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Mendes F, Miranda E, Amaral L, Carvalho C, Castro BB, Sousa MJ, Chaves SR. Novel yeast-based biosensor for environmental monitoring of tebuconazole. Appl Microbiol Biotechnol 2024; 108:10. [PMID: 38170307 PMCID: PMC10764535 DOI: 10.1007/s00253-023-12944-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 01/05/2024]
Abstract
Due to increasing demand for high and stable crop production, human populations are highly dependent on pesticide use for growing and storing food. Environmental monitoring of these agrochemicals is therefore of utmost importance, because of their collateral effects on ecosystem and human health. Even though most current-use analytical methods achieve low detection limits, they require procedures that are too complex and costly for routine monitoring. As such, there has been an increased interest in biosensors as alternative or complementary tools to streamline detection and quantification of environmental contaminants. In this work, we developed a biosensor for environmental monitoring of tebuconazole (TEB), a common agrochemical fungicide. For that purpose, we engineered S. cerevisiae cells with a reporter gene downstream of specific promoters that are expressed after exposure to TEB and characterized the sensitivity and specificity of this model system. After optimization, we found that this easy-to-use biosensor consistently detects TEB at concentrations above 5 μg L-1 and does not respond to realistic environmental concentrations of other tested azoles, suggesting it is specific. We propose the use of this system as a complementary tool in environmental monitoring programs, namely, in high throughput scenarios requiring screening of numerous samples. KEY POINTS: • A yeast-based biosensor was developed for environmental monitoring of tebuconazole. •The biosensor offers a rapid and easy method for tebuconazole detection ≥ 5 μg L-1. •The biosensor is specific to tebuconazole at environmentally relevant concentrations.
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Affiliation(s)
- Filipa Mendes
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Eduarda Miranda
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Leslie Amaral
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Carla Carvalho
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
- Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Bruno B Castro
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Maria João Sousa
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Susana R Chaves
- CBMA - Centre of Molecular and Environmental Biology/ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal.
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2
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Moghassemi S, Dadashzadeh A, Sousa MJ, Vlieghe H, Yang J, León-Félix CM, Amorim CA. Extracellular vesicles in nanomedicine and regenerative medicine: A review over the last decade. Bioact Mater 2024; 36:126-156. [PMID: 38450204 PMCID: PMC10915394 DOI: 10.1016/j.bioactmat.2024.02.021] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
Small extracellular vesicles (sEVs) are known to be secreted by a vast majority of cells. These sEVs, specifically exosomes, induce specific cell-to-cell interactions and can activate signaling pathways in recipient cells through fusion or interaction. These nanovesicles possess several desirable properties, making them ideal for regenerative medicine and nanomedicine applications. These properties include exceptional stability, biocompatibility, wide biodistribution, and minimal immunogenicity. However, the practical utilization of sEVs, particularly in clinical settings and at a large scale, is hindered by the expensive procedures required for their isolation, limited circulation lifetime, and suboptimal targeting capacity. Despite these challenges, sEVs have demonstrated a remarkable ability to accommodate various cargoes and have found extensive applications in the biomedical sciences. To overcome the limitations of sEVs and broaden their potential applications, researchers should strive to deepen their understanding of current isolation, loading, and characterization techniques. Additionally, acquiring fundamental knowledge about sEVs origins and employing state-of-the-art methodologies in nanomedicine and regenerative medicine can expand the sEVs research scope. This review provides a comprehensive overview of state-of-the-art exosome-based strategies in diverse nanomedicine domains, encompassing cancer therapy, immunotherapy, and biomarker applications. Furthermore, we emphasize the immense potential of exosomes in regenerative medicine.
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Affiliation(s)
- Saeid Moghassemi
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Arezoo Dadashzadeh
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Maria João Sousa
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Hanne Vlieghe
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Jie Yang
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Cecibel María León-Félix
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Christiani A. Amorim
- Pôle de Recherche en Physiopathologie de La Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
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Coelho JQ, Romão R, Sousa MJ, Azevedo SX, Fidalgo P, Araújo A. Vitiligo-like Lesions as a Predictor of Response to Immunotherapy in Non-Small Cell Lung Cancer: Comprehensive Review and Case Series from a University Center. Curr Oncol 2024; 31:1113-1128. [PMID: 38392077 PMCID: PMC10887781 DOI: 10.3390/curroncol31020083] [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: 01/05/2024] [Revised: 01/31/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
The reference to vitiligo-like lesions (VLLs) induced by immune checkpoint inhibitors (ICIs) as a valuable predictive marker of treatment success of immunotherapy with ICIs in melanoma has been mentioned in the literature. Its role in non-small cell lung cancer (NSCLC)-treated patients remains a poorly recognized phenomenon with uncertain significance regarding its predictive value. A retrospective, observational, single-center report was performed, with descriptive analysis of clinicopathological and treatment characteristics of patients with stage IV NSCLC who developed ICI-induced VLL between January 2018 and December 2022, contextualized in a comprehensive review of the literature and reported cases regarding this phenomenon. During the first 5 years' experience of ICI use in stage IV NSCLC treatment, three cases of ICI-induced VLLs were diagnosed. In line with the previous reports, two of the three presented cases exhibited treatment response and favorable prognosis. The recognition and understanding of the pathophysiological processes underlying ICI-induced VLLs may represent a promising opportunity to identify a predictive marker of tumor response to ICIs, with impact in treatment selection and patient management. It also may contribute to the recognition of new patterns of molecular expression that could lead to improvements in therapeutic development.
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Affiliation(s)
| | - Raquel Romão
- Unidade Local de Saúde de Santo António, 4099-001 Porto, Portugal
| | - Maria João Sousa
- Unidade Local de Saúde de Santo António, 4099-001 Porto, Portugal
| | | | - Paula Fidalgo
- Unidade Local de Saúde de Santo António, 4099-001 Porto, Portugal
| | - António Araújo
- Unidade Local de Saúde de Santo António, 4099-001 Porto, Portugal
- Oncology Research Unit, 4050-346 Porto, Portugal
- UMIB—Unit for Multidisciplinary Research in Biomedicine, 4050-346 Porto, Portugal
- ICBAS—School of Medicine and Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal
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Alexandre A, Ribeiro D, Sousa MJ, Reis H, Silveira J, Torres S. An Unusual Presentation of Lyme Carditis and Adenosine-Sensitive Atrioventricular Block. Arq Bras Cardiol 2024; 121:e20230228. [PMID: 38324857 DOI: 10.36660/abc.20230228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 10/25/2023] [Indexed: 02/09/2024] Open
Affiliation(s)
- André Alexandre
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
| | - Diana Ribeiro
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
| | - Maria João Sousa
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
| | - Hipólito Reis
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
- ICBAS - Faculdade de Medicina e Ciências Biomédicas , Universidade do Porto , Porto - Portugal
| | - João Silveira
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
- ICBAS - Faculdade de Medicina e Ciências Biomédicas , Universidade do Porto , Porto - Portugal
| | - Severo Torres
- Departamento de Cardiologia, Centro Hospitalar Universitário de Santo António (CHUDSA), Porto - Portugal
- ICBAS - Faculdade de Medicina e Ciências Biomédicas , Universidade do Porto , Porto - Portugal
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5
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Campinas A, Pereira Santos M, Sousa MJ, Gomes C, Torres S. Amiodarone-Induced Electrical Storm: A Nightmare in the Emergency Room. Cureus 2023; 15:e49494. [PMID: 38152805 PMCID: PMC10751592 DOI: 10.7759/cureus.49494] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 12/29/2023] Open
Abstract
Drug-induced long QT syndrome (LQTS) is defined as prolonged corrected QT interval (QTc ≥460 ms) plus polymorphic ventricular arrhythmia fitting the description of torsades de pointes temporally associated with the administration of a drug or combination of drugs. Amiodarone therapy is a known uncommon cause of acquired QT interval prolongation that should not be underestimated. We present a case of an iatrogenic electrical storm with atrial fibrillation (AF) in which amiodarone was administered to attempt chemical cardioversion, resulting in an unnoticed prolongation of the QT interval, with subsequent repeated polymorphic ventricular tachycardia, managed with isoproterenol. Concomitant drugs and slight electrolyte disturbances potentiated this phenomenon. Given the widespread use of this drug in the emergency department, our case highlights a pertinent matter for all medical emergency practitioners. Additionally, it stresses the significance of potential precipitating factors, such as electrolyte imbalances, which are clinical conditions very frequent in the emergency context, along with the importance of recognizing drug interactions. Finally, this case also emphasizes the vital importance of closely monitoring the patient's receiving amiodarone.
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Affiliation(s)
- Andreia Campinas
- Cardiology, Centro Hospitalar Universitário de Santo António, Porto, PRT
| | | | - Maria João Sousa
- Cardiology, Centro Hospitalar Universitário de Santo António, Porto, PRT
| | - Catarina Gomes
- Cardiology, Centro Hospitalar Universitário de Santo António, Porto, PRT
| | - Severo Torres
- Cardiology, Centro Hospitalar Universitário de Santo António, Porto, PRT
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6
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Donzella L, Sousa MJ, Morrissey JP. Evolution and functional diversification of yeast sugar transporters. Essays Biochem 2023; 67:811-827. [PMID: 36928992 PMCID: PMC10500205 DOI: 10.1042/ebc20220233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/24/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023]
Abstract
While simple sugars such as monosaccharides and disaccharide are the typical carbon source for most yeasts, whether a species can grow on a particular sugar is generally a consequence of presence or absence of a suitable transporter to enable its uptake. The most common transporters that mediate sugar import in yeasts belong to the major facilitator superfamily (MFS). Some of these, for example the Saccharomyces cerevisiae Hxt proteins have been extensively studied, but detailed information on many others is sparce. In part, this is because there are many lineages of MFS transporters that are either absent from, or poorly represented in, the model S. cerevisiae, which actually has quite a restricted substrate range. It is important to address this knowledge gap to gain better understanding of the evolution of yeasts and to take advantage of sugar transporters to exploit or engineer yeasts for biotechnological applications. This article examines the full repertoire of MFS proteins in representative budding yeasts (Saccharomycotina). A comprehensive analysis of 139 putative sugar transporters retrieved from 10 complete genomes sheds new light on the diversity and evolution of this family. Using the phylogenetic lens, it is apparent that proteins have often been misassigned putative functions and this can now be corrected. It is also often seen that patterns of expansion of particular genes reflects the differential importance of transport of specific sugars (and related molecules) in different yeasts, and this knowledge also provides an improved resource for the selection or design of tailored transporters.
