1
|
Görg R, Büttgenbach A, Jakobs J, Kurtoğlu Babayev FH, Rolles B, Rink L, Wessels I. Leukemia cells accumulate zinc for oncofusion protein stabilization. J Nutr Biochem 2024; 123:109482. [PMID: 37839758 DOI: 10.1016/j.jnutbio.2023.109482] [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: 07/26/2023] [Revised: 09/20/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
Acute promyelocytic leukemia (APL) and chronic myeloid leukemia (CML) are both hematological malignancies characterized by genetic alterations leading to the formation of oncofusion proteins. The classical chromosomal aberrations in APL and CML result in the PML-RARα and BCR-ABL1 oncofusion proteins, respectively. Interestingly, our flow cytometric analyses revealed elevated free intracellular zinc levels in various leukemia cells, which may play a role in stabilizing oncofusion proteins in leukemia and thus support cell proliferation and malignancy. Long-term zinc deficiency resulted in the degradation of PML-RARα in NB4 cells (APL cell line) and of BCR-ABL1 in K562 cells (CML cell line). This degradation may be explained by increased caspase 3 activity observed in zinc deficient cells, whereas zinc reconstitution normalized the caspase 3 activity and abolished zinc deficiency-induced oncofusion protein degradation. In NB4 cells, fluorescence microscopic images further indicated enlarged and enriched lysosomes during zinc deficiency, suggesting increased rates of autophagy. Moreover, NB4 cells exhibited increased expression of the zinc transporters ZIP2, ZIP10 and ZnT3 during zinc deficiency and revealed excessive accumulation of zinc in contrast to healthy peripheral blood mononuclear cells (PBMCs), when zinc was abundantly available extracellularly. Our results highlight the importance of altered zinc homeostasis for some characteristics in leukemia cells, uncover potential pathways underlying the effects of zinc deficiency in leukemia cells, and provide potential alternative strategies by which oncofusion proteins can be degraded.
Collapse
Affiliation(s)
- Richard Görg
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Anna Büttgenbach
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Jana Jakobs
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | | | - Benjamin Rolles
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany; Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany; Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), Aachen, Germany; Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lothar Rink
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany.
| | - Inga Wessels
- Institute of Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany; Center of Allergy & Environment (ZAUM), Technical University and Helmholtzzentrum Munich, Munich, Germany.
| |
Collapse
|
2
|
Scorpion Venom Peptide Smp24 Revealed Apoptotic and Antiangiogenic Activities in Solid-Ehrlich Carcinoma Bearing Mice. Int J Pept Res Ther 2023. [DOI: 10.1007/s10989-023-10494-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
AbstractScorpion venom contains various peptides that could be utilized to treat various diseases, including cancer. This study aimed to evaluate the anti-cancer activity of scorpion venom peptide (Smp24) using a solid Ehrlich Carcinoma (SEC) mice model. SEC model was established by subcutaneous transplantation of SEC cells into Swiss albino female mice afterward subcutaneous injection of the Smp24 peptide compared to 5-Fluorouracil (5-FU) as a standard drug. Various biochemical, hematological, histopathological, immunohistochemical, and molecular (western blotting and RT-PCR) assays were performed to evaluate the antitumor activity of Smp24. Results revealed that Smp24 peptide significantly reduced tumor volume. Interestingly, Smp24 peptide significantly restored normal body functions in cancer-treated groups by maintaining HB, RBC’s, and WBC’s levels, reducing the elevated serum ALT and AST, and increasing total protein and albumin as well as enhancing antioxidant status through reducing the level of MDA and NO and elevating GSH, SOD, and CAT levels. Moreover, it restored the normal morphology of the liver and kidney tissues and improved hematological parameters in cancer-treated animals. Smp24 induced apoptosis in SEC cells, through upregulation of caspase-3 and BAX and the downregulation of VEGF, Bcl-2, p53, PCNA, and Ki67. Moreover, results exhibited the apoptotic and antiangiogenic effects of Smp24 against SEC cancer cells. These findings supported our previous results about the anti-cancer efficacy of Smp24 and made it a good candidate for developing effective and safe anti-cancer agents.
Collapse
|
3
|
Belanger-Coast MG, Zhang M, Bugay V, Gutierrez RA, Gregory SR, Yu W, Brenner R. Dequalinium chloride is an antagonists of α7 nicotinic acetylcholine receptors. Eur J Pharmacol 2022; 925:175000. [PMID: 35525312 DOI: 10.1016/j.ejphar.2022.175000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022]
Abstract
Dequalinium chloride has been used primarily as antiseptic compounds, but recently has been investigated for its effects on specific targets, including muscarinic acetylcholine receptors. Here we investigated dequalinium chloride as an antagonist to α7 nicotinic acetylcholine receptors. The pharmacological properties of dequalinium were established using cell lines stably co-transfected with the calcium-permeable human α7 nicotinic acetylcholine receptors and its chaperone NACHO, calcium dye fluorescent measurements or a calcium-sensitive protein reporter, and patch clamp recording of ionic currents. Using calcium dye fluorescence plate reader measurements, we find dequalinium chloride is an antagonist of α7 nicotinic acetylcholine receptors with an IC50 of 672 nM in response to activation with 500 μM acetylcholine chloride and positive allosteric modulator PNU-120596. However, using a membrane-tethered GCAMP7s calcium reporter allowed detection of α7-mediated calcium flux in the absence of PNU-120596. Using this approach revealed an IC50 of 157 nM for dequalinium on 300 μM acetylcholine-evoked currents. Using patch clamp recordings with 300 μM acetylcholine chloride and 10 μM PNU-120596, we find lower concentrations are sufficient to block ionic currents, with IC50 of 120 nM for dequalinium chloride and 54 nM for the related UCL 1684 compound. In summary, we find that dequalinium chloride and UCL1684, which are generally used to block SK-type potassium channels, are also highly effective antagonists of α7 nicotinic acetylcholine receptors. This finding, in combination with previous studies of muscarinic acetylcholine receptors, clearly establishes dequalinium compounds within the class of general anti-cholinergic antagonists.
Collapse
Affiliation(s)
- Matthieu G Belanger-Coast
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Mei Zhang
- Sophion Bioscience, Inc, 400 Trade Center Drive, Suite, 6900, Woburn, MA, USA
| | - Vladislav Bugay
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Raul A Gutierrez
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Summer R Gregory
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Weifeng Yu
- Sophion Bioscience, Inc, 400 Trade Center Drive, Suite, 6900, Woburn, MA, USA
| | - Robert Brenner
- Department of Cellular and Integrative Physiology, University of Texas Health San Antonio, San Antonio, TX, USA.
| |
Collapse
|
4
|
Stingless Bee Propolis: New Insights for Anticancer Drugs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:2169017. [PMID: 34603594 PMCID: PMC8483912 DOI: 10.1155/2021/2169017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/16/2021] [Accepted: 09/03/2021] [Indexed: 12/16/2022]
Abstract
Natural products are important sources of biomolecules possessing antitumor activity and can be used as anticancer drug prototypes. The rich biodiversity of tropical and subtropical regions of the world provides considerable bioprospecting potential, including the potential of propolis produced by stingless bee species. Investigations of the potential of these products are extremely important, not only for providing a scientific basis for their use as adjuvants for existing drug therapies but also as a source of new and potent anticancer drugs. In this context, this article organizes the main studies describing the anticancer potential of propolis from different species of stingless bees with an emphasis on the chemical compounds, mechanisms of action, and cell death profiles. These mechanisms include apoptotic events; modulation of BAX, BAD, BCL2-L1 (BCL-2 like 1), and BCL-2; depolarization of the mitochondrial membrane; increased caspase-3 activity; poly (ADP-ribose) polymerase (PARP) cleavage; and cell death induction by necroptosis via receptor interacting protein kinase 1 (RIPK1) activation. Additionally, the correlation between compounds with antioxidant and anti-inflammatory potential is demonstrated that help in the prevention of cancer development. In summary, we highlight the important antitumor potential of propolis from stingless bees, but further preclinical and clinical trials are needed to explore the selectivity, efficacy, and safety of propolis.
