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Ferreira J, Longatto-Filho A, Afonso J, Roque S, Carneiro AL, Vila I, Silva C, Cunha C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Cunha P. Inflammatory Cells in Adipose Tissue and Skeletal Muscle of Patients with Peripheral Arterial Disease or Chronic Venous Disease: A Prospective, Observational, and Histological Study. J Cardiovasc Dev Dis 2024; 11:121. [PMID: 38667739 PMCID: PMC11050534 DOI: 10.3390/jcdd11040121] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The main goal of this study was to assess whether the presence of peripheral arterial disease (PAD) correlates with increased inflammatory cell infiltration. An observational, single-centre, and prospective study was conducted from January 2018 to July 2022. Clinical characteristics and anthropometric measures were registered. Consecutive PAD patients with surgical indications for a common femoral artery approach and patients with varicose veins with an indication for surgical ligation of the saphenofemoral junction were included. In both groups, samples of sartorius skeletal muscle, subcutaneous adipose tissue (SAT), and perivascular adipose tissue (PVAT) were collected from the femoral region. We analysed the characteristics of adipocytes and the presence of haemorrhage and inflammatory cells in the samples of PVAT and SAT via haematoxylin-eosin staining. We found that patients with PAD had significantly more inflammatory cells in PVAT [16 (43.24%) vs. 0 (0%) p = 0.008]. Analysing SAT histology, we observed that patients with PAD had significantly more CD45+ leucocytes upon immunohistochemical staining [32 (72.73%) vs. 3 (27.27%) p = 0.005]. Upon analysing skeletal muscle histology with haematoxylin-eosin staining, we evaluated skeletal fibre preservation, as well as the presence of trauma, haemorrhage, and inflammatory cells. We registered a significantly higher number of inflammatory cells in patients with PAD [well-preserved skeletal fibres: PAD = 26 (63.41%) vs. varicose veins = 3 (37.50%) p = 0.173; trauma: PAD = 4 (9.76%) vs. varicose veins = 2 (25.00%) p = 0.229; haemorrhage: PAD = 6 (14.63%) vs. varicose veins = 0 (0%) p = 0.248; inflammatory cells: PAD = 18 (43.90%) vs. varicose veins = 0 (0%) p = 0.018]. Patients with PAD had a higher number of inflammatory cells in skeletal muscle and adipose tissue (PVAT and SAT) when compared with those with varicose veins, emphasizing the role of inflammation in this group of patients.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department–Fisiologia e Cirurgia, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Department of Pathology (LIM-14), University of São Paulo School of Medicine, São Paulo 01246-903, SP, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil
| | - Julieta Afonso
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | | | - Isabel Vila
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Silva
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Cunha
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Armando Mansilha
- Vascular Surgery Department–Fisiologia e Cirurgia, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal (J.A.)
- Centro Académico Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal (C.S.)
- ICVS/3B’s–PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
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Afonso J, Barbosa-Matos C, Silvestre R, Pereira-Vieira J, Gonçalves SM, Mendes-Alves C, Parpot P, Pinto J, Carapito Â, Guedes de Pinho P, Santos L, Longatto-Filho A, Baltazar F. Cisplatin-Resistant Urothelial Bladder Cancer Cells Undergo Metabolic Reprogramming beyond the Warburg Effect. Cancers (Basel) 2024; 16:1418. [PMID: 38611096 PMCID: PMC11010907 DOI: 10.3390/cancers16071418] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Advanced urothelial bladder cancer (UBC) patients are tagged by a dismal prognosis and high mortality rates, mostly due to their poor response to standard-of-care platinum-based therapy. Mediators of chemoresistance are not fully elucidated. This work aimed to study the metabolic profile of advanced UBC, in the context of cisplatin resistance. Three isogenic pairs of parental cell lines (T24, HT1376 and KU1919) and the matching cisplatin-resistant (R) sublines were used. A set of functional assays was used to perform a metabolic screening on the cells. In comparison to the parental sublines, a tendency was observed towards an exacerbated glycolytic metabolism in the cisplatin-resistant T24 and HT1376 cells; this glycolytic phenotype was particularly evident for the HT1376/HT1376R pair, for which the cisplatin resistance ratio was higher. HT1376R cells showed decreased basal respiration and oxygen consumption associated with ATP production; in accordance, the extracellular acidification rate was also higher in the resistant subline. Glycolytic rate assay confirmed that these cells presented higher basal glycolysis, with an increase in proton efflux. While the results of real-time metabolomics seem to substantiate the manifestation of the Warburg phenotype in HT1376R cells, a shift towards distinct metabolic pathways involving lactate uptake, lipid biosynthesis and glutamate metabolism occurred with time. On the other hand, KU1919R cells seem to engage in a metabolic rewiring, recovering their preference for oxidative phosphorylation. In conclusion, cisplatin-resistant UBC cells seem to display deep metabolic alterations surpassing the Warburg effect, which likely depend on the molecular signature of each cell line.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Catarina Barbosa-Matos
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Joana Pereira-Vieira
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Samuel Martins Gonçalves
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Camille Mendes-Alves
- CQUM, Centre of Chemistry, Chemistry Department, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.M.-A.); (P.P.)
| | - Pier Parpot
- CQUM, Centre of Chemistry, Chemistry Department, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.M.-A.); (P.P.)
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Joana Pinto
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; (J.P.); (Â.C.); (P.G.d.P.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Ângela Carapito
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; (J.P.); (Â.C.); (P.G.d.P.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Paula Guedes de Pinho
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; (J.P.); (Â.C.); (P.G.d.P.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Lúcio Santos
- Experimental Pathology and Therapeutics Group, Research Center of the Portuguese Institute of Oncology (CI-IPOP), 4200-072 Porto, Portugal;
- Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Laboratory of Medical Investigation (LIM14), Faculty of Medicine, São Paulo State University, São Paulo 01049-010, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo 14784-400, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.B.-M.); (R.S.); (J.P.-V.); (S.M.G.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
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Ferreira J, Afonso J, Longatto-Filho A, Roque S, Carneiro A, Vila I, Silva C, Cunha C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Cunha P. Inflammation Is a Histological Characteristic of Skeletal Muscle in Chronic Limb Threatening Ischemia. Ann Vasc Surg 2024; 99:10-18. [PMID: 37931803 DOI: 10.1016/j.avsg.2023.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND The loss of skeletal muscle is a prognostic factor in several diseases including in patients with chronic limb threatening ischemia (CLTI). Patients with CLTI also have a lower skeletal mass and area when compared to those with claudication. However, there are no currently available data regarding the histological characteristics of core muscles in patients with CLTI. This study aims to determine the differences in core skeletal muscles between patients with claudication and those with CLTI. The second aim is to evaluate the differences in myokines, which are molecules secreted by skeletal muscle, between patients with claudication and those with CLTI. METHODS An observational, prospective study was conducted from January 2018 to July 2022 involving consecutive patients with peripheral arterial disease (PAD). The clinical characteristics were registered. In PAD patients with surgical indication for common femoral artery approach, samples of sartorius skeletal muscle (and not from the limb muscles directly involved in the ischemic process) were collected. The samples were submitted to histological characterization on hematoxylin-eosin and to immunohistochemical analysis to detect CD45+ leukocytes and CD163+ macrophages. The extent of the inflammatory cells (leukocytes and macrophages) was semiquantitatively assessed using a 0-to-4 grade scale as follows: absent (0†), mild (†), moderate (††), severe (†††), and very severe (††††). Serum levels of myokines: irisin, myostatin, IL-8, and lL-6 were determined with multiplex bead-based immunoassay. RESULTS 119 patients (mean age: 67.58 ± 9.60 years old, 79.80% males) 64 with claudication and 54 with CLTI were enrolled in the study. No differences were registered between patients with claudication and those with CLTI on age, gender, cardiovascular risk factors, and medication, except on smoking habits. There was a significantly higher prevalence of smokers and a higher smoking load in the claudication group. Samples of sartorius skeletal muscle from 40 patients (14 with claudication and 26 with CLTI) were submitted to histological analysis. No differences were found in skeletal muscle fibers preservation, trauma, or hemorrhage (on hematoxylin-eosin staining). However, in the immunohistochemistry study, we found more inflammatory cells CD45+ leukocytes in patients with CLTI when compared to those with claudication [CD45+ ≥ moderate (††): claudication (n = 14): 4; 28.57%; CLTI (n = 25): 16; 64.00%; P = 0.034]. Patients with CLTI also had higher tissue levels of CD163+ macrophages, but this difference was not significant [CD163+ ≥ moderate (††): claudication (n = 13): 7; 53.85%; CLTI (n = 27): 21; 77.78%; P = 0.122]. The serum levels of the myokines, irisin, and myostatin were below the lower limit of detection, in the majority of patients, so no valid results were obtained. However, patients with CLTI had a higher serum level of Interleukin (IL)-6 and IL-8. CONCLUSIONS CLTI patients exhibit increased quantities of leukocytes in their sartorius muscle, as well as elevated serum levels of myokines IL-8 and IL-6. Inflamed skeletal muscle can contribute to the loss of muscle mass and account for the lower density of skeletal muscle observed in CLTI. Additionally, inflamed skeletal muscle may contribute to the development of systemic inflammation through the secretion of pro-inflammatory cytokines into the systemic circulation. Halting the inflammatory process could eventually improve the prognosis of CLTI patients.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department - Physiology and Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Clinical Academic Center Hospital de Trás-os-Montes e Alto Douro-Professor Doutor Nuno Grande-CACTMAD, Vila Real, Portugal.
| | - Julieta Afonso
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil; Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Alexandre Carneiro
- Radiology Department, Unidade Local de Saúde Alto Minho, Viana do Castelo, Portugal
| | - Isabel Vila
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Cristina Silva
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Cristina Cunha
- Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal
| | - Armando Mansilha
- Vascular Surgery Department - Physiology and Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Department of Angiology and Vascular Surgery, Centro Hospitalar Universitário de São João, Porto, Portugal; Faculty of Medicine, University of Porto, Porto, Portugal
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga, Portugal; Academic Center Hospital da Senhora da Oliveira, Guimarães, Portugal; Medicine Department, Hospital da Senhora da Oliveira, Guimarães, Portugal; Internal Medicine Department, Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Hospital da Senhora da Oliveira, Guimarães, Portugal
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Silva A, Félix A, Cerqueira M, Gonçalves CS, Sampaio-Marques B, Longatto-Filho A, Baltazar F, Afonso J. Effects of Lactate Transport Inhibition by AZD3965 in Muscle-Invasive Urothelial Bladder Cancer. Pharmaceutics 2023; 15:2688. [PMID: 38140029 PMCID: PMC10747642 DOI: 10.3390/pharmaceutics15122688] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/31/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
The Warburg Effect is characterized by high rates of glucose uptake and lactate production. Monocarboxylate transporters (MCTs) are crucial to avoid cellular acidosis by internal lactate accumulation, being largely overexpressed by cancer cells and associated with cancer aggressiveness. The MCT1-specific inhibitor AZD3965 has shown encouraging results in different cancer models. However, it has not been tested in urothelial bladder cancer (UBC), a neoplasm where rates of recurrence, progression and platinum-based resistance are generally elevated. We used two muscle-invasive UBC cell lines to study AZD3965 activity regarding lactate production, UBC cells' viability and proliferation, cell cycle profile, and migration and invasion properties. An "in vivo" assay with the chick chorioallantoic membrane model was additionally performed, as well as the combination of the compound with cisplatin. AZD3965 demonstrated anticancer activity upon low levels of MCT4, while a general lack of sensitivity was observed under MCT4 high expression. Cell viability, proliferation and migration were reduced, cell cycle was arrested, and tumor growth "in vivo" was inhibited. The compound sensitized these MCT4-low-expressing cells to cisplatin. Thus, AZD3965 seems to display anticancer properties in UBC under a low MCT4-expression setting, but additional studies are necessary to confirm AZD3965 activity in this cancer model.
