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Awaji AA, Alhamdi HW, Alshehri KM, Alfaifi MY, Shati AA, Elbehairi SEI, Radwan NAF, Hafez HS, Elshaarawy RFM, Welson M. Bio-molecular Fe(III) and Zn(II) complexes stimulate the interplay between PI3K/AKT1/EGFR inhibition and induce autophagy and apoptosis in epidermal skin cell cancer. J Inorg Biochem 2024; 262:112720. [PMID: 39243420 DOI: 10.1016/j.jinorgbio.2024.112720] [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: 06/29/2024] [Revised: 08/20/2024] [Accepted: 08/31/2024] [Indexed: 09/09/2024]
Abstract
This study investigated the effectiveness and safety of a hybrid thiosemicarbazone ligand (HL) and its metal complexes (MnII-L, FeIII-L, NiII-HL, and ZnII-HL) against epidermoid carcinoma (A-431). The results indicated that FeIII-L is the most effective, with a high selectivity index of 8.01 and an IC50 of 17.49 ± 2.12 μM for FeIII-L. The study also revealed that the synthesized complexes effectively inhibited gene expression of the Phosphoinositide 3-kinases (PI3K), alpha serine/threonine-protein kinase (AKT1), epidermal growth factor receptor (EGFR2) axis mechanism (P < 0.0001). Additionally, these complexes trigger a chain of events that include the inhibition of proliferating cell nuclear antigen (PCNA), transforming growth factor β1 (TGF β1), and topoisomerase II, and leading to a decrease in epidermoid cell proliferation. Furthermore, the inhibitory activity also resulted in the upregulation of caspases 3 and 9, indicating the acceleration of apoptotic markers, and the down regulation of miRNA221, suggesting a decrease in epidermoid proliferation. Molecular modeling of FeIII-L revealed that it had the best binding energy -8.02 kcal/mol and interacted with five hydrophobic π-interactions with Val270, Gln79, Leu210, and Trp80 against AKT1. Furthermore, the binding orientation of FeIII-L with Topoisomerase II was found to be the most stable, with a binding energy -8.25 kcal/mol. This stability was attributed to the presence of five hydrophobic π-interactions with His759, Guanin13, Cytosin8, and Ala465, and numerous ionic interactions, which were more favorable than those of doxorubicin and etoposide for new regimens of chemotherapeutic activities against skin cancer.
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Affiliation(s)
- Aeshah A Awaji
- Department of Biology, Faculty of Science, University College of Taymaa, University of Tabuk, Tabuk 71491, Saudi Arabia.
| | - Heba W Alhamdi
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | | | - Mohammad Y Alfaifi
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia; Tissue Culture and Cancer Biology Research Laboratory, King Khalid University, Abha 9004, Saudi Arabia.
| | - Ali A Shati
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia; Tissue Culture and Cancer Biology Research Laboratory, King Khalid University, Abha 9004, Saudi Arabia.
| | - Serag Eldin I Elbehairi
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia; Tissue Culture and Cancer Biology Research Laboratory, King Khalid University, Abha 9004, Saudi Arabia; Cell Culture Lab, Egyptian Organization for Biological Products and Vaccines (VACSERA Holding Company), 51 Wezaret El-Zeraa St., Agouza, Giza, Egypt.
| | - Nancy A-F Radwan
- Zoology Department, Faculty of Science, Arish University, 45511 El Arish, Egypt.
| | - Hani S Hafez
- Zoology Department, Faculty of Science, Suez University 43533, Suez, Egypt.
| | - Reda F M Elshaarawy
- Department of Chemistry, Faculty of Science, Suez University, 43533 Suez, Egypt; Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf, Düsseldorf, Germany.
