1
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Serter Kocoglu S, Oy C, Secme M, Sunay FB. Investigation of the anticancer mechanism of monensin via apoptosis-related factors in SH-SY5Y neuroblastoma cells. Clin Transl Sci 2023; 16:1725-1735. [PMID: 37477356 PMCID: PMC10499413 DOI: 10.1111/cts.13593] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/22/2023] Open
Abstract
Monensin is an ionophore antibiotic that inhibits the growth of cancer cells. The aim of this study was to investigate the apoptosis-mediated anticarcinogenic effects of monensin in SH-SY5Y neuroblastoma cells. The effects of monensin on cell viability, invasion, migration, and colony formation were determined by XTT, matrigel-chamber, wound healing, and colony formation tests, respectively. The effects of monensin on apoptosis were determined by real-time polymerase chain reaction, TUNEL, Western blot, and Annexin V assay. We have shown that monensin suppresses neuroblastoma cell viability, invasion, migration, and colony formation. Moreover, we reported that monensin inhibits cell viability by triggering apoptosis of neuroblastoma cells. Monensin caused apoptosis by increasing caspase-3, 7, 8, and 9 expressions and decreasing Bax and Bcl-2 expressions in neuroblastoma cells. In Annexin V results, the rates of apoptotic cells were found to be 9.66 ± 0.01% (p < 0.001), 29.28 ± 0.88% (p < 0.01), and 62.55 ± 2.36% (p < 0.01) in the 8, 16, and 32 μM monensin groups, respectively. In TUNEL results, these values were, respectively; 35 ± 2% (p < 0.001), 34 ± 0.57% (p < 0.001), and 75 ± 2.51% (p < 0.001). Our results suggest that monensin may be a safe and effective therapeutic candidate for treating pediatric neuroblastoma.
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Affiliation(s)
- Sema Serter Kocoglu
- Department of Histology and EmbryologySchool of Medicine, Balikesir UniversityBalikesirTurkey
| | - Ceren Oy
- Department of Histology and EmbryologySchool of Medicine, Bursa Uludag UniversityBursaTurkey
| | - Mücahit Secme
- Department of Medical BiologySchool of Medicine, Ordu UniversityDenizliTurkey
| | - F. Bahar Sunay
- Department of Histology and EmbryologySchool of Medicine, Balikesir UniversityBalikesirTurkey
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2
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Tang L, Duan W, Zhang C, Shi Y, Tu W, Lei K, Zhang W, Wu S, Zhang J. Potent salinomycin C20-O-alkyl oxime derivative SAL-98 efficiently inhibits tumor growth and metastasis by affecting Wnt/β-catenin signal pathway. Biochem Pharmacol 2023:115666. [PMID: 37391086 DOI: 10.1016/j.bcp.2023.115666] [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: 03/14/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/02/2023]
Abstract
The dysregulation of Wnt/β-catenin signaling pathway is closely related to tumorigenesis, metastasis and cancer stem cell maintenance. Salinomycin is a polyether ionophore antibiotic that selectively eliminates cancer stem cells by inhibiting the Wnt/β-catenin signal pathway. Salinomycin selectively target cancer stem cells, but the toxicity limits its further use. In this study, we explore the anti-tumor mechanism of one most active salinomycin C20-O-alkyl oximederivative SAL-98 and found that SAL-98 exerts 10 times higher anti-tumor and anti-CSCs activities compared with salinomycin, which induces cell cycle arrest, ER stress and mitochondria dysfunction and inhibits Wnt/β-catenin signal pathway in vitro with high efficacy. Moreover, SAL-98 shows good anti-metastasis effect in vivo. In addition, SAL-98 demonstrates same anti-tumor activities as salinomycin with less 5 times concentration in vivo, the ER stress, autophagy and anti-CSCs effects were also confirmed in vivo. Mechanistically, SAL-98 inhibits the Wnt/β-catenin signaling pathway associated with CHOP expression induced by ER stress, the induced CHOP disrupts the β-catenin/TCF4 complex and represses the Wnt targeted genes. This study provides an alternative strategy for rational drug development to target Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Lei Tang
- Faculty of Life Science, Kunming University of Science and Technology, Kunming 650500, China; Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenfang Duan
- Medical School, Kunming University of Science and Technology, Kunming, 650500, 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
| | - Yulu Shi
- Medical School, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenlian Tu
- The First Hospital of Yunnan Province, the affiliated Hospital of Kunming University of Science and Technology, 650032, China
| | - Kangfan Lei
- 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
| | - 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.
