1
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Petkov N, Pantcheva I, Ivanova A, Stoyanova R, Kukeva R, Alexandrova R, Abudalleh A, Dorkov P. Novel Cerium(IV) Coordination Compounds of Monensin and Salinomycin. Molecules 2023; 28:4676. [PMID: 37375231 DOI: 10.3390/molecules28124676] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/01/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The largely uncharted complexation chemistry of the veterinary polyether ionophores, monensic and salinomycinic acids (HL) with metal ions of type M4+ and the known antiproliferative potential of antibiotics has provoked our interest in exploring the coordination processes between MonH/SalH and ions of Ce4+. (1) Methods: Novel monensinate and salinomycinate cerium(IV)-based complexes were synthesized and structurally characterized by elemental analysis, a plethora of physicochemical methods, density functional theory, molecular dynamics, and biological assays. (2) Results: The formation of coordination species of a general composition [CeL2(OH)2] and [CeL(NO3)2(OH)], depending on reaction conditions, was proven both experimentally and theoretically. The metal(IV) complexes [CeL(NO3)2(OH)] possess promising cytotoxic activity against the human tumor uterine cervix (HeLa) cell line, being highly selective (non-tumor embryo Lep-3 vs. HeLa) compared to cisplatin, oxaliplatin, and epirubicin.
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Affiliation(s)
- Nikolay Petkov
- Faculty of Chemistry and Pharmacy, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria
| | - Ivayla Pantcheva
- Faculty of Chemistry and Pharmacy, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria
| | - Anela Ivanova
- Faculty of Chemistry and Pharmacy, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria
| | - Radostina Stoyanova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Rositsa Kukeva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Radostina Alexandrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Abedullkader Abudalleh
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Petar Dorkov
- Research and Development Department, Biovet Ltd., 4550 Peshtera, Bulgaria
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2
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Synthesis of urea and thiourea derivatives of C20-epi-aminosalinomycin and their activity against Trypanosoma brucei. Eur J Med Chem 2023; 250:115241. [PMID: 36870272 DOI: 10.1016/j.ejmech.2023.115241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/09/2023] [Accepted: 02/24/2023] [Indexed: 02/27/2023]
Abstract
Salinomycin (SAL) is a natural polyether ionophore that exhibits a very broad spectrum of biological effects, ranging from anticancer to antiparasitic activities. Our recent studies have shown that the chemical modification of the SAL biomolecule is a fruitful strategy for generating lead compounds for the development of novel antitrypanosomal agents. As a continuation of our program to develop trypanocidal active lead structures, we synthesized a series of 14 novel urea and thiourea analogs of C20-epi-aminosalinomycin (compound 2b). The trypanocidal and cytotoxic activities of the derivatives were assessed with the mammalian life cycle stage of Trypanosoma brucei and human leukemic HL-60 cells, respectively. The most antitrypanosomal compounds were the two thiourea derivatives 4b (C20-n-butylthiourea) and 4d (C20-phenylthiourea) with 50% growth inhibition (GI50) values of 0.18 and 0.22 μM and selectivity indices of 47 and 41, respectively. As potent SAL derivatives have been shown to induce strong cell swelling in bloodstream forms of T. brucei, the effect of compounds 4b and 4d to increase the cell volume of the parasite was also investigated. Interestingly, both derivatives were capable to induce faster cell swelling in bloodstream-form trypanosomes than the reference compound SAL. These findings support the suggestion that C20-epi-aminosalinomycin derivatives are suitable leads in the rational development of new and improved trypanocidal drugs.
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3
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Steverding D, Strand D, Huczyński A. Trypanocidal and cell swelling activity of 20-deoxysalinomycin. Exp Parasitol 2022; 243:108414. [DOI: 10.1016/j.exppara.2022.108414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/12/2022] [Accepted: 10/18/2022] [Indexed: 11/28/2022]
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4
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Antoszczak M, Müller S, Cañeque T, Colombeau L, Dusetti N, Santofimia-Castaño P, Gaillet C, Puisieux A, Iovanna JL, Rodriguez R. Iron-Sensitive Prodrugs That Trigger Active Ferroptosis in Drug-Tolerant Pancreatic Cancer Cells. J Am Chem Soc 2022; 144:11536-11545. [PMID: 35696539 DOI: 10.1021/jacs.2c03973] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Persister cancer cells represent rare populations of cells resistant to therapy. Cancer cells can exploit epithelial-mesenchymal plasticity to adopt a drug-tolerant state that does not depend on genetic alterations. Small molecules that can interfere with cell plasticity or kill cells in a cell state-dependent manner are highly sought after. Salinomycin has been shown to kill cancer cells in the mesenchymal state by sequestering iron in lysosomes, taking advantage of the iron addiction of this cell state. Here, we report the chemo- and stereoselective synthesis of a series of structurally complex small molecule chimeras of salinomycin derivatives and the iron-reactive dihydroartemisinin. We show that these chimeras accumulate in lysosomes and can react with iron to release bioactive species, thereby inducing ferroptosis in drug-tolerant pancreatic cancer cells and biopsy-derived organoids of pancreatic ductal adenocarcinoma. This work paves the way toward the development of new cancer medicines acting through active ferroptosis.