| | - Mary Welson
- Zoology Department, Faculty of Science, Suez University 43533, Suez, Egypt
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Zheng Y, An H, Qi J, Li J. Recent progress in thiocarbazone metal complexes for cancer therapy via mitochondrial signalling pathway. Front Chem 2024; 12:1424022. [PMID: 38873408 PMCID: PMC11169589 DOI: 10.3389/fchem.2024.1424022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 05/15/2024] [Indexed: 06/15/2024] Open
Abstract
Mitochondria are the energy factories of cells and are important targets for the development of novel tumour treatment strategies owing to their involvement in processes such as apoptosis, oxidative stress, and metabolic programming. Thiosemicarbazone metal complexes target mitochondria and reduce mitochondrial membrane potential. The breakdown of mitochondrial membrane potential is a key event in the early stage of apoptosis, which releases cytochrome C and other pro-apoptotic factors, activates the intracellular apoptotic enzyme cascade, and eventually causes irreversible apoptosis of tumour cells. Thiosemicarbazone metal complexes targeting the mitochondria have recently emerged as potential antitumour agents; therefore, this review describes the structural diversity of thiosemicarbazone metal [Fe(III), Cu(II), Ni(II), Zn(II), Ga(III), Pb(II), Au(III), and Ir(III)] complexes and explores their anti-tumour mechanisms that target mitochondrial pathways.
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Affiliation(s)
- Yunyun Zheng
- Medical School of Pingdingshan University, Pingdingshan, China
| | - Hangyi An
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou, China
| | - Jinxu Qi
- Medical School of Pingdingshan University, Pingdingshan, China
| | - Jiaming Li
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou, China
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Jiménez-Pérez A, Fernández-Fariña S, Pedrido R, García-Tojal J. Desulfurization of thiosemicarbazones: the role of metal ions and biological implications. J Biol Inorg Chem 2024; 29:3-31. [PMID: 38148423 DOI: 10.1007/s00775-023-02037-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/26/2023] [Indexed: 12/28/2023]
Abstract
Thiosemicarbazones are biologically active substances whose structural formula is formed by an azomethine, an hydrazine, and a thioamide fragments, to generate a R2C=N-NR-C(=S)-NR2 backbone. These compounds often act as ligands to generate highly stable metal-organic complexes. In certain experimental conditions, however, thiosemicarbazones undergo reactions leading to the cleavage of the chain. Sometimes, the breakage involves desulfurization processes. The present work summarizes the different chemical factors that influence the desulfurization reactions of thiosemicarbazones, such as pH, the presence of oxidant reactants or the establishment of redox processes as those electrochemically induced, the effects of the solvent, the temperature, and the electromagnetic radiation. Many of these reactions require coordination of thiosemicarbazones to metal ions, even those present in the intracellular environment. The nature of the products generated in these reactions, their detection in vivo and in vitro, together with the relevance for the biological activity of these compounds, mainly as antineoplastic agents, is discussed.
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Affiliation(s)
- Alondra Jiménez-Pérez
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001, Burgos, Spain
| | - Sandra Fernández-Fariña
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - Javier García-Tojal
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001, Burgos, Spain.
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4
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Wang X, Zhu M, Li S, Xu G, Zhang Z, Yang F. Novel mono-, bi-, tri- and tetra-nuclear copper complexes that inhibit tumor growth through apoptosis and anti-angiogenesis. J Inorg Biochem 2024; 250:112403. [PMID: 37866112 DOI: 10.1016/j.jinorgbio.2023.112403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/08/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
To develop the next-generation metal agents for efficiently inhibiting tumor growth, a series of novel mononuclear, binuclear and trinuclear copper (Cu) thiophene-2-formaldehyde thiosemicarbazone complexes and a tetranuclear Cu 1,2,4-triazole-derived complex have been synthesized and their structure-activity relationships have been studied. The trinucleated Cu complex showed the strongest inhibitory activity against T24 cells among all the Cu complexes. Its antitumor effect in vivo was superior to that of cisplatin, with reduced side effects. Further studies on the antitumor mechanism have showed that Cu complexes not only induced apoptosis of cancer cells but also inhibited tumor angiogenesis by inhibiting the migration and invasion of vascular endothelial cells, blocking the cell cycle in the G1 phase, and inducing autophagy.
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Affiliation(s)
- Xiaojun Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China
| | - Minghui Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China
| | - Shanhe Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China
| | - Gang Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China
| | - Zhenlei Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China.
| | - Feng Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, PR China.