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Affiliation(s)
- Lorena Donzella
- School of Microbiology, Environmental Research Institute, APC Microbiome Ireland, SUSFERM Research Centre, University College Cork, T12 K8AF, Cork, Ireland
- Department of Biology, CBMA (Centre of Molecular and Environmental Biology), University of Minho, Braga, Portugal
| | - Maria João Sousa
- Department of Biology, CBMA (Centre of Molecular and Environmental Biology), University of Minho, Braga, Portugal
| | - John P Morrissey
- School of Microbiology, Environmental Research Institute, APC Microbiome Ireland, SUSFERM Research Centre, University College Cork, T12 K8AF, Cork, Ireland
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Gomes VSD, Ferreira JCC, Boto RE, Almeida P, Fernandes JR, Sousa MJ, Reis LV, Gonçalves MST. Evaluation of Antifungal Activity and Potential Application as Fluorescent Probes of Indolenine and Benzo[e]Indole-Based Squarylium Dyes. Photochem Photobiol 2023; 99:1282-1292. [PMID: 36524439 DOI: 10.1111/php.13762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
The antifungal performance and the possible use as fluorescent probes of a series of squarylium dyes derived from indolenine and benzo[e]indole previously synthesized was evaluated. Some photophysical properties were performed in ethanol and phosphate buffer, and the type of aggregates form in phosphate buffer was analyzed. Using the 1,3-diphenylisobenzofuran assay, a qualitative assessment of the capacity of dyes to produce singlet oxygen after irradiation was performed. Regarding the antifungal activity, this was studied through a broth microdilution assay using Saccharomyces cerevisiae PYCC 4072 as a biological model. The effect of irradiation of the dyes, with an appropriate light emitting diode system, on the antifungal activity was also evaluated, and it was verified that some of the dyes improve their activity after irradiation. Using fluorescence microscopy techniques, the colocalization of dyes in S. cerevisae cells was investigated and it was possible to verify that some of the squarylium dyes with a barbituric moiety in the four-membered central ring stained and accumulated preferentially in the mitochondrial web and perinuclear membrane of the cells. The possible use as a fluorescent probe for the detection of HSA was also evaluated for one of the dyes of the series, demonstrating a linear variation in the fluorescence intensity accompanied by the increase in the protein concentration.
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Affiliation(s)
- Vanessa S D Gomes
- Department of Chemistry, Centre of Chemistry - Vila Real (CQ-VR), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
- Department of Chemistry, Centre of Chemistry (CQ-UM), University of Minho, Braga, Portugal
| | - João C C Ferreira
- Department of Chemistry, Centre of Chemistry (CQ-UM), University of Minho, Braga, Portugal
- Department of Biology, Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, Braga, Portugal
| | - Renato E Boto
- Department of Chemistry, Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Covilhã, Portugal
| | - Paulo Almeida
- Department of Chemistry, Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Covilhã, Portugal
| | - José R Fernandes
- Physical Department, Centre of Chemistry - Vila Real (CQ-VR), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Maria João Sousa
- Department of Biology, Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, Braga, Portugal
| | - Lucinda V Reis
- Department of Chemistry, Centre of Chemistry - Vila Real (CQ-VR), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - M Sameiro T Gonçalves
- Department of Chemistry, Centre of Chemistry (CQ-UM), University of Minho, Braga, Portugal
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Queirós Gomes J, Pereira Dias LP, Barreira P, Barradas Lopes J, Sousa MJ, Cadinha S, Malheiro D. Relevance of the diagnosis of hypersensitivity reactions to antineoplastic and biological agents: experience with drug provocation test. Eur Ann Allergy Clin Immunol 2023. [PMID: 37133313 DOI: 10.23822/eurannaci.1764-1489.296] [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] [Indexed: 05/04/2023]
Abstract
Summary Background. Evidence regarding drug provocation test (DPT) with chemotherapeutic agents is scarce. The aim of our study is to describe the experience of DPT in patients with a history of hypersensitivity reactions (HSRs) to antineoplastic and biological agents. Methods. This was an eight-year retrospective, observational, descriptive study of patients with a history of HSRs to chemotherapy who were submitted to DPT. Anamnesis, skin tests (ST) and DPT were analyzed. Patients with a negative DPT were submitted to at least one regular supervised administration (RSA). Patients with positive DPT or HSR during RSA were offered rapid drug desensitization (RDD). Results. A total of 54 patients were submitted to DPT. The most common suspected drugs were platins (n = 36), followed by taxanes (n = 11). Most initial reactions were classified as grade II (n = 39) according to Brown's grading system. ST with platinum (n = 35), taxanes (n = 10) and biological agents (n = 4) were negative, except for one intradermal test with paclitaxel, which was positive. A total of 64 DPTs were performed. Eleven percent of all DPTs were positive (platins (n = 6), doxorubicin (n = 1)). Of the 57 RSA with the culprit drugs, 2 were positive (platins). The diagnosis of hypersensitivity was confirmed by DPT/RSA in 9 patients. All patients with positive DPT/RSA presented HSRs of equal or less severity than the initial one. Conclusions. DPT followed by RSA allowed to exclude HSRs in 45 patients (55 culprit drugs). DPT before desensitization prevents non-hypersensitivity patients from undergoing RDD. In our study DPT was safe, all reactions were managed by an allergist.
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Affiliation(s)
- J Queirós Gomes
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - L P Pereira Dias
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - P Barreira
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - J Barradas Lopes
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - M J Sousa
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - S Cadinha
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
| | - D Malheiro
- Department of Allergy and Clinical Immunology, Centro Hospitalar Vila Nova Gaia/Espinho, Porto, Portugal
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Marcos J, Carriço R, Sousa MJ, Palma ML, Pereira P, Nunes MC, Nicolai M. Effect of Grape Pomace Flour in Savory Crackers: Technological, Nutritional and Sensory Properties. Foods 2023; 12:foods12071392. [PMID: 37048213 PMCID: PMC10093324 DOI: 10.3390/foods12071392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
The wine industry generates large amounts of by-products that are usually destined as waste. Grape pomace is the residue of the winemaking process and is rich in compounds with functional properties, such as dietary fiber and phenolic compounds. The aim of this research was to study the influence of white and red grape pomace flour (GPF) addition in the enhancement of functional properties of savory crackers. Different levels of incorporation were tested (5%, 10% and 15% (w/w)). Analysis of physical properties, nutritional composition and sensory acceptability were conducted to evaluate the effect of GPF incorporation. GPF cracker stability throughout a four-week period was achieved with regard to firmness and color. These products presented distinctive and appealing colors, ranging from a violet (GPF of Touriga Nacional variety) to a brown hue (GPF of Arinto variety). Concerning nutritional composition, both crackers incorporated with 10% GPF of Arinto or Touriga Nacional varieties could be considered “high in fiber”, as per the Regulation (EC) No. 1924/2006, suggesting a functional food. GPF crackers demonstrated an overall great acceptance of this kind of innovative foods, with the majority indicating that they would certainly/probably buy them. Moreover, the cracker with 10% Arinto GPF achieved the most balanced and overall preference.
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Affiliation(s)
- Joana Marcos
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Raquel Carriço
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Maria João Sousa
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - M. Lídia Palma
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
- CBIOS—Research Center for Biosciences & Health Technologies, Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Paula Pereira
- CBIOS—Research Center for Biosciences & Health Technologies, Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
- CERENA—Center for Natural Resources and Environment, Instituto Superior Técnico (IST), Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- EPCV—Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - M. Cristiana Nunes
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, School of Agriculture, University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon, Portugal
| | - Marisa Nicolai
- ECTS—Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
- CBIOS—Research Center for Biosciences & Health Technologies, Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
- Correspondence:
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Dias-Frias A, Costa R, Campinas A, Alexandre A, Sá-Couto D, Sousa MJ, Roque C, Vieira P, Lagarto V, Reis H, Torres S. Right Ventricular Septal Versus Apical Pacing: Long-Term Incidence of Heart Failure and Survival. J Cardiovasc Dev Dis 2022; 9:jcdd9120444. [PMID: 36547441 PMCID: PMC9786931 DOI: 10.3390/jcdd9120444] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
The clinical benefits of right ventricular septal (RVS) pacing compared to those of right ventricular apical (RVA) pacing are still in debate. We aimed to compare the incidence of heart failure (HF) and all-cause mortality in patients submitted to RVS and RVA pacing during a longer follow-up. This a single-center, retrospective study analysis of consecutive patients submitted to pacemaker implantation. The primary outcome was defined as the occurrence of HF during follow-up. The secondary outcome was all-cause death. A total of 251 patients were included, 47 (18.7%) with RVS pacing. RVS pacing was associated to younger age, male gender, lower body mass index, ischemic heart disease, and atrial fibrillation. During a follow-up period of 5.2 years, the primary outcome occurred in 89 (37.1%) patients. RVS pacing was independently associated with a 3-fold lower risk of HF, after adjustment. The secondary outcome occurred in 83 (34.2%) patients, and pacemaker lead position was not a predictor. Fluoroscopy time and rate of complications (rarely life-threatening) were similar in both groups. Our study points to a potential clinical benefit of RVS positioning, with a 3.3-fold lower risk of HF, without accompanying increase in procedure complexity nor complication rate.
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11
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Ferraz L, Vorauer‐Uhl K, Sauer M, Sousa MJ, Branduardi P. Impact of ergosterol content on acetic and lactic acids toxicity to
Saccharomyces cerevisiae. Yeast 2022; 40:152-165. [PMID: 36380459 DOI: 10.1002/yea.3828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022] Open
Abstract
Organic acid stress often represents a major hurdle in industrial bio-based microbial processes. Organic acids can be released from lignocellulosic feedstocks pretreatment and can also be desirable products obtained by microbial fermentation with applications in different industrial sectors. Yeasts are prominent cell factories. However, the presence of organic acids can compromise yeast metabolism, impairing fermentation performances and limiting the economic feasibility of the processes. Plasma membrane remodeling is deeply involved in yeast tolerance to organic acids, but the detailed mechanisms and potentials of this phenomenon remain largely to be studied and exploited. We investigated the impact of ergosterol on Saccharomyces cerevisiae tolerance against organic acid stress by coupling in vitro and in vivo assays. In the in vitro assay, synthetic lipid vesicles were prepared containing different concentrations of ergosterol. We observed changes in organic acids diffusion through the membrane as a function of ergosterol content. Then, we extended our approach in vivo, engineering S. cerevisiae with the aim of changing the ergosterol content of cells. We focused on ECM22, an important transcription factor, involved in the regulation of ergosterol biosynthesis. The overexpression of ECM22 was sufficient to increase ergosterol levels in S. cerevisiae, resulting in an enhanced tolerance toward lactic acid stress. In this work we propose an in vitro approach, using synthetic lipid vesicles, as a complementary method to be used when studying the impact of the plasma membrane lipid composition on the diffusion of organic acids.
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Affiliation(s)
- Luís Ferraz
- Department of Biotechnology and BiosciencesUniversity of Milano BicoccaMilanItaly
- Center of Molecular and Environmental BiologyUniversity of MinhoBragaPortugal
| | - Karola Vorauer‐Uhl
- Institute of Bioprocess Science and Engineering, Department of BiotechnologyBOKU University of Natural Resources and Life SciencesViennaAustria
| | - Michael Sauer
- Institute of Microbiology and Microbial Biotechnology, Department of BiotechnologyBOKU University of Natural Resources and Life SciencesViennaAustria
| | - Maria João Sousa
- Center of Molecular and Environmental BiologyUniversity of MinhoBragaPortugal
| | - Paola Branduardi
- Department of Biotechnology and BiosciencesUniversity of Milano BicoccaMilanItaly
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12
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Ferreira A, Pereira F, Reis C, Oliveira MJ, Sousa MJ, Preto A. Crucial Role of Oncogenic KRAS Mutations in Apoptosis and Autophagy Regulation: Therapeutic Implications. Cells 2022; 11:cells11142183. [PMID: 35883626 PMCID: PMC9319879 DOI: 10.3390/cells11142183] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/05/2022] [Accepted: 07/10/2022] [Indexed: 11/16/2022] Open
Abstract
KRAS, one of the RAS protein family members, plays an important role in autophagy and apoptosis, through the regulation of several downstream effectors. In cancer cells, KRAS mutations confer the constitutive activation of this oncogene, stimulating cell proliferation, inducing autophagy, suppressing apoptosis, altering cell metabolism, changing cell motility and invasion and modulating the tumor microenvironment. In order to inhibit apoptosis, these oncogenic mutations were reported to upregulate anti-apoptotic proteins, including Bcl-xL and survivin, and to downregulate proteins related to apoptosis induction, including thymine-DNA glycosylase (TDG) and tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL). In addition, KRAS mutations are known to induce autophagy in order to promote cell survival and tumor progression through MAPK and PI3K regulation. Thus, these mutations confer resistance to anti-cancer drug treatment and, consequently, result in poor prognosis. Several therapies have been developed in order to overcome KRAS-induced cell death resistance and the downstream signaling pathways blockade, especially by combining MAPK and PI3K inhibitors, which demonstrated promising results. Understanding the involvement of KRAS mutations in apoptosis and autophagy regulation, might bring new avenues to the discovery of therapeutic approaches for CRCs harboring KRAS mutations.
