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Méndez-Luna D, Guzmán-Velázquez S, Padilla-Martínez II, García-Sánchez JR, Bello M, García-Vázquez JB, Mendoza-Figueroa HL, Correa-Basurto J. GPER binding site detection and description: A flavonoid-based docking and molecular dynamics simulations study. J Steroid Biochem Mol Biol 2024; 239:106474. [PMID: 38307214 DOI: 10.1016/j.jsbmb.2024.106474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Accepted: 01/29/2024] [Indexed: 02/04/2024]
Abstract
Flavonoids, a phenolic compounds class widely distributed in the plant kingdom, have attracted much interest for their implications on several health and disease processes. Usually, the consumption of this type of compounds is approximately 1 g/d, primarily obtained from cereals, chocolate, and dry legumes ensuring its beneficial role in maintaining the homeostasis of the human body. In this context, in cancer disease prominent data points to the role of flavonoids as adjuvant treatment aimed at the regression of the disease. GPER, an estrogen receptor on the cell surface, has been postulated as a probable orchestrator of the beneficial effects of several flavonoids through modulation/inhibition of various mechanisms that lead to cancer progression. Therefore, applying pocket and cavity protein detection and docking and molecular dynamics simulations (MD), we generate, from a cluster composed of 39 flavonoids, crucial insights into the potential role as GPER ligands, of Puerarin, Isoquercetin, Kaempferol 3-O-glucoside and Petunidin 3-O-glucoside, aglycones whose sugar moiety delimits a new described sugar-acceptor sub-cavity into the cavity binding site on the receptor, as well as of the probable activation mechanism of the receptor and the pivotal residues involved in it. Altogether, our results shed light on the potential use of the aforementioned flavonoids as GPER ligands and for further evaluations in in vitro and in vivo assays to elucidate their probable anti-cancer activity.
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Affiliation(s)
- David Méndez-Luna
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico; Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía Gustavo A. Madero, C.P. 07738 Ciudad de México, Mexico.
| | - Sonia Guzmán-Velázquez
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía Gustavo A. Madero, C.P. 07738 Ciudad de México, Mexico.
| | - Itzia-Irene Padilla-Martínez
- Laboratorio de Química Supramolecular y Nanociencias, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Av. Acueducto s/n, Barrio la Laguna Ticomán, Alcaldía Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico.
| | - José-Rubén García-Sánchez
- Laboratorio de Oncología Molecular y Estrés Oxidativo, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico.
| | - Martiniano Bello
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico.
| | - Juan-Benjamín García-Vázquez
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico.
| | - Humberto-Lubriel Mendoza-Figueroa
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico.
| | - José Correa-Basurto
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Ciudad de México, Mexico.
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Estrogenic flavonoids and their molecular mechanisms of action. J Nutr Biochem 2023; 114:109250. [PMID: 36509337 DOI: 10.1016/j.jnutbio.2022.109250] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022]
Abstract
Flavonoids are a major group of phytoestrogens associated with physiological effects, and ecological and social impacts. Although the estrogenic activity of flavonoids was reported by researchers in the fields of medical, environmental and food studies, their molecular mechanisms of action have not been comprehensively reviewed. The estrogenic activity of the respective classes of flavonoids, anthocyanidins/anthocyanins, 2-arylbenzofurans/3-arylcoumarins/α-methyldeoxybenzoins, aurones/chalcones/dihydrochalcones, coumaronochromones, coumestans, flavans/flavan-3-ols/flavan-4-ols, flavanones/dihydroflavonols, flavones/flavonols, homoisoflavonoids, isoflavans, isoflavanones, isoflavenes, isoflavones, neoflavonoids, oligoflavonoids, pterocarpans/pterocarpenes, and rotenone/rotenoids, was summarized through a comprehensive literature search, and their structure-activity relationship, biological activities, signaling pathways, and applications were discussed. Although the respective classes of flavonoids contained at least one chemical mimicking estrogen, the mechanisms varied, such as those with estrogenic, anti-estrogenic, non-estrogenic, and biphasic activities, and additional activities through crosstalk/bypassing, which exert biological activities through cell signaling pathways. Such mechanistic variations of estrogen action are not limited to flavonoids and are observed among other broad categories of chemicals, thus this group of chemicals can be termed as the "estrogenome". This review article focuses on the connection of estrogen action mainly between the outer and the inner environments, which represent variations of chemicals and biological activities/signaling pathways, respectively, and form the basis to understand their applications. The applications of chemicals will markedly progress due to emerging technologies, such as artificial intelligence for precision medicine, which is also true of the study of the estrogenome including estrogenic flavonoids.
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Sun D, Chen Y, Liu X, Huang G, Cheng G, Yu C, Fang J. miR-34a-5p facilitates osteogenic differentiation of bone marrow mesenchymal stem cells and modulates bone metabolism by targeting HDAC1 and promoting ER-α transcription. Connect Tissue Res 2023; 64:126-138. [PMID: 36537660 DOI: 10.1080/03008207.2022.2108415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Metabolism is essential for bone development. The expressions of catabolic markers in chondrocytes show association with miR-34a-5p. This study discussed the mechanism by which miR-34a-5p regulates osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) as well as bone metabolism. METHODS Expressions of BMSC surface markers were determined via flow cytometry. Osteogenic differentiation of BMSCs was subsequently induced. miR-34a-5p mimic, oe-HDAC1, or ER-α activator Ferutinin was introduced in BMSCs. Alkaline phosphatase activity and calcification were detected. Expressions of miR-34a-5p, HDAC1, ER-α, and osteogenic markers were determined via RT-qPCR and Western blot. The binding relationship between miR-34a-5p and HDAC1 was verified by a dual-luciferase assay. Mice at the age of 6 months and 18 months were assigned to the young group and age group for in vivo experiments, and aged mice were treated with agomiR miR-34a-5p. Expressions of serum miR-34a-5p, HDAC1, ER-α, and bone metabolism markers in mice were determined. RESULTS Osteogenic medium-induced BMSCs manifested increased expressions of miR-34a-5p and ER-α and decreased HDAC1 expression. miR-34a-5p overexpression promoted osteogenic differentiation of BMSCs. miR-34a-5p targeted HDAC1. HDAC1 overexpression partially counteracted the promotional action of miR-34a-5p overexpression on osteogenic differentiation of BMSCs. miR-34a-5p overexpression activated ER-α. ER-α activator Ferutinin partially nullified the regulatory function of miR-34a-5p/HDAC1 on osteogenic differentiation of BMSCs. In vivo experiments showed that miR-34a-5p overexpression enhanced the potential of bone metabolism in aged mice. CONCLUSION miR-34a-5p overexpression promoted osteogenic differentiation of BMSCs and enhanced bone metabolism by promoting ER-α activation via targeting HDAC1.
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Affiliation(s)
- Dawei Sun
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yuhui Chen
- Department of Traumatic Surgery, Center of Orthopaedic Surgery, The Third affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Xiaochun Liu
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Guoying Huang
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Guoyun Cheng
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Chaoqun Yu
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Jia Fang
- Department of Orthopedics and Traumatology, Center of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou, China
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Oh JW, Muthu M, Pushparaj SSC, Gopal J. Anticancer Therapeutic Effects of Green Tea Catechins (GTCs) When Integrated with Antioxidant Natural Components. Molecules 2023; 28:molecules28052151. [PMID: 36903395 PMCID: PMC10004647 DOI: 10.3390/molecules28052151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
After decades of research and development concerning cancer treatment, cancer is still at large and very much a threat to the global human population. Cancer remedies have been sought from all possible directions, including chemicals, irradiation, nanomaterials, natural compounds, and the like. In this current review, we surveyed the milestones achieved by green tea catechins and what has been accomplished in cancer therapy. Specifically, we have assessed the synergistic anticarcinogenic effects when green tea catechins (GTCs) are combined with other antioxidant-rich natural compounds. Living in an age of inadequacies, combinatorial approaches are gaining momentum, and GTCs have progressed much, yet there are insufficiencies that can be improvised when combined with natural antioxidant compounds. This review highlights that there are not many reports in this specific area and encourages and recommends research attention in this direction. The antioxidant/prooxidant mechanisms of GTCs have also been highlighted. The current scenario and the future of such combinatorial approaches have been addressed, and the lacunae in this aspect have been discussed.
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Affiliation(s)
- Jae-Wook Oh
- Department of Stem Cell and Regenerative Biology, Konkuk University, Seoul 05029, Republic of Korea
| | - Manikandan Muthu
- Department of Research and Innovation, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, India
| | - Suraj Shiv Charan Pushparaj
- Department of Research and Innovation, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, India
| | - Judy Gopal
- Department of Research and Innovation, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, India
- Correspondence: ; Tel.: +91-44-66726677; Fax: +91-44-2681-1009
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Vitale S, Palumbo E, Polesel J, Hebert JR, Shivappa N, Montagnese C, Porciello G, Calabrese I, Luongo A, Prete M, Pica R, Grimaldi M, Crispo A, Esindi N, Falzone L, Mattioli V, Martinuzzo V, Poletto L, Cubisino S, Dainotta P, De Laurentiis M, Pacilio C, Rinaldo M, Thomas G, D'Aiuto M, Serraino D, Massarut S, Ferraù F, Rossello R, Catalano F, Banna GL, Messina F, Gatti D, Riccardi G, Libra M, Celentano E, Jenkins DJA, Augustin LSA. One-year nutrition counselling in the context of a Mediterranean diet reduced the dietary inflammatory index in women with breast cancer: a role for the dietary glycemic index. Food Funct 2023; 14:1560-1572. [PMID: 36655860 DOI: 10.1039/d2fo02198f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background: the Mediterranean diet, the low dietary glycemic index (GI) and the dietary inflammation index (DII®) have been associated with lower risk of breast cancer (BC) incidence and mortality. Objective: to investigate whether one-year nutrition counselling in the context of a Mediterranean diet, with or without low-GI carbohydrates counselling, may influence the DII in women with BC. Methods: data were obtained from participants of DEDiCa trial randomized to a Mediterranean diet (MD, n = 112) or a Mediterranean diet with low-GI carbohydrates (MDLGI, n = 111). The diet-derived DII and GI were calculated from 7-day food records while Mediterranean diet adherence from PREDIMED questionnaire. Differences between study arms were evaluated through Fisher's exact test or Mann-Whitney test and associations with multivariable regression analyses. Results: Mediterranean diet adherence significantly increased by 15% in MD and 20% in MDLGI with no difference between arms (p < 0.326). Dietary GI significantly decreased from 55.5 to 52.4 in MD and 55.1 to 47.6 in MDLGI with significant difference between arms (p < 0.001). DII significantly decreased by 28% in MD and 49% in MDLGI with no difference between arms (p < 0.360). Adjusting for energy intake (E-DII) did not change the results. Higher Mediterranean diet adherence and lower dietary GI independently contributed to DII lowering (β-coefficient -0.203, p < 0.001; 0.046, p = 0.003, respectively). Conclusions: DII and E-DII scores decreased significantly after one-year with 4 nutrition counselling sessions on the Mediterranean diet and low GI. Increased adherence to the Mediterranean diet and low GI independently contributed to the DII changes. These results are relevant given that lowering the inflammatory potential of the diet may have implications in cancer prognosis and overall survival.
