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Bortolamiol E, Mauceri M, Piccolo R, Cavarzerani E, Demitri N, Donati C, Gandin V, Brezar SK, Kamensek U, Cemazar M, Canzonieri V, Rizzolio F, Visentin F, Scattolin T. Palladium(II)-Indenyl Complexes Bearing N-Heterocyclic Carbene (NHC) Ligands as Potent and Selective Metallodrugs toward High-Grade Serous Ovarian Cancer Models. J Med Chem 2024. [PMID: 39119630 DOI: 10.1021/acs.jmedchem.4c01203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
In this study, we synthesized novel Pd(II)-indenyl complexes using various N-heterocyclic carbene (NHC) ligands, including chelating NHC-picolyl, NHC-thioether, and diNHC ligands, and two monodentate NHCs. Transmetalation reactions between a Pd(II)-indenyl precursor and silver-NHC complexes were generally employed, except for chelating diNHC derivatives, which required direct reaction with bisimidazolium salts and potassium carbonate. Characterization included NMR, HRMS analysis, and single-crystal X-ray diffraction. In vitro on five ovarian cancer cell lines showed notable cytotoxicity, with IC50 values in the micro- and submicromolar range. Some compounds exhibited intriguing selectivity for cancer cells due to higher tumor cell uptake. Mechanistic studies revealed that monodentate NHCs induced mitochondrial damage while chelating ligands caused DNA damage. One chelating NHC-picolyl ligand showed promising cytotoxicity and selectivity in high-grade serous ovarian cancer models, supporting its consideration for preclinical study.
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Affiliation(s)
- Enrica Bortolamiol
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
| | - Matteo Mauceri
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Rachele Piccolo
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
| | - Enrico Cavarzerani
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Chiara Donati
- Dipartimento di Scienze del Farmaco, Universita di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Valentina Gandin
- Dipartimento di Scienze del Farmaco, Universita di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Simona Kranjc Brezar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska Cesta 2, SI-1000 Ljubljana, Slovenia
| | - Urska Kamensek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska Cesta 2, SI-1000 Ljubljana, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska Cesta 2, SI-1000 Ljubljana, Slovenia
| | - Vincenzo Canzonieri
- Department of Medical, Surgical and Health Sciences, Università degli Studi di Trieste, Strada di Fiume 447, 34100 Trieste, Italy
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.), IRCCS via Franco Gallini 2, 33081 Aviano, Italy
| | - Flavio Rizzolio
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.), IRCCS via Franco Gallini 2, 33081 Aviano, Italy
| | - Fabiano Visentin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
| | - Thomas Scattolin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131 Padova, Italy
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Apoptotic Cell Death via Activation of DNA Degradation, Caspase-3 Activity, and Suppression of Bcl-2 Activity: An Evidence-Based Citrullus colocynthis Cytotoxicity Mechanism toward MCF-7 and A549 Cancer Cell Lines. SEPARATIONS 2022. [DOI: 10.3390/separations9120411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
The objectives of this study are to investigate the cytotoxic effect of different Citrullus colocynthis extracts on breast and lung cancer cell lines using flow cytometry to gain mechanistic insights. C. colocynthis was extracted sequentially using the Soxhlet method. We first tested the plant extracts’ cytotoxicity on non-malignant L929 cells and cancerous breast (MCF-7) and lung (A549) cell lines. We observed that the IC50 of the methanol extract on the viability of MCF-7 and A549 cell lines was 81.08 µg/mL and 17.84 µg/mL, respectively, using the MTT assay. The aqueous and methanol extracts were less toxic when tested against the non-cancerous L929 cell line, with IC50 values of 235.48 µg/mL and 222.29 µg/mL, respectively. Then, using flow cytometry, we investigated the underlying molecular pathways with Annexin-V, Anti-Bcl-2, Caspase-3, and DNA fragmentation (TUNEL) assays. Flow cytometric and molecular marker analyses revealed that the methanol extract activated caspase-3 and inhibited Bcl-2 protein, causing early and late apoptosis, as well as cell death via DNA damage in breast and lung cancer cells. These findings indicate that the methanol extract of C. colocynthis is cytotoxic to breast and lung cancer cell lines. The total phenolic and flavonoid content analysis results showed the methanolic extract of C. colocynthis has a concentration of 326.25 μg GAE/g dwt and 274.61 μg QE/g dwt, respectively. GC-MS analysis of the methanol extract revealed phytochemicals relevant to its cytotoxicity.
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In Vitro Cytotoxicity and Spectral Analysis-Based Phytochemical Profiling of Methanol Extract of Barleria hochstetteri, and Molecular Mechanisms Underlying Its Apoptosis-Inducing Effect on Breast and Lung Cancer Cell Lines. SEPARATIONS 2022. [DOI: 10.3390/separations9100298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The objectives of this research were to carry out GC–MS and LC–MS-based phytochemical profiling of Barleria hochstetteri, as well as flow cytometry-based mechanistic investigations of the cytotoxic effect of its extracts against breast and lung cancer cell lines. This preclinical in vitro study was carried out in Saudi Arabia and India, from 11 August to 15 January 2022. Barleria hochstetteri was sequentially extracted using the Soxhlet extraction technique. Utilizing LC–MS and GC–MS methods, the phytochemical profiling was performed. Additionally, the total phenolic compounds and flavonoids were quantified in the plant extract using spectrophotometric techniques. In this study, we first examined the cytotoxicity of the plant extract on non-malignant L929 cells and on the carcinogenic MCF-7 and A549 cell lines. Then, we studied the underlying molecular pathways by means of Anti-Bcl-2, caspase-3, and DNA fragmentation (TUNEL) assays, using flow cytometry. The results revealed phenolic compounds and flavonoids to be the two major components in the methanolic extract of B. hochstetteri, with concentrations of 3210 µg GAE/g dwt and 1863 µg QE/g dwt, respectively. Results from GC–MS and LC–MS analyses revealed the presence of bioactive phytochemicals with known cytotoxicity. From the MTT assay on cell viability, the IC50 of the methanol extract for the MCF-7 and A549 cell lines were 219.67 and 144.30 µg/mL, respectively. With IC50 values of 324.24 and 266.66 µg/mL, respectively, the aqueous and methanol extracts were less toxic when tested against the non-cancerous L929 cell line. The extract caused early and late apoptosis in the tested breast and lung cancer cells by activating caspase-3 and inhibiting Bcl-2 protein, and it also caused cell death via DNA damage, based on flow cytometric and molecular marker analyses. These findings indicate that the methanol extract of B. hochstetteri was cytotoxic on breast cancer and lung cancer cell lines. To uncover cancer-fighting chemicals, there is a need for further research on B. hochstetteri, as it is a promising source of anti-cancer chemotherapeutic drugs.
