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Smith B, Li Y, Fields T, Tucker M, Staskiewicz A, Wong E, Ma H, Mao H, Wang X. Tumor integrin targeted theranostic iron oxide nanoparticles for delivery of caffeic acid phenethyl ester: preparation, characterization, and anti-myeloma activities. Front Pharmacol 2024; 15:1325196. [PMID: 38510655 PMCID: PMC10952826 DOI: 10.3389/fphar.2024.1325196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/19/2024] [Indexed: 03/22/2024] Open
Abstract
Multiple myeloma (MM) is characterized by the accumulation of malignant plasma cells preferentially in the bone marrow. Currently, emerging chemotherapy drugs with improved biosafety profiles, such as immunomodulatory agents and protease inhibitors, have been used in clinics to treat MM in both initial therapy or maintenance therapy post autologous hematopoietic stem cell transplantation (ASCT). We previously discovered that caffeic acid phenethyl ester (CAPE), a water-insoluble natural compound, inhibited the growth of MM cells by inducing oxidative stress. As part of our continuous effort to pursue a less toxic yet more effective therapeutic approach for MM, the objective of this study is to investigate the potential of CAPE for in vivo applications by using magnetic resonance imaging (MRI)-capable superparamagnetic iron oxide nanoparticles (IONP) as carriers. Cyclo (Arg-Gly-Asp-D-Phe-Cys) (RGD) is conjugated to IONP (RGD-IONP/CAPE) to target the overexpressed αvβ3 integrin on MM cells for receptor-mediated internalization and intracellular delivery of CAPE. A stable loading of CAPE on IONP can be achieved with a loading efficiency of 48.7% ± 3.3% (wt%). The drug-release studies indicate RGD-IONP/CAPE is stable at physiological (pH 7.4) and basic pH (pH 9.5) and subject to release of CAPE at acidic pH (pH 5.5) mimicking the tumor and lysosomal condition. RGD-IONP/CAPE causes cytotoxicity specific to human MM RPMI8226, U266, and NCI-H929 cells, but not to normal peripheral blood mononuclear cells (PBMCs), with IC50s of 7.97 ± 1.39, 16.75 ± 1.62, and 24.38 ± 1.71 μM after 72-h treatment, respectively. Apoptosis assays indicate RGD-IONP/CAPE induces apoptosis of RPMI8226 cells through a caspase-9 mediated intrinsic pathway, the same as applying CAPE alone. The apoptogenic effect of RGD-IONP/CAPE was also confirmed on the RPMI8226 cells co-cultured with human bone marrow stromal cells HS-5 in a Transwell model to mimic the MM microenvironment in the bone marrow. In conclusion, we demonstrate that water-insoluble CAPE can be loaded to RGD-IONP to greatly improve the biocompatibility and significantly inhibit the growth of MM cells in vitro through the induction of apoptosis. This study paves the way for investigating the MRI-trackable delivery of CAPE for MM treatment in animal models in the future.
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Affiliation(s)
- Barkley Smith
- Department of Pharmaceutical Sciences, School of Pharmacy, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Yuancheng Li
- 5M Biomed, Limited Liability Company, Atlanta, GA, United States
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, United States
| | - Travis Fields
- Division of Research, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Michael Tucker
- Department of Pharmaceutical Sciences, School of Pharmacy, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Anna Staskiewicz
- Division of Research, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Erica Wong
- Department of Pharmaceutical Sciences, School of Pharmacy, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Handong Ma
- Division of Research, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, United States
| | - Xinyu Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA, United States
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Goel H, Kumar R, Tanwar P, Upadhyay TK, Khan F, Pandey P, Kang S, Moon M, Choi J, Choi M, Park MN, Kim B, Saeed M. Unraveling the therapeutic potential of natural products in the prevention and treatment of leukemia. Biomed Pharmacother 2023; 160:114351. [PMID: 36736284 DOI: 10.1016/j.biopha.2023.114351] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
Leukemia is a heterogeneous group of hematological malignancies distinguished by differentiation blockage and uncontrolled proliferation of myeloid or lymphoid progenitor cells in the bone marrow (BM) and peripheral blood (PB). There are various types of leukemia in which intensive chemotherapy regimens or hematopoietic stem cell transplantation (HSCT) are now the most common treatments associated with severe side effects and multi-drug resistance in leukemia cells. Therefore, it is crucial to develop novel therapeutic approaches with adequate therapeutic efficacy and selectively eliminate leukemic cells to improve the consequences of leukemia. Medicinal plants have been utilized for ages to treat multiple disorders due to their diverse bioactive compounds. Plant-derived products have been used as therapeutic medication to prevent and treat many types of cancer. Over the last two decades, 50 % of all anticancer drugs approved worldwide are from natural products and their derivatives. Therefore this study aims to review natural products such as polyphenols, alkaloids, terpenoids, nitrogen-containing, and organosulfur compounds as antileukemic agents. Current investigations have identified natural products efficiently destroy leukemia cells through diverse mechanisms of action by inhibiting proliferation, reactive oxygen species production, inducing cell cycle arrest, and apoptosis in both in vitro, in vivo, and clinical studies. Current investigations have identified natural products as suitable promising chemotherapeutic and chemopreventive agents. It played an essential role in drug development and emerged as a possible source of biologically active metabolites for therapeutic interventions, especially in leukemia. DATA AVAILABILITY: Data will be made available on request.
