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Najeeb HA, Sanusi T, Saldanha G, Brown K, Cooke MS, Jones GD. Redox modulation of oxidatively-induced DNA damage by ascorbate enhances both in vitro and ex-vivo DNA damage formation and cell death in melanoma cells. Free Radic Biol Med 2024; 213:309-321. [PMID: 38262545 DOI: 10.1016/j.freeradbiomed.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/10/2024] [Accepted: 01/14/2024] [Indexed: 01/25/2024]
Abstract
Elevated genomic instability in cancer cells suggests a possible model-scenario for their selective killing via the therapeutic delivery of well-defined levels of further DNA damage. To examine this scenario, this study investigated the potential for redox modulation of oxidatively-induced DNA damage by ascorbate in malignant melanoma (MM) cancer cells, to selectively enhance both DNA damage and MM cell killing. DNA damage was assessed by Comet and ɣH2AX assays, intracellular oxidising species by dichlorofluorescein fluorescence, a key antioxidant enzymatic defence by assessment of catalase activity and cell survival was determined by clonogenic assay. Comet revealed that MM cells had higher endogenous DNA damage levels than normal keratinocytes (HaCaT cells); this correlated MM cells having higher intracellular oxidising species and lower catalase activity, and ranked with MM cell melanin pigmentation. Comet also showed MM cells more sensitive towards the DNA damaging effects of exogenous H2O2, and that ascorbate further enhanced this H2O2-induced damage in MM cells; again, with MM cell sensitivity to induced damage ranking with degree of cell pigmentation. Furthermore, cell survival data indicated that ascorbate enhanced H2O2-induced clonogenic cell death selectively in MM cells whilst protecting HaCaT cells. Finally, we show that ascorbate serves to enhance the oxidising effects of the MM therapeutic drug Elesclomol in both established MM cells in vitro and primary cell cultures ex vivo. Together, these results suggest that ascorbate selectively enhances DNA damage and cell-killing in MM cells. This raises the option of incorporating ascorbate into clinical oxidative therapies to treat MM.
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Affiliation(s)
- Hishyar A Najeeb
- Leicester Cancer Research Centre, Department of Genetics & Genome Biology, University of Leicester, UK
| | - Timi Sanusi
- Leicester Medical School, University of Leicester, UK
| | - Gerald Saldanha
- University Hospitals of Leicester NHS Trust, Leicester Royal Infirmary, UK
| | - Karen Brown
- Leicester Cancer Research Centre, Department of Genetics & Genome Biology, University of Leicester, UK
| | - Marcus S Cooke
- Oxidative Stress Group, Department of Molecular Biosciences, University of South Florida, USA.
| | - George Dd Jones
- Leicester Cancer Research Centre, Department of Genetics & Genome Biology, University of Leicester, UK.
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Yang F, Xie T, Hu Z, Chu Z, Lu H, Wu Q, Qin D, Sun S, Luo Z, Luo F. Exploration on anti-hypoxia properties of peptides: a review. Crit Rev Food Sci Nutr 2023:1-16. [PMID: 38116946 DOI: 10.1080/10408398.2023.2291824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Peptides are important components of human nutrition and health, and considered as safe, nontoxic, and easily absorbed potential drugs. Anti-hypoxia peptides are a kind of peptides that can prevent hypoxia or hypoxia damage. In this paper, the sources, preparations, and molecular mechanisms of anti-hypoxia peptides were systemically reviewed. The combination of bioinformatics, chemical synthesis, enzymatic hydrolysis, and microbial fermentation are recommended for efficient productions of anti-hypoxic peptides. The mechanisms of anti-hypoxic peptides include interference with glycolytic process and HIF-1α pathway, mitochondrial apoptosis, and inflammatory response. In addition, bioinformatics analysis, including virtual screening and molecular docking, provides an alternative or auxiliary method for exploring the potential anti-hypoxic activities and mechanisms of peptides. The potential challenges and prospects of anti-hypoxic peptides are also discussed. This paper can provide references for researchers in this field and promote further research and clinical applications of anti-hypoxic peptides in the future.