| | - 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.
| | - Jihong Zhang
- Medical School, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Province Clinical Research Center for Hematologic Disease, Kunming, 650032, China.
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3
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Cholesterol-stabilized membrane-active nanopores with anticancer activities. Nat Commun 2022; 13:5985. [PMID: 36216956 PMCID: PMC9551035 DOI: 10.1038/s41467-022-33639-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/23/2022] [Indexed: 11/22/2022] Open
Abstract
Cholesterol-enhanced pore formation is one evolutionary means cholesterol-free bacterial cells utilize to specifically target cholesterol-rich eukaryotic cells, thus escaping the toxicity these membrane-lytic pores might have brought onto themselves. Here, we present a class of artificial cholesterol-dependent nanopores, manifesting nanopore formation sensitivity, up-regulated by cholesterol of up to 50 mol% (relative to the lipid molecules). The high modularity in the amphiphilic molecular backbone enables a facile tuning of pore size and consequently channel activity. Possessing a nano-sized cavity of ~ 1.6 nm in diameter, our most active channel Ch-C1 can transport nanometer-sized molecules as large as 5(6)-carboxyfluorescein and display potent anticancer activity (IC50 = 3.8 µM) toward human hepatocellular carcinomas, with high selectivity index values of 12.5 and >130 against normal human liver and kidney cells, respectively. Bacterial cells utilize cholesterol-enhanced pore formation to specifically target eukaryotic cells. Here, the authors present a class of bio-inspired, cholesterol-enhanced nanopores which display anticancer activities in vitro.
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4
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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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5
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Antoszczak M, Otto-Ślusarczyk D, Kordylas M, Struga M, Huczyński A. Synthesis of Lasalocid-Based Bioconjugates and Evaluation of Their Anticancer Activity. ACS OMEGA 2022; 7:1943-1955. [PMID: 35071884 PMCID: PMC8771711 DOI: 10.1021/acsomega.1c05434] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/28/2021] [Indexed: 06/06/2023]
Abstract
Using rationally designed bioconjugates is an attractive strategy to develop novel anticancer drugs with enhanced therapeutic potential and minimal side effects compared to the native structures. With respect to the promising activity of lasalocid (LAS) toward various cancer cells, this polyether ionophore seems to be an ideal candidate for bioconjugation. Herein, we describe the synthetic access to a cohort of nine conjugated products of LAS, in which the ionophore biomolecule was successfully combined via covalent bonds with selected anticancer therapeutics or other anticancer active components. The in vitro screening of a series of cancer cell lines allowed us to identify three products with improved anticancer activity profiles compared to those of the starting materials. The results indicate that human prostate cancer cells (PC3) and human primary colon cancer cells (SW480) were essentially more sensitive to exposure to LAS derivatives than human keratinocytes (HaCaT). Furthermore, the selected products were stronger inducers of late apoptosis and/or necrosis in PC3 and SW480 cancer cells, when compared to the metastatic variant of colon cancer cells (SW620). To establish the anticancer mechanism of LAS-based bioconjugates, the levels of interleukin 6 (IL-6) and reactive oxygen species (ROS) were measured; the tested compounds significantly reduced the release of IL-6, while the level of ROS was significantly higher in all the cell lines studied.
