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Talebipour A, Saviz M, Vafaiee M, Faraji-Dana R. Facilitating long-term cell examinations and time-lapse recordings in cell biology research with CO 2 mini-incubators. Sci Rep 2024; 14:3418. [PMID: 38341451 PMCID: PMC10858865 DOI: 10.1038/s41598-024-52866-y] [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: 06/12/2023] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
In recent years, microscopy has revolutionized the study of dynamic living cells. However, performing long-term live cell imaging requires stable environmental conditions such as temperature, pH, and humidity. While standard incubators have traditionally provided these conditions, other solutions, like stagetop incubators are available. To further enhance the accessibility of stable cell culture environments for live cell imaging, we developed a portable CO2 cell culture mini-incubator that can be easily adapted to any x-y inverted microscope stage, enabling long-term live cell imaging. This mini-incubator provides and maintains stable environmental conditions and supports cell viability comparable to standard incubators. Moreover, it allows for parallel experiments in the same environment, saving both time and resources. To demonstrate its functionality, different cell lines (VERO and MDA-MB-231) were cultured and evaluated using various assays, including crystal violet staining, MTT, and flow cytometry tests to assess cell adhesion, viability, and apoptosis, respectively. Time-lapse imaging was performed over an 85-h period with MDA-MB-231 cells cultured in the mini-incubator. The results indicate that this device is a viable solution for long-term imaging and can be applied in developmental biology, cell biology, and cancer biology research where long-term time-lapse recording is required.
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Affiliation(s)
- Ali Talebipour
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mehrdad Saviz
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Mohaddeseh Vafaiee
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Reza Faraji-Dana
- Center of Excellence on Applied Electromagnetic Systems, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
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Alipanah-Poor K, Sheervalilou R, Irajirad R, Sarikhani A, Tavangari Z, Alamzadeh Z, Ghaznavi H, Khoei S. Physico-chemical and MR relaxometry study of bovine serum albumin-coated magneto-plasmonic nanoparticles designed for potential use in cancer nanotheranostics. Magn Reson Imaging 2023; 103:208-215. [PMID: 37348741 DOI: 10.1016/j.mri.2023.06.013] [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: 06/17/2022] [Revised: 05/13/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
PURPOSE In recent years, the use of nanoparticles has been developed to improve MRI contrast. To improve the contrast agents in image-guided therapy by Multifunctional nanoparticles, in this study, we synthesized a theranostic magneto-plasmonic nanocomplex based on magnetic iron oxide nanoparticles and bovine serum albumin-modified gold nanorod (Au@BSA-Fe3O4@CMD). The purpose of synthesizing these nanoparticles was to use them as MRI contrast agent and photothermal agents in in vitro and in vivo experiments. MATERIALS AND METHODS Initially, the properties of the synthesized nanoparticles were investigated by methods such as DLS, TEM, FTIR. MTT assay was used to evaluate the toxicity of nanoparticles. Finally, to evaluate the contrast ability of nanoparticles, MRI images were taken in in vitro and in vivo conditions and then the images were analyzed. RESULTS MTT test results on CT26 cell line showed no significant cytotoxicity for Au@BSA-Fe3O4@CMD nanoparticles at concentrations up to 20 ppm. The in vitro results demonstrated that the Au@BSA-Fe3O4@CMD nanocomplex has high T2 relaxation rate and great relaxivities (r2 = 140.14 mM-1 s-1, r1 = 2.066 mM-1 s-1, r2/r1 = 67.83). For in vivo conditions, a decrease in T2 signal of 9.64 and 11.01, respectively, was observed for intratumoral and intraperitoneal injection of nanoparticles. CONCLUSION These in vitro and in vivo studies show that Au @ BSA-Fe3O4@CMD nanoparticles can significantly reduce the signal intensity of T2-weight MRI images, and therefore can offer significant potential as a theranostic platform for effective tumor MR imaging.
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Affiliation(s)
- Khadijeh Alipanah-Poor
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran; Medical Physics Department, Iran University of Medical Sciences, Tehran, Iran
| | | | - Rasoul Irajirad
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Sarikhani
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran; Medical Physics Department, Iran University of Medical Sciences, Tehran, Iran
| | - Zahed Tavangari
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran; Medical Physics Department, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Alamzadeh
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Habib Ghaznavi
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Samideh Khoei
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran; Medical Physics Department, Iran University of Medical Sciences, Tehran, Iran.
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Abdelhakm LO, Kandil EI, Mansour SZ, El-Sonbaty SM. Chrysin Encapsulated Copper Nanoparticles with Low Dose of Gamma Radiation Elicit Tumor Cell Death Through p38 MAPK/NF-κB Pathways. Biol Trace Elem Res 2023; 201:5278-5297. [PMID: 36905557 PMCID: PMC10509080 DOI: 10.1007/s12011-023-03596-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 02/04/2023] [Indexed: 03/12/2023]
Abstract
Improving radiation effect on tumor cells using radiosensitizers is gaining traction for improving chemoradiotherapy. This study aimed to evaluate copper nanoparticles (CuNPs) synthesized using chrysin as radiosensitizer with γ-radiation on biochemical and histopathological approaches in mice bearing Ehrlich solid tumor. CuNPs were characterized with irregular round sharp shape with size range of 21.19-70.79 nm and plasmon absorption at 273 nm. In vitro study on MCF-7 cells detected cytotoxic effect of CuNPs with IC50 of 57.2 ± 3.1 μg. In vivo study was performed on mice transplanted with Ehrlich solid tumor (EC). Mice were injected with CuNPs (0.67 mg/kg body weight) and/or exposed to low dose of gamma radiation (0.5 Gy). EC mice exposed to combined treatment of CuNPs and radiation showed a marked reduction in tumor volume, ALT and CAT, creatinine, calcium, and GSH, along with elevation in MDA, caspase-3 in parallel with inhibition of NF-κB, p38 MAPK, and cyclin D1 gene expression. Comparing histopathological findings of treatment groups ends that combined treatment was of higher efficacy, showing tumor tissue regression and increase in apoptotic cells. In conclusion, CuNPs with a low dose of gamma radiation showed more powerful ability for tumor suppression via promoting oxidative state, stimulating apoptosis, and inhibiting proliferation pathway through p38MAPK/NF-κB and cyclinD1.
