2021
Targeting Mitochondrial Iron Metabolism Suppresses Tumor Growth and Metastasis by Inducing Mitochondrial Dysfunction and Mitophagy
SANDOVAL-ACUNA, Cristian; Natalia TORREALBA; Veronika TOMKOVA; Sukanya B JADHAV; Kristyna BLAZKOVA et al.Základní údaje
Originální název
Targeting Mitochondrial Iron Metabolism Suppresses Tumor Growth and Metastasis by Inducing Mitochondrial Dysfunction and Mitophagy
Autoři
SANDOVAL-ACUNA, Cristian; Natalia TORREALBA; Veronika TOMKOVA; Sukanya B JADHAV; Kristyna BLAZKOVA; Ladislav MERTA; Sandra LETTLOVA; Miroslava K ADAMCOVA; Daniel ROSEL; Jan BRABEK; Jiri NEUZIL; Jan STURSA; Lukas WERNER a Jaroslav TRUKSA
Vydání
Cancer Research, PHILADELPHIA, AMER ASSOC CANCER RESEARCH, 2021, 0008-5472
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30204 Oncology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 13.312
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:90043/21:00139235
Organizační jednotka
CIISB
UT WoS
EID Scopus
Klíčová slova anglicky
SULFUR CLUSTER; CANCER; BIOGENESIS; BREAST; CELLS; DEFERASIROX; EXPRESSION; CHELATORS; STRATEGY; ISCU
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2025 09:16, Mgr. Eva Dubská
Anotace
V originále
Deferoxamine (DFO) represents a widely used iron chelator for the treatment of iron overload. Here we describe the use of mitochondrially targeted deferoxamine (mitoDFO) as a novel approach to preferentially target cancer cells. The agent showed marked cytostatic, cytotoxic, and migrastatic properties in vitro, and it significantly suppressed tumor growth and metastasis in vivo. The underlying molecular mechanisms included (I) impairment of [Fe-S] cluster/heme biogenesis, leading to destabilization and loss of activity of [Fe-S] cluster/heme containing enzymes, (II) inhibition of mitochondrial respiration leading to mitochondrial ROS production, resulting in dysfunctional mitochondria with markedly reduced supercomplexes, and (III) fragmentation of the mitochondrial network and induction of mitophagy. Mitochondrial targeting of DFO represents a way to deprive cancer cells of biologically active iron, which is incompatible with their proliferation and invasion, without disrupting systemic iron metabolism. Our findings highlight the importance of mitochondrial iron metabolism for cancer cells and demonstrate repurposing deferoxamine into an effective anti-cancer drug via mitochondrial targeting.
Návaznosti
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