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Affiliation(s)
- Harsh Goel
- Department of Laboratory Oncology, All India Institute of Medical Sciences, New Delhi 11023, India.
| | - Rahul Kumar
- Department of Laboratory Oncology, All India Institute of Medical Sciences, New Delhi 11023, India.
| | - Pranay Tanwar
- Department of Laboratory Oncology, All India Institute of Medical Sciences, New Delhi 11023, India.
| | - Tarun Kumar Upadhyay
- Department of Biotechnology, Parul Institute of Applied Sciences and Centre of Research for Development, Parul University, Vadodara 391760, India,.
| | - Fahad Khan
- Department of Biotechnology, Noida Institute of Engineering & Technology, Greater Noida 201306, India.
| | - Pratibha Pandey
- Department of Biotechnology, Noida Institute of Engineering & Technology, Greater Noida 201306, India.
| | - Sojin Kang
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Myunghan Moon
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Jinwon Choi
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Min Choi
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 05253, Republic of Korea.
| | - Mohd Saeed
- Department of Biology, College of Sciences, University of Hail, P.O. Box 2440, Hail 81411 Saudi Arabia.
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Lv L, Cui H, Ma Z, Liu X, Yang L. Recent progresses in the pharmacological activities of caffeic acid phenethyl ester. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:1327-1339. [PMID: 33492405 DOI: 10.1007/s00210-021-02054-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/14/2021] [Indexed: 12/16/2022]
Abstract
The past decades have seen a growing interest in natural products. Caffeic acid phenethyl ester (CAPE), a flavonoid isolated from honeybee propolis, has shown multiple pharmacological potentials, including anti-cancer, anti-inflammatory, antioxidant, antibacterial, antifungal, and protective effects on nervous systems and multiple organs, since it was found as a potent nuclear factor κB (NF-κB) inhibitor. This review summarizes the advances in these beneficial effects of CAPE, as well as the underlying mechanisms, and proposes that CAPE offers an opportunity for developing therapeutics in multiple diseases. However, clinical trials on CAPE are necessary and encouraged to obtain certain clinically relevant conclusions.
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Affiliation(s)
- Lili Lv
- Jilin University, Changchun, 130021, China
| | | | - Zhiming Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Xin Liu
- Eye Center, The Second Hospital of Jilin University, Changchun, 130041, China.
| | - Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, 130041, China.
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Murugesan A, Lassalle-Claux G, Hogan L, Vaillancourt E, Selka A, Luiker K, Kim MJ, Touaibia M, Reiman T. Antimyeloma Potential of Caffeic Acid Phenethyl Ester and Its Analogues through Sp1 Mediated Downregulation of IKZF1-IRF4-MYC Axis. JOURNAL OF NATURAL PRODUCTS 2020; 83:3526-3535. [PMID: 33210536 DOI: 10.1021/acs.jnatprod.0c00350] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Caffeic acid phenethyl ester (CAPE, 2), a natural compound from propolis, is a well-documented antitumor agent with nuclear factor kappa B (NF-κB) inhibitory activity. Key transcription factors regulated by NF-κB, namely, interferon regulatory factor-4 (IRF4) and octameric binding protein-2 (OCT2), are implicated in the tumorigenesis of multiple myeloma (MM), an incurable bone marrow cancer. Adverse effects and resistance to current chemotherapeutics pose a great challenge for MM treatment. Hence, the structure-activity relationships of CAPE (2) and 21 of its analogues were evaluated for their antimyeloma potential. Preclinical evaluation revealed that CAPE (2) and the 3-phenylpropyl (4), 2,5-dihydroxycinnamic acid 3-phenylpropyl ester (17), and 3,4-dihydroxycinnamic ether (22) analogues inhibited human myeloma cell growth. Analogue 4 surpassed CAPE (2) and lenalidomide in showing strong apoptotic effects with a remarkable decrease in IRF4 levels. The analogue 17 exhibited the most potent anti-MM activity. The downregulation of specificity protein 1 (Sp1) and the IKZF1-IRF4-MYC axis by CAPE (2) analogues 4 and 17 revealed their novel mechanism of action. The analogues showed no adverse cytotoxic effects on normal human cells and exhibited appropriate in silico pharmacokinetic properties and drug-likeness. These findings suggest the promising application of CAPE (2) analogues to target Ikaros (IKZF1)/IRF4 addiction, the so-called Achilles heel of myeloma, for better treatment outcomes.