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Affiliation(s)
- Lubna O Abdelhakm
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Eman I Kandil
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Somaya Z Mansour
- Radiation Biology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Sawsan M El-Sonbaty
- Radiation Microbiology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
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Meivita MP, Go SX, Mozar FS, Li L, Tan YS, Bajalovic N, Loke DK. Shape complementarity processes for ultrashort-burst sensitive M13-PEG-WS 2-powered MCF-7 cancer cell sensors. NANOSCALE 2023; 15:16658-16668. [PMID: 37800342 DOI: 10.1039/d3nr03573e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Biomarkers have the potential to be utilized in disease diagnosis, prediction and monitoring. The cancer cell type is a leading candidate for next-generation biomarkers. Although traditional digital biomolecular sensor (DBS) technology has shown to be effective in assessing cell-based interactions, low cell-population detection of cancer cell types is extremely challenging. Here, we controlled the electrical signature of a two-dimensional (2D) nanomaterial, tungsten disulfide (WS2), by utilizing a combination of the Phage-integrated Polymer and the Nanosheet (PPN), viz., the integration of the M13-conjugated polyethylene glycol (PEG) and the WS2, through shape-complementarity phenomena, and developed a sensor system, i.e., the Phage-based DBS (P-DBS), for the specific, rapid, sensitive detection of clinically-relevant MCF-7 cells. The P-DBS attains a detection limit of 12 cells per μL, as well as a contrast of 1.25 between the MCF-10A sample signal and the MCF-7 sample signal. A reading length of 200 μs was further achieved, along with a relative cell viability of ∼100% for both MCF-7 and MCF-10A cells and with the PNN. Atomistic simulations reveal the structural origin of the shape complementarity-facilitated decrease in the output impedance of the P-DBS. The combination of previously unreported exotic sensing materials and digital sensor design represents an approach to unlocking the ultra-sensitive detection of cancer cell types and provides a promising avenue for early cancer diagnosis, staging and monitoring.
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Affiliation(s)
- Maria P Meivita
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design, Singapore 487372, Singapore.
| | - Shao-Xiang Go
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design, Singapore 487372, Singapore.
| | - Fitya S Mozar
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design, Singapore 487372, Singapore.
| | - Lunna Li
- Thomas Young Centre and Department of Chemical Engineering, University College London, London WC1E 7JE, UK
| | - Yaw Sing Tan
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore
| | - Natasa Bajalovic
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design, Singapore 487372, Singapore.
| | - Desmond K Loke
- Department of Science, Mathematics and Technology, Singapore University of Technology and Design, Singapore 487372, Singapore.
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Feng L, Li G, Li D, Duan G, Liu J. Cuproptosis-related gene SERPINE1 is a prognostic biomarker and correlated with immune infiltrates in gastric cancer. J Cancer Res Clin Oncol 2023; 149:10851-10865. [PMID: 37318594 PMCID: PMC10423162 DOI: 10.1007/s00432-023-04900-1] [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: 04/15/2023] [Accepted: 05/20/2023] [Indexed: 06/16/2023]
Abstract
PURPOSE The serine protease inhibitor clade E member 1 (SERPINE1) has been studied as a potential biomarker in a variety of cancers, but poorly studied in gastric cancer (GC). The purpose of this study was to explore the prognostic value of SERPINE1 in GC and primarily analyze its functions. METHODS We analyzed the the prognostic value of SERPINE1 and studied the relationship with clinicopathologic biomarkers in gastric cancer. The expression of SERPINE1 was analyzed by GEO and TCGA databases. Moreover, we validated the results by immunohistochemistry. Next, the correlation analysis between SERPINE1 and the cuproptosis-related genes was analyzed by the "Spearman" method. CIBERSORT and TIMER algorithms were used to analyze the correlation of SERPINE1 with immune infiltration. Furthermore, GO and KEGG gene enrichment analyses were used to study the functions and pathways that SERPINE1 might be involved in. Then, drug sensitivity analysis was performed using CellMiner database. Finally, a cuproptosis-immune-related prognostic model was constructed using genes related to immune and cuproptosis, and verified against external datasets. RESULTS SERPINE1 was up-regulated in gastric cancer tissues, which tends toward poor prognosis. Using immunohistochemistry experiment, the expression and prognostic value of SERPINE1 were verified. Then, we found that SERPINE1 was negatively correlated with cuproptosis-related genes FDX1, LIAS, LIPT1, and PDHA1. On the contrary, SERPINE1 was positively correlated with APOE. This indicates the effect of SERPINE1 on the cuproptosis process. Furthermore, by conducting immune-related analyses, it was revealed that SERPINE1 may promote the inhibitory immune microenvironment. The infiltration level of resting NK cells, neutrophils, activated mast cells, and macrophages M2 was positively correlated with SERPINE1. However, B cell memory and plasma cells were negatively correlated with SERPINE1. Functional analysis showed that SERPINE1 was closely related to angiogenesis, apoptosis, and ECM degradation. The KEGG pathway analysis showed that SERPINE1 may be associated with P53, Pi3k/Akt, TGF-β, and other signaling pathways. Drug sensitivity analysis showed that SERPINE1 could be also seen as a potential treatment target. The risk model based on SERPINE1 co-expression genes could better predict the survival of GC patients than SERPINE1 alone. We also verified the prognostic value of the risk score by GEO external datasets. CONCLUSION SERPINE1 is highly expressed in gastric cancer and related to poor prognosis. SERPINE1 may regulate cuproptosis and the immune microenvironment by a series of pathways. Therefore, SERPINE1 as a prognostic biomarker and potential therapeutic target deserves further study.
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Affiliation(s)
- Leiran Feng
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 China
| | - Guixin Li
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 China
| | - Dongbin Li
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 China
| | - Guoqiang Duan
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 China
| | - Jin Liu
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 China
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Feizpour S, Hosseini-Yazdi SA, Safarzadeh E, Baradaran B, Dusek M, Poupon M. A novel water-soluble thiosemicarbazone Schiff base ligand and its complexes as potential anticancer agents and cellular fluorescence imaging. J Biol Inorg Chem 2023:10.1007/s00775-023-02001-5. [PMID: 37129705 DOI: 10.1007/s00775-023-02001-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
A novel fluorescent ligand (H2LCl⋅1.5CH3OH, 1) was synthesized and metal complexes of 1 with Mn(II), Fe(III), Ni(II), Cu(II), and Zn(II) were obtained as Mn(HL)2Cl2 (2), Fe(HL)2Cl3⋅3H2O (3), Ni(L)(HL)Cl⋅8H2O (4), Cu(HL)Cl2⋅4H2O (5), Zn(H2L)Cl3 (6), respectively. These compounds were identified by spectroscopic methods, elemental analysis, molar conductivity, and single-crystal X-ray crystallography. According to the crystal structure of 4 nickel (II), center is surrounded by two ligands in a distorted octahedral geometry. The ligand and its complexes are soluble in water and have excellent stability. In vitro anti-proliferative activity of these compounds was evaluated against human breast adenocarcinoma (MCF-7) and human lipo-sarcoma (SW-872) as cancer cells and human fibroblasts (HFF-2) as normal cells by MTT assay. Interestingly, complex 5 exhibited excellent activity against both cancer cells with low IC50 value 22.18 ± 0.35 μg/mL (35.66 ± 0.56 μM) for SW-872 and 79.41 ± 3.54 μg/mL (127.6 ± 5.69 μM) for MCF-7 among the compounds and in comparison with paclitaxel (PTX) which acts finely. Morphological changes were evaluated by flow cytometry that revealed apoptosis is the main cause of cell death. Likewise, cell cycle studies indicated the cell cycle arrest in the G1 and S phases for complex 5 against MCF-7 and SW-872 cancer cells, while complex 6 could arrest the MCF-7 and SW-872 cells in G2 and G1 phases, respectively. All of the compounds are fluorescent which enabled us to monitor the uptake and intracellular distribution in living human cancer cells by fluorescence microscopy.
