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Lee J, Bang JH, Ryu YC, Hwang BH. Multiple suppressing small interfering RNA for cancer treatment-Application to triple-negative breast cancer. Biotechnol J 2023; 18:e2300060. [PMID: 37478121 DOI: 10.1002/biot.202300060] [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: 02/07/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023]
Abstract
Certain cancers, such as triple-negative breast cancer (TNBC), pose a challenging prognosis due to the absence of identifiable hormone-related receptors and effective targeted therapies. Consequently, novel therapeutics are required for these cancers, offering minimal side effects and reduced drug resistance. Unexpectedly, siRNA-7, initially employed as a control, exhibited significant efficacy in inhibiting cell viability in MDA-MB-231 cells. Through a genome-wide search of seed sequences, the targets of siRNA-7 were identified as cancer-related genes, namely PRKCE, RBPJ, ZNF737, and CDC7 in MDA-MB-231 cells. The mRNA repression analysis confirmed the simultaneous suppression by siRNA-7. Combinatorial administration of single-targeting siRNAs demonstrated a comparable reduction in viability to that achieved by siRNA-7. Importantly, siRNA-7 selectively inhibited cell viability in MDA-MB-231 cells, while normal HDF-n cells remained unaffected. Furthermore, in a xenograft mouse model, siRNA-7 exhibited a remarkable 76% reduction in tumor volume without any loss in body weight. These findings position siRNA-7 as a promising candidate for a novel, safe, specific, and potent TNBC cancer therapeutic. Moreover, the strategy of multiple suppressing small interfering RNA holds potential for the treatment of various diseases associated with gene overexpression.
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Affiliation(s)
- Jaewook Lee
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Jang Hyuk Bang
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Yeong Chae Ryu
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Byeong Hee Hwang
- Department of Bioengineering and Nano-bioengineering, Incheon National University, Incheon, Republic of Korea
- Division of Bioengineering, Incheon National University, Incheon, Republic of Korea
- Research Center for Bio Material & Process Development, Incheon National University, Incheon, Republic of Korea
- Institute for New Drug Development, Incheon National University, Incheon, Republic of Korea
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2
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Ryschich A, Dong Y, Schäfer M, Ryschich E, Karakhanova S. DWH24: a new antibody for fluorescence-based cell death analysis. Methods Appl Fluoresc 2023; 11:045006. [PMID: 37612784 DOI: 10.1088/2050-6120/aceed0] [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: 11/24/2022] [Accepted: 08/09/2023] [Indexed: 08/25/2023]
Abstract
Antibodies have gained considerable importance in laboratory and clinical settings. Currently, antibodies are extensively employed for the diagnosis and treatment of several human diseases. Herein, using targeted and cell immunisation approaches, we developed and characterised an antibody clone, DWH24. We found that DWH24 is an IgMκtype antibody that enables excellent visualisation and quantification of dead cells using immunofluorescence, fluorescence microscopy, and flow cytometry. This property was proved by the spontaneous cell death of several tumour cell lines and stimulated T cells, as well as after chemo- and photodynamic therapy. Unlike conventional apoptosis and cell death markers, DWH24 binding occurred in a Ca2+- and protein-independent manner and enabled live imaging of cell death progress, as shown using time-lapse microscopy. The binding specificity of DWH24 was analysed using a human proteome microarray, which revealed a complex response profile with very high spot intensities against various proteins, such as tropomyosin variants and FAM131C. Accordingly, DWH24 can be employed as a suitable tool for the cost-effective and universal analysis of cell death using fluorescence imaging and flow cytometry.
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Affiliation(s)
- Anna Ryschich
- Section of Surgical Research, Clinic of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Yan Dong
- Section of Surgical Research, Clinic of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Michael Schäfer
- Section of Surgical Research, Clinic of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Eduard Ryschich
- Section of Surgical Research, Clinic of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Svetlana Karakhanova
- Section of Surgical Research, Clinic of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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3
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Thymic Extracellular Matrix in the Thymopoiesis: Just a Supporting? BIOTECH 2022; 11:biotech11030027. [PMID: 35892932 PMCID: PMC9326736 DOI: 10.3390/biotech11030027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 11/25/2022] Open
Abstract
The generation of T lymphocytes (thymopoiesis) is one of the major functions of the thymus that occurs throughout life. Thymic epithelial cells actively participate in this process. However, less attention has been paid to extracellular matrix (ECM) elements of thymus and their role in thymocyte differentiation. To clarify this topic, we selected some studies that deal with thymic ECM, its modulation, and its effects on thymopoiesis in different models. We emphasize that further studies are needed in order to deepen this knowledge and to propose new alternatives for thymic ECM functions during thymopoiesis.