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Affiliation(s)
- Michał Antoszczak
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Sebastian Müller
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Tatiana Cañeque
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Ludovic Colombeau
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Nelson Dusetti
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Patricia Santofimia-Castaño
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Christine Gaillet
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Alain Puisieux
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Juan Lucio Iovanna
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Raphaël Rodriguez
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
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5
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Alkaline-earth metal(II) complexes of salinomycin – spectral properties and antibacterial activity. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present paper the synthesis and structural characterization of alkaline-earth metal(II) complexes of the polyether ionophorous antibiotic salinomycinic acid (SalH.H2O) are discussed. The complexes [M(Sal)2(H2O)2] (M = Mg2+, 1; Ca2+, 2; Sr2+, 3; Ba2+, 4) were obtained reacting salinomycinic acid and Et4NOH with the corresponding metal(II) salts at metal-to-ligand-to-base molar ratio of 1:1:1. The spectral properties of 1–4 were characterized using infrared spectroscopy, fast atom bombardment-mass spectrometry, nuclear magnetic resonance and elemental analysis data. The crystallinity degree and morphology of complex 2 were studied by X-ray powder diffraction and transmission electron microscopy. The biometal(II) salinomycinate complexes 1 and 2 possess an enhanced antimicrobial activity compared to the parent antibiotic against Gram-positive bacteria. The comparison between the effectiveness of the complexes, reported here, and the already known isostructural coordination species of salinomycin and monensin (MonH.H2O), revealed that magnesium(II) and calcium(II) monensinates appear to be promising antibacterial agents against Bacillus subtilis, Bacillus cereus and Micrococcus luteus.
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Li B, Wu J, Tang L, Lian X, Li Z, Duan W, Qin T, Zhao X, Hu Y, Zhang C, Li T, Hao J, Zhang W, Zhang J, Wu S. Synthesis and anti-tumor activity evaluation of salinomycin C20- O-alkyl/benzyl oxime derivatives. Org Biomol Chem 2022; 20:870-876. [PMID: 35006233 DOI: 10.1039/d1ob02292j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Seventeen C20-O-alkyl/benzyl oxime derivatives were synthesized by a concise and effective method. Most of these derivatives showed tens to several hundred nanomolar IC50 values against HT-29 colorectal, HGC-27 gastric and MDA-MB-231 breast cancer cells, whose antiproliferative activity is 15-240 fold better than that of salinomycin. The C20-oxime etherified derivatives can coordinate potassium ions, and further adjust the cytosolic Ca2+ concentrations in HT-29 cells. The significant improvement of the potency should be attributed to the better ion binding and transport ability of the modified derivatives. In addition, the C20-O-alkyl/benzyl oxime derivatives showed much better selectivity indexes (SI) than salinomycin, indicating that they present lower neurotoxic risk.
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Affiliation(s)
- Bo Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Jun Wu
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,National Stem Cell Resource Center, Chinese Academy of Sciences, Beijing 100101, China
| | - Lei Tang
- Medical School of Kunming University of Science and Technology, Kunming, 650031, China.
| | - Xu Lian
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Zhongwen Li
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,National Stem Cell Resource Center, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenfang Duan
- Medical School of Kunming University of Science and Technology, Kunming, 650031, China.
| | - Tong Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Xintong Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Yuhua Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Chi Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Tianlei Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Jie Hao
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,National Stem Cell Resource Center, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenxuan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Jihong Zhang
- Medical School of Kunming University of Science and Technology, Kunming, 650031, China.
| | - Song Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
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7
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Dudev T, Cheshmedzhieva D, Dorkov P, Pantcheva I. A DFT/PCM Study on the Affinity of Salinomycin to Bind Monovalent Metal Cations. Molecules 2022; 27:532. [PMID: 35056843 PMCID: PMC8779476 DOI: 10.3390/molecules27020532] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/08/2022] [Accepted: 01/11/2022] [Indexed: 11/29/2022] Open
Abstract
The affinity of the polyether ionophore salinomycin to bind IA/IB metal ions was accessed using the Gibbs free energy of the competition reaction between SalNa (taken as a reference) and its rival ions: [M+-solution] + [SalNa] → [SalM] + [Na+-solution] (M = Li, K, Rb, Cs, Cu, Ag, Au). The DFT/PCM computations revealed that the ionic radius, charge density and accepting ability of the competing metal cations, as well as the dielectric properties of the solvent, have an influence upon the selectivity of salinomycin. The optimized structures of the monovalent metal complexes demonstrate the flexibility of the ionophore, allowing the coordination of one or two water ligands in SalM-W1 and SalM-W2, respectively. The metal cations are responsible for the inner coordination sphere geometry, with coordination numbers spread between 2 (Au+), 4 (Li+ and Cu+), 5/6 (Na+, K+, Ag+), 6/7 (Rb+) and 7/8 (Cs+). The metals' affinity to salinomycin in low-polarity media follows the order of Li+ > Cu+ > Na+ > K+ > Au+ > Ag+ > Rb+ > Cs+, whereas some derangement takes place in high-dielectric environment: Li+ ≥ Na+ > K+ > Cu+ > Au+ > Ag+ > Rb+ > Cs+.
