Supplementary data for article: Marković, V.; Janićijević, A.; Stanojković, T.; Kolundzija, B.; Sladić, D.; Vujčić, M.; Janović, B.; Joksović, L.; Djurdjevic, P. T.; Todorović, N.; et al. Synthesis, Cytotoxic Activity and DNA-Interaction Studies of Novel Anthraquinone-Thiosemicarbazones with Tautomerizable Methylene Group. European Journal of Medicinal Chemistry 2013, 64, 228–238. https://doi.org/10.1016/j.ejmech.2013.03.071

Supplementary material for: [https://doi.org/10.1016/j.ejmech.2013.03.071]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/1370

Supplementary data for article: Marković, V.; Janićijević, A.; Stanojković, T.; Kolundzija, B.; Sladić, D.; Vujčić, M.; Janović, B.; Joksović, L.; Djurdjevic, P. T.; Todorović, N.; et al. Synthesis, Cytotoxic Activity and DNA-Interaction Studies of Novel Anthraquinone-Thiosemicarbazones with Tautomerizable Methylene Group. European Journal of Medicinal Chemistry 2013, 64, 228–238. https://doi.org/10.1016/j.ejmech.2013.03.071

Supplementary material for: [https://doi.org/10.1016/j.ejmech.2013.03.071]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/1370

Development and validation of spectrofluorimetric and LC–MS/MS methods for the determination of hesperidin in human plasma and pharmaceutical forms

The spectrofluorometric method, based on fluorescence properties of aluminium (III)–hesperidin complex, for the determination of hesperidin in human plasma and pharmaceutical forms has been developed and validated. The complex shows strong emission in the presence of surfactant betain sulfonate SB 12 at 476 nm with excitation at 390 nm. Linearity range in pharmaceutical forms of hesperidin was 0.06 – 24.4 μg mL-1 with LOD 0.016 μg mL-1 and LOQ 0.049 μg mL-1. Recovery values in the range 99.3 – 99.7% indicate good accuracy of the method. A linear dependence of the intensity of fluorescence of the complex on the concentration of hesperidin in plasma was obtained in concentration range from 0.1 – 12.2 μg mL-1. The LOD was 0.032 μg mL-1 while LOQ was 0.096 μg mL-1. Recovery values were in the range 98.4 – 99.8%. The reliability of the method was checked by LC-MS/MS method for plasma samples and HPLC/UV method for tablets with direct determination of hesperidin after separation. Linearity range in determination of hesperidin in pharmaceutical forms was obtained in the range from 0.05 to 10.00 μg mL-1. The LOD was 0.01 μg mL-1 and LOQ was 0.03 μg mL-1. Linearity range in plasma determination of hesperidin was 0.02 – 10.00 μg mL-1 with LOD 0.005 μg mL-1 and LOQ 0.015 μg mL-1. Good agreement between two methods indicate the usability of the proposed spectroflurometric method for the simple, precise and accurate determination of hesperidin in clinical and quality control laboratories

Synthesis, cytotoxic activity and DNA-interaction studies of novel anthraquinone-thiosemicarbazones with tautomerizable methylene group

A series of novel anthraquinone thiosemicarbazone derivatives in a tautomerizable keto-imine form was synthesized and tested for their in vitro cytotoxic activity against human cancer cells (HeLa, MDA-MB-361, MDA-MB-453, K562, A549) and human normal MRC-5 cells. Several compounds efficiently inhibited cancer cell growth at micromolar concentrations, especially against K562 and HeLa cells. As determined by flow cytometric analysis, anthraquinone thiosemicarbazone caused significant increase in the number of sub-G1 phase of HeLa cells and apoptosis in a concentration-dependent manner. Also, inhibition of caspase-3, -8, and -9 with specific caspase inhibitors reduced the apoptosis mediated by the tested compounds in HeLa cells. All anthraquinone-thiosemicarbazones exhibit calf thymus DNA-binding activity, but no cleavage of plasmid DNA was observed.Supplementary material: [http://cherry.chem.bg.ac.rs/handle/123456789/3548