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Herrero JM, Fabra D, Matesanz AI, Hernández C, Sánchez-Pérez I, Quiroga AG. Dithiobiureas Palladium(II) complexes' studies: From their synthesis to their biological action. J Inorg Biochem 2023; 246:112261. [PMID: 37271620 DOI: 10.1016/j.jinorgbio.2023.112261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/09/2023] [Accepted: 05/18/2023] [Indexed: 06/06/2023]
Abstract
Dithiobiureas coordination chemistry towards palladium (II) ions and their possible application is presented and discussed. 1,6-(4-Methoxyphenyl)-2,5-dithiobiurea and 1,6-(4-chlorophenyl)-2,5-dithiobiurea afford two Pd(II) complexes with the general formula [Pd2(H2L)Cl2(PPh3)2]. The metal ion forms one chelate ring with the dithiobiurea, and binds to a triphenylphosphine and an additional leaving group cisplatin like. One of the complexes (1) is endowed not only with stability in DMSO and aqua solutions containing a biological buffer but also with cytotoxicity versus gastric cancer cell lines. Complex 1 does not interact covalently to DNA models, neither activates p53 or Checkpoint Kinase 1 key proteins for DNA damage response. Thus, we propose that complex 1 exerts its action by activating Mitogen-Activated Protein Kinases [p38, Extracellular signal-regulated kinases (ERKs), c-Jun N-terminal kinases (JNKs)] as cell death inductors.
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Affiliation(s)
- Jorge M Herrero
- Departamento de Bioquímica, Facultad de Medicina and Instituto de Investigaciones Biomédicas Albert Sols, Universidad Autónoma de Madrid, 28029 Madrid, Spain; Cancer Stem Cell and Fibroinflammatory Microenvironment Group, Chronic Diseases and Cancer Area 3 -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - David Fabra
- Departamento de Química Inorgánica, Facultad de Ciencias and IadChem, Calle Francisco Tomas y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Ana I Matesanz
- Departamento de Química Inorgánica, Facultad de Ciencias and IadChem, Calle Francisco Tomas y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Carolina Hernández
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias del Medio Ambiente, Avd. Carlos III s/n, Universidad de Castilla-La Mancha, 45071 Toledo, Spain
| | - Isabel Sánchez-Pérez
- Departamento de Bioquímica, Facultad de Medicina and Instituto de Investigaciones Biomédicas Albert Sols, Universidad Autónoma de Madrid, 28029 Madrid, Spain; Cancer Stem Cell and Fibroinflammatory Microenvironment Group, Chronic Diseases and Cancer Area 3 -Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
| | - Adoracion G Quiroga
- Departamento de Química Inorgánica, Facultad de Ciencias and IadChem, Calle Francisco Tomas y Valiente 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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6
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Jiang X, Fielding LA, Davis H, Carroll W, Lisic EC, Deweese JE. Inhibition of Topoisomerases by Metal Thiosemicarbazone Complexes. Int J Mol Sci 2023; 24:12010. [PMID: 37569386 PMCID: PMC10419228 DOI: 10.3390/ijms241512010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Topoisomerases, common targets for anti-cancer therapeutics, are crucial enzymes for DNA replication, transcription, and many other aspects of DNA metabolism. The potential anti-cancer effects of thiosemicarbazones (TSC) and metal-TSC complexes have been demonstrated to target several biological processes, including DNA metabolism. Human topoisomerases were discovered among the molecular targets for TSCs, and metal-chelated TSCs specifically displayed significant inhibition of topoisomerase II. The processes by which metal-TSCs or TSCs inhibit topoisomerases are still being studied. In this brief review, we summarize the TSCs and metal-TSCs that inhibit various types of human topoisomerases, and we note some of the key unanswered questions regarding this interesting class of diverse compounds.