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Affiliation(s)
- Sara Vitale
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Elvira Palumbo
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCSS, Aviano, Italy
| | - James R Hebert
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA.,Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC, 29201, USA
| | - Nitin Shivappa
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, USA.,Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC, 29201, USA
| | | | - Giuseppe Porciello
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Ilaria Calabrese
- Healtcare Direction, "A. Cardarelli" Hospital, 80131 Naples, Italy
| | - Assunta Luongo
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Melania Prete
- Division of Radiotherapy, "Istituto Nazionale Tumori IRCCS Fondazione Pascale - IRCCS di Napoli", 80131, Naples, Italy
| | - Rosa Pica
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Maria Grimaldi
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Anna Crispo
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Nadia Esindi
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Luca Falzone
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - Veronica Mattioli
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCSS, Aviano, Italy
| | - Valentina Martinuzzo
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCSS, Aviano, Italy
| | - Luigina Poletto
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCSS, Aviano, Italy
| | - Serena Cubisino
- Department of Biomedical and Biotechnological Sciences, Oncologic, Clinical and General Pathology Section, University of Catania, Catania, Italy
| | - Patrizia Dainotta
- Department of Biomedical and Biotechnological Sciences, Oncologic, Clinical and General Pathology Section, University of Catania, Catania, Italy
| | - Michelino De Laurentiis
- Division of Breast Oncology, Istituto Nazionale Tumori - IRCCS "Fondazione Giovanni Pascale", Naples, Italy
| | - Carmen Pacilio
- Division of Breast Oncology, Istituto Nazionale Tumori - IRCCS "Fondazione Giovanni Pascale", Naples, Italy
| | | | | | | | - Diego Serraino
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCSS, Aviano, Italy
| | - Samuele Massarut
- Chirurgia Oncologica del Seno - Centro di Riferimento Oncologico (CRO) IRCCS, Aviano, Italy
| | | | | | | | | | | | | | - Gabriele Riccardi
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, Oncologic, Clinical and General Pathology Section, University of Catania, Catania, Italy
| | - Egidio Celentano
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
| | - David J A Jenkins
- Department of Nutritional Sciences and Medicine, Temerty, Faculty of Medicine, University of Toronto, Toronto, Canada.,Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada.,Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, Canada.,Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Canada
| | - Livia S A Augustin
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy.
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Chimento A, D’Amico M, De Luca A, Conforti FL, Pezzi V, De Amicis F. Resveratrol, Epigallocatechin Gallate and Curcumin for Cancer Therapy: Challenges from Their Pro-Apoptotic Properties. Life (Basel) 2023; 13:life13020261. [PMID: 36836619 PMCID: PMC9962739 DOI: 10.3390/life13020261] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/20/2023] Open
Abstract
Plant-derived bioactive compounds are gaining wide attention for their multiple health-promoting activities and in particular for their anti-cancer properties. Several studies have highlighted how they can prevent cancer initiation and progression, improve the effectiveness of chemotherapy, and, in some cases, limit some of the side effects of chemotherapy agents. In this paper, we provide an update of the literature on the anti-cancer effects of three extensively studied plant-derived compounds, namely resveratrol, epigallocatechin gallate, and curcumin, with a special focus on the anti-cancer molecular mechanisms inducing apoptosis in the major types of cancers globally.
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Affiliation(s)
- Adele Chimento
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Maria D’Amico
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
- Health Center, University of Calabria, 87036 Rende, Italy
| | - Arianna De Luca
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Francesca Luisa Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
- Health Center, University of Calabria, 87036 Rende, Italy
| | - Vincenzo Pezzi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
- Health Center, University of Calabria, 87036 Rende, Italy
- Correspondence: ; Tel.: +39-0984-496204
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Combination Therapy Using Polyphenols: An Efficient Way to Improve Antitumoral Activity and Reduce Resistance. Int J Mol Sci 2022; 23:ijms231810244. [PMID: 36142147 PMCID: PMC9499610 DOI: 10.3390/ijms231810244] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Polyphenols represent a structural class of mainly natural organic chemicals that contain multiple phenol structural units. The beneficial properties of polyphenols have been extensively studied for their antitumor, anti-inflammatory, and antibacterial effects, but nowadays, their medical applications are starting to be extended to many other applications due to their prebiotic role and their impact on the microbiota. This review focused on the use of polyphenols in cancer treatment. Their antineoplastic effects have been demonstrated in various studies when they were tested on numerous cancer lines and some in in vivo models. A431 and SCC13 human skin cancer cell lines treated with EGCG presented a reduced cell viability and enhanced cell death due to the inactivation of β-catenin signaling. Additionally, resveratrol showed a great potential against breast cancer mainly due to its ability to exert both anti-estrogenic and estrogenic effects (based on the concentration) and because it has a high affinity for estrogen receptors ERα and Erβ. Polyphenols can be combined with different classical cytostatic agents to enhance their therapeutic effects on cancer cells and to also protect healthy cells from the aggressiveness of antitumor drugs due to their anti-inflammatory properties. For instance, curcumin has been reported to reduce the gastrointestinal toxicity associated with chemotherapy. In the case of 5-FU-induced, it reduced the gastrointestinal toxicity by increasing the intestinal permeability and inhibiting mucosal damage. Co-administration of EGCG and doxorubicin induced the death of liver cancer cells. EGCG has the ability to inhibit autophagic activity and stop hepatoma Hep3B cell proliferation This symbiotic approach is well-known in medical practice including in multiple chemotherapy.
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Augimeri G, Bonofiglio D. The Mediterranean Diet as a Source of Natural Compounds: Does It Represent a Protective Choice against Cancer? Pharmaceuticals (Basel) 2021; 14:ph14090920. [PMID: 34577620 PMCID: PMC8467442 DOI: 10.3390/ph14090920] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/11/2022] Open
Abstract
The Mediterranean diet (MD), characterized by a high intake of fruits, vegetables, legumes, nuts and grains, a moderate intake of red wine and a reduced consumption of meat, has been considered one of the healthiest dietary patterns worldwide. Growing evidence suggests an inverse relationship between high adherence to the MD and cancer, as well as other chronic degenerative diseases. The beneficial effects elicited by the MD pattern on cancer are due to the high contents of bioactive compounds contained in many foods of MD, which protect cells by oxidative and inflammatory processes and inhibit carcinogenesis by targeting the various hallmarks of cancer with different mechanisms of action. Although over the past decades numerous dietary and phytochemical compounds from Mediterranean food that have anticancer potential have been identified, a clear association between the MD eating pattern and cancer needs to be established. While we wait for answers to this question from well-conducted research, the empowering of the MD as a protective choice against cancer should represent the priority for public health policies.
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Affiliation(s)
- Giuseppina Augimeri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy;
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy;
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
- Correspondence: ; Tel.: +39-0984-496208
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Romano A, Martel F. The Role of EGCG in Breast Cancer Prevention and Therapy. Mini Rev Med Chem 2021; 21:883-898. [PMID: 33319659 DOI: 10.2174/1389557520999201211194445] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 09/02/2020] [Accepted: 09/05/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Breast cancer is the most frequent cancer in women. Green tea has been studied for breast cancer chemopreventive and possibly chemotherapeutic effects due to its high content in polyphenolic compounds, including epigallocatechin-3-gallate (EGCG). METHOD This review is based on literature research that included papers registered on the Medline® database. The research was conducted through PubMed, applying the following query: "EGCG"AND "breast cancer". The result was a total of 88 articles in which this review stands on. RESULTS In vitro, EGCG shows antioxidant or pro-oxidant properties, depending on the concentration and exposure time. EGCG blocks cell cycle progression and modulates signaling pathways that affect cell proliferation and differentiation. EGCG also induces apoptosis, negatively modulates different steps involved in metastasis, and targets angiogenesis by inhibiting VEGF transcription. In vivo investigations have shown that oral administration of EGCG results in the reduction of tumor growth and in antimetastatic and antiangiogenic effects in animal xenograft and allograft models. DISCUSSION Much remains unknown about the molecular mechanisms involved in the protective effects of EGCG on mammary carcinogenesis. In addition, more studies in vivo are necessary to determine the potential toxicity of EGCG at higher doses and to elucidate its interactions with other drugs. CONCLUSION A protective effect of EGCG has been shown in different experimental models and under different experimental conditions, suggesting clinical implications of EGCG for breast cancer prevention and therapy. The data presented in this review support the importance of further investigations.
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Affiliation(s)
- Adriana Romano
- Faculty of Medicine of University of Porto, Porto, Portugal
| | - Fátima Martel
- Department of Biomedicine-Unit of Biochemistry, Faculty of Medicine of University of Porto, Porto, Portugal and Instituto de Investigacao e Inovacao em Saude(i3S), University of Porto, Porto, Portugal
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Chandra G, Patel S, Panchal M, Singh DV. S-adenosyl-L-homocysteine Hydrolase: Its Inhibitory Activity Against Plasmodium falciparum and Development of Malaria Drugs. Mini Rev Med Chem 2021; 21:833-846. [PMID: 33342411 DOI: 10.2174/1389557521666201218155321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022]
Abstract
Parasite Plasmodium falciparum is continuously giving a challenge to human beings by changing itself against most of the antimalarial drugs and its consequences can be seen in the form of a huge number of deaths each year especially in the poor and developing country. Due to its drug resistance ability, new drugs are regularly needed to kill the organism. Many new drugs have been developed based on different mechanisms. One of the potential mechanisms is to hamper protein synthesis by blocking the gene expression. S-Adenosyl-L-homocysteine (SAH) hydrolase is a NAD+ dependent tetrameric enzyme, which is responsible for the reversible hydrolysis of AdoHcy to adenosine and L-homocysteine, has been recognized as a new target for antimalarial agents since the parasite has a specific SAH hydrolase. The inhibition of SAH hydrolase causes the intracellular accumulation of S-Adenosyl-L-homocysteine, elevating the ratio of SAH to S-adenosylmethionine (SAM) and inhibiting SAM-dependent methyltransferase that catalyzes methylation of the capped structure at the 5'-terminus of mRNA, and other methylation reaction which is essential for parasite proliferation. In other words, S-Adenosyl-Lhomocysteine hydrolase regulates methyltransferase reactions. In this way, SAH hydrolase inhibitors can be used for the treatment of different diseases like malaria, cancer, viral infection, etc. by ultimately stopping the synthesis of protein. Many antiviral drugs have been synthesized and marketed which are based on the inhibition of SAH hydrolase. This review summarises the development of SAH inhibitors developed over the last 20 years and their potentiality for the treatment of malaria.
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Affiliation(s)
- Girish Chandra
- Department of Chemistry, School of Physical and Chemical Sciences, Central University of South Bihar, Gaya, Bihar, India
| | - Samridhi Patel
- Department of Chemistry, School of Physical and Chemical Sciences, Central University of South Bihar, Gaya, Bihar, India
| | - Manoj Panchal
- Department of Life Science, School of Earth, Biological and Environmental Science, Central University of South Bihar, Gaya, Bihar, India
| | - Durg Vijay Singh
- Department of Bioinformatics, School of Earth, Biological and Environmental Science, Central University of South Bihar, Gaya, Bihar, India
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Augimeri G, Montalto FI, Giordano C, Barone I, Lanzino M, Catalano S, Andò S, De Amicis F, Bonofiglio D. Nutraceuticals in the Mediterranean Diet: Potential Avenues for Breast Cancer Treatment. Nutrients 2021; 13:2557. [PMID: 34444715 PMCID: PMC8400469 DOI: 10.3390/nu13082557] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 12/12/2022] Open
Abstract
The traditional Mediterranean Diet constitutes a food model that refers to the dietary patterns of the population living in countries bordering the Mediterranean Sea in the early 1960s. A huge volume of literature data suggests that the Mediterranean-style diet provides several dietary compounds that have been reported to exert beneficial biological effects against a wide spectrum of chronic illnesses, such as cardiovascular and neurodegenerative diseases and cancer including breast carcinoma. Among bioactive nutrients identified as protective factors for breast cancer, natural polyphenols, retinoids, and polyunsaturated fatty acids (PUFAs) have been reported to possess antioxidant, anti-inflammatory, immunomodulatory and antitumoral properties. The multiple anticancer mechanisms involved include the modulation of molecular events and signaling pathways associated with cell survival, proliferation, differentiation, migration, angiogenesis, antioxidant enzymes and immune responses. This review summarizes the anticancer action of some polyphenols, like resveratrol and epigallocatechin 3-gallate, retinoids and omega-3 PUFAs by highlighting the important hallmarks of cancer in terms of (i) cell cycle growth arrest, (ii) apoptosis, (iii) inflammation and (iv) angiogenesis. The data collected from in vitro and in vivo studies strongly indicate that these natural compounds could be the prospective candidates for the future anticancer therapeutics in breast cancer disease.
