TY - JOUR
T1 - Adrenomedullin-CALCRL axis controls relapse-initiating drug tolerant acute myeloid leukemia cells
AU - Larrue, Clément
AU - Guiraud, Nathan
AU - Mouchel, Pierre Luc
AU - Dubois, Marine
AU - Farge, Thomas
AU - Gotanègre, Mathilde
AU - Bosc, Claudie
AU - Saland, Estelle
AU - Nicolau-Travers, Marie Laure
AU - Sabatier, Marie
AU - Serhan, Nizar
AU - Sahal, Ambrine
AU - Boet, Emeline
AU - Mouche, Sarah
AU - Heydt, Quentin
AU - Aroua, Nesrine
AU - Stuani, Lucille
AU - Kaoma, Tony
AU - Angenendt, Linus
AU - Mikesch, Jan Henrik
AU - Schliemann, Christoph
AU - Vergez, François
AU - Tamburini, Jérôme
AU - Récher, Christian
AU - Sarry, Jean Emmanuel
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/1/18
Y1 - 2021/1/18
N2 - Drug tolerant/resistant leukemic stem cell (LSC) subpopulations may explain frequent relapses in acute myeloid leukemia (AML), suggesting that these relapse-initiating cells (RICs) persistent after chemotherapy represent bona fide targets to prevent drug resistance and relapse. We uncover that calcitonin receptor-like receptor (CALCRL) is expressed in RICs, and that the overexpression of CALCRL and/or of its ligand adrenomedullin (ADM), and not CGRP, correlates to adverse outcome in AML. CALCRL knockdown impairs leukemic growth, decreases LSC frequency, and sensitizes to cytarabine in patient-derived xenograft models. Mechanistically, the ADM-CALCRL axis drives cell cycle, DNA repair, and mitochondrial OxPHOS function of AML blasts dependent on E2F1 and BCL2. Finally, CALCRL depletion reduces LSC frequency of RICs post-chemotherapy in vivo. In summary, our data highlight a critical role of ADM-CALCRL in post-chemotherapy persistence of these cells, and disclose a promising therapeutic target to prevent relapse in AML.
AB - Drug tolerant/resistant leukemic stem cell (LSC) subpopulations may explain frequent relapses in acute myeloid leukemia (AML), suggesting that these relapse-initiating cells (RICs) persistent after chemotherapy represent bona fide targets to prevent drug resistance and relapse. We uncover that calcitonin receptor-like receptor (CALCRL) is expressed in RICs, and that the overexpression of CALCRL and/or of its ligand adrenomedullin (ADM), and not CGRP, correlates to adverse outcome in AML. CALCRL knockdown impairs leukemic growth, decreases LSC frequency, and sensitizes to cytarabine in patient-derived xenograft models. Mechanistically, the ADM-CALCRL axis drives cell cycle, DNA repair, and mitochondrial OxPHOS function of AML blasts dependent on E2F1 and BCL2. Finally, CALCRL depletion reduces LSC frequency of RICs post-chemotherapy in vivo. In summary, our data highlight a critical role of ADM-CALCRL in post-chemotherapy persistence of these cells, and disclose a promising therapeutic target to prevent relapse in AML.
UR - http://www.scopus.com/inward/record.url?scp=85100040131&partnerID=8YFLogxK
UR - https://www.ncbi.nlm.nih.gov/pubmed/33462236
U2 - 10.1038/s41467-020-20717-9
DO - 10.1038/s41467-020-20717-9
M3 - Article
C2 - 33462236
AN - SCOPUS:85100040131
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 422
ER -