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Affiliation(s)
- Ana Silva
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Ana Félix
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Mónica Cerqueira
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Céline S. Gonçalves
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Belém Sampaio-Marques
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Laboratory of Medical Investigation (LIM14), Faculty of Medicine, São Paulo State University, São Paulo 01049-010, SP, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (A.S.); (A.F.); (M.C.); (C.S.G.); (B.S.-M.); (A.L.-F.); (F.B.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
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Ferreira D, Santos-Pereira C, Costa M, Afonso J, Yang S, Hensel J, McAndrews KM, Longatto-Filho A, Fernandes R, Melo JB, Baltazar F, Moreira JN, Kalluri R, Rodrigues LR. Exosomes modified with anti-MEK1 siRNA lead to an effective silencing of triple negative breast cancer cells. Biomater Adv 2023; 154:213643. [PMID: 37778291 DOI: 10.1016/j.bioadv.2023.213643] [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] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
Triple negative breast cancer (TNBC) is a highly heterogenous disease not sensitive to endocrine or HER2 therapy and standardized treatment regimens are still missing. Therefore, development of novel TNBC treatment approaches is of utmost relevance. Herein, the potential of MAPK/ERK downregulation by RNAi-based therapeutics in a panel of mesenchymal stem-like TNBC cell lines was uncovered. Our data revealed that suppression of one of the central nodes of this signaling pathway, MEK1, affects proliferation, migration, and invasion of TNBC cells, that may be explained by the reversion of the epithelial-mesenchymal transition phenotype, which is facilitated by the MMP-2/MMP-9 downregulation. Moreover, an exosome-based system was successfully generated for the siRNA loading (iExoMEK1). Our data suggested absence of modification of the physical properties and general integrity of the iExoMEK1 comparatively to the unmodified counterparts. Such exosome-mediated downregulation of MEK1 led to a tumor regression accompanied by a decrease of angiogenesis using the chick chorioallantoic-membrane model. Our results highlight the potential of the targeting of MAPK/ERK cascade as a promising therapeutic approach against TNBC.
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Affiliation(s)
- Débora Ferreira
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; LABBELS-Associate Laboratory, 4710-057 Braga, Portugal
| | - Cátia Santos-Pereira
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; LABBELS-Associate Laboratory, 4710-057 Braga, Portugal
| | - Marta Costa
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sujuan Yang
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77005, USA
| | - Janine Hensel
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77005, USA
| | - Kathleen M McAndrews
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77005, USA
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal; Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil; Laboratory of Medical Investigation (LIM 14), Faculty of Medicine, São Paulo State University, S. Paulo, Brazil
| | - Rui Fernandes
- HEMS-Histology and Electron Microscopy Service, IBMC/I3S, Universidade do Porto, 4200-135 Porto, Portugal
| | - Joana B Melo
- Cytogenetics and Genomics Laboratory, Faculty of Medicine, University of Coimbra, Portugal; Center of Investigation on Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Portugal
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João N Moreira
- CNC-Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Polo 1), Rua Larga, 3004-504 Coimbra, Portugal; Univ Coimbra-University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77005, USA; School of Bioengineering, Rice University, Houston, TX, USA; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Ligia R Rodrigues
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; LABBELS-Associate Laboratory, 4710-057 Braga, Portugal.
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Ferreira J, Afonso J, Carneiro AL, Vila I, Cunha C, Roque S, Silva C, Mesquita A, Cotter J, Correia-Neves M, Mansilha A, Longatto-Filho A, Cunha P. Exploring the Diversity of Visceral, Subcutaneous and Perivascular Adipose Tissue in a Vascular Surgery Population. J Cardiovasc Dev Dis 2023; 10:271. [PMID: 37504527 PMCID: PMC10380901 DOI: 10.3390/jcdd10070271] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/03/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
The prevalence of obesity has doubled, with a concomitant increase in cardiovascular disease. This study aimed to compare the characteristics of visceral, subcutaneous and peri-aortic adipose tissue determined with computed tomography (CT) scans and to correlate them with cardiovascular risk factors, anthropometric measures and medication. An observational and prospective study was conducted, and 177 subjects were included. Peri-aortic adipose tissue had the highest density, while the subcutaneous adipose tissue had the lowest. The density of subcutaneous adipose tissue differs from the density of visceral (p = 0.00) and peri-aortic adipose tissue (p = 0.00). Smokers/ex-smokers had a lower area (p = 0.00) and density (p = 0.02) of subcutaneous adipose tissue. Multiple linear regression analysis showed that sex was a predictor of subcutaneous adipose tissue area (β = -0.27, t = -3.12, p = 0.00) but smoking habits were not. After controlling for sex, we found that the association between smokers/ex-smokers and area of subcutaneous adipose tissue was lost, but the association with density persisted. Patients with hypertension had a higher visceral adipose tissue area, and this relationship was maintained even after adjusting for gender. Peri-aortic adipose tissue is similar to visceral and distinct from subcutaneous adipose tissue. Cardiovascular risk factors have different influences in distinct adipose compartments.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department, Centro Hospitalar de Trás-os-Montes e Alto Douro, 5000-508 Vila Real, Portugal
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Clinical Academic Center Hospital de Trás-os-Montes e Alto Douro, Professor Doutor Nuno Grande, CACTMAD, 5000-508 Vila Real, Portugal
| | - Julieta Afonso
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Alexandre Lima Carneiro
- Radiology Department, Unidade Local de Saúde Alto Minho, 4904-858 Viana do Castelo, Portugal
| | - Isabel Vila
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Cunha
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Susana Roque
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Cristina Silva
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
| | - Armando Mansilha
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- Department of Angiology and Vascular Surgery, Hospital de São João, 4200-319 Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Faculty of Medicine, Department of Pathology, University of São Paulo, São Paulo 05508-900, SP, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-390, SP, Brazil
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- Academic Center Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- ICVS/3B's-PT Government Associated Laboratory, 4710-057 Braga, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
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Singh M, Afonso J, Sharma D, Gupta R, Kumar V, Rani R, Baltazar F, Kumar V. Targeting monocarboxylate transporters (MCTs) in cancer: How close are we to the clinics? Semin Cancer Biol 2023; 90:1-14. [PMID: 36706846 DOI: 10.1016/j.semcancer.2023.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/23/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023]
Abstract
As a result of metabolic reprogramming, cancer cells display high rates of glycolysis, causing an excess production of lactate along with an increase in extracellular acidity. Proton-linked monocarboxylate transporters (MCTs) are crucial in the maintenance of this metabolic phenotype, by mediating the proton-coupled lactate flux across cell membranes, also contributing to cancer cell pH regulation. Among the proteins codified by the SLC16 gene family, MCT1 and MCT4 isoforms are the most explored in cancers, being overexpressed in many cancer types, from solid tumours to haematological malignancies. Similarly to what occurs in particular physiological settings, MCT1 and MCT4 are able to mediate lactate shuttles among cancer cells, and also between cancer and stromal cells in the tumour microenvironment. This form of metabolic cooperation is responsible for important cancer aggressiveness features, such as cell proliferation, survival, angiogenesis, migration, invasion, metastasis, immune tolerance and therapy resistance. The growing understanding of MCT functions and regulation is offering a new path to the design of novel inhibitors that can be foreseen in clinical practices. This review provides an overview of the role of MCT isoforms in cancer and summarizes the recent advances in their pharmacological targeting, highlighting the potential of new potent and selective MCT1 and/or MCT4 inhibitors in cancer therapeutics, and anticipating its inclusion in clinical practice.
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Affiliation(s)
- Mamta Singh
- Amity Institute of Molecular Medicine and Stem Cell Research Amity, University UP, Sector-125, Noida 201313, India
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Dolly Sharma
- Amity Institute of Molecular Medicine and Stem Cell Research Amity, University UP, Sector-125, Noida 201313, India; Amity Institute of Biotechnology, Amity University UP, Sector-125, Noida, India-201313
| | - Rajat Gupta
- Amity Institute of Molecular Medicine and Stem Cell Research Amity, University UP, Sector-125, Noida 201313, India
| | - Vivek Kumar
- Department of Chemistry, DBG College, Sector-18, Panipat, Haryana, India
| | - Reshma Rani
- Drug Discovery, Jubilant Biosys, Greater Noida 201306, UP, India.
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.
| | - Vinit Kumar
- Amity Institute of Molecular Medicine and Stem Cell Research Amity, University UP, Sector-125, Noida 201313, India.
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Silva A, Cerqueira MC, Rosa B, Sobral C, Pinto-Ribeiro F, Costa MF, Baltazar F, Afonso J. Prognostic Value of Monocarboxylate Transporter 1 Overexpression in Cancer: A Systematic Review. Int J Mol Sci 2023; 24:ijms24065141. [PMID: 36982217 PMCID: PMC10049181 DOI: 10.3390/ijms24065141] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
Energy production by cancer is driven by accelerated glycolysis, independently of oxygen levels, which results in increased lactate production. Lactate is shuttled to and from cancer cells via monocarboxylate transporters (MCTs). MCT1 works both as an importer and an extruder of lactate, being widely studied in recent years and generally associated with a cancer aggressiveness phenotype. The aim of this systematic review was to assess the prognostic value of MCT1 immunoexpression in different malignancies. Study collection was performed by searching nine different databases (PubMed, EMBASE, ScienceDirect, Scopus, Cochrane Library, Web of Science, OVID, TRIP and PsycINFO), using the keywords "cancer", "Monocarboxylate transporter 1", "SLC16A1" and "prognosis". Results showed that MCT1 is an indicator of poor prognosis and decreased survival for cancer patients in sixteen types of malignancies; associations between the transporter's overexpression and larger tumour sizes, higher disease stage/grade and metastasis occurrence were also frequently observed. Yet, MCT1 overexpression correlated with better outcomes in colorectal cancer, pancreatic ductal adenocarcinoma and non-small cell lung cancer patients. These results support the applicability of MCT1 as a biomarker of prognosis, although larger cohorts would be necessary to validate the overall role of MCT1 as an outcome predictor.