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Amphiphilic Anionic Oligomer-Stabilized Calcium Phosphate Nanoparticles with Prospects in siRNA Delivery via Convection-Enhanced Delivery. Pharmaceutics 2022; 14:pharmaceutics14020326. [PMID: 35214058 PMCID: PMC8877163 DOI: 10.3390/pharmaceutics14020326] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/19/2022] [Accepted: 01/25/2022] [Indexed: 01/27/2023] Open
Abstract
Convection-enhanced delivery (CED) has been introduced as a concept in cancer treatment to generate high local concentrations of anticancer therapeutics and overcome the limited diffusional distribution, e.g., in the brain. RNA interference provides interesting therapeutic options to fight cancer cells but requires nanoparticulate (NP) carriers with a size below 100 nm as well as a low zeta potential for CED application. In this study, we investigated calcium phosphate NPs (CaP-NPs) as siRNA carriers for CED application. Since CaP-NPs tend to aggregate, we introduced a new terpolymer (o14PEGMA(1:1:2.5) NH3) for stabilization of CaP-NPs intended for delivery of siRNA to brain cancer cells. This small terpolymer provides PEG chains for steric stabilization, and a fat alcohol to improve interfacial activity, as well as maleic anhydrides that allow for both labeling and high affinity to Ca(II) in the hydrolyzed state. In a systematic approach, we varied the Ca/P ratio as well as the terpolymer concentration and successfully stabilized NPs with the desired properties. Labeling of the terpolymer with the fluorescent dye Cy5 revealed the terpolymer’s high affinity to CaP. Importantly, we also determined a high efficiency of siRNA binding to the NPs that caused very effective survivin siRNA silencing in F98 rat brain cancer cells. Cytotoxicity investigations with a standard cell line resulted in minor and transient effects; no adverse effects were observed in organotypic brain slice cultures. However, more specific cytotoxicity investigations are required. This study provides a systematic and mechanistic analysis characterizing the effects of the first oligomer of a new class of stabilizers for siRNA-loaded CaP-NPs.
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5
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Adil N, Ali H, Siddiqui AJ, Ali A, Ahmed A, El-Seedi HR, Musharraf SG. Evaluation of cytotoxicity of areca nut and its commercial products on normal human gingival fibroblast and oral squamous cell carcinoma cell lines. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123872. [PMID: 33264944 DOI: 10.1016/j.jhazmat.2020.123872] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 06/12/2023]
Abstract
Consumption of areca nut products is the most common cause of oral cancers, particularly in South Asian countries. This study evaluates the cytotoxic and necrotizing effects of areca nut and its formulations on normal human gingival fibroblasts (HGF-1) and oral squamous cell carcinoma (OSCC, CAL-27) cell lines. Identification of various carcinogens and adulterants using LC-HR-ESI-MS/MS analysis was performed in the extracts of areca nut and its products. Apart from alkaloids and flavonoids, a major adulterant, saccharin was found in all the samples of chalia (one of the most common chewing products of areca nut) in the ranges between 1.697-7.170 mg/g of the sample. Cytotoxic studies showed that most of the areca nut products were found cytotoxic to HGF-1 cells while being relatively non-cytotoxic against CAL-27 cells, rather they promote the growth of cancer cells. Our findings revealed that the components of areca nut and its products were injurious to HGF-1 cells and caused necrosis, which may attenuate HGF-1 protection toward oral epithelial cells. Moreover, the non-cytotoxic effect of these products on cancer cell lines suggests further predisposal of the habitual chewers for developing oral carcinomas. This study will give a better understanding of the hazardous effects of areca nut products.
