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Rani R, Sethi K, Gupta S, Virmani N, Kumar S, Kumar R. Intracellular ROS production and apoptotic effect of quinoline and isoquinoline alkaloids on the growth of Trypanosoma evansi. Acta Trop 2023; 245:106980. [PMID: 37419379 DOI: 10.1016/j.actatropica.2023.106980] [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: 03/09/2023] [Revised: 05/29/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
Trypanosoma evansi, a hemoflagellate poses huge economic threat to the livestock industry of several countries of Asia, Africa, South America and Europe continents of the world. Limited number of available chemical drugs, incidents of growing drug resistance, and related side effects encouraged the use of herbal substitutes. In the present investigation, the impact of six alkaloids of quinoline and isoquinoline group was evaluated on the growth and multiplication of Trypanosoma evansi and their cytotoxic effect was examined on horse peripheral blood mononuclear cells in an in vitro system. Quinine, quinindine, cinchonine, cinchonidine, berbamine and emetine showed potent trypanocidal activities with IC50/24 h values 6.631 ± 0.244, 8.718 ± 0.081, 16.96 ± 0.816, 33.38 ± 0.653, 2.85 ± 0.065, and 3.12 ± 0.367 µM, respectively, which was comparable to the standard anti-trypanosomal drug, quinapyramine sulfate (20 µM). However, in the cytotoxicity assay, all the drugs showed dose dependent cytotoxic effect and quinine, berbamine and emetine showed selectivity index more than 5, based of ration of CC50 to IC50. Among the selected alkaloids, quinidine, berbamine and emetine exhibited higher apoptotic effects in T. evansi. Likewise, drug treated parasites showed a dose-dependent and time-dependent increase in reactive oxygen species (ROS) production. Therefore, increased apoptosis in combination with ROS generation could be responsible for the observed trypanocidal effect which could be further evaluated in T. evansi-infected mice model.
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Affiliation(s)
- Ruma Rani
- ICAR-National Research Centre on Equines, Hisar, Haryana, 125001, India
| | - Khushboo Sethi
- ICAR-National Research Centre on Equines, Hisar, Haryana, 125001, India
| | - Snehil Gupta
- Department of Veterinary Parasitology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, 125001, India
| | - Nitin Virmani
- ICAR-National Research Centre on Equines, Hisar, Haryana, 125001, India
| | - Sanjay Kumar
- ICAR-National Research Centre on Equines, Hisar, Haryana, 125001, India
| | - Rajender Kumar
- ICAR-National Research Centre on Equines, Hisar, Haryana, 125001, India.
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Synthesis, DNA binding and cytotoxic activity of pyrimido[4′,5′:4,5]thieno(2,3-b)quinoline with 9-hydroxy-4-(3-diethylaminopropylamino) and 8-methoxy-4-(3-diethylaminopropylamino) substitutions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 178:1-9. [DOI: 10.1016/j.jphotobiol.2017.10.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 10/11/2017] [Accepted: 10/24/2017] [Indexed: 11/22/2022]
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3
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Itoh T, Hatae N, Nishiyama T, Choshi T, Hibino S, Yoshimura T, Ishikura M. Synthesis and cytotoxicity of pyrido[4,3-b]carbazole alkaloids against HCT-116 and HL-60 cells. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2068-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vélez C, Soto J, Ríos K, Silva L, Hernandez W, Rivera LA, Ortiz-Colón AI, Cox O, Zayas B. Toxicity and Apoptosis Related Effects of Benzimidazo [3,2-α] Quinolinium Salts Upon Human Lymphoma Cells. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2017; 11:54-65. [PMID: 28761559 PMCID: PMC5510565 DOI: 10.2174/1874104501711010054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/22/2017] [Accepted: 04/24/2017] [Indexed: 01/05/2023]
Abstract