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Affiliation(s)
- Todor Dudev
- Laboratory of Computational Chemistry and Spectroscopy, Faculty of Chemistry and Pharmacy, “St. Kl. Ohridski” University of Sofia, 1164 Sofia, Bulgaria;
| | - Diana Cheshmedzhieva
- Laboratory of Computational Chemistry and Spectroscopy, Faculty of Chemistry and Pharmacy, “St. Kl. Ohridski” University of Sofia, 1164 Sofia, Bulgaria;
| | - Peter Dorkov
- Research & Development Department, Biovet Ltd., 4550 Peshtera, Bulgaria;
| | - Ivayla Pantcheva
- Laboratory of Biocoordination and Bioanalytical Chemistry, Faculty of Chemistry and Pharmacy, “St. Kl. Ohridski” University of Sofia, 1164 Sofia, Bulgaria
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8
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Qi D, Liu Y, Li J, Huang JH, Hu X, Wu E. Salinomycin as a potent anticancer stem cell agent: State of the art and future directions. Med Res Rev 2021; 42:1037-1063. [PMID: 34786735 PMCID: PMC9298915 DOI: 10.1002/med.21870] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022]
Abstract
Cancer stem cells (CSCs) are a small subpopulation of cells within a tumor that can both self‐renew and differentiate into other cell types forming the heterogeneous tumor bulk. Since CSCs are involved in all aspects of cancer development, including tumor initiation, cell proliferation, metastatic dissemination, therapy resistance, and recurrence, they have emerged as attractive targets for cancer treatment and management. Salinomycin, a widely used antibiotic in poultry farming, was identified by the Weinberg group as a potent anti‐CSC agent in 2009. As a polyether ionophore, salinomycin exerts broad‐spectrum activities, including the important anti‐CSC function. Studies on the mechanism of action of salinomycin against cancer have been continuously and rapidly published since then. Thus, it is imperative for us to update its literature of recent research findings in this area. We here summarize the notable work reported on salinomycin's anticancer activities, intracellular binding target(s), effects on tumor microenvironment, safety, derivatives, and tumor‐specific drug delivery; after that we also discuss the translational potential of salinomycin toward clinical application based on current multifaceted understandings.
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Affiliation(s)
- Dan Qi
- Department of Neurosurgery, Baylor Scott & White Health, Temple, Texas, USA.,Neuroscience Institute, Baylor Scott & White Health, Temple, Texas, USA
| | - Yunyi Liu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha, China
| | - Juan Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha, China
| | - Jason H Huang
- Department of Neurosurgery, Baylor Scott & White Health, Temple, Texas, USA.,Neuroscience Institute, Baylor Scott & White Health, Temple, Texas, USA.,Department of Surgery, Texas A&M University College of Medicine, Temple, Texas, USA
| | - Xiaoxiao Hu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha, China.,Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Erxi Wu
- Department of Neurosurgery, Baylor Scott & White Health, Temple, Texas, USA.,Neuroscience Institute, Baylor Scott & White Health, Temple, Texas, USA.,Department of Surgery, Texas A&M University College of Medicine, Temple, Texas, USA.,LIVESTRONG Cancer Institutes and Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, Texas, USA.,Department of Pharmaceutical Sciences, Texas A&M University College of Pharmacy, College Station, Texas, USA
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9
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Zhao Y, Wang K, Zheng Y, Zeng X, Lim YC, Liu T. Co-delivery of Salinomycin and Curcumin for Cancer Stem Cell Treatment by Inhibition of Cell Proliferation, Cell Cycle Arrest, and Epithelial-Mesenchymal Transition. Front Chem 2021; 8:601649. [PMID: 33520933 PMCID: PMC7843432 DOI: 10.3389/fchem.2020.601649] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/09/2020] [Indexed: 12/16/2022] Open
Abstract
Malignant cancer is a devastating disease often associated with a poor clinical prognosis. For decades, modern drug discoveries have attempted to identify potential modulators that can impede tumor growth. Cancer stem cells however are more resistant to therapeutic intervention, which often leads to treatment failure and subsequent disease recurrence. Here in this study, we have developed a specific multi-target drug delivery nanoparticle system against breast cancer stem cells (BCSCs). Therapeutic agents curcumin and salinomycin have complementary functions of limiting therapeutic resistance and eliciting cellular death, respectively. By conjugation of CD44 cell-surface glycoprotein with poly(lactic-co-glycolic acid) (PLGA) nanoparticles that are loaded with curcumin and salinomycin, we investigated the cellular uptake of BCSCs, drug release, and therapeutic efficacy against BCSCs. We determined CD44-targeting co-delivery nanoparticles are highly efficacious against BCSCs by inducing G1 cell cycle arrest and limiting epithelial–mesenchymal transition. This curcumin and salinomycin co-delivery system can be an efficient treatment approach to target malignant cancer without the repercussion of disease recurrence.
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Affiliation(s)
- Yongmei Zhao
- School of Pharmacy, Nantong University, Nantong, China
| | - Kaikai Wang
- School of Pharmacy, Nantong University, Nantong, China
| | - Yuanlin Zheng
- School of Pharmacy, Nantong University, Nantong, China
| | - Xiaobao Zeng
- School of Pharmacy, Nantong University, Nantong, China
| | - Yi Chieh Lim
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Tianqing Liu
- NICM Health Research Institute, Western Sydney University, Sydney, NSW, Australia
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10
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Ross EE, Hoag B, Joslin I, Johnston T. Measurements of Ion Binding to Lipid-Hosted Ionophores by Affinity Chromatography. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9410-9421. [PMID: 31282163 DOI: 10.1021/acs.langmuir.9b01301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The binding affinity between antibiotic ionophores and alkali ions within supported lipid bilayers was evaluated using affinity chromatography. We used zonal elution and frontal analysis methods in nanovolume liquid chromatography to characterize the binding selectivity of the carrier and channel ionophores valinomycin and gramicidin A within different phosphatidylcholine bilayers. Distinct binding sensitivity to the lipid phase, both in affinity and selectivity, is observed for valinomycin, whereas gramicidin is less sensitive to changes in a membrane environment, behavior that is consistent with ion binding occurring within the interior of an established channel. There is good agreement between the chromatographic retention and the reported binding selectivity measured by other techniques. Surface potential near the binding site affects ion retention and the apparent association binding constants, but not the binding selectivity or enthalpy measurements. A model accounting for the surface potential contributions of retained ions during frontal analyses yields values close to intrinsic binding constants for gramicidin A (KA for K+ between 70 and 120 M-1) using reasonable estimates of the initial potential that is postulated to arise from the underlying silica.