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Affiliation(s)
- Nurmeen Adil
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Hamad Ali
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Amna Jabbar Siddiqui
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Arslan Ali
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Ayaz Ahmed
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Hesham R El-Seedi
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, Uppsala University, Biomedical Centre, Box 591, Uppsala, SE-75 124, Sweden; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, 212013, China
| | - Syed Ghulam Musharraf
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan; Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
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6
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Ohradanova-Repic A, Machacek C, Donner C, Mühlgrabner V, Petrovčíková E, Zahradníková A, Vičíková K, Hořejší V, Stockinger H, Leksa V. The mannose 6-phosphate/insulin-like growth factor 2 receptor mediates plasminogen-induced efferocytosis. J Leukoc Biol 2019; 105:519-530. [PMID: 30657605 PMCID: PMC6392118 DOI: 10.1002/jlb.1ab0417-160rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 12/17/2018] [Accepted: 12/24/2018] [Indexed: 12/14/2022] Open
Abstract
The plasminogen system is harnessed in a wide variety of physiological processes, such as fibrinolysis, cell migration, or efferocytosis; and accordingly, it is essential upon inflammation, tissue remodeling, wound healing, and for homeostatic maintenance in general. Previously, we identified a plasminogen receptor in the mannose 6-phosphate/insulin-like growth factor 2 receptor (M6P/IGF2R, CD222). Here, we demonstrate by means of genetic knockdown, knockout, and rescue approaches combined with functional studies that M6P/IGF2R is up-regulated on the surface of macrophages, recognizes plasminogen exposed on the surface of apoptotic cells, and mediates plasminogen-induced efferocytosis. The level of uptake of plasminogen-coated apoptotic cells inversely correlates with the TNF-α production by phagocytes indicating tissue clearance without inflammation by this mechanism. Our results reveal an up-to-now undetermined function of M6P/IGF2R in clearance of apoptotic cells, which is crucial for tissue homeostasis.
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Affiliation(s)
- Anna Ohradanova-Repic
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Christian Machacek
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Clemens Donner
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Vanessa Mühlgrabner
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Eva Petrovčíková
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovak Republic.,Department of Biochemistry, Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic
| | - Alexandra Zahradníková
- Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic.,Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Kristína Vičíková
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Václav Hořejší
- Institute of Molecular Genetics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Hannes Stockinger
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Vladimir Leksa
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Centre for Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria.,Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovak Republic
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7
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Mesic A, Mahmutović-Dizdarević I, Tahirović E, Durmišević I, Eminovic I, Jerković-Mujkić A, Bešta-Gajević R. Evaluation of toxicological and antimicrobial activity of lavender and immortelle essential oils. Drug Chem Toxicol 2019; 44:190-197. [PMID: 30607990 DOI: 10.1080/01480545.2018.1538234] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Lavender and immortelle essential oils (EOs) are widely used to treat a spectrum of human conditions. The aim of this study was to investigate cyto/genotoxic effects of lavender and immortelle EOs using plant cells (Allium cepa) and human lymphocytes, as well as their antimicrobial potential using nine strains of bacteria and fungi. Our results for lavender and immortelle EOs showed that the frequency of chromosome aberrations (CAs) was increased in comparison with controls. For both oils, increased frequency of apoptosis for all concentrations, as well as the frequency of necrosis (0.10/0.30 µl/ml for lavender/immortelle, respectively) was demonstrated. In human lymphocytes, differences for minute fragments between immortelle oil (0.10 µl/ml) and controls were observed. Increased frequency of apoptosis was detected for immortelle oil (0.20 µl/ml), while both oils (0.20; 0.30 µl/ml lavender, and immortelle at all concentrations) induced higher frequency of necrosis in comparison with controls. Lavender EO was effective against all tested Gram-positive and Gram-negative bacteria, while immortelle EO inhibited only Gram-positive bacteria. Both oils exhibited antifungal effect. Our results demonstrated that lavender and immortelle EOs showed cyto/genotoxic effects in both, plant and human cells, as well as antimicrobial properties. Further studies are needed to strengthen these findings.