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Affiliation(s)
- Feiyan Yang
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Tiantian Xie
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Zuomin Hu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Zhongxing Chu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Han Lu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Qi Wu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Dandan Qin
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Shuguo Sun
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Zhang Luo
- College of Food Science, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet, China
| | - Feijun Luo
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
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Cytotoxicity of Newly Synthesized Quinazoline-Sulfonamide Derivatives in Human Leukemia Cell Lines and Their Effect on Hematopoiesis in Zebrafish Embryos. Int J Mol Sci 2022; 23:ijms23094720. [PMID: 35563111 PMCID: PMC9104550 DOI: 10.3390/ijms23094720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 02/06/2023] Open
Abstract
Many quinazoline derivatives with pharmacological properties, such as anticancer activity, have been synthesized. Fourteen quinazoline derivatives bearing a substituted sulfonamide moiety (4a-n) were previously synthesized and fully characterized. These compounds exerted antiproliferative activity against cell lines derived from solid tumors. Herein, the antileukemic activities of these compounds (4a-n) against two different leukemia cell lines (Jurkat acute T cell and THP-1 acute monocytic) were investigated. Our investigation included examining their activity in vivo in a zebrafish embryo model. Remarkably, compounds 4a and 4d were the most potent in suppressing cell proliferation, with an IC50 value range of 4-6.5 µM. Flow cytometry analysis indicated that both compounds halted cell progression at the G2/M phase and induced apoptosis in a dose-dependent manner. RT-PCR and Western blot analyses also showed that both compounds effectively induced apoptosis by upregulating the expression of proapoptotic factors while downregulating that of antiapoptotic factors. In vivo animal toxicity assays performed in zebrafish embryos indicated that compound 4d was more toxic than compound 4a, with compound 4d inducing multiple levels of teratogenic phenotypes in zebrafish embryos at a sublethal concentration. Moreover, both compounds perturbed the hematopoiesis process in developing zebrafish embryos. Collectively, our data suggest that compounds 4a and 4d have the potential to be used as antileukemic agents.
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Mendivil-Perez M, Velez-Pardo C, David-Yepes GE, Fox JE, Jimenez-Del-Rio M. TPEN exerts selective anti-leukemic efficacy in ex vivo drug-resistant childhood acute leukemia. Biometals 2020; 34:49-66. [PMID: 33098492 DOI: 10.1007/s10534-020-00262-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 10/19/2020] [Indexed: 12/14/2022]
Abstract
Despite some advances in the treatment of acute lymphoblastic (ALL) and myeloid leukemia (AML) in recent years, there is still a prominent percentage of pediatric patients with a reduced overall prognosis. Therefore, other therapeutic approaches are needed to treat those patients. In the present study, we report that the metal chelator TPEN affected ΔΨm and DNA content in isolated CD34+ refractory cells from bone marrow ALL (n = 7; B-cell, n = 4; T-cell, n = 3) and AML (n = 3) pediatric patients. Furthermore, TPEN induced oxidation of hydrogen peroxide (H2O2) sensor protein DJ-1, induced up-regulation of BH3-only pro-apoptotic protein PUMA, transcription factor p53 and activated the executor protease CASPASE-3 as apoptosis markers, and reduced the reactivity of the cellular proliferating marker Ki-67 in all acute leukemic groups, and reduced the phosphorylation of c-ABL protein signal in an AML case. Remarkably, bone marrow cells from non-leukemic patients' cells (n = 2) displayed neither loss of ΔΨm nor loss of DNA content when exposed to TPEN. We conclude that TPEN selectively induces apoptosis in acute leukemic cells via reactive oxygen species (ROS) signaling mechanism. Understanding the pathways of TPEN-induced cell death may provide insight into more effective therapeutic ROS-inducing anticancer agents.
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Affiliation(s)
- Miguel Mendivil-Perez
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia (UdeA), SIU Medellin, Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, Medellin, Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia (UdeA), SIU Medellin, Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, Medellin, Colombia
| | - Gloria E David-Yepes
- Children's Hospital San Vicente Foundation, Pediatric Hemato-Oncology Unit, Calle 64 # 51 D-154, Medellin, Colombia
| | - Javier E Fox
- Children's Hospital San Vicente Foundation, Pediatric Hemato-Oncology Unit, Calle 64 # 51 D-154, Medellin, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia (UdeA), SIU Medellin, Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, Medellin, Colombia.