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Affiliation(s)
- Xiaohua Jiang
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA
| | - Lauren A. Fielding
- Department of Biological, Physical and Human Sciences, Freed Hardeman University, Henderson, TN 38340, USA
| | - Hunter Davis
- Department of Chemistry, Tennessee Tech University, Cookeville, TN 38505, USA
| | - William Carroll
- Department of Chemistry, Tennessee Tech University, Cookeville, TN 38505, USA
| | - Edward C. Lisic
- Department of Chemistry, Tennessee Tech University, Cookeville, TN 38505, USA
| | - Joseph E. Deweese
- Department of Biological, Physical and Human Sciences, Freed Hardeman University, Henderson, TN 38340, USA
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37240, USA
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7
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Montalbano S, Bisceglie F, Pelosi G, Lazzaretti M, Buschini A. Modulation of Transcription Profile Induced by Antiproliferative Thiosemicarbazone Metal Complexes in U937 Cancer Cells. Pharmaceutics 2023; 15:pharmaceutics15051325. [PMID: 37242567 DOI: 10.3390/pharmaceutics15051325] [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: 03/03/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Since the discovery of cisplatin, the search for metal-based compounds with therapeutic potential has been a challenge for the scientific community. In this landscape, thiosemicarbazones and their metal derivatives represent a good starting point for the development of anticancer agents with high selectivity and low toxicity. Here, we focused on the action mechanism of three metal thiosemicarbazones [Ni(tcitr)2], [Pt(tcitr)2], and [Cu(tcitr)2], derived from citronellal. The complexes were already synthesized, characterized, and screened for their antiproliferative activity against different cancer cells and for genotoxic/mutagenic potential. In this work, we deepened the understanding of their molecular action mechanism using an in vitro model of a leukemia cell line (U937) and an approach of transcriptional expression profile analysis. U937 cells showed a significant sensitivity to the tested molecules. To better understand DNA damage induced by our complexes, the modulation of a panel of genes involved in the DNA damage response pathway was evaluated. We analyzed whether our compounds affected cell cycle progression to determine a possible correlation between proliferation inhibition and cell cycle arrest. Our results demonstrate that metal complexes target different cellular processes and could be promising candidates in the design of antiproliferative thiosemicarbazones, although their overall molecular mechanism is still to be understood.
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Affiliation(s)
- Serena Montalbano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Franco Bisceglie
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
- COMT (Interdepartmental Centre for Molecular and Translational Oncology), University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
- COMT (Interdepartmental Centre for Molecular and Translational Oncology), University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Mirca Lazzaretti
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Annamaria Buschini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
- COMT (Interdepartmental Centre for Molecular and Translational Oncology), University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
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Zhang Z, Zhang J, Yang T, Li S, Xu G, Liang H, Yang F. Developing an Anticancer Platinum(II) Compound Based on the Uniqueness of Human Serum Albumin. J Med Chem 2023; 66:5669-5684. [PMID: 37071741 DOI: 10.1021/acs.jmedchem.3c00001] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
To develop the next-generation Pt drug with remarkable activity and low toxicity to maximally inhibit tumor growth, we optimized a Pt(II) thiosemicarbazone compound (C4) with remarkable cytotoxicity to SK-N-MC cells and then constructed a new human serum albumin-C4 (HSA-C4) complex delivery system. The in vivo results showed that C4 and the HSA-C4 complex have remarkable therapeutic efficiency and almost no toxicity; they induced apoptosis and inhibited tumor angiogenesis. This system showed potential as a practical Pt drug. This study could pave the way for developing next-generation dual-targeted Pt drugs and achieving their targeting therapy for cancer.
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Affiliation(s)
- Zhenlei Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Juzheng Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Tongfu Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Shanhe Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Gang Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Feng Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
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Cebotari D, Calancea S, Marrot J, Guillot R, Falaise C, Guérineau V, Touboul D, Haouas M, Gulea A, Floquet S. Tuning the nuclearity of [Mo 2O 2S 2] 2+-based assemblies by playing with the degree of flexibility of bis-thiosemicarbazone ligands. Dalton Trans 2023; 52:3059-3071. [PMID: 36779751 DOI: 10.1039/d2dt03760b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
[MoV2O2S2]2+-based thiosemicarbazone complexes appear as very promising molecules for biological applications due to the intrinsic properties of their components. This paper deals with the synthesis and characterization of six coordination complexes obtained by the reaction of [MoV2O2S2]2+ clusters with bis-thiosemicarbazone ligands that contain flexible or rigid spacers between the two thiosemicarbazone units. Interestingly, structural characterization by single-crystal X-ray diffraction, MALDI-TOF MS technique and NMR spectroscopy revealed that the nuclearity of the complex is controlled by the nature of the spacer between the thiosemicarbazone units. Binuclear complexes, namely [MoV2O2S2(L1-3)], are isolated with flexible spacers while tetranuclear complexes [(MoV2O2S2)2(L4-6)2] are formed when the bis-thiosemicarbazone ligands are built on rigid spacers.