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Affiliation(s)
- Anabela Ferreira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.F.); (F.P.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Flávia Pereira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.F.); (F.P.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal; (C.R.); (M.J.O.)
- Institute of Biomedical Engineering (INEB), University of Porto, 4200-135 Porto, Portugal
| | - Celso Reis
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal; (C.R.); (M.J.O.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4200-135 Porto, Portugal
| | - Maria José Oliveira
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal; (C.R.); (M.J.O.)
- Institute of Biomedical Engineering (INEB), University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.F.); (F.P.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Ana Preto
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.F.); (F.P.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Correspondence: ; Tel.: +351-253-601524
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13
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Silva-Sousa F, Fernandes T, Pereira F, Rodrigues D, Rito T, Camarasa C, Franco-Duarte R, Sousa MJ. Torulaspora delbrueckii Phenotypic and Metabolic Profiling towards Its Biotechnological Exploitation. J Fungi (Basel) 2022; 8:jof8060569. [PMID: 35736052 PMCID: PMC9225199 DOI: 10.3390/jof8060569] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
Wine is a particularly complex beverage resulting from the combination of several factors, with yeasts being highlighted due to their fundamental role in its development. For many years, non-Saccharomyces yeasts were believed to be sources of spoilage and contamination, but this idea was challenged, and many of these yeasts are starting to be explored for their beneficial input to wine character. Among this group, Torulaspora delbrueckii is gaining relevance within the wine industry, owing to its low volatile acidity production, increased release of aromatic compounds and enhanced color intensity. In addition, this yeast was also attracting interest in other biotechnological areas, such as bread and beer fermentation. In this work, a set of 40 T. delbrueckii strains, of varied geographical and technological origins, was gathered in order to characterize the phenotypic behavior of this species, focusing on different parameters of biotechnological interest. The fermentative performance of the strains was also evaluated through individual fermentations in synthetic grape must with the isolates’ metabolic profile being assessed by HPLC. Data analysis revealed that T. delbrueckii growth is significantly affected by high temperature (37 °C) and ethanol concentrations (up to 18%), alongside 1.5 mM SO2, showing variable fermentative power and yields. Our computation models suggest that the technological origin of the strains seems to prevail over the geographical origin as regards the influence on yeast properties. The inter-strain variability and profile of the products through the fermentative processes reinforce the potential of T. delbrueckii from a biotechnological point of view.
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Affiliation(s)
- Flávia Silva-Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Ticiana Fernandes
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Fábio Pereira
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Diana Rodrigues
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Teresa Rito
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Carole Camarasa
- SPO, University Montpellier, INRAE, Institut Agro, 34060 Montpellier, France;
| | - Ricardo Franco-Duarte
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
- Correspondence: (R.F.-D.); (M.J.S.)
| | - Maria João Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (F.S.-S.); (T.F.); (F.P.); (D.R.); (T.R.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
- Correspondence: (R.F.-D.); (M.J.S.)
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14
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Guedes JP, Baptista V, Santos-Pereira C, Sousa MJ, Manon S, Chaves SR, Côrte-Real M. Acetic acid triggers cytochrome c release in yeast heterologously expressing human Bax. Apoptosis 2022; 27:368-381. [PMID: 35362903 DOI: 10.1007/s10495-022-01717-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2022] [Indexed: 11/29/2022]
Abstract
Proteins of the Bcl-2 protein family, including pro-apoptotic Bax and anti-apoptotic Bcl-xL, are critical for mitochondrial-mediated apoptosis regulation. Since yeast lacks obvious orthologs of Bcl-2 family members, heterologous expression of these proteins has been used to investigate their molecular and functional aspects. Active Bax is involved in the formation of mitochondrial outer membrane pores, through which cytochrome c (cyt c) is released, triggering a cascade of downstream apoptotic events. However, when in its inactive form, Bax is largely cytosolic or weakly bound to mitochondria. Given the central role of Bax in apoptosis, studies aiming to understand its regulation are of paramount importance towards its exploitation as a therapeutic target. So far, studies taking advantage of heterologous expression of human Bax in yeast to unveil regulation of Bax activation have relied on the use of artificial mutated or mitochondrial tagged Bax for its activation, rather than the wild type Bax (Bax α). Here, we found that cell death could be triggered in yeast cells heterologoulsy expressing Bax α with concentrations of acetic acid that are not lethal to wild type cells. This was associated with Bax mitochondrial translocation and cyt c release, closely resembling the natural Bax function in the cellular context. This regulated cell death process was reverted by co-expression with Bcl-xL, but not with Bcl-xLΔC, and in the absence of Rim11p, the yeast ortholog of mammalian GSK3β. This novel system mimics human Bax α regulation by GSK3β and can therefore be used as a platform to uncover novel Bax regulators and explore its therapeutic modulation.
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Affiliation(s)
- Joana P Guedes
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.,Centro de Investigacíon Médica Aplicada (CIMA), Universidad de Navarra, 31008, Pamplona, Spain
| | - Vitória Baptista
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.,Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cátia Santos-Pereira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.,Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, 4710-057, Braga, Portugal.,LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Stéphen Manon
- UMR 5095, CNRS, Université de Bordeaux, Campus Carreire, 1 Rue Camille Saint-Saëns, 33077, Bordeaux, France
| | - Susana R Chaves
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Manuela Côrte-Real
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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15
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Gomes VSD, Ferreira JCC, Boto REF, Almeida P, Fernandes JR, Sousa MJ, Gonçalves MST, Reis LV. Squaraine Dyes Derived from Indolenine and Benzo[e]indole as Potential Fluorescent Probes for HSA Detection and Antifungal Agents. Photochem Photobiol 2022; 98:1402-1417. [PMID: 35348226 DOI: 10.1111/php.13624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/19/2021] [Revised: 03/03/2022] [Accepted: 03/23/2022] [Indexed: 11/26/2022]
Abstract
Four squaraine dyes derived from 2,3,3-trimethylindolenine and 1,1,2-trimethyl-1H-benzo[e]indole with different combinations of barbituric groups attach to the central ring, having ester groups and alkyl chains in the nitrogen atoms of heterocyclic rings were synthesized. These dyes were fully characterized and their photophysical behavior was studied in ethanol and phosphate-buffered saline solution. Absorption and emission bands between 631 and 712 nm were detected, with the formation of aggregates in aqueous media, which is typical of this class of dyes. Tests carried out with 1,3-diphenylisobenzofuran allowed us to verify the ability of the dyes to produce singlet oxygen. The interaction of synthesized dyes with human serum albumin (HSA) was also evaluated, being demonstrated a linear correlation between fluorescence intensity and protein concentration. The antifungal potential of the dyes against the yeast Saccharomyces cerevisiae was evaluated using a broth microdilution assay. In order to test the photosensitizing capacity of the synthesized dyes, tests were carried out in the dark and with irradiation, using a custom-built light-emitting diode that emits close to the absorption wavelength of the studied dyes. The results showed that the interaction of dyes with HSA and the antifungal activity depends on the different structural modifications of the dyes.
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Affiliation(s)
- Vanessa S D Gomes
- Centre of Chemistry-Vila Real (CQ-VR)/Department of Chemistry, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
- Centre of Chemistry (CQ-UM)/Department of Chemistry, University of Minho, Braga, Portugal
| | - João C C Ferreira
- Centre of Chemistry (CQ-UM)/Department of Chemistry, University of Minho, Braga, Portugal
- Centre of Molecular and Environmental Biology (CBMA)/Department of Biology, University of Minho, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, Braga, Portugal
| | - Renato E F Boto
- Health Sciences Research Centre (CICS-UBI)/Department of Chemistry, University of Beira Interior, Covilhã, Portugal
| | - Paulo Almeida
- Health Sciences Research Centre (CICS-UBI)/Department of Chemistry, University of Beira Interior, Covilhã, Portugal
| | - Jose R Fernandes
- Centre of Chemistry-Vila Real (CQ-VR)/Department of Chemistry, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
- Physical Department, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA)/Department of Biology, University of Minho, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, Braga, Portugal
| | - M Sameiro T Gonçalves
- Centre of Chemistry (CQ-UM)/Department of Chemistry, University of Minho, Braga, Portugal
| | - Lucinda V Reis
- Centre of Chemistry-Vila Real (CQ-VR)/Department of Chemistry, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
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16
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Silva M, Pontes A, Franco-Duarte R, Soares P, Sampaio JP, Sousa MJ, Brito PH. A glimpse at an early stage of microbe domestication revealed in the variable genome of Torulaspora delbrueckii, an emergent industrial yeast. Mol Ecol 2022; 32:2396-2412. [PMID: 35298044 DOI: 10.1111/mec.16428] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 08/04/2021] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 11/28/2022]
Abstract
Microbe domestication has a major applied relevance but is still poorly understood from an evolutionary perspective. The yeast Torulaspora delbrueckii is gaining importance for biotechnology but little is known about its population structure, variation in gene content, or possible domestication routes. Here, we show that T. delbrueckii is composed of five major clades. Among the three European clades, a lineage associated with the wild arboreal niche is sister to the two other lineages that are linked with anthropic environments, one to wine fermentations and the other to diverse sources including dairy products and bread dough (Mix- Anthropic clade). Using 64 genomes we assembled the pangenome and the variable genome of T. delbrueckii. A comparison with Saccharomyces cerevisiae indicated that the weight of the variable genome in the pangenome of T. delbrueckii is considerably smaller. An association of gene content and ecology supported the hypothesis that the Mix - Anthropic clade has the most specialized genome and indicated that some of the exclusive genes were implicated in galactose and maltose utilization. More detailed analyses traced the acquisition of a cluster of GAL genes in strains associated with dairy products and the expansion and functional diversification of MAL genes in strains isolated from bread dough. Contrary to S. cerevisiae, domestication in T. delbrueckii is not primarily driven by alcoholic fermentation but rather by adaptation to dairy and bread-production niches. This study expands our views on the processes of microbe domestication and on the trajectories leading to adaptation to anthropic niches.