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Affiliation(s)
- Sima Feizpour
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-14766, Iran
| | | | - Elham Safarzadeh
- Department of Microbiology and Immunology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614731, Iran
| | - Michal Dusek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21, Prague 8, Czech Republic
| | - Morgane Poupon
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21, Prague 8, Czech Republic
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Low HY, Yang CT, Xia B, He T, Lam WWC, Ng DCE. Radiolabeled Liposomes for Nuclear Imaging Probes. Molecules 2023; 28:molecules28093798. [PMID: 37175207 PMCID: PMC10180453 DOI: 10.3390/molecules28093798] [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: 03/17/2023] [Revised: 04/17/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Quantitative nuclear imaging techniques are in high demand for various disease diagnostics and cancer theranostics. The non-invasive imaging modality requires radiotracing through the radioactive decay emission of the radionuclide. Current preclinical and clinical radiotracers, so-called nuclear imaging probes, are radioisotope-labeled small molecules. Liposomal radiotracers have been rapidly developing as novel nuclear imaging probes. The physicochemical properties and structural characteristics of liposomes have been elucidated to address their long circulation and stability as radiopharmaceuticals. Various radiolabeling methods for synthesizing radionuclides onto liposomes and synthesis strategies have been summarized to render them biocompatible and enable specific targeting. Through a variety of radionuclide labeling methods, radiolabeled liposomes for use as nuclear imaging probes can be obtained for in vivo biodistribution and specific targeting studies. The advantages of radiolabeled liposomes including their use as potential clinical nuclear imaging probes have been highlighted. This review is a comprehensive overview of all recently published liposomal SPECT and PET imaging probes.
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Affiliation(s)
- Ho Ying Low
- Department of Nuclear Medicine and Molecular Imaging, Radiological Sciences Division, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
| | - Chang-Tong Yang
- Department of Nuclear Medicine and Molecular Imaging, Radiological Sciences Division, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
- Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Bin Xia
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Tao He
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Winnie Wing Chuen Lam
- Department of Nuclear Medicine and Molecular Imaging, Radiological Sciences Division, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
- Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - David Chee Eng Ng
- Department of Nuclear Medicine and Molecular Imaging, Radiological Sciences Division, Singapore General Hospital, Outram Road, Singapore 169608, Singapore
- Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
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Abd El-Fattah W, Abu Ali OA, Alfaifi MY, Shati AA, Eldin I. Elbehairi S, Abu Almaaty AH, Elshaarawy RF, Fayad E. New Mn(III)/Fe(III) complexes with thiohydantoin-supported imidazolium ionic liquids for breast cancer therapy. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
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Khaksar S, Panjehpour A, Ghadermazi E, Motieiyan E, Aliabadi A, Rostamnia S, Marabello D, Abdolmaleki S. Study on crystallographic structure and antiproliferative effect of mixed-ligand strontium(II) complex and N, Nˊ–bis(2-hydroxy-5-methylphenyl) pyridine-2,6-dicarboxamide ligand. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tominaga S, Yoshioka H, Yokota S, Tsukiboshi Y, Suzui M, Nagai M, Hara H, Maeda T, Miura N. Copper-induced diurnal hepatic toxicity is associated with Cry2 and Per1 in mice. Environ Health Prev Med 2023; 28:78. [PMID: 38092388 PMCID: PMC10739358 DOI: 10.1265/ehpm.23-00205] [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: 08/04/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND This study aimed to investigate diurnal variations in copper-induced hepatic toxicity and the molecular mechanisms underlying this chronotoxicity. METHODS Male C57BL/6J mice were intraperitoneally injected with copper chloride (CuCl2) at zeitgeber time 2 (ZT2) or 14 (ZT14), twice per week for 5 or 8 weeks. Seventy-two hours after the final CuCl2 injection, the mice were euthanized, and plasma samples were collected. The livers and kidneys were collected and weighed. In vitro experiments were performed to assess cell viability and fluctuations in clock gene expression levels in Hepa1-6 cells after CuCl2 treatment. We examined copper homeostasis- and apoptosis-related genes under clock genes overexpression. RESULTS Repeated CuCl2 administration for 8 weeks resulted in more severe toxicity at ZT14 compared to ZT2. CuCl2 administration at ZT14 elevated plasma aspartate aminotransferase, hepatic tumor necrosis factor-α, and interleukin-6 for 5 weeks, whereas the toxic effects of CuCl2 administration at ZT2 were weaker. Moreover, CuCl2 treatment inhibited Hepa1-6 cell viability in a dose-dependent manner. We observed increased expression of three clock genes (Ciart, Cry2, and Per1) after CuCl2 treatment. Among them, overexpression of Cry2 and Per1 accelerated CuCl2-induced inhibition of Hepa1-6 cell viability. Moreover, we found that the overexpression of Cry2 and Per1 regulates cleaved caspase-3 by modulating the copper transporter genes ATP7B and CTR1. CONCLUSION These results suggest that CuCl2-induced diurnal toxicity is associated with Cry2 and Per1 expression through the regulation of copper transporter genes in mice.
