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Leal EC, Emanuelli T, Santos D, Moura J, Catarina Rg Fonseca A, Burgeiro A, Carvalho E. Dysregulation of endoplasmic reticulum stress response in skin wounds in a streptozotocin-induced diabetes mouse model. J Mol Endocrinol 2023; 70:e220122. [PMID: 36735276 DOI: 10.1530/jme-22-0122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/02/2023] [Indexed: 02/04/2023]
Abstract
Dysfunction in key cellular organelles has been linked to diabetic complications. This study intended to investigate the alterations in the unfolded protein response (UPR), autophagy, and mitochondrial function, which are part of the endoplasmic reticulum (ER) stress response, in wound healing (WH) under diabetes conditions. WH mouse models were used to evaluate the UPR, autophagy, mitochondrial fusion, fission, and biogenesis as well as mitophagy in the skin of control and diabetic mice at baseline and 10 days after wounding. The autophagic flux in response to high-glucose conditions was also evaluated in keratinocyte and fibroblast cell cultures. WH was impaired in the diabetic mouse model, and we found that the UPR and autophagy pathways were activated in skin wounds of control mice and in the non-wounded skin of diabetic mice. Moreover, high-glucose conditions induced autophagy in the keratinocyte and fibroblast cell cultures. However, mitophagy did not change in the skin of diabetic mice or the wounded skin. In addition, mitochondrial fusion was activated in control but not in the skin wounds of diabetic mice, while mitochondrial biogenesis is downregulated in the skin of diabetic mice. In conclusion, the activation of the UPR, autophagy, and mitochondrial remodeling are crucial for a proper WH. These results suggest that the increase in ER stress and autophagy in the skin of diabetic mice at baseline significantly escalated to pathological levels after wounding, contributing to impaired WH in diabetes.
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Affiliation(s)
- Ermelindo C Leal
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Tatiana Emanuelli
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Diana Santos
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - João Moura
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Ana Catarina Rg Fonseca
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Ana Burgeiro
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Eugenia Carvalho
- Center for Neuroscience and Cell Biology, Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
- Associação Protectora dos Diabéticos de Portugal (APDP), Lisbon, Portugal
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Pinho ACO, Santos D, Baldeiras I, Burgeiro A, Leal EC, Carvalho E. Mitochondrial respiration in thoracic perivascular adipose tissue of diabetic mice. J Endocrinol 2022; 254:169-184. [PMID: 35904484 DOI: 10.1530/joe-21-0446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/14/2022] [Indexed: 11/08/2022]
Abstract
Introduction Thoracic perivascular adipose tissue (tPVAT) has a phenotype resembling brown AT. Dysfunctional tPVAT appears to be linked to vascular dysfunction. Methods We evaluated uncoupling protein 1 (UCP1) expression by Western blot, oxidative stress by measuring lipid peroxidation, the antioxidant capacity by HPLC and spectrophotometry, and mitochondrial respiration by high-resolution respirometry (HRR) in tPVAT, compared to inguinal white AT (iWAT), obtained from non-diabetic (NDM) and streptozocin-induced diabetic (STZ-DM) mice. Mitochondrial respiration was assessed by HRR using protocol 1: complex I and II oxidative phosphorylation (OXPHOS) and protocol 2: fatty acid oxidation (FAO) OXPHOS. OXPHOS capacity in tPVAT was also evaluated after UCP1 inhibition by guanosine 5'-diphosphate (GDP). Results UCP1 expression was higher in tPVAT when compared with iWAT in both NDM and STZ-DM mice. The malondialdehyde concentration was elevated in tPVAT from STZ-DM compared to NDM mice. Glutathione peroxidase and reductase activities, as well as reduced glutathione levels, were not different between tPVAT from NDM and STZ-DM mice but were lower compared to iWAT of STZ-DM mice. OXPHOS capacity of tPVAT was significantly decreased after UCP1 inhibition by GDP in protocol 1. While there were no differences in the OXPHOS capacity between NDM and STZ-DM mice in protocol 1, it was increased in STZ-DM compared to NDM mice in protocol 2. Moreover, complex II- and FAO-linked respiration were elevated in STZ-DM mice under UCP1 inhibition. Conclusions Pharmacological therapies could be targeted to modulate UCP1 activity with a significant impact in the uncoupling of mitochondrial bioenergetics in tPVAT.