Collapse
|
5
|
Wang H, Fang B, Peng B, Wang L, Xue Y, Bai H, Lu S, Voelcker NH, Li L, Fu L, Huang W. Recent Advances in Chemical Biology of Mitochondria Targeting. Front Chem 2021; 9:683220. [PMID: 34012953 PMCID: PMC8126688 DOI: 10.3389/fchem.2021.683220] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022] Open
Abstract
Mitochondria are vital subcellular organelles that generate most cellular chemical energy, regulate cell metabolism and maintain cell function. Mitochondrial dysfunction is directly linked to numerous diseases including neurodegenerative disorders, diabetes, thyroid squamous disease, cancer and septicemia. Thus, the design of specific mitochondria-targeting molecules and the realization of real-time acquisition of mitochondrial activity are powerful tools in the study and treatment of mitochondria dysfunction in related diseases. Recent advances in mitochondria-targeting agents have led to several important mitochondria chemical probes that offer the opportunity for selective targeting molecules, novel biological applications and therapeutic strategies. This review details the structural and physiological functional characteristics of mitochondria, and comprehensively summarizes and classifies mitochondria-targeting agents. In addition, their pros and cons and their related chemical biological applications are discussed. Finally, the potential biomedical applications of these agents are briefly prospected.
Collapse
Affiliation(s)
- Haiwei Wang
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Bin Fang
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Bo Peng
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, VIC, Australia
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Limin Wang
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Yufei Xue
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, VIC, Australia
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Hua Bai
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Shenci Lu
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Nicolas H. Voelcker
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, VIC, Australia
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, VIC, Australia
- Department of Materials Science & Engineering, Monash University, Clayton, VIC, Australia
| | - Lin Li
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Li Fu
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, China
| |
Collapse
|
6
|
Pan Y, Zhao S, Chen F. The potential value of dequalinium chloride in the treatment of cancer: Focus on malignant glioma. Clin Exp Pharmacol Physiol 2021; 48:445-454. [PMID: 33496065 DOI: 10.1111/1440-1681.13466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022]
Abstract
Dequalinium chloride has been known as one kind of antibiotic that displays a broad antimicrobial spectrum and has been clinically proven to be very safe. In recent years, studies have shown that dequalinium chloride can inhibit the growth of malignant tumours, and reports were mainly used for solid tumours. Glioblastoma is the most common malignant neuroepithelial tumour of the central nervous system in adults, and the prognosis of glioblastoma is poor as it has a high resistance to apoptosis. This review summarizes the current understanding of dequalinium chloride-induced cancer cell apoptosis and its potential role in glioblastoma resistance and progression. Particularly, we focus on dequalinium chloride as it exerts a wide range of anti-cancer activity through its ability to target and accumulate in the mitochondria, and it effectively inhibits the growth of glioblastoma cells in vitro and vivo. Dequalinium chloride is an inhibitor of XIAP and can also act as a mitochondrial targeting agent, which gives it an interesting perspective regarding recent advances in the treatment of malignant glioma.
Collapse
Affiliation(s)
- Yuehai Pan
- Department of Hand and foot surgery, The affiliated hospital of QingDao university, ShangDong, China
| | - Shuai Zhao
- Department of Anesthesiology, Bonn University, Bonn, Germany
| | - Fan Chen
- Department of Neurosurgery, The affiliated hospital of QingDao university, ShangDong, China
| |
Collapse
|
7
|
Bailly C. Medicinal applications and molecular targets of dequalinium chloride. Biochem Pharmacol 2021; 186:114467. [PMID: 33577890 DOI: 10.1016/j.bcp.2021.114467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/23/2022]
Abstract
For more than 60 years dequalinium chloride (DQ) has been used as anti-infective drug, mainly to treat local infections. It is a standard drug to treat bacterial vaginosis and an active ingredient of sore-throat lozenges. As a lipophilic bis-quaternary ammonium molecule, the drug displays membrane effects and selectively targets mitochondria to deplete DNA and to block energy production in cells. But beyond its mitochondriotropic property, DQ can interfere with the correct functioning of diverse proteins. A dozen of DQ protein targets have been identified and their implication in the antibacterial, antiviral, antifungal, antiparasitic and anticancer properties of the drug is discussed here. The anticancer effects of DQ combine a mitochondrial action, a selective inhibition of kinases (PKC-α/β, Cdc7/Dbf4), and a modulation of Ca2+-activated K+ channels. At the bacterial level, DQ interacts with different multidrug transporters (QacR, AcrB, EmrE) and with the transcriptional regulator RamR. Other proteins implicated in the antiviral (MPER domain of gp41 HIV-1) and antiparasitic (chitinase A from Vibrio harveyi) activities have been identified. DQ also targets α -synuclein oligomers to restrict protofibrils formation implicated in some neurodegenerative disorders. In addition, DQ is a typical bolaamphiphile molecule, well suited to form liposomes and nanoparticules useful for drug entrapment and delivery (DQAsomes and others). Altogether, the review highlights the many pharmacological properties and therapeutic benefits of this old 'multi-talented' drug, which may be exploited further. Its multiple sites of actions in cells should be kept in mind when using DQ in experimental research.
Collapse
|
8
|
Yu Y, Yang B, Yu J, Zhao G, Chen F. Dequalinium chloride inhibits the growth of human glioma cells in vitro and vivo: a study on molecular mechanism and potential targeted agents. Acta Neurochir (Wien) 2020; 162:1683-1690. [PMID: 32410120 DOI: 10.1007/s00701-020-04401-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/02/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Our current understanding of the role of dequalinium chloride (DECA) in the progression of glioma remains very limited. This study was aimed to investigate the effect of DECA on human glioma cell lines in vitro and vivo. METHODS The underlying molecular mechanism was analyzed for developing potential targeted agents. MTT assay, genomic DNA electrophoresis, DAPI staining, TUNEL staining, and wound scratch assay were performed to evaluate the effect of DECA on human glioma cell lines. Bioinformatics methods were used to screen the possible signaling pathway proteins, and the expression of these proteins and the corresponding mRNA was measured. RESULTS DECA significantly inhibited the growth and proliferation of human glioma cells. Screening of apoptosis-related proteins showed the mRNA expression level of 6 genes was significantly changed after DECA administration. CONCLUSION This study shows that DECA effectively inhibits the growth of glioma cells in vitro and vivo. DECA may promote glioma cell apoptosis by affecting the expression of NFKB2, HRAS, NF1, CBL, RAF1, and BCL-2 genes.
Collapse
Affiliation(s)
- Ying Yu
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, Jilin, 130021, China
| | - Bo Yang
- Department of Hematology, The second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Jinlu Yu
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, Jilin, 130021, China
| | - Gang Zhao
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, Jilin, 130021, China
| | - Fan Chen
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, Jilin, 130021, China.
| |
Collapse
|
9
|
Qian K, Chen H, Qu C, Qi J, Du B, Ko T, Xiang Z, Kandawa-Schulz M, Wang Y, Cheng Z. Mitochondria-targeted delocalized lipophilic cation complexed with human serum albumin for tumor cell imaging and treatment. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 23:102087. [DOI: 10.1016/j.nano.2019.102087] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 11/26/2022]
|
10
|
Novel Inducers of the Expression of Multidrug Efflux Pumps That Trigger Pseudomonas aeruginosa Transient Antibiotic Resistance. Antimicrob Agents Chemother 2019; 63:AAC.01095-19. [PMID: 31501142 DOI: 10.1128/aac.01095-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/03/2019] [Indexed: 01/13/2023] Open
Abstract
The study of the acquisition of antibiotic resistance (AR) has mainly focused on inherited processes, namely, mutations and acquisition of AR genes. However, inducible, noninheritable AR has received less attention, and most information in this field derives from the study of antibiotics as inducers of their associated resistance mechanisms. Less is known about nonantibiotic compounds or situations that can induce AR during infection. Multidrug resistance efflux pumps are a category of AR determinants characterized by the tight regulation of their expression. Their contribution to acquired AR relies in their overexpression. Here, we analyzed potential inducers of the expression of the chromosomally encoded Pseudomonas aeruginosa clinically relevant efflux pumps, MexCD-OprJ and MexAB-OprM. For this purpose, we developed a set of luxCDABE-based P. aeruginosa biosensor strains, which allows the high-throughput analysis of compounds able to modify the expression of these efflux pumps. Using these strains, we analyzed a set of 240 compounds present in Biolog phenotype microarrays. Several inducers of the expression of the genes that encode these efflux pumps were found. The study focused in dequalinium chloride, procaine, and atropine, compounds that can be found in clinical settings. Using real-time PCR, we confirmed that these compounds indeed induce the expression of the mexCD-oprJ operon. In addition, P. aeruginosa presents lower susceptibility to ciprofloxacin (a MexCD-OprJ substrate) when dequalinium chloride, procaine, or atropine are present. This study emphasizes the need to study compounds that can trigger transient AR during antibiotic treatment, a phenotype difficult to discover using classical susceptibility tests.