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Affiliation(s)
- Giuseppina Augimeri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
| | - Francesca Ida Montalto
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
| | - Cinzia Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Marilena Lanzino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy; (G.A.); (F.I.M.); (C.G.); (I.B.); (M.L.); (S.C.); (S.A.); (F.D.A.)
- Centro Sanitario, University of Calabria, 87036 Arcavacata di Rende, Italy
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Núñez-Iglesias MJ, Novio S, García C, Pérez-Muñuzuri ME, Martínez MC, Santiago JL, Boso S, Gago P, Freire-Garabal M. Co-Adjuvant Therapy Efficacy of Catechin and Procyanidin B2 with Docetaxel on Hormone-Related Cancers In Vitro. Int J Mol Sci 2021; 22:7178. [PMID: 34281228 PMCID: PMC8268784 DOI: 10.3390/ijms22137178] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 01/16/2023] Open
Abstract
Prostate (PC) and breast cancer (BC) are heterogeneous hormonal cancers. Treatment resistance and adverse effects are the main limitations of conventional chemotherapy treatment. The use of sensitizing agents could improve the effectiveness of chemotherapeutic drugs as well as obviate these limitations. This study analyzes the effect of single catechin (CAT), procyanidin B2 (ProB2) treatment as well as the co-adjuvant treatment of each of these compounds with docetaxel (DOCE). We used PC- and BC-derived cell lines (PC3, DU-145, T47D, MCF-7 and MDA-MB-231). The short and long-term pro-apoptotic, anti-proliferative and anti-migratory effects were analyzed. RT-qPCR was used to discover molecular bases of the therapeutic efficacy of these compounds. ProB2 treatment induced a two- to five-fold increase in anti-proliferative and pro-apoptotic effects compared to single DOCE treatment, and also had a more sensitizing effect than DOCE on DU145 cells. Regarding BC cells, ProB2- and CAT-mediated sensitization to DOCE anti-proliferative and pro-apoptotic effects was cell-independent and cell-dependent, respectively. Combined treatment led to high-efficacy effects on MCF-7 cells, which were associated to the up-regulation of CDKN1A, BAX, caspase 9 and E-cadherin mRNA under combined treatment compared to single DOCE treatment. CAT and ProB2 can enhance the efficacy of DOCE therapy on PC and BC cells by the sensitizing mechanism.
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Affiliation(s)
- Mª Jesús Núñez-Iglesias
- SNL Laboratory, School of Medicine and Dentistry, University of Santiago de Compostela, c/San Francisco, s/n, Santiago de Compostela, 15782 A Coruña, Spain; (M.J.N.-I.); (C.G.); (M.E.P.-M.); (M.F.-G.)
| | - Silvia Novio
- SNL Laboratory, School of Medicine and Dentistry, University of Santiago de Compostela, c/San Francisco, s/n, Santiago de Compostela, 15782 A Coruña, Spain; (M.J.N.-I.); (C.G.); (M.E.P.-M.); (M.F.-G.)
| | - Carlota García
- SNL Laboratory, School of Medicine and Dentistry, University of Santiago de Compostela, c/San Francisco, s/n, Santiago de Compostela, 15782 A Coruña, Spain; (M.J.N.-I.); (C.G.); (M.E.P.-M.); (M.F.-G.)
| | - Mª Elena Pérez-Muñuzuri
- SNL Laboratory, School of Medicine and Dentistry, University of Santiago de Compostela, c/San Francisco, s/n, Santiago de Compostela, 15782 A Coruña, Spain; (M.J.N.-I.); (C.G.); (M.E.P.-M.); (M.F.-G.)
| | - María-Carmen Martínez
- Group of Viticulture, Olive and Rose (VIOR), Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas (CSIC), Carballeira 8, 36143 Salcedo, Spain; (M.-C.M.); (J.-L.S.); (S.B.); (P.G.)
| | - José-Luis Santiago
- Group of Viticulture, Olive and Rose (VIOR), Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas (CSIC), Carballeira 8, 36143 Salcedo, Spain; (M.-C.M.); (J.-L.S.); (S.B.); (P.G.)
| | - Susana Boso
- Group of Viticulture, Olive and Rose (VIOR), Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas (CSIC), Carballeira 8, 36143 Salcedo, Spain; (M.-C.M.); (J.-L.S.); (S.B.); (P.G.)
| | - Pilar Gago
- Group of Viticulture, Olive and Rose (VIOR), Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas (CSIC), Carballeira 8, 36143 Salcedo, Spain; (M.-C.M.); (J.-L.S.); (S.B.); (P.G.)
| | - Manuel Freire-Garabal
- SNL Laboratory, School of Medicine and Dentistry, University of Santiago de Compostela, c/San Francisco, s/n, Santiago de Compostela, 15782 A Coruña, Spain; (M.J.N.-I.); (C.G.); (M.E.P.-M.); (M.F.-G.)
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Liu X, Liu M, Ma H, Wang J, Zheng Y. miR-875 Serves as A Candidate Biomarker for Detection and Prognosis and Is Correlated with PHH3 Index Levels in Breast Cancer Patients. Clin Breast Cancer 2021; 22:e199-e205. [PMID: 34281802 DOI: 10.1016/j.clbc.2021.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 06/07/2021] [Accepted: 06/14/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND miRNAs play crucial roles in cancers. This study investigated the potential value of miR-875 to be a detective or/and prognostic marker and evaluate the correlation between its expression and PHH3 index levels in breast cancer. METHODS miR-875 expression was determined in breast cancer serum and tissues by a quantitative real-time reverse transcription-polymerase chain reaction. The detective value of serum miR-875 expression for breast cancer was assessed by receiver operating characteristic analysis. Then the associations of miR-875 expression with clinical characteristics of patients and overall survival were evaluated by χ2 test and Kaplan-Meier curve methods, respectively. RESULTS The expression of miR-875 was increased in both breast cancer serum and tissues compared with respective controls. The high miR-875 expression in serum and tissues was associated with positive lymph node metastasis and advanced TNM stages. Besides, miR-875 expression in tissues was positively associated with the PHH3 index. And serum miR-875 could screen breast cancer patients from healthy individuals. Moreover, breast cancer patients with both high expression of miR-875 and PHH3 index had shorter overall survival. CONCLUSION This study suggested that miR-875 expression may be suitable as a potential breast cancer detection and prognosis biomarker. And the miR-875 expression in tissues was positively associated with the PHH3 index, suggesting that miR-875 expression may be involved in tumor proliferation of breast cancer.
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Affiliation(s)
- Xiaokang Liu
- Department of Oncology, The People's Hospital of Guangrao, Dongying, Shandong 257300, China
| | - Mengshu Liu
- Department of Gastroenterology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530000, China
| | - Haiming Ma
- Department of Oncology, The People's Hospital of Guangrao, Dongying, Shandong 257300, China
| | - Jin Wang
- Department of Oncology, The People's Hospital of Guangrao, Dongying, Shandong 257300, China
| | - Yuenan Zheng
- Department of General Surgery, The People's Hospital of Guangrao, Dongying, Shandong 257300, China.
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Paternal Inheritance of Bisphenol A Cardiotoxic Effects: The Implications of Sperm Epigenome. Int J Mol Sci 2021; 22:ijms22042125. [PMID: 33672782 PMCID: PMC7924642 DOI: 10.3390/ijms22042125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022] Open
Abstract
Parental exposure to bisphenol A (BPA) has been linked to a greater incidence of congenital diseases. We have demonstrated that BPA induces in zebrafish males an increase in the acetylation of sperm histones that is transmitted to the blastomeres of the unexposed progeny. This work is aimed to determine whether histone hyperacetylation promoted by paternal exposure to BPA is the molecular mechanism underlying the cardiogenesis impairment in the descendants. Zebrafish males were exposed to 100 and 2000 µg/L BPA during early spermatogenesis and mated with non-exposed females. We analyzed in the progeny the expression of genes involved in cardiogenesis and the epigenetic profile. Once the histone hyperacetylation was confirmed, treatment with epigallocatechin gallate (EGCG), an inhibitor of histone acetyltransferases, was assayed on F1 embryos. Embryos from males exposed to 2000 µg/L BPA overexpressed the transcription factor hand2 and the receptor esr2b, showing their own promoters—as well as that of kat6a—an enrichment in H3K9ac. In embryos treated with EGCG, both gene expression and histone acetylation (global and specific) returned to basal levels, and the phenotype was recovered. As shown by the results, the histone hyperacetylated landscape promoted by BPA in the sperm alters the chromatin structure of the progeny, leading to the overexpression of the histone acetyltransferase and genes involved in cardiogenesis.
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Alternaria toxins as casein kinase 2 inhibitors and possible consequences for estrogenicity: a hybrid in silico/in vitro study. Arch Toxicol 2020; 94:2225-2237. [PMID: 32328700 PMCID: PMC7303061 DOI: 10.1007/s00204-020-02746-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/08/2020] [Indexed: 01/05/2023]
Abstract
Emerging mycotoxins produced by Alternaria spp. were previously reported to exert cytotoxic, genotoxic, but also estrogenic effects in human cells. The involved mechanisms are very complex and not fully elucidated yet. Thus, we followed an in silico target fishing approach to extend knowledge on the possible biological targets underlying the activity of alternariol, taken as the signature compound of Alternaria toxins. Combining ligand-based screening and structure-based modeling, the ubiquitous casein kinase 2 (CK2) was identified as a potential target for the compound. This result was validated in a cell-free in vitro CK2 activity assay, where alternariol inhibited CK2 with an IC50 of 707 nM. As CK2 was recently discussed to influence estrogen receptor (ER) transcription and DNA-binding affinity, we assessed a potential impact on the mRNA levels of ERα or ERβ by qRT-PCR and on nuclear localization of the receptors by confocal microscopy, using estrogen-sensitive Ishikawa cells as a model. While AOH did not affect the transcription of ERα or ERβ, an increase in nuclear localization of ERα after incubation with 10 µM AOH was observed. However, this effect might be due to ER binding affinity and therefore estrogenicity of AOH. Furthermore, in silico docking simulation revealed not only AOH, but also a number of other Alternaria toxins as potential inhibitors of CK2, including alternariol monomethyl ether and the perylene quinone derivative altertoxin II (ATX-II). These findings were representatively confirmed in vitro for the perylene quinone derivative altertoxin II, which was found to inhibit the kinase with an IC50 of 5.1 µM. Taken together, we propose CK2 inhibition as an additional mechanism to consider in future studies for alternariol and several other Alternaria toxins.
