (FSTL1), known for its ameliorative effects on HF-induced alterations. Proteome dynamics proved very sensitive in detecting the partial or complete prevention, by FSTL1, of cardiac and plasma protein turnover alterations. In conclusion, our study unveiled, for the first time in a large mammal, numerous HF-related alterations that may serve as the basis for future mechanistic research and/or as conceptually new molecular markers.
Keywords: ATIC, 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase /IMP cyclohydrolase; BNP, brain natriuretic peptide; CLTC, Clathrin heavy chain; CRP, Pentraxin; CYB5R3, NADH-cytochrome b5 reductase; DPYSL2, Dihydropyrimidinase Like 2; FDR, false discovery rate; FSTL1, Follistatin-like protein 1; GAPDHS, Glyceraldehyde-3-phosphate dehydrogenase; GYS1, Glycogen synthase; HF, Heart failure; HSP90, Heat shock protein 90; HSP90AB1, Heat shock protein 90 alpha family class B member 1; HSPA1A, Heat Shock Protein A1; LC-MS, liquid chromatography-mass spectrometry; LFQ, Label-free quantification; LOC479668, Haptoglobin; LTAH4, Leukotriene A (4) hydrolase; LV, Left ventricle; PCA, Principal Component Analysis; PDHA1, Pyruvate dehydrogenase E1 component subunit alpha; PDHB, Pyruvate dehydrogenase E1 component subunit beta; PGM, Phosphoglucomutase 1; PSMD2, Proteasome 26S subunit, non-ATPase 2; STIP1, Stress induced phosphoprotein; TF, Transferrin; proteome dynamics, bioinformatics, cardiac disease, heart failure, List of abbreviations: ANP, atrial natriuretic peptide