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Affiliation(s)
- Eric E Ross
- Department of Chemistry & Biochemistry , Gonzaga University , Spokane , Washington 99258 , United States
| | - Bridget Hoag
- Department of Chemistry & Biochemistry , Gonzaga University , Spokane , Washington 99258 , United States
| | - Ian Joslin
- Department of Chemistry & Biochemistry , Gonzaga University , Spokane , Washington 99258 , United States
| | - Taylor Johnston
- Department of Chemistry & Biochemistry , Gonzaga University , Spokane , Washington 99258 , United States
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11
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Markowska A, Kaysiewicz J, Markowska J, Huczyński A. Doxycycline, salinomycin, monensin and ivermectin repositioned as cancer drugs. Bioorg Med Chem Lett 2019; 29:1549-1554. [PMID: 31054863 DOI: 10.1016/j.bmcl.2019.04.045] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/24/2019] [Accepted: 04/26/2019] [Indexed: 01/24/2023]
Abstract
Chemotherapy is one of the standard methods for the treatment of malignant tumors. It aims to cause lethal damage to cellular structures, mainly DNA. Noteworthy, in recent years discoveries of novel anticancer agents from well-known antibiotics have opened up new treatment pathways for several cancer diseases. The aim of this review article is to describe new applications for the following antibiotics: doxycycline (DOX), salinomycin (SAL), monensin (MON) and ivermectin (IVR) as they are known to show anti-tumor activity, but have not yet been introduced into standard oncological therapy. To date, these agents have been used for the treatment of a broad-spectrum of bacterial and parasitic infectious diseases and are widely available, which is why they were selected. The data presented here clearly show that the antibiotics mentioned above should be recognised in the near future as novel agents able to eradicate cancer cells and cancer stem cells (CSCs) across several cancer types.
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Affiliation(s)
- Anna Markowska
- Department of Perinatology and Women's Diseases, Poznan University of Medical Sciences, Polna 33, 60-545 Poznan, Poland
| | | | - Janina Markowska
- Department of Oncology, Poznan University of Medical Sciences, Szamarzewskiego 82/84, 60-569 Poznan, Poland
| | - Adam Huczyński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznan, Poland.
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12
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Zhao Y, Zhao W, Lim YC, Liu T. Salinomycin-Loaded Gold Nanoparticles for Treating Cancer Stem Cells by Ferroptosis-Induced Cell Death. Mol Pharm 2019; 16:2532-2539. [DOI: 10.1021/acs.molpharmaceut.9b00132] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yongmei Zhao
- School of Pharmacy, Nantong University, Nantong 226019, China
| | - Wei Zhao
- School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Yi Chieh Lim
- Danish Cancer Society Research Center, Copenhagen 2100, Denmark
| | - Tianqing Liu
- QIMR Berghofer Medical Research Institute, Brisbane, QLD 1006, Australia
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13
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Antoszczak M, Steverding D, Huczyński A. Anti-parasitic activity of polyether ionophores. Eur J Med Chem 2019; 166:32-47. [DOI: 10.1016/j.ejmech.2019.01.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/08/2019] [Accepted: 01/15/2019] [Indexed: 02/04/2023]
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14
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Cañeque T, Müller S, Lafon A, Sindikubwabo F, Versini A, Saier L, Barutaut M, Gaillet C, Rodriguez R. Reprogramming the chemical reactivity of iron in cancer stem cells. CR CHIM 2018. [DOI: 10.1016/j.crci.2018.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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16
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Zhang W, Wu J, Li B, Lian X, Xia J, Zhou Q, Wu S. Design and synthesis of conformationally constrained salinomycin derivatives. Eur J Med Chem 2017; 138:353-356. [DOI: 10.1016/j.ejmech.2017.06.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/27/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
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17
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Salinomycin kills cancer stem cells by sequestering iron in lysosomes. Nat Chem 2017; 9:1025-1033. [PMID: 28937680 DOI: 10.1038/nchem.2778] [Citation(s) in RCA: 358] [Impact Index Per Article: 51.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 04/03/2017] [Indexed: 12/30/2022]
Abstract
Cancer stem cells (CSCs) represent a subset of cells within tumours that exhibit self-renewal properties and the capacity to seed tumours. CSCs are typically refractory to conventional treatments and have been associated to metastasis and relapse. Salinomycin operates as a selective agent against CSCs through mechanisms that remain elusive. Here, we provide evidence that a synthetic derivative of salinomycin, which we named ironomycin (AM5), exhibits a more potent and selective activity against breast CSCs in vitro and in vivo, by accumulating and sequestering iron in lysosomes. In response to the ensuing cytoplasmic depletion of iron, cells triggered the degradation of ferritin in lysosomes, leading to further iron loading in this organelle. Iron-mediated production of reactive oxygen species promoted lysosomal membrane permeabilization, activating a cell death pathway consistent with ferroptosis. These findings reveal the prevalence of iron homeostasis in breast CSCs, pointing towards iron and iron-mediated processes as potential targets against these cells.