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Affiliation(s)
- Michał Antoszczak
- Department
of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Dagmara Otto-Ślusarczyk
- Chair
and Department of Biochemistry, Faculty of Medicine, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Marta Kordylas
- Department
of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Marta Struga
- Chair
and Department of Biochemistry, Faculty of Medicine, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Adam Huczyński
- Department
of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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6
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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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7
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Liver Protection Mechanism and Absorption Promotion Technology of Silybin Based on Intelligent Medical Analysis. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:9968016. [PMID: 34285784 PMCID: PMC8275410 DOI: 10.1155/2021/9968016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/03/2021] [Accepted: 06/21/2021] [Indexed: 11/18/2022]
Abstract
With the continuous popularization of smart medicine, the protective effect of silibinin in the liver has attracted much attention. This study mainly explores the liver protection mechanism and absorption promotion technology of silybin based on intelligent medical analysis. Refining of silibinin: accurately weigh 1.0 g of silibinin in a three-necked flask; gradually add 50 mL of anhydrous methanol, reflux and filter the precipitated solid; and weigh it after drying. ICR male mice were taken as experimental subjects and randomly divided into groups of 10 each. The mice in the normal group and the model group were given intragastrically with 0.5% CMC-Na solution; the mice in the silibinin group were given intragastrically with SB/CMC-Na suspension; the mice in the remaining groups were given low, medium, and high-dose suspensions to their stomachs, and silibinin 23 acylate/CMC-Na suspension was administered at a dose of 10 mL/kg for 7 consecutive days. After that, the mice were fasted for 12 hours. After 6 hours of fasting (18 hours after modeling), the blood cells from their orbits were taken, placed in a 37°C water bath for 30 minutes, and centrifuged at 4000 rpm for 10 minutes, and then the serum was taken; the activity equivalent of AST and ALT in serum was measured; serum determination Medium AST and ALT vitality. The mice were killed by decapitation, fresh liver tissue was immediately collected, and part of it was frozen in liquid nitrogen for the RT-PCR test. The hepatocyte expansion and death were observed using a transmission electron microscope, and the oncosis index (OI) was calculated. Another part of the liver tissue was fixed in 4% paraformaldehyde solution, embedded in paraffin, dehydrated, and sliced at 4 μm. Some sections were stained with conventional HE, and the pathological changes of liver cells were observed under light microscope; some sections were subjected to immunohistochemistry. Only one mouse died when 240 mg/kg of silibinin was given 10 minutes after the model was modeled. However, when 240 mg/kg silibinin was given to the mice 20 minutes after modeling, the mortality rate of the mice rose to 50%, and the therapeutic effect was significantly weakened. This research is helpful to advance the research of silybin in liver protection.
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8
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Sulik M, Maj E, Wietrzyk J, Huczyński A, Antoszczak M. Synthesis and Anticancer Activity of Dimeric Polyether Ionophores. Biomolecules 2020; 10:biom10071039. [PMID: 32664671 PMCID: PMC7408349 DOI: 10.3390/biom10071039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 12/13/2022] Open
Abstract
Polyether ionophores represent a group of natural lipid-soluble biomolecules with a broad spectrum of bioactivity, ranging from antibacterial to anticancer activity. Three seem to be particularly interesting in this context, namely lasalocid acid, monensin, and salinomycin, as they are able to selectively target cancer cells of various origin including cancer stem cells. Due to their potent biological activity and abundant availability, some research groups around the world have successfully followed semi-synthetic approaches to generate original derivatives of ionophores. However, a definitely less explored avenue is the synthesis and functional evaluation of their multivalent structures. Thus, in this paper, we describe the synthetic access to a series of original homo- and heterodimers of polyether ionophores, in which (i) two salinomycin molecules are joined through triazole linkers, or (ii) salinomycin is combined with lasalocid acid, monensin, or betulinic acid partners to form 'mixed' dimeric structures. Of note, all 11 products were tested in vitro for their antiproliferative activity against a panel of six cancer cell lines including the doxorubicin resistant colon adenocarcinoma LoVo/DX cell line; five dimers (14-15, 17-18 and 22) were identified to be more potent than the reference agents (i.e., both parent compound(s) and commonly used cytostatic drugs) in selective targeting of various types of cancer. Dimers 16 and 21 were also found to effectively overcome the resistance of the LoVo/DX cancer cell line.