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Affiliation(s)
- Alli Murugesan
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
- Faculty of Medicine, Halifax, NS, Dalhousie Medicine NB, Saint John, New Brunswick E2L 4L2, Canada
| | - Grégoire Lassalle-Claux
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Lauren Hogan
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Elise Vaillancourt
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Ayyoub Selka
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Katie Luiker
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Min Ji Kim
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Mohamed Touaibia
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Tony Reiman
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
- Faculty of Medicine, Halifax, NS, Dalhousie Medicine NB, Saint John, New Brunswick E2L 4L2, Canada
- Department of Oncology, Saint John Regional Hospital, Saint John, New Brunswick E2L 4L2, Canada
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5
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Pibuel MA, Díaz M, Molinari Y, Poodts D, Silvestroff L, Lompardía SL, Franco P, Hajos SE. 4-Methylumbelliferone as a potent and selective antitumor drug on a glioblastoma model. Glycobiology 2020; 31:29-43. [PMID: 32472122 DOI: 10.1093/glycob/cwaa046] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma (GBM), the most frequent primary tumor of the central nervous system, has a median survival of 14.6 months. 4-Methylumbelliferone (4MU) is a coumarin derivative widely used as a hyaluronan synthesis inhibitor with proven antitumor activity and without toxic effects reported. We aim to evaluate the antitumor effect of 4MU alone or combined with temozolomide (TMZ) on a GBM cell line, its absence of toxicity on brain cells and its selectivity for tumor cells. The antitumor effect of 4MU alone or combined with TMZ was evaluated on GL26 cells by assessing the metabolic activity through the XTT assay, cell proliferation by BrdU incorporation assay, migration by the wound healing assay, cell death by fluorescein diacetate/propidium iodide (FDA/PI) staining, apoptosis by membrane asymmetry and DNA fragmentation and metalloproteinase activity by zymography. The levels of hyaluronan and its capacity to counteract the effects of 4MU and the expression of RHAMM and CD44 were also determined. The toxicity and selectivity of 4MU were determined by XTT assay and PI staining on normal brain primary cell culture (NBPC-GFP) and GL26/NBPC-GFP cocultures. The GL26 cells expressed RHAMM but not CD44 while synthetized hyaluronan. 4MU decreased hyaluronan synthesis, diminished proliferation and induced apoptosis while reducing cell migration and the activity of metalloproteinases, which was restored by addition of hyaluronic acid. Furthermore, 4MU sensitized GL26 cells to the TMZ effect and showed selective toxicity on tumor cells without exhibiting neurotoxic effects. We demonstrated for the first time the cytotoxic effect of 4MU on GBM cells, highlighting its potential usefulness to improve GBM treatment.
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Affiliation(s)
- Matías A Pibuel
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Mariángeles Díaz
- Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Yamila Molinari
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica, Facultad de Farmacia y Bioquímica, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Daniela Poodts
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Lucas Silvestroff
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica, Facultad de Farmacia y Bioquímica, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Silvina L Lompardía
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Paula Franco
- Departamento de Química Biológica, Cátedra de Química Biológica Patológica, Facultad de Farmacia y Bioquímica, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
| | - Silvia E Hajos
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Junin 956, C1113 CABA, Argentina
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6
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Lompardía S, Díaz M, Pibuel M, Papademetrio D, Poodts D, Mihalez C, Álvarez É, Hajos S. Hyaluronan abrogates imatinib-induced senescence in chronic myeloid leukemia cell lines. Sci Rep 2019; 9:10930. [PMID: 31358779 PMCID: PMC6662747 DOI: 10.1038/s41598-019-47248-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/12/2019] [Indexed: 12/12/2022] Open
Abstract
Hyaluronan (HA) is the main glycosaminoglycan of the extracellular matrix. CD44 is the most important HA receptor, and both have been associated with poor prognosis in cancer. Chronic myeloid leukemia (CML) is characterized by the presence of a constitutively activated tyrosine kinase (Breakpoint Cluster Region - Abelson murine leukemia viral oncogene homolog1, BCR-ABL). It is mainly treated with BCR-ABL inhibitors, such as imatinib. However, the selection of resistant cells leads to treatment failure. The aim of this work was to determine the capacity of HA (high molecular weight) to counteract the effect of imatinib in human CML cell lines (K562 and Kv562). We demonstrated that imatinib decreased HA levels and the surface expression of CD44 in both cell lines. Furthermore, HA abrogated the anti-proliferative and pro-senescent effect of Imatinib without modifying the imatinib-induced apoptosis. Moreover, the inhibition of HA synthesis with 4-methylumbelliferone enhanced the anti-proliferative effect of imatinib. These results suggest that Imatinib-induced senescence would depend on the reduction in HA levels, describing, for the first time, the role of HA in the development of resistance to imatinib. These findings show that low levels of HA are crucial for an effective therapy with imatinib in CML.