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Methylsulfonylmethane sensitizes endometrial cancer cells to doxorubicin. Cell Biol Toxicol 2020; 37:261-275. [PMID: 32562081 PMCID: PMC8012311 DOI: 10.1007/s10565-020-09542-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/09/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Methylsulfonylmethane (MSM) is a commonly used diet supplement believed to decrease the inflammation in joints and fastens recovery in osteoarthritis, gastric mucosal injury, or obesity-related disorders. It was also suggested that MSM might play a beneficial role in cancer treatment. PURPOSE So far, the MSM might have a potentially beneficial effect in endometrial cancer (EC) treatment. STUDY DESIGN This study evaluated the effect and usefulness of MSM in combinatory therapy with known drug doxorubicin (DOX). METHODS The effect of combinational treatment of MSM and DOX on the induction of apoptosis was evaluated in EC cell lines (ISHIKAWA, MFE-296, MFE-280). RESULTS We observed that MSM itself induces apoptosis in EC cell lines, and pre-treatment with MSM for 24 h increases the sensitivity of EC cells to DOX-induced apoptosis and DNA damage and that effect might be regulated by p42/44 (Erk1/2) MAPK and Akt (protein kinase B). CONCLUSION These results for the first time show that MSM might act as a sensitizer of EC cells to known drugs, for which EC cells quickly acquire resistance. Graphical abstract.
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Soto-Mercado V, Mendivil-Perez M, Jimenez-Del-Rio M, Fox JE, Velez-Pardo C. Cannabinoid CP55940 selectively induces apoptosis in Jurkat cells and in ex vivo T-cell acute lymphoblastic leukemia through H 2O 2 signaling mechanism. Leuk Res 2020; 95:106389. [PMID: 32540572 DOI: 10.1016/j.leukres.2020.106389] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 05/07/2020] [Accepted: 05/23/2020] [Indexed: 11/17/2022]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is a highly heterogeneous malignant hematological disorder arising from T-cell progenitors. This study was aimed to evaluate the cytotoxic effect of CP55940 on human peripheral blood lymphocytes (PBL) and on T-ALL cells (Jurkat). PBL and Jurkat cells were treated with CP55940 (0-20 μM), and morphological changes in the cell nucleus/ DNA, mitochondrial membrane potential (ΔΨm), and intracellular reactive oxygen species levels were determined by fluorescence microscopy and flow cytometry. Cellular apoptosis markers were also evaluated by western blotting, pharmacological inhibition and immunofluorescence. CP55940 induced apoptotic cell death in Jurkat cells, but not in PBL, in a dose-response manner with increasing fragmentation of DNA, arrest of cell cycle and damage of ΔΨm. CP55940 increased dichlorofluorescein fluorescence (DCF) intensity, increased DJ-1 Cys106- sulfonate, a marker of intracellular stress, induced the up-regulation of p53 and phosphorylation of transcription factor c-JUN. It increased the expression of BAX and PUMA, up-regulated mitochondrial proteins PINK1 and Parkin, and activated CASPASE-3. Antioxidant NAC, pifithrin-α, and SP600125 blocked CP55940 deleterious effect on Jurkat cells. However, the potent and highly specific cannabinoid CB1 and CB2 receptor inverse agonist SR141716 and SR144528 were unable to blunt CP55940-induced apoptosis in Jurkat cells. Conclusively CP55940 provokes cell death in Jurkat through CBR-independent mechanism. Interestingly, CP55940 was also cytotoxic to ex vivo T-ALL cells from chemotherapy-resistant pediatric patients. In conclusion, CP55940 selectively induces apoptosis in Jurkat cells through a H2O2-mediated signaling pathway. Our findings support the use of cannabinoids as a potential treatment for T-ALL cells.
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Affiliation(s)
- Viviana Soto-Mercado
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412 SIU, Medellin, Colombia
| | - Miguel Mendivil-Perez
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412 SIU, Medellin, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412 SIU, Medellin, Colombia
| | - Javier E Fox
- Children's Hospital San Vicente Foundation, Pediatric Hematoncology Unit, Calle 64 # 51 D - 154, Medellín, Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412 SIU, Medellin, Colombia.