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Affiliation(s)
- Michał Sulik
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61–614 Poznań, Poland; (M.S.); (A.H.)
| | - Ewa Maj
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53–114 Wrocław, Poland; (E.M.); (J.W.)
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53–114 Wrocław, Poland; (E.M.); (J.W.)
| | - Adam Huczyński
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61–614 Poznań, Poland; (M.S.); (A.H.)
| | - Michał Antoszczak
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61–614 Poznań, Poland; (M.S.); (A.H.)
- Correspondence: ; Tel.: +48-61-829-1786
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9
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Klejborowska G, Jędrzejczyk M, Stępczyńska N, Maj E, Wietrzyk J, Huczyński A. Antiproliferative activity of ester derivatives of monensin A at the C-1 and C-26 positions. Chem Biol Drug Des 2019; 94:1859-1864. [PMID: 31260603 DOI: 10.1111/cbdd.13581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/17/2019] [Accepted: 06/23/2019] [Indexed: 01/27/2023]
Abstract
Monensin A (MON) is a polyether ionophore antibiotic, which shows a wide spectrum of biological activity, including anticancer activity. A series of structurally diverse monensin esters including its C-1 esters (1-9), C-26-O-acetylated derivatives (10-15), and lactone (16) was synthesized and for the first time evaluated for their antiproliferative activity against four human cancer cell lines with different drug-sensitivity level. All of the MON derivatives exhibited in vitro antiproliferative activity against cancer cells at micromolar concentrations. The majority of the compounds was able to overcome the drug resistance of LoVo/DX and MES-SA/DX5 cell lines. The most active compounds proved to be MON C-26-O-acetylated derivatives (10-15) which exhibited very good resistance index and high selectivity index.
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Affiliation(s)
- Greta Klejborowska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Marta Jędrzejczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Natalia Stępczyńska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Ewa Maj
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Adam Huczyński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
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10
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Antoszczak M, Huczyński A. Salinomycin and its derivatives - A new class of multiple-targeted "magic bullets". Eur J Med Chem 2019; 176:208-227. [PMID: 31103901 DOI: 10.1016/j.ejmech.2019.05.031] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 12/23/2022]
Abstract
The history of drug development clearly shows the scale of painstaking effort leading to a finished product - a highly biologically active agent that would be at the same time no or little toxic to human organism. Moreover, the aim of modern drug discovery can move from "one-molecule one-target" concept to more promising "one-molecule multiple-targets" one, particularly in the context of effective fight against cancer and other complex diseases. Gratifyingly, natural compounds are excellent source of potential drug leads. One of such promising naturally-occurring drug candidates is a polyether ionophore - salinomycin (SAL). This compound should be identified as multi-target agent for two reasons. Firstly, SAL combines a broad spectrum of bioactivity, including antibacterial, antifungal, antiviral, antiparasitic and anticancer activity, with high selectivity of action, proving its significant therapeutic potential. Secondly, the multimodal mechanism of action of SAL has been shown to be related to its interactions with multiple molecular targets and signalling pathways that are synergistic for achieving a therapeutic anticancer effect. On the other hand, according to the Paul Ehrlich's "magic bullet" concept, invariably inspiring the scientists working on design of novel target-selective molecules, a very interesting direction of research is rational chemical modification of SAL. Importantly, many of SAL derivatives have been found to be more promising as chemotherapeutics than the native structure. This concise review article is focused both on the possible role of SAL and its selected analogues in future antimicrobial and/or cancer therapy, and on the potential use of SAL as a new class of multiple-targeted "magic bullet" because of its multimodal mechanism of action.
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Affiliation(s)
- Michał Antoszczak
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61‒614, Poznań, Poland
| | - Adam Huczyński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61‒614, Poznań, Poland.