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Affiliation(s)
- Aner Mesic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | | | - Emina Tahirović
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Irma Durmišević
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Izet Eminovic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Anesa Jerković-Mujkić
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Renata Bešta-Gajević
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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8
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Salama MM, El-Naggar DA, Abdel-Rahman RH, Elhak SAG. Toxic Effects of Trichloroethylene on Rat Neuroprogenitor Cells. Front Pharmacol 2018; 9:741. [PMID: 30042680 PMCID: PMC6048252 DOI: 10.3389/fphar.2018.00741] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/18/2018] [Indexed: 01/08/2023] Open
Abstract
Trichloroethylene (TCE) is a common volatile organic solvent which is considered as an ubiquitous environmental pollutant. It is claimed to be a developmental neurotoxicant. Our group evaluated previously its impact on three-dimensional neurospheres in vitro. The current work aims to investigate the neurotoxic effects of a lower concentration of TCE on the same system. To perform the experiment, neural progenitor cells were obtained from the brains of nine newborn rats. Afterward, these cells were cultured in both growth and differentiation media to get the neurospheres. Cell cultures were divided into two groups: group 1 (control), group 2 (exposed to 0.25 μM TCE). Neurospheres were photographed at different durations and assessment of the morphological changes such as proliferation and differentiation of neurospheres was done. In addition, cell viability, apoptosis, and necrosis were analyzed using flow cytometry to clarify the mechanism of involved cytotoxicity. The results revealed that TCE-treated neurospheres showed significantly decreased proliferation on days 7 and 14. These cells failed to show the neurogenic differentiation seen in the neurospheres of the control group. Furthermore, a highly significant decrease in viability and a significant increase in the number of apoptotic cells were observed in the treated cells in comparison to the control group. The present work confirmed that TCE, at very low doses relevant to daily life exposure in humans, caused neurotoxic effects in 3D neurosphere model through the affection of neural proliferation and differentiation as well as disturbance of cell viability and apoptosis.
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Affiliation(s)
- Mohamed M Salama
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Experimental Research Centre, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Doaa A El-Naggar
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Rania H Abdel-Rahman
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Seham A G Elhak
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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9
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Extracellular vesicles – biogenesis, composition, function, uptake and therapeutic applications. Biologia (Bratisl) 2018. [DOI: 10.2478/s11756-018-0047-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Li S, Hao G, Peng W, Geng X, Sun J. Expression and functional characterization of vitronectin gene from Japanese flounder (Paralichthys olivaceus). FISH & SHELLFISH IMMUNOLOGY 2017; 65:9-16. [PMID: 28377270 DOI: 10.1016/j.fsi.2017.03.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
Vitronectin (Vtn) is a multifunctional protein that plays significant roles in cell adhesion, migration, spreading and survival, and in the regulation of membrane attack complex formation and the terminal pathway of complement activation in innate immune response. However, the expression and immune significance of Vtn in fish remains largely unknown. In order to understand the involvement of Vtn in fish innate immune response, here we cloned and characterized a full-length Vtn ortholog cDNA, termed PoVtn, from Japanese flounder Paralichthys olivaceus. The deduced PoVtn protein is comprised of 438 amino acids with a 19-amino-acid signal peptide sequence (1Met-19Ala) at the N-terminus. Protein domain analysis revealed that PoVtn possesses a conserved N-terminal somatomedin B domain followed by a conserved RGD motif and four haemopexin-like domains. Sequence analysis revealed that PoVtn has two potential glycosylation sites and shares 44-74% sequence identity with other teleost Vtn proteins. PoVtn mRNA was ubiquitously distributed in all examined normal tissues and showed the highest expression in Japanese flounder hepatopancreas tissue. PoVtn expression was induced by LPS and poly(I:C) challenges in the Japanese flounder head kidney macrophages (HKMs) and peripheral blood leucocytes (PBLs) and shows a pathogen-associated molecular pattern- and cell type-dependent manner. The expression of PoVtn was also modulated by bacterial challenge with Edwardsiella tarda in Japanese flounder immune-related tissues including head kidney, gill and spleen. Furthermore, overexpression of PoVtn in Japanese flounder FG-9307 cells significantly attenuated the LPS- and poly(I:C)-induced proinflammatory cytokines IL-1beta and TNF-alpha gene expression. Taken our findings together, we for the first time characterized Vtn gene expression in response to inflammatory stimuli in fish. Our results suggested a potential role of PoVtn in regulating fish innate immunity.
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Affiliation(s)
- Shuo Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin 300387, China.
| | - Gaixiang Hao
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin 300387, China
| | - Weijiao Peng
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin 300387, China
| | - Xuyun Geng
- Tianjin Center for Control and Prevention of Aquatic Animal Infectious Disease, 442 South Jiefang Road, Hexi District, Tianjin 300221, China
| | - Jinsheng Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin 300387, China.