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Affiliation(s)
- Sarah Tominaga
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi 463-8521, Japan
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Hiroki Yoshioka
- Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences, 3-25-26 Tono-machi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Yosuke Tsukiboshi
- Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Masumi Suzui
- Department of Neurotoxicology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Makoto Nagai
- Graduate School of Health and Medicine, Gifu University of Medical Science, 795-1 Nagamine Ichihiraga, Seki, Gifu 501-3892, Japan
| | - Hirokazu Hara
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, Gifu 501-1196, Japan
| | - Tohru Maeda
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi 463-8521, Japan
| | - Nobuhiko Miura
- Department of Health Science, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa 245-2006, Japan
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Mathew JE, Ramamoorthy S. Elucidation of the interaction of apocarotenoids with calf thymus DNA by biophysical techniques and in vitro study in MCF-7 cells to explore their potential in cancer therapy. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2023; 26:1083-1089. [PMID: 37605726 PMCID: PMC10440139 DOI: 10.22038/ijbms.2023.69926.15213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 05/03/2023] [Indexed: 08/23/2023]
Abstract
Objectives DNA is one of the targets of cancer-therapeutic small molecules. Cisplatin, a DNA intercalator, is one of the first-line drugs in the cancer chemo regimen which comes with health-compromising side effects during chemotherapy. The synergistic effect of natural molecules with cisplatin can help to potentiate its anti-cancer efficacy and decrease its negative effect on health. Here, we report the interaction of cisplatin with calf thymus-DNA (ct-DNA) in combination with natural molecules like apocarotenoids which are reported for their therapeutic properties. Materials and Methods The combinatorial effect of apocarotenoids on ct-DNA was explored through various biophysical techniques such as UV-Visible spectroscopy, circular dichroism studies, DNA melt curve analysis, viscosity measurements, and an in vitro study in MCF-7 cells by cell cycle analysis. Results UV-Visible spectroscopy studies suggest apocarotenoids and their combination shows a non-intercalative mode of binding. Circular dichroism analysis showed no major changes in DNA form during the interaction of DNA with apocarotenoids and their respective combinations with cisplatin, which is suggestive of the groove-binding mode of apocarotenoids. DNA melt curve analysis showed a decrease in the intensity of the fluorescence for apocarotenoids with cisplatin which indicates the possibility of DNA interaction through groove binding. Viscosity studies suggested a groove binding mode of interaction of ct-DNA with apocarotenoids and their combination as there was minimal change in the viscosity measurements. The in vitro analysis exhibits that the apocarotenoids and their combination have a considerable effect on DNA synthesis. Conclusion This study provides a better perspective on the possible mode of interaction between ct-DNA and natural molecules along with cisplatin.
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Affiliation(s)
- Jill Elza Mathew
- School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Siva Ramamoorthy
- School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
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Evaluation of central-metal effect on anticancer activity and mechanism of action of isostructural Cu(II) and Ni(II) complexes containing pyridine-2,6-dicarboxylate. Eur J Med Chem 2022; 245:114897. [DOI: 10.1016/j.ejmech.2022.114897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/23/2022] [Accepted: 10/29/2022] [Indexed: 11/05/2022]
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Emami F, Aliomrani M, Tangestaninejad S, Kazemian H, Moradi M, Rostami M. Copper-Curcumin-Bipyridine Dicarboxylate Complexes as Anticancer Candidates. Chem Biodivers 2022; 19:e202200202. [PMID: 36163613 DOI: 10.1002/cbdv.202200202] [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: 03/05/2022] [Accepted: 09/08/2022] [Indexed: 11/08/2022]
Abstract
In this study, copper complexes with Curcumin (Cur) and 2,2'-bipyridine-5,5'-dicarboxylic acid (BPYD) were synthesized and their cytotoxicity on the MDA-MB-231 cell lines was evaluated. The resulting complex was characterized using FTIR, UV/VIS, CHNS, TGA, ICP-MS, and Mass spectroscopy techniques. The in-vitro cytotoxicity was studied on the MDA-MB-231 as a cancerous cell line and the HUVEC as a normal cell line. Reactive oxygen species (ROS) production was measured using the 2',7'-dichlorofluorescein diacetate (DCFDA) test in the MDA-MB-231 cancer cell lines. The in-vitro assays revealed that all synthesized copper complexes exhibited a higher cytotoxicity effect than carboplatin as a positive control on the MDA-MB-231 cells. While the synthesized complexes exhibited cytotoxic effects on cancerous cell lines, they are practically safe on normal cells. The Cu-Cur-BPYD complexes (a5 & b5) exhibited higher cytotoxicity on MDA-MB-231 cells with IC50 s around 4.9 and 2.3 mM, respectively. It can be concluded that the synthesized Cu-Cur-BPYD complexes (a5 & b5) could be considered effective anticancer candidates in complementary studies.
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Affiliation(s)
- Fatemeh Emami
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Aliomrani
- Department of Pharmacology and Toxicology, Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Hossein Kazemian
- Northern Analytical Lab Services, University of Northern British Columbia, Prince George, BC, Canada.,Department of Chemistry, Faculty of Science and Engineering, University of Northern British Columbia, 3333 University Way, Prince George, BC, V2 N 4Z9, Canada
| | - Mohammadmahdi Moradi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboubeh Rostami
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Bansal A, Saleh-E-In MM, Kar P, Roy A, Sharma NR. Synthesis of Carvacrol Derivatives as Potential New Anticancer Agent against Lung Cancer. Molecules 2022; 27:molecules27144597. [PMID: 35889476 PMCID: PMC9323284 DOI: 10.3390/molecules27144597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023] Open
Abstract
Lung cancer remains a major public health concern among all cancer diseases due to the toxicity and side-effects of the available commercially synthesized drugs. Natural product-derived synthesized anticancer drugs are now of promising interest to fight against cancer death. Carvacrol is a major component of most essential oil-bearing plants with potential pharmacological activity, especially against various cancer cell lines. Among the other organometallic compounds, copper complexes have been reported to be effective anticancer agents against various cancer cell lines, especially lung and leukemia cancers, due to the nontoxic nature of copper in normal cells since it is an endogenic metal. In this study, we synthesized three carvacrol derivatives, i.e., carvacrol aldehyde, Schiff base, and copper–Schiff base complex, through an established synthesis protocol and characterized the synthesized product using various spectroscopic techniques. The synthesized derivatives were evaluated for in vitro cytotoxic activity against different cancer cell lines, including human lung cancer (A549) and human fibroblast (BALB-3T3). Our findings showed that the copper–Schiff base complex derived from carvacrol inhibited the proliferation and migration of the A549 cell lines in a dose-dependent manner. This activity might be due to the inhibition of cell proliferation and migration at the G2/M cell-cycle phase, as well as apoptosis, possibly through the activation of the mitochondrial apoptotic pathway. To our knowledge, this is the first report on the activity of the copper–Schiff base complex of carvacrol against A549 cell lines. Our result highlights that a new synthesized copper complex from carvacrol could be a novel potential drug in the treatment of lung cancer.