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Targeting Ca2+ and Mitochondrial Homeostasis by Antipsychotic Thioridazine in Leukemia Cells. Life (Basel) 2022; 12:life12101477. [PMID: 36294912 PMCID: PMC9605445 DOI: 10.3390/life12101477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Mitochondria have pivotal roles in cellular physiology including energy metabolism, reactive oxygen species production, Ca2+ homeostasis, and apoptosis. Altered mitochondrial morphology and function is a common feature of cancer cells and the regulation of mitochondrial homeostasis has been identified as a key to the response to chemotherapeutic agents in human leukemias. Here, we explore the mechanistic aspects of cytotoxicity produced by thioridazine (TR), an antipsychotic drug that has been investigated for its anticancer potential in human leukemia cellular models. TR exerts selective cytotoxicity against human leukemia cells in vitro. A PCR array provided a general view of the expression of genes involved in cell death pathways. TR immediately produced a pulse of cytosolic Ca2+, followed by mitochondrial uptake, resulting in mitochondrial permeabilization, caspase 9/3 activation, endoplasmic reticulum stress, and apoptosis. Ca2+ chelators, thiol reducer dithiothreitol, or CHOP knockdown prevented TR-induced cell death. TR also exhibited potent cytotoxicity against BCL-2/BCL-xL-overexpressing leukemia cells. Additionally, previous studies have shown that TR exhibits potent antitumor activity in vivo in different solid tumor models. These findings show that TR induces a Ca2+-mediated apoptosis with involvement of mitochondrial permeabilization and ER stress in leukemia and it emphasizes the pharmacological potential of TR as an adjuvant in antitumor chemotherapy.
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Rodrigues T, Piccirillo S, Magi S, Preziuso A, Dos Santos Ramos V, Serfilippi T, Orciani M, Maciel Palacio Alvarez M, Luis Dos Santos Tersariol I, Amoroso S, Lariccia V. Control of Ca 2+ and metabolic homeostasis by the Na +/Ca 2+ exchangers (NCXs) in health and disease. Biochem Pharmacol 2022; 203:115163. [PMID: 35803319 DOI: 10.1016/j.bcp.2022.115163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022]
Abstract
Spatial and temporal control of calcium (Ca2+) levels is essential for the background rhythms and responses of living cells to environmental stimuli. Whatever other regulators a given cellular activity may have, localized and wider scale Ca2+ events (sparks, transients, and waves) are hierarchical determinants of fundamental processes such as cell contraction, excitability, growth, metabolism and survival. Different cell types express specific channels, pumps and exchangers to efficiently generate and adapt Ca2+ patterns to cell requirements. The Na+/Ca2+ exchangers (NCXs) in particular contribute to Ca2+ homeostasis by buffering intracellular Ca2+ loads according to the electrochemical gradients of substrate ions - i.e., Ca2+ and sodium (Na+) - and under a dynamic control of redundant regulatory processes. An interesting feature of NCX emerges from the strict relationship that connects transporter activity with cell metabolism: on the one hand NCX operates under constant control of ATP-dependent regulatory processes, on the other hand the ion fluxes generated through NCX provide mechanistic support for the Na+-driven uptake of glutamate and Ca2+ influx to fuel mitochondrial respiration. Proof of concept evidence highlights therapeutic potential of preserving a timed and balanced NCX activity in a growing rate of diseases (including excitability, neurodegenerative, and proliferative disorders) because of an improved ability of stressed cells to safely maintain ion gradients and mitochondrial bioenergetics. Here, we will summarize and review recent works that have focused on the pathophysiological roles of NCXs in balancing the two-way relationship between Ca2+ signals and metabolism.
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Affiliation(s)
- Tiago Rodrigues
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil.
| | - Silvia Piccirillo
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
| | - Simona Magi
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
| | - Alessandra Preziuso
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
| | - Vyctória Dos Santos Ramos
- Interdisciplinary Center for Biochemistry Investigation (CIIB), University of Mogi das Cruzes (UMC), Mogi das Cruzes, SP, Brazil
| | - Tiziano Serfilippi
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
| | - Monia Orciani
- Department of Clinical and Molecular Sciences, Histology, University "Politecnica delle Marche", Ancona, Italy.
| | - Marcela Maciel Palacio Alvarez
- Department of Biochemistry, São Paulo School of Medicine, Federal University of São Paulo (Unifesp) São Paulo, SP, Brazil
| | | | - Salvatore Amoroso
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
| | - Vincenzo Lariccia
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Ancona, Italy.