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Luo H, Vong CT, Chen H, Gao Y, Lyu P, Qiu L, Zhao M, Liu Q, Cheng Z, Zou J, Yao P, Gao C, Wei J, Ung COL, Wang S, Zhong Z, Wang Y. Naturally occurring anti-cancer compounds: shining from Chinese herbal medicine. Chin Med 2019; 14:48. [PMID: 31719837 PMCID: PMC6836491 DOI: 10.1186/s13020-019-0270-9] [Citation(s) in RCA: 280] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/23/2019] [Indexed: 12/24/2022] Open
Abstract
Numerous natural products originated from Chinese herbal medicine exhibit anti-cancer activities, including anti-proliferative, pro-apoptotic, anti-metastatic, anti-angiogenic effects, as well as regulate autophagy, reverse multidrug resistance, balance immunity, and enhance chemotherapy in vitro and in vivo. To provide new insights into the critical path ahead, we systemically reviewed the most recent advances (reported since 2011) on the key compounds with anti-cancer effects derived from Chinese herbal medicine (curcumin, epigallocatechin gallate, berberine, artemisinin, ginsenoside Rg3, ursolic acid, silibinin, emodin, triptolide, cucurbitacin B, tanshinone I, oridonin, shikonin, gambogic acid, artesunate, wogonin, β-elemene, and cepharanthine) in scientific databases (PubMed, Web of Science, Medline, Scopus, and Clinical Trials). With a broader perspective, we focused on their recently discovered and/or investigated pharmacological effects, novel mechanism of action, relevant clinical studies, and their innovative applications in combined therapy and immunomodulation. In addition, the present review has extended to describe other promising compounds including dihydroartemisinin, ginsenoside Rh2, compound K, cucurbitacins D, E, I, tanshinone IIA and cryptotanshinone in view of their potentials in cancer therapy. Up to now, the evidence about the immunomodulatory effects and clinical trials of natural anti-cancer compounds from Chinese herbal medicine is very limited, and further research is needed to monitor their immunoregulatory effects and explore their mechanisms of action as modulators of immune checkpoints.
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Affiliation(s)
- Hua Luo
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Chi Teng Vong
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Hanbin Chen
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Yan Gao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Peng Lyu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Ling Qiu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Mingming Zhao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Qiao Liu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Zehua Cheng
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Jian Zou
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Peifen Yao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Caifang Gao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Jinchao Wei
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Carolina Oi Lam Ung
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Shengpeng Wang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Zhangfeng Zhong
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Yitao Wang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
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Chen J, Chen L, Lu T, Xie Y, Li C, Jia Z, Cao J. ERα36 is an effective target of epigallocatechin-3-gallate in hepatocellular carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:3222-3234. [PMID: 31934166 PMCID: PMC6949832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Epigallocatechin-3-gallate (EGCG) is a natural product with potential anti-cancer property whose direct target has not been identified. This study intended to investigate ERα36, a new isoform of estrogen receptor alpha (ERa), as a therapeutic target of EGCG in hepatocellular carcinoma (HCC). In this work, we examined the expression level of ERs in HCC cell lines and a normal human liver cell line, and evaluated inhibition effect of EGCG on these cells in vitro, and further on Hep3B in vivo. The results showed that ERα36 was the main ER in HCC cells and served as a biomarker of responsiveness to EGCG inhibition, and there was a positive correlation between ERα36 expression level and inhibitory effect of EGCG as indicated by IC50. In vivo experiments also showed dose-dependent inhibition of EGCG on ERα36 high-expressing Hep3B. EGCG exerted inhibition on Hep3B cells by both anti-proliferation and pro-apoptosis. ERα36-EGFR-Her-2 feedback loop, PI3K/Akt and MAPK/ERK pathways were inhibited, while caspase 3 was activated by EGCG in Hep3B cells, with p-ERK accumulated in cytoplasm. The inhibitory effect of EGCG was significantly attenuated when ERα36 was pre-activated. This is the first evidence that EGCG exerts its anti-cancer effect by inhibiting ERα36, followed with inhibition of the ERα36-EGFR-Her-2 feedback loop and PI3K/Akt, MAPK/ERK pathway, activation of caspase 3, and accumulation of p-ERK in cytoplasm. It suggests that ERα36 might be an efficient target of EGCG in HCC.
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Affiliation(s)
- Jing Chen
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
| | - Lihong Chen
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
| | - Ting Lu
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
| | - Yuqiong Xie
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
| | - Chunchun Li
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
| | - Zhenyu Jia
- Institute of Occupational Diseases, Zhejiang Academy of Medical SciencesHangzhou 310013, Zhejiang Province, China
| | - Jiang Cao
- Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of MedicineHangzhou 310009, Zhejiang Province, China
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Rady I, Mohamed H, Rady M, Siddiqui IA, Mukhtar H. Cancer preventive and therapeutic effects of EGCG, the major polyphenol in green tea. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2017.12.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Islam Rady
- School of Medicine and Public Health, Department of Dermatology, University of Wisconsin-Madison, WI 53706, USA
- Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Hadir Mohamed
- School of Medicine and Public Health, Department of Dermatology, University of Wisconsin-Madison, WI 53706, USA
| | - Mohamad Rady
- Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Imtiaz A. Siddiqui
- School of Medicine and Public Health, Department of Dermatology, University of Wisconsin-Madison, WI 53706, USA
| | - Hasan Mukhtar
- School of Medicine and Public Health, Department of Dermatology, University of Wisconsin-Madison, WI 53706, USA
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Lombó M, González-Rojo S, Fernández-Díez C, Herráez MP. Cardiogenesis impairment promoted by bisphenol A exposure is successfully counteracted by epigallocatechin gallate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:1008-1019. [PMID: 31126002 DOI: 10.1016/j.envpol.2019.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/11/2018] [Accepted: 01/02/2019] [Indexed: 05/18/2023]
Abstract
Exposure to the emerging contaminant bisphenol A (BPA) is ubiquitous and associated with cardiovascular disorders. BPA effect as endocrine disruptor is widely known but other mechanisms underlying heart disease, such as epigenetic modifications, remain still unclear. A compound of green tea, epigallocatechin gallate (EGCG), may act both as anti-estrogen and as inhibitor of some epigenetic enzymes. The aims of this study were to analyze the molecular processes related to BPA impairment of heart development and to prove the potential ability of EGCG to neutralize the toxic effects caused by BPA on cardiac health. Zebrafish embryos were exposed to 2000 and 4000 μg/L BPA and treated with 50 and 100 μM EGCG. Heart malformations were assessed at histological level and by confocal imaging. Expression of genes involved in cardiac development, estrogen receptors and epigenetic enzymes was analyzed by qPCR whereas epigenetic modifications were evaluated by whole mount immunostaining. BPA embryonic exposure led to changes in cardiac phenotype, induced an overexpression of hand2, a crucial factor for cardiomyocyte differentiation, increased the expression of estrogen receptor (esr2b), promoted an overexpression of a histone acetyltransferase (kat6a) and also caused an increase in histone acetylation, both mechanisms being able to act in sinergy. EGCG treatment neutralized all the molecular alterations caused by BPA, allowing the embryos to go on with a proper heart development. Both molecular mechanisms of BPA action (estrogenic and epigenetic) likely lying behind cardiogenesis impairment were successfully counteracted by EGCG treatment.
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Affiliation(s)
- Marta Lombó
- Department of Molecular Biology, Faculty of Biology and Environmental Sciences, Universidad de León, Campus de Vegazana, León, 24071, Spain
| | - Silvia González-Rojo
- Department of Molecular Biology, Faculty of Biology and Environmental Sciences, Universidad de León, Campus de Vegazana, León, 24071, Spain
| | - Cristina Fernández-Díez
- Department of Molecular Biology, Faculty of Biology and Environmental Sciences, Universidad de León, Campus de Vegazana, León, 24071, Spain
| | - María Paz Herráez
- Department of Molecular Biology, Faculty of Biology and Environmental Sciences, Universidad de León, Campus de Vegazana, León, 24071, Spain.
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21
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Sharif R, Bak-Nielsen S, Hjortdal J, Karamichos D. Pathogenesis of Keratoconus: The intriguing therapeutic potential of Prolactin-inducible protein. Prog Retin Eye Res 2018; 67:150-167. [PMID: 29758268 PMCID: PMC6235698 DOI: 10.1016/j.preteyeres.2018.05.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/25/2018] [Accepted: 05/08/2018] [Indexed: 12/15/2022]
Abstract
Keratoconus (KC) is the most common ectatic corneal disease, with clinical findings that include discomfort, visual disturbance and possible blindness if left untreated. KC affects approximately 1:400 to 1:2000 people worldwide, including both males and females. The aetiology and onset of KC remains a puzzle and as a result, the ability to treat or reverse the disease is hampered. Sex hormones are known to play a role in the maintenance of the structure and integrity of the human cornea. Hormone levels have been reported to alter corneal thickness, curvature, and sensitivity during different times of menstrual cycle. Surprisingly, the role of sex hormones in corneal diseases and KC has been largely neglected. Prolactin-induced protein, known to be regulated by sex hormones, is a new KC biomarker that has been recently proposed. Studies herein discuss the role of sex hormones as a control mechanism for KC onset and progression and evidence supporting the view that prolactin-induced protein is an important hormonally regulated biomarker in KC is discussed.
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Affiliation(s)
- Rabab Sharif
- Department of Cell Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, Oklahoma City, OK 73104, United States
| | - Sashia Bak-Nielsen
- Department of Ophthalmology, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Jesper Hjortdal
- Department of Ophthalmology, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Dimitrios Karamichos
- Department of Cell Biology, University of Oklahoma Health Sciences Center, 975 NE 10th Street, Oklahoma City, OK 73104, United States; Department of Ophthalmology/Dean McGee Eye Institute, University of Oklahoma Health Science Center, 608 Stanton L. Young Blvd, Oklahoma City, OK 73104, United States.
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22
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Luo X, Guo L, Zhang L, Hu Y, Shang D, Ji D. Bioinformatics analysis of microarray profiling identifies the mechanism of focal adhesion kinase signalling pathway in proliferation and apoptosis of breast cancer cells modulated by green tea polyphenol epigallocatechin 3-gallate. J Pharm Pharmacol 2018; 70:1606-1618. [PMID: 30187481 DOI: 10.1111/jphp.13010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/10/2018] [Indexed: 12/21/2022]
Abstract
OBJECTIVES This study aimed to investigate potential gene and signal pathway associated with tumour progression. METHODS Related microarray data set of breast cancer was obtained from Gene Expression Omnibus database, and differential-expressed genes (DEGs) between two control samples and two treated samples were analysed using statistical software R. We collected 50 epigallocatechin-3-gallate(EGCG)-related genes and 119 breast cancer-related genes to create a knowledge base for following pathway analysis. KEY FINDINGS A total of 502 mRNAs were identified as DEGs based on microarray analysis. Upregulated DEGs mainly enriched in nuclear nucleosome, cell adhesion, DNA packaging complex, Wnt-activated receptor activity, etc., while the downregulated DEGs significantly enriched in ncRNA processing, mitotic nuclear division, DNA helicase activity, etc. DEGs mostly enriched in gap junction, cell cycle, oxidative phosphorylation, focal adhesion, etc. EGCG suppressed FAK signalling pathway. Furthermore, EGCG could inhibit breast cancer cell proliferation and promote apoptosis by modulating CCND1. CONCLUSIONS Epigallocatechin 3-gallate might exert influence on breast cancer progression through inhibiting focal adhesion kinase (FAK) signalling pathway.