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Khazaei S, Ramachandran V, Abdul hamid R, Mohd Esa N, Etemad A, Moradipoor S, Ismail P. Flower extract of Allium atroviolaceum triggered apoptosis, activated caspase-3 and down-regulated antiapoptotic Bcl-2 gene in HeLa cancer cell line. Biomed Pharmacother 2017; 89:1216-1226. [DOI: 10.1016/j.biopha.2017.02.082] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 02/14/2017] [Accepted: 02/22/2017] [Indexed: 01/18/2023] Open
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12
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Khazaei S, Abdul Hamid R, Mohd Esa N, Ramachandran V, Aalam GTF, Etemad A, Ismail P. Promotion of HepG2 cell apoptosis by flower of Allium atroviolaceum and the mechanism of action. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:104. [PMID: 28187719 PMCID: PMC5303252 DOI: 10.1186/s12906-017-1594-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 01/20/2017] [Indexed: 02/06/2023]
Abstract
Background Liver cancer is a high incidence and fatal disease, the fifth most frequent cancer worldwide that is usually diagnosed at an advanced stage. The number of deaths from liver cancer has not declined even following various therapies. Plant secondary metabolites and their semi-synthetic derivatives play a principal role in anti-cancer drug therapy, since they are effective in the treatment of specific characteristics while also reducing side effects. Allium atroviolaceum, a plant of the genus Allium has been used in folk medicine to protect against several diseases. However, cytotoxicity and the anti-proliferative effect of Allium atroviolaceum remain unclear. This work aims to investigate the anticancer properties of Allium atroviolaceum and the mechanism of action. Methods To evaluate the in vitro cytotoxicity of flower of Allium atroviolaceum, methanol extract at a dose range from 100 to 3.12 μg/ml was assessed against the HepG2 hepatocarcinoma cell line, and also on normal 3T3 cells, by monitoring proliferation using the MTT assay method. A microscopy study was undertaken to observe morphological changes of HepG2 cells after treatment and cell cycle arrest and apoptosis were studied using flow cytometry. The apoptosis mechanism of action was assessed by the level of caspase-3 activity and expression of apoptosis related genes, Bcl-2, Cdk1 and p53. The combination effect of the methanolic extract with doxorubicin was also investigated by determination of a combination index. Results The results demonstrated growth inhibition of cells in both dose- and time-dependent manners, while no cytotoxic effect on normal cell 3T3 was found. The results revealed the occurrence of apoptosis, illustrated by sub-G0 cell cycle arrest, the change in morphological feature and annexin-V and propidium iodide staining, which is correlated with Bcl-2 downregulation and caspase-3 activity, but p53-independent. In addition, a combination of Allium atroviolaceum and doxorubicin led to a significant synergistic effect. Conclusion These findings suggest that Allium atroviolaceum flower extract has potential as a potent cytotoxic agent against HepG2 cell lines, as it has commendable anti-proliferative activities against human hepatocarcinoma and it can be considered as an effective adjuvant therapeutic agent after the clinical trials.
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13
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Sorrentino A, Borghetti G, Zhou Y, Cannata A, Meo M, Signore S, Anversa P, Leri A, Goichberg P, Qanud K, Jacobson JT, Hintze TH, Rota M. Hyperglycemia induces defective Ca2+ homeostasis in cardiomyocytes. Am J Physiol Heart Circ Physiol 2016; 312:H150-H161. [PMID: 27881388 DOI: 10.1152/ajpheart.00737.2016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 11/21/2016] [Accepted: 11/21/2016] [Indexed: 01/03/2023]
Abstract
Diabetes and other metabolic conditions characterized by elevated blood glucose constitute important risk factors for cardiovascular disease. Hyperglycemia targets myocardial cells rendering ineffective mechanical properties of the heart, but cellular alterations dictating the progressive deterioration of cardiac function with metabolic disorders remain to be clarified. In the current study, we examined the effects of hyperglycemia on cardiac function and myocyte physiology by employing mice with high blood glucose induced by administration of streptozotocin, a compound toxic to insulin-producing β-cells. We found that hyperglycemia initially delayed the electrical recovery of the heart, whereas cardiac function became defective only after ~2 mo with this condition and gradually worsened with time. Prolonged hyperglycemia was associated with increased chamber dilation, thinning of the left ventricle (LV), and myocyte loss. Cardiomyocytes from hyperglycemic mice exhibited defective Ca2+ transients before the appearance of LV systolic defects. Alterations in Ca2+ transients involved enhanced spontaneous Ca2+ releases from the sarcoplasmic reticulum (SR), reduced cytoplasmic Ca2+ clearance, and declined SR Ca2+ load. These defects have important consequences on myocyte contraction, relaxation, and mechanisms of rate adaptation. Collectively, our data indicate that hyperglycemia alters intracellular Ca2+ homeostasis in cardiomyocytes, hindering contractile activity and contributing to the manifestation of the diabetic cardiomyopathy. NEW & NOTEWORTHY We have investigated the effects of hyperglycemia on cardiomyocyte physiology and ventricular function. Our results indicate that defective Ca2+ handling is a critical component of the progressive deterioration of cardiac performance of the diabetic heart.