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Affiliation(s)
- Anu Bansal
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, India;
| | - Md. Moshfekus Saleh-E-In
- Division of Forest Resources, College of Forest and Environmental Sciences, Kangwon National University, Chunchon 200701, Korea;
| | - Pallab Kar
- B.S. Diagnostic and Pathology Laboratory, Siliguri 734001, India;
| | - Ayan Roy
- Mailman School of Public Health, Columbia University, New York, NY 10032, USA;
| | - Neeta Raj Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, India;
- Correspondence: ; Tel.: +91-828-3921-144
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15
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Polisety A, Misra G, Rajawat J, Katiyar A, Singh H, Bhatt AN. Therapeutic natural compounds Enzastaurin and Palbociclib inhibit MASTL kinase activity preventing breast cancer cell proliferation. Med Oncol 2022; 39:100. [PMID: 35599277 PMCID: PMC9124600 DOI: 10.1007/s12032-022-01701-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/01/2022] [Indexed: 11/29/2022]
Abstract
Microtubule-associated serine/threonine kinase-like (MASTL) regulates mitotic progression and is an attractive target for the development of new anticancer drugs. In this study, novel inhibitory molecules were screened against MASTL kinase, a protein involved in cell proliferation in breast cancer. Natural source-derived drugs Enzastaurin and Palbociclib were selected to identify their role as MASTL kinase inhibitors. Cytotoxic activity, kinase activity, and other cell-based assays of Enzastaurin and Palbociclib were evaluated on human breast cancer (MCF-7) cells. The potential natural compounds caused cytotoxicity in MCF-7 cells in a dose- and time-dependent manner. Further analysis by Annexin V and PI staining indicated that both drugs are potent inducers of apoptosis. Enzastaurin induced G2/M phase arrest, while Palbociclib caused G1 arrest. MASTL kinase activity was significantly abrogated with both the compounds showing EC50 values of 17.13 µM and 10.51 µM, respectively. Taken together, these data strongly suggest that Enzastaurin and Palbociclib possess the ability to inhibit MASTL kinase activity and induce cell death in breast cancer cells, thus exhibiting significant therapeutic potential.
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Affiliation(s)
- Aneesha Polisety
- Molecular Diagnostic & Covid-19 Kit Testing Laboratory, National Institute of Biologicals (NIB), A-32, Sector-62, Institutional Area Noida, Noida, 201309, UP, India
| | - Gauri Misra
- Molecular Diagnostic & Covid-19 Kit Testing Laboratory, National Institute of Biologicals (NIB), A-32, Sector-62, Institutional Area Noida, Noida, 201309, UP, India.
| | - Jyotika Rajawat
- Department of Zoology, University of Lucknow, Lucknow, India
| | - Amit Katiyar
- CCRF: Bioinformatics Facility, All India Institute of Medical Sciences, Delhi, India
| | - Harpreet Singh
- Division of Biomedical Informatics, Data Management Laboratory, ICMR-AIIMS Computational Genomics Centre, Indian Council of Medical Research, New Delhi, India
| | - Anant Narayan Bhatt
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
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16
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Ghosh S, Kundu M, Dutta S, Mahalanobish S, Ghosh N, Das J, Sil PC. Enhancement of anti-neoplastic effects of cuminaldehyde against breast cancer via mesoporous silica nanoparticle based targeted drug delivery system. Life Sci 2022; 298:120525. [PMID: 35378139 DOI: 10.1016/j.lfs.2022.120525] [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: 02/04/2022] [Revised: 03/21/2022] [Accepted: 03/29/2022] [Indexed: 11/15/2022]
Abstract
AIMS Synthesis of novel drug delivery system for targeted delivery of cuminaldehyde to breast cancer cells and the subsequent analyses of anti-neoplastic potential of the drug. MAIN METHODS 3-carboxy-phenyl boronic acid (PBA) conjugated and polyacrylic acid (PAA) gated mesoporous silica nanoparticles (MSNs) were synthesized for the targeted delivery of cuminaldehyde (CUM) to breast cancer cells. Enhancement of anti-neoplastic effects of cuminaldehyde (4-isopropylbenzaldehyde) by the nanoconjugates was assessed. KEY FINDINGS The anti-cancer effects of non-targeted and targeted drug-nanoconjugates were examined in vitro and in vivo. The targeted drug-nanoconjugates caused cell cycle arrest and induced the intrinsic pathway of apoptosis in MCF-7 cells through mitochondrial damage. In vivo intravenous injection of the targeted drug-nanoconjugates led to effective reduction in growth of 4 T1 induced mammary pad tumor in female BALB/c mice via augmented accumulation of cuminaldehyde. The drug-nanoconjugates did not exhibit any systemic toxicity. SIGNIFICANCE Therefore, MSN-PBA-CUM-PAA represents a potent therapeutic model for breast cancer treatment.
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Affiliation(s)
- Sumit Ghosh
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Mousumi Kundu
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Sayanta Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Sushweta Mahalanobish
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Noyel Ghosh
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Joydeep Das
- Department of Chemistry, Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | - Parames C Sil
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India.
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17
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Gan WK, Liew HS, Pua LJW, Ng XY, Fong KW, Cheong SL, Liew YK, Low ML. Novel Cu(II) Schiff Base Complex Combination with Polymyxin B/Phenylalanine-Arginine β-Naphthylamide Against Various Bacterial Strains. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-021-10358-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Machado PHA, Paixão DA, Lino RC, de Souza TR, de Souza Bontempo NJ, Sousa LM, Van Petten de Vasconcelos Azevedo F, Orsolin PC, Lima PMAP, Martins IC, da Costa Guerra JF, Teixeira SC, Araújo TG, Goulart LR, Morelli S, Guerra W, de Oliveira Júnior RJ. A selective Cu II complex with 4-fluorophenoxyacetic acid hydrazide and phenanthroline displays DNA-cleaving and pro-apoptotic properties in cancer cells. Sci Rep 2021; 11:24450. [PMID: 34961767 PMCID: PMC8712526 DOI: 10.1038/s41598-021-03909-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/10/2021] [Indexed: 12/30/2022] Open
Abstract
The thin line between efficacy and toxicity has challenged cancer therapy. As copper is an essential micronutrient and is important to tumor biology, CuII complexes emerged as an alternative to chemotherapy; however, its biological properties need to be better understood. Thus, we report in vitro the antitumor effects of two CuII complexes named [Cu(4-fh)(phen)(ClO4)2] (complex 1) and [Cu(4-nh)(phen)(ClO4)2]·H2O (complex 2), in which 4-fh = 4-fluorophenoxyacetic acid hydrazide; 4-nh = 4-nitrobenzoic hydrazide and phen = 1,10-phenanthroline. Both complexes presented cytotoxic activity against tumor cells, but only complex 1 showed significant selectivity. Complex 1 also induced DNA-damage, led to G0/G1 arrest and triggered apoptosis, which was initiated by an autophagy dysfunction. The significant in vitro selectivity and the action mechanism of complex 1 are noteworthy and reveal this prodrug as promising for anticancer therapy.