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Affiliation(s)
- Xiao Luo
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Lihua Guo
- Department of Dialysis Room of Nephrology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Lirong Zhang
- Department of Pathology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yu Hu
- Department of Pathology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Dongmei Shang
- Department of Outpatient, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Degang Ji
- Department of Hepatopancreatobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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23
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Younas M, Hano C, Giglioli-Guivarc'h N, Abbasi BH. Mechanistic evaluation of phytochemicals in breast cancer remedy: current understanding and future perspectives. RSC Adv 2018; 8:29714-29744. [PMID: 35547279 PMCID: PMC9085387 DOI: 10.1039/c8ra04879g] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/15/2018] [Indexed: 12/30/2022] Open
Abstract
Breast cancer is one of the most commonly diagnosed cancers around the globe and accounts for a large proportion of fatalities in women. Despite the advancement in therapeutic and diagnostic procedures, breast cancer still represents a major challenge. Current anti-breast cancer approaches include surgical removal, radiotherapy, hormonal therapy and the use of various chemotherapeutic drugs. However, drug resistance, associated serious adverse effects, metastasis and recurrence complications still need to be resolved which demand safe and alternative strategies. In this scenario, phytochemicals have recently gained huge attention due to their safety profile and cost-effectiveness. These phytochemicals modulate various genes, gene products and signalling pathways, thereby inhibiting breast cancer cell proliferation, invasion, angiogenesis and metastasis and inducing apoptosis. Moreover, they also target breast cancer stem cells and overcome drug resistance problems in breast carcinomas. Phytochemicals as adjuvants with chemotherapeutic drugs have greatly enhanced their therapeutic efficacy. This review focuses on the recently recognized molecular mechanisms underlying breast cancer chemoprevention with the use of phytochemicals such as curcumin, resveratrol, silibinin, genistein, epigallocatechin gallate, secoisolariciresinol, thymoquinone, kaempferol, quercetin, parthenolide, sulforaphane, ginsenosides, naringenin, isoliquiritigenin, luteolin, benzyl isothiocyanate, α-mangostin, 3,3'-diindolylmethane, pterostilbene, vinca alkaloids and apigenin.
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Affiliation(s)
- Muhammad Younas
- Department of Biotechnology, Quaid-i-Azam University Islamabad-45320 Pakistan +92-51-90644121 +92-51-90644121 +33-767-97-0619
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Plant Lignans Team, UPRES EA 1207, Université d'Orléans F 28000 Chartres France
| | | | - Bilal Haider Abbasi
- Department of Biotechnology, Quaid-i-Azam University Islamabad-45320 Pakistan +92-51-90644121 +92-51-90644121 +33-767-97-0619
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Plant Lignans Team, UPRES EA 1207, Université d'Orléans F 28000 Chartres France
- EA2106 Biomolecules et Biotechnologies Vegetales, Universite Francois-Rabelais de Tours Tours France
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24
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Adami GR, Tangney CC, Tang JL, Zhou Y, Ghaffari S, Naqib A, Sinha S, Green SJ, Schwartz JL. Effects of green tea on miRNA and microbiome of oral epithelium. Sci Rep 2018; 8:5873. [PMID: 29651001 PMCID: PMC5897334 DOI: 10.1038/s41598-018-22994-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/03/2018] [Indexed: 02/07/2023] Open
Abstract
Consumption of green tea (GT) extracts or purified catechins has shown the ability to prevent oral and other cancers and inhibit cancer progression in rodent models, but the evidence for this in humans is mixed. Working with humans, we sought to understand the source of variable responses to GT by examining its effects on oral epithelium. Lingual epithelial RNA and lingual and gingival microbiota were measured before and after 4 weeks of exposure in tobacco smokers, whom are at high risk of oral cancer. GT consumption had on average inconsistent effects on miRNA expression in the oral epithelium. Only analysis that examined paired miRNAs, showing changed and coordinated expression with GT exposure, provided evidence for a GT effect on miRNAs, identifying miRNAs co-expressed with two hubs, miR-181a-5p and 301a-3p. An examination of the microbiome on cancer prone lingual mucosa, in contrast, showed clear shifts in the relative abundance of Streptococcus and Staphylococcus, and other genera after GT exposure. These data support the idea that tea consumption can consistently change oral bacteria in humans, which may affect carcinogenesis, but argue that GT effects on oral epithelial miRNA expression in humans vary between individuals.
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Affiliation(s)
- Guy R Adami
- Department of Oral Medicine & Diagnostic Sciences, Center for Molecular Biology of Oral Diseases, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, USA.
| | - Christy C Tangney
- Department of Clinical Nutrition, College of Health Sciences, Rush University Medical Center, 1700 W Van Buren St. Suite 425, Chicago, IL, USA
| | - Jessica L Tang
- Department of Oral Medicine & Diagnostic Sciences, Center for Molecular Biology of Oral Diseases, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, USA
| | - Yalu Zhou
- Department of Oral Medicine & Diagnostic Sciences, Center for Molecular Biology of Oral Diseases, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, USA
| | - Saba Ghaffari
- Department of Computer Science and Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign, 2122 Siebel Center, 201N. Goodwin Ave, Urbana, IL, USA
| | - Ankur Naqib
- DNA Services Facility, Research Resources Center, University of Illinois at Chicago, Chicago, IL, USA
| | - Saurabh Sinha
- Department of Computer Science and Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign, 2122 Siebel Center, 201N. Goodwin Ave, Urbana, IL, USA
| | - Stefan J Green
- DNA Services Facility, Research Resources Center, University of Illinois at Chicago, Chicago, IL, USA
| | - Joel L Schwartz
- Department of Oral Medicine & Diagnostic Sciences, Center for Molecular Biology of Oral Diseases, College of Dentistry, University of Illinois at Chicago, 801 South Paulina Street, Chicago, IL, USA
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25
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Mauro L, Naimo GD, Gelsomino L, Malivindi R, Bruno L, Pellegrino M, Tarallo R, Memoli D, Weisz A, Panno ML, Andò S. Uncoupling effects of estrogen receptor α on LKB1/AMPK interaction upon adiponectin exposure in breast cancer. FASEB J 2018. [PMID: 29513571 DOI: 10.1096/fj.201701315r] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adipose tissue is a metabolic and endocrine organ that secretes bioactive molecules called adipocytokines. Among these, adiponectin has a crucial role in obesity-associated breast cancer. The key molecule of adiponectin signaling is AMPK, which is mainly activated by liver kinase B1 (LKB1). Here, we demonstrated that estrogen receptor-α (ERα)/LKB1 interaction may negatively interfere with the LKB1 capability to phosphorylate AMPK and inhibit its downstream signaling TSC2/mTOR/p70S6k. In adiponectin-treated MCF-7 cells, AMPK signaling was not working, resulting in its downstream target acetyl-CoA carboxylase (ACC) being still active. In contrast, in MDA-MB-231 cells, AMPK and ACC phosphorylation was enhanced by adiponectin, inhibiting lipogenesis and cell growth. Upon adiponectin, ERα signaling switched the energy balance of breast cancer cells toward a lipogenic phenotype. Therefore, adiponectin played an inhibitory role on ERα-negative cell growth and progression in vitro and in vivo. In contrast, low adiponectin levels, similar to those circulating in obese patients, acted on ERα-positive cells as a growth factor, stimulating proliferation. The latter effect was blunted in vivo by high adiponectin concentration. All this may have translational relevance, addressing how the handling of adiponectin, as a therapeutic tool in breast cancer treatment, needs to be carefully considered in ERα-positive obese patients, where circulating levels of this adipocytokine are relatively low. In other words, in ERα-positive breast cancer obese patients, higher adiponectin doses should be administered with respect to ERα-negative breast cancer, also opportunely combined with antiestrogen therapy. -Mauro, L., Naimo, G. D., Gelsomino, L., Malivindi, R., Bruno, L., Pellegrino, M., Tarallo, R., Memoli, D., Weisz, A., Panno, M. L., Andò, S. Uncoupling effects of estrogen receptor α on LKB1/AMPK interaction upon adiponectin exposure in breast cancer.
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Affiliation(s)
- Loredana Mauro
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
| | | | - Luca Gelsomino
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Rocco Malivindi
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Leonardo Bruno
- Department of Biology, Ecology, and Earth Sciences, University of Calabria, Rende, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Roberta Tarallo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery, and Dentistry, Scuola Medica Salernitana, Baronissi, Italy
| | - Domenico Memoli
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery, and Dentistry, Scuola Medica Salernitana, Baronissi, Italy
| | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery, and Dentistry, Scuola Medica Salernitana, Baronissi, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, Rende, Italy
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Lin YC, Liu LC, Ho CT, Hung CM, Way TD. Luteolin inhibits ER-α expression through ILK inhibition is regulated by a pathway involving Twist and YB-1. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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27
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De Amicis F, Guido C, Santoro M, Giordano F, Donà A, Rizza P, Pellegrino M, Perrotta I, Bonofiglio D, Sisci D, Panno ML, Tramontano D, Aquila S, Andò S. Ligand activated progesterone receptor B drives autophagy-senescence transition through a Beclin-1/Bcl-2 dependent mechanism in human breast cancer cells. Oncotarget 2018; 7:57955-57969. [PMID: 27462784 PMCID: PMC5295403 DOI: 10.18632/oncotarget.10799] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 07/09/2016] [Indexed: 12/21/2022] Open
Abstract
Loss of progesterone-receptors (PR) expression is associated with breast cancer progression. Herein we provide evidence that OHPg/PR-B through Beclin-1 evoke autophagy-senescence transition, in breast cancer cells. Specifically, OHPg increases Beclin-1 expression through a transcriptional mechanism due to the occupancy of Beclin-1 promoter by PR-B, together with the transcriptional coactivator SRC-2. This complex binds at a canonical half progesterone responsive element, which is fundamental for OHPg effects, as shown by site-directed mutagenesis. Beside, OHPg via non-genomic action rapidly activates JNK, which phosphorylates Bcl-2, producing the functional release from Beclin-1 interaction. This is not linked to an efficient autophagic flux, since p62 levels, marker of degradation via lysosomes, were not reduced after sustained OHPg stimulus. Instead, the cell cycle inhibitor p27 was induced, together with an irreversible G1 arrest, hallmark of cellular senescence. Specifically the increase of senescence-associated β-galactosidase activity was blocked by Bcl-2 siRNA but also by Beclin-1 siRNA. Collectively these findings support the importance of PR-B expression in breast cancer cells, thus targeting PR-B may be a useful strategy to provide additional approaches to existing therapies for breast cancer patients.
