Poly Organotin Acetates against DNA with Possible Implementation on Human Breast Cancer

International Journal of Molecular Sciences
George K LatsisSotiris K Hadjikakou

Abstract

Two known tin-based polymers of formula {[R₃Sn(CH₃COO)] n } where R = n-Bu⁻ (1) and R = Ph⁻ (2),were evaluated for their in vitro biological properties. The compounds were characterized via their physical properties and FT-IR, 119Sn Mössbauer, and ¹H NMR spectroscopic data. The molecular structures were confirmed by single-crystal X-Ray diffraction crystallography. The geometry around the tin(IV) ion is trigonal bi-pyramidal. Variations in O⁻Sn⁻O···Sn' torsion angles lead to zig-zag and helical supramolecular assemblies for 1 and 2, respectively. The in vitro cell viability against human breast adenocarcinoma cancer cell lines: MCF-7 positive to estrogens receptors (ERs) and MDA-MB-231 negative to ERs upon their incubation with 1 and 2 was investigated. Their toxicity has been studied against normal human fetal lung fibroblast cells (MRC-5). Compounds 1 and 2 exhibit 134 and 223-fold respectively stronger antiproliferative activity against MDA-MB-231 than cisplatin. The type of the cell death caused by 1 or 2 was also determined using flow cytometry assay. The binding affinity of 1 and 2 towards the CT-DNA was suspected from the differentiation of the viscosity which occurred in the solution containing increasing amounts of 1 a...Continue Reading

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Methods Mentioned

BETA
X-Ray
flow cytometry
Assay
Fluorescence
NMR

Software Mentioned

WINGX
CrysAlis RED
AutodockTools
Gaussian03Wsoftware
CrysAlis CCD
SHELXL
AutodockVina
FlowJo
Vina

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