OBJECTIVES The present study evaluates novel cationic quinoline derivatives known as benzimidazo[3,2-a]quinolinium salts (BQS) named NBQ-48 and ABQ-48 that have structural similarities to known anti-cancer substances such as ellipticine and berberine. METHODS Toledo human lymphoma (ATCC CRL2631) cells were treated for 24 to 48 hours. Apoptosis related endpoints such as cell cycle arrest, mitochondrial damage, RNS and ROS generation and the activity of several apoptosis related proteins such as caspases and apoptosis inducing factor (AIF) were studied using fluorescence staining and western blot respectively. RESULTS Results indicated a higher toxicity from the amino substituted ABQ-48 versus the NBQ-48 (GI50's of 50uM versus 100uM respectively). Both compounds induced cell death through various apoptosis related endpoints including a decrease in mitochondrial membrane potential with an increase in ROS and activation of the effector caspase 3. Interestingly, AIF release was observed on cells treated with the amino substituted ABQ-48 but not on the nitro substituted NBQ-48 samples suggesting a caspase independent mechanism for ABQ-48. CONCLUSIONS The results obtained presents the toxic effects of two novel benzimidazo[3,2-a]quinolinium salts in human lymphoma tumor cells. The identified mechanism of action includes multiple apoptosis related effects. Furthermore the data presents a clear variation in caspase dependent or independent mechanism for each compound.
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Affiliation(s)
- Christian Vélez
- Universidad Metropolitana, School of Environmental Affairs, San Juan, Puerto Rico
| | - Jessica Soto
- Universidad Metropolitana, School of Environmental Affairs, San Juan, Puerto Rico
| | - Karoline Ríos
- Universidad Metropolitana, School of Environmental Affairs, San Juan, Puerto Rico
| | - Luz Silva
- Institute of Biomedical and Forensic Sciences Research of Puerto Rico, San Juan, Puerto Rico
| | - Wigberto Hernandez
- Department of Chemistry University of Puerto Rico, San Juan, Puerto Rico
| | - Luis A Rivera
- Department of Chemistry, University of Puerto Rico at Mayaguez, San Juan, Puerto Rico
| | - Ana I Ortiz-Colón
- Department of Anatomy and Neurobiology, University of Puerto Rico School of Medicine, San Juan, Puerto Rico
| | - Osvaldo Cox
- Universidad Metropolitana, School of Environmental Affairs, San Juan, Puerto Rico
| | - Beatriz Zayas
- Universidad Metropolitana, School of Environmental Affairs, San Juan, Puerto Rico
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Fong Y, Wu CY, Chang KF, Chen BH, Chou WJ, Tseng CH, Chen YC, Wang HMD, Chen YL, Chiu CC. Dual roles of extracellular signal-regulated kinase (ERK) in quinoline compound BPIQ-induced apoptosis and anti-migration of human non-small cell lung cancer cells. Cancer Cell Int 2017; 17:37. [PMID: 28286419 PMCID: PMC5339964 DOI: 10.1186/s12935-017-0403-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 02/16/2017] [Indexed: 02/06/2023] Open
Abstract
Background 2,9-Bis[2-(pyrrolidin-1-yl)ethoxy]-6-{4-[2-(pyrrolidin-1-yl)ethoxy] phenyl}-11H-indeno[1,2-c]quinoline-11-one (BPIQ), is a synthetic quinoline analog. A previous study showed the anti-cancer potential of BPIQ through modulating mitochondrial-mediated apoptosis. However, the effect of BPIQ on cell migration, an index of cancer metastasis, has not yet been examined. Furthermore, among signal pathways involved in stresses, the members of the mitogen-activated protein kinase (MAPK) family are crucial for regulating the survival and migration of cells. In this study, the aim was to explore further the role of MAPK members, including JNK, p38 and extracellular signal-regulated kinase (ERK) in BPIQ-induced apoptosis and anti-migration of human non-small cell lung cancer (NSCLC) cells. Methods Western Blot assay was performed for detecting the activation of MAPK members in NSCLC H1299 cells following BPIQ administration. Cellular proliferation was determined using a trypan blue exclusion assay. Cellular apoptosis was detected using flow cytometer-based Annexin V/propidium iodide dual staining. Cellular migration was determined using wound-healing assay and Boyden’s chamber assay. Zymography assay was performed for examining MMP-2 and -9 activities. The assessment of MAPK inhibition was performed for further validating the role of JNK, p38, and ERK in BPIQ-induced growth inhibition, apoptosis, and migration of NSCLC cells. Results Western Blot assay showed that BPIQ treatment upregulates the phosphorylated levels of both MAPK proteins JNK and ERK. However, only ERK inhibitor rescues BPIQ-induced growth inhibition of NSCLC H1299 cells. The results of Annexin V assay further confirmed the pro-apoptotic role of ERK in BPIQ-induced cell death of H1299 cells. The results of wound healing and Boyden chamber assays showed that sub-IC50 (sub-lethal) concentrations of BPIQ cause a significant inhibition of migration in H1299 cells accompanied with downregulating the activity of MMP-2 and -9, the motility index of cancer cells. Inhibition of ERK significantly enhances BPIQ-induced anti-migration of H1299 cells. Conclusions Our results suggest ERK may play dual roles in BPIQ-induced apoptosis and anti-migration, and it would be worthwhile further developing strategies for treating chemoresistant lung cancers through modulating ERK activity. Electronic supplementary material The online version of this article (doi:10.1186/s12935-017-0403-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yao Fong