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11
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A comprehensive review of salinomycin derivatives as potent anticancer and anti-CSCs agents. Eur J Med Chem 2019; 166:48-64. [DOI: 10.1016/j.ejmech.2019.01.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/02/2019] [Accepted: 01/14/2019] [Indexed: 02/08/2023]
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12
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Versini A, Saier L, Sindikubwabo F, Müller S, Cañeque T, Rodriguez R. Chemical biology of salinomycin. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Klejborowska G, Maj E, Wietrzyk J, Stefańska J, Huczyński A. One-pot synthesis and antiproliferative activity of novel double-modified derivatives of the polyether ionophore monensin A. Chem Biol Drug Des 2018; 92:1537-1546. [PMID: 29722203 DOI: 10.1111/cbdd.13320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/08/2018] [Accepted: 04/16/2018] [Indexed: 11/27/2022]
Abstract
Monensin A (MON) is a polyether ionophore antibiotic, which shows a wide spectrum of biological activity. New MON derivatives such as double-modified ester-carbonates and double-modified amide-carbonates were obtained by a new and efficient one-pot synthesis with triphosgene as the activating reagent and the respective alcohol or amine. All new derivatives were tested for their antiproliferative activity against two drug-sensitive (MES-SA, LoVo) and two drug-resistant (MES-SA/DX5, LoVo/DX) cancer cell lines, and were also studied for their antimicrobial activity against different Staphylococcus aureus and Staphylococcus epidermidis bacterial strains. For the first time, the activity of MON and its derivatives against MES-SA and MES-SA/DX5 were evaluated.
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Affiliation(s)
| | - Ewa Maj
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Joanna Stefańska
- Department of Pharmaceutical Microbiology, Medical University of Warsaw, Warsaw, Poland
| | - Adam Huczyński
- Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
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Hernández ÁP, Díez P, García PA, Miguel del Corral JM, Pérez-Andrés M, Díez D, San Feliciano A, Fuentes M, Castro MÁ. New Hybrids Derived from Podophyllic Aldehyde and Diterpenylhydroquinones with Selectivity toward Osteosarcoma Cells. ACS Med Chem Lett 2018; 9:328-333. [PMID: 29670695 DOI: 10.1021/acsmedchemlett.7b00493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/08/2018] [Indexed: 11/28/2022] Open
Abstract
A new family of molecular hybrids, between cyclolignans related to podophyllic aldehyde and several diterpenylnaphthohydroquinones (DNHQ), was prepared and its biological activity evaluated in several human solid tumor cell lines, which are representative of the most prevalent solid tumors in the Western world. Both cyclolignan and quinone fragments were linked through aliphatic or aromatic spacers. The new hybrid family was evaluated for its cytotoxicity, and it was found that the hybrids were several times more potent against the osteosarcoma cell line MG-63 than against MCF-7 and HT-29 cell lines. The presence of an aromatic ring in the linker gave the most potent and selective agent, improving the cytotoxicity of the parent compounds. Cell cycle studies demonstrated that this hybrid induces a strong and rapid apoptotic effect and arrests cells at the G2/M phase of the cell cycle, in the same way that the parent compound podophyllic aldehyde does.