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Bedoya-Medina J, Mendivil-Perez M, Rey-Suarez P, Jimenez-Del-Rio M, Núñez V, Velez-Pardo C. L-amino acid oxidase isolated from Micrurus mipartitus snake venom (MipLAAO) specifically induces apoptosis in acute lymphoblastic leukemia cells mostly via oxidative stress-dependent signaling mechanism. Int J Biol Macromol 2019; 134:1052-1062. [PMID: 31129208 DOI: 10.1016/j.ijbiomac.2019.05.174] [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] [Received: 03/29/2019] [Revised: 05/06/2019] [Accepted: 05/14/2019] [Indexed: 12/27/2022]
Abstract
The effect of Micrurus mipartitus snake venom as a therapeutic alternative for T-acute lymphoblastic leukemia (ALL) is still unknown. This study was aimed to evaluate the cytotoxic effect of M. mipartitus snake venom and a new L-amino acid oxidase (LAAO), named MipLAAO, on human peripheral blood lymphocytes (PBL) and on T-ALL cells (Jurkat), and its mechanism of action. PBL and Jurkat cells were treated with venom and MipLAAO, and morphological changes in the cell nucleus/DNA, mitochondrial membrane potential, levels of intracellular reactive oxygen species and cellular apoptosis markers were determined by fluorescence microscopy, flow cytometry and pharmacological inhibition. Venom and MipLAAO induced apoptotic cell death in Jurkat cells, but not in PBL, in a dose-response manner. Additionally, venom and MipLAAO increased dichlorofluorescein fluorescence intensity, indicative of H2O2 production, increased DJ-1 Cys106-sulfonate, as a marker of intracellular stress and induced the up-regulation of PUMA, p53 and phosphorylation of c-JUN. Additionally, it increased the expression of apoptotic CASPASE-3. In conclusion, M. mipartitus venom and MipLAAO selectively induces apoptosis in Jurkat cells through a H2O2-mediated signaling pathway dependent mostly on CASPASE-3 pathway. Our findings support the potential use of M. mipartitus snake venom compounds as a potential treatment for T-ALL.
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Affiliation(s)
- Jesus Bedoya-Medina
- Programa de Ofidismo y Escorpionismo, Universidad de Antioquia, Medellín, Colombia
| | - Miguel Mendivil-Perez
- Grupo de Neurociencias, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, bloque 1, laboratorio 412, SIU, Medellín, Colombia
| | - Paola Rey-Suarez
- Programa de Ofidismo y Escorpionismo, Universidad de Antioquia, Medellín, Colombia
| | - Marlene Jimenez-Del-Rio
- Grupo de Neurociencias, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, bloque 1, laboratorio 412, SIU, Medellín, Colombia
| | - Vitelbina Núñez
- Programa de Ofidismo y Escorpionismo, Universidad de Antioquia, Medellín, Colombia; Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Carlos Velez-Pardo
- Grupo de Neurociencias, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, bloque 1, laboratorio 412, SIU, Medellín, Colombia.
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Spicer TP, Gardiner DL, Schoenen FJ, Roy S, Griffin PR, Chase P, Scampavia L, Hodder P, Trenholme KR. Identification of Antimalarial Inhibitors Using Late-Stage Gametocytes in a Phenotypic Live/Dead Assay. SLAS DISCOVERY 2018; 24:38-46. [PMID: 30142014 DOI: 10.1177/2472555218796410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Malaria remains a major cause of morbidity and mortality worldwide with ~3.3 billion people at risk of contracting malaria and an estimated 450,000 deaths each year. While tools to reduce the infection prevalence to low levels are currently under development, additional efforts will be required to interrupt transmission. Transmission between human host and vector by the malaria parasite involves gametogenesis in the host and uptake of gametocytes by the mosquito vector. This stage is a bottleneck for reproduction of the parasite, making it a target for small-molecule drug discovery. Targeting this stage, we used whole Plasmodium falciparum gametocytes from in vitro culture and implemented them into 1536-well plates to create a live/dead phenotypic antigametocyte assay. Using specialized equipment and upon further validation, we screened ~150,000 compounds from the NIH repository currently housed at Scripps Florida. We identified 100 primary screening hits that were tested for concentration response. Additional follow-up studies to determine specificity, potency, and increased efficacy of the antigametocyte candidate compounds resulted in a starting point for initial medicinal chemistry intervention. From this, 13 chemical analogs were subsequently tested as de novo powders, which confirmed original activity from the initial analysis and now provide a point of future engagement.