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Spectroscopic and structural studies of the first complex formed between salinomycin and organic amine. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Müller S, Cañeque T, Acevedo V, Rodriguez R. Targeting Cancer Stem Cells with Small Molecules. Isr J Chem 2017. [DOI: 10.1002/ijch.201600109] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sebastian Müller
- Institut Curie Research Center; CNRS UMR 3666; Organic Synthesis and Cell Biology Group; 26 rue d'Ulm 75248 Paris France
| | - Tatiana Cañeque
- Institut Curie Research Center; CNRS UMR 3666; Organic Synthesis and Cell Biology Group; 26 rue d'Ulm 75248 Paris France
| | - Verónica Acevedo
- Institut Curie Research Center; CNRS UMR 3666; Organic Synthesis and Cell Biology Group; 26 rue d'Ulm 75248 Paris France
| | - Raphaël Rodriguez
- Institut Curie Research Center; CNRS UMR 3666; Organic Synthesis and Cell Biology Group; 26 rue d'Ulm 75248 Paris France
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20
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Borgström B, Huang X, Hegardt C, Oredsson S, Strand D. Structure-Activity Relationships in Salinomycin: Cytotoxicity and Phenotype Selectivity of Semi-synthetic Derivatives. Chemistry 2016; 23:2077-2083. [PMID: 27740704 DOI: 10.1002/chem.201603621] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Indexed: 01/09/2023]
Abstract
The ionophore salinomycin has attracted attention for its exceptional ability to selectively reduce the proportion of cells with stem-like properties in cancer cell populations of varying origin. Targeting the tumorigenicity of such cells is of interest as they are implicated in recurrence, metastasis, and drug resistance. Structural derivatives of salinomycin are thus sought after, both as tools for probing the molecular mechanism(s) underlying the observed phenotype effects, and for improving selectivity and activity against cancer stem cells. Synthetic strategies for modification of each of the directly accessible functional groups of salinomycin are presented and the resulting library of analogues was investigated to establish structure-activity relationships, both with respect to cytotoxicity and phenotype selectivity in breast cancer cells. 20-O-Acylated derivatives stand out by exhibiting both improved selectivity and activity. Mechanistically, the importance of the ionophore properties of salinomycin is highlighted by a significant loss of activity by modifications directly interfering with either of the two primary ion coordinating motifs in salinomycin, the C11 ketone and the C1 carboxylate.
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Affiliation(s)
- Björn Borgström
- Centre for Analysis and Synthesis, Lund University, Box 124, 22100, Lund, Sweden
| | - Xiaoli Huang
- Department of Biology, Lund University, Sölvegatan 35/37, 223 62, Lund, Sweden
| | - Cecilia Hegardt
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Medicon Village, 223 81, Lund, Sweden
| | - Stina Oredsson
- Department of Biology, Lund University, Sölvegatan 35/37, 223 62, Lund, Sweden
| | - Daniel Strand
- Centre for Analysis and Synthesis, Lund University, Box 124, 22100, Lund, Sweden
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Zhang W, Wu J, Li B, Wu H, Wang L, Hao J, Wu S, Zhou Q. Structure-activity & structure-toxicity relationship study of salinomycin diastereoisomers and their benzoylated derivatives. Org Biomol Chem 2016; 14:2840-5. [PMID: 26795020 DOI: 10.1039/c5ob02303c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Salinomycin diastereoisomers and their benzoylated derivatives were synthesized and evaluated for both antiproliferative activity and neurotoxicity in vitro. The results indicated that the stereoscopic configurations of the spiro C17 and C21 atoms as well as the benzoyl groups of O-20 on the rigid B/C/D spiro-ketal structures are crucial for biological activity and neural toxicity. In general, there are some positive correlations between the antiproliferative activity and neurotoxicity in these salinomycin derivatives, indicating possibly similar mechanisms of action.
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Affiliation(s)
- Wenxuan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Jun Wu
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Bo Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Hongna Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Liu Wang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Jie Hao
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Song Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
| | - Qi Zhou
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
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22
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Sun P, Pavlostathis SG, Huang CH. Estimation of environmentally relevant chemical properties of veterinary ionophore antibiotics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:18353-18361. [PMID: 27282367 DOI: 10.1007/s11356-016-7029-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
Monensin (MON) and salinomycin (SAL), known as polyether ionophore antibiotics (IPAs), are extensively used in livestock industry and can enter the environment via animal manure and agricultural runoff. Although some studies have investigated the environmental fate and transformation of IPAs, the lack of information on IPAs' aqueous-phase chemical properties is a major hindrance for further in-depth research. This study was able to experimentally determine the acidity constants (pKa), metal-complex dissociation constants (Kdiss), and intrinsic aqueous solubility of MON species, and some of these properties of SAL. The pKa value of MON was found to be 4.5, close to other aliphatic carboxylic acids and the predicted value by the computer program ChemAxon. The metal-complex dissociation constants of MON were estimated to be 0.058 and 0.573 with sodium ion (Na(+)) and potassium ion (K(+)), respectively. The Kdiss value of SAL with sodium ion was found to be 1.31. Compared to the previous values determined in organic solvents, the Kdiss of MON in aqueous phase are several orders of magnitude higher but maintain the same relative selectivity toward metal ions (Na(+) versus K(+)). The determined pKa and Kdiss values were also used to assess the aqueous solubility limits of different IPA species under different pH and metal ion concentrations. Results from this study provide more accurate information for the properties of IPAs. The obtained constants can be applied to predict the speciation of IPAs in various aquatic systems and help shed light on the environmental fate of IPAs.
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Affiliation(s)
- Peizhe Sun
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Spyros G Pavlostathis
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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23
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Borgström B, Huang X, Chygorin E, Oredsson S, Strand D. Salinomycin Hydroxamic Acids: Synthesis, Structure, and Biological Activity of Polyether Ionophore Hybrids. ACS Med Chem Lett 2016; 7:635-40. [PMID: 27326340 DOI: 10.1021/acsmedchemlett.6b00079] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 04/25/2016] [Indexed: 01/16/2023] Open
Abstract
The polyether ionophore salinomycin has recently gained attention due to its exceptional ability to selectively reduce the proportion of cancer stem cells within a number of cancer cell lines. Efficient single step strategies for the preparation of hydroxamic acid hybrids of this compound varying in N- and O-alkylation are presented. The parent hydroxamic acid, salinomycin-NHOH, forms both inclusion complexes and well-defined electroneutral complexes with potassium and sodium cations via 1,3-coordination by the hydroxamic acid moiety to the metal ion. A crystal structure of an cationic sodium complex with a noncoordinating anion corroborates this finding and, moreover, reveals a novel type of hydrogen bond network that stabilizes the head-to-tail conformation that encapsulates the cation analogously to the native structure. The hydroxamic acid derivatives display down to single digit micromolar activity against cancer cells but unlike salinomycin selective reduction of ALDH(+) cells, a phenotype associated with cancer stem cells was not observed. Mechanistic implications are discussed.