- Department of Thoracic Surgery, Chi-Mei Medical Center, Tainan, 710 Taiwan
| | - Chang-Yi Wu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, 804 Taiwan.,Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Kuo-Feng Chang
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Bing-Hung Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan.,The Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 804 Taiwan
| | - Wan-Ju Chou
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Chih-Hua Tseng
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Yen-Chun Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 402 Taiwan
| | - Yeh-Long Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
| | - Chien-Chih Chiu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, 804 Taiwan.,Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807 Taiwan.,Translational Research Center, Cancer Center and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807 Taiwan.,Research Center for Environment Medicine, Kaohsiung Medical University, Kaohsiung, 807 Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807 Taiwan
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Chiu CC, Chou HL, Chen BH, Chang KF, Tseng CH, Fong Y, Fu TF, Chang HW, Wu CY, Tsai EM, Lin SR, Chen YL. BPIQ, a novel synthetic quinoline derivative, inhibits growth and induces mitochondrial apoptosis of lung cancer cells in vitro and in zebrafish xenograft model. BMC Cancer 2015; 15:962. [PMID: 26672745 PMCID: PMC4682281 DOI: 10.1186/s12885-015-1970-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/01/2015] [Indexed: 11/30/2022] Open
Abstract
Background 2,9-Bis[2-(pyrrolidin-1-yl)ethoxy]-6-{4-[2-(pyrrolidin-1-yl)ethoxy] phenyl}-11H-indeno[1,2-c]quinolin-11-one (BPIQ) is a derivative from 6-arylindeno[1,2-c]quinoline. Our previous study showed the anti-cancer potential of BPIQ compared to its two analogues topotecan and irinotecan. In the study, the aim is to investigate the potency and the mechanism of BPIQ against lung cancer cells. Methods Both in vitro and zebrafish xenograft model were performed to examine the anti-lung cancer effect of BPIQ. Flow cytometer-based assays were performed for detecting apoptosis and cell cycle distribution. Western blot assay was used for detecting the changes of apoptotic and cell cycle-associated proteins. siRNA knockdown assay was performed for confirming the apoptotic role of Bim. Results Both in vitro and zebrafish xenograft model demonstrated the anti-lung cancer effect of BPIQ. BPIQ-induced proliferative inhibition of H1299 cells was achieved through the induction of G2/M-phase arrest and apoptosis. The results of Western blot showed that BPIQ-induced G2/M-phase arrest was associated with a marked decrease in the protein levels of cyclin B and cyclin-dependent kinase 1 (CDK1). The up-regulation of pro-apoptotic Bad, Bim and down-regulation of pro-survival XIAP and survivin was observed following BPIQ treatment. Conclusions BPIQ-induced anti-lung cancer is involved in mitochondrial apoptosis. BPIQ could be a promising anti-lung cancer drug for further applications. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1970-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan. .,Translational Research Center, Cancer Center, Department of Medical Research, and Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Research Center for Environment Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| | - Han-Lin Chou
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| | - Bing-Hung Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| | - Kuo-Feng Chang
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Chih-Hua Tseng
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Research Center for Environment Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Yao Fong
- Department of Thoracic Surgery, Chi-Mei Medical Center, Tainan, 710, Taiwan.