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Lighvan ZM, Khonakdar HA, Akbari A, Jahromi MD, Ramezanpour A, Kermagoret A, Heydari A, Jabbari E. Synthesis and biological evaluation of novel tetranuclear cyclopalladated complex bearing thiosemicarbazone scaffold ligand: Interactions with double‐strand DNA, coronavirus, and molecular modeling studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zohreh Mehri Lighvan
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
- Leibniz‐Institut für Polymerforschung Dresdene. V Dresden Germany
| | - Ali Akbari
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute Urmia University of Medical Sciences Urmia Iran
| | | | - Azar Ramezanpour
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | | | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences Bratislava Slovakia
| | - Esmaiel Jabbari
- Department of Chemical Engineering University of South Carolina Columbia South Carolina USA
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Macasoi I, Mioc A, Mioc M, Racoviceanu R, Soica I, Chevereșan A, Dehelean C, Dumitrașcu V. Targeting Mitochondria through the Use of Mitocans as Emerging Anticancer Agents. Curr Med Chem 2020; 27:5730-5757. [DOI: 10.2174/0929867326666190712150638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/19/2019] [Accepted: 06/11/2019] [Indexed: 01/10/2023]
Abstract
Mitochondria are key players with a multi-functional role in many vital cellular processes,
such as energy metabolism, redox regulation, calcium homeostasis, Reactive Oxygen Species
(ROS) as well as in cell signaling, survival and apoptosis. These functions are mainly regulated
through important enzyme signaling cascades, which if altered may influence the outcome of cell
viability and apoptosis. Therefore some of the key enzymes that are vital for these signaling pathways
are emerging as important targets for new anticancer agent development. Mitocans are compounds
aimed at targeting mitochondria in cancer cells by altering mitochondrial functions thus
causing cell growth inhibition or apoptosis. This review summarizes the till present known classes
of mitocans, their mechanism of action and potential therapeutic use in different forms of cancer.
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Affiliation(s)
- Ioana Macasoi
- Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Alexandra Mioc
- Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Marius Mioc
- Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Roxana Racoviceanu
- Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Irina Soica
- Earlscliffe Sixth Form, Earlscliffe, 29 Shorncliffe Road, Folkestone, CT20 2NB, United Kingdom
| | - Adelina Chevereșan
- Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Cristina Dehelean
- Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
| | - Victor Dumitrașcu
- Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, 2 Eftimie Murgu, Timisoara, Romania
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Targeting mitochondria in melanoma: Interplay between MAPK signaling pathway and mitochondrial dynamics. Biochem Pharmacol 2020; 178:114104. [PMID: 32562785 DOI: 10.1016/j.bcp.2020.114104] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/09/2020] [Accepted: 06/15/2020] [Indexed: 12/18/2022]
Abstract
Melanoma is a malignant proliferative disease originated in melanocytes, characterized by high metastatic activity and by the activation of oncogenes, such as B-RAF (40-60% of cases). Recent studies have shown that vemurafenib (a MAPK inhibitor) promoted disturbance of mitochondrial bioenergetics, although underlying mechanisms are not fully comprehended. Here we showed that MAPK inhibition by vemurafenib in B-RAFV600E-mutated human melanoma culminated in the inhibition of DRP1 phosphorylation, associated to a large mitochondrial network remodeling to the hyperfused phenotype, and increased oxidative phosphorylation capacity. Such alterations may be associated to melanoma resistance to vemurafenib, since the impairment of oxidative phosphorylation increased the vemurafenib cytotoxicity. These results point to the potential of mitochondrial dynamics as a targetable pathway in melanoma.
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Costa CA, Lopes RM, Ferraz LS, Esteves GN, Di Iorio JF, Souza AA, de Oliveira IM, Manarin F, Judice WA, Stefani HA, Rodrigues T. Cytotoxicity of 4-substituted quinoline derivatives: Anticancer and antileishmanial potential. Bioorg Med Chem 2020; 28:115511. [DOI: 10.1016/j.bmc.2020.115511] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/08/2020] [Accepted: 04/14/2020] [Indexed: 12/11/2022]
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Gao X, Gong G, Zhang Z, Du G, Cao Y, Zhao G. A novel cyclopalladated ferrocene derivative: Synthesis, single crystal structure and evaluation of in vitro antitumor activity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Medeiros HCD, Colturato-Kido C, Ferraz LS, Costa CA, Moraes VWR, Paredes-Gamero EJ, Tersariol ILS, Rodrigues T. AMPK activation induced by promethazine increases NOXA expression and Beclin-1 phosphorylation and drives autophagy-associated apoptosis in chronic myeloid leukemia. Chem Biol Interact 2019; 315:108888. [PMID: 31682805 DOI: 10.1016/j.cbi.2019.108888] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/15/2019] [Accepted: 10/28/2019] [Indexed: 01/12/2023]
Abstract
Relapse and drug resistance is still major challenges in the treatment of leukemia. Promethazine, an antihistaminic phenothiazine derivative, has been used to prevent chemotherapy-induced emesis, although there is no report about its antitumor potential. Thus, we evaluated the promethazine cytotoxicity against several leukemia cells and the underlying mechanisms were investigated. Promethazine exhibited potent and selective cytotoxicity against all leukemia cell types in vitro at clinically relevant concentrations. Philadelphia positive chronic myeloid leukemia (CML) K562 cells were the most sensitive cell line. The cytotoxicity of promethazine in these cells was triggered by the activation of AMPK and inhibition of PI3K/AKT/mTOR pathway. The subsequent downstream effects were NOXA increase, MCL-1 decrease, and Beclin-1 activation, resulting in autophagy-associated apoptosis. These data highlight targeting autophagy may represent an interesting strategy in CML therapy, and also the antitumor potential of promethazine by acting in AMPK and PI3K/AKT/mTOR signaling pathways. Since this drug is currently used with relative low side effects, its repurposing may represent a new therapeutic opportunity for leukemia treatment.