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Affiliation(s)
| | | | - Ricardo Campos Lino
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | | | | | - Luana Munique Sousa
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | | | | | | | | | | | - Samuel Cota Teixeira
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia , Uberlândia, MG, Brazil.
| | | | - Luiz Ricardo Goulart
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Sandra Morelli
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Wendell Guerra
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
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19
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Canonico B, Cangiotti M, Montanari M, Papa S, Fusi V, Giorgi L, Ciacci C, Ottaviani MF, Staneva D, Grabchev I. Characterization of a fluorescent 1,8-naphthalimide-functionalized PAMAM dendrimer and its Cu(ii) complexes as cytotoxic drugs: EPR and biological studies in myeloid tumor cells. Biol Chem 2021; 403:345-360. [PMID: 34883001 DOI: 10.1515/hsz-2021-0388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/18/2021] [Indexed: 01/18/2023]
Abstract
The activity and interacting ability of a polyamidoamine (PAMAM) dendrimer modified with 4-N-methylpiperazine-1,8-naphthalimide units (termed D) and complexed by Cu(ii) ions, towards healthy and cancer cells were studied. Comparative electron paramagnetic resonance (EPR) studies of the Cu(ii)-D complex are presented: coordination mode, chemical structure, flexibility and stability of these complexes, in the absence and presence of myeloid cancer cells and peripheral blood mononuclear cells (PBMC). The interactions of Cu(ii) ions in the biological media at different equilibrium times were studied, highlighting different stability and interacting conditions with the cells. Furthermore, flow cytometry and confocal analysis, trace the peculiar properties of the dendrimers in PBMC and U937 cells. Indeed, a new probe (Fly) was used as a potential fluorescent tool for biological imaging of Cu(ii). The study highlights that dendrimer and, mainly, the Cu(ii) metallodendrimer are cytotoxic agents for the cells, specifically for U937 tumor cells, inducing mitochondrial dysfunction, ROS increase and lysosome involvement. The metallodendrimer shows antitumor selectivity, fewer affecting healthy PBMC, inducing a massive apoptotic cell death on U937 cells, in line with the high stability of this complex, as verified by EPR studies. The results underline the potentiality of this metallodendrimer to be used as anticancer drug.
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Affiliation(s)
- Barbara Canonico
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Michela Cangiotti
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Mariele Montanari
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences (DiSPeA), University of Urbino, I-61029 Urbino, Italy
| | - Caterina Ciacci
- Department of Biomolecular Sciences (DISB), University of Urbino, I-61029 Urbino, Italy
| | | | - Desislava Staneva
- University of Chemical Technology and Metallurgy, BG-1756 Sofia, Bulgaria
| | - Ivo Grabchev
- Sofia University "St. Kliment Ohridski", Faculty of Medicine, BG-1407 Sofia, Bulgaria
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20
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Zandi A, Rafizadeh‐Tafti S, Shojaeian F, Ali Khayamian M, Abbasvandi F, Faranoush M, Anbiaee R, Najafikhoshnoo S, Hoseinpour P, Assadi S, Katebi P, Davari sh. Z, Shalileh S, Salemizadeh Parizi M, Vanaei S, Ghaderinia M, Abadijoo H, Taheri P, Reza Esmailinejad M, Sanati H, Reza Rostami M, Sadeghian R, Kordehlachin Y, Sadegh Mousavi‐kiasary SM, Mamdouh A, Hossein Miraghaie S, Baharvand H, Abdolahad M. Positive electrostatic therapy of metastatic tumors: selective induction of apoptosis in cancer cells by pure charges. Cancer Med 2021; 10:7475-7491. [PMID: 34626092 PMCID: PMC8559484 DOI: 10.1002/cam4.4267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 08/04/2021] [Accepted: 08/17/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND We discovered that pure positive electrostatic charges (PECs) have an intrinsic suppressive effect on the proliferation and metabolism of invasive cancer cells (cell lines and animal models) without affecting normal tissues. METHODS We interacted normal and cancer cell lines and animal tumors with PECs by connecting a charged patch to cancer cells and animal tumors. many biochemical, molecular and radiological assays were carried out on PEC treated and control samples. RESULTS Correlative interactions between electrostatic charges and cancer cells contain critical unknown factors that influence cancer diagnosis and treatment. Different types of cell analyses prove PEC-based apoptosis induction in malignant cell lines. Flowcytometry and viability assay depict selective destructive effects of PEC on malignant breast cancer cells. Additionally, strong patterns of pyknotic apoptosis, as well as downregulation of proliferative-associated proteins (Ki67, CD31, and HIF-1α), were observed in histopathological and immunohistochemical patterns of treated mouse malignant tumors, respectively. Quantitative real-time polymerase chain reaction results demonstrate up/down-regulated apoptotic/proliferative transcriptomes (P21, P27, P53/CD34, integrin α5, vascular endothelial growth factor, and vascular endothelial growth factor receptor) in treated animal tumors. Expression of propidium iodide in confocal microscopy images of treated malignant tissues was another indication of the destructive effects of PECs on such cells. Significant tumor size reduction and prognosis improvement were seen in over 95% of treated mouse models with no adverse effects on normal tissues. CONCLUSION We discovered that pure positive electrostatic charges (PECs) have an intrinsic suppressive effect on the proliferation and metabolism of invasive cancer cells (cell lines and animal models) without affecting normal tissues. The findings were statistically and observationally significant when compared to radio/chemotherapy-treated mouse models. As a result, this nonionizing radiation may be used as a practical complementary approach with no discernible side effects after passing future human model studies.
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Affiliation(s)
- Ashkan Zandi
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
- Nano Electronic Center of ExcellenceNanoelectronics and Thin Film Lab.School of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Saeid Rafizadeh‐Tafti
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Fatemeh Shojaeian
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
- School of MedicineShahid Beheshti University of Medical SciencesTehranIran
| | - Mohammad Ali Khayamian
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Fereshteh Abbasvandi
- ATMP DepartmentBreast Cancer Research CenterMotamed Cancer InstituteACECRTehranIran
| | - Mohammad Faranoush
- Pediatric Growth and Development Research CenterInstitute of Endocrinology and MetabolismIran University of Medical SciencesTehranIran
- Cardio‐Oncology Research CenterRajaie Cardiovascuar Medical & Research CenterIran University of Medical SciencesTehranIran
| | - Robab Anbiaee
- Department of Radiation OncologyImam Hossein HospitalShahid Beheshti University of Medical SciencesTehranIran
| | - Sahar Najafikhoshnoo
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | | | - Sepanta Assadi
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Pouyan Katebi
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Zahra Davari sh.