Collapse
|
11
|
Antineoplastic Activity and Curative Role of Avenanthramides against the Growth of Ehrlich Solid Tumors in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5162687. [PMID: 30755785 PMCID: PMC6348884 DOI: 10.1155/2019/5162687] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/20/2018] [Accepted: 11/11/2018] [Indexed: 12/16/2022]
Abstract
Interest is growing in finding natural sources of effective antitumor agents that generate fewer side effects than conventional chemotherapeutic drugs. Avenanthramides (Avns) are such compounds; these phenolic molecules naturally occur in oats and have antioxidant, anti-inflammatory, and antiproliferative effects making them worthy of further research. The aim of this study is to characterise Avns' curative ability and antineoplastic activity on solid-form Ehrlich tumors. For the study, 75 female mice were randomly and equally allocated to five groups (group 1-control, group 2-DMSO, group 3-positive control receiving Avns, group 4-mice with Ehrlich solid tumor, and group 5-Ehrlich solid tumor treated with Avns). Mice with Ehrlich solid tumors exhibit increased tumor volume; elevated expression of AFP, ALT, AST, Bcl2, CEA, cholesterol, creatinine, urea, MDA, PCNA, potassium, triglycerides, TNF-α, and NF-κB; and a concomitant decline in catalase, GSH, P53, and SOD. In the mice with Ehrlich tumors who received Avns, there appeared to be improvement in NF-κB TNF-α, tumor markers (AFP and CEA), electrolytes, liver and kidney function enzymes, and lipid profiles; reduced MDA level; improved antioxidant parameters; normalised liver protein, P53, and PCNA; and reduced Bcl2 expression. Pathological examination of tumor lesions also indicated improvement. These results suggest that Avns exhibit antineoplastic activity and possess antioxidant properties that enhance the antioxidant defence system, thus reducing the oxidative stress caused by Ehrlich solid tumors.
Collapse
|
12
|
Leanza L, Checchetto V, Biasutto L, Rossa A, Costa R, Bachmann M, Zoratti M, Szabo I. Pharmacological modulation of mitochondrial ion channels. Br J Pharmacol 2019; 176:4258-4283. [PMID: 30440086 DOI: 10.1111/bph.14544] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 10/15/2018] [Accepted: 10/22/2018] [Indexed: 12/17/2022] Open
Abstract
The field of mitochondrial ion channels has undergone a rapid development during the last three decades, due to the molecular identification of some of the channels residing in the outer and inner membranes. Relevant information about the function of these channels in physiological and pathological settings was gained thanks to genetic models for a few, mitochondria-specific channels. However, many ion channels have multiple localizations within the cell, hampering a clear-cut determination of their function by pharmacological means. The present review summarizes our current knowledge about the ins and outs of mitochondrial ion channels, with special focus on the channels that have received much attention in recent years, namely, the voltage-dependent anion channels, the permeability transition pore (also called mitochondrial megachannel), the mitochondrial calcium uniporter and some of the inner membrane-located potassium channels. In addition, possible strategies to overcome the difficulties of specifically targeting mitochondrial channels versus their counterparts active in other membranes are discussed, as well as the possibilities of modulating channel function by small peptides that compete for binding with protein interacting partners. Altogether, these promising tools along with large-scale chemical screenings set up to identify new, specific channel modulators will hopefully allow us to pinpoint the actual function of most mitochondrial ion channels in the near future and to pharmacologically affect important pathologies in which they are involved, such as neurodegeneration, ischaemic damage and cancer. LINKED ARTICLES: This article is part of a themed section on Mitochondrial Pharmacology: Featured Mechanisms and Approaches for Therapy Translation. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.22/issuetoc.
Collapse
Affiliation(s)
- Luigi Leanza
- Department of Biology, University of Padova, Padova, Italy
| | | | - Lucia Biasutto
- CNR Institute of Neurosciences, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Andrea Rossa
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Roberto Costa
- Department of Biology, University of Padova, Padova, Italy
| | | | - Mario Zoratti
- CNR Institute of Neurosciences, Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Ildiko Szabo
- Department of Biology, University of Padova, Padova, Italy.,CNR Institute of Neurosciences, Department of Biomedical Sciences, University of Padova, Padova, Italy
| |
Collapse
|
13
|
Bae Y, Jung MK, Mun JY, Mallick S, Song SJ, Kim DM, Ko KS, Han J, Choi JS. DQAsomes Nanoparticles Promote Osteogenic Differentiation of Human Adipose-derived Mesenchymal Stem Cells. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yoonhee Bae
- Department of Physiology; College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University; Busan 614-735 Korea
| | - Min Kyo Jung
- Department of Convergence Medicine; University of Ulsan College of Medicine & Asan Institute for Life Sciences, Asan Medical Center; Seoul South Korea
| | - Ji Young Mun
- Department of Biomedical Laboratory Science; College of Health Science, Eulji University; Seongnam 461-713 Korea
| | - Sudipta Mallick
- Department of Biochemistry; College of Natural Sciences, Chungnam National University; Daejeon 305-764 Korea
| | - Su Jeong Song
- Department of Biochemistry; College of Natural Sciences, Chungnam National University; Daejeon 305-764 Korea
| | - Dong Min Kim
- Department of Biochemistry; College of Natural Sciences, Chungnam National University; Daejeon 305-764 Korea
| | - Kyung Soo Ko
- Department of Internal Medicine; Sanggye Paik Hospital, Cardiovascular and Metabolic Disease Center, Inje University; Seoul 139-707 Korea
| | - Jin Han
- Department of Physiology; College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University; Busan 614-735 Korea
| | - Joon Sig Choi
- Department of Biochemistry; College of Natural Sciences, Chungnam National University; Daejeon 305-764 Korea
| |
Collapse
|
14
|
Bae Y, Jung MK, Song SJ, Green ES, Lee S, Park HS, Jeong SH, Han J, Mun JY, Ko KS, Choi JS. Functional nanosome for enhanced mitochondria-targeted gene delivery and expression. Mitochondrion 2017; 37:27-40. [PMID: 28669809 DOI: 10.1016/j.mito.2017.06.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 12/25/2022]
Abstract
Mitochondria dysfunction plays a role in many human diseases. Therapeutic techniques for these disorders require novel delivery systems that can specifically target and penetrate mitochondria. In this study, we report a novel nanosome composed of dequalinium-DOTAP-DOPE (1,2 dioleoyl-3-trimethylammonium-propane-1,2-dioleoyl-sn-glycero-3-phosphoethanolamine) (DQA80s) as a potential mitochondria-targeting delivery vector. The functional DQAsome, DQA80s, showed enhanced transfection efficiency compared to a vector DQAsomes in HeLa cells and dermal fibroblasts. In addition, DQA80s/pDNA complexes exhibited rapid escape from the endosome into the cytosol. We observed the delivery of pDNA to mitochondria in living cells using flow cytometry, confocal microscopy, and TME imaging. More specifically, we confirmed our results by co-localization of hmtZsGreen constructs to mitochondria when delivered via DQAsomes and DQA80s in living cells. The mitochondria-targeting DQAsomes and DQA80s induced mitochondrial dysfunction through depolarization of mitochondrial membrane potential. Our data demonstrate that DQA80s show promise for use as a mitochondria-targeted carrier system for treatment of mitochondria diseases in vivo.