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Affiliation(s)
- Hyllana C D Medeiros
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Carina Colturato-Kido
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Letícia S Ferraz
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - Claudia A Costa
- Interdisciplinary Center of Biochemistry Investigation (CIIB), University of Mogi das Cruzes (UMC), Mogi das Cruzes, SP, Brazil
| | - Vivian W R Moraes
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Edgar Julian Paredes-Gamero
- School of Pharmaceutical Sciences, Federal University of Mato Grosso do Sul (UFMS), Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Ivarne L S Tersariol
- Department of Biochemistry, São Paulo School of Medicine, Federal University of São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Tiago Rodrigues
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Brazil.
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12
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Castro DTH, Campos JF, Damião MJ, Torquato HFV, Paredes-Gamero EJ, Carollo CA, Rodrigues EG, de Picoli Souza K, dos Santos EL. Ethanolic Extract of Senna velutina Roots: Chemical Composition, In Vitro and In Vivo Antitumor Effects, and B16F10-Nex2 Melanoma Cell Death Mechanisms. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5719483. [PMID: 31285786 PMCID: PMC6594258 DOI: 10.1155/2019/5719483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023]
Abstract
Cutaneous melanoma is among the most aggressive types of cancer, and its rate of occurrence increases every year. Current pharmacological treatments for melanoma are not completely effective, requiring the identification of new drugs. As an alternative, plant-derived natural compounds are described as promising sources of new anticancer drugs. In this context, the objectives of this study were to identify the chemical composition of the ethanolic extract of Senna velutina roots (ESVR), to assess its in vitro and in vivo antitumor effects on melanoma cells, and to characterize its mechanisms of action. For these purposes, the chemical constituents were identified by liquid chromatography coupled to high-resolution mass spectrometry. The in vitro activity of the extract was assessed in the B16F10-Nex2 melanoma cell line using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and based on the apoptotic cell count; DNA fragmentation; necrostatin-1 inhibition; intracellular calcium, pan-caspase, and caspase-3 activation; reactive oxygen species (ROS) levels; and cell cycle arrest. The in vivo activity of the extract was assessed in models of tumor volume progression and pulmonary nodule formation in C57Bl/6 mice. The chemical composition results showed that ESVR contains flavonoid derivatives of the catechin, anthraquinone, and piceatannol groups. The extract reduced B16F10-Nex2 cell viability and promoted apoptotic cell death as well as caspase-3 activation, with increased intracellular calcium and ROS levels as well as cell cycle arrest at the sub-G0/G1 phase. In vivo, the tumor volume progression and pulmonary metastasis of ESVR-treated mice decreased over 50%. Combined, these results show that ESVR had in vitro and in vivo antitumor effects, predominantly by apoptosis, thus demonstrating its potential as a therapeutic agent in the treatment of melanoma and other types of cancer.
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Affiliation(s)
- David Tsuyoshi Hiramatsu Castro
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, CEP: 79804-970 MS, Brazil
| | - Jaqueline Ferreira Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, CEP: 79804-970 MS, Brazil
| | - Marcio José Damião
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, CEP: 79804-970 MS, Brazil
| | | | - Edgar Julian Paredes-Gamero
- Department of Biochemistry, Federal University of São Paulo, São Paulo, CEP: 04044-020, SP, Brazil
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, CEP: 79070-900, MS, Brazil
| | - Carlos Alexandre Carollo
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do Sul, Campo Grande, CEP: 79070-900 MS, Brazil
| | - Elaine Guadelupe Rodrigues
- Department of Microbiology, Immunology, and Parasitology, Paulista School of Medicine, Federal University of São Paulo (EPM-UNIFESP), São Paulo, CEP: 04023-062 SP, Brazil
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, CEP: 79804-970 MS, Brazil
| | - Edson Lucas dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, CEP: 79804-970 MS, Brazil
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13
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Baldivia DDS, Leite DF, Castro DTHD, Campos JF, Santos UPD, Paredes-Gamero EJ, Carollo CA, Silva DB, de Picoli Souza K, Dos Santos EL. Evaluation of In Vitro Antioxidant and Anticancer Properties of the Aqueous Extract from the Stem Bark of Stryphnodendron adstringens. Int J Mol Sci 2018; 19:ijms19082432. [PMID: 30126115 PMCID: PMC6121951 DOI: 10.3390/ijms19082432] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 12/13/2022] Open
Abstract
Stryphnodendron adstringens (Mart.) Coville (Fabaceae) is a tree species native to the Brazilian Cerrado commonly known as barbatimão. In traditional medicine, decoctions or infusions of the stem bark of this plant are used in the treatment of several diseases. The objective of this study was to analyze the chemical composition of Stryphnodendron adstringens aqueous extracts (SAAE) prepared from the stem bark to assess their antioxidant activity and anticancer effects as well as characterize cell death mechanisms against murine B16F10Nex-2 melanoma cells. From the SAAE, gallic acid, gallocatechin, epigallocatechin, dimeric and trimeric proanthocyanidins mainly composed of prodelphinidin units and the isomeric chromones C-hexosyl- and O-pentosyl-5,7-dihydroxychromone were identified. The SAAE showed antioxidant activity through direct free-radical scavenging as well as through oxidative hemolysis and lipid peroxidation inhibition in human erythrocytes. Furthermore, SAAE promoted apoptosis-induced cell death in melanoma cells by increasing intracellular reactive oxygen species (ROS) levels, inducing mitochondrial membrane potential dysfunction and activating caspase-3. Together, these data show the antioxidant and anticancer effects of Stryphnodendron adstringens. These results open new perspectives for studies against other tumor cell lines and in vivo models as well as for the identification and isolation of the chemical constituents responsible for these effects.