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Affiliation(s)
- Margarida Silva
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Ana Pontes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Ricardo Franco-Duarte
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Braga, Portugal.,Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Braga, Portugal
| | - Pedro Soares
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Braga, Portugal.,Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Braga, Portugal
| | - José Paulo Sampaio
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Maria João Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Braga, Portugal.,Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Braga, Portugal
| | - Patrícia H Brito
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
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17
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Pereira F, Ferreira A, Reis CA, Sousa MJ, Oliveira MJ, Preto A. KRAS as a Modulator of the Inflammatory Tumor Microenvironment: Therapeutic Implications. Cells 2022; 11:cells11030398. [PMID: 35159208 PMCID: PMC8833974 DOI: 10.3390/cells11030398] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/07/2022] [Accepted: 01/19/2022] [Indexed: 02/01/2023] Open
Abstract
KRAS mutations are one of the most frequent oncogenic mutations of all human cancers, being more prevalent in pancreatic, colorectal, and lung cancers. Intensive efforts have been encouraged in order to understand the effect of KRAS mutations, not only on tumor cells but also on the dynamic network composed by the tumor microenvironment (TME). The relevance of the TME in cancer biology has been increasing due to its impact on the modulation of cancer cell activities, which can dictate the success of tumor progression. Here, we aimed to clarify the pro- and anti-inflammatory role of KRAS mutations over the TME, detailing the context and the signaling pathways involved. In this review, we expect to open new avenues for investigating the potential of KRAS mutations on inflammatory TME modulation, opening a different vision of therapeutic combined approaches to overcome KRAS-associated therapy inefficacy and resistance in cancer.
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Affiliation(s)
- Flávia Pereira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Engineering (INEB), University of Porto, 4200-135 Porto, Portugal
| | - Anabela Ferreira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Celso Albuquerque Reis
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), 4200-135 Porto, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Maria José Oliveira
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Engineering (INEB), University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Ana Preto
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
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18
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Terra-Matos J, Teixeira MO, Santos-Pereira C, Noronha H, Domingues L, Sieiro C, Gerós H, Chaves SR, Sousa MJ, Côrte-Real M. Saccharomyces cerevisiae Cells Lacking the Zinc Vacuolar Transporter Zrt3 Display Improved Ethanol Productivity in Lignocellulosic Hydrolysates. J Fungi (Basel) 2022; 8:78. [PMID: 35050019 PMCID: PMC8779672 DOI: 10.3390/jof8010078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/29/2022] Open
Abstract
Yeast-based bioethanol production from lignocellulosic hydrolysates (LH) is an attractive and sustainable alternative for biofuel production. However, the presence of acetic acid (AA) in LH is still a major problem. Indeed, above certain concentrations, AA inhibits yeast fermentation and triggers a regulated cell death (RCD) process mediated by the mitochondria and vacuole. Understanding the mechanisms involved in AA-induced RCD (AA-RCD) may thus help select robust fermentative yeast strains, providing novel insights to improve lignocellulosic ethanol (LE) production. Herein, we hypothesized that zinc vacuolar transporters are involved in vacuole-mediated AA-RCD, since zinc enhances ethanol production and zinc-dependent catalase and superoxide dismutase protect from AA-RCD. In this work, zinc limitation sensitized wild-type cells to AA-RCD, while zinc supplementation resulted in a small protective effect. Cells lacking the vacuolar zinc transporter Zrt3 were highly resistant to AA-RCD, exhibiting reduced vacuolar dysfunction. Moreover, zrt3Δ cells displayed higher ethanol productivity than their wild-type counterparts, both when cultivated in rich medium with AA (0.29 g L-1 h-1 versus 0.11 g L-1 h-1) and in an LH (0.73 g L-1 h-1 versus 0.55 g L-1 h-1). Overall, the deletion of ZRT3 emerges as a promising strategy to increase strain robustness in LE industrial production.
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Affiliation(s)
- Joana Terra-Matos
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
| | - Marta Oliveira Teixeira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, Campus of Azurém, University of Minho, 4800-058 Guimarães, Portugal
| | - Cátia Santos-Pereira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
- Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, 4710-057 Braga, Portugal;
| | - Henrique Noronha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Lucília Domingues
- Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, 4710-057 Braga, Portugal;
| | - Carmen Sieiro
- Biomedical Research Center (CINBIO), Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, 36310 Vigo, Spain;
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
- Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, 4710-057 Braga, Portugal;
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Susana Rodrigues Chaves
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
| | - Manuela Côrte-Real
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University do Minho, 4710-057 Braga, Portugal; (J.T.-M.); (M.O.T.); (C.S.-P.); (H.N.); (H.G.); (S.R.C.); (M.J.S.)
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Franco-Duarte R, Čadež N, Rito T, Drumonde-Neves J, Dominguez YR, Pais C, Sousa MJ, Soares P. Whole-Genome Sequencing and Annotation of the Yeast Clavispora santaluciae Reveals Important Insights about Its Adaptation to the Vineyard Environment. J Fungi (Basel) 2022; 8:jof8010052. [PMID: 35049992 PMCID: PMC8781136 DOI: 10.3390/jof8010052] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/16/2022] Open
Abstract
Clavispora santaluciae was recently described as a novel non-Saccharomyces yeast species, isolated from grapes of Azores vineyards, a Portuguese archipelago with particular environmental conditions, and from Italian grapes infected with Drosophila suzukii. In the present work, the genome of five Clavispora santaluciae strains was sequenced, assembled, and annotated for the first time, using robust pipelines, and a combination of both long- and short-read sequencing platforms. Genome comparisons revealed specific differences between strains of Clavispora santaluciae reflecting their isolation in two separate ecological niches—Azorean and Italian vineyards—as well as mechanisms of adaptation to the intricate and arduous environmental features of the geographical location from which they were isolated. In particular, relevant differences were detected in the number of coding genes (shared and unique) and transposable elements, the amount and diversity of non-coding RNAs, and the enzymatic potential of each strain through the analysis of their CAZyome. A comparative study was also conducted between the Clavispora santaluciae genome and those of the remaining species of the Metschnikowiaceae family. Our phylogenetic and genomic analysis, comprising 126 yeast strains (alignment of 2362 common proteins) allowed the establishment of a robust phylogram of Metschnikowiaceae and detailed incongruencies to be clarified in the future.
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Affiliation(s)
- Ricardo Franco-Duarte
- CBMA, Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.R.); (C.P.); (M.J.S.); (P.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
- Correspondence: or
| | - Neža Čadež
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 101, 1000 Ljubljana, Slovenia;
| | - Teresa Rito
- CBMA, Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.R.); (C.P.); (M.J.S.); (P.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - João Drumonde-Neves
- IITAA—Institute of Agricultural and Environmental Research and Technology, University of Azores, 9700-042 Angra do Heroísmo, Portugal;
| | | | - Célia Pais
- CBMA, Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.R.); (C.P.); (M.J.S.); (P.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Maria João Sousa
- CBMA, Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.R.); (C.P.); (M.J.S.); (P.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Pedro Soares
- CBMA, Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.R.); (C.P.); (M.J.S.); (P.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
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20
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Basto R, Brandão Rêgo I, Correia Magalhães J, Sousa MJ, Cunha Pereira T, Broco S, Pazos I, Carvalho T, Sousa G. Epithelioid Trophoblastic Tumour Presenting with Scalp Lesions. Eur J Case Rep Intern Med 2021; 8:002870. [PMID: 34790631 DOI: 10.12890/2021_002870] [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: 10/25/2021] [Accepted: 10/11/2021] [Indexed: 11/05/2022] Open
Abstract
Epithelioid trophoblastic tumour (ETT) is a very rare variant of gestational trophoblastic disease, which arises in reproductive-age women with a prior gestational history. Because of its rarity, its biological behaviour, imaging characteristics and therapeutic schedule have not yet been fully established. Here we describe a rare case of metastatic ETT in a premenopausal woman. A 40-year-old, gravida 3, para 2, Portuguese woman was referred to the dermatology department for multiple skin nodules on the scalp measuring between 1 and 6 cm. A skin biopsy was suggestive of metastatic lesions of low differentiated carcinoma in favour of squamous cell carcinoma. Staging cervical-thoracic-abdominal and pelvic CT showed multiple lesions compatible with metastasis (ganglia, lung and kidneys). Since a CT scan was unable to identify the primary tumour, it was decided to perform a PET-CT scan and to take a biopsy of a vulvar nodule which had been clinically identified as ETT. The patient began the EMA-CO protocol and completed two cycles but with clinical worsening and radiological progression. Although several different chemotherapy regimens are used to treat gestational trophoblastic disease, the optimal treatment is not known given the rarity of this disease and the lack of controlled trials. LEARNING POINTS Trophoblastic disease is a rare entity with several presentations at diagnosis.Presentation with dermatological changes may need differential diagnosis to distinguish it from other types of dermatological disease.Quick diagnosis and referral to an appropriate centre are needed.
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Affiliation(s)
- Raquel Basto
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Inês Brandão Rêgo
- Medical Oncology Department, Centro Hospitalar e Universitário de São João, Porto, Portugal
| | - Joana Correia Magalhães
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Maria João Sousa
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Tatiana Cunha Pereira
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Sofia Broco
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Isabel Pazos
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Teresa Carvalho
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
| | - Gabriela Sousa
- Medical Oncology Department, Instituto Português de Oncologia de Coimbra, Francisco Gentil, E.P.E., Coimbra, Portugal
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21
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Ferreira JCC, Lopes C, Preto A, Gonçalves MST, Sousa MJ. Novel Nile Blue Analogue Stains Yeast Vacuolar Membrane, Endoplasmic Reticulum, and Lipid Droplets, Inducing Cell Death through Vacuole Membrane Permeabilization. J Fungi (Basel) 2021; 7:jof7110971. [PMID: 34829259 PMCID: PMC8623074 DOI: 10.3390/jof7110971] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/13/2021] [Indexed: 12/05/2022] Open
Abstract
Phenoxazine derivatives such as Nile Blue analogues are assumed to be increasingly relevant in cell biology due to their fluorescence staining capabilities and antifungal and anticancer activities. However, the mechanisms underlying their effects remain poorly elucidated. Using S. cerevisiae as a eukaryotic model, we found that BaP1, a novel 5- and 9-N-substituted benzo[a]phenoxazine synthesized in our laboratory, when used in low concentrations, accumulates and stains the vacuolar membrane and the endoplasmic reticulum. In contrast, at higher concentrations, BaP1 stains lipid droplets and induces a regulated cell death process mediated by vacuolar membrane permeabilization. BaP1 also induced mitochondrial fragmentation and depolarization but did not lead to ROS accumulation, changes in intracellular Ca2+, or loss of plasma membrane integrity. Additionally, our results show that the cell death process is dependent on the vacuolar protease Pep4p and that the vacuole permeabilization results in its translocation from the vacuole to the cytosol. In addition, although nucleic acids are commonly described as targets of benzo[a]phenoxazines, we did not find any alterations at the DNA level. Our observations highlight BaP1 as a promising molecule for pharmacological application, using vacuole membrane permeabilization as a targeted approach.
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Affiliation(s)
- João Carlos Canossa Ferreira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.L.); (A.P.)
- Campus of Gualtar, IBS-Institute of Science and Innovation for Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
- Centre of Chemistry, Department of Chemistry, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal;
- Correspondence: (J.C.C.F.); (M.J.S.)
| | - Carla Lopes
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.L.); (A.P.)
| | - Ana Preto
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.L.); (A.P.)
- Campus of Gualtar, IBS-Institute of Science and Innovation for Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
| | | | - Maria João Sousa
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus of Gualtar, University of Minho, 4710-057 Braga, Portugal; (C.L.); (A.P.)
