Antoine de Zélicourt, Abdallah Fayssoil, Arnaud Mansart, Faouzi Zarrouki, Ahmed Karoui, Jérome Piquereau, Florence Lefebvre, Pascale Gerbaud, Delphine Mika, Mbarka Dakouane-Giudicelli, Erwan Lanchec, Miao Feng, Véronique Leblais, Régis Bobe, Jean-Marie Launay, Antony Galione, Ana Maria Gomez, Sabine de la Porte, José-Manuel Cancela
Ca2+ signaling is essential for cardiac contractility and excitability in heart function and remodeling. Intriguingly, little is known about the role of a new family of ion channels, the endo-lysosomal non-selective cation "two-pore channel" (TPCs) in heart function. Here we have used double TPC knock-out mice for the 1 and 2 isoforms of TPCs (Tpcn1/2-/- ) and evaluated their cardiac function. Doppler-echocardiography unveils altered left ventricular (LV) systolic function associated with a LV relaxation impairment...
December 16, 2023: Cell Calcium