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Affiliation(s)
- Silvina Lompardía
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina.
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina.
| | - Mariángeles Díaz
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Matías Pibuel
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Daniela Papademetrio
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Daniela Poodts
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
| | - Cintia Mihalez
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Élida Álvarez
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
| | - Silvia Hajos
- Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Inmunología, Buenos Aires, Argentina
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral (IDEHU), Buenos Aires, Argentina
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Jabir NR, Islam MT, Tabrez S, Shakil S, Zaidi SK, Khan FR, Araújo LDS, de Meneses AAPM, Santos JVDO, Melo-Cavalcante AADC. An insight towards anticancer potential of major coffee constituents. Biofactors 2018. [DOI: 10.1002/biof.1437] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nasimudeen R. Jabir
- King Fahd Medical Research Center; King Abdulaziz University; Jeddah Saudi Arabia
| | - Muhammad Torequl Islam
- Department for Management of Science and Technology Development; Ton Duc Thang University; Ho Chi Minh City Vietnam
- Faculty of Pharmacy; Ton Duc Thang University; Ho Chi Minh City Vietnam
| | - Shams Tabrez
- King Fahd Medical Research Center; King Abdulaziz University; Jeddah Saudi Arabia
| | - Shazi Shakil
- Center of Innovation in Personalized Medicine; King Abdulaziz University; Jeddah Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences; King Abdulaziz University; Jeddah Saudi Arabia
- Center of Excellence in Genomic Medicine Research; King Abdulaziz University; Jeddah Saudi Arabia
| | - Syed Kashif Zaidi
- Center of Excellence in Genomic Medicine Research; King Abdulaziz University; Jeddah Saudi Arabia
| | - Fayaz Rahman Khan
- Department of Physical Therapy, Faculty of Applied Medical Sciences; King Abdulaziz University; Jeddah Saudi Arabia
| | - Lidiane da Silva Araújo
- Post-Graduate Program in Pharmaceutical Science; Federal University of Piauí; Teresina Brazil
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8
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Yucel B, Sonmez M. Repression of oxidative phosphorylation sensitizes leukemia cell lines to cytarabine. Hematology 2017; 23:330-336. [DOI: 10.1080/10245332.2017.1402454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Burcu Yucel
- Medical Faculty, Department of Medical Biology, Karadeniz Technical University, Trabzon, Turkey
| | - Mehmet Sonmez
- Medical Faculty, Department of Internal Medicine, Division of Hematology, Karadeniz Technical University, Trabzon, Turkey
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Papademetrio DL, Lompardía SL, Simunovich T, Costantino S, Mihalez CY, Cavaliere V, Álvarez É. Inhibition of Survival Pathways MAPK and NF-kB Triggers Apoptosis in Pancreatic Ductal Adenocarcinoma Cells via Suppression of Autophagy. Target Oncol 2017; 11:183-95. [PMID: 26373299 DOI: 10.1007/s11523-015-0388-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease with a survival rate of 4-6 months from diagnosis. PDAC is the fourth leading cause of cancer-related death in the Western world, with a mortality rate of 10 cases per 100,000 population. Chemotherapy constitutes only a palliative strategy, with limited effects on life expectancy. AIMS To investigate the biological response of PDAC to mitogen-activated protein kinase (MAPK) and NF-kappaB (NF-kB) inhibitors and the role of autophagy in the modulation of these signaling pathways in order to address the challenge of developing improved medical protocols for patients with PDAC. METHODS Two ATCC cell lines, MIAPaCa-2 and PANC-1, were used as PDAC models. Cells were exposed to inhibitors of MAPK or NF-kB survival pathways alone or after autophagy inhibition. Several aspects were analyzed, as follows: cell proliferation, by [(3)H]TdR incorporation; cell death, by TUNEL assay, regulation of autophagy by LC3-II expression level and modulation of pro-and anti-apoptotic proteins by Western blot. RESULTS We demonstrated that the inhibition of the MAPK and NF-kB survival pathways with U0126 and caffeic acid phenethyl ester (CAPE), respectively, produced strong inhibition of pancreatic tumor cell growth without inducing apoptotic death. Interestingly, U0126 and CAPE induced apoptosis after autophagy inhibition in a caspase-dependent manner in MIA PaCa-2 cells and in a caspase-independent manner in PANC-1 cells. CONCLUSIONS Here we present evidence that allows us to consider a combined therapy regimen comprising an autophagy inhibitor and a MAPK or NF-kB pathway inhibitor as a possible treatment strategy for pancreatic cancer.