- Campus of Gualtar, IBS-Institute of Science and Innovation for Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
- Correspondence: (J.C.C.F.); (M.J.S.)
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22
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Barradas Lopes J, Reis Ferreira A, Sousa MJ, Cadinha S. Anaphylactic Shock to Lidocaine: A Rare Case With Evaluation of Cross-Reactivity Between Local Anesthetics. J Investig Allergol Clin Immunol 2021; 31:449-450. [PMID: 34710051 DOI: 10.18176/jiaci.0658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- J Barradas Lopes
- Allergy and Clinical Immunology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, EPE, Vila Nova de Gaia, Portugal
| | - A Reis Ferreira
- Allergy and Clinical Immunology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, EPE, Vila Nova de Gaia, Portugal
| | - M J Sousa
- Allergy and Clinical Immunology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, EPE, Vila Nova de Gaia, Portugal
| | - S Cadinha
- Allergy and Clinical Immunology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, EPE, Vila Nova de Gaia, Portugal
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Basto R, Cunha Pereira T, Rei L, Rêgo Salgueiro F, Magalhães J, Sousa MJ, Monteiro AR, Macedo F, Soares RF, Carvalho T, Jacinto P, Sousa G. Giant Metastatic Breast Phyllodes Tumour with an Elusive Diagnosis: A Case Report and Literature Review. Eur J Case Rep Intern Med 2021; 8:002763. [PMID: 34527624 DOI: 10.12890/2021_002763] [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: 07/07/2021] [Accepted: 07/18/2021] [Indexed: 11/05/2022] Open
Abstract
Background The term phyllodes tumours, which account for less than 1% of breast neoplasms, describes a spectrum of heterogenous tumours with different clinical behaviours. Less than 30% present as metastatic disease. Complete surgical resection is the standard of care so that recurrence rates are reduced. The role of adjuvant chemotherapy or radiation therapy is controversial. Patients with metastatic disease have a median overall survival of around 30 months. Case description The authors present the case of a 57-year-old woman with an exuberant left malignant phyllodes tumour with bilateral involvement, as well as lung and axillar metastasis. The patient underwent haemostatic radiation therapy and started palliative chemotherapy with doxorubicin, achieving partial response with significant improvement in quality of life. A posterior simple mastectomy revealed a small residual tumour. Discussion Metastatic malignant phyllodes tumours are rare, so therapeutic strategies rely on small retrospective studies and guidelines for soft tissue sarcoma. Palliative chemotherapy protocols include anthracycline-based regimens, either as monotherapy with doxorubicin or doxorubicin together with ifosfamide. With few treatment options, management of these patients must rely on a continuum of care. LEARNING POINTS Phyllodes tumours are a rare type of breast neoplasm.The differential diagnosis of breast cancer should include phyllodes tumours.Accurate and rapid diagnosis is required.
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Affiliation(s)
- Raquel Basto
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Tatiana Cunha Pereira
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Luís Rei
- Anatomic Pathology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Fábio Rêgo Salgueiro
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Joana Magalhães
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Maria João Sousa
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Ana Raquel Monteiro
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Filipa Macedo
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Rita Félix Soares
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Teresa Carvalho
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Paula Jacinto
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
| | - Gabriela Sousa
- Medical Oncology Department, Portuguese Oncology Institute of Coimbra Francisco Gentil, Coimbra, Portugal
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Sousa MJ, Basto R, Magalhães JC, Costa C, Garcia R, Domingues I, Jesus E, Sousa G. P14.81 Brain metastases of lung adenocarcinoma - Clinicopathological profile and outcomes of a single-centre. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab180.185] [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] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Brain metastases (BM) in patients with non-small cell lung cancer (NSCLC) are considered a major determinant of overall survival (OS). Historically, surgical resection (SR), stereotactic radiosurgery (SRS), or/and whole-brain radiation therapy (WBRT) followed by chemotherapy has been the treatment modalities for BM from lung adenocarcinoma. Recent insights into the biology of adenocarcinoma have led to a wealth of novel therapies, including tyrosine kinase inhibitors (TKIs). Here, we review the pattern of brain metastasis in lung adenocarcinoma patients and management strategies in our centre.
MATERIAL AND METHODS
We performed a single-centre retrospective analysis of patients with lung adenocarcinoma and BM between 2017–2020. Data were collected from electronic medical records, including clinical and histopathological features and outcomes. Survival curves were estimated with the Kaplan-Meier method and compared using the log-rank test.
RESULTS
We identified 29 patients, 65% male, median age 65 years (range 38–84); 55% ECOG PS 0–1; 59% smokers; 55% had extracranial metastases (ECM) and 66% were symptomatic, 24% were EGFR mutated, the frequency of ALK rearrangement was 14%, in 14% the molecular testing was not performed. We treated 59% with WBRT, 12% with SRS, 11% with SR+WBRT and 4% with SR+SRS; 14% were referred for palliative care. Clinical deterioration during local therapy was observed in 32% of the patients and, consequently, they haven’t undergone systemic treatment. After local treatment, 26% received chemotherapy (CT) and 28% received TKIs therapy. Median OS (mOS) was 11.3 months (95% CI 2.4–20.3) for the CT subgroup; mOS for the TKIs subgroup was not reached, but the 1-year survival rate was 67%.
CONCLUSION
BM confers a worse prognosis in lung adenocarcinoma patients. Currently, targeted systemic treatments in patients with driver mutations improve survival and have demonstrated efficacy in lung adenocarcinoma metastatic to the brain. Further research is needed to find better treatments for BM in NSCLC patients with no driver mutations.
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Affiliation(s)
- M J Sousa
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - R Basto
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - J C Magalhães
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - C Costa
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - R Garcia
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - I Domingues
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - E Jesus
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - G Sousa
- Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
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25
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Fernandes T, Silva-Sousa F, Pereira F, Rito T, Soares P, Franco-Duarte R, Sousa MJ. Biotechnological Importance of Torulaspora delbrueckii: From the Obscurity to the Spotlight. J Fungi (Basel) 2021; 7:jof7090712. [PMID: 34575750 PMCID: PMC8467266 DOI: 10.3390/jof7090712] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 08/09/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/28/2022] Open
Abstract
Torulaspora delbrueckii has attracted interest in recent years, especially due to its biotechnological potential, arising from its flavor- and aroma-enhancing properties when used in wine, beer or bread dough fermentation, as well as from its remarkable resistance to osmotic and freezing stresses. In the present review, genomic, biochemical, and phenotypic features of T. delbrueckii are described, comparing them with other species, particularly with the biotechnologically well-established yeast, Saccharomyces cerevisiae. We conclude about the aspects that make this yeast a promising biotechnological model to be exploited in a wide range of industries, particularly in wine and bakery. A phylogenetic analysis was also performed, using the core proteome of T. delbrueckii, to compare the number of homologous proteins relative to the most closely related species, understanding the phylogenetic placement of this species with robust support. Lastly, the genetic tools available for T. delbrueckii improvement are discussed, focusing on adaptive laboratorial evolution and its potential.
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Affiliation(s)
- Ticiana Fernandes
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Flávia Silva-Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Fábio Pereira
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Teresa Rito
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Pedro Soares
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Ricardo Franco-Duarte
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
- Correspondence: or ; Tel.: +351-253-604-310; Fax: +351-253-678-980
| | - Maria João Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (T.F.); (F.S.-S.); (F.P.); (T.R.); (P.S.); (M.J.S.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
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26
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Ferraz L, Sauer M, Sousa MJ, Branduardi P. The Plasma Membrane at the Cornerstone Between Flexibility and Adaptability: Implications for Saccharomyces cerevisiae as a Cell Factory. Front Microbiol 2021; 12:715891. [PMID: 34434179 PMCID: PMC8381377 DOI: 10.3389/fmicb.2021.715891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/27/2021] [Accepted: 07/19/2021] [Indexed: 11/23/2022] Open
Abstract
In the last decade, microbial-based biotechnological processes are paving the way toward sustainability as they implemented the use of renewable feedstocks. Nonetheless, the viability and competitiveness of these processes are often limited due to harsh conditions such as: the presence of feedstock-derived inhibitors including weak acids, non-uniform nature of the substrates, osmotic pressure, high temperature, extreme pH. These factors are detrimental for microbial cell factories as a whole, but more specifically the impact on the cell’s membrane is often overlooked. The plasma membrane is a complex system involved in major biological processes, including establishing and maintaining transmembrane gradients, controlling uptake and secretion, intercellular and intracellular communication, cell to cell recognition and cell’s physical protection. Therefore, when designing strategies for the development of versatile, robust and efficient cell factories ready to tackle the harshness of industrial processes while delivering high values of yield, titer and productivity, the plasma membrane has to be considered. Plasma membrane composition comprises diverse macromolecules and it is not constant, as cells adapt it according to the surrounding environment. Remarkably, membrane-specific traits are emerging properties of the system and therefore it is not trivial to predict which membrane composition is advantageous under certain conditions. This review includes an overview of membrane engineering strategies applied to Saccharomyces cerevisiae to enhance its fitness under industrially relevant conditions as well as strategies to increase microbial production of the metabolites of interest.
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Affiliation(s)
- Luís Ferraz
- Center of Molecular and Environmental Biology, University of Minho, Braga, Portugal.,Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Michael Sauer
- Department of Biotechnology, Institute of Microbiology and Microbial Biotechnology, BOKU University of Natural Resources and Life Sciences, Vienna, Austria
| | - Maria João Sousa
- Center of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
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Azevedo AMO, Vilaranda AG, Neves AFDC, Sousa MJ, Santos JLM, Saraiva MLMFS. Development of an automated yeast-based spectrophotometric method for toxicity screening: Application to ionic liquids, GUMBOS, and deep eutectic solvents. Chemosphere 2021; 277:130227. [PMID: 33794429 DOI: 10.1016/j.chemosphere.2021.130227] [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: 01/24/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Saccharomyces cerevisiae has been used as a eukaryotic model organism for studying the toxic effects of various compounds. In this context, an automated spectrophotometric method based on the enzymatic reduction of methylene blue dye to a colorless product by living yeast cells was implemented in a sequential injection analysis system. Loss of yeast viability/impaired metabolic activity was monitored by an increase in optical density at 664 nm. To prove the usefulness of this approach, the toxicity of ILs (ionic liquids), GUMBOS (group of uniform materials based on organic salts), and DESs (deep eutectic solvents) was examined. Differences obtained between IC50 values confirmed the impact of structural elements on each compounds' toxicity. While DESs appeared to be less toxic than ILs, GUMBOS were found to be among the most toxic compounds to yeast cells and thus can be viewed as promising antimicrobial candidates. The automated methodology showed satisfactory repeatability and reproducibility (RSD < 9%), which is in good agreement with Green Chemistry principles. In fact, the method required consumption of only 40 μL of reagents and produced less than 2 mL of effluents per cycle. Thus, the developed assay can be used as an alternative tool for toxicity screening.