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Affiliation(s)
- Ana Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Mónica Costa Cerqueira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Beatriz Rosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Catarina Sobral
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Marta Freitas Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal
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Afonso J, Gonçalves C, Costa M, Ferreira D, Santos L, Longatto-Filho A, Baltazar F. Glucose Metabolism Reprogramming in Bladder Cancer: Hexokinase 2 (HK2) as Prognostic Biomarker and Target for Bladder Cancer Therapy. Cancers (Basel) 2023; 15:cancers15030982. [PMID: 36765947 PMCID: PMC9913750 DOI: 10.3390/cancers15030982] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Proliferating cancer cells are able to reprogram their energy metabolism, favouring glycolysis even in the presence of oxygen and fully functioning mitochondria. Research is needed to validate the glycolysis-related proteins as prognostic/predictive biomarkers in urothelial bladder carcinoma (UBC), a malignancy tagged by high recurrence rates and poor response to chemotherapy. Here, we assessed GLUT1, HK2, PFKL, PKM2, phospho-PDH, and LDHA immunoexpression in 76 UBC samples, differentiating among urothelial, fibroblast, and endothelial cells and among normoxic versus hypoxic areas. We additionally studied the functional effects of the HK2 inhibitor 2-deoxy-D-glucose (2DG) in "in vitro" and "in vivo" preclinical UBC models. We showed that the expression of the glycolysis-related proteins is associated with UBC aggressiveness and poor prognosis. HK2 remained as an independent prognostic factor for disease-free and overall survival. 2DG decreased the UBC cell's viability, proliferation, migration, and invasion; the inhibition of cell cycle progression and apoptosis occurrence was also verified. A significant reduction in tumour growth and blood vessel formation upon 2DG treatment was observed in the chick chorioallantoic membrane assay. 2DG potentiated the cisplatin-induced inhibition of cell viability in a cisplatin-resistant subline. This study highlights HK2 as a prognostic biomarker for UBC patients and demonstrates the potential benefits of using 2DG as a glycolysis inhibitor. Future studies should focus on integrating 2DG into chemotherapy design, as an attempt to overcome cisplatin resistance.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Céline Gonçalves
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Marta Costa
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Débora Ferreira
- Centre of Biological Engineering (CEB), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Lúcio Santos
- Experimental Pathology and Therapeutics Group, Research Center of the Portuguese Institute of Oncology (CI-IPOP), 4200-072 Porto, Portugal
- Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Laboratory of Medical Investigation (LIM14), Faculty of Medicine, São Paulo State University, São Paulo 01049-010, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo 14784-400, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: ; Tel.: +351-253-60-48-28
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Afonso J, Barbosa A, Aguiar Pastrez PR, Bonatelli M, Alves da Costa RF, Pinheiro C, Longatto-Filho A, Baltazar F. Clinical and Prognostic Impact of the Warburg Effect in Esophageal Carcinoma: Monocarboxylate Transporters as Candidates for Therapeutic Targeting. Pathobiology 2023; 90:251-269. [PMID: 36724756 DOI: 10.1159/000528562] [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] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 12/02/2022] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION Esophageal cancer (EC) seems to display increased glycolytic activity, but clinical studies on the expression/prognostic significance of glycometabolism-related proteins, as well as functional assays, are missing. METHODS Expression of 10 glycolytic biomarkers was evaluated by immunohistochemistry in tissue sections from 95 patients. Two esophageal squamous cell carcinoma (ESCC) cell lines were used to assess the effect of monocarboxylate transporter (MCT) downregulation on cell viability and extracellular lactate/glucose accumulation. RESULTS Expression of MCT1, MCT4, CD147, and GLUT1 was significantly associated with an ESCC histopathology, while a poor clinicopathological profile was seen in GLUT1- and LDHA-positive EC cases. In the ESCC group, MCT1 immunoreactivity is associated with high TNM stage and metastasis. The 3-year overall survival (OS) rate was significantly influenced by MCT4 and CAIX positivity and HKII negativity. Those biomarkers were considered independent prognostic factors of OS in multivariate analysis. Dual inhibition of MCT1/4 expression decreased cell viability and extracellular lactate accumulation in ESCC cells. CONCLUSION Elevated glycolytic rates correlate with a poor clinicopathological profile in EC patients. MCT4 and CAIX positivity independently predict a worse prognosis. Due to the lack of information on treatment modalities, we could not further infer the role of these biomarkers in predicting response to therapy, which needs to be assessed in future studies. In addition, MCT1/4 targeting should be performed both "in vitro" and "in vivo" to further explore its impact on tumor growth and response to classical therapies. HKII expression and function, particularly in the tumor stroma, should be investigated.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal,
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal,
| | - Andreia Barbosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | | | - Murilo Bonatelli
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Ricardo Filipe Alves da Costa
- Educational and Research Institute, Barretos Cancer Hospital, Barretos, Brazil
- Barretos School of Health Sciences Dr. Paulo Prata - FACISB, Barretos, Brazil
| | - Céline Pinheiro
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Barretos School of Health Sciences Dr. Paulo Prata - FACISB, Barretos, Brazil
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Laboratory of Medical Investigation (LIM 14), Faculty of Medicine, São Paulo State University, São Paulo, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Gholami S, Chamorro-Petronacci C, Pérez-Sayáns M, Suárez Peñaranda J, Longatto-Filho A, Baltazar F, Afonso J. Immunoexpression profile of hypoxia-inducible factor (HIF) targets in potentially malignant and malignant oral lesions: a pilot study. J Appl Oral Sci 2023; 31:e20220461. [PMID: 37194791 DOI: 10.1590/1678-7757-2022-0461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/30/2023] [Indexed: 05/18/2023] Open
Abstract
Oral potentially malignant disorders (OPMD) are associated with an increased risk of oral squamous cell carcinoma (OSCC). OSCC has an aggressive profile and is the most prevalent among different head and neck malignancies. Most OSCC patients are diagnosed with advanced stage tumors and have a poor prognosis. Cancer cells are able to reprogram their metabolism, even in the presence of oxygen, enhancing the conversion of glucose to lactate via the glycolytic pathway, a phenomenon mainly regulated by hypoxia-inducible factor (HIF) signaling. Thus, several glycometabolism-related biomarkers are upregulated. This study aimed to evaluate the immunoexpression of the HIF targets GLUT1, GLUT3, HK2, PFKL, PKM2, pPDH, LDHA, MCT4, and CAIX in OPMD and OSCC samples, in order to identify potential correlations between biomarkers' immunoexpression, clinicopathological features, and prognostic parameters. OSCC and OPMD samples from 21 and 34 patients (respectively) were retrospectively collected and stained for the different biomarkers by immunohistochemistry. CAIX and MCT4 expressions were significantly higher in OSCC samples when compared with OPMD samples, while the rest were also expressed by OPMD. GLUT3 and PKM2 alone, and the concomitant expression of more than four glycometabolism-related biomarkers were significantly correlated with the presence of dysplasia in OPMD. When considering OSCC cases, a trend toward increased expression of biomarkers and poor clinicopathological features was observed, and the differences regarding HK2, PFKL, LDHA and MCT4 expression were significant. Moreover, HK2 and CAIX were correlated with low survival rates. GLUT1 and GLUT3 were significantly associated with poor outcome when their expression was observed in the hypoxic region of malignant lesions. OPMD and OSCC cells overexpress glycolysis-related proteins, which is associated with aggressive features and poor patient outcome. Further research is needed to deeply understand the glycolic phenotype in the process of oral carcinogenesis.
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Affiliation(s)
- Shakiba Gholami
- University of Minho, School of Medicine, Life and Health Sciences Research Institute (ICVS), Braga, Portugal
- University of Minho, ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Cintia Chamorro-Petronacci
- Universidad de Santiago de Compostela, Facultad de Medicina y Odontología, Unidad de Medicina Oral, Cirugía Oral e Implantología, Grupo MedOralRes, Santiago de Compostela, España
- Universidad de Santiago de Compostela, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Grupo ORALRES, Santiago de Compostela, España
| | - Mario Pérez-Sayáns
- Universidad de Santiago de Compostela, Facultad de Medicina y Odontología, Unidad de Medicina Oral, Cirugía Oral e Implantología, Grupo MedOralRes, Santiago de Compostela, España
- Universidad de Santiago de Compostela, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Grupo ORALRES, Santiago de Compostela, España
| | - José Suárez Peñaranda
- Universidad de Santiago de Compostela, Facultad de Medicina y Odontología, Unidad de Medicina Oral, Cirugía Oral e Implantología, Grupo MedOralRes, Santiago de Compostela, España
- Universidad de Santiago de Compostela, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Grupo ORALRES, Santiago de Compostela, España
| | - Adhemar Longatto-Filho
- University of Minho, School of Medicine, Life and Health Sciences Research Institute (ICVS), Braga, Portugal
- University of Minho, ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
- Universidade Estadual Paulista, Faculdade de Medicina, Laboratório de Investigação Médica (LIM 14), São Paulo, Brasil
- Hospital do Câncer de Barretos (Hospital de Amor), Centro de Pesquisa em Oncologia Molecular, São Paulo, Brasil
| | - Fátima Baltazar
- University of Minho, School of Medicine, Life and Health Sciences Research Institute (ICVS), Braga, Portugal
- University of Minho, ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Julieta Afonso
- University of Minho, School of Medicine, Life and Health Sciences Research Institute (ICVS), Braga, Portugal
- University of Minho, ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
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Buzzatto-Leite I, Afonso J, Silva-Vignato B, Coutinho L, Alvares L. Differential gene co-expression network analyses reveal novel molecules associated with transcriptional dysregulation of key biological processes in osteoarthritis knee cartilage. Osteoarthr Cartil Open 2022; 4:100316. [PMID: 36474801 PMCID: PMC9718204 DOI: 10.1016/j.ocarto.2022.100316] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 09/09/2022] [Accepted: 10/17/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES To compare co-expression networks of normal and osteoarthritis knee cartilage to uncover molecules associated with the transcriptional misregulation compromising biological processes (BPs) critical for cartilage homeostasis. DESIGN Normal and osteoarthritis human knee cartilage RNA-seq GSE114007 dataset was obtained from the Gene Expression Omnibus database. Partial Correlation and Information Theory (PCIT) algorithm was used to build co-expression networks containing all nodes connecting to at least one differentially expressed gene (DEG) in normal and osteoarthritis networks. Hub and hub centrality genes were used to perform functional enrichment analysis. Enriched BPs known to be associated with both healthy and diseased cartilage were compared in depth. RESULTS Differential co-expression network analyses allowed the identification of DDX43 and USP42 as exclusively co-expressed with DEGs in normal and osteoarthritis networks, respectively. The top hub and hub centrality genes of these networks were HIST1H3A and SNHG12 (normal) and TAF9B and OTUD1 (osteoarthritis). Enrichment analysis revealed several shared BPs between the contrasting groups, which are well-known in osteoarthritis pathogenesis. Protein-protein interaction network analysis for these BPs showed a global down-regulation of transcription factors in osteoarthritis. Specific transcription factors were identified as pleiotropic mediators in articular cartilage maintenance since they take part in several BPs. In addition, chromatin organisation and modification proteins were found relevant for osteoarthritis development. CONCLUSION Differential gene co-expression analysis allowed the identification of novel and high priority therapeutic candidate genes that may drive modifications in the transcriptional "status" of cartilage in osteoarthritis.
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Affiliation(s)
- I. Buzzatto-Leite
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - J. Afonso
- Department of Animal Science, College of Agriculture “Luiz de Queiroz”, University of São Paulo (ESALQ/USP), Piracicaba, Brazil
| | - B. Silva-Vignato
- Department of Animal Science, College of Agriculture “Luiz de Queiroz”, University of São Paulo (ESALQ/USP), Piracicaba, Brazil
| | - L.L. Coutinho
- Department of Animal Science, College of Agriculture “Luiz de Queiroz”, University of São Paulo (ESALQ/USP), Piracicaba, Brazil
| | - L.E. Alvares
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil,Corresponding author. Department of Biochemistry and Tissue Biology, University of Campinas – UNICAMP, Rua Monteiro Lobato 255, Cx. Postal 6109, CEP 13083-862, Campinas, SP, Brazil.
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Saraiva MM, Spindler L, Fathallah N, Beaussier H, Mamma C, Quesnée M, Ribeiro T, Afonso J, Carvalho M, Moura R, Andrade P, Cardoso H, Adam J, Ferreira J, Macedo G, de Parades V. Artificial intelligence and high-resolution anoscopy: automatic identification of anal squamous cell carcinoma precursors using a convolutional neural network. Tech Coloproctol 2022; 26:893-900. [DOI: 10.1007/s10151-022-02684-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
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Cardoso TF, Bruscadin JJ, Afonso J, Petrini J, Andrade BGN, de Oliveira PSN, Malheiros JM, Rocha MIP, Zerlotini A, Ferraz JBS, Mourão GB, Coutinho LL, Regitano LCA. EEF1A1 transcription cofactor gene polymorphism is associated with muscle gene expression and residual feed intake in Nelore cattle. Mamm Genome 2022; 33:619-628. [PMID: 35816191 DOI: 10.1007/s00335-022-09959-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 06/22/2022] [Indexed: 12/01/2022]
Abstract
Cis-acting effects of noncoding variants on gene expression and regulatory molecules constitute a significant factor for phenotypic variation in complex traits. To provide new insights into the impacts of single-nucleotide polymorphisms (SNPs) on transcription factors (TFs) and transcription cofactors (TcoF) coding genes, we carried out a multi-omic analysis to identify cis-regulatory effects of SNPs on these genes' expression in muscle and describe their association with feed efficiency-related traits in Nelore cattle. As a result, we identified one SNP, the rs137256008C > T, predicted to impact the EEF1A1 gene expression (β = 3.02; P-value = 3.51E-03) and the residual feed intake trait (β = - 3.47; P-value = 0.02). This SNP was predicted to modify transcription factor sites and overlaps with several QTL for feed efficiency traits. In addition, co-expression network analyses showed that animals containing the T allele of the rs137256008 SNP may be triggering changes in the gene network. Therefore, our analyses reinforce and contribute to a better understanding of the biological mechanisms underlying gene expression control of feed efficiency traits in bovines. The cis-regulatory SNP can be used as biomarker for feed efficiency in Nelore cattle.