| | - Tzu-Fun Fu
- Department of Medical Laboratory Science and Biotechnology, School of Medicine, National Cheng Kung University, Tainan, 701, Taiwan.
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University; Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Chang-Yi Wu
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
| | - Eing-Mei Tsai
- Research Center for Environment Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Shinne-Ren Lin
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Yeh-Long Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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Ghasemian M, Mahdavi M, Zare P, Ali Hosseinpour Feizi M. Spiroquinazolinone-induced cytotoxicity and apoptosis in K562 human leukemia cells: alteration in expression levels of Bcl-2 and Bax. J Toxicol Sci 2015; 40:115-26. [PMID: 25743751 DOI: 10.2131/jts.40.115] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Spiroquinazolinone compounds have been considered as a new series of potent apoptosis-inducing agents. In this study, anti-proliferative and apoptotic effects of the derivatives from the spiroquinazolinone family were investigated in the human chronic myeloid leukemia K562 cells. The K562 cells were treated with various concentrations of the spiroquinazolinone (10-300 µM) for 3 days and cell viability was determined by MTT growth inhibition assay. 4t-QTC was more active among these compounds with IC50 of 50 ± 3.6 µM and was selected for further studies. Apoptosis, as the mechanism of cell death was investigated morphologically by acridine orange/ethidium bromide (AO/EtBr) double staining, cell surface expression assay of phosphatidyl serine by Annexin V/PI technique, as well as the formation of DNA ladder. The K562 cells underwent apoptosis upon a single dose (at IC50 value) of the 4t-QTC compound, and over-expressed caspase-3 expression by more than 1.7-fold, following a 72 hr treatment. Furthermore, RT-PCR and Western blot analysis revealed that treatment of the K562 cells with 4t-QTC down-regulates and up-regulates the expression of Bcl-2 (anti-apoptotic) and Bax (pro-apoptotic), respectively. Based on the present data, it seems that these compounds from the spiroquinazolinone family are good candidates for further evaluation as an effective chemotherapeutic family acting through induction of apoptosis in chronic myeloid leukemia.
