TY - JOUR
T1 - CD38-NADase is a new major contributor to Duchenne muscular dystrophic phenotype
AU - de Zélicourt, Antoine
AU - Fayssoil, Abdallah
AU - Dakouane-Giudicelli, Mbarka
AU - De Jesus, Isley
AU - Karoui, Ahmed
AU - Zarrouki, Faouzi
AU - Lefebvre, Florence
AU - Mansart, Arnaud
AU - Launay, Jean Marie
AU - Piquereau, Jerome
AU - Tarragó, Mariana G.
AU - Bonay, Marcel
AU - Forand, Anne
AU - Moog, Sophie
AU - Piétri-Rouxel, France
AU - Brisebard, Elise
AU - Chini, Claudia C.S.
AU - Kashyap, Sonu
AU - Fogarty, Matthew J.
AU - Sieck, Gary C.
AU - Mericskay, Mathias
AU - Chini, Eduardo N.
AU - Gomez, Ana Maria
AU - Cancela, José Manuel
AU - de la Porte, Sabine
N1 - Publisher Copyright:
© 2022 The Authors. Published under the terms of the CC BY 4.0 license.
PY - 2022/5/9
Y1 - 2022/5/9
N2 - Duchenne muscular dystrophy (DMD) is characterized by progressive muscle degeneration. Two important deleterious features are a Ca2+ dysregulation linked to Ca2+ influxes associated with ryanodine receptor hyperactivation, and a muscular nicotinamide adenine dinucleotide (NAD+) deficit. Here, we identified that deletion in mdx mice of CD38, a NAD+ glycohydrolase-producing modulators of Ca2+ signaling, led to a fully restored heart function and structure, with skeletal muscle performance improvements, associated with a reduction in inflammation and senescence markers. Muscle NAD+ levels were also fully restored, while the levels of the two main products of CD38, nicotinamide and ADP-ribose, were reduced, in heart, diaphragm, and limb. In cardiomyocytes from mdx/CD38−/− mice, the pathological spontaneous Ca2+ activity was reduced, as well as in myotubes from DMD patients treated with isatuximab (SARCLISA®) a monoclonal anti-CD38 antibody. Finally, treatment of mdx and utrophin–dystrophin-deficient (mdx/utr−/−) mice with CD38 inhibitors resulted in improved skeletal muscle performances. Thus, we demonstrate that CD38 actively contributes to DMD physiopathology. We propose that a selective anti-CD38 therapeutic intervention could be highly relevant to develop for DMD patients.
AB - Duchenne muscular dystrophy (DMD) is characterized by progressive muscle degeneration. Two important deleterious features are a Ca2+ dysregulation linked to Ca2+ influxes associated with ryanodine receptor hyperactivation, and a muscular nicotinamide adenine dinucleotide (NAD+) deficit. Here, we identified that deletion in mdx mice of CD38, a NAD+ glycohydrolase-producing modulators of Ca2+ signaling, led to a fully restored heart function and structure, with skeletal muscle performance improvements, associated with a reduction in inflammation and senescence markers. Muscle NAD+ levels were also fully restored, while the levels of the two main products of CD38, nicotinamide and ADP-ribose, were reduced, in heart, diaphragm, and limb. In cardiomyocytes from mdx/CD38−/− mice, the pathological spontaneous Ca2+ activity was reduced, as well as in myotubes from DMD patients treated with isatuximab (SARCLISA®) a monoclonal anti-CD38 antibody. Finally, treatment of mdx and utrophin–dystrophin-deficient (mdx/utr−/−) mice with CD38 inhibitors resulted in improved skeletal muscle performances. Thus, we demonstrate that CD38 actively contributes to DMD physiopathology. We propose that a selective anti-CD38 therapeutic intervention could be highly relevant to develop for DMD patients.
KW - CD38
KW - DMD
KW - NAD
KW - calcium
KW - cardiomyopathy
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U2 - 10.15252/emmm.202012860
DO - 10.15252/emmm.202012860
M3 - Article
C2 - 35298089
AN - SCOPUS:85126369641
SN - 1757-4676
VL - 14
JO - EMBO Molecular Medicine
JF - EMBO Molecular Medicine
IS - 5
M1 - e12860
ER -