2024
Dicobalt(ii) helices kill colon cancer cells via enantiomer-specific mechanisms; DNA damage or microtubule disruption
SONG, Hualong; Hana KOSTRHUNOVÁ; Jakub ČERVINKA; Julie MACPHERSON; Jaroslav MALINA et al.Základní údaje
Originální název
Dicobalt(ii) helices kill colon cancer cells via enantiomer-specific mechanisms; DNA damage or microtubule disruption
Autoři
SONG, Hualong; Hana KOSTRHUNOVÁ; Jakub ČERVINKA; Julie MACPHERSON; Jaroslav MALINA; Teena RAJAN; Roger PHILLIPS; Miles POSTINGS; Samantha SHEPHERD; Xuejian ZHANG; Viktor BRABEC; Nicola J ROGERS a Peter SCOTT
Vydání
Chemical Science, Royal Society of Chemistry, 2024, 2041-6520
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 7.400
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/24:00136540
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
H2AX PHOSPHORYLATION; METALLOHELICES; COMPLEXES; RECOGNITION; INHIBITION; GAMMA-H2AX; LIGANDS; POTENT; FE
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 1. 2025 14:32, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Highly diastereoselective self-assembly reactions give both enantiomers (Lambda and Delta) of anti-parallel triple-stranded bimetallic Co(ii) and Co(iii) cationic helices, without the need for resolution; the first such reaction for Co. The complexes are water soluble and stable, even in the case of Co(ii). Studies in a range of cancer and healthy cell lines indicate high activity and selectivity, and substantial differences between enantiomers. The oxidation state has little effect, and correspondingly, Co(iii) compounds are reduced to Co(ii) e.g. by glutathione. In HCT116 colon cancer cells the Lambda enantiomer induces dose-dependent G2-M arrest in the cell cycle and disrupts microtubule architectures. This Co(ii) Lambda enantiomer is ca. five times more potent than the isostructural Fe(ii) compound. Since the measured cellular uptakes are similar this implies a higher affinity of the Co system for the intracellular target(s); while the two systems are isostructural they have substantially different charge distributions as shown by calculated hydrophobicity maps. In contrast to the Lambda enantiomer, Delta-Co(ii) induces G1 arrest in HCT116 cells, efficiently inhibits the topoisomerase I-catalyzed relaxation of supercoiled plasmid DNA, and, unlike the isostructural Fe(ii) system, causes DNA damage. It thus seems very likely that redox chemistry plays a role in the latter.