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Affiliation(s)
- Aryane Cruz Oliveira Pinho
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Calçada Martim de Freitas, Coimbra, Portugal
| | - Diana Santos
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, Coimbra, Portugal
| | - Inês Baldeiras
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
| | - Ana Burgeiro
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
| | - Emelindo C Leal
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, Coimbra, Portugal
| | - Eugenia Carvalho
- Center for Neuroscience and Cell Biology (CNC), Faculty of Medicine, University of Coimbra, Rua Larga, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Casa Costa Alemão, Rua Dom Francisco de Lemos, Coimbra, Portugal
- APDP-Portuguese Diabetes Association, Lisbon, Portugal
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Burgeiro A, Fonseca A, Espinoza D, Carvalho L, Lourenço N, Antunes M, Carvalho E. Proteostasis in epicardial versus subcutaneous adipose tissue in heart failure subjects with and without diabetes. Biochim Biophys Acta Mol Basis Dis 2018; 1864:2183-2198. [PMID: 29625179 PMCID: PMC6375688 DOI: 10.1016/j.bbadis.2018.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/14/2018] [Accepted: 03/29/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Cardiovascular diseases (CVDs) are leading cause of death and primary cause of morbidity and mortality in diabetic population. Epicardial adipose tissue (EAT) covers the heart's surface and is a source of biomolecules regulating heart and blood vessel physiology. The protective activation of the unfolded protein response (UPR) and autophagy allows the cardiomyocyte reticular network to restore energy and/or nutrient homeostasis and to avoid cell death. However, an excessive or prolonged UPR activation can trigger cell death. UPR activation is an early event of diabetic cardiomyopathies and deregulated autophagy is associated with CVDs. RESULTS An upregulation of UPR markers (glucose-regulated protein 78 KDa, glucose-regulated protein 94 KDa, inositol-requiring enzyme 1α, protein kinase RNA-like ER kinase and CCAAT/-enhancer-binding protein homologous protein (CHOP) gene) in EAT compared to subcutaneous adipose tissue (SAT), was observed as well as the UPR-related apoptosis marker caspase-4/procaspase-4 ratio but not in CHOP protein levels. Additionally, levels of ubiquitin and ubiquitinated proteins were decreased in EAT. Moreover, upregulation of autophagy markers (5' adenosine monophosphate-activated protein kinase, mechanistic target of rapamycin, Beclin 1, microtubule-associated protein light chain 3-II, lysosome-associated membrane protein 2, and PTEN-induced putative kinase 1) was observed, as well as an increase in the apoptotic Bim but not the ratio between Bim and the anti-apoptotic Bcl-2 in EAT. Diabetic patients show alterations in UPR activation markers but not in autophagy or apoptosis markers. CONCLUSION UPR and autophagy are increased in EAT compared to SAT, opening doors to the identification of early biomarkers for cardiomyopathies and novel therapeutic targets.