Collapse
Affiliation(s)
- Yoonhee Bae
- Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Republic of Korea
| | - Min Kyo Jung
- Department of Life Sciences, Korea University, Seoul 136-701, Republic of Korea
| | - Su Jeong Song
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Eric S Green
- Salt Lake Community College, Salt Lake City, UT, USA
| | - Seulgi Lee
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Hyun-Sook Park
- Cell engineering for origin Research Center 46-21, Susong-dong, Jongno-gu, Seoul 110-140, Republic of Korea
| | - Seung Hun Jeong
- Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Republic of Korea
| | - Jin Han
- Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Republic of Korea
| | - Ji Young Mun
- Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Seongnam, Gyeonggi-Do 461-713, Republic of Korea; BK21 Plus Program, Department of Senior Healthcare, Graduate School, Eulji University, Republic of Korea.
| | - Kyung Soo Ko
- Department of Internal Medicine, Sanggye Paik Hospital, Cardiovascular and Metabolic Disease Center, Inje University, Seoul 139-707, Republic of Korea.
| | - Joon Sig Choi
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Republic of Korea.
| |
Collapse
|
15
|
Kardashinsky M, Lengkeek N, Rendina LM. Synthesis and stability studies of Ga-67 labeled phosphonium salts. J Labelled Comp Radiopharm 2016; 60:4-11. [DOI: 10.1002/jlcr.3448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/30/2016] [Indexed: 11/05/2022]
Affiliation(s)
| | - Nigel Lengkeek
- ANSTO Life Sciences, Australian Nuclear Science and Technology Organisation; NSW 2232 Australia
| | - Louis M. Rendina
- School of Chemistry; The University of Sydney; Sydney NSW 2006 Australia
| |
Collapse
|
16
|
Bae Y, Green ES, Kim GY, Song SJ, Mun JY, Lee S, Park JI, Park JS, Ko KS, Han J, Choi JS. Dipeptide-functionalized polyamidoamine dendrimer-mediated apoptin gene delivery facilitates apoptosis of human primary glioma cells. Int J Pharm 2016; 515:186-200. [PMID: 27732896 DOI: 10.1016/j.ijpharm.2016.09.083] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 09/23/2016] [Accepted: 09/29/2016] [Indexed: 02/07/2023]
Abstract
Glioblastoma multiform (GBM) is the most frequent and aggressive form of brain tumors in adults. However, the development of more efficient and safe nonviral vector gene therapy represents a promising therapeutic approach, using a tumor-specific killer gene, named apoptin. In this study, we describe the efficacy of non-viral gene delivery vectors, the amino acid-conjugated PAMAM derivatives (PAMAM-H-R and PAMAM-H-K) in delivering a therapeutic gene, displaying affinity toward human primary glioma cells (GBL-14 cells) and dermal fibroblasts. We analyzed transfection efficiency, using luciferase (Luci) and a pDNA encoding for enhanced fluorescent protein (EGFP), and cytotoxicity in both cells. The results show that transfection efficiency of PAMAM-H-R improved compared to native PAMAM dendrimer, but cytotoxicity of PAMAM-H-R and PAMAM-H-K were very low. We treated both cells with a polyplex formation of PAMAM-H-R or PAMAM-H-K/apoptin, and analyzed their cellular uptake and localization by flow cytometry and confocal microscopy. Furthermore, we analyzed the endosomal escape effect using TEM images, and found that PAMAM-H-R showed very fast escape from endosome to the cytosol. Caspase 3 activity assay, cell cycle distribution, and JC-1 analysis showed apoptosis induced by apoptin in GBL-14 cells. This indicates that PAMAM-H-R can be a potential nonviral vector gene delivery carrier for brain tumor therapy. The present study demonstrates that PAMAM-H-R/apoptin gene polyplex can be used as an effective therapeutic candidate for GBM due to its selective induction of apoptosis in primary glioma cells as a potential nonviral gene delivery carrier for brain tumor therapy.
Collapse
Affiliation(s)
- Yoonhee Bae
- Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Republic of Korea
| | - Eric S Green
- Salt Lake Community College, Salt Lake City, UT, USA
| | - Goo-Young Kim
- Section on Cellular Differentiation, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Su Jeong Song
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Ji Young Mun
- Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Republic of Korea
| | - Sunray Lee
- Cell Engineering for Origin Research Center 46-21, Susong-dog, Jongno-gu, Seoul 110-140, Republic of Korea
| | - Jong-Il Park
- Chungnam National University School of Medicine, Daejeon 301-747, Republic of Korea
| | - Jong-Sang Park
- School of Chemistry, Seoul National University, Seoul 151-742, Republic of Korea
| | - Kyung Soo Ko
- Department of Internal Medicine, Sanggye Paik Hospital, Cardiovascular and Metabolic Disease Center, Inje University, Seoul 139-707, Republic of Korea
| | - Jin Han
- Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan 614-735, Republic of Korea.
| | - Joon Sig Choi
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 305-764, Republic of Korea.
| |
Collapse
|
17
|
Salem ML, Shoukry NM, Teleb WK, Abdel-Daim MM, Abdel-Rahman MA. In vitro and in vivo antitumor effects of the Egyptian scorpion Androctonus amoreuxi venom in an Ehrlich ascites tumor model. SPRINGERPLUS 2016; 5:570. [PMID: 27247867 PMCID: PMC4864766 DOI: 10.1186/s40064-016-2269-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/03/2016] [Indexed: 02/07/2023]
Abstract
Scorpion venom is a highly complex mixture of about 100-700 different components, where peptides are the major constituents with various biological and pharmacological properties including anticancer activities. In this study, anticancer efficacy of the venom of the Egyptian scorpion Androctonus amoreuxi has been evaluated. In vitro, the human breast cancer MCF-7 cell line was treated with the venom and the IC50 was estimated. In vivo studies, Ehrlich ascites carcinoma (EAC) cells were inoculated into CD-1 mice intraperitoneally to form liquid tumor or subcutaneously to form solid tumor and then treated with intraperitoneal injection with venom (0.22 mg/kg) every other day. The total tumor cells in the ascitic fluid and the size of the solid tumor were assessed after 14 and 30 days, respectively. In addition, the mean survival time (MST), body weight, tumor volume, PCV, viability of tumor cells, CBC, AST, ALP, creatinine, oxidative stress biomarkers (GSH, MDA, PCC), tumor marker Ki67, growth factor VEGF and caspase-3 were measured in normal control, EAC control and venom-treated groups (n = 6). Treatment with venom induced anti-tumor effects against liquid and in solid tumors as indicated by a significant (P < 0.05) reduction in tumor volume/size, count of viable EAC cells, expression of Ki67 and VEGF as well as by remarkable increases in MST and caspase-3 expression as compared to non-treated group. Interestingly, the venom restored the altered hematological and biochemical parameters of tumor-bearing animals and significantly increased their life span. These data indicate to (1) the cytotoxic potential effects of A. amoreuxi on tumor cells via anti-proliferative, apoptotic and anti-angiogenic activities; (2) opening a new avenue for further studies on the anti-cancer effects of this agent.
Collapse
Affiliation(s)
- Mohamed L. Salem
- />Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Nahla M. Shoukry
- />Zoology Department, Faculty of Science, Suez University, Suez, Egypt
| | - Wafaa K. Teleb
- />Zoology Department, Faculty of Science, Suez University, Suez, Egypt
| | - Mohamed M. Abdel-Daim
- />Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522 Egypt
| | | |
Collapse
|
18
|
Wang H, Yin H, Yan F, Sun M, Du L, Peng W, Li Q, Feng Y, Zhou Y. Folate-mediated mitochondrial targeting with doxorubicin-polyrotaxane nanoparticles overcomes multidrug resistance. Oncotarget 2015; 6:2827-42. [PMID: 25605018 PMCID: PMC4413620 DOI: 10.18632/oncotarget.3090] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 12/25/2014] [Indexed: 01/01/2023] Open
Abstract
Resistance to treatment with anticancer drugs is a significant obstacle and a fundamental cause of therapeutic failure in cancer therapy. Functional doxorubicin (DOX) nanoparticles for targeted delivery of the classical cytotoxic anticancer drug DOX to tumor cells, using folate-terminated polyrotaxanes along with dequalinium, have been developed and proven to overcome this resistance due to specific molecular features, including a size of approximately 101 nm, a zeta potential of 3.25 mV and drug-loading content of 18%. Compared with free DOX, DOX hydrochloride, DOX nanoparticles, and targeted DOX nanoparticles, the functional DOX nanoparticles exhibited the strongest anticancer efficacy in vitro and in the drug-resistant MCF-7/ Adr (DOX) xenograft tumor model. More specifically, the nanoparticles significantly increased the intracellular uptake of DOX, selectively accumulating in mitochondria and the endoplasmic reticulum after treatment, with release of cytochrome C as a result. Furthermore, the caspase-9 and caspase-3 cascade was activated by the functional DOX nanoparticles through upregulation of the pro-apoptotic proteins Bax and Bid and suppression of the antiapoptotic protein Bcl-2, thereby enhancing apoptosis by acting on the mitochondrial signaling pathways. In conclusion, functional DOX nanoparticles may provide a strategy for increasing the solubility of DOX and overcoming multidrug-resistant cancers.