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Affiliation(s)
- Andrea Sorrentino
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Giulia Borghetti
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yu Zhou
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Antonio Cannata
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Marianna Meo
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sergio Signore
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Piero Anversa
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Fondazione Cardiocentro Ticino, University of Zurich, Lugano, Switzerland
| | - Annarosa Leri
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Fondazione Cardiocentro Ticino, University of Zurich, Lugano, Switzerland
| | - Polina Goichberg
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Khaled Qanud
- Department of Physiology, New York Medical College, Valhalla, New York; and
| | - Jason T Jacobson
- Department of Physiology, New York Medical College, Valhalla, New York; and.,Department of Cardiology, Westchester Medical Center, Valhalla, New York
| | - Thomas H Hintze
- Department of Physiology, New York Medical College, Valhalla, New York; and
| | - Marcello Rota
- Departments of Anesthesia and Medicine and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; .,Department of Physiology, New York Medical College, Valhalla, New York; and
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14
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Mesic A, Nefic H. Assessment of the genotoxicity and cytotoxicity in environmentally exposed human populations to heavy metals using the cytokinesis-block micronucleus cytome assay. ENVIRONMENTAL TOXICOLOGY 2015; 30:1331-1342. [PMID: 24861359 DOI: 10.1002/tox.22004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 05/04/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
The cytokinesis-block micronucleus cytome (CBMN-Cyt) assay was developed as a system for evaluating DNA damage, cytostasis, and cytotoxicity. The aim of the present study was to estimate levels of micronuclei (MNi), nucleoplasmic bridges (NPBs), nuclear buds (NBUDs), cell death (apoptosis/necrosis), nuclear division index, and nuclear division cytotoxicity index values in the peripheral blood lymphocytes of environmentally exposed subjects to heavy metals from five Bosnian regions, characterized by different exposure to heavy metals. The study was performed using CBMN-Cyt assay, considering factors, such as age, gender and smoking habits and their possible effects on analyzed parameters. In total, 104 healthy subjects were selected (49.04% females and 50.96% males; average age, 35.41 years; 51.92% smokers and 48.08% nonsmokers). There was significant difference between the frequency of NBUDs in Tuzla as compared to the control group. Furthermore, there was observed a statistically significant difference for the frequency of NPBs between Zenica, Olovo, and Kakanj when compared with the controls. Males showed a significantly higher number of apoptotic cells than females in controls. There were significant differences between smokers and nonsmokers in the frequency of NPBs in controls (higher in nonsmokers) and necrotic cells in Olovo (higher in nonsmokers). The pack years of smoking significantly influenced the number of necrotic cells in controls and the frequency of NBUDs in the overall sample. The results of the present study provide evidence of significantly increased frequency of NPBs and NBUDs in exposed subjects, suggesting that these endpoints are highly sensitive markers for measuring genotoxicity.
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Affiliation(s)
- Aner Mesic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Hilada Nefic
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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15
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Bonaterra GA, Wakenhut F, Röthlein D, Wolf M, Bistrian BR, Driscoll D, Kinscherf R. Cytoprotection by omega-3 fatty acids as a therapeutic drug vehicle when combined with nephrotoxic drugs in an intravenous emulsion: Effects on intraglomerular mesangial cells. Toxicol Rep 2014; 1:843-857. [PMID: 28962296 PMCID: PMC5598520 DOI: 10.1016/j.toxrep.2014.10.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 08/18/2014] [Accepted: 10/10/2014] [Indexed: 12/03/2022] Open
Abstract
Distinct concentrations of Ketorolac/Gentamicin are toxic to mesangial (MES 13) cells. Omega-3 fatty acids protect intraglomerular mesangial cells against nephrotoxic drugs. Omega-6 fatty acids do not protect MES 13 cells against nephrotoxic drugs. Cytoprotection by n-3 PUFA may be due to increased intracellular redox state.