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Affiliation(s)
- Francesca De Amicis
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Carmela Guido
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Marta Santoro
- Centro Sanitario, University of Calabria, Rende, Italy
| | - Francesca Giordano
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Ada Donà
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Pietro Rizza
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | | | - Daniela Bonofiglio
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Diego Sisci
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Donatella Tramontano
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Saveria Aquila
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Sebastiano Andò
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
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Rajagopal C, Lankadasari MB, Aranjani JM, Harikumar KB. Targeting oncogenic transcription factors by polyphenols: A novel approach for cancer therapy. Pharmacol Res 2018; 130:273-291. [PMID: 29305909 DOI: 10.1016/j.phrs.2017.12.034] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/30/2017] [Accepted: 12/31/2017] [Indexed: 02/06/2023]
Abstract
Inflammation is one of the major causative factor of cancer and chronic inflammation is involved in all the major steps of cancer initiation, progression metastasis and drug resistance. The molecular mechanism of inflammation driven cancer is the complex interplay between oncogenic and tumor suppressive transcription factors which include FOXM1, NF-kB, STAT3, Wnt/β- Catenin, HIF-1α, NRF2, androgen and estrogen receptors. Several products derived from natural sources modulate the expression and activity of multiple transcription factors in various tumor models as evident from studies conducted in cell lines, pre-clinical models and clinical samples. Further combination of these natural products along with currently approved cancer therapies added an additional advantage and they considered as promising targets for prevention and treatment of inflammation and cancer. In this review we discuss the application of multi-targeting natural products by analyzing the literature and future directions for their plausible applications in drug discovery.
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Affiliation(s)
- Chitra Rajagopal
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, Kerala, India
| | - Manendra Babu Lankadasari
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, Kerala, India
| | - Jesil Mathew Aranjani
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - K B Harikumar
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, Kerala, India.
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29
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Losada-Echeberría M, Herranz-López M, Micol V, Barrajón-Catalán E. Polyphenols as Promising Drugs against Main Breast Cancer Signatures. Antioxidants (Basel) 2017; 6:E88. [PMID: 29112149 PMCID: PMC5745498 DOI: 10.3390/antiox6040088] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 10/30/2017] [Accepted: 11/03/2017] [Indexed: 12/19/2022] Open
Abstract
Breast cancer is one of the most common neoplasms worldwide, and in spite of clinical and pharmacological advances, it is still a clinical problem, causing morbidity and mortality. On the one hand, breast cancer shares with other neoplasms some molecular signatures such as an imbalanced redox state, cell cycle alterations, increased proliferation and an inflammatory status. On the other hand, breast cancer shows differential molecular subtypes that determine its prognosis and treatment. These are characterized mainly by hormone receptors especially estrogen receptors (ERs) and epidermal growth factor receptor 2 (HER2). Tumors with none of these receptors are classified as triple negative breast cancer (TNBC) and are associated with a worse prognosis. The success of treatments partially depends on their specificity and the adequate molecular classification of tumors. New advances in anticancer drug discovery using natural compounds have been made in the last few decades, and polyphenols have emerged as promising molecules. They may act on various molecular targets because of their promiscuous behavior, presenting several physiological effects, some of which confer antitumor activity. This review analyzes the accumulated evidence of the antitumor effects of plant polyphenols on breast cancer, with special attention to their activity on ERs and HER2 targets and also covering different aspects such as redox balance, uncontrolled proliferation and chronic inflammation.
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Affiliation(s)
- María Losada-Echeberría
- Institute of Molecular and Cell Biology (IBMC), Miguel Hernández University (UMH), Avda. Universidad s/n, Elche 03202, Spain.
| | - María Herranz-López
- Institute of Molecular and Cell Biology (IBMC), Miguel Hernández University (UMH), Avda. Universidad s/n, Elche 03202, Spain.
| | - Vicente Micol
- Institute of Molecular and Cell Biology (IBMC), Miguel Hernández University (UMH), Avda. Universidad s/n, Elche 03202, Spain.
- CIBER, Fisiopatología de la Obesidad y la Nutrición, CIBERobn, Instituto de Salud Carlos III (CB12/03/30038), Palma de Mallorca 07122, Spain.
| | - Enrique Barrajón-Catalán
- Institute of Molecular and Cell Biology (IBMC), Miguel Hernández University (UMH), Avda. Universidad s/n, Elche 03202, Spain.
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30
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Sharif R, Hjortdal J, Sejersen H, Frank G, Karamichos D. Human in vitro Model Reveals the Effects of Collagen Cross-linking on Keratoconus Pathogenesis. Sci Rep 2017; 7:12517. [PMID: 28970517 PMCID: PMC5624875 DOI: 10.1038/s41598-017-12598-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/06/2017] [Indexed: 12/11/2022] Open
Abstract
Keratoconus (KC) is a corneal thinning disorder that leads to severe vision impairment As opposed to corneal transplantation; corneal collagen crosslinking (CXL) is a relatively non-invasive procedure that leads to an increase in corneal stiffness. In order to evaluate the effect of CXL on human corneal stromal cells in vitro, we developed a 3-D in vitro CXL model, using primary Human corneal fibroblasts (HCFs) from healthy patients and Human Keratoconus fibroblasts (HKCs) from KC patients. Cells were plated on transwell polycarbonate membranes and stimulated by a stable vitamin C. CXL was performed using a mixed riboflavin 0.1% PBS solution followed by UVA irradiation. Our data revealed no significant apoptosis in either HCFs or HKCs following CXL. However, corneal fibrosis markers, Collagen III and α-smooth muscle actin, were significantly downregulated in CXL HKCs. Furthermore, a significant downregulation was seen in SMAD3, SMAD7, and phosphorylated SMADs -2 and -3 expression in CXL HKCs, contrary to a significant upregulation in both SMAD2 and Lysyl oxidase expression, compared to HCFs. Our novel 3-D in vitro model can be utilized to determine the cellular and molecular effects on the human corneal stroma post CXL, and promises to establish optimized treatment modalities in patients with KC.
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Affiliation(s)
- Rabab Sharif
- Department of Cell Biology, University of Oklahoma Health science Center, Oklahoma City, Oklahoma, USA
| | - Jesper Hjortdal
- Department of Ophthalmology, Aarhus University Hospital, Aarhus C, Denmark
| | - Henrik Sejersen
- Department of Ophthalmology, Aarhus University Hospital, Aarhus C, Denmark
| | - Garett Frank
- Department of Ophthalmology/Dean McGee Eye Institute, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
| | - Dimitrios Karamichos
- Department of Cell Biology, University of Oklahoma Health science Center, Oklahoma City, Oklahoma, USA.
- Department of Ophthalmology/Dean McGee Eye Institute, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA.
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31
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Sinha D, Biswas J, Nabavi SM, Bishayee A. Tea phytochemicals for breast cancer prevention and intervention: From bench to bedside and beyond. Semin Cancer Biol 2017; 46:33-54. [DOI: 10.1016/j.semcancer.2017.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/25/2017] [Accepted: 04/01/2017] [Indexed: 02/06/2023]
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Gan RY, Li HB, Sui ZQ, Corke H. Absorption, metabolism, anti-cancer effect and molecular targets of epigallocatechin gallate (EGCG): An updated review. Crit Rev Food Sci Nutr 2017. [DOI: 10.1080/10408398.2016.1231168 pmid: 27645804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Affiliation(s)
- Ren-You Gan
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- School of Biological Sciences, The University of Hong Kong, Hong Kong
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Zhong-Quan Sui
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Harold Corke
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- School of Biological Sciences, The University of Hong Kong, Hong Kong
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Gan RY, Li HB, Sui ZQ, Corke H. Absorption, metabolism, anti-cancer effect and molecular targets of epigallocatechin gallate (EGCG): An updated review. Crit Rev Food Sci Nutr 2017; 58:924-941. [PMID: 27645804 DOI: 10.1080/10408398.2016.1231168] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Green tea is one of the most popular beverages in the world, especially in Asian countries. Consumption of green tea has been demonstrated to possess many health benefits, which mainly attributed to the main bioactive compound epigallocatechin gallate (EGCG), a flavone-3-ol polyphenol, in green tea. EGCG is mainly absorbed in the intestine, and gut microbiota play a critical role in its metabolism prior to absorption. EGCG exhibits versatile bioactivities, with its anti-cancer effect most attracting due to the cancer preventive effect of green tea consumption, and a great number of studies intensively investigated its anti-cancer effect. In this review, we therefore, first stated the absorption and metabolism process of EGCG, and then summarized its anti-cancer effect in vitro and in vivo, including its manifold anti-cancer actions and mechanisms, especially its anti-cancer stem cell effect, and next highlighted its various molecular targets involved in cancer inhibition. Finally, the anti-cancer effect of EGCG analogs and nanoparticles, as well as the potential cancer promoting effect of EGCG were also discussed. Understanding of the absorption, metabolism, anti-cancer effect and molecular targets of EGCG can be of importance to better utilize it as a chemopreventive and chemotherapeutic agent.
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Affiliation(s)
- Ren-You Gan
- a Department of Food Science and Engineering, School of Agriculture and Biology , Shanghai Jiao Tong University , Shanghai , China.,b School of Biological Sciences , The University of Hong Kong , Hong Kong
| | - Hua-Bin Li
- c Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Zhong-Quan Sui
- a Department of Food Science and Engineering, School of Agriculture and Biology , Shanghai Jiao Tong University , Shanghai , China
| | - Harold Corke
- a Department of Food Science and Engineering, School of Agriculture and Biology , Shanghai Jiao Tong University , Shanghai , China.,b School of Biological Sciences , The University of Hong Kong , Hong Kong
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Hallman K, Aleck K, Quigley M, Dwyer B, Lloyd V, Szmyd M, Dinda S. The regulation of steroid receptors by epigallocatechin-3-gallate in breast cancer cells. BREAST CANCER-TARGETS AND THERAPY 2017; 9:365-373. [PMID: 28579831 PMCID: PMC5447698 DOI: 10.2147/bctt.s131334] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
It has been reported that phytoestrogen epigallocatechin gallate (EGCG) suppresses cancer cell proliferation and may have antitumor properties. In this study, we analyzed the effects of EGCG on estrogen receptor α (ERα) and progesterone receptor in hormone-dependent T-47D breast cancer cells. Western blot analysis revealed EGCG induced a concentration-dependent decrease in ERα protein levels, with a 56% reduction occurring with 60 µM EGCG when compared to controls. Downregulation of ERα protein levels was observed after 24-hour co-treatment of T-47D cells with 60 µM EGCG and 10 nM 17β-estradiol (E2). The proliferative effect of E2 on cell viability was reversed when treated in combination with EGCG. In contrast, the combination of EGCG with the pure ER antagonist, ICI 182, 780, showed no further reduction in cell number as only 5% of the cells were viable after 6 days of treatment. These studies may provide further understanding of the interactions among flavonoids and steroid receptors in breast cancer cells.
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Affiliation(s)
- Kelly Hallman
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Katie Aleck
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Meghan Quigley
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Brigitte Dwyer
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Victoria Lloyd
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Monica Szmyd
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Sumi Dinda
- Biomedical Diagnostic and Therapeutic Sciences, School of Health Sciences, Center for Biomedical Research, Oakland University, Rochester, MI, USA
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Sayeed MA, Bracci M, Lazzarini R, Tomasetti M, Amati M, Lucarini G, Di Primio R, Santarelli L. Use of potential dietary phytochemicals to target miRNA: Promising option for breast cancer prevention and treatment? J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.11.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Natural Polyphenols for Prevention and Treatment of Cancer. Nutrients 2016; 8:nu8080515. [PMID: 27556486 PMCID: PMC4997428 DOI: 10.3390/nu8080515] [Citation(s) in RCA: 384] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/12/2016] [Accepted: 08/12/2016] [Indexed: 02/06/2023] Open
Abstract
There is much epidemiological evidence that a diet rich in fruits and vegetables could lower the risk of certain cancers. The effect has been attributed, in part, to natural polyphenols. Besides, numerous studies have demonstrated that natural polyphenols could be used for the prevention and treatment of cancer. Potential mechanisms included antioxidant, anti-inflammation as well as the modulation of multiple molecular events involved in carcinogenesis. The current review summarized the anticancer efficacy of major polyphenol classes (flavonoids, phenolic acids, lignans and stilbenes) and discussed the potential mechanisms of action, which were based on epidemiological, in vitro, in vivo and clinical studies within the past five years.
