2024
Fibrotic extracellular matrix impacts cardiomyocyte phenotype and function in an iPSC-derived isogenic model of cardiac fibrosis
NIRO, Francesco, Soraia FERNANDES, Marco CASSANI, Monica APOSTOLICO, Jorge Oliver-De La CRUZ et. al.Základní údaje
Originální název
Fibrotic extracellular matrix impacts cardiomyocyte phenotype and function in an iPSC-derived isogenic model of cardiac fibrosis
Autoři
NIRO, Francesco (380 Itálie, domácí), Soraia FERNANDES, Marco CASSANI, Monica APOSTOLICO, Jorge Oliver-De La CRUZ, Daniel PEREIRA DE SOUSA (620 Portugalsko, domácí), Stefania PAGLIARI, Vladimir VINARSKY, Zbyněk ZDRÁHAL (203 Česká republika, domácí), David POTĚŠIL (203 Česká republika, domácí), Václav PUSTKA (203 Česká republika, domácí), Giulio POMPILIO, Elena SOMMARIVA, Davide ROVINA, Angela Serena MAIONE, Luca BERSANINI, Malin BECKER, Marco RASPONI a Giancarlo FORTE (380 Itálie)
Vydání
Translational Research, NEW YORK, ELSEVIER SCIENCE INC, 2024, 1931-5244
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 7.800 v roce 2022
Organizační jednotka
Lékařská fakulta
UT WoS
001275554600001
Klíčová slova anglicky
Decellularized extracellular matrix;Cardiac fibrosis modelling;Induced pluripotent stem cells;iPSC-derived-cardiac fibroblasts;iPSC-derived-cardiomyocytes
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 5. 8. 2024 08:39, Mgr. Tereza Miškechová
Anotace
V originále
Cardiac fibrosis occurs following insults to the myocardium and is characterized by the abnormal accumulation of non-compliant extracellular matrix (ECM), which compromises cardiomyocyte contractile activity and eventually leads to heart failure. This phenomenon is driven by the activation of cardiac fibroblasts (cFbs) to myofibroblasts and results in changes in ECM biochemical, structural and mechanical properties. The lack of predictive in vitro models of heart fibrosis has so far hampered the search for innovative treatments, as most of the cellular-based in vitro reductionist models do not take into account the leading role of ECM cues in driving the progression of the pathology. Here, we devised a single-step decellularization protocol to obtain and thoroughly characterize the biochemical and micro-mechanical properties of the ECM secreted by activated cFbs differentiated from human induced pluripotent stem cells (iPSCs). We activated iPSC-derived cFbs to the myofibroblast phenotype by tuning basic fibroblast growth factor (bFGF) and transforming growth factor beta 1 (TGF-β1) signalling and confirmed that activated cells acquired key features of myofibroblast phenotype, like SMAD2/3 nuclear shuttling, the formation of aligned alpha-smooth muscle actin (α−SMA)-rich stress fibres and increased focal adhesions (FAs) assembly. Next, we used Mass Spectrometry, nanoindentation, scanning electron and confocal microscopy to unveil the characteristic composition and the visco-elastic properties of the abundant, collagen-rich ECM deposited by cardiac myofibroblasts in vitro. Finally, we demonstrated that the fibrotic ECM activates mechanosensitive pathways in iPSC-derived cardiomyocytes, impacting on their shape, sarcomere assembly, phenotype, and calcium handling properties. We thus propose human bio-inspired decellularized matrices as animal-free, isogenic cardiomyocyte culture substrates recapitulating key pathophysiological changes occurring at the cellular level during cardiac fibrosis.
Návaznosti
LM2023042, projekt VaV |
| ||
90254, velká výzkumná infrastruktura |
|