During therapeutic interventions, blood concentrations of intravenously applied drugs are higher, and their onset of pharmacological action is faster than with other routes of drug administration. However, acute drug therapy often produces nephrotoxic side effects, as commonly seen after treatment with Ketorolac or Gentamicin leading to questions about their use, especially for patients at risk for acute renal failure. Omega-6(n-6) and omega-3(n-3) polyunsaturated fatty acids (PUFA) affect eicosanoid metabolism, which plays a role in the regulation of inflammation. Eicosanoids derived from n-6 FA have proinflammatory and immunoactive functions, whereas eicosanoids derived from n-3 PUFA have anti-inflammatory and cytoprotective properties. We hypothesized that providing such injectable drugs with nephrotoxic potential in combination with n3-PUFAs from the outset, might afford rapid cytoprotection of renal cells, given the recent evidence that intravenously administered n3-PUFAs are rapidly incorporated into cell membranes. We used intraglomerular mesangial cells (MES13) that are sensitive to treatment with Ketorolac or Gentamicin instead of proximal tubular cells which do not respond to Ketorolac. We found a significant inhibition of Ketorolac (0.25, 0.5, 1 mM) or Gentamicin (2.5, 5 mM) induced cytotoxicity after pretreatment of MES13 cells with 0.01% of 20%w/v LipOmega-3 Emulsion 9/1, containing 90:10 wt/wt mixture of fish oil derived triglycerides to medium chain triglycerides.
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Affiliation(s)
- Gabriel Alejandro Bonaterra
- Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, Robert-Koch-Str. 8, 35032 Marburg, Germany
| | - Florian Wakenhut
- B. Braun Melsungen AG, Hospital Care Division, Am Schwerzelshof, 34212 Melsungen, Germany
| | - Doris Röthlein
- B. Braun Melsungen AG, Hospital Care Division, Am Schwerzelshof, 34212 Melsungen, Germany
| | - Martin Wolf
- B. Braun Melsungen AG, Hospital Care Division, Am Schwerzelshof, 34212 Melsungen, Germany
| | - Bruce Ryan Bistrian
- Beth Israel Deaconess medical Center, Harvard Medical School, 1 Deaconess Road, Boston, MA 02215, USA
| | - David Driscoll
- Stable Solutions LLC, Easton Industrial Park, 19 Norfolk Avenue, South Easton, MA 02375, USA.,University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Ralf Kinscherf
- Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, Robert-Koch-Str. 8, 35032 Marburg, Germany
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16
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Malagolini N, Catera M, Osorio H, Reis CA, Chiricolo M, Dall'Olio F. Apoptotic cells selectively uptake minor glycoforms of vitronectin from serum. Apoptosis 2014; 18:373-84. [PMID: 23381642 DOI: 10.1007/s10495-013-0812-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Apoptosis profoundly alters the carbohydrate layer coating the membrane of eukaryotic cells. Previously we showed that apoptotic cells became reactive with the α2,6-sialyl-specific lectin from Sambucus nigra agglutinin (SNA), regardless of their histological origin and the nature of the apoptotic stimulus. Here we reveal the basis of the phenomenon by showing that in apoptotic cancer cell lines SNA reactivity was mainly associated with a 67 kDa glycoprotein which we identified by MALDI-TOF/TOF and immunoblot analysis as bovine vitronectin (bVN). bVN was neither present in non-apoptotic cells, nor in cells induced to apoptosis in serum-free medium, indicating that its uptake from the cell culture serum occurred only during apoptosis. The bVN molecules associated with apoptotic cancer cell lines represented minor isoforms, lacking the carboxyterminal sequence and paradoxically containing a few α2,6-linked sialic acid residues. Despite their poor α2,6-sialylation, these bVN molecules were sufficient to turn apoptotic cells to SNA reactivity, which is a late apoptotic event occurring in cells positive to both annexin-V and propidium iodide. Unlike in cancer cell lines, the major bVN form taken up by apoptotic neutrophils and mononuclear cells was a 80 kDa form. In apoptotic SW948 cells we also detected the α2,6-sialylated forms of the stress-70 mitochondrial precursor (mortalin) and of tubulin-β2C. These data indicate that the acquisition of vitronectin isoforms from the environment is a general, although cell specific phenomenon, potentially playing an important role in post-apoptotic events and that the α2,6-sialylation of intracellular proteins is a new kind of posttranslational modification associated with apoptosis.