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Affiliation(s)
- Daniela Laura Papademetrio
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
- IDEHU, CONICET, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
| | - Silvina Laura Lompardía
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
- IDEHU, CONICET, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Tania Simunovich
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Susana Costantino
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
- IDEHU, CONICET, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Cintia Yamila Mihalez
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
- IDEHU, CONICET, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Victoria Cavaliere
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Élida Álvarez
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° piso, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
- IDEHU, CONICET, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
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Xie J, Yang F, Zhang M, Lam C, Qiao Y, Xiao J, Zhang D, Ge Y, Fu L, Xie D. Antiproliferative activity and SARs of caffeic acid esters with mono-substituted phenylethanols moiety. Bioorg Med Chem Lett 2016; 27:131-134. [PMID: 27979593 DOI: 10.1016/j.bmcl.2016.12.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/15/2016] [Accepted: 12/02/2016] [Indexed: 12/19/2022]
Abstract
A series of CAPE derivatives with mono-substituted phenylethanols moiety were synthesized and evaluated by MTT assay on growth of 4 human cancer cell lines (Hela, DU-145, MCF-7 and ECA-109). The substituent effects on the antiproliferative activity were systematically investigated for the first time. It was found that electron-donating and hydrophobic substituents at 2'-position of phenylethanol moiety could significantly enhance CAPE's antiproliferative activity. 2'-Propoxyl derivative, as a novel caffeic acid ester, exhibited exquisite potency (IC50=0.4±0.02 & 0.6±0.03μM against Hela and DU-145 respectively).
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Affiliation(s)
- Jin Xie
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Fengzhi Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Man Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Celine Lam
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Yixue Qiao
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Jia Xiao
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Dongdong Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Yuxuan Ge
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
| | - Lei Fu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China.
| | - Dongsheng Xie
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China.
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11
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Lompardía SL, Díaz M, Papademetrio DL, Pibuel M, Álvarez É, Hajos SE. 4-methylumbelliferone and imatinib combination enhances senescence induction in chronic myeloid leukemia cell lines. Invest New Drugs 2016; 35:1-10. [DOI: 10.1007/s10637-016-0397-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 09/29/2016] [Indexed: 01/07/2023]
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12
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Lompardía SL, Díaz M, Papademetrio DL, Mascaró M, Pibuel M, Álvarez E, Hajos SE. Hyaluronan oligomers sensitize chronic myeloid leukemia cell lines to the effect of Imatinib. Glycobiology 2015; 26:343-52. [DOI: 10.1093/glycob/cwv107] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 11/11/2015] [Indexed: 02/06/2023] Open
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13
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Chao TH, Chang MY, Su SJ, Su SH. Inducible nitric oxide synthase mediates MG132 lethality in leukemic cells through mitochondrial depolarization. Free Radic Biol Med 2014; 74:175-87. [PMID: 24909615 DOI: 10.1016/j.freeradbiomed.2014.05.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/28/2014] [Accepted: 05/29/2014] [Indexed: 11/29/2022]
Abstract
Proteasomes are highly expressed in rapidly growing neoplastic cells and essential for controlling the cell cycle process and mitochondrial homeostasis. Pharmacological inhibition of the proteasome shows a significant anticancer effect on hematopoietic malignancies that is usually associated with the generation of reactive oxygen species. In this study, we comprehensively investigated the role of endogenous oxidants in various cellular events of K562 leukemic cells in response to treatment with MG132, a proteasome inhibitor. MG132 at 1.4 µM potently triggered G2/M arrest, mitochondrial depolarization, and apoptosis. By such treatment, the protein level of inducible nitric oxide synthase (iNOS) was doubled and cellular oxidants, including nitric oxide, superoxide, and their derivatives, were increasingly produced. In MG132-treated cells, the increase in iNOS-derived oxidants was responsible for mitochondrial depolarization and caspase-dependent apoptosis, but was insignificant in G2/M arrest. The amount of iNOS was negatively correlated with that of manganese superoxide dismutase (MnSOD). Whereas iNOS activity was inhibited by aminoguanidine, cellular MnSOD levels as well as mitochondrial membrane potentials were upregulated, and consequentially G2/M arrest and apoptosis were thoroughly reversed. It is suggested that cells rich in functional mitochondria possess improved proteasome activity, which antagonizes the cytotoxic and cytostatic effects of MG132. In contrast to iNOS, endothelial NOS-driven cGMP-dependent signaling promoted mitochondrial function and survival of MG132-stressed cells. In conclusion, the functional interplay of proteasomes and mitochondria is crucial for leukemic cell growth, wherein iNOS plays a key role.