Collapse
Affiliation(s)
- He Wang
- Department of Oncology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Henghui Yin
- Center of Breast Disease, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Fengjiao Yan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Mingna Sun
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lingran Du
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Peng
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qiuli Li
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yinghong Feng
- Department of Pharmacology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Yi Zhou
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
19
|
Antimicrobial, Antioxidant, Anti-Inflammatory, and Cytotoxic Activities of Propolis from the Stingless Bee Tetragonisca fiebrigi (Jataí). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:296186. [PMID: 26185516 PMCID: PMC4491730 DOI: 10.1155/2015/296186] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/03/2015] [Accepted: 06/03/2015] [Indexed: 12/19/2022]
Abstract
Propolis from stingless bees Tetragonisca fiebrigi found in Brazil is used in folk medicine by their nutritional and therapeutic properties. However, there are no scientific records evidencing such properties. The present study was designed to investigate the chemical composition and the biological properties of propolis from T. fiebrigi. For this, the chemical composition of the ethanol extract of propolis (EEP) was determined by GC-MS and presented phenolic compounds, alcohol, and terpenes as its major class compounds. The antimicrobial activity was accessed in gram-positive and gram-negative bacteria and in fungi, isolated from different biological fluids and reference strains. The EEP was active against all microorganisms and showed antioxidant activity by scavenging free radicals, inhibiting hemolysis and lipid peroxidation in human erythrocytes incubated with an oxidizing agent. The anti-inflammatory potential of the EEP was confirmed by inhibition of the hyaluronidase enzyme. The cytotoxic activity was concentration-dependent against K562 cells, with a predominance of death by necrosis. Taken together, these results show that propolis from T. fiebrigi has important therapeutic activities, which suggest its potential application in the pharmaceutical industry, as well as in health foods, beverages, and nutritional supplements.
Collapse
|
20
|
Thiosemicarbazone p-Substituted Acetophenone Derivatives Promote the Loss of Mitochondrial Δψ, GSH Depletion, and Death in K562 Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:394367. [PMID: 26075034 PMCID: PMC4436459 DOI: 10.1155/2015/394367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 04/03/2015] [Indexed: 11/24/2022]
Abstract
A series of thiosemicarbazone (TSC) p-substituted acetophenone derivatives were synthesized and chemically characterized. The p-substituents appended to the phenyl group of the TSC structures were hydrogen, fluor, chlorine, methyl, and nitro, producing compounds named TSC-H, TSC-F, TSC-Cl, TSC-Me, and TSC-NO2, respectively. The TSC compounds were evaluated for their capacity to induce mitochondrial permeability, to deplete mitochondrial thiol content, and to promote cell death in the K562 cell lineage using flow cytometry and fluorescence microscopy. TSC-H, TSC-F, and TSC-Cl exhibited a bell-shaped dose-response curve for the induction of apoptosis in K562 cells due to the change from apoptosis to necrosis as the principal mechanism of cell death at the highest tested doses. TSC-Me and TSC-NO2 exhibited a typical dose-response profile, with a half maximal effective concentration of approximately 10 µM for cell death. Cell death was also evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, which revealed lower toxicity of these compounds for peripheral blood mononuclear cells than for K562 cells. The possible mechanisms leading to cell death are discussed based on the observed effects of the new TSC compounds on the cellular thiol content and on mitochondrial bioenergetics.
Collapse
|
21
|
Gañán-Gómez I, Estañ-Omaña MC, Sancho P, Aller P, Boyano-Adánez MC. Mechanisms of resistance to apoptosis in the human acute promyelocytic leukemia cell line NB4. Ann Hematol 2014; 94:379-92. [PMID: 25322811 DOI: 10.1007/s00277-014-2237-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 10/07/2014] [Indexed: 12/31/2022]
Abstract
Current frontline therapies have improved overall survival in acute promyelocytic leukemia (APL) patients to exceptional rates; however, relapse is still a problem among high-risk and old patients. Therefore, the development of better and safer therapies continues to be a goal in the treatment of this disease. In the present work, we examined three different pathways that hinder cell death in the APL cell line NB4, shedding light on the mechanisms that underlie resistance to apoptosis in these cells and that might help provide them with a proliferative advantage. We found that the proteasome inhibitor MG-132 specifically induces in NB4 cells an Nrf2-mediated antioxidant response which counteracts mitochondria-dependent apoptosis induced by the lipophilic cation dequalinium. More importantly, we also demonstrated that high basal autophagy levels and the gain-of-function of mutant p53 are intrinsic mechanisms of resistance to apoptosis in this cell line. According to our results, the pharmacological inhibition of autophagy and p53 mutants are useful tools to explore resistance to apoptosis in APL and other types of cancer and could be the bases of new therapeutic approaches that improve the efficiency and allow dose reduction of the current treatments.
Collapse
MESH Headings
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Antioxidants/metabolism
- Apoptosis/drug effects
- Apoptosis/genetics
- Cell Line, Tumor
- Cell Nucleus/drug effects
- Cell Nucleus/genetics
- Cell Nucleus/metabolism
- Dequalinium/administration & dosage
- Dequalinium/pharmacology
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm/genetics
- Gene Expression Regulation, Leukemic/drug effects
- HL-60 Cells
- Humans
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Leupeptins/administration & dosage
- Leupeptins/pharmacology
- Protein Transport/drug effects
- Tumor Suppressor Protein p53/metabolism
Collapse
Affiliation(s)
- I Gañán-Gómez
- Department of System Biology, Unit of Biochemistry and Molecular Biology, Faculty of Medicine and Health Sciences, University of Alcalá (UAH), Carretera Madrid-Barcelona Km 33.6 s/n, 28871, Alcalá de Henares, Madrid, Spain
| | | | | | | | | |
Collapse
|
22
|
García-Pérez AI, Galeano E, Nieto E, Estañ MC, Sancho P. Dequalinium induces cytotoxicity in human leukemia NB4 cells by downregulation of Raf/MEK/ERK and PI3K/Akt signaling pathways and potentiation of specific inhibitors of these pathways. Leuk Res 2014; 38:795-803. [DOI: 10.1016/j.leukres.2014.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/15/2014] [Accepted: 01/19/2014] [Indexed: 02/06/2023]
|
23
|
Wang J, Xiang C, Tian FF, Xu ZQ, Jiang FL, Liu Y. Investigating the interactions of a novel anticancer delocalized lipophilic cation and its precursor compound with human serum albumin. RSC Adv 2014. [DOI: 10.1039/c3ra46997b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
24
|
Pierroz V, Joshi T, Leonidova A, Mari C, Schur J, Ott I, Spiccia L, Ferrari S, Gasser G. Molecular and cellular characterization of the biological effects of ruthenium(II) complexes incorporating 2-pyridyl-2-pyrimidine-4-carboxylic acid. J Am Chem Soc 2012. [PMID: 23181418 DOI: 10.1021/ja307288s] [Citation(s) in RCA: 255] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A great majority of the Ru complexes currently studied in anticancer research exert their antiproliferative activity, at least partially, through ligand exchange. In recent years, however, coordinatively saturated and substitutionally inert polypyridyl Ru(II) compounds have emerged as potential anticancer drug candidates. In this work, we present the synthesis and detailed characterization of two novel inert Ru(II) complexes, namely, [Ru(bipy)(2)(Cpp-NH-Hex-COOH)](2+) (2) and [Ru(dppz)(2)(CppH)](2+) (3) (bipy = 2,2'-bipyridine; CppH = 2-(2'-pyridyl)pyrimidine-4-carboxylic acid; Cpp-NH-Hex-COOH = 6-(2-(pyridin-2-yl)pyrimidine-4-carboxamido)hexanoic acid; dppz = dipyrido[3,2-a:2',3'-c]phenazine). 3 is of particular interest as it was found to have IC(50) values comparable to cisplatin, a benchmark standard in the field, on three cancer cell lines and a better activity on one cisplatin-resistant cell line than cisplatin itself. The mechanism of action of 3 was then investigated in detail and it could be demonstrated that, although 3 binds to calf-thymus DNA by intercalation, the biological effects that it induces did not involve a nuclear DNA related mode of action. On the contrary, confocal microscopy colocalization studies in HeLa cells showed that 3 specifically targeted mitochondria. This was further correlated by ruthenium quantification using High-resolution atomic absorption spectrometry. Furthermore, as determined by two independent assays, 3 induced apoptosis at a relatively late stage of treatment. The generation of reactive oxygen species could be excluded as the cause of the observed cytotoxicity. It was demonstrated that the mitochondrial membrane potential in HeLa was impaired by 3 as early as 2 h after its introduction and even more with increasing time.