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Affiliation(s)
- Björn Borgström
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Xiaoli Huang
- Department
of Biology, Lund University, 221 00 Lund, Sweden
| | - Eduard Chygorin
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Stina Oredsson
- Department
of Biology, Lund University, 221 00 Lund, Sweden
| | - Daniel Strand
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
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24
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Shi Q, Li Y, Bo S, Li X, Zhao P, Liu Q, Yang Z, Cong H, Deng H, Chen M, Chen S, Zhou X, Ding H, Jiang ZX. Discovery of a (19)F MRI sensitive salinomycin derivative with high cytotoxicity towards cancer cells. Chem Commun (Camb) 2016; 52:5136-9. [PMID: 26997457 DOI: 10.1039/c6cc01508e] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Salinomycin is a promising anti-cancer agent which selectively targets cancer stem cells. To improve its potency and selectivity, an analog library of salinomycin was generated by site-specific modification and CuAAc derivatization. Through a cytotoxicity analysis of the library, a fluorinated analog with high potency, selectivity, and (19)F MRI sensitivity was discovered as a novel theranostic agent.
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Affiliation(s)
- Qiuyan Shi
- School of Pharmaceutical Sciences and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430071, China.
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Zhang W, Wu J, Li B, Xia J, Wu H, Wang L, Hao J, Zhou Q, Wu S. Synthesis and biological activity evaluation of 20-epi-salinomycin and its 20-O-acyl derivatives. RSC Adv 2016. [DOI: 10.1039/c6ra08967d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
20-epi-Salinomycin and six 20-O-acylated analogs were synthesized and tested for their biological activity.
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Affiliation(s)
- Wenxuan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Jun Wu
- State Key Laboratory of Reproductive Biology
- Institute of Zoology
- Chinese Academy of Sciences
- Beijing 100101
- China
| | - Bo Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Jie Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Hongna Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Liu Wang
- State Key Laboratory of Reproductive Biology
- Institute of Zoology
- Chinese Academy of Sciences
- Beijing 100101
- China
| | - Jie Hao
- State Key Laboratory of Reproductive Biology
- Institute of Zoology
- Chinese Academy of Sciences
- Beijing 100101
- China
| | - Qi Zhou
- State Key Laboratory of Reproductive Biology
- Institute of Zoology
- Chinese Academy of Sciences
- Beijing 100101
- China
| | - Song Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
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Borgström B, Huang X, Pošta M, Hegardt C, Oredsson S, Strand D. Synthetic modification of salinomycin: selective O-acylation and biological evaluation. Chem Commun (Camb) 2014; 49:9944-6. [PMID: 24037337 DOI: 10.1039/c3cc45983g] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Salinomycin has found renewed interest as an agent for prevention of cancer recurrence through selectively targeting cancer stem cells. Strategies for generation of improved salinomycin analogs by individual modification of its hydroxyl groups are presented. An evaluation of the dose-response effects of the resulting library on breast cancer cell lines shows that acylation of the C20 hydroxyl can be used to improve IC50 values down to one fifth that of salinomycin.
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Affiliation(s)
- Björn Borgström
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden.
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27
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Antoszczak M, Maj E, Stefańska J, Wietrzyk J, Janczak J, Brzezinski B, Huczyński A. Synthesis, antiproliferative and antibacterial activity of new amides of salinomycin. Bioorg Med Chem Lett 2014; 24:1724-9. [DOI: 10.1016/j.bmcl.2014.02.042] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 02/13/2014] [Accepted: 02/15/2014] [Indexed: 11/29/2022]
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28
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Antoszczak M, Popiel K, Stefańska J, Wietrzyk J, Maj E, Janczak J, Michalska G, Brzezinski B, Huczyński A. Synthesis, cytotoxicity and antibacterial activity of new esters of polyether antibiotic - salinomycin. Eur J Med Chem 2014; 76:435-44. [PMID: 24602789 DOI: 10.1016/j.ejmech.2014.02.031] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 02/10/2014] [Accepted: 02/13/2014] [Indexed: 01/20/2023]
Abstract
A series of 12 novel ester derivatives of naturally occurring polyether antibiotic - salinomycin were synthesized, characterised by spectroscopic method and evaluated for their in vitro antibacterial activity and cytotoxicity. The new esters were demonstrated to form complexes with monovalent and divalent metal cation of 1:1 stoichiometry in contrast to the salinomycin which forms only complexes with monovalent cations. All the obtained compounds show potent antiproliferative activity against human cancer cell lines and a good selectivity index for cancer versus mammalian cells. Additionally, 3 compounds showed higher antiproliferative activity against the drug-resistant cancer cells and lower toxicity towards normal cells than those of unmodified salinomycin and standard anticancer drugs such as cisplatin and doxorubicin. Some of the synthesized compounds showed good inhibitory activity against Staphylococcus strains and clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA) and Staphylococcus epidermidis (MRSE). These studies show that salinomycin esters are interesting scaffolds for the development of novel anticancer and Gram-positive antibacterial agents.