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Shahriar Shalileh
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Mohammad Salemizadeh Parizi
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Shohreh Vanaei
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Mohammadreza Ghaderinia
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Hamed Abadijoo
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Payam Taheri
- Department of Stem Cells and Developmental BiologyCell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyACECRTehranIran
| | | | - Hassan Sanati
- ATMP DepartmentBreast Cancer Research CenterMotamed Cancer InstituteACECRTehranIran
| | - Mohammad Reza Rostami
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Reza Sadeghian
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Yasin Kordehlachin
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - S. M. Sadegh Mousavi‐kiasary
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Amir Mamdouh
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Seyyed Hossein Miraghaie
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental BiologyCell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyACECRTehranIran
- Department of Developmental BiologyUniversity of Science and CultureTehranIran
| | - Mohammad Abdolahad
- Nanobioelectronic Devices Lab.Cancer Electronics Research GroupSchool of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
- Nano Electronic Center of ExcellenceNanoelectronics and Thin Film Lab.School of Electrical and Computer EngineeringFaculty of EngineeringUniversity of TehranTehranIran
- Cancer InstituteImam Khomeini HospitalTehran University of Medical SciencesTehranIran
- UT&TUMS Cancer electronic Research CenterTehran University of Medical SciencesTehranIran
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21
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Lee ZY, Leong CH, Lim KUL, Wong CCS, Pongtheerawan P, Arikrishnan SA, Tan KL, Loh JS, Low ML, How CW, Ong YS, Tor YS, Foo JB. Induction of Apoptosis and Autophagy by Ternary Copper Complex Towards Breast Cancer Cells. Anticancer Agents Med Chem 2021; 22:1159-1170. [PMID: 34315396 DOI: 10.2174/1871520621666210726132543] [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: 02/01/2021] [Revised: 05/29/2021] [Accepted: 06/21/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Copper complex has been gaining much attention in anticancer research as targeted agent since cancer cells uptake more copper than non-cancerous cells. Our group has synthesised a ternary copper complex which is composed of 1,10-phenanthroline and tyrosine [Cu(phen)(L-tyr)Cl].3H20. These two payloads are designed to cleave DNA and inhibit protein degradation system (proteasome) concurrently in cancer cells, making this copper complex a dual-target compound. OBJECTIVE Current study was carried out to investigate the mode of cell death and role of autophagy induced by [Cu(phen)(L-tyr)Cl].3H20 in MCF-7 and MDA-MB-231 breast cancer cells. METHODS Growth inhibition of [Cu(phen)(L-tyr)Cl].3H20 towards MDA-MB-231 and human non-cancerous MCF10A breast cells was determined by MTT assay. Annexin-V-FITC/PI and cell cycle analysis were evaluated by flow cytometry. The expression of p53, Bax, caspase-9, caspase-7, caspase-3 and LC3 were determined using western blot analysis. The cells were then co-treated with hydroxychloroquine to ascertain the role of autophagy induced by [Cu(phen)(L-tyr)Cl].3H20. RESULTS [Cu(phen)(L-tyr)Cl].3H20 inhibited the growth of cancer cells dose-dependently with less toxicity towards MCF10A cells. Additionally, [Cu(phen)(L-tyr)Cl].3H20 induced apoptosis and cell cycle arrest towards MCF-7 and MDA-MB-231 breast cancer cells possibly via regulation of p53, Bax, caspase-9, caspase-3 and capase-7. The expression of LC3II was upregulated in both cancer cell lines upon treatment with [Cu(phen)(L-tyr) Cl].3H20, indicating the induction of autophagy. Co-treatment with autophagy inhibitor hydroxychloroquine significantly enhanced growth inhibition of both cell lines, suggesting that the autophagy induced by [Cu(phen)(L-tyr) Cl].3H20 in both breast cancer cells was promoting cell survival. CONCLUSION [Cu(phen)(L-tyr)Cl].3H20 holds great potential to be developed for breast cancer treatment.
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Affiliation(s)
- Zheng Yang Lee
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Chee Hong Leong
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Krystal U Ling Lim
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Christopher Chun Sing Wong
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Pornwasu Pongtheerawan
- School of Pharmacy, Walailak University, 222, Thai Buri, Tha Sala District, Nakhon Si Thammarat, 80160. Thailand
| | - Sathiavani A Arikrishnan
- School of Biosciences, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Kian Leong Tan
- School of Biosciences, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Jian Sheng Loh
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - May Lee Low
- International Medical University, Department of Pharmaceutical Chemistry, School of Pharmacy, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur. Malaysia
| | - Chee Wun How
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor. Malaysia
| | - Yong Sze Ong
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor. Malaysia
| | - Yin Sim Tor
- Centre for Drug Discovery and Molecular Pharmacology (CDDMP), Faculty of Health & Medical Sciences, Taylor's University, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
| | - Jhi Biau Foo
- School of Pharmacy, Taylor's University, Faculty of Health and Medical Sciences, 1, Jalan Taylors, 47500, Subang Jaya, Selangor. Malaysia
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22
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Aldawsari HM, Ahmed OAA, Alhakamy NA, Neamatallah T, Fahmy UA, Badr-Eldin SM. Lipidic Nano-Sized Emulsomes Potentiates the Cytotoxic and Apoptotic Effects of Raloxifene Hydrochloride in MCF-7 Human Breast Cancer Cells: Factorial Analysis and In Vitro Anti-Tumor Activity Assessment. Pharmaceutics 2021; 13:783. [PMID: 34073780 PMCID: PMC8225169 DOI: 10.3390/pharmaceutics13060783] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/17/2021] [Accepted: 05/21/2021] [Indexed: 02/07/2023] Open
Abstract
Raloxifene hydrochloride (RLX), an antiosteoporotic agent, has been utilized for guarding against breast cancer and recently, for the disease management owing to its estrogen antagonist activity. Nevertheless, RLX exhibits poor bioavailability that could be attributed to reduced water solubility and first pass metabolism. To overcome these challenges, this study aimed at formulating and optimizing RLX emulsomes (RLX-EMLs) to enhance the drug antitumor activity. A 4131 factorial design was employed for assessing the effect of lipoid: solid lipid ratio and solid lipid type on the emulsomes characteristics. The anticancer potential of the optimized formulation and apoptotic parameters were assessed. Vesicle size, entrapment, and release efficiency were significantly influenced by both variables, while zeta potential was influenced by lipoid: solid lipid at p < 0.05. The optimal formulation exhibited vesicle size of 236 ± 8.6 nm, zeta potential of -18.6 ± 0.7 mV, drug entrapment of 98.9 ± 4.9%, and release efficiency of 42.7 ± 1.8%. MTT assay showed concentration-dependent inhibition of MCF-7 cells viability. In addition, cells treated with RLX-EMLs showed significant arrest at G2/M phase associated with significant increase in apoptotic and necrotic cells. The enhanced cytotoxic and anti-proliferative effect of RLX-EMLs relative to raw drug was authenticated through increased Bax/Bcl-2 ratio, caspase-9 activation and depletion of mitochondrial membrane potential.