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Affiliation(s)
- Tung Hui Chao
- Institute of Medical Sciences, College of Medicine, Tzu-Chi University, Hualien 97004, Taiwan
| | - Meng-Ya Chang
- Institute of Medical Sciences, College of Medicine, Tzu-Chi University, Hualien 97004, Taiwan; Department of Medical Research, Buddhist Tzu-Chi General Hospital, Hualien, Taiwan
| | - Shu-Jem Su
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, FooYin University, Kaohsiung, Taiwan
| | - Shu-Hui Su
- Institute of Medical Sciences, College of Medicine, Tzu-Chi University, Hualien 97004, Taiwan; Department of Molecular Biology and Human Genetics, College of Life Sciences, Tzu-Chi University, Hualien 97004, Taiwan; Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu-Chi University, Hualien 97004, Taiwan.
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14
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Forbes-Hernández TY, Giampieri F, Gasparrini M, Mazzoni L, Quiles JL, Alvarez-Suarez JM, Battino M. The effects of bioactive compounds from plant foods on mitochondrial function: a focus on apoptotic mechanisms. Food Chem Toxicol 2014; 68:154-82. [PMID: 24680691 DOI: 10.1016/j.fct.2014.03.017] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/09/2014] [Accepted: 03/14/2014] [Indexed: 02/06/2023]
Abstract
Mitochondria are essential organelles for cellular integrity and functionality maintenance and their imparement is implicated in the development of a wide range of diseases, including metabolic, cardiovascular, degenerative and hyperproliferative pathologies. The identification of different compounds able to interact with mitochondria for therapeutic purposes is currently becoming of primary importance. Indeed, it is well known that foods, particularly those of vegetable origin, present several constituents with beneficial effects on health. This review summarizes and updates the most recent findings concerning the mechanisms through which different dietary compounds from plant foods affect mitochondria functionality in healthy and pathological in vitro and in vivo models, paying particular attention to the pathways involved in mitochondrial biogenesis and apoptosis.
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Affiliation(s)
- Tamara Y Forbes-Hernández
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - Francesca Giampieri
- Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Italy.
| | - Massimiliano Gasparrini
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - Luca Mazzoni
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Spain
| | - José M Alvarez-Suarez
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy; Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Italy
| | - Maurizio Battino
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy.
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15
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Ortiz-Lazareno PC, Bravo-Cuellar A, Lerma-Díaz JM, Jave-Suárez LF, Aguilar-Lemarroy A, Domínguez-Rodríguez JR, González-Ramella O, De Célis R, Gómez-Lomelí P, Hernández-Flores G. Sensitization of U937 leukemia cells to doxorubicin by the MG132 proteasome inhibitor induces an increase in apoptosis by suppressing NF-kappa B and mitochondrial membrane potential loss. Cancer Cell Int 2014; 14:13. [PMID: 24495648 PMCID: PMC3927225 DOI: 10.1186/1475-2867-14-13] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Accepted: 01/21/2014] [Indexed: 12/18/2022] Open
Abstract
Background The resistance of cancerous cells to chemotherapy remains the main limitation for cancer treatment at present. Doxorubicin (DOX) is a potent antitumor drug that activates the ubiquitin-proteasome system, but unfortunately it also activates the Nuclear factor kappa B (NF-кB) pathway leading to the promotion of tumor cell survival. MG132 is a drug that inhibits I kappa B degradation by the proteasome-avoiding activation of NF-кB. In this work, we studied the sensitizing effect of the MG132 proteasome inhibitor on the antitumor activity of DOX. Methods U937 human leukemia cells were treated with MG132, DOX, or both drugs. We evaluated proliferation, viability, apoptosis, caspase-3, -8, and −9 activity and cleavage, cytochrome c release, mitochondrial membrane potential, the Bcl-2 and Bcl-XL antiapoptotic proteins, senescence, p65 phosphorylation, and pro- and antiapoptotic genes. Results The greatest apoptosis percentage in U937 cells was obtained with a combination of MG132 + DOX. Likewise, employing both drugs, we observed a decrease in tumor cell proliferation and important caspase-3 activation, as well as mitochondrial membrane potential loss. Therefore, MG132 decreases senescence, p65 phosphorylation, and the DOX-induced Bcl-2 antiapoptotic protein. The MG132 + DOX treatment induced upregulation of proapoptotic genes BAX, DIABLO, NOXA, DR4, and FAS. It also induced downregulation of the antiapoptotic genes BCL-XL and SURVIVIN. Conclusion MG132 sensitizes U937 leukemia cells to DOX-induced apoptosis, increasing its anti-leukemic effectiveness.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Georgina Hernández-Flores
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara, Jalisco, México.