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Affiliation(s)
- Michał Antoszczak
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Katarzyna Popiel
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Joanna Stefańska
- Medical University of Warsaw, Department of Pharmaceutical Microbiology, Oczki 3, 02-007 Warsaw, Poland
| | - Joanna Wietrzyk
- Ludwik Hierszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Ewa Maj
- Ludwik Hierszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Jan Janczak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PO Box 1410, 50-950 Wrocław, Poland
| | - Greta Michalska
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Bogumil Brzezinski
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Adam Huczyński
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland.
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Matsumori N. Structure and Interaction in Lipid Bilayers Analyzed Using Bicelles. J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Momekova D, Momekov G, Ivanova J, Pantcheva I, Drakalska E, Stoyanov N, Guenova M, Michova A, Balashev K, Arpadjan S, Mitewa M, Rangelov S, Lambov N. Sterically stabilized liposomes as a platform for salinomycin metal coordination compounds: physicochemical characterization and in vitro evaluation. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50033-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Huczyński A, Janczak J, Antoszczak M, Wietrzyk J, Maj E, Brzezinski B. Antiproliferative activity of salinomycin and its derivatives. Bioorg Med Chem Lett 2012; 22:7146-50. [PMID: 23079523 DOI: 10.1016/j.bmcl.2012.09.068] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 09/17/2012] [Accepted: 09/18/2012] [Indexed: 10/27/2022]
Abstract
Antiproliferative activity of seven amides and one benzotriazole ester derivative of salinomycin, a polyether ionophore antibiotic, with recently reported antibacterial activity, are herein described. Salinomycin and the majority of derivatives exhibit potent antiproliferative activity against the drug-resistant cancer cell lines. Moreover almost all derivatives show stronger activity against LoVo/DX cell line than that of unmodified salinomycin.
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Affiliation(s)
- Adam Huczyński
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan, Poland.
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Ramaswamy J, Prasher SO, Patel RM. Sorption and desorption of salinomycin sodium in clay, loamy sand, and sandy soils. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:5363-5369. [PMID: 21931945 DOI: 10.1007/s10661-011-2345-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2010] [Accepted: 08/30/2011] [Indexed: 05/31/2023]
Abstract
Salinomycin sodium (BIO-COX) is polyether ionophore, commonly used in the poultry industries for the prevention of coccidial infections and promotion of growth. Salinomycin sodium (SAL-Na) is very toxic, and may be fatal, if swallowed, inhaled, or absorbed through the skin than many other antibiotics, thus evaluating their fate in the soil environment is of importance. Sorption of SAL-Na was measured in clay, loamy sand, and sandy soil at different pH 4, 7, and 9, and desorption with phosphate buffer (pH 7) using batch equilibration technique. SAL-Na was sorbed by all the soils studied, the sorption of SAL-Na by the sandy soil increased as the pH decreased, while the sorption of salinomycin in clay and loamy sand soil increased as the pH increased. Desorption of salinomycin from the soil with phosphate buffer (pH 7) over the 24 h period was 80-95% of the amount added. The similar trend was observed in desorption with pH 4, 7 and at different concentrations and slight less desorption was observed in pH 9. When compared to clay and loamy sand soil, sandy soil was recorded maximum (95%) desorption.
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Affiliation(s)
- Jayashree Ramaswamy
- Department of Bioresource Engineering, MacDonald campus of McGill University, 21111, Lakeshore road, Sainte Anne de Bellevue, QC, H9X 3 V9, Canada.
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X-ray, FT-IR, NMR and PM5 structural studies and antibacterial activity of unexpectedly stable salinomycin–benzotriazole intermediate ester. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.05.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Huczyński A, Janczak J, Stefańska J, Antoszczak M, Brzezinski B. Synthesis and antimicrobial activity of amide derivatives of polyether antibiotic-salinomycin. Bioorg Med Chem Lett 2012; 22:4697-702. [PMID: 22721714 DOI: 10.1016/j.bmcl.2012.05.081] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 05/17/2012] [Accepted: 05/21/2012] [Indexed: 12/18/2022]
Abstract
For the first time a direct and practical approach to the synthesis of eight amide derivatives of polyether antibiotic-salinomycin is described. The structure of allyl amide (3a) has been determined using X-ray diffraction. Salinomycin and its amide derivatives have been screened for their in vitro antimicrobial activity against the typical gram-positive cocci, gram-negative rods and yeast-like organisms, as well as against a series of clinical isolates of methicillin-resistant Staphylococcus aureus and methicillin-sensitive S. aureus. Amides of salinomycin have been found to show a wide range of activities, from inactive at 256 μg/mL to active with MIC of 2 μg/mL, comparable with salinomycin. As a result, phenyl amide (3b) was found to be the most active salinomycin derivative against gram-positive bacteria, MRSA and MSSA.
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Affiliation(s)
- Adam Huczyński
- Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland.
