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Half-Sandwich Ir(III) Complex of N1-Pyridyl-7-azaindole Exceeds Cytotoxicity of Cisplatin at Various Human Cancer Cells and 3D Multicellular Tumor Spheroids

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73591068" target="_blank" >RIV/61989592:15310/18:73591068 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://pubs.acs.org/doi/pdf/10.1021/acs.organomet.8b00415" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acs.organomet.8b00415</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/acs.organomet.8b00415" target="_blank" >10.1021/acs.organomet.8b00415</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Half-Sandwich Ir(III) Complex of N1-Pyridyl-7-azaindole Exceeds Cytotoxicity of Cisplatin at Various Human Cancer Cells and 3D Multicellular Tumor Spheroids

  • Popis výsledku v původním jazyce

    The half-sandwich iridium(III) complexes [Ir-(eta(5)-Cp-x)(phaza(-))Cl] (1, 2), [Ir(eta(5)-Cp-x)(thaza(-))Cl] (3, 4), and [Ir(eta(5)-Cp-x)(pyaza)Cl]PF6 (5, 6) containing deprotonated 1-phenyl-7-azaindole (phaza(-)) and 1-(thiophen-2-yl)-7-azaindole (thaza(-)) and electroneutral 1-(pyridin-2-yl)-7-azaindole (pyaza), were prepared; Cp-x = pentamethylcyclopentadienyl (Cp*; for 1, 3, and 5) or 1,2,3,4-tetramethyl-5-phenyl-cyclopentadienyl (Cp-Ph; for 2, 4, and 6). The complexes were thoroughly characterized, including a single-crystal X-ray analysis of complexes 1, 5, and 6. All of the complexes were screened for their in vitro cytotoxicity at the A2780 human ovarian carcinoma cell line and its A2780R cisplatin-resistant variant (2D culture cells). The best-performing complex 6 was further studied against the human DU-145 prostatic carcinoma, A549 lung carcinoma, HCT116 colon carcinoma, HeLa cervix adenocarcinoma, and MCF7 breast adenocarcinoma cell lines (2D culture cells). Complex 6 showed a cytotoxic profile different from that of cisplatin at the used cells, with the highest activity detected at the A2780, MCF7, and HCT116 cells (IC50 = 3.1, 6.9, and 10.4 mu M, respectively). Complex 6 exhibited relevant selectivity toward cancer cells (IC50 = 3.1-13.0 mu M) over the MRC-5 human noncancerous lung fibroblast cells (IC50 &gt; 50.0 mu M). Complex 6 was markedly more accumulated by the A2780 cells in comparison to cisplatin after 24 h exposure. Flow cytometry studies showed that the cell cycle of the A2780 cells treated by complex 6 is modified differently (G(0)/G(1), arrest) in comparison to cisplatin (G(2)/M arrest). Additionally to the monolayer (2D) cancer cell cultures, the cytotoxicity of complex 6 was for the first time among half-sandwich iridium(III) complexes also assessed at spheroid (3D) MCF7 cells, where its potency (IC50 = 22.9 mu M for complex 6) remained significantly better than that for the reference drug cisplatin (IC50 = 35.4 mu M).

  • Název v anglickém jazyce

    Half-Sandwich Ir(III) Complex of N1-Pyridyl-7-azaindole Exceeds Cytotoxicity of Cisplatin at Various Human Cancer Cells and 3D Multicellular Tumor Spheroids

  • Popis výsledku anglicky

    The half-sandwich iridium(III) complexes [Ir-(eta(5)-Cp-x)(phaza(-))Cl] (1, 2), [Ir(eta(5)-Cp-x)(thaza(-))Cl] (3, 4), and [Ir(eta(5)-Cp-x)(pyaza)Cl]PF6 (5, 6) containing deprotonated 1-phenyl-7-azaindole (phaza(-)) and 1-(thiophen-2-yl)-7-azaindole (thaza(-)) and electroneutral 1-(pyridin-2-yl)-7-azaindole (pyaza), were prepared; Cp-x = pentamethylcyclopentadienyl (Cp*; for 1, 3, and 5) or 1,2,3,4-tetramethyl-5-phenyl-cyclopentadienyl (Cp-Ph; for 2, 4, and 6). The complexes were thoroughly characterized, including a single-crystal X-ray analysis of complexes 1, 5, and 6. All of the complexes were screened for their in vitro cytotoxicity at the A2780 human ovarian carcinoma cell line and its A2780R cisplatin-resistant variant (2D culture cells). The best-performing complex 6 was further studied against the human DU-145 prostatic carcinoma, A549 lung carcinoma, HCT116 colon carcinoma, HeLa cervix adenocarcinoma, and MCF7 breast adenocarcinoma cell lines (2D culture cells). Complex 6 showed a cytotoxic profile different from that of cisplatin at the used cells, with the highest activity detected at the A2780, MCF7, and HCT116 cells (IC50 = 3.1, 6.9, and 10.4 mu M, respectively). Complex 6 exhibited relevant selectivity toward cancer cells (IC50 = 3.1-13.0 mu M) over the MRC-5 human noncancerous lung fibroblast cells (IC50 &gt; 50.0 mu M). Complex 6 was markedly more accumulated by the A2780 cells in comparison to cisplatin after 24 h exposure. Flow cytometry studies showed that the cell cycle of the A2780 cells treated by complex 6 is modified differently (G(0)/G(1), arrest) in comparison to cisplatin (G(2)/M arrest). Additionally to the monolayer (2D) cancer cell cultures, the cytotoxicity of complex 6 was for the first time among half-sandwich iridium(III) complexes also assessed at spheroid (3D) MCF7 cells, where its potency (IC50 = 22.9 mu M for complex 6) remained significantly better than that for the reference drug cisplatin (IC50 = 35.4 mu M).

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10402 - Inorganic and nuclear chemistry

Návaznosti výsledku

  • Projekt

    Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    ORGANOMETALLICS

  • ISSN

    0276-7333

  • e-ISSN

  • Svazek periodika

    37

  • Číslo periodika v rámci svazku

    16

  • Stát vydavatele periodika

    US - Spojené státy americké

  • Počet stran výsledku

    11

  • Strana od-do

    2749-2759

  • Kód UT WoS článku

    000443526200013

  • EID výsledku v databázi Scopus

    2-s2.0-85052704111