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Affiliation(s)
- T F Cardoso
- Embrapa Southeast Livestock, São Carlos, SP, Brazil
| | - J J Bruscadin
- Program on Evolutionary Genetics and Molecular Biology, Federal University of São Carlos, São Carlos, SP, Brazil
| | - J Afonso
- Embrapa Southeast Livestock, São Carlos, SP, Brazil
| | - J Petrini
- Department of Animal Science, "Luiz de Queiroz" College of Agriculture, University of São Paulo/ESALQ, Piracicaba, SP, Brazil
| | - B G N Andrade
- Computer Science Department, Munster Technological University, MTU/ADAPT, Cork, Ireland
| | - P S N de Oliveira
- Program on Evolutionary Genetics and Molecular Biology, Federal University of São Carlos, São Carlos, SP, Brazil
| | - J M Malheiros
- Federal University of Latin American Integration, Foz do Iguaçu, Paraná, Brazil
| | - M I P Rocha
- Program on Evolutionary Genetics and Molecular Biology, Federal University of São Carlos, São Carlos, SP, Brazil
| | - A Zerlotini
- Embrapa Agricultural Informatics, Campinas, SP, Brazil
| | - J B S Ferraz
- Department of Veterinary Medicine, University of São Paulo/FZEA, Pirassununga, Brazil
| | - G B Mourão
- Department of Animal Science, "Luiz de Queiroz" College of Agriculture, University of São Paulo/ESALQ, Piracicaba, SP, Brazil
| | - L L Coutinho
- Department of Animal Science, "Luiz de Queiroz" College of Agriculture, University of São Paulo/ESALQ, Piracicaba, SP, Brazil
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Silva A, Antunes B, Batista A, Pinto-Ribeiro F, Baltazar F, Afonso J. In Vivo Anticancer Activity of AZD3965: A Systematic Review. Molecules 2021; 27:molecules27010181. [PMID: 35011413 PMCID: PMC8746498 DOI: 10.3390/molecules27010181] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/20/2022]
Abstract
Proliferating cancer cells have high energy demands, which is mainly obtained through glycolysis. The transmembrane trafficking of lactate, a major metabolite produced by glycolytic cancer cells, relies on monocarboxylate transporters (MCTs). MCT1 optimally imports lactate, although it can work bidirectionally, and its activity has been linked to cancer aggressiveness and poor outcomes. AZD3965, a specific MCT1 inhibitor, was tested both in vitro and in vivo, with encouraging results; a phase I clinical trial has already been undertaken. Thus, analysis of the experimental evidence using AZD3965 in different cancer types could give valuable information for its clinical use. This systematic review aimed to assess the in vivo anticancer activity of AZD3965 either alone (monotherapy) or with other interventions (combination therapy). Study search was performed in nine different databases using the keywords “AZD3965 in vivo” as search terms. The results show that AZD3965 successfully decreased tumor growth and promoted intracellular lactate accumulation, which confirmed its effectiveness, especially in combined therapy. These results support the setup of clinical trials, but other important findings, namely AZD3965 enhanced activity when given in combination with other therapies, or MCT4-induced treatment resistance, should be further considered in the clinical trial design to improve therapy response.
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Affiliation(s)
- Ana Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
| | - Beatriz Antunes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
| | - Alberta Batista
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
- Correspondence: (F.B.); (J.A.)
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (A.S.); (B.A.); (A.B.); (F.P.-R.)
- ICVS/3Bs-PT Government Associate Laboratory, 4805-017 Guimarães, Portugal
- Correspondence: (F.B.); (J.A.)
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Cepeda Martins AR, Di Maria S, Afonso J, Pereira M, Pereira J, Vaz P. Assessment of the uterine dose in digital mammography and digital breast tomosynthesis. Radiography (Lond) 2021; 28:333-339. [PMID: 34565679 DOI: 10.1016/j.radi.2021.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/27/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Digital Mammography (DM-2D) and more recently Digital Breast Tomosynthesis (DBT), are two of the most effective imaging modalities for breast cancer detection, often used in screening programmes. It may happen that exams using these two imaging modalities are inadvertently performed to pregnant women. The objective of this study is to assess the dose in the uterus due to DM-2D and DBT exams, according to two main irradiation scenarios: in the 1st scenario the exposure parameters were pre-selected directly by the imaging system, while in the 2nd scenario, the maximum exposure parameters were chosen. METHODS The mammography equipment used was a Siemens Mammomat Inspiration. A physical anthropomorphic phantom, PMMA plates (simulating a breast thickness of 6 cm) and thermoluminescent dosimeters (TLDs) were used to measure entrance air kerma values on the phantom's breast and abdomen in order to successively estimate the mean glandular dose (MGD) and the dose in the uterus. For the two irradiation scenarios chosen, two-breast imaging modalities were selected: 1) DBT in Cranio-Caudal (CC) view (with 28 kV and 160 mAs as exposure parameters), 2) DBT and DM in Medio Lateral-Oblique (MLO) and CC views (with 34 kV and 250 mAs as exposure parameters). RESULTS In the 1st scenario, the TLD measurements did not detect significant dose values in the abdomen whereas the MGD estimated using the D.R. Dance model was in close agreement with data available in the literature. In the 2nd scenario, there was no significant difference in MGD estimation between the different views, whereas the air kerma values in the abdomen (in DBT mode, CC and MLO) were 0.049 mGy and 0.004 mGy respectively. In CC DM-2D mode the abdomen air kerma value was 0.026 mGy, with no significant detected value in MLO view. CONCLUSIONS For the dose in the uterus, the obtained values seem to indicate that DM-2D and DBT examinations inadvertently performed during pregnancy do not pose a significant radiological risk, even considering the case of overexposure in both breasts. IMPLICATIONS FOR PRACTICE The accurate knowledge of the doses in DM-2D and DBT will contribute to raise the awareness among medical practitioners involved in breast imaging empowering them to provide accurate information about dose levels in the uterus, improving their radiation risk communication skills and consequently helping to reduce the anxiety of pregnant women undergoing this type of examinations.
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Affiliation(s)
- A R Cepeda Martins
- Inspeção Geral da Agricultura, do Mar, do Ambiente, e do Ordenamento do Territorio (IGAMOT), Seção Radiações Ionizantes, Rua de O Seculo, N.51, 1200-433, Lisbon, Portugal
| | - S Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Campus Tecnológico e Nuclear, Estrada Nacional 10, km 139,7, 2695-066, Bobadela LRS, Portugal.
| | - J Afonso
- Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - M Pereira
- Agência Portuguesa do Ambiente, Departamento de Emergências e Proteção Radiológica, Divisão de Autorização e Segurança Nuclear, Rua da Murgueira 9 - Zambujal - Alfragide, 2610-124, Amadora, Portugal
| | - J Pereira
- Agência Portuguesa do Ambiente, Departamento de Emergências e Proteção Radiológica, Divisão de Autorização e Segurança Nuclear, Rua da Murgueira 9 - Zambujal - Alfragide, 2610-124, Amadora, Portugal
| | - P Vaz
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Campus Tecnológico e Nuclear, Estrada Nacional 10, km 139,7, 2695-066, Bobadela LRS, Portugal
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Saraiva MM, Ferreira JPS, Cardoso H, Afonso J, Ribeiro T, Andrade P, Parente MPL, Jorge RN, Macedo G. Artificial intelligence and colon capsule endoscopy: development of an automated diagnostic system of protruding lesions in colon capsule endoscopy. Tech Coloproctol 2021; 25:1243-1248. [PMID: 34499277 DOI: 10.1007/s10151-021-02517-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/30/2021] [Accepted: 08/26/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Colon capsule endoscopy (CCE) is a minimally invasive alternative for patients unwilling to undergo conventional colonoscopy, or for whom the latter exam is contraindicated. This is particularly important in the setting of colorectal cancer screening. Nevertheless, these exams produce large numbers of images, and reading them is a monotonous and time-consuming task, with the risk of overlooking important lesions. The development of automated tools based on artificial intelligence (AI) technology may improve some of the drawbacks of this diagnostic instrument. METHODS A database of CCE images was used for development of a Convolutional Neural Network (CNN) model. This database included anonymized images of patients with protruding lesions in the colon or patients with normal colonic mucosa or with other pathologic findings. A total of 3,387,259 frames from 24 CCE exams were retrospectively reviewed. For CNN development, 3640 images (860 protruding lesions and 2780 with normal mucosa or other findings) were ultimately extracted. Training and validation datasets were constructed for the development and testing of the CNN. RESULTS The CNN detected protruding lesions with a sensitivity, specificity, positive and negative predictive values of 90.7, 92.6, 79.2 and 96.9%, respectively. The area under the receiver operating characteristic curve for detection of protruding lesions was 0.97. CONCLUSIONS The deep learning algorithm we developed is capable of accurately detecting protruding lesions. The application of AI technology to CCE may increase its diagnostic accuracy and acceptance for screening of colorectal neoplasia.
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Affiliation(s)
- M M Saraiva
- Department of Gastroenterology, São João University Hospital, Porto, Portugal.
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal.
- Faculty of Medicine of the University of Porto, Porto, Portugal.
- , Rua Oliveira Martins 104, 4200-427, Porto, Portugal.
| | - J P S Ferreira
- Department of Mechanical Engineering, Faculty of Engineering of the University of Porto, Porto, Portugal
- INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering, Porto, Portugal
| | - H Cardoso
- Department of Gastroenterology, São João University Hospital, Porto, Portugal
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal
- Faculty of Medicine of the University of Porto, Porto, Portugal
| | - J Afonso
- Department of Gastroenterology, São João University Hospital, Porto, Portugal
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal
| | - T Ribeiro
- Department of Gastroenterology, São João University Hospital, Porto, Portugal
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal
| | - P Andrade
- Department of Gastroenterology, São João University Hospital, Porto, Portugal
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal
- Faculty of Medicine of the University of Porto, Porto, Portugal
| | - M P L Parente
- Department of Mechanical Engineering, Faculty of Engineering of the University of Porto, Porto, Portugal
- INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering, Porto, Portugal
| | - R N Jorge
- Department of Mechanical Engineering, Faculty of Engineering of the University of Porto, Porto, Portugal
- INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering, Porto, Portugal
| | - G Macedo
- Department of Gastroenterology, São João University Hospital, Porto, Portugal
- WGO Gastroenterology and Hepatology Training Center, Porto, Portugal
- Faculty of Medicine of the University of Porto, Porto, Portugal
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Baltazar F, Afonso J, Costa M, Granja S. Lactate Beyond a Waste Metabolite: Metabolic Affairs and Signaling in Malignancy. Front Oncol 2020; 10:231. [PMID: 32257942 PMCID: PMC7093491 DOI: 10.3389/fonc.2020.00231] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/11/2020] [Indexed: 12/16/2022] Open
Abstract
To sustain their high proliferation rates, most cancer cells rely on glycolytic metabolism, with production of lactic acid. For many years, lactate was seen as a metabolic waste of glycolytic metabolism; however, recent evidence has revealed new roles of lactate in the tumor microenvironment, either as metabolic fuel or as a signaling molecule. Lactate plays a key role in the different models of metabolic crosstalk proposed in malignant tumors: among cancer cells displaying complementary metabolic phenotypes and between cancer cells and other tumor microenvironment associated cells, including endothelial cells, fibroblasts, and diverse immune cells. This cell metabolic symbiosis/slavery supports several cancer aggressiveness features, including increased angiogenesis, immunological escape, invasion, metastasis, and resistance to therapy. Lactate transport is mediated by the monocarboxylate transporter (MCT) family, while another large family of G protein-coupled receptors (GPCRs), not yet fully characterized in the cancer context, is involved in lactate/acidosis signaling. In this mini-review, we will focus on the role of lactate in the tumor microenvironment, from metabolic affairs to signaling, including the function of lactate in the cancer-cancer and cancer-stromal shuttles, as well as a signaling oncometabolite. We will also review the prognostic value of lactate metabolism and therapeutic approaches designed to target lactate production and transport.
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Affiliation(s)
- Fátima Baltazar
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Guimarães, Portugal
| | - Julieta Afonso
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Guimarães, Portugal
| | - Marta Costa
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Guimarães, Portugal
| | - Sara Granja
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Guimarães, Portugal
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Pereira-Nunes A, Afonso J, Granja S, Baltazar F. Lactate and Lactate Transporters as Key Players in the Maintenance of the Warburg Effect. Adv Exp Med Biol 2020; 1219:51-74. [PMID: 32130693 DOI: 10.1007/978-3-030-34025-4_3] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Reprogramming of energy metabolism is a key hallmark of cancer. Most cancer cells display a glycolytic phenotype, with increased glucose consumption and glycolysis rates, and production of lactate as the end product, independently of oxygen concentrations. This phenomenon, known as "Warburg Effect", provides several survival advantages to cancer cells and modulates the metabolism and function of neighbour cells in the tumour microenvironment. However, due to the presence of metabolic heterogeneity within a tumour, cancer cells can also display an oxidative phenotype, and corruptible cells from the microenvironment become glycolytic, cooperating with oxidative cancer cells to boost tumour growth. This phenomenon is known as "Reverse Warburg Effect". In either way, lactate is a key mediator in the metabolic crosstalk between cancer cells and the microenvironment, and lactate transporters are expressed differentially by existing cell populations, to support this crosstalk.In this review, we will focus on lactate and on lactate transporters in distinct cells of the tumour microenvironment, aiming at a better understanding of their role in the acquisition and maintenance of the direct/reverse "Warburg effect" phenotype, which modulate cancer progression.