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Affiliation(s)
- Débora da Silva Baldivia
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | - Daniel Ferreira Leite
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | - David Tsuyoshi Hiramatsu de Castro
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | - Jaqueline Ferreira Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | - Uilson Pereira Dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | | | - Carlos Alexandre Carollo
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do Sul, University City, s/n, 79070-900 Campo Grande, MS, Brazil.
| | - Denise Brentan Silva
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do Sul, University City, s/n, 79070-900 Campo Grande, MS, Brazil.
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
| | - Edson Lucas Dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Rodovia Dourados Itahum, Km 12, CEP: 79.804-970 Dourados, MS, Brazil.
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14
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Gong G, Cao Y, Wang F, Zhao G. Planar Chiral Ferrocene Cyclopalladated Derivatives Induce Caspase-Dependent Apoptosis and Antimetastasis in Cancer Cells. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00897] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Guidong Gong
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
| | - Yuan Cao
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
| | - Fei Wang
- Key Laboratory of Natural Medicine and Clinical Translation, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR Chian
| | - Gang Zhao
- College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
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15
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Ferraz LS, Watashi CM, Colturato-Kido C, Pelegrino MT, Paredes-Gamero EJ, Weller RB, Seabra AB, Rodrigues T. Antitumor Potential of S-Nitrosothiol-Containing Polymeric Nanoparticles against Melanoma. Mol Pharm 2018; 15:1160-1168. [DOI: 10.1021/acs.molpharmaceut.7b01001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Letícia S. Ferraz
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Carolina M. Watashi
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Carina Colturato-Kido
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Milena T. Pelegrino
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
| | - Edgar J. Paredes-Gamero
- Interdisciplinary Center for Biochemistry Investigation (CIIB), University of Mogi das Cruzes (UMC), 08780-911 Mogi das Cruzes, São Paulo, Brazil
| | - Richard B. Weller
- Medical Research Council Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, EH16 4TJ Edinburgh, U.K
| | - Amedea B. Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
- Nanomedicine Research Unit (NANOMED), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
| | - Tiago Rodrigues
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), 09210-580 Santo André, São Paulo, Brazil
- Nanomedicine Research Unit (NANOMED), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
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16
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Gong G, Cao Y, Qian H, Zhou Y, Zhao H, Li L, Wang F, Zhao G. Assessment of the antitumor activity of a cyclopalladated ferrocene compound assisted by a dual-targeting drug delivery system. Chem Commun (Camb) 2018; 54:8312-8315. [DOI: 10.1039/c8cc03308k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nano-micelle HACD@CP could target to CD44 and induced MDA-MB-468 cells apoptosis.
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Affiliation(s)
- Guidong Gong
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Yuan Cao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Hongyun Qian
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Yangyang Zhou
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Haihang Zhao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Ling Li
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
| | - Fei Wang
- Key Laboratory of Natural Medicine and Clinical Translation
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Gang Zhao
- College of Chemical Engineering
- Sichuan University
- Chengdu
- P. R. China
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17
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Mitra I, Mukherjee S, Reddy B. VP, Misini B, Das P, Dasgupta S, Linert W, Moi SC. Synthesis, biological evaluation, substitution behaviour and DFT study of Pd(ii) complexes incorporating benzimidazole derivative. NEW J CHEM 2018. [DOI: 10.1039/c7nj05173e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd(ii) complexes with good DNA/BSA binding ability exhibit cytotoxicity comparable to cisplatin on different cancer cells along with reduced toxicity towards normal cells.
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Affiliation(s)
- Ishani Mitra
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209
- India
| | - Subhajit Mukherjee
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209
- India
| | | | - Bashkim Misini
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- Vienna
- Austria
| | - Payel Das
- Department of Bio-Technology
- National Institute of Technology
- Durgapur-713209
- India
| | - Subrata Dasgupta
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209
- India
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- Vienna
- Austria
| | - Sankar Ch. Moi
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209
- India
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18
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Bonamigo T, Campos JF, Oliveira AS, Torquato HFV, Balestieri JBP, Cardoso CAL, Paredes-Gamero EJ, de Picoli Souza K, dos Santos EL. Antioxidant and cytotoxic activity of propolis of Plebeia droryana and Apis mellifera (Hymenoptera, Apidae) from the Brazilian Cerrado biome. PLoS One 2017; 12:e0183983. [PMID: 28898258 PMCID: PMC5595300 DOI: 10.1371/journal.pone.0183983] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 08/15/2017] [Indexed: 12/12/2022] Open
Abstract
Propolis is a complex bioactive mixture produced by bees, known to have different biological activities, especially in countries where there is a rich biodiversity of plant species. The objective of this study was to determine the chemical composition and evaluate the antioxidant and cytotoxic properties of Brazilian propolis from the species Plebeia droryana and Apis mellifera found in Mato Grosso do Sul, Brazil. In the ethanolic extracts of P. droryana propolis (ExEP-P) and A. mellifera (ExEP-A) acids, phenolic compounds, terpenes and tocopherol were identified as major compounds. Both extracts presented antioxidant activity against the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical, the maximum activities being 500 μg/mL (ExEP-P) and 300 μg/mL (ExEP-A). However, only ExEP-A was able to inhibit lipid peroxidation induced by the oxidizing agent 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH), which inhibited oxidative hemolysis and reduced the levels of malondialdehyde (MDA) in human erythrocytes for 4 h of incubation. The extracts also reduced the cell viability of the K562 erythroleukemia tumour line, with a predominance of necrotic death. Thus, it is concluded that the propolis produced by P. droryana and A. mellifera contain important compounds capable of minimizing the action of oxidizing substances in the organism and reducing the viability of erythroleukemia cells.