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Affiliation(s)
- Ana M O Azevedo
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - André G Vilaranda
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Ana F D C Neves
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Maria João Sousa
- CBMA, Departamento de Biologia, Universidade do Minho, Braga, Portugal
| | - João L M Santos
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - M Lúcia M F S Saraiva
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Basto R, Pereira T, Sousa MJ, Magalhães JC, Khouri L, Serra TQ, Pires I, Nobre AR, Garcia AR, Teixeira MM. P-180 Nasopharyngeal carcinoma: casuistic of an oncological center. Oral Oncol 2021. [DOI: 10.1016/s1368-8375(21)00465-6] [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: 10/21/2022]
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29
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Magalhães JC, Sousa MJ, Basto R, Garcia AR, Serra TQ, Khouri L, Pires I, Nobre R, Portugal E, Branquinho F, Teixeira MM. Association of anemia and hematological inflammatory biomarkers with response to concurrent chemoradiotherapy on patients with squamous cell carcinoma of the head and neck. Oral Oncol 2021. [DOI: 10.1016/s1368-8375(21)00263-3] [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: 11/25/2022]
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30
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Chaves SR, Rego A, Martins VM, Santos-Pereira C, Sousa MJ, Côrte-Real M. Regulation of Cell Death Induced by Acetic Acid in Yeasts. Front Cell Dev Biol 2021; 9:642375. [PMID: 34249904 PMCID: PMC8264433 DOI: 10.3389/fcell.2021.642375] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 12/15/2020] [Accepted: 05/04/2021] [Indexed: 11/15/2022] Open
Abstract
Acetic acid has long been considered a molecule of great interest in the yeast research field. It is mostly recognized as a by-product of alcoholic fermentation or as a product of the metabolism of acetic and lactic acid bacteria, as well as of lignocellulosic biomass pretreatment. High acetic acid levels are commonly associated with arrested fermentations or with utilization as vinegar in the food industry. Due to its obvious interest to industrial processes, research on the mechanisms underlying the impact of acetic acid in yeast cells has been increasing. In the past twenty years, a plethora of studies have addressed the intricate cascade of molecular events involved in cell death induced by acetic acid, which is now considered a model in the yeast regulated cell death field. As such, understanding how acetic acid modulates cellular functions brought about important knowledge on modulable targets not only in biotechnology but also in biomedicine. Here, we performed a comprehensive literature review to compile information from published studies performed with lethal concentrations of acetic acid, which shed light on regulated cell death mechanisms. We present an historical retrospective of research on this topic, first providing an overview of the cell death process induced by acetic acid, including functional and structural alterations, followed by an in-depth description of its pharmacological and genetic regulation. As the mechanistic understanding of regulated cell death is crucial both to design improved biomedical strategies and to develop more robust and resilient yeast strains for industrial applications, acetic acid-induced cell death remains a fruitful and open field of study.
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Affiliation(s)
- Susana R Chaves
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - António Rego
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Vítor M Martins
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Cátia Santos-Pereira
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal.,Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, Braga, Portugal
| | - Maria João Sousa
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Manuela Côrte-Real
- Centre of Biological and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
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31
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Donzella L, Varela JA, Sousa MJ, Morrissey JP. Identification of novel pentose transporters in Kluyveromyces marxianus using a new screening platform. FEMS Yeast Res 2021; 21:6247623. [PMID: 33890624 PMCID: PMC8110514 DOI: 10.1093/femsyr/foab026] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 04/21/2021] [Indexed: 11/29/2022] Open
Abstract
The capacity of yeasts to assimilate xylose or arabinose is strongly dependent on plasma membrane transport proteins. Because pentoses comprise a substantial proportion of available sugars in lignocellulosic hydrolysates, their utilisation is centrally important for the development of second generation biorefineries. Relatively few native pentose transporters have been studied and there is intense interest in expanding the repertoire. To aid the identification of novel transporters, we developed a screening platform in the native pentose-utilising yeast Kluyveromyces marxianus. This involved the targeted deletion of twelve transporters of the major facilitator superfamily (MFS) and application of a synthetic biology pipeline for rapid testing of candidate pentose transporters. Using this K. marxianus ΔPT platform, we identified several K. marxianus putative xylose or arabinose transporter proteins that recovered a null strain's ability to growth on these pentoses. Four proteins of the HGT-family were able to support growth in media with high or low concentrations of either xylose or arabinose, while six HXT-like proteins displayed growth only at high xylose concentrations, indicating solely low affinity transport activity. The study offers new insights into the evolution of sugar transporters in yeast and expands the set of native pentose transporters for future functional and biotechnological studies.
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Affiliation(s)
- Lorena Donzella
- School of Microbiology, Environmental Research Institute, APC Microbiome Institute, University College Cork, Cork T12 K8AF, Ireland.,Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, R. da Universidade, Braga 4710-057, Portugal
| | - Javier A Varela
- School of Microbiology, Environmental Research Institute, APC Microbiome Institute, University College Cork, Cork T12 K8AF, Ireland
| | - Maria João Sousa
- Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, R. da Universidade, Braga 4710-057, Portugal
| | - John P Morrissey
- School of Microbiology, Environmental Research Institute, APC Microbiome Institute, University College Cork, Cork T12 K8AF, Ireland
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Pacheco A, Donzella L, Hernandez-Lopez MJ, Almeida MJ, Prieto JA, Randez-Gil F, Morrissey JP, Sousa MJ. Hexose transport in Torulaspora delbrueckii: identification of Igt1, a new dual-affinity transporter. FEMS Yeast Res 2021; 20:5715911. [PMID: 31981362 DOI: 10.1093/femsyr/foaa004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 12/08/2019] [Accepted: 01/24/2020] [Indexed: 01/23/2023] Open
Abstract
Torulaspora delbrueckii is a yeast species receiving increasing attention from the biotechnology industry, with particular relevance in the wine, beer and baking sectors. However, little is known about its sugar transporters and sugar transport capacity, frequently a rate-limiting step of sugar metabolism and efficient fermentation. Actually, only one glucose transporter, Lgt1, has been characterized so far. Here we report the identification and characterization of a second glucose transporter gene, IGT1, located in a cluster, upstream of LGT1 and downstream of two other putative hexose transporters. Functional characterization of IGT1 in a Saccharomyces cerevisiae hxt-null strain revealed that it encodes a transporter able to mediate uptake of glucose, fructose and mannose and established that its affinity, as measured by Km, could be modulated by glucose concentration in the medium. In fact, IGT1-transformed S. cerevisiae hxt-null cells, grown in 0.1% glucose displayed biphasic glucose uptake kinetics with an intermediate- (Km = 6.5 ± 2.0 mM) and a high-affinity (Km = 0.10 ± 0.01 mM) component, whereas cells grown in 2% glucose displayed monophasic kinetics with an intermediate-affinity (Km of 11.5 ± 1.5 mM). This work contributes to a better characterization of glucose transport in T. delbrueckii, with relevant implications for its exploitation in the food industry.
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Affiliation(s)
- Andreia Pacheco
- Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Lorena Donzella
- Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- School of Microbiology, Centre for Synthetic Biology and Biotechnology, Environmental Research Institute, APC Microbiome Institute, University College Cork, T12YT20 Cork, Ireland
| | - Maria Jose Hernandez-Lopez
- Department of Biotechnology, Instituto de Agroqumica y Tecnologia de los Alimentos, Consejo Superior de Investigaciones Cientficas, Avda. Agustn Escardino, 7. 46980-Paterna, Valencia, Spain
| | - Maria Judite Almeida
- Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Jose Antonio Prieto
- Department of Biotechnology, Instituto de Agroqumica y Tecnologia de los Alimentos, Consejo Superior de Investigaciones Cientficas, Avda. Agustn Escardino, 7. 46980-Paterna, Valencia, Spain
| | - Francisca Randez-Gil
- Department of Biotechnology, Instituto de Agroqumica y Tecnologia de los Alimentos, Consejo Superior de Investigaciones Cientficas, Avda. Agustn Escardino, 7. 46980-Paterna, Valencia, Spain
| | - John P Morrissey
- School of Microbiology, Centre for Synthetic Biology and Biotechnology, Environmental Research Institute, APC Microbiome Institute, University College Cork, T12YT20 Cork, Ireland
| | - Maria João Sousa
- Centre of Environmental and Molecular Biology, Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
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Sousa RPCL, Ferreira JCC, Sousa MJ, Gonçalves MST. N-(5-Amino-9 H-benzo[ a]phenoxazin-9-ylidene)propan-1-aminium chlorides as antifungal agents and NIR fluorescent probes. NEW J CHEM 2021. [DOI: 10.1039/d1nj00879j] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
New benzo[a]phenoxazinium chlorides (λemi ≤ 683 nm, ΦF ≤ 0.24, at pH = 7.4), best MIC 6.25 μM in Saccharomyces cerevisiae, stain vacuolar/perinuclear membranes of cells.
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Affiliation(s)
- Rui P. C. L. Sousa
- Centre of Chemistry
- Department of Chemistry
- University of Minho
- 4710-057 Braga
- Portugal
| | - João C. C. Ferreira
- Centre of Chemistry
- Department of Chemistry
- University of Minho
- 4710-057 Braga
- Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology
- Department of Biology
- University of Minho
- 4710-057 Braga
- Portugal
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34
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Sousa MJ, Moutinho A, Almeida M. Thermal Infrared Sensing for Near Real-Time Data-Driven Fire Detection and Monitoring Systems. Sensors (Basel) 2020; 20:s20236803. [PMID: 33260498 PMCID: PMC7730462 DOI: 10.3390/s20236803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022]
Abstract
With the increasing interest in leveraging mobile robotics for fire detection and monitoring arises the need to design recognition technology systems for these extreme environments. This work focuses on evaluating the sensing capabilities and image processing pipeline of thermal imaging sensors for fire detection applications, paving the way for the development of autonomous systems for early warning and monitoring of fire events. The contributions of this work are threefold. First, we overview image processing algorithms used in thermal imaging regarding data compression and image enhancement. Second, we present a method for data-driven thermal imaging analysis designed for fire situation awareness in robotic perception. A study is undertaken to test the behavior of the thermal cameras in controlled fire scenarios, followed by an in-depth analysis of the experimental data, which reveals the inner workings of these sensors. Third, we discuss key takeaways for the integration of thermal cameras in robotic perception pipelines for autonomous unmanned aerial vehicle (UAV)-based fire surveillance.
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Affiliation(s)
- Maria João Sousa
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal;
- Correspondence:
| | - Alexandra Moutinho
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal;
| | - Miguel Almeida
- ADAI, University of Coimbra, Rua Pedro Hispano, 12, 3030-289 Coimbra, Portugal;
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35
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Amaral L, Mendes F, Côrte-Real M, Sousa MJ, Chaves SR. Lactate Induces Cisplatin Resistance in S. cerevisiae through a Rad4p-Dependent Process. Oxid Med Cell Longev 2020; 2020:4971525. [PMID: 33163143 PMCID: PMC7604607 DOI: 10.1155/2020/4971525] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 09/09/2020] [Accepted: 09/30/2020] [Indexed: 12/02/2022]
Abstract
Cisplatin is a widely used antineoplastic agent that has DNA as the main target, though cellular resistance hampers its therapeutic efficacy. An emerging hallmark of cancer cells is their altered metabolism, characterized by increased glycolysis even under aerobic conditions, with increased lactate production (known as the Warburg effect). Although this altered metabolism often results in increased resistance to chemotherapy, it also provides an opportunity for targeted therapeutic intervention. It has been suggested that cisplatin cytotoxicity can be affected by tumor metabolism, though with varying effects. We therefore sought to better characterize how lactate affects cisplatin sensitivity in the simplified Saccharomyces cerevisiae model. We show that lactate renders yeast cells resistant to cisplatin, independently of growth rate or respiration ability. We further show that histone acetylation is not affected, but histone phosphorylation is decreased in lactate-containing media. Finally, we show that Rad4p, essential for nucleotide excision repair, is required for the observed phenotype and thus likely underlies the mechanism responsible for lactate-mediated resistance to cisplatin. Overall, understanding how lactate modulates cisplatin sensitivity will aid in the development of new strategies to overcome drug resistance.