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Affiliation(s)
- Andreia Pereira-Nunes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sara Granja
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Magro F, Lopes S, Silva M, Coelho R, Portela F, Branquinho D, Correia L, Fernandes S, Cravo M, Caldeira P, Sousa HT, Patita M, Lago P, Ramos J, Afonso J, Redondo I, Machado P, Cornillie F, Lopes J, Carneiro F. Low Golimumab Trough Levels at Week 6 Are Associated With Poor Clinical, Endoscopic and Histological Outcomes in Ulcerative Colitis Patients: Pharmacokinetic and Pharmacodynamic Sub-analysis of the Evolution Study. J Crohns Colitis 2019; 13:1387-1393. [PMID: 30989180 DOI: 10.1093/ecco-jcc/jjz071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Golimumab has an established exposure-response relationship in patients with ulcerative colitis [UC]. However, the association of serum golimumab trough levels [TL] with objective markers of disease activity, such as endoscopic and histological activity scores and concentrations of biomarkers, remains less understood. This report describes the relationship of serum golimumab TL at the end of the induction period [Week 6] with clinical, endoscopic, histological, and biomarker parameters. METHODS This was an open-label, uncontrolled, prospective and interventional study. Moderate to severely active UC patients naïve to biologic therapy were treated with golimumab. Serum golimumab TL and faecal calprotectin levels were measured at baseline [Week 0 of induction] and Week 6. RESULTS A total of 34 patients completed the induction phase [Week 6] and were included in this analysis. Overall, 47.1% and 14.7% of patients achieved clinical response and remission with significantly higher serum golimumab TL in patients with early response or remission [3.7 μg/mL vs 1.3 μg/mL, p = 0.0013; and 3.1 μg/mL vs 1.7 μg/mL, p = 0.0164, respectively]. In addition, golimumab TL were significantly higher in patients achieving histological remission [4.2 μg/mL vs 1.7 μg/mL, p = 0.0049]. Week 6 golimumab TL were inversely correlated with the total Mayo score [rs = -0.546; p = 0.0008], the Mayo endoscopic subscore [rs = -0.381; p = 0.0262], the Geboes histological activity score [rs = -0.464; p = 0.0057], and faecal calprotectin levels [rs = -0.497; p = 0.0044]. CONCLUSIONS A higher early exposure to golimumab is associated with a better objective response in active UC patients and appears to drive the outcome at Week 6.
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Affiliation(s)
- F Magro
- Centro Hospitalar São João, Departamento de Gastrenterologia, Porto, Portugal.,Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - S Lopes
- Centro Hospitalar São João, Departamento de Gastrenterologia, Porto, Portugal
| | - M Silva
- Centro Hospitalar São João, Departamento de Gastrenterologia, Porto, Portugal
| | - R Coelho
- Centro Hospitalar São João, Departamento de Gastrenterologia, Porto, Portugal
| | - F Portela
- Centro Hospitalar Universitário de Coimbra, Departamento de Gastrenterologia, Coimbra, Portugal
| | - D Branquinho
- Centro Hospitalar Universitário de Coimbra, Departamento de Gastrenterologia, Coimbra, Portugal
| | - L Correia
- Centro Hospitalar Lisboa Norte, Departamento de Gastrenterologia, Lisboa, Portugal
| | - S Fernandes
- Centro Hospitalar Lisboa Norte, Departamento de Gastrenterologia, Lisboa, Portugal
| | - M Cravo
- Hospital Beatriz Ângelo, Departamento de Gastrenterologia, Loures, Portugal
| | - P Caldeira
- Centro Hospitalar Universitário do Algarve, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, Algarve Biomedical Centre, Universidade do Algarve, Faro, Portugal
| | - H T Sousa
- Centro Hospitalar Universitário do Algarve, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, Algarve Biomedical Centre, Universidade do Algarve, Faro, Portugal
| | - M Patita
- Hospital Garcia de Orta, Departamento de Gastrenterologia, Almada, Portugal
| | - P Lago
- Centro Hospitalar do Porto, Departamento de Gastrenterologia, Porto, Portugal
| | - J Ramos
- Centro Hospitalar Lisboa Central, Departamento de Gastrenterologia, Lisboa, Portugal
| | - J Afonso
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - I Redondo
- MSD Portugal, Medical Affairs, Paço de Arcos, Portugal
| | - P Machado
- MSD Portugal, Medical Affairs, Paço de Arcos, Portugal
| | | | - J Lopes
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - F Carneiro
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto [Ipatimup], i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
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Busto SA, Varela V, Fernandez N, Firvida X, Santome L, Afonso J, Azpiarte C, De Dios Alvarez N, Garcia J, Campos B, Areses M, Pereiro D, Lazaro M. EP1.14-15 Real World Clinical Experience of the Galician Lung Cancer Group: Afatinib in Patients with EGFR Positive Mutation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2300] [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: 11/24/2022]
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Laporta L, Afonso J, Mesquita I. The need for weighting indirect connections between game variables: Social Network Analysis and eigenvector centrality applied to high-level men’s volleyball. INT J PERF ANAL SPOR 2018. [DOI: 10.1080/24748668.2018.1553094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- L. Laporta
- Centre for Research, Formation, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal
| | - J. Afonso
- Centre for Research, Formation, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal
| | - I. Mesquita
- Centre for Research, Formation, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal
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Cancelliere L, Li A, Marques R, Fernandes G, Sermer C, Kumar K, Afonso J, Girão M, Lemos N. Superior Gluteal Vein (SGV) Syndrome: An Intrapelvic Cause of Sciatica. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.177] [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: 10/28/2022]
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Magro F, Rocha C, Vieira AI, Sousa HT, Rosa I, Lopes S, Carvalho J, Dias CC, Afonso J. The performance of Remicade®-optimized quantification assays in the assessment of Flixabi® levels. Therap Adv Gastroenterol 2018; 11:1756284818796956. [PMID: 30263065 PMCID: PMC6153527 DOI: 10.1177/1756284818796956] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/09/2018] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The advent of Remicade® biosimilars, Remsima®, Inflectra® and, more recently, Flixabi®, has brought along the potential to decrease the costs associated with this therapy, therefore increasing its access to a larger group of patients. However, and in order to assure a soft transition, one must make sure the assays and algorithms previously developed and optimized for Remicade perform equally well with its biosimilars. This study aimed to: (a) validate the utilization of Remicade-optimized therapeutic drug monitoring assays for the quantification of Flixabi; and (b) determine the existence of Remicade, Remsima and Flixabi cross-immunogenicity. METHODS Healthy donors' sera spiked with Remicade, Remsima and Flixabi were quantified using three different Remicade-quantification assays, and the reactivity of anti-Remicade and anti-Remsima sera to Remicade and to its biosimilars was assessed. RESULTS The results show that all tested Remicade-infliximab-optimized assays measure Flixabi as accurately as they measure Remicade and Remsima: the intraclass correlation coefficients between theoretical and measured concentrations varied from 0.920 to 0.990. Moreover, the interassay agreement values for the same compounds were high (intraclass correlation coefficients varied from 0.936 to 0.995). Finally, the anti-Remicade and anti-Remsima sera reacted to the different drugs in a similar fashion. CONCLUSIONS The tested assays can be used to monitor Flixabi levels. Moreover, Remicade, Remsima and Flixabi were shown to have a high cross-immunogenicity, which supports their high similarity but prevents their switching in nonresponders with antidrug antibodies.
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Affiliation(s)
| | - C. Rocha
- Department of Biomedicine, University of Porto,
Porto, Portugal,Faculty of Medicine, University of Lisbon,
Lisbon, Portugal
| | - A. I. Vieira
- Department of Gastroenterology, Hospital Garcia
de Orta, Almada, Portugal
| | - H. T. Sousa
- Gastroenterology Department, Centro Hospitalar
do Algarve, Portimão, Portugal,Biomedical Sciences and Medicine Department,
University of Algarve, Faro, Portugal,Algarve Biomedical Centre, University of
Algarve, Faro, Portugal
| | - I. Rosa
- Gastroenterology Department, Instituto
Português de Oncologia de Lisboa, Lisboa, Portugal
| | - S. Lopes
- Gastroenterology Department, Centro Hospitalar
São João, Porto, Portugal
| | - J. Carvalho
- Department of Gastroenterology and Hepatology,
Centro Hospitalar de Gaia, Gaia, Portugal
| | - C. C. Dias
- Health Information and Decision Sciences
Department, University of Porto, Porto, Portugal,Centre for Health Technology and Services
Research, Porto, Portugal
| | - J. Afonso
- Department of Biomedicine, University of Porto,
Porto, Portugal,Centre for Drug Discovery and Innovative
Medicines, University of Porto, Porto, Portugal,MedInUP, Centre for Drug Discovery an
Innovative Medicines, Porto, Portugal
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Rodrigues M, Di Maria S, Baptista M, Belchior A, Afonso J, Venâncio J, Vaz P. Influence of X-ray scatter radiation on image quality in Digital Breast Tomosynthesis (DBT). Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.12.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Estevinho MM, Afonso J, Rosa I, Lago P, Trindade E, Correia L, Dias CC, Magro F. Levels of 6-thioguanine nucleotides and clinical remission in inflammatory bowel disease - A systematic review and meta-analysis: PS083. Porto Biomed J 2017; 2:198-199. [PMID: 32258666 DOI: 10.1016/j.pbj.2017.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- M M Estevinho
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Portugal
| | - J Afonso
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Portugal
| | - I Rosa
- Gastroenterology Department, Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - P Lago
- Gastroenterology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - E Trindade
- Department of Pediatrics, Centro Hospitalar São João, Porto, Portugal
| | - L Correia
- Department of Gastroenterology and Hepatology, Hospital de Santa Maria, University of Lisbon, Lisbon, Portugal
| | - C C Dias
- Department of Community Medicine, Information and Decision in Health, Faculty of Medicine of the University of Porto, Portugal; CINTESIS - Centre for Health Technology and Services Research, Porto, Portugal
| | - F Magro
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Portugal.,Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal
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Affiliation(s)
- J. Afonso
- University of Porto, Faculty of Sport Sciences and Physical Education
| | - I. Mesquita
- University of Porto, Faculty of Sport Sciences and Physical Education
| | - J. M. Palao
- Catholic University of St. Anthony, Faculty of Health, Physical Activity and Sport
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Magro F, Lopes SI, Lopes J, Portela F, Cotter J, Lopes S, Moreira MJ, Lago P, Peixe P, Albuquerque A, Rodrigues S, Silva MR, Monteiro P, Lopes C, Monteiro L, Macedo G, Veloso L, Camila C, Afonso J, Geboes K, Carneiro F. Histological Outcomes and Predictive Value of Faecal Markers in Moderately to Severely Active Ulcerative Colitis Patients Receiving Infliximab. J Crohns Colitis 2016; 10:1407-1416. [PMID: 27226417 DOI: 10.1093/ecco-jcc/jjw112] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS Histological healing has emerged as a promising therapeutic goal in ulcerative colitis. This is especially important in the context of biological therapies. The objectives of the present study were to investigate the ability of infliximab to induce histological remission in ulcerative colitis [UC] patients and to explore the utility of faecal calprotectin and lactoferrin in predicting histological activity. METHODS Multi-centre, single-cohort, open-label, 52-week trial including moderately to severely biological-naïve UC patients receiving intravenous infliximab [5mg/kg]. The primary outcome was the proportion of patients with histological remission [Geboes index ≤ 3.0] after 8 weeks of treatment, scored by two independent pathologists. RESULTS Twenty patients were included. The rate of histological remission increased from 5% at baseline to 15% and 35% at Week 8 and Week 52, respectively. At Week 8, 40% of patients were in clinical remission [Mayo ≤ 2] and 45% achieved mucosal healing [Mayo endoscopy subscore 0-1]. At Week 52, 25% of patients had clinical, endoscopic and histological remission. Faecal calprotectin and lactoferrin showed the highest correlation with histological activity at Week 8 (area under the curve [AUC] 94%, p = 0.017; and 96%, p = 0.013, respectively) and both markers revealed an excellent positive predictive value for this outcome at this time point [100%, p = 0.017; and 94%, p = 0.013, respectively]. CONCLUSIONS Infliximab was able to induce histological remission. There was a good agreement between histology and faecal biomarkers. Faecal calprotectin and lactoferrin were good predictors of histological remission. Our data support inclusion of histology as a treatment target complementary to endoscopy in clinical trials when evaluating therapeutic response in UC.