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Affiliation(s)
- Hibah M. Aldawsari
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.M.A.); (O.A.A.A.); (N.A.A.); (S.M.B.-E.)
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Osama A. A. Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.M.A.); (O.A.A.A.); (N.A.A.); (S.M.B.-E.)
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nabil A. Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.M.A.); (O.A.A.A.); (N.A.A.); (S.M.B.-E.)
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Thikryat Neamatallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Usama A. Fahmy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.M.A.); (O.A.A.A.); (N.A.A.); (S.M.B.-E.)
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Shaimaa M. Badr-Eldin
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.M.A.); (O.A.A.A.); (N.A.A.); (S.M.B.-E.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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23
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Molinaro C, Martoriati A, Pelinski L, Cailliau K. Copper Complexes as Anticancer Agents Targeting Topoisomerases I and II. Cancers (Basel) 2020; 12:E2863. [PMID: 33027952 PMCID: PMC7601307 DOI: 10.3390/cancers12102863] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 12/12/2022] Open
Abstract
Organometallics, such as copper compounds, are cancer chemotherapeutics used alone or in combination with other drugs. One small group of copper complexes exerts an effective inhibitory action on topoisomerases, which participate in the regulation of DNA topology. Copper complexes inhibitors of topoisomerases 1 and 2 work by different molecular mechanisms, analyzed herein. They allow genesis of DNA breaks after the formation of a ternary complex, or act in a catalytic mode, often display DNA intercalative properties and ROS production, and sometimes display dual effects. These amplified actions have repercussions on the cell cycle checkpoints and death effectors. Copper complexes of topoisomerase inhibitors are analyzed in a broader synthetic view and in the context of cancer cell mutations. Finally, new emerging treatment aspects are depicted to encourage the expansion of this family of highly active anticancer drugs and to expend their use in clinical trials and future cancer therapy.
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Affiliation(s)
- Caroline Molinaro
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
| | - Alain Martoriati
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
| | - Lydie Pelinski
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France;
| | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
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24
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Kwok ML, Hu XL, Meng Q, Chan KM. Whole-transcriptome sequencing (RNA-seq) analyses of the zebrafish liver cell line, ZFL, after acute exposure to Cu2+ ions. Metallomics 2020; 12:732-751. [DOI: 10.1039/d0mt00005a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
All cells require Cu as a cofactor, but Cu2+ induces toxicity and oxidative damage. A strict system is thus needed to maintain Cu homeostasis.
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Affiliation(s)
- Man Long Kwok
- School of Life Sciences
- The Chinese University of Hong Kong
- Sha Tin
- Hong Kong
| | - Xue Lei Hu
- School of Life Sciences
- The Chinese University of Hong Kong
- Sha Tin
- Hong Kong
| | - Qi Meng
- School of Life Sciences
- The Chinese University of Hong Kong
- Sha Tin
- Hong Kong
| | - King Ming Chan
- School of Life Sciences
- The Chinese University of Hong Kong
- Sha Tin
- Hong Kong
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25
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Pavlíčková V, Rimpelová S, Jurášek M, Záruba K, Fähnrich J, Křížová I, Bejček J, Rottnerová Z, Spiwok V, Drašar P, Ruml T. PEGylated Purpurin 18 with Improved Solubility: Potent Compounds for Photodynamic Therapy of Cancer. Molecules 2019; 24:E4477. [PMID: 31817655 PMCID: PMC6943672 DOI: 10.3390/molecules24244477] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/29/2019] [Accepted: 12/01/2019] [Indexed: 12/12/2022] Open
Abstract
Purpurin 18 derivatives with a polyethylene glycol (PEG) linker were synthesized as novel photosensitizers (PSs) with the goal of using them in photodynamic therapy (PDT) for cancer. These compounds, derived from a second-generation PS, exhibit absorption at long wavelengths; considerable singlet oxygen generation and, in contrast to purpurin 18, have higher hydrophilicity due to decreased logP. Together, these properties make them potentially ideal PSs. To verify this, we screened the developed compounds for cell uptake, intracellular localization, antitumor activity and induced cell death type. All of the tested compounds were taken up into cancer cells of various origin and localized in organelles known to be important PDT targets, specifically, mitochondria and the endoplasmic reticulum. The incorporation of a zinc ion and PEGylation significantly enhanced the photosensitizing efficacy, decreasing IC50 (half maximal inhibitory compound concentration) in HeLa cells by up to 170 times compared with the parental purpurin 18. At effective PDT concentrations, the predominant type of induced cell death was apoptosis. Overall, our results show that the PEGylated derivatives presented have significant potential as novel PSs with substantially augmented phototoxicity for application in the PDT of cervical, prostate, pancreatic and breast cancer.
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Affiliation(s)
- Vladimíra Pavlíčková
- Department of Biochemistry and Microbiology, University of Chemistry and Technology in Prague, Technická 3, 166 28 Prague 6, Czech Republic; (V.P.); (J.B.); (V.S.)
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology in Prague, Technická 3, 166 28 Prague 6, Czech Republic; (V.P.); (J.B.); (V.S.)
| | - Michal Jurášek
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Kamil Záruba
- Department of Analytical Chemistry, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic; (K.Z.); (J.F.)
| | - Jan Fähnrich
- Department of Analytical Chemistry, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic; (K.Z.); (J.F.)
| | - Ivana Křížová
- Department of Biotechnology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Jiří Bejček
- Department of Biochemistry and Microbiology, University of Chemistry and Technology in Prague, Technická 3, 166 28 Prague 6, Czech Republic; (V.P.); (J.B.); (V.S.)
| | - Zdeňka Rottnerová
- Central laboratories, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Vojtěch Spiwok
- Department of Biochemistry and Microbiology, University of Chemistry and Technology in Prague, Technická 3, 166 28 Prague 6, Czech Republic; (V.P.); (J.B.); (V.S.)
| | - Pavel Drašar
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology in Prague, Technická 3, 166 28 Prague 6, Czech Republic; (V.P.); (J.B.); (V.S.)
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