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Affiliation(s)
- Thaliny Bonamigo
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Jaqueline Ferreira Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Alex Santos Oliveira
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Heron Fernandes Vieira Torquato
- Faculty of Pharmacy, Braz Cubas University, Francisco Rodrigues Filho Avenue, Mogi das Cruzes, SP, Brazil
- Department of Biochemistry, Federal University of São Paulo, R. Três de Maio 100, São Paulo, SP, Brazil
| | - José Benedito Perrella Balestieri
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
| | | | - Edgar Julian Paredes-Gamero
- Course of Chemistry, State University of Mato Grosso do Sul, Dourados, MS, Brazil
- Center for Interdisciplinary Research Biochemistry, University of Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, Mogi das Cruzes, SP, Brazil
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Edson Lucas dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism (GEBBAM), Federal University of Grande Dourados, Dourados, MS, Brazil
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19
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Campos JF, Espindola PPDT, Torquato HFV, Vital WD, Justo GZ, Silva DB, Carollo CA, de Picoli Souza K, Paredes-Gamero EJ, Dos Santos EL. Leaf and Root Extracts from Campomanesia adamantium (Myrtaceae) Promote Apoptotic Death of Leukemic Cells via Activation of Intracellular Calcium and Caspase-3. Front Pharmacol 2017; 8:466. [PMID: 28855870 PMCID: PMC5558464 DOI: 10.3389/fphar.2017.00466] [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: 01/13/2017] [Accepted: 06/30/2017] [Indexed: 12/21/2022] Open
Abstract
Phytochemical studies are seeking new alternatives to prevent or treat cancer, including different types of leukemias. Campomanesia adamantium, commonly known as guavira or guabiroba, exhibits pharmacological properties including antioxidant, antimicrobial, and antiproliferative activities. Considering the anticancer potential of this plant species, the aim of this study was to evaluate the antileukemic activity and the chemical composition of aqueous extracts from the leaves (AECL) and roots (AECR) of C. adamantium and their possible mechanisms of action. The extracts were analyzed by LC-DAD-MS, and their constituents were identified based on the UV, MS, and MS/MS data. The AECL and AECR showed different chemical compositions, which were identified as main compounds glycosylated flavonols from AECL and ellagic acid and their derivatives from AECR. The cytotoxicity promoted by these extracts were evaluated using human peripheral blood mononuclear cells and Jurkat leukemic cell line. The cell death profile was evaluated using annexin-V-FITC and propidium iodide labeling. Changes in the mitochondrial membrane potential, the activity of caspases, and intracellular calcium levels were assessed. The cell cycle profile was evaluated using propidium iodide. Both extracts caused concentration-dependent cytotoxicity only in Jurkat cells via late apoptosis. This activity was associated with loss of the mitochondrial membrane potential, activation of caspases-9 and -3, changes in intracellular calcium levels, and cell cycle arrest in S-phase. Therefore, the antileukemic activity of the AECL and AECR is mediated by mitochondrial dysfunction and intracellular messengers, which activate the intrinsic apoptotic pathway. Hence, aqueous extracts of the leaves and roots of C. adamantium show therapeutic potential for use in the prevention and treatment of diseases associated the proliferation of tumor cell.
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Affiliation(s)
- Jaqueline F Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Priscilla P de Toledo Espindola
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Heron F V Torquato
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Faculty of Pharmacy, Braz Cubas UniversityMogi das Cruzes, Brazil
| | - Wagner D Vital
- Interdisciplinary Center of Biochemistry Investigation, University of Mogi das CruzesMogi das Cruzes, Brazil
| | - Giselle Z Justo
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Department of Pharmaceutical Sciences, Federal University of São PauloSão Paulo, Brazil
| | - Denise B Silva
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do SulMato Grosso do Sul, Brazil
| | - Carlos A Carollo
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do SulMato Grosso do Sul, Brazil
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São PauloSão Paulo, Brazil.,Interdisciplinary Center of Biochemistry Investigation, University of Mogi das CruzesMogi das Cruzes, Brazil
| | - Edson L Dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande DouradosDourados, Brazil
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20
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Antioxidant, Antimicrobial and Cytotoxic Properties as Well as the Phenolic Content of the Extract from Hancornia speciosa Gomes. PLoS One 2016; 11:e0167531. [PMID: 27907185 PMCID: PMC5132198 DOI: 10.1371/journal.pone.0167531] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/09/2016] [Indexed: 12/26/2022] Open
Abstract
Hancornia speciosa Gomes (Apocynaceae) is a fruit tree, popularly known as mangabeira, and it is widely distributed throughout Brazil. Several parts of the plant are used in folk medicine, and the leaf and bark extracts have anti-inflammatory, antihypertensive, antidiabetic, and antimicrobial properties. In this study, we investigated the chemical composition of the ethanolic extract of Hancornia speciosa leaves (EEHS) and its antioxidant, antimicrobial, and cytotoxic activities as well as the mechanisms involved in cell death. The chemical compounds were identified by liquid chromatography coupled to mass spectrometry (LC-MS/MS). The antioxidant activity of the EEHS was investigated using the method that involves the scavenging of 2,2-diphenyl-1-picrylhydrazyl free radicals as well as the inhibition of oxidative hemolysis and lipid peroxidation induced by 2,2'-azobis (2-amidinopropane) in human erythrocytes. The antimicrobial activity was determined by calculating the minimum inhibitory concentration, minimum bactericidal concentration, minimum fungicidal concentration, and zone of inhibition. Kasumi-1 leukemic cells were used to assess the cytotoxic activity and mechanisms involved in cell death promoted by the EEHS. The chemical compounds identified were quinic acid, chlorogenic acid, catechin, rutin, isoquercitrin, kaempferol-rutinoside, and catechin-pentoside. The EEHS demonstrated antioxidant activity via the sequestration of free radicals, inhibition of hemolysis, and inhibition of lipid peroxidation in human erythrocytes incubated with an oxidizing agent. The antimicrobial activity was observed against American Type Culture Collection (ATCC) and hospital strains of bacteria and fungi, filamentous fungi and dermatophytes. The cytotoxic activity of the EEHS was induced by apoptosis, reduction of the mitochondrial membrane potential, and activation of cathepsins. Together, these results indicate the presence of phenolic compounds and flavonoids in the EEHS and that their antioxidant, antimicrobial, and cytotoxic activities in acute myeloid leukemia cells are mediated by apoptosis.