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Al-Howail HA, Hakami HA, Al-Otaibi B, Al-Mazrou A, Daghestani MH, Al-Jammaz I, Al-Khalaf HH, Aboussekhra A. PAC down-regulates estrogen receptor alpha and suppresses epithelial-to-mesenchymal transition in breast cancer cells. BMC Cancer 2016; 16:540. [PMID: 27465411 PMCID: PMC4964287 DOI: 10.1186/s12885-016-2583-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 07/19/2016] [Indexed: 12/31/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC) is an aggressive histological subtype with limited treatment options and very poor prognosis following progression after standard chemotherapeutic regimens. Therefore, novel molecules and therapeutic options are urgently needed for this category of patients. Recently, we have identified PAC as a curcumin analogue with potent anti-cancer features. Methods HPLC was used to evaluate the stability of PAC and curcumin in PBS and also in circulating blood. Cytotoxicity/apoptosis was assessed in different breast cancer cell lines using propidium iodide/annexinV associated with flow cytometry. Furthermore, immunoblotting analysis determined the effects of PAC on different oncogenic proteins and pathways. Additionally, the real time xCELLigence RTCA technology was applied to investigate the effect of PAC on the cellular proliferation, migration and invasion capacities. Results PAC is more stable than curcumin in PBS and in circulating blood. Furthermore, we have shown differential sensitivity of estrogen receptor-alfa positive (ERα+) and estrogen receptor alfa negative (ERα−) breast cancer cells to PAC, which down-regulated ERα in both cell types. This led to complete disappearance of ERα in ERα− cells, which express very low level of this receptor. Interestingly, specific down-regulation of ERα in receptor positive cells increased the apoptotic response of these cells to PAC, confirming that ERα inhibits PAC-dependent induction of apoptosis, which could be mediated through ERα down-regulation. Additionally, PAC inhibited the proliferation and suppressed the epithelial-to-mesenchymal transition process in breast cancer cells, with higher efficiency on the TNBC subtype. This effect was also observed in vivo on tumor xenografts. Additionally, PAC suppressed the expression/secretion of 2 important cytokines IL-6 and MCP-1, and consequently inhibited the paracrine procarcinogenic effects of breast cancer cells on breast stromal fibroblasts. Conclusion These results indicate that PAC could be considered as important candidate for future therapeutic options against the devastating TNBC subtype.
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Affiliation(s)
- Huda A Al-Howail
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, MBC # 03, PO BOX 3354, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Hana A Hakami
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, MBC # 03, PO BOX 3354, Riyadh, 11211, Kingdom of Saudi Arabia.,Department of Zoology, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia.,Present Address: McGill University Health Center, Montreal, QC, Canada
| | - Basem Al-Otaibi
- Department of Cyclotron and Radiopharmaceuticals, King Faisal Specialist Hospital and Research Center, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Amer Al-Mazrou
- Stem Cell Therapy Program, King Faisal Specialist Hospital and Research Center, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Maha H Daghestani
- Department of Zoology, College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Ibrahim Al-Jammaz
- Department of Cyclotron and Radiopharmaceuticals, King Faisal Specialist Hospital and Research Center, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Huda H Al-Khalaf
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, MBC # 03, PO BOX 3354, Riyadh, 11211, Kingdom of Saudi Arabia.,The National Center for Genomics Research, King Abdulaziz City for Science and Technology, Riyadh, 11211, Kingdom of Saudi Arabia
| | - Abdelilah Aboussekhra
- Department of Molecular Oncology, King Faisal Specialist Hospital and Research Center, MBC # 03, PO BOX 3354, Riyadh, 11211, Kingdom of Saudi Arabia.
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Chani B, Puri V, Chander Sobti R, Puri S. Epigallocatechin Gallate Inhibits Mouse Mesenchymal Stem Cell Differentiation to Adipogenic Lineage. J Stem Cells Regen Med 2016. [PMID: 27397998 PMCID: PMC4929894 DOI: 10.46582/jsrm.1201004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Epigallocatechin gallate (EGCG) is a major component of green tea polyphenols having a potent anti-oxidant potential. Besides inhibiting the growth of many cancer cell types and inducing proliferation and differentiation in keratinocytes, it has been shown to promote reduction of body fat. The fact that mesenchymal stem cells (MSCs) have ability to self-renew and differentiate into the cells of mesodermal lineages, such as fat and bone, it is, thus, possible that EGCG may directly be involved in affecting fat metabolism through its effect on mesenchymal stem cells. Hence, with this aim, the present study was designed to determine the effect of EGCG on mouse mesenchymal stem cells, C3H10T1/2 cells differentiation into adipocytes. To understand this process, the cells were incubated with varying concentrations of EGCG (1 μM, 5 μM, 10 μM, 50 μM) in the presence and /or absence of adipogenic medium for 9 days. The results demonstrated that, EGCG inhibited the cells proliferation, migration and also prevented their differentiation to adipogenic lineage. These effects were analyzed through the inhibition of wound healing activity, reduction in Oil red O stained cells, together with decrease in the expression of Adipisin gene following EGCG treatment. These observations thus demonstrated anti-adipogenic effect of EGCG with a possibility of its role in the therapeutic intervention of obesity.
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Zink A, Traidl-Hoffmann C. Grüner Tee in der Dermatologie - Mythen und Fakten. J Dtsch Dermatol Ges 2015. [DOI: 10.1111/ddg.20_12737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander Zink
- Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein; Technische Universität München; München Deutschland
- Institut für Umweltmedizin; UNIKA-T, Technische Universität München; München Deutschland
| | - Claudia Traidl-Hoffmann
- Institut für Umweltmedizin; UNIKA-T, Technische Universität München; München Deutschland
- CK-CARE; Christine Kühne Center for Allergy Research and Education; Davos Schweiz
- Ambulanz für Umweltmedizin; Klinikum Augsburg; Augsburg Deutschland
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Abstract
Green tea consumption has a long tradition in Asian countries--especially China. The epidemiologically and experimentally observed anticarcinogenic and antiinflammatory effects of green tea have led to the implementation of green tea extracts in multiple therapeutic applications - both in dermatological and cosmeceutical preparations. The most abundant evidence exists for the anticarcinogenic and chemopreventive effect of green tea or its major constituent epigallocatechin-3-gallate. Almost equally evident is the effect in infectious diseases such as cutaneous viral infections. For external genital warts, a topical ointment with green tea extracts was licensed in the USA in 2010, and recently also in Europe. Experimental evidence pinpointing the block of central signal transduction factors in inflammatory mechanisms has led to the evaluation of catechins in inflammatory disorders such as atopic dermatitis. The belief of green tea as a "wonder weapon" against diseases dates back thousands of years. According to a Chinese legend, ancient Emperor Shen Nung noted a delightful aroma after some leaves of a nearby tree had fallen into boiling water. He immediately proclaimed the new "drink" as "heaven-sent", starting the belief - persisting until today - of green tea as a medication from nature against many different diseases. This review summarizes biological effects and clinical implications of green tea.
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Affiliation(s)
- Alexander Zink
- Department of Dermatology and Allergy Biederstein, Technische Universität München, Munich, Germany.,Institute for environmental medicine, UNIKA-T, Technischen Universität München, Munich, Germany
| | - Claudia Traidl-Hoffmann
- Institute for environmental medicine, UNIKA-T, Technischen Universität München, Munich, Germany.,CK-CARE, Christine Kühne Center for Allergy Research and Education, Davos, Switzerland.,Outpatient Clinic for environmental medicine, Klinikum Augsburg, Augsburg, Germany
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Expression profiling of genes modulated by estrogen, EGCG or both in MCF-7 breast cancer cells. GENOMICS DATA 2015; 5:210-2. [PMID: 26484257 PMCID: PMC4583662 DOI: 10.1016/j.gdata.2015.05.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 05/24/2015] [Indexed: 01/20/2023]
Abstract
(−)-Epigallocatechin-3-gallate (EGCG) is one of the most potent and the most studied green tea catechin. Reports on mechanisms of EGCG action and its cellular targets are plenty. Compelling evidences in the literature in favor of ER being one of its targets suggest that EGCG may have a significant impact on estrogen regulated gene expression. Despite the possible implications on breast cancer chemoprevention or therapy, this aspect of EGCG action has not been adequately investigated. In order to address this issue, we have obtained gene expression profiles of MCF-7 breast cancer cells treated with ethanol (vehicle control) and those treated with estrogen, EGCG or both, using microarrays. Here, we have presented in detail the design and execution of the microarray experiment, quality control checks and analysis of microarray data. The utility and importance of the data generated in this work have been discussed in the context of the background literature. Our data is available in the Gene Expression Omnibus (GEO) database with the identifier GSE56245.
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Yiannakopoulou EC. Interaction of green tea catechins with breast cancer endocrine treatment: a systematic review. Pharmacology 2014; 94:245-8. [PMID: 25471334 DOI: 10.1159/000369170] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 10/16/2014] [Indexed: 11/19/2022]
Abstract
Recent data have shown strong chemopreventive and possibly cancer chemotherapeutic effects of green tea polyphenols and EGCG against breast cancer. This systematic review aims to synthesize data on the possible interaction of green tea catechins with breast cancer endocrine treatment. Electronic databases were searched with the appropriate search terms. Experimental trials suggest a synergistic interaction of green tea catechins with tamoxifen or raloxifene in the treatment of estrogen receptor-positive and estrogen receptor-negative breast cancer through estrogen receptor-dependent and -independent mechanisms. No evidence of an interaction of green tea catechins with aromatase inhibitors or fulvestrant has been reported. As green tea catechins are natural compounds with a rather favorable safety profile, the strategy of co-administrating green tea catechins with tamoxifen seems to be a rational approach in chemoprevention, adjuvant and metastatic breast cancer treatment that needs further investigation.
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Affiliation(s)
- Eugenia C Yiannakopoulou
- Department of Medical Laboratories, Faculty of Health and Caring Professions, Technological Educational Institute of Athens, Athens, Greece
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De Amicis F, Guido C, Santoro M, Lanzino M, Panza S, Avena P, Panno ML, Perrotta I, Aquila S, Andò S. A novel functional interplay between Progesterone Receptor-B and PTEN, via AKT, modulates autophagy in breast cancer cells. J Cell Mol Med 2014; 18:2252-65. [PMID: 25216078 PMCID: PMC4224558 DOI: 10.1111/jcmm.12363] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 06/02/2014] [Indexed: 12/20/2022] Open
Abstract
The tumour suppressor activity of the phosphatase and tensin homologue on chromosome 10 (PTEN) is subject of intense investigative efforts, although limited information on its regulation in breast cancer is available. Herein, we report that, in breast cancer cells, progesterone (OHPg), through its cognate receptor PR-B, positively modulates PTEN expression by inducing its mRNA and protein levels, and increasing PTEN-promoter activity. The OHPg-dependent up-regulation of PTEN gene activity requires binding of the PR-B to an Sp1-rich region within the PTEN gene promoter. Indeed, ChIP and EMSA analyses showed that OHPg treatment induced the occupancy of PTEN promoter by PR and Sp1 together with transcriptional coactivators such as SRC1 and CBP. PR-B isoform knockdown abolished the complex formation indicating its specific involvement. The OHPg/PR-B dependent induction of PTEN causes the down-regulation of PI3K/AKT signal, switching on the autophagy process through an enhanced expression of UVRAG and leading to a reduced cell survival. Altogether these findings highlight a novel functional connection between OHPg/PR-B and tumour suppressor pathways in breast cancer.