Collapse
Affiliation(s)
- Vanessa Pierroz
- Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Sancho P, Galeano E, Estañ MC, Gañán-Gómez I, Boyano-Adánez MDC, García-Pérez AI. Raf/MEK/ERK signaling inhibition enhances the ability of dequalinium to induce apoptosis in the human leukemic cell line K562. Exp Biol Med (Maywood) 2012; 237:933-42. [DOI: 10.1258/ebm.2012.011423] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Delocalized lipophilic cations, such as dequalinium (DQA), selectively accumulate in mitochondria and display anticancer activity in cells from different malignancies. Previous studies in K562 human leukemic cells indicate that DQA causes cell damage as a consequence of an early disturbance in the mitochondrial function, inducing oxidative stress. These cells turned out to be resistant to apoptosis and died by necrosis when treated with high DQA concentrations (20 μmol/L) for long time periods (48 h). Resistance of K562 cells to DQA-induced apoptosis could be eliminated by inhibition of the kinase activity of the Bcr-Abl protein with imatinib. In this paper, we have studied the effect of DQA on the Raf/MEK/ERK1/2 and PI3K/Akt signal transduction pathways in K562 cells. Our data suggest a DQA downregulatory activity on both ERK1/2 and PI3K protein kinase activity supporting an interaction between both proteins. Moreover, inhibition of ERK1/2 with U0126 enhanced the ability of DQA to potentiate imatinib-induced apoptosis, suggesting a role of the Raf/MEK/ERK pathway and the Bcr-Abl tyrosine kinase in the K562 cell survival. This study contributes to a better understanding of the action mechanism of DQA on K562 cells and encourages the study of DQA in combination with other agents for improving the efficacy of targeted therapies and overcoming resistance to chemotherapeutic agents.
Collapse
Affiliation(s)
- Pilar Sancho
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
| | - Eva Galeano
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
- Centro de Investigación Médica Aplicada, Universidad de Navarra, Avda. Pío XII 55, 31008 Pamplona
| | - María Cristina Estañ
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Irene Gañán-Gómez
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
| | - María del Carmen Boyano-Adánez
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
| | - Ana Isabel García-Pérez
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid
| |
Collapse
|
26
|
da Mota MF, Benfica PL, Batista AC, Martins FS, de Paula JR, Valadares MC. Investigation of Ehrlich ascites tumor cell death mechanisms induced by Synadenium umbellatum Pax. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:319-329. [PMID: 21549815 DOI: 10.1016/j.jep.2011.04.055] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 04/18/2011] [Accepted: 04/19/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Synadenium umbellatum Pax. is widely found in South America and empirically used in Brazil for the treatment of several diseases, mainly cancer. The aim of the study was to investigate cell death mechanisms induced by Synadenium umbellatum Pax. using Ehrlich ascites tumor (EAT) cells, as well as the myelotoxicity potential of this plant. MATERIALS AND METHODS S. umbellatum cytotoxicity was evaluated in EAT cells by trypan blue exclusion and MTT reduction test and the mechanisms involved in EAT cell death were investigated by light and fluorescence microscopy, flow cytometry and immunocytochemistry. Investigation of S. umbellatum myelotoxicity was performed by clonogenic assay of colony forming unit- granulocyte macrophage (CFU-GM). RESULTS AND CONCLUSION Our results demonstrated that S. umbellatum decreased the viability of EAT cells using both methods. Morphological analyses revealed that S. umbellatum-treatment induced EAT cell death by apoptotic pathway. We demonstrated the occurrence of reactive oxygen species (ROS) overgeneration, increased intracellular Ca(2+) concentration, alteration in mitochondrial membrane potential, phosphatydylserine externalization, and activation of caspases 3, 8, and 9. However, S. umbellatum produced myelotoxicity in bone marrow cells in a concentration-dependent manner. In comparison to EAT cells, the effects of S. umbellatum in bone marrow cells were 8-fold lower. Taken together, our results showed that S. umbellatum induced apoptosis in EAT cells at several levels and seems more toxic to tumor cells than to normal bone marrow cells.
Collapse
MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/toxicity
- Apoptosis/drug effects
- Calcium/metabolism
- Carcinoma, Ehrlich Tumor/metabolism
- Carcinoma, Ehrlich Tumor/pathology
- Caspase 3/metabolism
- Caspase 8/metabolism
- Caspase 9/metabolism
- Cell Cycle/drug effects
- Cell Shape/drug effects
- Cell Survival/drug effects
- Chromatography, High Pressure Liquid
- Dose-Response Relationship, Drug
- Euphorbiaceae
- Flow Cytometry
- Granulocyte-Macrophage Progenitor Cells/drug effects
- Granulocyte-Macrophage Progenitor Cells/pathology
- Immunohistochemistry
- Membrane Potential, Mitochondrial/drug effects
- Mice
- Microscopy, Fluorescence
- Oxidative Stress/drug effects
- Phosphatidylserines/metabolism
- Plant Components, Aerial
- Plants, Medicinal
- Reactive Oxygen Species/metabolism
- Tumor Cells, Cultured
Collapse
Affiliation(s)
- Mariana Flavia da Mota
- Laboratório de Farmacologia e Toxicologia Celular, Faculdade de Farmácia, Universidade Federal de Goiás, UFG, Goiânia, GO, Brazil
| | | | | | | | | | | |
Collapse
|
27
|
Yu Y, Wang ZH, Zhang L, Yao HJ, Zhang Y, Li RJ, Ju RJ, Wang XX, Zhou J, Li N, Lu WL. Mitochondrial targeting topotecan-loaded liposomes for treating drug-resistant breast cancer and inhibiting invasive metastases of melanoma. Biomaterials 2011; 33:1808-20. [PMID: 22136714 DOI: 10.1016/j.biomaterials.2011.10.085] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 11/10/2011] [Indexed: 10/15/2022]
Abstract
Multidrug resistance and cancer metastases are two obstacles to a successful chemotherapy and metastases are closely associated with drug resistance. Mitochondrial targeting topotecan-loaded liposomes have been developed to overcome this resistance and resistance-related metastases. Investigations were performed on breast cancer MCF-7 and resistant MCF-7/adr cells, MCF-7 and resistant MCF-7/adr tumor spheroids, resistant MCF-7/adr cell xenografts in nude mice, and a naturally resistant B16 melanoma metastatic model in nude mice. The mitochondrial targeting topotecan-loaded liposomes were approximately 64 nm in size, and exhibited the strongest inhibitory effects on MCF-7 cells and resistant MCF-7/adr cells. Mitochondrial targeting effects were demonstrated by co-localization in mitochondria, enhanced drug content in mitochondria, dissipated mitochondrial membrane potential, opening of mitochondrial permeability transition pores, release of cytochrome C, and activation of caspase 9 and 3. The targeting liposomes had a stronger inhibitory effect on the resistant tumor spheroids in vitro, enhanced accumulation in resistant MCF-7/adr cell xenografts in mice, as well as being very effective on resistant MCF-7/adr cell xenografts in mice, and having a marked anti-metastastic effect on the naturally resistant B16 melanoma metastatic model in mice. In conclusion, mitochondrial targeting topotecan-loaded liposomes could be a promising strategy for treating resistant cancers and resistance-related metastases.
Collapse
Affiliation(s)
- Yang Yu
- State Key Laboratory of Natural and Biomimetic Drugs, and School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Tischer M, Pradel G, Ohlsen K, Holzgrabe U. Quaternary ammonium salts and their antimicrobial potential: targets or nonspecific interactions? ChemMedChem 2011; 7:22-31. [PMID: 22113995 DOI: 10.1002/cmdc.201100404] [Citation(s) in RCA: 213] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 10/28/2011] [Indexed: 11/07/2022]
Abstract
For more than 50 years dequalinium chloride has been used successfully as an antiseptic drug and disinfectant, particularly for clinical purposes. Given the success of dequalinium chloride, several series of mono- and bisquaternary ammonium compounds have been designed and reported to have improved antimicrobial activity. Furthermore, many of them exhibit high activity against mycobacteria and protozoa, especially against plasmodia. This review discusses the structure-activity relationships and the modes of action of the various series of (bis)quaternary ammonium compounds.