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Affiliation(s)
- Fernando Magro
- Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal .,Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Susana Isabel Lopes
- Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Joanne Lopes
- Department of Pathology, Centro Hospitalar São João, Porto, Portugal
| | - Francisco Portela
- Department of Gastroenterology, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - José Cotter
- Department of Gastroenterology, Centro Hospitalar do Alto Ave, Guimarães, Portugal
| | - Sandra Lopes
- Department of Gastroenterology, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - Maria João Moreira
- Department of Gastroenterology, Centro Hospitalar do Alto Ave, Guimarães, Portugal
| | - Paula Lago
- Department of Gastroenterology, Centro Hospitalar do Porto, Porto, Portugal
| | - Paula Peixe
- Department of Gastroenterology, Centro Hospitalar Lisboa Oriental Portugal, Lisboa, Portugal
| | - Andreia Albuquerque
- Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Susana Rodrigues
- Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Mário Rui Silva
- Department of Pathology, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - Pedro Monteiro
- Department of Pathology, Centro Hospitalar do Alto Ave, Guimarães, Portugal
| | - Castro Lopes
- Department of Pathology, Centro Hospitalar do Porto, Porto, Portugal
| | - Lucília Monteiro
- Department of Pathology, Centro Hospitalar Lisboa Oriental Portugal, Lisboa, Portugal
| | - Guilherme Macedo
- Department of Gastroenterology, Faculty of Medicine, Centro Hospitalar São João, Porto, Portugal
| | - Luís Veloso
- Clinical Data Unit, Eurotrials Scientific Consultants, Lisboa, Portugal
| | - Claudia Camila
- CIDES Department of Health Information and Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Porto, Portugal
| | - J Afonso
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal.,MedInUP Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
| | - Karel Geboes
- Department of Pathology, University Hospital of KU Leuven and UZ Gent, Leuven, Belgium
| | - Fátima Carneiro
- Department of Pathology, Centro Hospitalar São João, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto [Ipatimup], University of Porto, Porto, Portugal
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Afonso J, Lopes S, Gonçalves R, Caldeira P, Lago P, Tavares de Sousa H, Ramos J, Gonçalves AR, Ministro P, Rosa I, Vieira AI, Dias CC, Magro F. Proactive therapeutic drug monitoring of infliximab: a comparative study of a new point-of-care quantitative test with two established ELISA assays. Aliment Pharmacol Ther 2016; 44:684-92. [PMID: 27507790 DOI: 10.1111/apt.13757] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 06/09/2016] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Therapeutic drug monitoring is a powerful strategy known to improve the clinical outcomes and to optimise the healthcare resources in the treatment of autoimmune diseases. Currently, most of the methods commercially available for the quantification of infliximab (IFX) are ELISA-based, with a turnaround time of approximately 8 h, and delaying the target dosage adjustment to the following infusion. AIM To validate the first point-of-care IFX quantification device available in the market - the Quantum Blue Infliximab assay (Buhlmann, Schonenbuch, Switzerland) - by comparing it with two well-established methods. METHODS The three methods were used to assay the IFX concentration of spiked samples and of the serum of 299 inflammatory bowel diseases (IBD) patients undergoing IFX therapy. RESULTS The point-of-care assay had an average IFX recovery of 92%, being the most precise among the tested methods. The Intraclass Correlation Coefficients of the point-of-care IFX assay vs. the two ELISA-based established methods were 0.889 and 0.939. Moreover, the accuracy of the point-of-care IFX compared with each of the two reference methods was 77% and 83%, and the kappa statistics revealed a substantial agreement (0.648 and 0.738). CONCLUSIONS The Quantum Blue IFX assay can successfully replace the commonly used ELISA-based IFX quantification kits. This point-of-care IFX assay is able to deliver the results within 15 min makes it ideal for an immediate target concentration adjusted dosing. Moreover, it is a user-friendly desktop device that does not require specific laboratory facilities or highly specialised personnel.
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Affiliation(s)
- J Afonso
- Department of Pharmacology and Therapeutics, University of Porto, Porto, Portugal.,MedInUP, Centre for Drug Discovery and Innovative Medicines, Porto, Portugal
| | - S Lopes
- Centro Hospitalar São João, Porto, Portugal
| | | | - P Caldeira
- Centro Hospitalar do Algarve, Faro, Portugal
| | - P Lago
- Centro Hospitalar do Porto, Porto, Portugal
| | - H Tavares de Sousa
- Centro Hospitalar do Algarve, Portimão, Portugal.,University of Algarve, Faro, Portugal
| | - J Ramos
- Centro Hospitalar de Lisboa, Lisboa, Portugal
| | | | - P Ministro
- Hospital de S. Teotónio, Viseu, Portugal
| | - I Rosa
- Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - A I Vieira
- Hospital Garcia de Orta, Almada, Portugal
| | - C C Dias
- Health Information and Decision Sciences Department, Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research, Porto, Portugal
| | - F Magro
- Department of Pharmacology and Therapeutics, University of Porto, Porto, Portugal.,MedInUP, Centre for Drug Discovery and Innovative Medicines, Porto, Portugal.,Centro Hospitalar São João, Porto, Portugal
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Buss CE, Tizioto PC, Oliveira PSN, Mudadu MA, Cesar ASM, Ventura RV, Afonso J, Lima AOD, Coutinho LL, Tullio RR, Regitano LCA. 0891 Genome-wide efficient mixed-model study for meat quality in Nellore cattle. J Anim Sci 2016. [DOI: 10.2527/jam2016-0891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Afonso J, Tizioto PC, Oliveira PSN, Diniz WJS, Lima AOD, Souza MMD, Rocha MIP, Silva JVD, Buss CE, Gromboni CF, Mourão GB, Nogueira AR, Coutinho LL, Regitano LCA. 0903 Differentially expressed genes in genetically divergent Nellore steers for calcium content in the Longissimus dorsi muscle. J Anim Sci 2016. [DOI: 10.2527/jam2016-0903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lima AOD, Oliveira PSN, Tizioto PC, Somavilla AL, Diniz WJS, Silva JVD, Andrade SCS, Boschiero C, Cesar ASM, Souza MM, Rocha MIP, Afonso J, Buss CE, Mudadu MA, Mourao GB, Coutinho LL, Regitano LCA. 0318 PRUNE2 gene has a potential effect on residual feed intake in Nellore cattle. J Anim Sci 2016. [DOI: 10.2527/jam2016-0318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Silva S, Afonso J, Guedes C, Gomes M, Santos V, Azevedo J, Dias-da-Silva A. Ewe whole body composition predicted in vivo by real-time ultrasonography and image analysis. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2016.01.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nikolaidis PT, Busko K, Afonso J, Chtourou H, Padulo J, Goudas K, Heller J. THE EFFECT OF MATURITY ON HEART RATE RESPONSES DURING TRAINING AND TESTING IN POSTPUBESCENT FEMALE VOLLEYBALL PLAYERS. ACTA ACUST UNITED AC 2016; 41:78-85. [PMID: 26859991 DOI: 10.7868/s0131164615060053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to examine the effect of maturity, assessed as difference between chronological age and age at peak height velocity, on heart rate (HR) responses to maximal and submaximal laboratory and field exercises. Twenty-eight postpubescent female volleyball players participated in the present study (age 13.8 (0.6) yr, body mass 62.5 (8.2) kg and height 1.73 (0.05) m; mean (standard deviation)). They were divided into two groups with regards to their maturation: less matured (LM) and more matured (MM). In laboratory, HR was recorded during 5 min rest, physical working capacity in heart rate 170 bpm, 3 min step test, 30 s Bosco test and Wingate anaerobic test (WAnT) were performed. In field, a 70 min training session (consisted by three parts: warm-up, 1 x 1 drills and team drills) was monitored and 20 m shuttle run endurance test was performed. There was significant difference between LM and MM groups over HR responses (%HR reserve, %HRR) to exercise training (F(2,21) = 6.08, p = 0.008, η2 = 0.37). There was a main effect of part session of exercise program on HR responses with the highest intensity recorded in 1 x 1 drills (-75% HRR) and the lowest in team drills (-60% HRR in LM and -65% HRR in MM). There was also a moderate effect of maturity on HR during cycling against 90 W and in the WAnT, and small effect on HR during cycling against 60 W, in the end of the step test, Bosco test and running endurance test, where the highest scores were recorded in LM. Based on the findings of the present study, it was concluded that maturity exerted an effect of small to moderate magnitude on H R responses in a laboratory setting and this should be taken into account by coaches and trainers when evaluating physiological characteristics.
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Afonso J, Santos LL, Morais A, Amaro T, Longatto-Filho A, Baltazar F. Metabolic coupling in urothelial bladder cancer compartments and its correlation to tumor aggressiveness. Cell Cycle 2015; 15:368-80. [PMID: 26636903 DOI: 10.1080/15384101.2015.1121329] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Monocarboxylate transporters (MCTs) are vital for intracellular pH homeostasis by extruding lactate from highly glycolytic cells. These molecules are key players of the metabolic reprogramming of cancer cells, and evidence indicates a potential contribution in urothelial bladder cancer (UBC) aggressiveness and chemoresistance. However, the specific role of MCTs in the metabolic compartmentalization within bladder tumors, namely their preponderance on the tumor stroma, remains to be elucidated. Thus, we evaluated the immunoexpression of MCTs in the different compartments of UBC tissue samples (n = 111), assessing the correlations among them and with the clinical and prognostic parameters. A significant decrease in positivity for MCT1 and MCT4 occurred from normoxic toward hypoxic regions. Significant associations were found between the expression of MCT4 in hypoxic tumor cells and in the tumor stroma. MCT1 staining in normoxic tumor areas, and MCT4 staining in hypoxic regions, in the tumor stroma and in the blood vessels were significantly associated with UBC aggressiveness. MCT4 concomitant positivity in hypoxic tumor cells and in the tumor stroma, as well as positivity in each of these regions concomitant with MCT1 positivity in normoxic tumor cells, was significantly associated with an unfavourable clinicopathological profile, and predicted lower overall survival rates among patients receiving platinum-based chemotherapy. Our results point to the existence of a multi-compartment metabolic model in UBC, providing evidence of a metabolic coupling between catabolic stromal and cancer cells' compartments, and the anabolic cancer cells. It is urgent to further explore the involvement of this metabolic coupling in UBC progression and chemoresistance.
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Affiliation(s)
- Julieta Afonso
- a Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal.,b ICVS/3B's - PT Government Associate Laboratory , Braga/Guimarães , Portugal
| | - Lúcio L Santos
- c Department of Surgical Oncology , Portuguese Institute of Oncology (IPO) , Porto , Portugal.,d Faculty of Health Sciences, University Fernando Pessoa (UFP) , Porto , Portugal
| | - António Morais
- e Department of Urology , Portuguese Institute of Oncology (IPO) , Porto , Portugal
| | - Teresina Amaro
- f Experimental Pathology and Therapeutics Research Center, Portuguese Institute of Oncology (IPO) , Porto , Portugal
| | - Adhemar Longatto-Filho
- a Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal.,b ICVS/3B's - PT Government Associate Laboratory , Braga/Guimarães , Portugal.,g Laboratory of Medical Investigation (LIM 14), Faculty of Medicine, São Paulo State University , São Paulo , Brazil.,h Molecular Oncology Research Center, Barretos Cancer Hospital , São Paulo , Brazil
| | - Fátima Baltazar
- a Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho , Braga , Portugal.,b ICVS/3B's - PT Government Associate Laboratory , Braga/Guimarães , Portugal
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Guedes-Martins L, Silva E, Gaio AR, Saraiva J, Soares AI, Afonso J, Macedo F, Almeida H. Fetal-maternal interface impedance parallels local NADPH oxidase related superoxide production. Redox Biol 2015; 5:114-123. [PMID: 25912167 PMCID: PMC4412968 DOI: 10.1016/j.redox.2015.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 04/14/2015] [Accepted: 04/17/2015] [Indexed: 12/19/2022] Open
Abstract
Blood flow assessment employing Doppler techniques is a useful procedure in pregnancy evaluation, as it may predict pregnancy disorders coursing with increased uterine vascular impedance, as pre-eclampsia. While the local causes are unknown, emphasis has been put on reactive oxygen species (ROS) excessive production. As NADPH oxidase (NOX) is a ROS generator, it is hypothesized that combining Doppler assessment with NOX activity might provide useful knowledge on placental bed disorders underlying mechanisms. A prospective longitudinal study was performed in 19 normal course, singleton pregnancies. Fetal aortic isthmus (AoI) and maternal uterine arteries (UtA) pulsatility index (PI) were recorded at two time points: 20-22 and 40-41 weeks, just before elective Cesarean section. In addition, placenta and placental bed biopsies were performed immediately after fetal extraction. NOX activity was evaluated using a dihydroethidium-based fluorescence method and associations to PI values were studied with Spearman correlations. A clustering of pregnancies coursing with higher and lower PI values was shown, which correlated strongly with placental bed NOX activity, but less consistently with placental tissue. The study provides evidence favoring that placental bed NOX activity parallels UtA PI enhancement and suggests that an excess in oxidation underlies the development of pregnancy disorders coursing with enhanced UtA impedance.