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Affiliation(s)
- Diana Cebotari
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France. .,State University of Moldova, MD-2009 Chisinau, Republic of Moldova
| | - Sergiu Calancea
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France.
| | - Jerôme Marrot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France.
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, CNRS UMR 8182, Université Paris Saclay, 91405 Orsay Cedex, France
| | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France.
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France.
| | - Aurelian Gulea
- State University of Moldova, MD-2009 Chisinau, Republic of Moldova
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles, France.
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Emam SM, Bondock S, Aldaloa AA. Schiff Base Coordination Compounds Including Thiosemicarbazide Derivative and 4-Benzoyl-1, 3-Diphenyl-5-Pyrazolone: Synthesis, Structural Spectral Characterization and Biological Activity. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Fuior A, Cebotari D, Garbuz O, Calancea S, Gulea A, Floquet S. Biological properties of a new class of [Mo2O2S2]-based thiosemicarbazone coordination complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Bai XG, Zheng Y, Qi J. Advances in thiosemicarbazone metal complexes as anti-lung cancer agents. Front Pharmacol 2022; 13:1018951. [PMID: 36238553 PMCID: PMC9551402 DOI: 10.3389/fphar.2022.1018951] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/13/2022] [Indexed: 01/31/2023] Open
Abstract
The great success of cisplatin as a chemotherapeutic agent considerably increased research efforts in inorganic biochemistry to identify more metallic drugs having the potential of treating lung cancer. Metal coordination centres, which exhibit a wide range of coordination numbers and geometries, various oxidised and reduced states and the inherent ligand properties offer pharmaceutical chemists a plethora of drug structures. Owing to the presence of C=N and C=S bonds in a thiosemicarbazone Schiff base, N and S atoms in its hybrid orbital has lone pair of electrons, which can generate metal complexes with different stabilities with most metal elements under certain conditions. Such ligands and complexes play key roles in the treatment of anti-lung cancer. Research regarding metallic anti-lung cancer has advanced considerably, but there remain several challenges. In this review, we discuss the potential of thiosemicarbazone Schiff base complexes as anti-lung cancer drugs, their anti-cancer activities and the most likely action mechanisms involving the recent families of copper, nickel, platinum, ruthenium and other complexes.
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Affiliation(s)
| | | | - Jinxu Qi
- *Correspondence: Yunyun Zheng, ; Jinxu Qi,
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Pósa V, Stefanelli A, Nunes JHB, Hager S, Mathuber M, May NV, Berger W, Keppler BK, Kowol CR, Enyedy ÉA, Heffeter P. Thiosemicarbazone Derivatives Developed to Overcome COTI-2 Resistance. Cancers (Basel) 2022; 14:4455. [PMID: 36139615 PMCID: PMC9497102 DOI: 10.3390/cancers14184455] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
COTI-2 is currently being evaluated in a phase I clinical trial for the treatment of gynecological and other solid cancers. As a thiosemicarbazone, this compound contains an N,N,S-chelating moiety and is, therefore, expected to bind endogenous metal ions. However, besides zinc, the metal interaction properties of COTI-2 have not been investigated in detail so far. This is unexpected, as we have recently shown that COTI-2 forms stable ternary complexes with copper and glutathione, which renders this drug a substrate for the resistance efflux transporter ABCC1. Herein, the complex formation of COTI-2, two novel terminal N-disubstituted derivatives (COTI-NMe2 and COTI-NMeCy), and the non-substituted analogue (COTI-NH2) with iron, copper, and zinc ions was characterized in detail. Furthermore, their activities against drug-resistant cancer cells was investigated in comparison to COTI-2 and Triapine. These data revealed that, besides zinc, also iron and copper ions need to be considered to play a role in the mode of action and resistance development of these thiosemicarbazones. Moreover, we identified COTI-NMe2 as an interesting new drug candidate with improved anticancer activity and resistance profile.