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Affiliation(s)
- Majid Ghasemian
- Department of Biology, Faculty of Natural Science, University of Tabriz, Iran
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Effects of 5,8-dimethylthieno[2,3-b]quinoline-2-carboxylic acid on the antioxidative defense and lipid membranes in Plasmodium berghei-infected erythrocytes. Exp Parasitol 2015; 155:26-34. [DOI: 10.1016/j.exppara.2015.04.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/30/2015] [Accepted: 04/29/2015] [Indexed: 12/26/2022]
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Pathan AH, Ramesh AK, Bakale RP, Naik GN, Kumar HR, Frampton CS, Rao GMA, Gudasi KB. Association of late transition metal complexes with ethyl 2-(2-(4-chlorophenylcarbamothioyl)hydrazono)propanoate: Design, synthesis and in vitro anticancer studies. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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DNA intercalative 4-butylaminopyrimido[4′,5′:4,5]thieno(2,3-b)quinoline induces cell cycle arrest and apoptosis in leukemia cells. Cancer Chemother Pharmacol 2015; 75:1121-33. [DOI: 10.1007/s00280-015-2735-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 03/23/2015] [Indexed: 12/25/2022]
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Arsenic induced neuronal apoptosis in guinea pigs is Ca2+ dependent and abrogated by chelation therapy: role of voltage gated calcium channels. Neurotoxicology 2013; 35:137-45. [PMID: 23376091 DOI: 10.1016/j.neuro.2013.01.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 12/24/2012] [Accepted: 01/21/2013] [Indexed: 11/20/2022]
Abstract
Arsenic contaminated drinking water has affected more than 200 million people globally. Chronic arsenicism has also been associated with numerous neurological diseases. One of the prime mechanisms postulated for arsenic toxicity is reactive oxygen species (ROS) mediated oxidative stress. In this study, we explored the kinetic relationship of ROS with calcium and attempted to dissect the calcium ion channels responsible for calcium imbalance after arsenic exposure. We also explored if mono- or combinational chelation therapy prevents arsenic-induced (25ppm in drinking water for 4 months) neuronal apoptosis in a guinea pig animal model. Results indicate that chronic arsenic exposure caused a significant increase in ROS followed by NO and calcium influx. This calcium influx is mainly dependent on L-type voltage gated channels that disrupt mitochondrial membrane potential, increase bax/bcl2 levels and caspase 3 activity leading to apoptosis. Interestingly, blocking of ROS could completely reduce calcium influx whereas calcium blockage partially reduced ROS increase. While in general mono- and combinational chelation therapies were effective in reversing arsenic induced alteration, combinational therapy of DMSA and MiADMSA was most effective. Our results provide evidence for the role of L-type calcium channels in regulating arsenic-induced calcium influx and DMSA+MiADMSA combinational therapy may be a better protocol than monotherapy in mitigating chronic arsenicosis.
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Intramolecular 1,3-dipolar cycloaddition reactions in the synthesis of complex annelated quinolines, α-carbolines and coumarins. Mol Divers 2012; 16:279-89. [DOI: 10.1007/s11030-012-9358-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 01/09/2012] [Indexed: 11/30/2022]
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13
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Kizek R, Adam V, Hrabeta J, Eckschlager T, Smutny S, Burda JV, Frei E, Stiborova M. Anthracyclines and ellipticines as DNA-damaging anticancer drugs: Recent advances. Pharmacol Ther 2012; 133:26-39. [DOI: 10.1016/j.pharmthera.2011.07.006] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 07/22/2011] [Indexed: 12/21/2022]
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MiADMSA reverses impaired mitochondrial energy metabolism and neuronal apoptotic cell death after arsenic exposure in rats. Toxicol Appl Pharmacol 2011; 256:241-8. [DOI: 10.1016/j.taap.2011.04.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 04/04/2011] [Accepted: 04/06/2011] [Indexed: 11/22/2022]
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15
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Molecular and cellular characterization of expanded and cryopreserved human limbal epithelial stem cells reveal unique immunological properties. Exp Eye Res 2011; 92:47-56. [DOI: 10.1016/j.exer.2010.11.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 10/15/2010] [Accepted: 11/01/2010] [Indexed: 12/24/2022]