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Affiliation(s)
- Ángela P. Hernández
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, CIETUS/IBSAL, University of Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, University of Salamanca, 37008 Salamanca, Spain
| | - Paula Díez
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
- Proteomics Unit. Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - Pablo A. García
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, CIETUS/IBSAL, University of Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - José M. Miguel del Corral
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, CIETUS/IBSAL, University of Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - Martín Pérez-Andrés
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - David Díez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, University of Salamanca, 37008 Salamanca, Spain
| | - Arturo San Feliciano
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, CIETUS/IBSAL, University of Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - Manuel Fuentes
- Department of Medicine and General Cytometry Service-Nucleus, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
- Proteomics Unit. Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain
| | - M Ángeles Castro
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, CIETUS/IBSAL, University of Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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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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Antoszczak M, Maj E, Borgström B, Oredsson S, Huczyński A, Wietrzyk J, Strand D. Bivalent polyether ionophores: Synthesis and biological evaluation of C 2 -symmetric salinomycin dimers. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Synthesis and biological activity of salinomycin-hydroxamic acid conjugates. Bioorg Med Chem Lett 2017; 27:1624-1626. [DOI: 10.1016/j.bmcl.2017.01.080] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/23/2016] [Accepted: 01/26/2017] [Indexed: 12/16/2022]
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19
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Huang M, Deng Z, Tian J, Liu T. Synthesis and biological evaluation of salinomycin triazole analogues as anticancer agents. Eur J Med Chem 2017; 127:900-908. [DOI: 10.1016/j.ejmech.2016.10.067] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/24/2016] [Accepted: 10/31/2016] [Indexed: 01/06/2023]
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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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21
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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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Yang R, Tavares MT, Teixeira SF, Azevedo RA, C Pietro D, Fernandes TB, Ferreira AK, Trossini GHG, Barbuto JAM, Parise-Filho R. Toward chelerythrine optimization: Analogues designed by molecular simplification exhibit selective growth inhibition in non-small-cell lung cancer cells. Bioorg Med Chem 2016; 24:4600-4610. [PMID: 27561984 DOI: 10.1016/j.bmc.2016.07.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 07/26/2016] [Accepted: 07/28/2016] [Indexed: 01/30/2023]
Abstract
A series of novel chelerythrine analogues was designed and synthesized. Antitumor activity was evaluated against A549, NCI-H1299, NCI-H292, and NCI-H460 non-small-cell lung cancer (NSCLC) cell lines in vitro. The selectivity of the most active analogues and chelerythrine was also evaluated, and we compared their cytotoxicity in NSCLC cells and non-tumorigenic cell lines, including human umbilical vein endothelial cells (HUVECs) and LL24 human lung fibroblasts. In silico studies were performed to establish structure-activity relationships between chelerythrine and the analogues. The results showed that analogue compound 3f induced significant dose-dependent G0/G1 cell cycle arrest in A549 and NCI-H1299 cells. Theoretical studies indicated that the molecular arrangement and electron characteristics of compound 3f were closely related to the profile of chelerythrine, supporting its activity. The present study presents a new and simplified chelerythrinoid scaffold with enhanced selectivity against NSCLC tumor cells for further optimization.
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Affiliation(s)
- Rosania Yang
- Laboratory of Design and Synthesis of Bioactive Substances (LAPESSB), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil
| | - Maurício T Tavares
- Laboratory of Design and Synthesis of Bioactive Substances (LAPESSB), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil
| | - Sarah F Teixeira
- Laboratory of Tumor Immunology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1730, São Paulo, SP 05508-900, Brazil
| | - Ricardo A Azevedo
- Laboratory of Tumor Immunology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1730, São Paulo, SP 05508-900, Brazil
| | - Diego C Pietro
- Laboratory of Design and Synthesis of Bioactive Substances (LAPESSB), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil
| | - Thais B Fernandes
- Laboratory of Design and Synthesis of Bioactive Substances (LAPESSB), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil
| | - Adilson K Ferreira
- Laboratory of Tumor Immunology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1730, São Paulo, SP 05508-900, Brazil
| | - Gustavo H G Trossini
- Laboratory of Experimental and Computational Integrated Techniques (LITEC), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil
| | - José A M Barbuto
- Laboratory of Tumor Immunology, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1730, São Paulo, SP 05508-900, Brazil; Cell and Molecular Therapy Center NUCEL/NETCEM, Faculty of Medicine, University of São Paulo, Rua Pangaré, São Paulo, SP 05360-120, Brazil
| | - Roberto Parise-Filho
- Laboratory of Design and Synthesis of Bioactive Substances (LAPESSB), Department of Pharmacy, Faculty of Pharmaceutical Science, University of São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 5508-000, Brazil.
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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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24
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Antoszczak M, Sobusiak M, Maj E, Wietrzyk J, Huczyński A. Synthesis and antiproliferative activity of new bioconjugates of Salinomycin with amino acid esters. Bioorg Med Chem Lett 2015; 25:3511-4. [DOI: 10.1016/j.bmcl.2015.06.086] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 10/23/2022]
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