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Affiliation(s)
- Timothy P Spicer
- 1 Department of Molecular Medicine, The Scripps Research Institute, Scripps Florida, Jupiter, FL, USA.,2 School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Donald L Gardiner
- 2 School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Frank J Schoenen
- 3 The University of Kansas Specialized Chemistry Center, Lawrence, KS,USA
| | - Sudeshna Roy
- 3 The University of Kansas Specialized Chemistry Center, Lawrence, KS,USA.,4 The University of Mississippi, Oxford, MS
| | - Patrick R Griffin
- 1 Department of Molecular Medicine, The Scripps Research Institute, Scripps Florida, Jupiter, FL, USA
| | - Peter Chase
- 1 Department of Molecular Medicine, The Scripps Research Institute, Scripps Florida, Jupiter, FL, USA.,5 BMS, Hopewell, NJ
| | - Louis Scampavia
- 1 Department of Molecular Medicine, The Scripps Research Institute, Scripps Florida, Jupiter, FL, USA
| | - Peter Hodder
- 1 Department of Molecular Medicine, The Scripps Research Institute, Scripps Florida, Jupiter, FL, USA.,6 Amgen, Inc., Thousand Oaks, CA, USA
| | - Katharine R Trenholme
- 2 School of Medicine, University of Queensland, Herston, Queensland, Australia.,7 Department of Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
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Dioscin inhibits colon cancer cells' growth by reactive oxygen species-mediated mitochondrial dysfunction and p38 and JNK pathways. Anticancer Drugs 2018; 29:234-242. [PMID: 29389802 DOI: 10.1097/cad.0000000000000590] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Dioscin is a natural steroid saponin derived from several plants that shows potent anticancer effects against a variety of cancer cells. Here, we investigated the antitumor effect of dioscin against human colon cancer cells and evaluated the molecular mechanism involved in this process. The cell cytotoxicity was studied by the MTT assay and BrdU incorporation. The proapoptotic mechanism of dioscin was characterized by flow cytometry analysis. A western blot and an immunofluorescence staining were used to investigate how dioscin induces apoptosis in vitro. In our study, dioscin could significantly inhibit the growth of colon cancer cells in a time-dependent and dose-dependent manner. Dioscin induces apoptosis and reactive oxygen species (ROS) generation, promoting the disruption of mitochondrial membrane potential, Bax translocation to the mitochondria, cytochrome C release to cytosol, activations of caspase-9/3, PARP cleavage, and subsequent apoptosis. Dioscin-induced apoptosis was accompanied by sustained phosphorylation of JNK, p38-MAPK. N-acetyl-L-cysteine, a scavenger of ROS, significantly reversed dioscin-induced cell death and activation of JNK and p38. Collectively, the data indicate that the induction of apoptosis by dioscin is mediated through ROS proteins, which are critical upstream signals for JNK/p38-MAPK activation.
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Ruiz-Moreno C, Velez-Pardo C, Jimenez-Del-Rio M. Minocycline induces apoptosis in acute lymphoblastic leukemia Jurkat cells. Toxicol In Vitro 2018; 50:336-346. [PMID: 29625165 DOI: 10.1016/j.tiv.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 03/06/2018] [Accepted: 03/28/2018] [Indexed: 02/08/2023]
Affiliation(s)
- Cristian Ruiz-Moreno
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia.
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia.
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia.
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Ruiz-Moreno C, Jimenez-Del-Rio M, Sierra-Garcia L, Lopez-Osorio B, Velez-Pardo C. Vitamin E synthetic derivate-TPGS-selectively induces apoptosis in jurkat t cells via oxidative stress signaling pathways: implications for acute lymphoblastic leukemia. Apoptosis 2018; 21:1019-32. [PMID: 27364951 DOI: 10.1007/s10495-016-1266-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) is a water-soluble derivative of natural vitamin E commonly used as a drug delivery agent. Recently, TPGS alone has been reported to induce cell death in lung, breast and prostate cancer. However, the effect of TPGS on cancer cell viability remains unclear. Thus, this study was aimed to evaluate the cytotoxic effect of TPGS on human periphral blood lymphocytes (PBL) and on T cell acute lymphocytic leukemia (ALL) Jurkat clone E6-1 cells and its possible mechanism of action. PBL and Jurkat cells were treated with TPGS (10, 20, 40, 60, and 80 μM), and morphological changes in the cell nucleus, mitochondrial membrane potential (ΔΨm), and intracellular reactive oxygen species levels were determined by immune-fluorescence microscopy and flow cytometry. Cellular apoptosis markers were also evaluated by immunocytochemistry. In this study, TPGS induced apoptotic cell death in Jurkat cells, but not in PBL, in a dose-response manner with increasing nuclear DNA fragmentation, increasing cell cycle arrest, and decreasing ΔΨm. Additionally, TPGS increased dichlorofluorescein fluorescence intensity, indicative of H2O2 production, in a dose-independent fashion. TPGS increased DJ-1 Cys(106)-sulfonate, as a marker of intracellular stress and induced the activation of NF-κB, p53 and c-Jun transcription factors. Additionally, it increased the expression of apoptotic markers Bcl-2 related pro-apoptotic proteins Bax and PUMAand activated caspase-3. The antioxidant N-acetyl-L-cysteine and known pharmacological inhibitors protected the cells from the TPGS induced effects. In conclusion, TPGS selectively induces apoptosis in Jurkat cells through two independent but complementary H2O2-mediated signaling pathways. Our findings support the use of TPGS as a potential treatment for ALL.