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Won KJ, Chung KS, Lee YS, Alia MS, Pervez MK, Fatima S, Choi JH, Lee KT. Haplophytin-A induces caspase-8-mediated apoptosis via the formation of death-inducing signaling complex in human promyelocytic leukemia HL-60 cells. Chem Biol Interact 2010; 188:505-11. [PMID: 20833157 DOI: 10.1016/j.cbi.2010.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 08/26/2010] [Accepted: 09/02/2010] [Indexed: 02/08/2023]
Abstract
Haplophytin-A (10-methoxy-2,2-dimethyl-2,6-dihydro-pyrano[3,2-c]quinolin-5-one), a novel quinoline alkaloid, was isolated from the Haplophyllum acutifolium. In this study, we investigated the effect of haplophytin-A on the apoptotic activity and the molecular mechanism of action in human promyelocytic leukemia HL-60 cells. Treatment with haplophytin-A (50μM) induced classical features of apoptosis, such as, DNA fragmentation, DNA ladder formation, and the externalization of annexin-V-targeted phosphatidylserine residues in HL-60 cells. In addition, haplophytin-A triggered the activations of caspase-8, -9, and -3, and the cleavage of poly (ADP-ribose) polymerase (PARP) in HL-60 cells. In addition, haplophytin-A caused the loss of mitochondrial membrane potential (ΔΨ(m)) and the release of cytochrome c and Smac/DIABLO to the cytosol, and modulated the expression levels of Bcl-2 family proteins. We further demonstrated that knockdown of caspase-8 using its siRNA inhibited the mitochondrial translocation of tBid, the activations of caspase-9 and caspase-3, and subsequent DNA fragmentation by haplophytin-A. Furthermore, haplophytin-A-induced the formation of death-inducing signaling complex (DISC) and then activated caspase-8 in HL-60 cells. During haplophytin-A-induced apoptosis, caspase-8-stimulated tBid provide a link between the death receptor-mediated extrinsic pathway and the mitochondria- mediated intrinsic pathway. Taken together, these results suggest that the novel compound haplophytin-A play therapeutical role for leukemia via the potent apoptotic activity through the extrinsic pathway, involving the intrinsic pathway.
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Affiliation(s)
- Kyung-Jae Won
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Dongdaemun-gu, Seoul 130-701, Republic of Korea
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Shahabuddin MS, Nambiar M, Moorthy BT, Naik PL, Choudhary B, Advirao GM, Raghavan SC. A novel structural derivative of natural alkaloid ellipticine, MDPSQ, induces necrosis in leukemic cells. Invest New Drugs 2010; 29:523-33. [DOI: 10.1007/s10637-009-9379-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 12/17/2009] [Indexed: 11/24/2022]
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18
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Flora SJ, Bhatt K, Mehta A. Arsenic moiety in gallium arsenide is responsible for neuronal apoptosis and behavioral alterations in rats. Toxicol Appl Pharmacol 2009; 240:236-44. [DOI: 10.1016/j.taap.2009.05.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 05/10/2009] [Accepted: 05/12/2009] [Indexed: 10/20/2022]
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Zhang D, Shen J, Wang C, Zhang X, Chen J. GSH-dependent iNOS and HO-1 mediated apoptosis of human Jurkat cells induced by nickel(II). ENVIRONMENTAL TOXICOLOGY 2009; 24:404-414. [PMID: 18830972 DOI: 10.1002/tox.20440] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The molecular mechanisms by which nickel compounds cause immune cytotoxicity are far from understood. Our preliminary data suggested that nickel(II) induced apoptosis in Jurkat cells by mitochondrial pathway, specifically via mitochondrial membrane potential dissipation and antiapoptotic gene bcl-2 down-regulation. The main goal of this study was to further investigate the toxicity of nickel, especially the induction of reactive oxygen species (ROS) on immune cells, which finally induced apoptosis. Nickel was found to induce glutathione (GSH) depletion in a dose- and time-dependent manner. When Jurkat cells were preincubated with antioxidant N-acetylcysteine (NAC), apoptosis was inhibited distinctly, which suggested that ROS played an initial role in nickel immune toxicity. Heme oxygenase-1 (HO-1) and Nitric oxide (NO) which may play an important role in regulatory and protective processes in cells were assayed upon nickel treatment. A significant increase in HO-1 mRNA levels was detected in nickel treated cells. We confirmed that reduction of Nitrate levels in Jurkat cells was due to down-regulation of inducible nitric oxide synthase (iNOS), not endothelial nitric oxide synthase (eNOS). Expression changes of HO-1 and iNOS were markedly blocked when Jurkat cells were preincubated with NAC, suggesting that ROS resulted in HO-1 and iNOS dysfunction in Jurkat cells. We supposed that the immune toxicity of nickel(II) was mainly due to GSH depletion and finally led to apoptosis, probably via changing the expression levels of HO-1 and iNOS in human T lymphocytes.