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21
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The Chemical Profile of Senna velutina Leaves and Their Antioxidant and Cytotoxic Effects. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:8405957. [PMID: 27803764 PMCID: PMC5075628 DOI: 10.1155/2016/8405957] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 09/14/2016] [Indexed: 01/01/2023]
Abstract
Natural products can be a source of biomolecules with antioxidant activity which are able to prevent oxidative stress-induced diseases and show antitumor activity, making them important sources of new anticancer drug prototypes. In this context, this study aimed to analyze the chemical composition of an ethanol extract of Senna velutina leaves and to assess its antioxidant and cytotoxic activities in leukemic cells. The antioxidant properties were evaluated using a DPPH free radical scavenging assay and by examining the extract's inhibition of AAPH-induced lipid peroxidation in human erythrocytes. Its cytotoxicity and possible mechanisms of action were assessed in Jurkat and K562 leukemic cell lines. The ethanol extract contained flavonoids, such as epigallocatechin, epicatechin, kaempferol heteroside, rutin, and dimeric and trimeric proanthocyanidin derivatives. The extract exhibited antioxidant activity by scavenging free radicals and antihemolytic action, and it decreased malondialdehyde content in human erythrocytes. Furthermore, the extract also induced leukemic cell death by activating intracellular calcium and caspase-3, decreasing mitochondrial membrane potential, and arresting the cell cycle in S and G2 phases. Hence, S. velutina leaf extract contains antioxidant and antileukemic biomolecules with potential applications in diseases associated with oxidative stress and in the inhibition of tumor cell proliferation.
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22
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Albert J, Bosque R, D’Andrea L, Durán JA, Granell J, Font-Bardia M, Calvet T. Synthesis and crystal structure of the dinuclear cyclopalladated compounds of methyl ( E )-4-(benzylideneamino)benzoate with acetato and chlorido bridge ligands: Study of their splitting reactions with pyridine. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Kosović M, Jaćimović Ž, Bugarčić ŽD, Petrović BV. Kinetics and mechanism of the substitution reactions of some bifunctional palladium(II) complexes with different nitrogen-donor heterocycles. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-0008-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Gutiérrez D, Bernès S, Hernández G, Portillo O, Moreno GE, Sharma M, Sharma P, Gutiérrez R. New chiral α-ketoimine-Pd(II) complexes and their anticancer activity. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1084618] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Daniela Gutiérrez
- Lab. Síntesis de Complejos. Fac. Ciencias Químicas, Universidad Autónoma de Puebla, Puebla, Mexico
| | - Sylvain Bernès
- Instituto de Física Luis Rivera Terrazas, BUAP, Puebla, Mexico
| | - Guadalupe Hernández
- Lab. Síntesis de Complejos. Fac. Ciencias Químicas, Universidad Autónoma de Puebla, Puebla, Mexico
| | - Oscar Portillo
- Lab. Síntesis de Complejos. Fac. Ciencias Químicas, Universidad Autónoma de Puebla, Puebla, Mexico
| | - Gloria E. Moreno
- Lab. Síntesis de Complejos. Fac. Ciencias Químicas, Universidad Autónoma de Puebla, Puebla, Mexico
| | - Manju Sharma
- Ingeniería Bioquímica, Instituto Tecnológico Superior de Atlixco, Atlixco, Mexico
| | - Pankaj Sharma
- Instituto de Química-UNAM, Circuito exterior, Cd. Universitaria, Coyoacán, México, DF, Mexico
| | - René Gutiérrez
- Lab. Síntesis de Complejos. Fac. Ciencias Químicas, Universidad Autónoma de Puebla, Puebla, Mexico
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25
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Cytotoxicity of phenothiazine derivatives associated with mitochondrial dysfunction: A structure-activity investigation. Toxicology 2015; 330:44-54. [DOI: 10.1016/j.tox.2015.02.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/12/2015] [Accepted: 02/12/2015] [Indexed: 02/01/2023]
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26
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Pages BJ, Ang DL, Wright EP, Aldrich-Wright JR. Metal complex interactions with DNA. Dalton Trans 2015; 44:3505-26. [DOI: 10.1039/c4dt02700k] [Citation(s) in RCA: 241] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Increasing numbers of DNA structures are being revealed using a diverse range of transition metal complexes and biophysical spectroscopic techniques. Here we present a review of metal complex-DNA interactions in which several binding modes and DNA structural forms are explored.