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Affiliation(s)
- Nadia Malagolini
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Via S. Giacomo 14, 40126 Bologna, Italy
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17
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Leavesley DI, Kashyap AS, Croll T, Sivaramakrishnan M, Shokoohmand A, Hollier BG, Upton Z. Vitronectin--master controller or micromanager? IUBMB Life 2013; 65:807-18. [PMID: 24030926 DOI: 10.1002/iub.1203] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 07/18/2013] [Indexed: 11/07/2022]
Abstract
The concept that the mammalian glycoprotein vitronectin acts as a biological 'glue' and key controller of mammalian tissue repair and remodelling activity is emerging from nearly 50 years of experimental in vitro and in vivo data. Unexpectedly, the vitronectin-knockout (VN-KO) mouse was found to be viable and to have largely normal phenotype. However, diligent observation revealed that the VN-KO animal exhibits delayed coagulation and poor wound healing. This is interpreted to indicate that VN occupies a role in the earliest events of thrombogenesis and tissue repair. VN is the foundation upon which the thrombus grows in an organised structure. In addition to sealing the wound, the thrombus also serves to protect the underlying tissue from oxidation, is a reservoir of mitogens and tissue repair mediators, and provides a provisional scaffold for the repairing tissue. In the absence of VN (e.g., VN-KO animal), this cascade is disrupted before it begins. A wide variety of biologically active species associate with VN. Although initial studies were focused on mitogens, other classes of bioactives (e.g., glycosaminoglycans and metalloproteinases) are now also known to specifically interact with VN. Although some interactions are transient, others are long-lived and often result in multi-protein complexes. Multi-protein complexes provide several advantages: prolonging molecular interactions, sustaining local concentrations, facilitating co-stimulation of cell surface receptors and thereby enhancing cellular/biological responses. We contend that these, or equivalent, multi-protein complexes facilitate VN polyfunctionality in vivo. It is also likely that many of the species demonstrated to associate with VN in vitro, also associate with VN in vivo in similar multi-protein complexes. Thus, the predominant biological function of VN is that of a master controller of the extracellular environment; informing, and possibly instructing cells 'where' to behave, 'when' to behave and 'how' to behave (i.e., appropriately for the current circumstance).
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Affiliation(s)
- David I Leavesley
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
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18
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Pieme CA, Guru SK, Ambassa P, Kumar S, Ngameni B, Ngogang JY, Bhushan S, Saxena AK. Induction of mitochondrial dependent apoptosis and cell cycle arrest in human promyelocytic leukemia HL-60 cells by an extract from Dorstenia psilurus: a spice from Cameroon. Altern Ther Health Med 2013; 13:223. [PMID: 24016040 PMCID: PMC3847675 DOI: 10.1186/1472-6882-13-223] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 08/30/2013] [Indexed: 12/20/2022]
Abstract
Background The use of edible plants is an integral part of dietary behavior in the West region of Cameroon. Dorstenia psilurus (Moraceae) is widely used as spice and as medicinal plant for the treatment of several diseases in Cameroon. The aim of this study is to investigate the cytotoxic and apoptotic potential of methanol extract of D. psilurus in human promyelocytic leukemia (HL-60) cells and prostate cancer (PC-3) cells. Methods Cytotoxicity of D. psilurus extract was tested in HL-60 and PC-3 cells using 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) reduction assay and flow cytometric methods Results The methanol extract of D. psilurus have significant in vitro cytotoxic activity in HL-60 cells and PC-3 cells with IC50 value of 12 ±1.54 μg/ml and 18 ± 0.45 μg/ml respectively after 48 h. The mechanism of antiproliferative activity showed that after 24 h, D. psilurus extract induces apoptosis on HL-60 cells by the generation of reactive oxygen species (ROS) along with concurrent loss of mitochondrial membrane potential, modification in the DNA distribution and enhance of G2/M phase cell cycle. Conclusion The extract induces apoptosis of HL-60 cells associated with ROS production, loss of mitochondrial membrane potential and apoptotic DNA fragmentation.
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19
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Cruz C, Cairrão E, Lourenço O, Almeida P, Verde I, Queiroz JA. Polyazamacrocycles as Potential Antitumor Agents for Human Prostate Cancer Cells. Chem Biol Drug Des 2013; 81:517-26. [DOI: 10.1111/cbdd.12098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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