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Affiliation(s)
- Vivien Pósa
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre and MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Alessia Stefanelli
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria
| | - Julia H. Bormio Nunes
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
- Inorganic Chemistry Department, Institute of Chemistry, University of Campinas—UNICAMP, Campinas 13083-970, SP, Brazil
| | - Sonja Hager
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria
- Research Cluster ‘‘Translational Cancer Therapy Research’’, 1090 Vienna, Austria
| | - Marlene Mathuber
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
| | - Nóra V. May
- Centre for Structural Science, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary
| | - Walter Berger
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria
- Research Cluster ‘‘Translational Cancer Therapy Research’’, 1090 Vienna, Austria
| | - Bernhard K. Keppler
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
- Research Cluster ‘‘Translational Cancer Therapy Research’’, 1090 Vienna, Austria
| | - Christian R. Kowol
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
- Research Cluster ‘‘Translational Cancer Therapy Research’’, 1090 Vienna, Austria
| | - Éva A. Enyedy
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre and MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Petra Heffeter
- Center for Cancer Research, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria
- Research Cluster ‘‘Translational Cancer Therapy Research’’, 1090 Vienna, Austria
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14
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Fuior A, Cebotari D, Haouas M, Marrot J, Espallargas GM, Guérineau V, Touboul D, Rusnac RV, Gulea A, Floquet S. Synthesis, Structures, and Solution Studies of a New Class of [Mo 2O 2S 2]-Based Thiosemicarbazone Coordination Complexes. ACS OMEGA 2022; 7:16547-16560. [PMID: 35601294 PMCID: PMC9118386 DOI: 10.1021/acsomega.2c00705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/01/2022] [Indexed: 06/01/2023]
Abstract
This paper deals with the synthesis, structural studies, and behavior in solution of unprecedented coordination complexes built by the association of a panel of 14 representative thiosemicarbazone ligands with the cluster [Mo2O2S2]2+. These complexes have been thoroughly characterized both in the solid state and in solution by XRD and by NMR, respectively. In particular, HMBC 1H{15N} and 1H DOSY NMR experiments bring important elements for understanding the complexes' behavior in solution. These studies demonstrate that playing on the nature and the position of various substituents on the ligands strongly influences the coordination modes of the ligands as well as the numbers of isomers in solution, mainly 2 products for the majority of complexes and up to 5 for some of them.
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Affiliation(s)
- Arcadie Fuior
- Institut
Lavoisier de Versailles, CNRS UMR 8180, Univ. Versailles Saint Quentin en Yvelines, Université Paris-Saclay, 45 av. des Etats-Unis, 78035 Cedex Versailles, France
- State
University of Moldova, Chişinău 2009, Republic of Moldova
| | - Diana Cebotari
- Institut
Lavoisier de Versailles, CNRS UMR 8180, Univ. Versailles Saint Quentin en Yvelines, Université Paris-Saclay, 45 av. des Etats-Unis, 78035 Cedex Versailles, France
- State
University of Moldova, Chişinău 2009, Republic of Moldova
| | - Mohamed Haouas
- Institut
Lavoisier de Versailles, CNRS UMR 8180, Univ. Versailles Saint Quentin en Yvelines, Université Paris-Saclay, 45 av. des Etats-Unis, 78035 Cedex Versailles, France
| | - Jérôme Marrot
- Institut
Lavoisier de Versailles, CNRS UMR 8180, Univ. Versailles Saint Quentin en Yvelines, Université Paris-Saclay, 45 av. des Etats-Unis, 78035 Cedex Versailles, France
| | | | - Vincent Guérineau
- Institut
de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Avenue de la Terrasse, 91198 Cedex Gif-sur-Yvette, France
| | - David Touboul
- Institut
de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Saclay, Avenue de la Terrasse, 91198 Cedex Gif-sur-Yvette, France
| | - Roman V. Rusnac
- State
University of Moldova, Chişinău 2009, Republic of Moldova
| | - Aurelian Gulea
- State
University of Moldova, Chişinău 2009, Republic of Moldova
| | - Sébastien Floquet
- Institut
Lavoisier de Versailles, CNRS UMR 8180, Univ. Versailles Saint Quentin en Yvelines, Université Paris-Saclay, 45 av. des Etats-Unis, 78035 Cedex Versailles, France