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Affiliation(s)
- A. Burgeiro
- Center of Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - A.C. Fonseca
- Center of Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - D. Espinoza
- Center of Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - L. Carvalho
- Institute of Pathology, Faculty of Medicine, University of Coimbra, 3004-517 Coimbra, Portugal
| | - N. Lourenço
- Centre for Informatics and Systems of the University of Coimbra (CISUC), Department of Informatics Engineering, University of Coimbra, Portugal
| | - M. Antunes
- Cardiothoracic Surgery Unit at the Coimbra University Hospital Centre, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
| | - E. Carvalho
- Center of Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal,The Portuguese Diabetes Association (APDP), 1250-203 Lisbon, Portugal,Arkansas Children's Research Institute, Little Rock, Arkansas 72202, United States,Corresponding author: Eugénia Carvalho, , Address for correspondence: Centro de Neurociências e Biologia Celular, Universidade de Coimbra, Rua Larga, Faculdade de Medicina, Pólo I, 1° andar,3004-504 Coimbra, Phone number: 00351 239820190, Fax number: 00351 239822776
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Burgeiro A, Cerqueira MG, Varela-Rodríguez BM, Nunes S, Neto P, Pereira FC, Reis F, Carvalho E. Glucose and Lipid Dysmetabolism in a Rat Model of Prediabetes Induced by a High-Sucrose Diet. Nutrients 2017. [PMID: 28635632 PMCID: PMC5490617 DOI: 10.3390/nu9060638] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Glucotoxicity and lipotoxicity are key features of type 2 diabetes mellitus, but their molecular nature during the early stages of the disease remains to be elucidated. We aimed to characterize glucose and lipid metabolism in insulin-target organs (liver, skeletal muscle, and white adipose tissue) in a rat model treated with a high-sucrose (HSu) diet. Two groups of 16-week-old male Wistar rats underwent a 9-week protocol: HSu diet (n = 10)-received 35% of sucrose in drinking water; Control (n = 12)-received vehicle (water). Body weight, food, and beverage consumption were monitored and glucose, insulin, and lipid profiles were measured. Serum and liver triglyceride concentrations, as well as the expression of genes and proteins involved in lipid biosynthesis were assessed. The insulin-stimulated glucose uptake and isoproterenol-stimulated lipolysis were also measured in freshly isolated adipocytes. Even in the absence of obesity, this rat model already presented the main features of prediabetes, with fasting normoglycemia but reduced glucose tolerance, postprandial hyperglycemia, compensatory hyperinsulinemia, as well as decreased insulin sensitivity (resistance) and hypertriglyceridemia. In addition, impaired hepatic function, including altered gluconeogenic and lipogenic pathways, as well as increased expression of acetyl-coenzyme A carboxylase 1 and fatty acid synthase in the liver, were observed, suggesting that liver glucose and lipid dysmetabolism may play a major role at this stage of the disease.
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Affiliation(s)
- Ana Burgeiro
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
| | - Manuela G Cerqueira
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
| | - Bárbara M Varela-Rodríguez
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
| | - Sara Nunes
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
- Laboratory of Pharmacology and Experimental Therapeutics, Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Paula Neto
- Service of Anatomical Pathology, Coimbra University Hospital Centre (CHUC), 3000-075 Coimbra, Portugal.
| | - Frederico C Pereira
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
- Laboratory of Pharmacology and Experimental Therapeutics, Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Flávio Reis
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
- Laboratory of Pharmacology and Experimental Therapeutics, Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal.
| | - Eugénia Carvalho
- Center of Neuroscience and Cell Biology (CNC) and CNC.IBILI Research Consortium, University of Coimbra, 3004-504 Coimbra, Portugal.
- The Portuguese Diabetes Association (APDP), 1250-203 Lisbon, Portugal.
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA.
- Arkansas Children's Hospital Research Institute, Little Rock, AR 72202, USA.