Collapse
Affiliation(s)
- Maximilian Tischer
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Würzburg, Germany
| | | | | | | |
Collapse
|
29
|
Abstract
Inhibitor of apoptosis proteins (IAPs) regulate the activity of caspases in apoptosis. The human X chromosome-encoded IAP (XIAP) is one of the more potent members of the IAP family and it has been described as a central regulator of apoptosis. Thus, molecules that inhibit XIAP could offer therapeutic opportunities to treat unwanted apoptosis inhibition. In the present study we have applied the selective optimization of side activities (SOSA) approach to the discovery of XIAP inhibitors. In this sense, we have identified dequalinium hydrochloride (Dq) as an inhibitor of the XIAP/caspase-3 interaction both in vitro and in cellular assays.
Collapse
|
30
|
Wang XX, Li YB, Yao HJ, Ju RJ, Zhang Y, Li RJ, Yu Y, Zhang L, Lu WL. The use of mitochondrial targeting resveratrol liposomes modified with a dequalinium polyethylene glycol-distearoylphosphatidyl ethanolamine conjugate to induce apoptosis in resistant lung cancer cells. Biomaterials 2011; 32:5673-87. [DOI: 10.1016/j.biomaterials.2011.04.029] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Accepted: 04/10/2011] [Indexed: 12/20/2022]
|
31
|
Dequalinium induces human leukemia cell death by affecting the redox balance. Leuk Res 2011; 35:1395-401. [PMID: 21477862 DOI: 10.1016/j.leukres.2011.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 02/23/2011] [Accepted: 03/09/2011] [Indexed: 12/29/2022]
Abstract
Dequalinium, an amphiphilic quinolinium derivative, selectively accumulates in mitochondria and displays anticancer activity in cells from different malignancies. Previous studies indicate a differential DQA-induced cytotoxicity in NB4 and K562 human leukemia cells as a consequence of an early disturbance in mitochondrial function. Results in this paper show that DQA induces a concentration-dependent oxidative stress by decreasing GSH level and increasing ROS in a cell type specific way. Inhibitors of the JNK and p38 stress regulated kinases potentiate DQA-induced NB4 cell death suggesting a protective function for these enzymes. K562 cells with relatively high GSH levels remained resistant to DQA action.
Collapse
|
32
|
Smith KM, Datti A, Fujitani M, Grinshtein N, Zhang L, Morozova O, Blakely KM, Rotenberg SA, Hansford LM, Miller FD, Yeger H, Irwin MS, Moffat J, Marra MA, Baruchel S, Wrana JL, Kaplan DR. Selective targeting of neuroblastoma tumour-initiating cells by compounds identified in stem cell-based small molecule screens. EMBO Mol Med 2011; 2:371-84. [PMID: 20721990 PMCID: PMC3377336 DOI: 10.1002/emmm.201000093] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Neuroblastoma (NB) is the most deadly extra-cranial solid tumour in children necessitating an urgent need for effective and less toxic treatments. One reason for the lack of efficacious treatments may be the inability of existing drugs to target the tumour-initiating or cancer stem cell population responsible for sustaining tumour growth, metastases and relapse. Here, we describe a strategy to identify compounds that selectively target patient-derived cancer stem cell-like tumour-initiating cells (TICs) while sparing normal paediatric stem cells (skin-derived precursors, SKPs) and characterize two therapeutic candidates. DECA-14 and rapamycin were identified as NB TIC-selective agents. Both compounds induced TIC death at nanomolar concentrations in vitro, significantly reduced NB xenograft tumour weight in vivo, and dramatically decreased self-renewal or tumour-initiation capacity in treated tumours. These results demonstrate that differential drug sensitivities between TICs and normal paediatric stem cells can be exploited to identify novel, patient-specific and potentially less toxic therapies.
Collapse
Affiliation(s)
- Kristen M Smith
- Cell Biology Program and James Burrell Laboratories, The Hospital for Sick Children, Toronto, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Gurovic MSV, Lanza AMD, Adánez MDCB, Omaña MCE, Gómez IG, Murray AP, López PS. Cytotoxic effects induced by combination of heliantriol B2 and dequalinium against human leukemic cell lines. Phytother Res 2010; 25:603-10. [PMID: 20981868 DOI: 10.1002/ptr.3310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 08/14/2010] [Accepted: 09/07/2010] [Indexed: 11/06/2022]
Abstract
Natural occurring compounds are considered an important source of antitumoral agents. In the present study, the cytotoxic potential of three pentacyclic triterpenes isolated from Chuquiraga erinacea (Asteraceae), against the human leukemic cell lines NB4 and K562 was assessed. Heliantriol B2 (HB2) showed the highest cytotoxic activity after 24 h treatment showing IC(50) values of 1.98 ± 0.12 µm and 3.52 ± 0.14 µm for NB4 and K562 cells, respectively. This activity was higher than that of the reference compound dequalinium (DQA). Apoptosis and necrosis induced by HB2 in both NB4 and K562 cell lines were analysed by Annexin V/PI labeling. Mitochondrial alterations including reactive oxygen species (ROS) production and mitochondrial transmembrane potential (ΔΨm) were also tested. The results demonstrated that HB2 induced cell death by apoptosis and necrosis and showed enhanced cytotoxic effects in combination with DQA. Besides, HB2 induced ROS overproduction in NB4 cells and a slight decrease of ΔΨm. Consequently, our findings prompt further studies on the HB2 mechanism of action and its selectivity to tumor cells in order to assess the potential of HB2 as an agent for cancer treatment.
Collapse
Affiliation(s)
- M Soledad Vela Gurovic
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain.
| | | | | | | | | | | | | |
Collapse
|
34
|
Morrison DE, Issa F, Bhadbhade M, Groebler L, Witting PK, Kassiou M, Rutledge PJ, Rendina LM. Boronated phosphonium salts containing arylboronic acid, closo-carborane, or nido-carborane: synthesis, X-ray diffraction, in vitro cytotoxicity, and cellular uptake. J Biol Inorg Chem 2010; 15:1305-18. [DOI: 10.1007/s00775-010-0690-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 07/08/2010] [Indexed: 10/19/2022]
|
35
|
Qu B, Wang W, Tan Z, Li D, Wan J, Sun J, Cheng K, Luo H. Diethyl (6-amino-9H-purin-9-yl) methylphosphonate induces apoptosis and cell cycle arrest in hepatocellular carcinoma BEL-7402 cells: Role of reactive oxygen species. Free Radic Res 2010; 44:881-90. [PMID: 20528564 DOI: 10.3109/10715762.2010.487868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The primary purpose of this work was to study the mechanism of the anti-proliferation activity of compound diethyl (6-amino-9H-purin-9-yl) methylphosphonate (DaMP), a novel acyclic nucleoside phosphonate. Using cell survival MTT assay, flow cytometry analysis, DNA laddering, DCF fluorescence detection and caspases assays, this study investigated the effects of this compound on cell apoptosis, cell cycle regulation and reactive oxygen species in human hepatocarcinoma BEL-7402 cell lines. Exposure to DaMP at 80 microM for 24 h, BEL-7402 cells displayed a marked retardation of S-phase progression, leading to a severe perturbation of normal cell cycle. In addition, DaMP also significantly inhibited cell proliferation by inducing apoptosis, disrupting DNA synthesis and increasing the activities of caspase-3 and -9, while the antioxidants could significantly inhibit these effects. This study was the first to demonstrate that DaMP could induce apoptosis and cell cycle arrest by producing reactive oxygen species and activating caspase-3 and -9.