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15
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Conformational Properties of New Thiosemicarbazone and Thiocarbohydrazone Derivatives and Their Possible Targets. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082537. [PMID: 35458736 PMCID: PMC9028911 DOI: 10.3390/molecules27082537] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/23/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022]
Abstract
The structure assignment and conformational analysis of thiosemicarbazone KKI15 and thiocarbohydrazone KKI18 were performed through homonuclear and heteronuclear 2D Nuclear Magnetic Resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-HSQC, and 2D-HMBC) and quantum mechanics (QM) calculations using Functional Density Theory (DFT). After the structure identification of the compounds, various conformations of the two compounds were calculated using DFT. The two molecules showed the most energy-favorable values when their two double bonds adopted the E configuration. These configurations were compatible with the spatial correlations observed in the 2D-NOESY spectrum. In addition, due to the various isomers that occurred, the energy of the transition states from one isomer to another was calculated. Finally, molecular binding experiments were performed to detect potential targets for KKI15 and KKI18 derived from SwissAdme. In silico molecular binding experiments showed favorable binding energy values for all four enzymes studied. The strongest binding energy was observed in the enzyme butyrylcholinesterase. ADMET calculations using the preADMET and pKCSm software showed that the two molecules appear as possible drug leads.
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16
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Suliman RS, Alghamdi SS, Ali R, Rahman I, Alqahtani T, Frah IK, Aljatli DA, Huwaizi S, Algheribe S, Alehaideb Z, Islam I. Distinct Mechanisms of Cytotoxicity in Novel Nitrogenous Heterocycles: Future Directions for a New Anti-Cancer Agent. Molecules 2022; 27:molecules27082409. [PMID: 35458609 PMCID: PMC9029529 DOI: 10.3390/molecules27082409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 02/04/2023] Open
Abstract
Electron-rich, nitrogenous heteroaromatic compounds interact more with biological/cellular components than their non-nitrogenous counterparts. The strong intermolecular interactions with proteins, enzymes, and receptors confer significant biological and therapeutic properties to the imidazole derivatives, giving rise to a well-known and extensively used range of therapeutic drugs used for infections, inflammation, and cancer, to name a few. The current study investigates the anti-cancer properties of fourteen previously synthesized nitrogenous heterocycles, derivatives of imidazole and oxazolone, on a panel of cancer cell lines and, in addition, predicts the molecular interactions, pharmacokinetic and safety profiles of these compounds. Method: The MTT and CellTiter-Glo® assays were used to screen the imidazole and oxazolone derivatives on six cancer cell lines: HL60, MDA-MB-321, KAIMRC1, KMIRC2, MCF-10A, and HCT8. Subsequently, in vitro tubulin staining and imaging were performed, and the level of apoptosis was measured using the Promega ApoTox-Glo® triplex assay. Furthermore, several computational tools were utilized to investigate the pharmacokinetics and safety profile, including PASS Online, SEA Search, the QikProp tool, SwissADME, ProTox-II, and an in silico molecular docking study on tubulin to identify the critical molecular interactions. Results: In vitro analysis identified compounds 8 and 9 to possess the most significant potent cytotoxic activity on the HL60 and MDA-MB-231 cell lines, supported by PASS Online anti-cancer predictions with pa scores of 0.413 and 0.434, respectively. In addition, compound 9 induced caspase 3/7 dependent-apoptosis and interfered with tubulin polymerization in the MDA-MB-231 cell line, consistent with in silico docking results, identifying binding similarity to the native ligand colchicine. All the derivatives, including compounds 8 and 9, had acceptable pharmacokinetics; however, the safety profile was suboptimal for all the tested derivates except compound 4. Conclusion: The imidazole derivative compound 9 is a promising anti-cancer agent that switches on caspase-dependent apoptotic cell death and modulates microtubule function. Therefore, it could be a lead compound for further drug optimization and development.