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Affiliation(s)
- Cristian Ruiz-Moreno
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia, Calle 70 N° 52-21, and Calle 62 #52-59, Building 1, Room 412, SIU, P. O. Box 1226, Medellín, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia, Calle 70 N° 52-21, and Calle 62 #52-59, Building 1, Room 412, SIU, P. O. Box 1226, Medellín, Colombia
| | - Ligia Sierra-Garcia
- Material Science Group, Faculty of Chemistry, University of Antioquia, Calle 70 N° 52-21, and Calle 62 #52-59, Building 1, Room 310, SIU, P. O. Box 1226, Medellin, Colombia
| | - Betty Lopez-Osorio
- Material Science Group, Faculty of Chemistry, University of Antioquia, Calle 70 N° 52-21, and Calle 62 #52-59, Building 1, Room 310, SIU, P. O. Box 1226, Medellin, Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Faculty of Medicine, Medical Research Institute, University of Antioquia, Calle 70 N° 52-21, and Calle 62 #52-59, Building 1, Room 412, SIU, P. O. Box 1226, Medellín, Colombia.
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12
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Kalenderoglou N, Macpherson T, Wright KL. Cannabidiol Reduces Leukemic Cell Size - But Is It Important? Front Pharmacol 2017; 8:144. [PMID: 28392768 PMCID: PMC5364234 DOI: 10.3389/fphar.2017.00144] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 03/07/2017] [Indexed: 12/14/2022] Open
Abstract
The anti-cancer effect of the plant-derived cannabinoid, cannabidiol, has been widely demonstrated both in vivo and in vitro. However, this body of preclinical work has not been translated into clinical use. Key issues around this failure can be related to narrow dose effects, the cell model used and incomplete efficacy. A model of acute lymphoblastic disease, the Jurkat T cell line, has been used extensively to study the cannabinoid system in the immune system and cannabinoid-induced apoptosis. Using these cells, this study sought to investigate the outcome of those remaining viable cells post-treatment with cannabidiol, both in terms of cell size and tracking any subsequent recovery. The phosphorylation status of the mammalian Target of Rapamycin (mTOR) signaling pathway and the downstream target ribosomal protein S6, were measured. The ability of cannabidiol to exert its effect on cell viability was also evaluated in physiological oxygen conditions. Cannabidiol reduced cell viability incompletely, and slowed the cell cycle with fewer cells in the G2/M phase of the cell cycle. Cannabidiol reduced phosphorylation of mTOR, PKB and S6 pathways related to survival and cell size. The remaining population of viable cells that were cultured in nutrient rich conditions post-treatment were able to proliferate, but did not recover to control cell numbers. However, the proportion of viable cells that were gated as small, increased in response to cannabidiol and normally sized cells decreased. This proportion of small cells persisted in the recovery period and did not return to basal levels. Finally, cells grown in 12% oxygen (physiological normoxia) were more resistant to cannabidiol. In conclusion, these results indicate that cannabidiol causes a reduction in cell size, which persists post-treatment. However, resistance to cannabidiol under physiological normoxia for these cells would imply that cannabidiol may not be useful in the clinic as an anti-leukemic agent.
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Affiliation(s)
- Nikoletta Kalenderoglou
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine Lancaster University Lancaster, UK
| | - Tara Macpherson
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine Lancaster University Lancaster, UK
| | - Karen L Wright
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine Lancaster University Lancaster, UK
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Grobárová V, Vališ K, Talacko P, Pavlů B, Hernychová L, Nováková J, Stodůlková E, Flieger M, Novák P, Černý J. Quambalarine B, a Secondary Metabolite from Quambalaria cyanescens with Potential Anticancer Properties. JOURNAL OF NATURAL PRODUCTS 2016; 79:2304-2314. [PMID: 27571379 DOI: 10.1021/acs.jnatprod.6b00362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Quambalarine B (QB) is a secondary metabolite produced by the basidiomycete Quambalaria cyanescens with potential anticancer activity. Here we report that QB at low micromolar concentration inhibits proliferation of several model leukemic cell lines (Jurkat, NALM6, and REH), whereas higher concentrations induce cell death. By contrast, the effect of QB on primary leukocytes (peripheral blood mononuclear cells) is significantly milder with lower toxicity and cytostatic activity. Moreover, QB inhibited expression of the C-MYC oncoprotein and mRNA expression of its target genes, LDHA, PKM2, and GLS. Finally, QB blocked the phosphorylation of P70S6K, a downstream effector kinase in mTOR signaling that regulates translation of C-MYC. This observation could explain the molecular mechanism behind the antiproliferative and cytotoxic effects of QB on leukemic cells. Altogether, our results establish QB as a promising molecule in anticancer treatment.