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Affiliation(s)
- L Guedes-Martins
- Department of Experimental Biology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, 4150-180 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-319 Porto, Portugal; Centro Hospitalar do Porto EPE, Departamento da Mulher e da Medicina Reprodutiva, Centro Hospitalar do Porto EPE, Largo Prof. Abel Salazar, 4099-001 Porto, Portugal.
| | - E Silva
- Department of Experimental Biology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, 4150-180 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-319 Porto, Portugal.
| | - A R Gaio
- Department of Mathematics, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; CMUP-Centre of Mathematics of the University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - J Saraiva
- Department of Experimental Biology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, 4150-180 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-319 Porto, Portugal; Centro Hospitalar do Porto EPE, Departamento da Mulher e da Medicina Reprodutiva, Centro Hospitalar do Porto EPE, Largo Prof. Abel Salazar, 4099-001 Porto, Portugal.
| | - A I Soares
- Department of Experimental Biology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, 4150-180 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-319 Porto, Portugal.
| | - J Afonso
- Department of Pharmacology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
| | - F Macedo
- Department of Cardiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
| | - H Almeida
- Department of Experimental Biology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, 4150-180 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-319 Porto, Portugal; Obstetrics-Gynecology, Hospital-CUF Porto, 4100 180 Porto, Portugal.
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Kagiyama N, Okura H, Kume T, Neishi Y, Hayashida A, Hirohata A, Yamamoto K, Yoshida K, Yang LT, Tsai W, Tsai S, Tsai Y, Liao I, Hsu C, Poorzand H, Mohamadzadeh Shabestari M, Vakilian F, Abasi Teshnizi M, Allahyari A, Narayanan SR, Jafar NS, Al Shamkhany WS, Rajappan AK, Janardhanan R, Patel K, Mizyed A, Thompson J, Rodrigues A, Afonso J, Cordovil A, Monaco C, Piveta R, Cordovil R, Fischer C, Vieira M, Lira E, Morhy S. Case-Based Session: Cases from Outside Europe: Friday 5 December 2014, 15:30-16:30 * Location: Agora. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu258] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Afonso J, Santos LL, Miranda-Gonçalves V, Morais A, Amaro T, Longatto-Filho A, Baltazar F. CD147 and MCT1-potential partners in bladder cancer aggressiveness and cisplatin resistance. Mol Carcinog 2014; 54:1451-66. [PMID: 25263481 DOI: 10.1002/mc.22222] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [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: 11/06/2013] [Revised: 07/04/2014] [Accepted: 08/05/2014] [Indexed: 11/08/2022]
Abstract
The relapsing and progressive nature of bladder tumors, and the heterogeneity in the response to cisplatin-containing regimens, are the major concerns in the care of urothelial bladder carcinoma (UBC) patients. The metabolic adaptations that alter the tumor microenvironment and thus contribute to chemoresistance have been poorly explored in UBC setting. We found significant associations between the immunoexpressions of the microenvironment-related molecules CD147, monocarboxylate transporters (MCTs) 1 and 4, CD44 and CAIX in tumor tissue sections from 114 UBC patients. The presence of MCT1 and/or MCT4 expressions was significantly associated with unfavorable clinicopathological parameters. The incidence of CD147 positive staining significantly increased with advancing stage, grade and type of lesion, and occurrence of lymphovascular invasion. Similar associations were observed when considering the concurrent expression of CD147 and MCT1. This expression profile lowered significantly the 5-year disease-free and overall survival rates. Moreover, when selecting patients who received platinum-based chemotherapy, the prognosis was significantly worse for those with MCT1 and CD147 positive tumors. CD147 specific silencing by small interfering RNAs (siRNAs) in UBC cells was accompanied by a decrease in MCT1 and MCT4 expressions and, importantly, an increase in chemosensitivity to cisplatin. Our results provide novel insights for the involvement of CD147 and MCTs in bladder cancer progression and resistance to cisplatin-based chemotherapy. We consider that the possible cooperative role of CD147 and MCT1 in determining cisplatin resistance should be further explored as a potential theranostics biomarker.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Lúcio L Santos
- Department of Surgical Oncology, Portuguese Institute of Oncology (IPO), Porto, Portugal.,Faculty of Health Sciences, University Fernando Pessoa (UFP), Porto, Portugal
| | - Vera Miranda-Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António Morais
- Department of Urology, Portuguese Institute of Oncology (IPO), Porto, Portugal
| | - Teresina Amaro
- Experimental Pathology and Therapeutics Research Center, Portuguese Institute of Oncology (IPO), Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Laboratory of Medical Investigation (LIM 14), Faculty of Medicine, São Paulo State University, São Paulo, Brazil.,Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Afonso J, Longatto-Filho A, DA Silva VM, Amaro T, Santos LL. Phospho-mTOR in non-tumour and tumour bladder urothelium: Pattern of expression and impact on urothelial bladder cancer patients. Oncol Lett 2014; 8:1447-1454. [PMID: 25202348 PMCID: PMC4156165 DOI: 10.3892/ol.2014.2392] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 06/24/2014] [Indexed: 12/28/2022] Open
Abstract
Urothelial bladder carcinoma (UBC) is heterogeneous in its pathology and clinical behaviour. Evaluation of prognostic and predictive biomarkers is necessary, in order to produce personalised treatment options. The present study used immunohistochemistry to evaluate UBC sections containing tumour and non-tumour areas from 76 patients, for the detection of p-mTOR, CD31 and D2-40 (blood and lymphatic vessels identification, respectively). Of the non-tumour and tumour sections, 36 and 20% were scored positive for p-mTOR expression, respectively. Immunoexpression was observed in umbrella cells from non-tumour urothelium, in all cell layers from non-muscle-invasive (NMI) tumours (including expression in superficial cells), and in spots of cells from muscle-invasive (MI) tumours. Positive expression decreased from non-tumour to tumour urothelium, and from pT1/pTis to pT3/pT4 tumours; however, the few pT3/pT4 positive cases had worse survival rates, with 5-year disease-free survival being significantly lower. Angiogenesis occurrence was impaired in pT3/pT4 tumours that did not express p-mTOR. In conclusion, p-mTOR expression in non-tumour umbrella cells is likely a reflection of their metabolic plasticity, and extension to the inner layers of the urothelium in NMI tumours is consistent with an enhanced malignant potential. The expression in cell spots in a few MI tumours and absence of expression in the remaining tumours is intriguing and requires further research. Additional studies regarding the up- and downstream effectors of the mTOR pathway should be conducted.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), School of Healh Sciences (ECS) University of Minho, Braga 4710-057, Portugal ; ICVS/3B's, PT Government Associate Laboratory, Braga 4710-057/Guimarães 4806-909, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), School of Healh Sciences (ECS) University of Minho, Braga 4710-057, Portugal ; ICVS/3B's, PT Government Associate Laboratory, Braga 4710-057/Guimarães 4806-909, Portugal ; Laboratory of Medical Investigation (LIM 14), Faculty of Medicine, São Paulo State University, São Paulo 01246-000, Brazil ; Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo 14784-400, Brazil
| | | | - Teresina Amaro
- Experimental Pathology and Therapeutics Research Center, Portuguese Institute of Oncology (IPO), Porto 4200-072, Portugal
| | - Lúcio L Santos
- Department of Surgical Oncology, Portuguese Institute of Oncology (IPO), Porto 4200-072, Portugal ; Faculty of Health Sciences, University Fernando Pessoa, Porto 4200-150, Portugal
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Chan JSD, Abdo S, Ghosh A, Alquier T, Chenier I, Filep JG, Ingelfinger JR, Zhang SL, Ross EA, Willenberg BJ, Oca-Cossio J, Clapp WL, Terada N, Abrahamson DR, Ellison GW, Matthews CE, Batich CD, Ihoriya C, Satoh M, Sasaki T, Kashihara N, Piwkowska A, Rogacka D, Angielski S, Jankowski M, Pontrelli P, Conserva F, Papale M, Accetturo M, Gigante M, Vocino G, Dipalma AM, Grandaliano G, Di Paolo S, Gesualdo L, Franzen S, Pihl L, Khan N, Gustafsson H, Palm F, Koszegi S, Hodrea J, Lenart L, Hosszu A, Wagner L, Vannay A, Tulassay T, Szabo A, Fekete A, Aoki R, Sekine F, Kikuchi K, Miyazaki S, Yamashita Y, Itoh Y, Kolling M, Park JK, Haller H, Thum T, Lorenzen J, Hirayama A, Yoh K, Ueda A, Itoh H, Owada S, Kokeny G, Szabo L, Fazekas K, Rosivall L, Mozes MM, Kim Y, Koh ES, Lim JH, Kim MY, Chang YS, Park CW, Kim Y, Kim HW, Kim MY, Lim JH, Chang YS, Park CW, Shin BC, Kim HL, Chung JH, Chan JS, Wu TC, Chen JW, Rogacka D, Piwkowska A, Angielski S, Jankowski M, Clotet S, Soler MJ, Rebull M, Pascual J, Riera M, Patinha D, Afonso J, Sousa T, Morato M, Albino-Teixeira A, Kim H, Min HS, Kang MJ, Kim JE, Lee JE, Kang YS, Cha DR, Jo YI, Seo EH, Kim JD, Lee SH, Jorge L, Silva KAS, Luiz RS, Rampaso RR, Lima W, Cunha TS, Schor N, Lee HJ, Park JY, Kim SK, Moon JY, Lee SH, Ihm CG, Lee TW, Jeong KH, Moon JY, Kim S, Park JY, Kim SY, Kim YG, Jeong KH, Lee SH, Ihm CG, Marques C, Mega C, Goncalves A, Rodrigues-Santos P, Teixeira-Lemos E, Teixeira F, Fontes Ribeiro C, Reis F, Fernandes R, Sutariya BK, Badgujar LB, Kshtriya AA, Saraf MN, Chiu CH, Lee WC, Chau YY, Lee LC, Lee CT, Chen JB, Dahan I, Nakhoul F, Thawho N, Ben-Itzhaq O, Levy AP, Conserva F, Pontrelli P, Accetturo M, Cordisco G, Fiorentino L, Federici M, Grandaliano G, Di Paolo S, Gesualdo L, Wystrychowski G, Havel PJ, Graham JL, Zukowska-Szczechowska E, Obuchowicz E, Psurek A, Grzeszczak W, Wystrychowski A, Clotet S, Soler MJ, Rebull M, Gimeno J, Pascual J, Riera M, Almeida BZD, Seraphim DCC, Punaro G, Nascimento M, Mouro M, Lanzoni VP, Lopes GS, Higa EMS, Roca-Ho H, Riera M, Marquez E, Pascual J, Soler MJ. DIABETES EXPERIMENTAL. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu149] [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: 11/13/2022] Open
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Efstathiou A, Pearson C, Farrah D, Rigopoulou D, Gracia-Carpio J, Verma A, Spoon HWW, Afonso J, Bernard-Salas J, Clements DL, Cooray A, Cormier D, Etxaluze M, Fischer J, Gonzalez-Alfonso E, Hurley P, Lebouteiller V, Oliver SJ, Rowan-Robinson M, Sturm E. Herschel observations and a model for IRAS 08572+3915: a candidate for the most luminous infrared galaxy in the local (z < 0.2) Universe. ACTA ACUST UNITED AC 2013. [DOI: 10.1093/mnrasl/slt131] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Guimarães J, Vieira-Coelho MA, Moura E, Afonso J, Rosas MJ, Vaz R, Garrett C. Urinary profile of catecholamines and metabolites in Parkinson patients with deep brain stimulation. Eur J Neurol 2013; 21:353-6. [DOI: 10.1111/ene.12161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 02/28/2013] [Indexed: 11/30/2022]
Affiliation(s)
- J. Guimarães
- Neurology Department; Hospital de São João; Porto Portugal
- Neurology and Neurosurgery Unit of Clinical Neurosciences and Mental Health Department, Faculty of Medicine, University of Porto; Porto Portugal
- Institute for Molecular and Cell Biology; University of Porto; Porto Portugal
| | - M. A. Vieira-Coelho
- Department of Pharmacology and Therapeutics, Faculty of Medicine; University of Porto; Porto Portugal
- Institute for Molecular and Cell Biology; University of Porto; Porto Portugal
| | - E. Moura
- Department of Pharmacology and Therapeutics, Faculty of Medicine; University of Porto; Porto Portugal
- Institute for Molecular and Cell Biology; University of Porto; Porto Portugal
| | - J. Afonso
- Department of Pharmacology and Therapeutics, Faculty of Medicine; University of Porto; Porto Portugal
| | - M. J. Rosas
- Neurology Department; Hospital de São João; Porto Portugal