Collapse
Affiliation(s)
- Bin Qu
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, PR China.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Dequalinium induces apoptosis in peripheral blood mononuclear cells isolated from human chronic lymphocytic leukemia. Invest New Drugs 2010; 29:1156-63. [PMID: 20524037 DOI: 10.1007/s10637-010-9454-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Accepted: 05/07/2010] [Indexed: 10/19/2022]
Abstract
B-cell chronic lymphocytic leukemia (B-CLL) is an abnormal neoplasic proliferation of B cells, which accumulate mainly in the bone marrow and blood preventing both B cells development in the lymph nodes and the ability to fight against infection. The antitumor agents used in chemotherapy are aimed at inducing malignant cell death, thus limiting the growth and spreading of these cells. However, the lack of specificity for tumor cells exhibited by these agents causes undesirable side effects that have led to the investigation of new therapeutic strategies designed to specifically target malignant cells and thus trigger selective cell destruction. Dequalinium (DQA) is an antitumoral agent that selectively accumulates in the mitochondria and has been shown to display anticancer activity in cells from different malignancies. In the present study, the DQA-induced cytotoxicity in B-CLL cells was analyzed by measuring cell viability and cell death, either by necrosis or apoptosis. Our results support the importance of DQA as a selective and potential antileukemic drug with a higher cytotoxic effect on peripheral blood mononuclear cells from B-CLL patients than in those from healthy donors and encourage the performance of further studies in combination with other agents.
Collapse
|
37
|
Ioppolo JA, Kassiou M, Rendina LM. Water-soluble phosphonium salts containing 1,12-dicarba-closo-dodecaborane(12). Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.112] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
38
|
Hurren R, Beheshti Zavareh R, Dalili S, Wood T, Rose D, Chang H, Jamal N, Messner H, Batey RA, Schimmer AD. A novel diquinolonium displays preclinical anti-cancer activity and induces caspase-independent cell death. Apoptosis 2008; 13:748-55. [PMID: 18415680 DOI: 10.1007/s10495-008-0209-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Quinolines are a class of chemical compounds with emerging anti-cancer properties. Here, we tested the activity of series of quinolines and quinoline-like molecules for anti-cancer activity and identified a novel diquinoline, 1-methyl-2-[3-(1-methyl-1,2-dihydroquinolin-2-yliden)prop-1-enyl]quinolinium iodide (Q(2)). Q(2 )induced cell death in leukemia, myeloma, and solid tumor cell lines with LD50s in the low to submicromolar range. Moreover, Q(2) induced cell death in primary acute myeloid leukemia (AML) cells preferentially over normal hematopoietic cells. In a mouse model of leukemia, Q(2) delayed tumor growth. Mechanistically, Q(2) induced cell death through caspase independent mechanisms. By electron microscopy, Q(2) increased cytoplasmic vacuolization and mitochondrial swelling. Potentially consistent with the induction of autophagic cell death, Q(2) treatment led to a punctate distribution of LC3 and increased MDC staining. Thus, Q(2) is a novel quinolinium with preclinical activity in malignancies such as leukemia and myeloma and warrants further investigation.
Collapse
Affiliation(s)
- Rose Hurren
- Ontario Cancer Institute, Princess Margaret Hospital, 610 University Ave, Toronto, ON, Canada M5G 2M9
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
A novel benzotriazole derivative inhibits proliferation of human hepatocarcinoma cells by increasing oxidative stress concomitant mitochondrial damage. Eur J Pharmacol 2008; 584:144-52. [DOI: 10.1016/j.ejphar.2008.01.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2007] [Revised: 12/21/2007] [Accepted: 01/22/2008] [Indexed: 11/21/2022]
|
40
|
Kruglov AG, Teplova VV, Saris NEL. The effect of the lipophilic cation lucigenin on mitochondria depends on the site of its reduction. Biochem Pharmacol 2007; 74:545-56. [PMID: 17586474 DOI: 10.1016/j.bcp.2007.05.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2007] [Revised: 05/12/2007] [Accepted: 05/16/2007] [Indexed: 11/25/2022]
Abstract
The role of NAD(P)H-dependent oxidoreductases of the outer mitochondrial membrane (OMM) in the activation of lipophilic cationic dyes is poorly understood. In the present study we compared the rates of production of reactive oxygen species (ROS) and mitochondriotoxic effects of the redox-cycling lipophilic cationic dye lucigenin upon its activation by the respiratory chain and NAD(P)H-dependent oxidoreductases of the OMM. We found that, only in the presence of external NADH and NADPH, which are unable to penetrate the inner membrane, lucigenin stimulated a massive superoxide production and a fast permeabilization of mitochondrial membranes. The permeabilization was biphasic. The first, cyclosporin A-insensitive and Ca(2+)-independent phase was characterized by increased permeability of the inner mitochondrial membrane to solutes with molecular masses of <or=200 Da. The second phase was sensitive to the antagonists of the permeability transition pore (mPTP) and was characterized by permeability similar to that of mPTP (<or=1500 Da). A massive cytochrome c release was observed even at the first phase of permeability when the second phase was inhibited by mPTP antagonists. Whatever the site of lucigenin activation, antioxidants and scavengers of ROS that strongly decrease the ROS level were unable to delay or prevent the permeabilization of membranes, which casts doubt on the involvement of ROS in the regulation of permeability by redox-cycling lipophilic cations. Our results strongly support the idea that the NAD(P)H-dependent reductases of xenobiotics of the OMM can mediate the toxicity of cationic dyes.
Collapse
Affiliation(s)
- Alexey G Kruglov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow, Russia.
| | | | | |
Collapse
|
41
|
Sancho P, Galeano E, Nieto E, Delgado MD, García-Pérez AI. Dequalinium induces cell death in human leukemia cells by early mitochondrial alterations which enhance ROS production. Leuk Res 2007; 31:969-78. [PMID: 17250890 DOI: 10.1016/j.leukres.2006.11.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Revised: 11/27/2006] [Accepted: 11/27/2006] [Indexed: 01/13/2023]
Abstract
Dequalinium (DQA) has been proposed as a selective antitumoral agent due to its preferential accumulation in mitochondria of cancer cells. Our aim was a better understanding of DQA cytotoxicity. DQA-induced NB4 and K562 cell alterations are initiated within the first 30 min of treatment at a high DQA concentration with a mitochondrial membrane depolarization. Cytochrome c release to cytoplasm, superoxide anion overproduction and ATP depletion in NB4 cells induce, 16 h later, apoptosis by a typical caspase-9/caspase-3-dependent intrinsic pathway. K562 cells were more resistant to the DQA effect than NB4 cells, remaining viable for longer time periods.
Collapse
Affiliation(s)
- Pilar Sancho
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Campus Universitario, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | | | | | | | | |
Collapse
|
42
|
Rodrigues JR, Gamboa de Domínguez N. Plasmodium berghei: In vitro and in vivo activity of dequalinium. Exp Parasitol 2007; 115:19-24. [PMID: 16814285 DOI: 10.1016/j.exppara.2006.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2005] [Revised: 04/29/2006] [Accepted: 05/09/2006] [Indexed: 10/24/2022]
Abstract
Bisquinoline compounds have exhibited remarkable activity in vitro and in vivo against Plasmodium parasites by inhibition of heme detoxification. We have tested the ability of dequalinium 1,1'-(1,10-decanediyl)bis(4-amino-2-methylquinoline), a known antimicrobial agent, to inhibit beta-hematin synthesis using a non-emzymatic colorimetric assay and globin proteolysis by electrophoretic analysis (SDS-PAGE-15%). Dequalinium was able to inhibit both processes in vitro with close correlation to a murine malaria model, reducing parasitemia levels, prolonging the survival time post-infection and curing 40% of infected mice using a combination therapy with a loading dose of chloroquine. These results confirm that dequalinium is a promising lead for antimalarial drug development.
Collapse
Affiliation(s)
- Juan Ricardo Rodrigues
- Unidad de Bioquímica, Facultad de Farmacia, Universidad Central de Venezuela, Apartado 47206, Los Chaguaramos, Caracas 1051-A, Venezuela.
| | | |
Collapse
|
43
|
Ioppolo JA, Clegg JK, Rendina LM. Dicarba-closo-dodecaborane(12) derivatives of phosphonium salts: easy formation of nido-carborane phosphonium zwitterions. Dalton Trans 2007:1982-5. [PMID: 17502929 DOI: 10.1039/b700689f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first examples of arylphosphonium salts containing a dicarba-closo-dodecaborane(12) (closo-carborane) are reported; in contrast to the 1,12-carborane derivative, the 1,2- and 1,7-isomers undergo a facile deboronation reaction in polar solvents to afford the corresponding nido-carborane phosphonium zwitterions.
Collapse
Affiliation(s)
- Joseph A Ioppolo
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | | | | |
Collapse
|