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Affiliation(s)
- Leslie Amaral
- Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Filipa Mendes
- Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Manuela Côrte-Real
- Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Maria João Sousa
- Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Susana Rodrigues Chaves
- Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Mota I, Sánchez-Sánchez J, Pedro LG, Sousa MJ. Composition variation of the essential oil from Ocimum basilicum L. cv. Genovese Gigante in response to Glomus intraradices and mild water stress at different stages of growth. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pereira L, Magalhães J, Mendonça L, Diniz H, Sousa MJ, Neto R, Carvalho C, Oliveira A, Beco A, Frazao JM. SO070THE SPECTRUM OF RENAL OSTEODYSTROPHY IN PREVALENT PERITONEAL DIALYSIS PATIENTS IN 21ST CENTURY - A HISTOMORPHOMETRIC ANALYSIS OF BONE BIOPSIES. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa139.so070] [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] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and Aims
The spectrum of renal osteodystrophy (ROD) in peritoneal dialysis (PD) patients remains to be clarified. Most studies are old and the results inconsistent. Also there were changes in clinical practice that may have influenced the bone histology in PD patients.
Method
In order to characterize ROD in prevalent PD population, we performed tetracycline-labelled bone biopsies in 49 PD patients with histomorphometric analysis according KDIGO guidelines. Exclusion criteria: history of kidney transplant, hemodialysis, treatment with agents interfering in bone metabolism (for example bisphosphonates). Hands and pelvis x-ray were performed to evaluate vascular calcification (VC) and to calculate the Adragão score. All patients were treated with biocompatible PD solutions, with calcium concentration of 1.25 mmol/L.
Results
Forty-nine patients participated in the study, with 32 biopsies analyzed so far. Mean age was 52.4±10.9 years, 16 male, 6 with diabetes mellitus, 23 on manual PD, median time on PD was 22.1 (3-61) months. Mean calcium, phosphate and PTH were 9.2±0.5 mg/dL, 4.9±1.0 mg/dL and 489.87±227.8 pg/mL, respectively. Vascular calcification was detected in 29% of patients and mean Adragão score was 1.13. Essential histomorphometric and selected data is represented in table 1:
Bone volume (BV) tended to be lower in diabetics - 17.1% (10.1-23.1) compared with non-diabetics – 22.6% (12.7-41.4) (p=0.07). Median bone formation rate (BFR) tended to be lower - 21.39 µm3/µm2/y (8.2-53.2) in diabetic patients than in non-diabetics - 28.63 µm3/µm2/y (3.5-89.77) (p=0.80). PTH levels also tended to be lower in diabetics – 384.8 pg/mL compared to non-diabetics – 514.1 pg/mL (p=0.14).
BV tended to be lower in patients with VC – 19.1% (10.1-27) compared with patients without VC - 22.6% (12.7-41.4) (p=0.23).
VC was detected on x-ray in all 6 patients with diabetes and only in 11.5% (3 in 26) of non-diabetic patients.
Conclusion
Similar to previous reports, the most frequent ROD pattern was ABD. However, PD patients with ABD had mean PTH of 405 pg/mL, a value well within the recommended KDIGO targets. This reinforces PTH as a far from ideal marker of bone turnover and suggests different targets for PTH levels in this seemingly highly susceptible population to ABD even when treated with low calcium dialysate.
The proportion of patients with normal bone was higher than previously published. This finding can be explained by differences in the classification of ROD and prescription of biocompatible PD solutions in all patients.
Diabetic patients tended to have lower BV and BFR. This finding is not surprising considering osteoblastic toxicity caused by advanced glycation end products. Also diabetic patients have a state of relative hypoparathyroidism.
In conclusion, the most frequent pattern was ABD. Diabetic patients on PD may be a different subgroup.
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Affiliation(s)
- Luciano Pereira
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | - Juliana Magalhães
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
| | - Luís Mendonça
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | - Hugo Diniz
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | | | - Ricardo Neto
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | | | - Ana Oliveira
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | - Ana Beco
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
| | - Joao M Frazao
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Nephrology and Infectious Diseases Group, Porto, Portugal
- Faculty of Medicine, University of Porto, Nephrology, Porto, Portugal
- São João Hospital Center, Nephrology, Porto, Portugal
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Leitão MIPS, Rama Raju B, Cerqueira NMFSA, Sousa MJ, Gonçalves MST. Benzo[a]phenoxazinium chlorides: Synthesis, antifungal activity, in silico studies and evaluation as fluorescent probes. Bioorg Chem 2020; 98:103730. [PMID: 32199304 DOI: 10.1016/j.bioorg.2020.103730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 12/10/2019] [Revised: 03/05/2020] [Accepted: 03/05/2020] [Indexed: 12/16/2022]
Abstract
Four new benzo[a]phenoxazinium chlorides with combinations of chloride, ethyl ester and methyl as terminals of the amino substituents were synthesized. These compounds were characterized and their optical properties were studied in absolute dry ethanol and water. Their antiproliferative activity was tested against Saccharomyces cerevisiae in a broth microdilution assay, along with an array of 36 other benzo[a]phenoxazinium chlorides. Minimum Inhibitory Concentration (MIC) values between 1.56 and >200 µM were observed. Fluorescence microscopy studies, used to assess the intracellular distribution of the dyes, showed that these benzo[a]phenoxazinium chlorides function as efficient and site specific probes for the detection of the vacuole membrane. The added advantage of some of the compounds, that displayed the lower MIC values, was the simultaneous staining of both the vacuole membrane and the perinuclear membrane of endoplasmic reticulum (ER). Molecular docking studies were performed on the human membrane protein oxidosqualene cyclase (OSC), using the crystal structure available on PDB (code 1W6K). The results showed that these most active compounds accommodated better in the active sites of ER enzyme OSC suggesting this enzyme as a potential target. As a whole, the results demonstrate that the benzo[a]phenoxazinium chlorides are interesting alternatives to the available commercial dyes. Changes in the substituents of these compounds can tailor both their staining specificity and antimicrobial activity.
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Affiliation(s)
- Maria Inês P S Leitão
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Centre of Molecular and Environmental Biology/Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - B Rama Raju
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Centre of Physics, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Nuno M F S A Cerqueira
- REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Maria João Sousa
- Centre of Molecular and Environmental Biology/Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - M Sameiro T Gonçalves
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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Bragança B, Trêpa M, Santos R, Silveira I, Fontes-Oliveira M, Sousa MJ, Reis H, Torres S, Santos M. Echocardiographic Assessment of Right Ventriculo-arterial Coupling: Clinical Correlates and Prognostic Impact in Heart Failure Patients Undergoing Cardiac Resynchronization Therapy. J Cardiovasc Imaging 2020; 28:109-120. [PMID: 32052609 PMCID: PMC7114448 DOI: 10.4250/jcvi.2019.0094] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 10/13/2019] [Revised: 11/30/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Right ventriculo-arterial coupling (RV-PA) can be estimated by echocardiography using the ratio between tricuspid annular plane systolic excursion (TAPSE) and pulmonary artery systolic pressure (PASP) and it has prognostic value in the general heart failure (HF) population. We aimed to study the clinical correlates and prognostic value of RV-PA in HF patients undergoing cardiac resynchronization therapy (CRT). METHODS We retrospectively studied 70 HF patients undergoing CRT implantation. RESULTS RV-PA coupling was estimated by TAPSE/PASP ratio using baseline echocardiography. Non-response to CRT was defined as improvement of left ventricular ejection fraction < 5% in a follow-up echo 6-12 months after CRT. Those with lower TAPSE/PASP ratios (worse RV-PA coupling) had higher NT-proBNP concentrations and increased E/e' ratio. TAPSE/PASP ratio and PASP, but not TAPSE, predicted nonresponse to CRT with TAPSE/PASP ratio showing the best discriminative ability with a sensitivity of 76% and specificity of 71%. Among these parameters, PASP independently predicted all-cause mortality. CONCLUSIONS RV-PA coupling estimated by TAPSE/PASP ratio was associated with established prognostic markers in HF. It numerically outperformed PASP and TAPSE in predicting the response to CRT. Our data suggest that this simple and widely available echocardiographic parameter conveys significant pathophysiological and prognostic meaning in HF patients undergoing CRT.
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Affiliation(s)
- Bruno Bragança
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Maria Trêpa
- Centro Hospitalar Universitário do Porto, Porto, Portugal.
| | - Raquel Santos
- Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Inês Silveira
- Centro Hospitalar Universitário do Porto, Porto, Portugal
| | | | | | - Hipólito Reis
- Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Severo Torres
- Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Mário Santos
- Centro Hospitalar Universitário do Porto, Porto, Portugal
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Valentim Goncalves AA, Sousa MJ, Matos P, Pinto E, Banazol N, Branco L, Cruz Ferreira R. 476 An unusual location and size of a papillary fibroelastoma. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.255] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The incidence of primary cardiac tumours is low. Although histologically benign, left-sided, larger sized (≥ 1 cm) and highly mobile tumors have a higher risk of embolization.
Papillary fibroelastomas frequently occur on the aortic or mitral valves, with only 10% arising from nonvalvular surfaces. Since they are small and usually attached to moving valves, CT and MRI technique modalities have more difficulty in detecting them, with echocardiography remaining the most common exam for the diagnosis.
Clinical case description:
A 69-year-old woman, with known history of breast cancer treated with chest radiation ten years ago. She was completely asymptomatic, but in a routine echocardiography a left ventricular heterogeneous round mass with 22x25mm with a likely pedunculated attachment in the apical region was diagnosed. The remaining exam was remarkably normal, namely with normal left ventricular size and function with no wall motion abnormalities.
Because the wall motion appeared normal, the mass was interpreted as a tumour. However, a thrombus could not be excluded. After four weeks of therapy with Warfarin and aspirin, a MRI was performed. The apical mass had similar dimensions (22x23mm) and the exam was inconclusive (myxoma? fibroma? thrombus?) despite no signs of left ventricular fibrosis with late gadolinium enhancement.
Since the risk of embolization was high and there was no reduction in size with anticoagulation therapy, surgery was performed. Using a transaortic valve route, a 28x30mm mass with a pedunculated attachment in the apical region was removed. The mass had a macroscopic appearance of a sea anemone with gelatinous material. Histological examination made the final diagnosis of a papillary fibroelastoma.
Conclusion
Large, left-sided mobile tumors should be excised to prevent sudden death and embolization. Here we present the case of a papillary fibroelastoma with a rare localization and an unusual size. Some clinical cases have raised the question for a relation between previous chest radiotherapy and the occurrence of papillary fibroelastomas.
Abstract 476 Figure.