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Affiliation(s)
- Francesca De Amicis
- Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy; Department of Pharmacy, Health Science and Nutrition, University of Calabria, Arcavacata di Rende (CS), Italy
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Li MJ, Yin YC, Wang J, Jiang YF. Green tea compounds in breast cancer prevention and treatment. World J Clin Oncol 2014; 5:520-528. [PMID: 25114865 PMCID: PMC4127621 DOI: 10.5306/wjco.v5.i3.520] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 02/12/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is the most common cancer among women. In recent years, many in vitro and in vivo studies indicate that green tea possesses anti-cancer effects. The epidemiological studies, however, have produced inconclusive results in humans. Likewise, results from animal models about the preventive or therapeutic effects of green tea components are inconclusive. The mechanisms by which green tea intake may influence the risk of breast cancer in humans remain elusive mechanisms by which green tea intake may influence. Here, we review recent studies of green tea polyphenols and their applications in the prevention and treatment of breast cancer. Furthermore, we discuss the effect of green tea components on breast cancer by reviewing epidemiological studies, animal model studies and clinical trials. At last, we discuss the mechanisms by which green tea components suppress the development and recurrence of breast cancer. A better understanding of the mechanisms will improve the utilization of green tea in breast cancer prevention and therapy and pave the way to novel prevention and treatment strategies for breast cancer.
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Aquila S, De Amicis F. Steroid receptors and their ligands: effects on male gamete functions. Exp Cell Res 2014; 328:303-13. [PMID: 25062984 DOI: 10.1016/j.yexcr.2014.07.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 05/29/2014] [Accepted: 07/14/2014] [Indexed: 02/07/2023]
Abstract
In recent years a new picture of human sperm biology is emerging. It is now widely recognized that sperm contain nuclear encoded mRNA, mitochondrial encoded RNA and different transcription factors including steroid receptors, while in the past sperm were considered incapable of transcription and translation. One of the main targets of steroid hormones and their receptors is reproductive function. Expression studies on Progesterone Receptor, estrogen receptor, androgen receptor and their specific ligands, demonstrate the presence of these systems in mature spermatozoa as surface but also as nuclear conventional receptors, suggesting that both systemic and local steroid hormones, through sperm receptors, may influence male reproduction. However, the relationship between the signaling events modulated by steroid hormones and sperm fertilization potential as well as the possible involvement of the specific receptors are still controversial issues. The main line of this review highlights the current research in human sperm biology examining new molecular systems of response to the hormones as well as specific regulatory pathways controlling sperm cell fate and biological functions. Most significant studies regarding the identification of steroid receptors are reported and the mechanistic insights relative to signaling pathways, together with the change in sperm metabolism energy influenced by steroid hormones are discussed.The reviewed evidences suggest important effects of Progesterone, Estrogen and Testosterone and their receptors on spermatozoa and implicate the involvement of both systemic and local steroid action in the regulation of male fertility potential.
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Affiliation(s)
- Saveria Aquila
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Via P Bucci cubo 34 B, Rende 87036, CS, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Via P Bucci cubo 34 B, Rende 87036, CS, Italy.
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47
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Zeng L, Holly JMP, Perks CM. Effects of physiological levels of the green tea extract epigallocatechin-3-gallate on breast cancer cells. Front Endocrinol (Lausanne) 2014; 5:61. [PMID: 24847310 PMCID: PMC4019852 DOI: 10.3389/fendo.2014.00061] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 04/13/2014] [Indexed: 11/22/2022] Open
Abstract
Physiological concentrations of the green tea extract epigallocatechin-3-gallate (EGCG) caused growth inhibition in estrogen receptor α (ERα)-positive MCF7 cells that was associated with down-regulation of the ERα and reduced insulin-like growth factor binding protein-2 abundance and increased protein abundance of the tumor suppressor genes p53/p21. In contrast to MCF7 cells that have wt p53, EGCG alone did not change cell proliferation or death significantly in another ERα-positive cell line T47D that possesses mutant p53. EGCG increased ERα protein levels and as a consequence, the cells responded significantly better to an ERα antagonist tamoxifen (TAM) in the presence of EGCG. EGCG significantly increased cell death in an ERα-negative cell line, MDA-MB-231 that also possesses mutant p53. EGCG significantly increased the ERα and insulin-like growth factor-I receptor levels and thereby enhanced the sensitivities of the cells to TAM and a blocking antibody targeting the insulin-like growth factor-1 receptor (αIR3). In contrast to MCF7, T47D and MDA-MB-231 breast cancer cells that exhibited significant changes in key molecules involved in breast growth and survival upon treatment with physiological levels of EGCG, the growth, survival, and levels of these proteins in non-malignant breast epithelial cells, MCF10A cells, were not affected.
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Affiliation(s)
- Li Zeng
- IGFs and Metabolic Endocrinology Group, School of Clinical Sciences, Southmead Hospital, University of Bristol, Bristol, UK
| | - Jeff M. P. Holly
- IGFs and Metabolic Endocrinology Group, School of Clinical Sciences, Southmead Hospital, University of Bristol, Bristol, UK
| | - Claire M. Perks
- IGFs and Metabolic Endocrinology Group, School of Clinical Sciences, Southmead Hospital, University of Bristol, Bristol, UK
- *Correspondence: Claire M. Perks, IGFs and Metabolic Endocrinology Group, School of Clinical Sciences, Southmead Hospital, University of Bristol, Learning and Research Building, 2nd Floor, Bristol BS10 5NB, UK e-mail:
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Mauro L, Pellegrino M, De Amicis F, Ricchio E, Giordano F, Rizza P, Catalano S, Bonofiglio D, Sisci D, Panno ML, Andò S. Evidences that estrogen receptor α interferes with adiponectin effects on breast cancer cell growth. Cell Cycle 2013; 13:553-64. [PMID: 24335340 DOI: 10.4161/cc.27455] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Adiponectin, the most abundant protein secreted by adipose tissue, exhibits insulin-sensitizing, anti-inflammatory, antiatherogenic, and antiproliferative properties. In addition, it appears to play an important role also in the development and progression of several obesity-related malignancies, including breast cancer. Here, we demonstrated that adiponectin induces a dichotomic effect on breast cancer growth. Indeed, it stimulates growth in ERα+ MCF-7 cells while inhibiting proliferation of ERα- MDA-MB-231 cells. Notably, only in MCF-7 cells adiponectin exposure exerts a rapid activation of MAPK phosphorylation, which is markedly reduced when knockdown of the ERα gene occurred. In addition, adiponectin induces rapid IGF-IR phosphorylation in MCF-7 cells, and the use of ERα siRNA prevents this effect. Moreover, MAPK activation induced by adiponectin was reversed by IGF-IR siRNA. Coimmunoprecipitation studies show the existence of a multiprotein complex involving AdipoR1, APPL1, ERα, IGF-IR, and c-Src that is responsible for MAPK signaling activation in ERα+ positive breast cancer cells. It is well known that in addition to the rapid effects through non-genomic mechanisms, ERα also mediates nuclear genomic actions. In this concern, we demonstrated that adiponectin is able to transactivate ERα in MCF-7 cells. We showed the classical features of ERα transactivation: nuclear localization, downregulation of mRNA and protein levels, and upregulation of estrogen-dependent genes. Thus, our study clarifies the molecular mechanism through which adiponectin modulates breast cancer cell growth, providing evidences on the cell-type dependency of adiponectin action in relationship to ERα status.
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Affiliation(s)
- Loredana Mauro
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Emilia Ricchio
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Francesca Giordano
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Pietro Rizza
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Diego Sisci
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
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Hahm ER, Lee J, Singh SV. Role of mitogen-activated protein kinases and Mcl-1 in apoptosis induction by withaferin A in human breast cancer cells. Mol Carcinog 2013; 53:907-16. [PMID: 24019090 DOI: 10.1002/mc.22050] [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] [Received: 01/29/2013] [Revised: 04/24/2013] [Accepted: 05/03/2013] [Indexed: 12/13/2022]
Abstract
Withaferin A (WA), a bioactive constituent of Ayurvedic medicine plant Withania somnifera, is a potent apoptosis inducer in cancer cells but the mechanism of cell death induction is not fully characterized. The present study was undertaken to determine the role of mitogen-activated protein kinases (MAPK), including c-jun NH2 -terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and p38 MAPK, and anti-apoptotic protein myeloid cell leukemia-1 (Mcl-1) in regulation of WA-induced apoptosis using human breast cancer cells. Exposure of MCF-7 (estrogen responsive) and SUM159 (triple negative) human breast cancer cells to WA resulted in increased phosphorylation of ERK, JNK, and p38 MAPK, but these effects were relatively more pronounced in the former cell line than in SUM159. Overexpression of manganese-superoxide dismutase conferred partial protection against WA-mediated hyperphosphorylation of ERK, but not JNK or p38 MAPK. Cell death resulting from WA treatment in MCF-7 cells was significantly augmented by pharmacological inhibition of ERK and p38 MAPK. Interestingly, the WA-induced apoptosis in MCF-7 cells was partially but significantly blocked in the presence of a JNK-specific inhibitor. Pharmacological inhibition of ERK or JNK had no effect on WA-induced apoptosis in SUM159 cells. The WA-treated cells exhibited induction of long and short forms of Mcl-1. RNA interference of Mcl-1 alone triggered apoptosis. Furthermore, the WA-induced cell death in MCF-7 cells was modestly but significantly augmented by knockdown of the Mcl-1 protein. These observations indicate that: MAPK have cell line-specific role in cell death by WA, and Mcl-1 induction confers modest protection against WA-induced apoptosis.
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Affiliation(s)
- Eun-Ryeong Hahm
- Department of Pharmacology and Chemical Biology, and University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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50
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Savini I, Catani MV, Evangelista D, Gasperi V, Avigliano L. Obesity-associated oxidative stress: strategies finalized to improve redox state. Int J Mol Sci 2013; 14:10497-538. [PMID: 23698776 PMCID: PMC3676851 DOI: 10.3390/ijms140510497] [Citation(s) in RCA: 320] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 04/18/2013] [Accepted: 05/06/2013] [Indexed: 12/14/2022] Open
Abstract
Obesity represents a major risk factor for a plethora of severe diseases, including diabetes, cardiovascular disease, non-alcoholic fatty liver disease, and cancer. It is often accompanied by an increased risk of mortality and, in the case of non-fatal health problems, the quality of life is impaired because of associated conditions, including sleep apnea, respiratory problems, osteoarthritis, and infertility. Recent evidence suggests that oxidative stress may be the mechanistic link between obesity and related complications. In obese patients, antioxidant defenses are lower than normal weight counterparts and their levels inversely correlate with central adiposity; obesity is also characterized by enhanced levels of reactive oxygen or nitrogen species. Inadequacy of antioxidant defenses probably relies on different factors: obese individuals may have a lower intake of antioxidant- and phytochemical-rich foods, such as fruits, vegetables, and legumes; otherwise, consumption of antioxidant nutrients is normal, but obese individuals may have an increased utilization of these molecules, likewise to that reported in diabetic patients and smokers. Also inadequate physical activity may account for a decreased antioxidant state. In this review, we describe current concepts in the meaning of obesity as a state of chronic oxidative stress and the potential interventions to improve redox balance.
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Affiliation(s)
- Isabella Savini
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.
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