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Title: | Organic Moiety on Sn(IV) Does Matter for In Vitro Mode of Action: nBu<inf>3</inf>Sn(IV) Compounds with Carboxylato N-Functionalized 2-Quinolones Induce Anoikis-like Cell Death in A375 Cells | Authors: | Kasalović, Marijana P. Jelača, Sanja Dimić, Dušan Maksimović-Ivanić, Danijela Jevtić, Verica V. Mijatović, Sanja Rüffer, Tobias Kaluđerović, Goran N. Pantelić, Nebojša n. |
Keywords: | 2-quinolones;apoptosis;BSA interactions;in vitro cytotoxicity;molecular docking;tributyltin(IV) compounds | Issue Date: | 1-Dec-2024 | Journal: | Pharmaceutics | Abstract: | Objectives: New tributyltin(IV) complexes containing the carboxylate ligands 3-(4-methyl-2-oxoquinolin-1(2H)-yl)propanoic acid (HL1) and 2-(4-methyl-2-oxoquinolin-1(2H)-yl)acetic acid (HL2) have been synthesized. Methods: Their structures have been determined by elemental microanalysis, FT-IR and multinuclear NMR (1H, 13C and 119Sn) spectroscopy and X-ray diffraction study. A solution state NMR analysis reveals a four-coordinated tributyltin(IV) complex in non-polar solvents, while an X-Ray crystallographic analysis confirms a five-coordinated trigonal-bipyramidal geometry around the tin atom due to the formation of 1D chains. A theoretical structural analysis was performed by optimization employing B3LYP-D3BJ functional and 6-311++G(d,p)/def2-TZVP(Sn) basis sets for H, C, N, O/Sn, respectively. The interactions between tin(IV) and surrounding atoms were examined by QTAIM approach. The in vitro antiproliferative activity of the synthesized compounds was evaluated by MTT and CV assays versus MCF-7 (human breast adenocarcinoma), HCT116 (human colorectal carcinoma), A375 (human melanoma), 4T1 (mouse breast carcinoma), CT26 (mouse colon carcinoma) and B16 (mouse melanoma) tumor cell lines. Results: Both synthesized compounds (nBu3SnL1 and nBu3SnL2) exerted powerful micromolar IC50 cytotoxicity values and demonstrated high selectivity toward malignant cells. Both experimental drugs affected cell adhesion and induced anchorage independent apoptosis, a favorable type of cell death with an essential role in cancer dissemination prevention. The BSA-binding affinity of the obtained organotin compounds was followed by spectrofluorometric titration and molecular docking simulations. Conclusions: The tributyltin(IV) compounds selectively induce anoikis-like cell death in A375 cells, also highlighting the importance of the organic moiety on the tin(IV) ion in the mechanism of action. |
URI: | https://dspace.ffh.bg.ac.rs/handle/123456789/2405 | DOI: | 10.3390/pharmaceutics16121529 |
Appears in Collections: | Journal Article |
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