New Iron(III)-Containing Composite of Salinomycinic Acid with Antitumor Activity—Synthesis and Characterization
- Author(s)
- Juliana Ivanova, Rositsa Kukeva, Radostina Stoyanova, Tanya Zhivkova, Abedulkadir Abudalleh, Lora Dyakova, Radostina Alexandrova, Irena Pashkunova-Martic, Johannes Theiner, Peter Dorkov, Michaela Hejl, Michael A. Jakupec, Bernhard Keppler, Ivo Grabchev
- Abstract
In this study we demonstrated for the first time synthetic procedures for composites of salinomycin (SalH) and two-line ferrihydrite. The products were characterized by various methods such as elemental analysis, attenuated total reflectance–Fourier-transform spectroscopy (ATR-FTIR), electron paramagnetic resonance spectroscopy (EPR), powder X-ray diffraction analysis (XRD), electrospray-ionization mass spectrometry (ESI-MS), thermogravimetric analysis with differential thermal analysis (DTA) and mass spectrometry (TG-DTA/MS). The EPR spectra of the isolated compounds consisted of signals associated with both isolated Fe3+ ions and magnetically coupled Fe3+ ions. Powder XRD analyses of the isolated products showed two intense and broad peaks at 9° and 15° 2Θ, corresponding to salinomycinic acid. Broad peaks with very low intensity around 35°, assigned to two-line ferrihydrite, were also registered. Based on the experimental results, we concluded that salinomycin sodium reacted with Fe(III) chloride to form composites consisting of two-line ferrihydrite and salinomycinic acid. One of the composites exerted pronounced antitumor activity in the sub-micromolar concentration range against human cervical cancer (HeLa), non-small-cell lung cancer (A549), colon cancer (SW480), and ovarian teratocarcinoma (CH1/PA1) cells.
- Organisation(s)
- Department of Inorganic Chemistry, Microanalysis Services
- External organisation(s)
- Sofia University "St. Kliment Ohridski", Bulgarian Academy of Sciences (BAS), Medizinische Universität Wien, BIOVET JSC
- Journal
- Inorganics
- Volume
- 12
- ISSN
- 2304-6740
- DOI
- https://doi.org/10.3390/inorganics12080206
- Publication date
- 08-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104003 Inorganic chemistry, 301904 Cancer research
- Keywords
- ASJC Scopus subject areas
- Inorganic Chemistry
- Sustainable Development Goals
- SDG 3 - Good Health and Well-being
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/7c688538-6f41-4bb1-9dee-cd6b922f01e9