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Ivanova J, Pantcheva IN, Mitewa M, Simova S, Tanabe M, Osakada K. Cd(II) and Pb(II) complexes of the polyether ionophorous antibiotic salinomycin. Chem Cent J 2011; 5:52. [PMID: 21906282 PMCID: PMC3184049 DOI: 10.1186/1752-153x-5-52] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 09/09/2011] [Indexed: 12/13/2022] Open
Abstract
Background The natural polyether ionophorous antibiotics are used for the treatment of coccidiosis in poultry and ruminants. They are effective agents against infections caused by Gram-positive microorganisms. On the other hand, it was found that some of these compounds selectively bind lead(II) ions in in vivo experiments, despite so far no Pb(II)-containing compounds of defined composition have been isolated and characterized. To assess the potential of polyether ionophores as possible antidotes in the agriculture, a detailed study on their in vitro complexation with toxic metal ions is required. In the present paper we report for the first time the preparation and the structure elucidation of salinomycin complexes with ions of cadmium(II) and lead(II). Results New metal(II) complexes of the polyether ionophorous antibiotic salinomycin with Cd(II) and Pb(II) ions were prepared and structurally characterized by IR, FAB-MS and NMR techniques. The spectroscopic information and elemental analysis data reveal that sodium salinomycin (SalNa) undergoes a reaction with heavy metal(II) ions to form [Cd(Sal)2(H2O)2] (1) and [Pb(Sal)(NO3)] (2), respectively. Abstraction of sodium ions from the cavity of the antibiotic is occurring during the complexation reaction. Salinomycin coordinates with cadmium(II) ions as a bidentate monoanionic ligand through the deprotonated carboxylic moiety and one of the hydroxyl groups to yield 1. Two salinomycin anions occupy the equatorial plane of the Cd(II) center, while two water molecules take the axial positions of the inner coordination sphere of the metal(II) cation. Complex 2 consists of monoanionic salinomycin acting in polydentate coordination mode in a molar ratio of 1: 1 to the metal ion with one nitrate ion for charge compensation. Conclusion The formation of the salinomycin heavy metal(II) complexes indicates a possible antidote activity of the ligand in case of chronic/acute intoxications likely to occur in the stock farming.
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Affiliation(s)
- Juliana Ivanova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad, G, Bontchev Str,, build, 9, 1113 Sofia, Bulgaria.
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Matsumori N, Murata M. 3D structures of membrane-associated small molecules as determined in isotropic bicelles. Nat Prod Rep 2010; 27:1480-92. [DOI: 10.1039/c0np00002g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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39
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Lunazzi L, Mazzanti A, Rafi S, Rao HSP. Chair to Boat Interconversion and Face to Face Interactions in Isomeric Aryl-Substituted Perhydrocyclopentaquinolizines. J Org Chem 2007; 73:678-88. [DOI: 10.1021/jo702172u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lodovico Lunazzi
- Department of Organic Chemistry “A. Mangini”, University of Bologna, Viale Risorgimento, 4 Bologna 40136, Italy, and Department of Chemistry, Pondicherry University, Puducherry 605014 India
| | - Andrea Mazzanti
- Department of Organic Chemistry “A. Mangini”, University of Bologna, Viale Risorgimento, 4 Bologna 40136, Italy, and Department of Chemistry, Pondicherry University, Puducherry 605014 India
| | - Shaik Rafi
- Department of Organic Chemistry “A. Mangini”, University of Bologna, Viale Risorgimento, 4 Bologna 40136, Italy, and Department of Chemistry, Pondicherry University, Puducherry 605014 India
| | - H. Surya Prakash Rao
- Department of Organic Chemistry “A. Mangini”, University of Bologna, Viale Risorgimento, 4 Bologna 40136, Italy, and Department of Chemistry, Pondicherry University, Puducherry 605014 India
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Matsumori N, Morooka A, Murata M. Conformation and Location of Membrane-Bound Salinomycin−Sodium Complex Deduced from NMR in Isotropic Bicelles. J Am Chem Soc 2007; 129:14989-95. [DOI: 10.1021/ja075024l] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nobuaki Matsumori
- Contribution from the Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Atsushi Morooka
- Contribution from the Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Michio Murata
- Contribution from the Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Miao XS, March RE, Metcalfe CD. Fragmentation study of salinomycin and monensin A antibiotics using electrospray quadrupole time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2003; 17:149-154. [PMID: 12512094 DOI: 10.1002/rcm.882] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The fragmentation pathways of two selected ionophore antibiotics, salinomycin and monensin A, were studied using electrospray (ES) orthogonal acceleration quadrupole time-of-flight mass spectrometry in positive-ion mode. The identity of fragment ions was determined by accurate-mass measurements. In ES mass spectra, ion signals of relatively high intensity were observed for [M+Na](+) and [M-H+2Na](+) for each antibiotic. Each of the ion species [M+Na](+) and [M-H+2Na](+) for salinomycin and [M-H+2Na](+) for monensin A were isolated in turn and subjected to fragmentation. In the fragmentation of [M+Na](+) and [M-H+2Na](+) from salinomycin, only Cbond;C single bond cleavage and dehydration were observed. Product ion mass spectra obtained from [M-H+2Na](+) of monensin A showed that ether ring opening, Cbond;C single bond cleavage and dehydration fragmentations had occurred. Fragment ions containing two sodium atoms were observed in the product ion mass spectrum of [M-H+2Na](+) from salinomycin, but not from monensin A. Both type A (containing the terminal carboxyl group) and type F (containing the terminal hydroxyl group) fragment ions were observed in the product ion mass spectra of sodium adduct ions of salinomycin and monensin A.
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Affiliation(s)
- Xiu-Sheng Miao
- Water Quality Centre, Trent University, Peterborough, ON K9J 7B8, Canada
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Riddell FG. Structure, conformation, and mechanism in the membrane transport of alkali metal ions by ionophoric antibiotics. Chirality 2002; 14:121-5. [PMID: 11835554 DOI: 10.1002/chir.10052] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Recent progress in studies of the mechanism of transport of alkali metal ions by ionophoric antibiotics and the structures of alkali metal salts of the ionophores monensin and narasin is reviewed. The structures obtained from 2D NMR experiments in solution provide considerable insights into the mechanisms of transport.
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Affiliation(s)
- Frank G Riddell
- School of Chemistry, The University of St Andrews, St Andrews, Scotland, UK.
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