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Affiliation(s)
- Valéria Grobárová
- Department of Cell Biology, Faculty of Science, Charles University , Viničná 7, 128 43 Prague 2, Czech Republic
| | - Karel Vališ
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University , Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Pavel Talacko
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University , Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Barbora Pavlů
- Department of Cell Biology, Faculty of Science, Charles University , Viničná 7, 128 43 Prague 2, Czech Republic
| | - Lucie Hernychová
- Department of Cell Biology, Faculty of Science, Charles University , Viničná 7, 128 43 Prague 2, Czech Republic
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Jana Nováková
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Eva Stodůlková
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Miroslav Flieger
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Petr Novák
- Institute of Microbiology, v.v.i., The Czech Academy of Sciences , Vídeňská 1083, 142 20 Prague 4, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University , Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Jan Černý
- Department of Cell Biology, Faculty of Science, Charles University , Viničná 7, 128 43 Prague 2, Czech Republic
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Diaz-Aguirre V, Velez-Pardo C, Jimenez-Del-Rio M. Fructose sensitizes Jurkat cells oxidative stress-induced apoptosis via caspase-dependent and caspase-independent mechanisms. Cell Biol Int 2016; 40:1162-1173. [DOI: 10.1002/cbin.10653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/31/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Viviana Diaz-Aguirre
- Neuroscience Research Group; Faculty of Medicine; Medical Research Institute; University of Antioquia (UdeA); Calle 70 No. 52-21 and Calle 62 # 52-59, Building 1, Room 412 SIU Medellin Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group; Faculty of Medicine; Medical Research Institute; University of Antioquia (UdeA); Calle 70 No. 52-21 and Calle 62 # 52-59, Building 1, Room 412 SIU Medellin Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group; Faculty of Medicine; Medical Research Institute; University of Antioquia (UdeA); Calle 70 No. 52-21 and Calle 62 # 52-59, Building 1, Room 412 SIU Medellin Colombia
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15
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Mendivil-Perez M, Velez-Pardo C, Jimenez-Del-Rio M. Neuroprotective Effect of the LRRK2 Kinase Inhibitor PF-06447475 in Human Nerve-Like Differentiated Cells Exposed to Oxidative Stress Stimuli: Implications for Parkinson's Disease. Neurochem Res 2016; 41:2675-2692. [PMID: 27394417 DOI: 10.1007/s11064-016-1982-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 12/12/2022]
Abstract
Leucine-rich repeat kinase 2 (LRRK2) has been implicated in oxidative stress (OS) and neurodegeneration in Parkinson's disease (PD). However, the pathophysiological mechanism of the LRRK2 kinase in neurons under stress stimuli is not yet understood. We demonstrate that rotenone (ROT), a mitochondria complex I inhibitor frequently used to generate in vitro and in vivo experimental models of PD, induces LRRK2 phosphorylation at serine 935 p-(S935) concomitant with cell death in nerve-like differentiated cells (NLCs). Indeed, ROT (50 µM) at 6 h exposure significantly increased reactive oxygen species (ROS) (~100 %), p-(S935)-LRRK2 kinase [~2 f(old)-(i)ncrease] level, induced nuclei condensation/fragmentation (16 %), increased the expression of NF-κB (5.6 f-i), p53 (5.3 f-i), c-Jun (5.4 f-i) transcription factors, activated caspase-3 (8.0 f-i) and AIF (6.8 f-i) proteins; but significantly decreased mitochondrial membrane potential (∆Ψm, ~21 %), indicative of apoptosis -a type of regulated cell death process- compared to untreated cells. Strikingly, the LRRK2 kinase inhibitor PF-06447475 (PF-475, 1 µM) protects NLCs against ROT induced noxious effect. The inhibitor not only blocked the p-(S935)-LRRK2 kinase phosphorylation but also completely abolished ROS, and significantly reversed all ROT-induced apoptosis signaling and OS associated markers to comparable control values. We conclude that wild-type LRRK2 may act as a pro-apoptotic factor under OS stimuli. Our findings suggest an association between OS and LRRK2 phosphorylation in the NLCs death process, as PD model. Therefore, the pharmacological inhibition of LRRK2 might help to understand the OS-mediated kinase activation in PD neurodegenerative disorder.