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Lompardía SL, Papademetrio DL, Mascaró M, Álvarez EMDC, Hajos SE. Human leukemic cell lines synthesize hyaluronan to avoid senescence and resist chemotherapy. Glycobiology 2013; 23:1463-76. [PMID: 24013961 DOI: 10.1093/glycob/cwt074] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hyaluronan (HA) is one of the major components of the extracellular matrix. Several solid tumors produce high levels of HA, which promotes survival and multidrug resistance (MDR). HA oligomers (oHAs) can block HA effects. However, little is known about the role of HA in hematological malignancies. The aim of this work was to determine whether HA or its oligomers can modulate the proliferation of leukemia cells as well as their effect on MDR. Receptors and signaling pathways involved were also analyzed. For this purpose, the human leukemic cell lines K562 and Kv562, which are sensitive and resistant to Vincristine (VCR), respectively, were used. We demonstrated that HA induced cell proliferation in both cell lines. On K562 cells, this effect was mediated by cluster differentiation 44 (CD44) and activation of both phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) and mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) pathways, whereas on Kv562 cells, the effect was mediated by receptor for hyaluronan-mediated motility (RHAMM) and PI3K/Akt activation. The inhibition of HA synthesis by 4-methylumbelliferone (4MU) decreased cell line proliferation and sensitized Kv562 to the effect of VCR through P-glycoprotein (Pgp) inhibition, in both cases with senescence induction. Moreover, oHAs inhibited K562 proliferation mediated by CD44 as well as Akt and ERK down-regulation. Furthermore, oHAs sensitized Kv562 cells to VCR by Pgp inhibition inducing senescence. We postulate that the synthesis of HA would promote leukemia progression mediated by the triggering of the above-mentioned proliferative signals. These findings highlight the potential use of oHAs and 4MU as coadjuvant for drug-resistant leukemia.
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Affiliation(s)
- Silvina Laura Lompardía
- Department of Immunology, School of Pharmacy and Biochemistry, University of Buenos Aires (UBA), IDEHU-CONICET, Buenos Aires 1113, Argentina
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Cavaliere V, Papademetrio DL, Lombardo T, Costantino SN, Blanco GA, Alvarez EMC. Caffeic acid phenylethyl ester and MG132, two novel nonconventional chemotherapeutic agents, induce apoptosis of human leukemic cells by disrupting mitochondrial function. Target Oncol 2013; 9:25-42. [PMID: 23430344 DOI: 10.1007/s11523-013-0256-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 01/04/2013] [Indexed: 01/30/2023]
Abstract
The ability to modulate balance between cell survival and death is recognized for its great therapeutic potential. Therefore, research continues to focus on elucidation of cell machinery and signaling pathways that control cell proliferation and apoptosis. Conventional chemotherapeutic agents often have a cytostatic effect over tumor cells. New natural or synthetic chemotherapeutic agents have a wider spectrum of interesting antitumor activities that merit in-depth studies. In the present work, we aimed at characterizing the molecular mechanism leading to induction of cell death upon treatment of the lymphoblastoid cell line PL104 with caffeic acid phenylethyl ester (CAPE), MG132 and two conventional chemotherapeutic agents, doxorubicine (DOX) and vincristine (VCR). Our results showed several apoptotic hallmarks such as phosphatidylserine (PS) exposure on the outer leaflet of the cell membrane, nuclear fragmentation, and increase sub-G1 DNA content after all treatments. In addition, all four drugs downregulated survivin expression. CAPE and both chemotherapeutic agents reduced Bcl-2, while only CAPE and MG132 significantly increased Bax level. CAPE and VCR treatment induced the collapse of mitochondrial membrane potential (∆ψm). All compounds induced cytochrome c release from mitochondrial compartment to cytosol. However, only MG132 caused the translocation of Smac/DIABLO. Except for VCR treatment, all other drugs increased reactive oxygen species (ROS) production level. All treatments induced activation of caspases 3/7, but only CAPE and MG132 led to the activation of caspase 9. In conclusion, our results indicate that CAPE and MG132 treatment of PL104 cells induced apoptosis through the mitochondrial intrinsic pathway, whereas the apoptotic mechanism induced by DOX and VCR may proceed through the extrinsic pathway.
