TY - JOUR
T1 - Infiltrating macrophages amplify doxorubicin-induced cardiac damage
T2 - role of catecholamines
AU - Gambardella, Jessica
AU - Santulli, Gaetano
AU - Fiordelisi, Antonella
AU - Cerasuolo, Federica Andrea
AU - Wang, Xujun
AU - Prevete, Nella
AU - Sommella, Eduardo
AU - Avvisato, Roberta
AU - Buonaiuto, Antonietta
AU - Altobelli, Giovanna Giuseppina
AU - Rinaldi, Laura
AU - Chiuso, Francesco
AU - Feliciello, Antonio
AU - Dal Piaz, Fabrizio
AU - Campiglia, Pietro
AU - Ciccarelli, Michele
AU - Morisco, Carmine
AU - Sadoshima, Junichi
AU - Iaccarino, Guido
AU - Sorriento, Daniela
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/11
Y1 - 2023/11
N2 - Background: The functional contribution of non-myocyte cardiac cells, such as inflammatory cells, in the setup of heart failure in response to doxorubicin (Dox) is recently becoming of growing interest. Objectives: The study aims to evaluate the role of macrophages in cardiac damage elicited by Dox treatment. Methods: C57BL/6 mice were treated with one intraperitoneal injection of Dox (20 mg/kg) and followed up for 5 days by cardiac ultrasounds (CUS), histological, and flow cytometry evaluations. We also tested the impact of Dox in macrophage-depleted mice. Rat cardiomyoblasts were directly treated with Dox (D-Dox) or with a conditioned medium from cultured murine macrophages treated with Dox (M-Dox). Results: In response to Dox, macrophage infiltration preceded cardiac damage. Macrophage depletion prevents Dox-induced damage, suggesting a key role of these cells in promoting cardiotoxicity. To evaluate the crosstalk between macrophages and cardiac cells in response to DOX, we compared the effects of D-Dox and M-Dox in vitro. Cell vitality was lower in cardiomyoblasts and apoptosis was higher in response to M-Dox compared with D-Dox. These events were linked to p53-induced mitochondria morphology, function, and autophagy alterations. We identify a mechanistic role of catecholamines released by Dox-activated macrophages that lead to mitochondrial apoptosis of cardiac cells through β-AR stimulation. Conclusions: Our data indicate that crosstalk between macrophages and cardiac cells participates in cardiac damage in response to Dox. Graphical abstract: [Figure not available: see fulltext.]
AB - Background: The functional contribution of non-myocyte cardiac cells, such as inflammatory cells, in the setup of heart failure in response to doxorubicin (Dox) is recently becoming of growing interest. Objectives: The study aims to evaluate the role of macrophages in cardiac damage elicited by Dox treatment. Methods: C57BL/6 mice were treated with one intraperitoneal injection of Dox (20 mg/kg) and followed up for 5 days by cardiac ultrasounds (CUS), histological, and flow cytometry evaluations. We also tested the impact of Dox in macrophage-depleted mice. Rat cardiomyoblasts were directly treated with Dox (D-Dox) or with a conditioned medium from cultured murine macrophages treated with Dox (M-Dox). Results: In response to Dox, macrophage infiltration preceded cardiac damage. Macrophage depletion prevents Dox-induced damage, suggesting a key role of these cells in promoting cardiotoxicity. To evaluate the crosstalk between macrophages and cardiac cells in response to DOX, we compared the effects of D-Dox and M-Dox in vitro. Cell vitality was lower in cardiomyoblasts and apoptosis was higher in response to M-Dox compared with D-Dox. These events were linked to p53-induced mitochondria morphology, function, and autophagy alterations. We identify a mechanistic role of catecholamines released by Dox-activated macrophages that lead to mitochondrial apoptosis of cardiac cells through β-AR stimulation. Conclusions: Our data indicate that crosstalk between macrophages and cardiac cells participates in cardiac damage in response to Dox. Graphical abstract: [Figure not available: see fulltext.]
KW - Catecholamines
KW - Doxorubicin
KW - Macrophages
KW - Mitochondria
KW - Mitophagy
KW - p53
KW - β-AR
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U2 - 10.1007/s00018-023-04922-5
DO - 10.1007/s00018-023-04922-5
M3 - Article
C2 - 37819449
AN - SCOPUS:85173897582
SN - 1420-682X
VL - 80
JO - Cellular and Molecular Life Sciences
JF - Cellular and Molecular Life Sciences
IS - 11
M1 - 323
ER -