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Affiliation(s)
- Eugenia Carvalho
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas;
| | - Gary D Lopaschuk
- Heritage Medical Research Building, University of Alberta, Edmonton, Alberta, Canada; and
| | - Elisabet Børsheim
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas; Arkansas Children's Nutrition Center, Arkansas Children's Hospital Research Institute, and Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Ana Burgeiro
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
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Burgeiro A, Fuhrmann A, Cherian S, Espinoza D, Jarak I, Carvalho RA, Loureiro M, Patrício M, Antunes M, Carvalho E. Glucose uptake and lipid metabolism are impaired in epicardial adipose tissue from heart failure patients with or without diabetes. Am J Physiol Endocrinol Metab 2016; 310:E550-64. [PMID: 26814014 PMCID: PMC4824138 DOI: 10.1152/ajpendo.00384.2015] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/20/2016] [Indexed: 01/25/2023]
Abstract
Type 2 diabetes mellitus is a complex metabolic disease, and cardiovascular disease is a leading complication of diabetes. Epicardial adipose tissue surrounding the heart displays biochemical, thermogenic, and cardioprotective properties. However, the metabolic cross-talk between epicardial fat and the myocardium is largely unknown. This study sought to understand epicardial adipose tissue metabolism from heart failure patients with or without diabetes. We aimed to unravel possible differences in glucose and lipid metabolism between human epicardial and subcutaneous adipocytes and elucidate the potential underlying mechanisms involved in heart failure. Insulin-stimulated [(14)C]glucose uptake and isoproterenol-stimulated lipolysis were measured in isolated epicardial and subcutaneous adipocytes. The expression of genes involved in glucose and lipid metabolism was analyzed by reverse transcription-polymerase chain reaction in adipocytes. In addition, epicardial and subcutaneous fatty acid composition was analyzed by high-resolution proton nuclear magnetic resonance spectroscopy. The difference between basal and insulin conditions in glucose uptake was significantly decreased (P= 0.006) in epicardial compared with subcutaneous adipocytes. Moreover, a significant (P< 0.001) decrease in the isoproterenol-stimulated lipolysis was also observed when the two fat depots were compared, and it was strongly correlated with lipolysis, lipid storage, and inflammation-related gene expression. Moreover, the fatty acid composition of these tissues was significantly altered by diabetes. These results emphasize potential metabolic differences between both fat depots in the presence of heart failure and highlight epicardial fat as a possible therapeutic target in situ in the cardiac microenvironment.
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Affiliation(s)
- Ana Burgeiro
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Amelia Fuhrmann
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Sam Cherian
- Faculty of Integrative Sciences and Technology, Quest International University Perak, Perak, Malaysia
| | - Daniel Espinoza
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Ivana Jarak
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Rui A Carvalho
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal;
| | - Marisa Loureiro
- Laboratory of Biostatistics and Medical Informatics, IBILI - Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Miguel Patrício
- Laboratory of Biostatistics and Medical Informatics, IBILI - Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Manuel Antunes
- Cardiothroracic Surgery Unit at the University Hospital of Coimbra, Coimbra, Portugal
| | - Eugénia Carvalho
- Center of Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Portuguese Diabetes Association, Lisbon, Portugal; Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas; and Arkansas Children's Hospital Research Institute, Little Rock, Arkansas
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Burgeiro A, Mollinedo F, Oliveira PJ. Ipilimumab and vemurafenib: two different routes for targeting melanoma. Curr Cancer Drug Targets 2014; 13:879-94. [PMID: 23862981 DOI: 10.2174/15680096113139990080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 05/20/2013] [Accepted: 06/26/2013] [Indexed: 11/22/2022]
Abstract
Melanoma, a malignant tumor of melanocytes, causes the majority (75%) of all skin cancer-related deaths. The overall efficacy of different anti-cancer therapies on metastatic melanoma is quite limited, due to its high resistance to all forms of conventional treatments, including chemotherapy, radiotherapy and immunotherapy, leading to low patient survival rates. The present review identifies possible strategies for the treatment of advanced melanoma and describes two novel agents, Ipilimumab and Vemurafenib, which may now be useful for clinical practice. Ipilimumab, a humanized, IgG1 monoclonal antibody, acts through immune-modulation since it blocks cytotoxic T-lymphocyte- associated antigen-4 (CTLA-4), producing favourable antitumor immune system responses and reducing tolerance to tumor-associated antigens. Vemurafenib is a novel oral small-molecule kinase inhibitor with high selectivity and efficacy toward a specific mutated oncogenic BRAF-signalling mediator. The mechanism of action of Vemurafenib involves selective inhibition of the mutated BRAF(V600E) kinase that leads to reduced signalling through the aberrant MAPK pathway. However, as patients commonly develop Vemurafenib resistance, clinical trials of Vemurafenib in combination with Ipilimumab or other targeted or cytotoxic chemotherapeutic agents may provide more effective regimens with longterm clinical benefits, emphasizing the importance of simultaneously targeting several pathways. As both drugs had only modest effects on median survival, new therapeutic combinations are needed, such as BRAF inhibitors with MEK inhibitors or combinations of immunomodulators and pathway inhibitors. Such strategies should have the potential of maximizing antitumor effect while minimizing and improving clinical benefit. Nevertheless, these two new agents open a promising view into an effective management of melanoma.