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Pachauri V, Saxena G, Mehta A, Mishra D, Flora SJS. Combinational chelation therapy abrogates lead-induced neurodegeneration in rats. Toxicol Appl Pharmacol 2009; 240:255-64. [PMID: 19595699 DOI: 10.1016/j.taap.2009.07.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 06/30/2009] [Accepted: 07/02/2009] [Indexed: 11/18/2022]
Abstract
Lead, a ubiquitous and potent neurotoxicant causes oxidative stress which leads to numerous neurobehavioral and physiological alterations. The ability of lead to bind sulfhydryl groups or compete with calcium could be one of the reasons for its debilitating effects. In the present study, we addressed: i) if chelation therapy could circumvent the altered oxidative stress and prevent neuronal apoptosis in chronic lead-intoxicated rats, ii) whether chelation therapy could reverse biochemical and behavioral changes, and iii) if mono or combinational therapy with captopril (an antioxidant) and thiol chelating agents (DMSA/MiADMSA) is more effective than individual thiol chelator in lead-exposed rats. Results indicated that lead caused a significant increase in reactive oxygen species, nitric oxide, and intracellular free calcium levels along with altered behavioral abnormalities in locomotor activity, exploratory behavior, learning, and memory that were supported by changes in neurotransmitter levels. A fall in membrane potential, release of cytochrome c, and DNA damage indicated mitochondrial-dependent apoptosis. Most of these alterations showed significant recovery following combined therapy with captopril with MiADMSA and to a smaller extend with captopril+DMSA over monotherapy with these chelators. It could be concluded from our present results that co-administration of a potent antioxidant (like captopril) might be a better treatment protocol than monotherapy to counter lead-induced oxidative stress. The major highlight of the work is an interesting experimental evidence of the efficacy of combinational therapy using an antioxidant with a thiol chelator in reversing neurological dystrophy caused due to chronic lead exposure in rats.
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Affiliation(s)
- Vidhu Pachauri
- Division of Pharmacology and Toxicology, Defence Research and Development Establishment, Jhansi Road, Gwalior-474 001, India
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Jantová S, Repický A, Letasiová S, Cipák L. 4-Amino-3-acetylquinoline-induced apoptosis of murine L1210 leukemia cells involves ROS-mitochondrial-mediated death signaling and activation of p38 MAPK. Cell Biochem Funct 2008; 26:609-19. [PMID: 18508389 DOI: 10.1002/cbf.1485] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Quinolines are known to be multitarget agents with a broad spectrum of biological activity. In a previous study, we showed that newly prepared 4-amino-3-acetylquinoline (AAQ) possesses strong anticancer activities. In this study, we investigated whether AAQ has cytotoxicity in murine L1210 leukemia cells. Results from cell proliferation assays showed that AAQ caused significant decrease in cell number in a dose-dependent manner. The cell death induced by AAQ appeared to involve apoptosis, based on evidence from apoptotic DNA fragmentation, flow cytometry, fluorescence microscopy, and Western blot analyses. We found that AAQ-treated cells had activated p38 MAPK and that apoptosis was processed through a reactive oxygen species (ROS)-dependent mitochondrial pathway. In summary, our results suggest that AAQ can induce apoptosis, at least in part, through the activation of the p38 MAPK pathway in L1210 leukemia cells.
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Affiliation(s)
- S Jantová
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovakia.
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Tada-Oikawa S, Kato T, Kuribayashi K, Nishino K, Murata M, Kawanishi S. Critical role of hydrogen peroxide in the differential susceptibility of Th1 and Th2 cells to tributyltin-induced apoptosis. Biochem Pharmacol 2008; 75:552-61. [DOI: 10.1016/j.bcp.2007.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 09/10/2007] [Accepted: 09/11/2007] [Indexed: 10/22/2022]
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