| | - R. Vaz
- Neurology and Neurosurgery Unit of Clinical Neurosciences and Mental Health Department, Faculty of Medicine, University of Porto; Porto Portugal
- Department of Neurosurgery; Hospital de São João; Porto Portugal
| | - C. Garrett
- Neurology Department; Hospital de São João; Porto Portugal
- Neurology and Neurosurgery Unit of Clinical Neurosciences and Mental Health Department, Faculty of Medicine, University of Porto; Porto Portugal
- Institute for Molecular and Cell Biology; University of Porto; Porto Portugal
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Afonso J, Longatto-Filho A, Martinho O, Lobo F, Amaro T, Reis RM, Santos LL. Low RKIP expression associates with poor prognosis in bladder cancer patients. Virchows Arch 2013; 462:445-53. [PMID: 23462986 DOI: 10.1007/s00428-013-1388-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/23/2013] [Accepted: 02/20/2013] [Indexed: 10/27/2022]
Abstract
Urothelial bladder cancer (UBC) is a heterogeneous type of disease. It is urgent to screen biomarkers of tumour aggressiveness in order to clarify the clinical behaviour and to personalize therapy in UBC patients. Raf kinase inhibitory protein (RKIP) is a metastasis suppressor, and its downregulation is associated with metastatic events in an increasing number of solid tumours. We evaluated the clinical and prognostic significance of RKIP expression in patients with high risk of progression UBC. Using immunohistochemistry, we determined RKIP expression levels in a series of 81 patients with high-grade pT1/pTis or muscle-invasive UBC. Staining of CD31 and D2-40 was used to assess blood and lymphatic vessels, in order to distinguish between blood and lymphatic vessel invasion (LVI). We found that 90 % of pT1/pTis tumours, 94 % of non-muscle invasive papillary tumours and 76 % of the cases without LVI occurrence expressed RKIP in >10 % of cells. In this group, we observed a subgroup of tumours (42 %) in which the tumour centre was significantly more intensely stained than the invasion front. This heterogeneous pattern was observed in 63 % of the cases with LVI. Low RKIP expression was associated with poorer 5-year disease-free and overall survival rates, and remained as an independent prognostic factor for disease-free survival. Loss of RKIP expression may be an important prognostic factor for patients with high risk of progression bladder cancer.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute-ICVS, University of Minho, Braga, Portugal
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Sousa T, Oliveira S, Afonso J, Morato M, Patinha D, Fraga S, Carvalho F, Albino-Teixeira A. Role of H(2)O(2) in hypertension, renin-angiotensin system activation and renal medullary disfunction caused by angiotensin II. Br J Pharmacol 2012; 166:2386-401. [PMID: 22452317 DOI: 10.1111/j.1476-5381.2012.01957.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE Activation of the intrarenal renin-angiotensin system (RAS) and increased renal medullary hydrogen peroxide (H(2) O(2) ) contribute to hypertension. We examined whether H(2) O(2) mediated hypertension and intrarenal RAS activation induced by angiotensin II (Ang II). EXPERIMENTAL APPROACH Ang II (200 ng·kg(-1) ·min(-1) ) or saline were infused in Sprague Dawley rats from day 0 to day 14. Polyethylene glycol (PEG)-catalase (10 000 U·kg(-1) ·day(-1) ) was given to Ang II-treated rats, from day 7 to day 14. Systolic blood pressure was measured throughout the study. H(2) O(2) , angiotensin AT(1) receptor and Nox4 expression and nuclear factor-κB (NF-κB) activation were evaluated in the kidney. Plasma and urinary H(2) O(2) and angiotensinogen were also measured. KEY RESULTS Ang II increased H(2) O(2) , AT(1) receptor and Nox4 expression and NF-κB activation in the renal medulla, but not in the cortex. Ang II raised plasma and urinary H(2) O(2) levels, increased urinary angiotensinogen but reduced plasma angiotensinogen. PEG-catalase had a short-term antihypertensive effect and transiently suppressed urinary angiotensinogen. PEG-catalase decreased renal medullary expression of AT(1) receptors and Nox4 in Ang II-infused rats. Renal medullary NF-κB activation was correlated with local H(2) O(2) levels and urinary angiotensinogen excretion. Loss of antihypertensive efficacy was associated with an eightfold increase of plasma angiotensinogen. CONCLUSIONS AND IMPLICATIONS The renal medulla is a major target for Ang II-induced redox dysfunction. H(2) O(2) appears to be the key mediator enhancing intrarenal RAS activation and decreasing systemic RAS activity. The specific control of renal medullary H(2) O(2) levels may provide future grounds for the treatment of hypertension.
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Affiliation(s)
- T Sousa
- Departamento de Farmacologia e Terapêutica, Faculdade de Medicina, Universidade do Porto, Porto, Portugal.
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de Oliveira ATT, Reis RM, Afonso J, Martinho O, Matos D, Carvalho AL, Vazquez VL, Silva TB, Scapulatempo C, Saad SS, Longatto-Filho A. Lymphangiogenic VEGF-C and VEGFR-3 expression in genetically characterised gastrointestinal stromal tumours. Histol Histopathol 2012; 26:1499-507. [PMID: 21972089 DOI: 10.14670/hh-26.1499] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study aimed to assess the distribution of VEGF-C and VEGFR-3 expression in gastrointestinal stromal tumours (GISTs), and to analyse the value of lymphatic vessel density (LVD) in a tumour that is believed to preferentially metastasize through blood vessel conduits. A panel of immunohistochemical antibodies was used to evaluate 51 cases of genetically characterised GISTs: VEGF-C, VEGFR-3, D2-40 (for LVD assessment) and CD31 (for blood vessel density--BDV--assessment). The results were correlated with the clinical-pathological data. The large majority of cases (86.2%; 44/51) showed a mutation of the KIT gene, most of them (72.5%; 37/51) revealing mutations in exon 11. VEGFR-3 was predominantly expressed in KIT mutated GISTs (p=0.019). High LVD was correlated with the absence of metastasis (p=0.010) and high BVD showed a positive correlation with the occurrence of metastasis (p=0.049). The strong expression of VEGF-C and VEGFR-3 in GIST's cells was not correlated with the clinical parameters of aggressiveness, nor with high LVD.
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Affiliation(s)
- Antônio Talvane Torres de Oliveira
- Department of Digestive Surgery and Pathology and Center for Researcher Support, Barretos Cancer Hospital, Pio XII Foundation, Barretos, São Paulo, Brazil
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Afonso J, Longatto-Filho A, Baltazar F, Sousa N, Costa FE, Morais A, Amaro T, Lopes C, Santos LL. CD147 overexpression allows an accurate discrimination of bladder cancer patients' prognosis. Eur J Surg Oncol 2011; 37:811-7. [PMID: 21733655 DOI: 10.1016/j.ejso.2011.06.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 05/19/2011] [Accepted: 06/13/2011] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Urothelial bladder carcinoma (UBC) is a chemo-sensitive tumour, but the response to treatment is heterogeneous. CD147 has been associated with chemotherapy resistance. We aimed to define tumours with an aggressive phenotype by the combined analysis of clinicopathological and biological parameters. METHODS 77 patients with T1G3 or muscle-invasive UBC treated by radical cystectomy were studied. Immunohistochemistry was performed to detect CD147, heparanase, CD31 (blood vessels identification) and D2-40 (lymphatic vessels identification) expressions. The immunohistochemical reactions were correlated with the clinicopathological and the outcome parameters. 5-year disease-free survival (DFS) and overall survival (OS) rates were estimated using the Kaplan-Meier method. Multivariate analysis was performed by Cox proportional hazards analysis. RESULTS The 5-year DFS and OS rates were significantly influenced by the classical clinicopathological parameters, and by the occurrence of lymphovascular invasion. CD147 and heparanase immunoexpression did not affect patients' outcome. However, patients with pT3/pT4 tumours had a median OS time of 14.7 months (95% CI 7.1-22.3, p = 0.003), which was reduced to 9.2 months (95% CI 1.5-17.0, p = 0.008) if the tumours were CD147 positive. We developed a model of tumour aggressiveness using parameters as stage, grade, lymphovascular invasion and CD147 immunoexpression, which separated a low aggressiveness from a high aggressiveness group, remaining as an independent prognostic factor of DFS (HR 3.746; 95% CI 1.244-11.285; p = 0.019) and OS (HR 3.247; 95% CI 1.015-10.388, p = 0.047). CONCLUSION CD147 overexpression, included in a model of UBC aggressiveness, may help surgeons to identify patients who could benefit from a personalized therapeutic regimen. Additional validation is needed.
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Affiliation(s)
- J Afonso
- Life and Health Sciences Research Institute - ICVS, School of Health Sciences, University of Minho, Braga, Portugal
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Silva E, Pinto V, Simão S, Serrão M, Afonso J, Amaral J, Pinho M, Gomes P, Soares-da-Silva P. Renal aging in WKY rats: Changes in Na+,K+-ATPase function and oxidative stress. Exp Gerontol 2010; 45:977-83. [DOI: 10.1016/j.exger.2010.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 08/25/2010] [Accepted: 09/21/2010] [Indexed: 11/26/2022]
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Medeiros A, Mesquita I, Oliveira J, Loureiro ACC, Afonso J, Monteiro LZ, Castro JM. Body composition of Brazilian beach volleyball players. Br J Sports Med 2010. [DOI: 10.1136/bjsm.2010.078972.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Breysse M, Afonso J, Lacroix M, Portefaix JL, Vrinat M. Activities and Selectivity of Vanadium, Niobium and Ruthenium Sulphides in Hydrotreating Reactions. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19911001118] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Afonso J, Santos LL, Amaro T, Lobo F, Longatto-Filho A. The aggressiveness of urothelial carcinoma depends to a large extent on lymphovascular invasion--the prognostic contribution of related molecular markers. Histopathology 2010; 55:514-24. [PMID: 19912357 DOI: 10.1111/j.1365-2559.2009.03425.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
AIMS Bladder cancer is the second most common malignancy of the urogenital region. The majority of bladder cancer deaths occur as a consequence of metastatic disease. Blood vessel density (BVD), a surrogate marker for angiogenesis, has been shown to be predictive of progression and poor prognosis, as well as lymphatic vessel density (LVD). The aim of this study was to evaluate, in human urothelial bladder cancer (UBC), the clinical and prognostic significance of angiogenesis, lymphangiogenesis and lymphovascular invasion, assessed with the use of specific immunohistochemical markers. METHODS AND RESULTS Immunohistochemistry for CD31 (a blood vessel endothelial cell marker), D2-40 (a lymphatic vessel endothelial cell marker), vascular endothelial growth factor (VEGF)-C and VEGF-receptor 3 antibodies was performed in 83 patients with urothelial carcinoma who underwent radical cystectomy. The classic histopathological characteristics, associated with lymphovascular invasion and loco-regional dissemination, had a negative influence on 5-year overall survival (OS) rates. BVD and LVD were correlated with advanced and poorly differentiated UBC with lymphovascular invasion. Blood vessel invasion (BVI) by malignant emboli assessed by CD31 staining, and lymphatic vessel invasion (LVI) by isolated malignant cells assessed by D2-40 staining significantly affected OS. VEGF-C overexpression was correlated with both BVI and LVI by single malignant cells assessed by CD31 and D2-40, respectively. BVI by malignant emboli assessed by CD31 staining remained as an independent prognostic factor. CONCLUSIONS Patients with UBC with embolic BVI assessed by CD31 and LVI by isolated malignant cells assessed by D2-40 have a worse prognosis and may benefit from adjuvant therapies.
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Affiliation(s)
- Julieta Afonso
- Instituto Superior de Saúde do Alto Ave, Isave, Portugal
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