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Affiliation(s)
- Ana Burgeiro
- Center for Neuroscience and Cell Biology, Largo Marquês de Pombal, University of Coimbra, 3004-517 Coimbra, Portugal.
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Carvalho FS, Burgeiro A, Garcia R, Moreno AJ, Carvalho RA, Oliveira PJ. Doxorubicin-Induced Cardiotoxicity: From Bioenergetic Failure and Cell Death to Cardiomyopathy. Med Res Rev 2013; 34:106-35. [DOI: 10.1002/med.21280] [Citation(s) in RCA: 349] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Filipa S. Carvalho
- CNC-Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
- Department of Life Sciences; University of Coimbra; 3004-517 Coimbra Portugal
| | - Ana Burgeiro
- CNC-Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
- IMAR-Institute of Marine Research; University of Coimbra; Portugal
| | - Rita Garcia
- IMAR-Institute of Marine Research; University of Coimbra; Portugal
| | - António J. Moreno
- Department of Life Sciences; University of Coimbra; 3004-517 Coimbra Portugal
- IMAR-Institute of Marine Research; University of Coimbra; Portugal
| | - Rui A. Carvalho
- CNC-Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
- Department of Life Sciences; University of Coimbra; 3004-517 Coimbra Portugal
| | - Paulo J. Oliveira
- CNC-Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
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Diogo CV, Machado NG, Barbosa IA, Serafim TL, Burgeiro A, Oliveira PJ. Berberine as a promising safe anti-cancer agent - is there a role for mitochondria? Curr Drug Targets 2011; 12:850-9. [PMID: 21269266 DOI: 10.2174/138945011795528930] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 07/05/2010] [Indexed: 11/22/2022]
Abstract
Metabolic regulation is largely dependent on mitochondria, which play an important role in energy homeostasis. Imbalance between energy intake and expenditure leads to mitochondrial dysfunction, characterized by a reduced ratio of energy production (ATP production) to respiration. Due to the role of mitochondrial factors/events in several apoptotic pathways, the possibility of targeting that organelle in the tumor cell, leading to its elimination is very attractive, although the safety issue is problematic. Berberine, a benzyl-tetra isoquinoline alkaloid extracted from plants of the Berberidaceae family, has been extensively used for many centuries, especially in the traditional Chinese and Native American medicine. Several evidences suggest that berberine possesses several therapeutic uses, including anti-tumoral activity. The present review supplies evidence that berberine is a safe anti-cancer agent, exerting several effects on mitochondria, including inhibition of mitochondrial Complex I and interaction with the adenine nucleotide translocator which can explain several of the described effects on tumor cells.