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Affiliation(s)
- Rasha Saad Suliman
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
- Correspondence: (R.S.S.); (S.S.A.); Tel.: +966-(11)-429-9570 (R.S.S.); +966-(11)-429-9516 (S.S.A.)
| | - Sahar Saleh Alghamdi
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
- Correspondence: (R.S.S.); (S.S.A.); Tel.: +966-(11)-429-9570 (R.S.S.); +966-(11)-429-9516 (S.S.A.)
| | - Rizwan Ali
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
| | - Ishrat Rahman
- Department of Basic Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Tariq Alqahtani
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
| | - Ibrahim K. Frah
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
| | - Dimah A. Aljatli
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia; (R.A.); (T.A.); (I.K.F.); (D.A.A.)
| | - Sarah Huwaizi
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
| | - Shatha Algheribe
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
| | - Zeyad Alehaideb
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
| | - Imadul Islam
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard Health Affairs, Riyadh 14811, Saudi Arabia; (S.H.); (S.A.); (Z.A.); (I.I.)
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17
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Sung YS, Wu W, Ewbank MA, Utterback RD, Marty MT, Tomat E. Albumin Conjugates of Thiosemicarbazone and Imidazole-2-thione Prochelators: Iron Coordination and Antiproliferative Activity. ChemMedChem 2021; 16:2764-2768. [PMID: 33974730 PMCID: PMC8448912 DOI: 10.1002/cmdc.202100278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 12/19/2022]
Abstract
The central role of iron in tumor progression and metastasis motivates the development of iron-binding approaches in cancer chemotherapy. Disulfide-based prochelators are reductively activated upon cellular uptake to liberate thiol chelators responsible for iron sequestration. Herein, a trimethyl thiosemicarbazone moiety and the imidazole-2-thione heterocycle are incorporated in this prochelator design. Iron binding of the corresponding tridentate chelators leads to the stabilization of a low-spin ferric center in 2 : 1 ligand-to-metal complexes. Native mass spectrometry experiments show that the prochelators form stable disulfide conjugates with bovine serum albumin, thus affording novel bioconjugate prochelator systems. Antiproliferative activities at sub-micromolar levels are recorded in a panel of breast, ovarian and colorectal cancer cells, along with significantly lower activity in normal fibroblasts.
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Affiliation(s)
- Yu-Shien Sung
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
| | - Wangbin Wu
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
| | - Megan A Ewbank
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
| | - Rachel D Utterback
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
| | - Michael T Marty
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
| | - Elisa Tomat
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721-0041, USA
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18
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Fabra D, Matesanz AI, Herrero JM, Alvarez C, Balsa LM, Leon IE, Quiroga AG. Two Different Thiosemicarbazone Tauto‐Conformers Coordinate to Palladium (II). Stability and Biological Studies of the Final Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- David Fabra
- Inorganic Chemistry Department Universidad Autónoma de Madrid Madrid 28049 Spain
| | - Ana I. Matesanz
- Inorganic Chemistry Department Universidad Autónoma de Madrid Madrid 28049 Spain
| | - Jorge M. Herrero
- Inorganic Chemistry Department Universidad Autónoma de Madrid Madrid 28049 Spain
| | - Cristina Alvarez
- Inorganic Chemistry Department Universidad Autónoma de Madrid Madrid 28049 Spain
| | - Lucia M. Balsa
- Centro de Química Inorgánica (CEQUINOR CONICET-UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv 120 1465 1900 La Plata Argentina
| | - Ignacio E. Leon
- Centro de Química Inorgánica (CEQUINOR CONICET-UNLP) Facultad de Ciencias Exactas Universidad Nacional de La Plata Bv 120 1465 1900 La Plata Argentina
| | - Adoracion G. Quiroga
- Inorganic Chemistry Department Universidad Autónoma de Madrid Madrid 28049 Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid Madrid 28049 Spain
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