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Affiliation(s)
- Benjamin J. Pages
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Dale L. Ang
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Elisé P. Wright
- School of Medicine
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
| | - Janice R. Aldrich-Wright
- Nanoscale Organisation and Dynamics Group
- School of Science and Health
- University of Western Sydney
- Locked Bag 1797 Penrith South DC
- Australia
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27
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Antioxidant and cytotoxic activity of hydroethanolic extract from Jacaranda decurrens leaves. PLoS One 2014; 9:e112748. [PMID: 25402205 PMCID: PMC4234508 DOI: 10.1371/journal.pone.0112748] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/14/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND PURPOSE Leaves of Jacaranda decurrens are used in traditional Brazilian medicine to treat metabolic diseases related to increased reactive oxygen species. The present study evaluated the antioxidant and cytotoxic potential of hydroethanolic extract from the leaves of Jacaranda decurrens subsp. symmetrifoliolata. EXPERIMENTAL APPROACH Phenolic compounds, flavonoids and saponins were evaluated in an ethanol:water (80:20, v/v) extract from the leaves of Jacaranda decurrens subsp. symmetrifoliolata (E-Jds). The antioxidant activity of E-Jds was investigated by assessing the following: 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity; protection against 2,2'-azobis (2-amidinopropane) dihydrochloride (AAPH)-induced hemolysis of erythrocytes; in vitro and in vivo malondialdehyde dosage; and the ability to activate antioxidant enzymes. K562 leukemia cells were used for the cytotoxic evaluation of E-Jds and for the assessment of the cell death profile through flow cytometry. KEY RESULTS Phenolic and flavonoid compounds were quantified as 14.38% and 2.15%, respectively, of E-Jds. These phenolic and flavonoid compounds proved to be able to scavenge DPPH free radicals with an IC50 of 9.3 ± 3.3 µg/mL, to protect up to 50% of erythrocytes against AAPH-induced hemolysis and to reduce in vitro and in vivo malondialdehyde levels up to 84% and 22%, respectively. E-Jds also increased glutathione peroxidase enzyme activity, with a concomitant decrease in superoxide dismutase and catalase activity, and exhibited dose-dependent cytotoxic activity on K562 erythroleukemia cells with cell death occurring via both late apoptosis and necrosis. CONCLUSIONS E-Jds exhibits in vitro and in vivo antioxidant potential, which may be the mechanism mediating the metabolic activities reported in folk medicine. Furthermore, the cytotoxic activity identified in this study contributes with the knowledge of antiproliferative activities that have been described in the literature for the genus Jacaranda.
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Pagani IS, Spinelli O, Mattarucchi E, Pirrone C, Pigni D, Amelotti E, Lilliu S, Boroni C, Intermesoli T, Giussani U, Caimi L, Bolda F, Baffelli R, Candi E, Pasquali F, Lo Curto F, Lanfranchi A, Porta F, Rambaldi A, Porta G. Genomic quantitative real-time PCR proves residual disease positivity in more than 30% samples with negative mRNA-based qRT-PCR in Chronic Myeloid Leukemia. Oncoscience 2014; 1:510-21. [PMID: 25594053 PMCID: PMC4278316 DOI: 10.18632/oncoscience.65] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 07/23/2014] [Indexed: 12/20/2022] Open
Abstract
Imatinib mesylate (IM) is the first line therapy against Chronic Myeloid Leukemia, effectively prolonging overall survival. Because discontinuation of treatment is associated with relapse, IM is required indefinitely to maintain operational cure. To assess minimal residual disease, cytogenetic analysis is insensitive in a high background of normal lymphocytes. The qRT-PCR provides highly sensitive detection of BCR-ABL1 transcripts, but mRNA levels are not directly related to the number of leukemic cells, and undetectable results are difficult to interpret. We developed a sensitive approach to detect the number of leukemic cells by a genomic DNA (gDNA) Q-PCR assay based on the break-point sequence, with a formula to calculate the number of Ph-positive cells. We monitored 8 CML patients treated with IM for more than 8 years. We tested each samples by patient specific gDNA Q-PCR in parallel by the conventional techniques. In all samples positive for chimeric transcripts we showed corresponding chimeric gDNA by Q-PCR, and in 32.8% (42/128) of samples with undetectable levels of mRNA we detected the persistence of leukemic cells. The gDNA Q-PCR assay could be a new diagnostic tool used in parallel to conventional techniques to support the clinician's decision to vary or to STOP IM therapy.
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Affiliation(s)
- Ilaria S Pagani
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy ; Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Orietta Spinelli
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Elia Mattarucchi
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Cristina Pirrone
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Diana Pigni
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Elisabetta Amelotti
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Silvia Lilliu
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Chiara Boroni
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Tamara Intermesoli
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Ursula Giussani
- Laboratory of Medical Genetics, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Luigi Caimi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Federica Bolda
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Renata Baffelli
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Eleonora Candi
- Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Francesco Pasquali
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Francesco Lo Curto
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Arnalda Lanfranchi
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Fulvio Porta
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Alessandro Rambaldi
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Giovanni Porta
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
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Kapdi AR, Fairlamb IJS. Anti-cancer palladium complexes: a focus on PdX2L2, palladacycles and related complexes. Chem Soc Rev 2014; 43:4751-77. [PMID: 24723061 DOI: 10.1039/c4cs00063c] [Citation(s) in RCA: 250] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Much success has been achieved with platinum-based chemotherapeutic agents, i.e. through interactions with DNA. The long-term application of Pt complexes is thwarted by issues, leading scientists to examine other metals such as palladium which could exhibit complementary modes of action (given emphasis wherever known). Over the last 10 years several research groups have focused on the application of an eclectic array of palladium complexes (of the type PdX2L2, palladacycles and related structures) as potential anti-cancer agents. This review therefore provides readers with an up to date account of the advances that have taken place over the past several decades.
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Affiliation(s)
- Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, 302, Advance Centre, Nathalal Parekh Road, Matunga, Mumbai-400019, India.
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