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Affiliation(s)
- Catia V Diogo
- Center for Neuroscience and Cell Biology, Department of Life Sciences, University of Coimbra, Portugal
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Burgeiro A, Gajate C, Dakir EH, Oliveira PJ, Mollinedo F. Involvement of mitochondrial and survival signaling in berberine-induced apoptosis in melanoma cells. BMC Proc 2010. [DOI: 10.1186/1753-6561-4-s2-p15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Burgeiro A, Gajate C, Dakir EH, Oliveira PJ, Mollinedo F. Involvement of mitochondrial and survival signaling in berberine-induced apoptosis in melanoma cells. BMC Proc 2010. [PMCID: PMC3255010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Ana Burgeiro
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas (C.S.I.C.) – Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain ,Center for Neurosciences and Cell Biology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Consuelo Gajate
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas (C.S.I.C.) – Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - El H Dakir
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas (C.S.I.C.) – Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - Paulo J Oliveira
- Center for Neurosciences and Cell Biology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Faustino Mollinedo
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, Consejo Superior de Investigaciones Científicas (C.S.I.C.) – Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
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Vieira M, Fernandes J, Burgeiro A, Thomas GM, Huganir RL, Duarte CB, Carvalho AL, Santos AE. Excitotoxicity through Ca2+-permeable AMPA receptors requires Ca2+-dependent JNK activation. Neurobiol Dis 2010; 40:645-55. [PMID: 20708684 DOI: 10.1016/j.nbd.2010.08.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Revised: 07/10/2010] [Accepted: 08/05/2010] [Indexed: 01/21/2023] Open
Abstract
The GluA4-containing Ca(2+)-permeable α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptors (Ca-AMPARs) were previously shown to mediate excitotoxicity through mechanisms involving the activator protein-1 (AP-1), a c-Jun N-terminal kinase (JNK) substrate. To further investigate JNK involvement in excitotoxic pathways coupled to Ca-AMPARs we used HEK293 cells expressing GluA4-containing Ca-AMPARs (HEK-GluA4). Cell death induced by overstimulation of Ca-AMPARs was mediated, at least in part, by JNK. Importantly, JNK activation downstream of these receptors was dependent on the extracellular Ca(2+) concentration. In our quest for a molecular link between Ca-AMPARs and the JNK pathway we found that the JNK interacting protein-1 (JIP-1) interacts with the GluA4 subunit of AMPARs through the N-terminal domain. In vivo, the excitotoxin kainate promoted the association between GluA4 and JIP-1 in the rat hippocampus. Taken together, our results show that the JNK pathway is activated by Ca-AMPARs upon excitotoxic stimulation and suggest that JIP-1 may contribute to the propagation of the excitotoxic signal.
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Affiliation(s)
- M Vieira
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
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Diogo CV, Félix L, Vilela S, Burgeiro A, Barbosa IA, Carvalho MJ, Oliveira PJ, Peixoto FP. Mitochondrial toxicity of the phyotochemicals daphnetoxin and daphnoretin – Relevance for possible anti-cancer application. Toxicol In Vitro 2009; 23:772-9. [DOI: 10.1016/j.tiv.2009.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Revised: 04/01/2009] [Accepted: 04/02/2009] [Indexed: 02/03/2023]
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Pereira CCL, Diogo CV, Burgeiro A, Oliveira PJ, Marques MPM, Braga SS, Paz FAA, Pillinger M, Gonçalves IS. Complex Formation between Heptakis(2,6-di-O-methyl)-β-cyclodextrin and Cyclopentadienyl Molybdenum(II) Dicarbonyl Complexes: Structural Studies and Cytotoxicity Evaluations. Organometallics 2008. [DOI: 10.1021/om800413w] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cláudia C. L. Pereira
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Cátia V. Diogo
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Ana Burgeiro
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Paulo J. Oliveira
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Maria Paula M. Marques
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Susana S. Braga
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Filipe A. Almeida Paz
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Martyn Pillinger
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
| | - Isabel S. Gonçalves
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal, Center for Neuroscience and Cell Biology, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal, and Department of Biochemistry, Faculty of Science and Technology, University of Coimbra, Apartado 3126, 3001-401 Coimbra, Portugal
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