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Affiliation(s)
- Miguel Mendivil-Perez
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412, SIU Medellin, Colombia.
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MicroRNA-208a Silencing Attenuates Doxorubicin Induced Myocyte Apoptosis and Cardiac Dysfunction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:597032. [PMID: 26137188 PMCID: PMC4475537 DOI: 10.1155/2015/597032] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 05/31/2015] [Indexed: 12/17/2022]
Abstract
AIMS GATA4 depletion is a distinct mechanism by which doxorubicin leads to cardiomyocyte apoptosis, and preservation of GATA4 mitigates doxorubicin induced myocyte apoptosis and cardiac dysfunction. We investigated a novel approach of attenuating doxorubicin induced cardiac toxicity by silencing miR-208a, a heart specific microRNA known to target GATA4. METHODS AND RESULTS Eight-week-old female Balb/C mice were randomly assigned to sham, antagomir, and control groups. Antagomir group were pretreated with miR-208a antagomir 4 days before doxorubicin administration. At day 0, control and antagomir groups received 20 mg/kg of doxorubicin, while sham mice received phosphate buffered solution. Echocardiography was done at day 7, after which animals were sacrificed and hearts harvested and assessed for apoptosis and expression of miR-208a, GATA4, and BCL-2. Doxorubicin significantly upregulated miR-208a, downregulated GATA4, and increased myocyte apoptosis, with resulting decrease in cardiac function. In contrast, therapeutic silencing of miR-208a salvaged GATA4 and BCL-2 and decreased apoptosis, with improvement in cardiac function. CONCLUSION Doxorubicin upregulates miR-208a and promotes cardiomyocyte apoptosis, while therapeutic silencing of miR-208a attenuates doxorubicin induced myocyte apoptosis with subsequent improvement in cardiac function. These novel results highlight the therapeutic potential of targeting miR-208a to prevent doxorubicin cardiotoxicity.
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Wang Z, Wang J, Xie R, Liu R, Lu Y. Mitochondria-derived reactive oxygen species play an important role in Doxorubicin-induced platelet apoptosis. Int J Mol Sci 2015; 16:11087-100. [PMID: 25988386 PMCID: PMC4463691 DOI: 10.3390/ijms160511087] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/04/2015] [Accepted: 05/11/2015] [Indexed: 11/19/2022] Open
Abstract
Doxorubicin (DOX) is an effective chemotherapeutic agent; however; its use is limited by some side effects; such as cardiotoxicity and thrombocytopenia. DOX-induced cardiotoxicity has been intensively investigated; however; DOX-induced thrombocytopenia has not been clearly elucidated. Here we show that DOX-induced mitochondria-mediated intrinsic apoptosis and glycoprotein (GP)Ibα shedding in platelets. DOX did not induce platelet activation; whereas; DOX obviously reduced adenosine diphosphate (ADP)- and thrombin-induced platelet aggregation; and impaired platelet adhesion on the von Willebrand factor (vWF) surface. In addition; we also show that DOX induced intracellular reactive oxygen species (ROS) production and mitochondrial ROS generation in a dose-dependent manner. The mitochondria-targeted ROS scavenger Mito-TEMPO blocked intracellular ROS and mitochondrial ROS generation. Furthermore; Mito-TEMPO reduced DOX-induced platelet apoptosis and GPIbα shedding. These data indicate that DOX induces platelet apoptosis; and impairs platelet function. Mitochondrial ROS play a pivotal role in DOX-induced platelet apoptosis and GPIbα shedding. Therefore; DOX-induced platelet apoptosis might contribute to DOX-triggered thrombocytopenia; and mitochondria-targeted ROS scavenger would have potential clinical utility in platelet-associated disorders involving mitochondrial oxidative damage.
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Affiliation(s)
- Zhicheng Wang
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
| | - Jie Wang
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
| | - Rufeng Xie
- Blood Engineering Laboratory, Shanghai Blood Center, Shanghai 200051, China.
| | - Ruilai Liu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
| | - Yuan Lu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
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