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Affiliation(s)
- Victoria Cavaliere
- Laboratorio de Inmunología Tumoral (LIT), IDEHU-CONICET, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina,
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18
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Lombardo T, Cavaliere V, Costantino SN, Kornblihtt L, Alvarez EM, Blanco GA. Synergism between arsenite and proteasome inhibitor MG132 over cell death in myeloid leukaemic cells U937 and the induction of low levels of intracellular superoxide anion. Toxicol Appl Pharmacol 2011; 258:351-66. [PMID: 22178740 DOI: 10.1016/j.taap.2011.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 11/21/2011] [Accepted: 11/28/2011] [Indexed: 10/14/2022]
Abstract
Increased oxygen species production has often been cited as a mechanism determining synergism on cell death and growth inhibition effects of arsenic-combined drugs. However the net effect of drug combination may not be easily anticipated solely from available knowledge of drug-induced death mechanisms. We evaluated the combined effect of sodium arsenite with the proteasome inhibitor MG132, and the anti-leukaemic agent CAPE, on growth-inhibition and cell death effect in acute myeloid leukaemic cells U937 and Burkitt's lymphoma-derived Raji cells, by the Chou-Talalay method. In addition we explored the association of cytotoxic effect of drugs with changes in intracellular superoxide anion (O₂⁻) levels. Our results showed that combined arsenite+MG132 produced low levels of O₂⁻ at 6h and 24h after exposure and were synergic on cell death induction in U937 cells over the whole dose range, although the combination was antagonistic on growth inhibition effect. Exposure to a constant non-cytotoxic dose of 80μM hydrogen peroxide together with arsenite+MG132 changed synergism on cell death to antagonism at all effect levels while increasing O₂⁻ levels. Arsenite+hydrogen peroxide also resulted in antagonism with increased O₂⁻ levels in U937 cells. In Raji cells, arsenite+MG132 also produced low levels of O₂⁻ at 6h and 24h but resulted in antagonism on cell death and growth inhibition. By contrast, the combination arsenite+CAPE showed high levels of O₂⁻ production at 6h and 24 h post exposure but resulted in antagonism over cell death and growth inhibition effects in U937 and Raji cells. We conclude that synergism between arsenite and MG132 in U937 cells is negatively associated to O₂⁻ levels at early time points after exposure.
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Affiliation(s)
- Tomás Lombardo
- Laboratorio de Immunotoxicologia (LaITO), IDEHU-CONICET, Hospital de Clínicas, José de San Martín, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
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Inhibitory effect of caffeic acid phenethyl ester on mice bearing tumor involving angiostatic and apoptotic activities. Chem Biol Interact 2010; 186:152-6. [PMID: 20433813 DOI: 10.1016/j.cbi.2010.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2010] [Revised: 04/13/2010] [Accepted: 04/19/2010] [Indexed: 11/23/2022]
Abstract
UNLABELLED This study aims at investigating the anti-tumor effect of caffeic acid phenethyl ester (CAPE) against animal carcinogenesis. In order to substantiate this fact implanted tumor Ehrlich carcinoma cells were assessed in vivo to Swiss mice strain. We found that administrating of CAPE (15 mg/kg S.C.) showed that the tumor volume decreased significantly by 51%. As a result, it improved animal chances of survival and they became healthier. An anti-angiogenic effect of CAPE in vivo was observed, as determined by a significant serum matrix metalloproteinase (MMP-9) reduction (142.1 ng/ml), activation of endostatin serum level (1.9 ng/ml), as well as DNA fragmentation in tumor treated mice when compared with untreated ones. CONCLUSION CAPE has a significant inhibitory effect on tumor in vivo. This inhibition may be related to its angiostatic and apoptotic effects. It also reduced angiogenic factors which may shift the equilibrium to the angiostatic effect of CAPE. These findings provide the possibility for the future use of CAPE as tumor therapy in human clinical trials.
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