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Affiliation(s)
| | - M J Sousa
- Unidade Local de Saúde do Baixo Alentejo, Cardiology, Beja, Portugal
| | - P Matos
- CUF Infante de Santo, Cardiology, Lisbon, Portugal
| | - E Pinto
- Hospital de Santa Marta, Lisbon, Portugal
| | - N Banazol
- Hospital de Santa Marta, Lisbon, Portugal
| | - L Branco
- Hospital de Santa Marta, Lisbon, Portugal
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Providência R, Adragão P, de Asmundis C, Chun J, Chierchia G, Defaye P, Anselme F, Creta A, Lambiase PD, Schmidt B, Chen S, Cavaco D, Hunter RJ, Carmo J, Combes S, Honarbakhsh S, Combes N, Sousa MJ, Jebberi Z, Albenque J, Boveda S. Impact of Body Mass Index on the Outcomes of Catheter Ablation of Atrial Fibrillation: A European Observational Multicenter Study. J Am Heart Assoc 2019; 8:e012253. [PMID: 31581876 PMCID: PMC6818047 DOI: 10.1161/jaha.119.012253] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/12/2019] [Indexed: 12/26/2022]
Abstract
Background Outcomes of catheter ablation of atrial fibrillation (AF) are variable and the predictors of success require further elucidation since the identification of correctable risk factors could help to optimize therapy. We aimed to assess the impact of body mass index (BMI) in the overall safety and efficacy of catheter ablation of AF, with emphasis on the use of cryoballoon ablation and novel oral anticoagulants. Methods and Results There were 2497 consecutive patients undergoing catheter ablation of AF in 7 European high volume centers were stratified according to BMI (normal weight <25 kg/m2, pre-obese 25-30 kg/m2, obesity 30-35 kg/m2, and morbid obesity ≥35 kg/m2) and comparisons of procedural outcomes evaluated. Pre-obese and obese patients presented more comorbidities (hypertension, diabetes mellitus, and sleep apnea), and had higher rates of non-paroxysmal AF ablation procedures. The rate of atrial 12-month arrhythmia relapse increased alongside with BMI (35.2%, 35.7%, 43.6%, and 48.0% P<0.001). During a median follow-up of 18.8 months (interquartile range 11-28), after adjusting for all baseline differences, BMI was an independent predictor of relapse (hazard ratio=1.01 per kg/m2; 95% CI 1.01-1.02; P=0.002), adding incremental predictive value to obstructive sleep apnea. BMI was not a predictor for any of the reported complications. Using novel oral anticoagulants and cryoballoon ablation was safe and efficacy was comparable with vitamin-K antagonists and radiofrequency ablation. Conclusions Obese patients present with a more adverse comorbidity profile, more advanced forms of AF, and have lower chances of being free from AF relapse after ablation. Use of novel oral anticoagulants and cryoballoon ablation may be an option in this patient group.
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Affiliation(s)
- Rui Providência
- Clinic Pasteur of ToulouseToulouseFrance
- St. Bartholomew's HospitalBarts Health NHS TrustLondonUnited Kingdom
- Institute of Health Informatics ResearchUniversity College of LondonUnited Kingdom
| | - Pedro Adragão
- Cardiology DepartmentHospital de Santa CruzLisbonPortugal
| | - Carlo de Asmundis
- Heart Rhythm Management CentreUniversiteit Ziekenhuis BrusselBelgium
- Postgraduate program in Cardiac Electrophysiology and PacingVrije Universiteit BrusselBelgium
| | - Julian Chun
- Cardioangiologisches Centrum BethanienMedizinische Klinik III, Markus KrankenhausFrankfurt am MainGermany
| | - Gianbattista Chierchia
- Heart Rhythm Management CentreUniversiteit Ziekenhuis BrusselBelgium
- Postgraduate program in Cardiac Electrophysiology and PacingVrije Universiteit BrusselBelgium
| | | | | | - Antonio Creta
- St. Bartholomew's HospitalBarts Health NHS TrustLondonUnited Kingdom
| | - Pier D. Lambiase
- St. Bartholomew's HospitalBarts Health NHS TrustLondonUnited Kingdom
| | - Boris Schmidt
- Cardioangiologisches Centrum BethanienMedizinische Klinik III, Markus KrankenhausFrankfurt am MainGermany
| | - Shaojie Chen
- Cardioangiologisches Centrum BethanienMedizinische Klinik III, Markus KrankenhausFrankfurt am MainGermany
| | - Diogo Cavaco
- Cardiology DepartmentHospital de Santa CruzLisbonPortugal
| | - Ross J. Hunter
- St. Bartholomew's HospitalBarts Health NHS TrustLondonUnited Kingdom
| | - João Carmo
- Cardiology DepartmentHospital de Santa CruzLisbonPortugal
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Alves JG, Sarmento S, Pereira JS, Pereira MF, Sousa MJ, Cunha L, Dias A, Oliveira AD, Cardoso JV, Santos LM, Lencart J, Gouvêa M, Santos JAM. Dose to the interventional radiologist in CTF-guided procedures. Radiat Environ Biophys 2019; 58:373-384. [PMID: 30993431 DOI: 10.1007/s00411-019-00792-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 08/30/2018] [Accepted: 04/06/2019] [Indexed: 06/09/2023]
Abstract
The aim of this work was to assess the occupational dose received by an interventional radiologist (IR) during computed tomography fluoroscopy (CTF)-guided procedures; to identify the most exposed areas of the body including the hands and fingers; to suggest recommendations for individual monitoring; and to improve radiation safety of the practice. A total of 53 CTF-guided procedures were studied. Twelve whole-body dosimeters were worn by the IR in each procedure for the assessment of the personal dose equivalent, Hp(10), on the chest, waist, and back, both over and under the lead apron, as well as the personal dose equivalent, Hp(0.07), on both arms, knees, and feet. Special gloves with casings to fit extremity dosimeters were prepared to assess Hp(0.07) to the fingers. The measured chest dose values were higher than those on the waist and back; the dominant hand or the left side was the most exposed. In general, the ring, middle, and index fingers of the dominant hand were the most exposed (maximum in the 36-39 mSv range), while wrist dose was negligible compared to finger doses. Based on the results obtained the following recommendations are suggested: protective devices (lead aprons, thyroid shield, and goggles) should be worn; Hp(10) should be assessed at the chest level both above and below the lead apron; finger doses can be measured on the basis of each middle finger; the arm closer to the beam should be monitored; and finally, a wrist dosimeter will not provide useful information.
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Affiliation(s)
- J G Alves
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal.
- Departamento de Engenharia e Ciências Nucleares (DECN), Centro de Ciências e Tecnologias Nucleares (C2TN), UL-IST, Bobadela LRS, Portugal.
| | - S Sarmento
- Instituto Português de Oncologia do Porto Francisco Gentil, EPE (IPOPFG E.P.E.), Serviço de Física Médica, Rua Dr. António Bernardino de Almeida, 4200-072, Porto, Portugal
- Centro de Investigação, IPOPFG E.P.E., Porto, Portugal
| | - J S Pereira
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal
- Departamento de Engenharia e Ciências Nucleares (DECN), Centro de Ciências e Tecnologias Nucleares (C2TN), UL-IST, Bobadela LRS, Portugal
| | - M F Pereira
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal
- Departamento de Engenharia e Ciências Nucleares (DECN), Centro de Ciências e Tecnologias Nucleares (C2TN), UL-IST, Bobadela LRS, Portugal
| | - M J Sousa
- Serviço de Radiologia de Intervenção, IPOPFG E.P.E., Porto, Portugal
| | - L Cunha
- Instituto Português de Oncologia do Porto Francisco Gentil, EPE (IPOPFG E.P.E.), Serviço de Física Médica, Rua Dr. António Bernardino de Almeida, 4200-072, Porto, Portugal
- Centro de Investigação, IPOPFG E.P.E., Porto, Portugal
| | - A Dias
- Instituto Português de Oncologia do Porto Francisco Gentil, EPE (IPOPFG E.P.E.), Serviço de Física Médica, Rua Dr. António Bernardino de Almeida, 4200-072, Porto, Portugal
- Centro de Investigação, IPOPFG E.P.E., Porto, Portugal
| | - A D Oliveira
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal
- Departamento de Engenharia e Ciências Nucleares (DECN), Centro de Ciências e Tecnologias Nucleares (C2TN), UL-IST, Bobadela LRS, Portugal
| | - J V Cardoso
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal
| | - L M Santos
- Instituto Superior Técnico (IST), Laboratório de Proteção e Segurança Radiológica (LPSR), Universidade de Lisboa (UL), Estrada Nacional 10 (ao km 139,7), 2695-066, Bobadela LRS, Portugal
| | - J Lencart
- Instituto Português de Oncologia do Porto Francisco Gentil, EPE (IPOPFG E.P.E.), Serviço de Física Médica, Rua Dr. António Bernardino de Almeida, 4200-072, Porto, Portugal
| | - M Gouvêa
- Serviço de Radiologia, IPOPFG E.P.E., Porto, Portugal
| | - J A M Santos
- Instituto Português de Oncologia do Porto Francisco Gentil, EPE (IPOPFG E.P.E.), Serviço de Física Médica, Rua Dr. António Bernardino de Almeida, 4200-072, Porto, Portugal
- Centro de Investigação, IPOPFG E.P.E., Porto, Portugal
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Barroso MR, Martins N, Barros L, Antonio AL, Rodrigues MÂ, Sousa MJ, Santos-Buelga C, Ferreira ICFR. Assessment of the nitrogen fertilization effect on bioactive compounds of frozen fresh and dried samples of Stevia rebaudiana Bertoni. Food Chem 2018; 243:208-213. [PMID: 29146330 DOI: 10.1016/j.foodchem.2017.09.137] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 07/04/2017] [Revised: 08/21/2017] [Accepted: 09/26/2017] [Indexed: 11/16/2022]
Abstract
The present study aims to assess the effect of different nitrogen (N) rates on the chemical composition and antioxidant properties of stevia frozen fresh and dried leaves, and to define the best growing conditions to maximize the levels of bioactive compounds. In general, processing affects more significantly the tocopherol and sugar contents than N fertilization. The most abundant sugars were xylose, arabinose + fructose and sucrose, presenting dried samples with higher contents than frozen fresh ones, while the latter better retained tocopherols than dry samples. Regarding phenolic compounds, greater levels were found in dried samples and in those fertilized with 25 kg N ha-1. Leaves from plants fertilized with 25 and 50 kg N ha-1 also evidenced higher antioxidant activity, which seemed to be influenced by the phenolic composition. In general, N fertilization provides an improvement in the chemical composition and bioactive potential of stevia leaves.
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Affiliation(s)
- Marisa R Barroso
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Grupo de Investigación en Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007 Salamanca, Spain
| | - Natália Martins
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Amilcar L Antonio
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - M Ângelo Rodrigues
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Maria João Sousa
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Celestino Santos-Buelga
- Grupo de Investigación en Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007 Salamanca, Spain
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
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Santos J, Leitão-Correia F, Sousa MJ, Leão C. Nitrogen and carbon source balance determines longevity, independently of fermentative or respiratory metabolism in the yeast Saccharomyces cerevisiae. Oncotarget 2018; 7:23033-42. [PMID: 27072582 PMCID: PMC5029608 DOI: 10.18632/oncotarget.8656] [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] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 03/28/2016] [Indexed: 12/31/2022] Open
Abstract
Dietary regimens have proven to delay aging and age-associated diseases in several eukaryotic model organisms but the input of nutritional balance to longevity regulation is still poorly understood. Here, we present data on the role of single carbon and nitrogen sources and their interplay in yeast longevity. Data demonstrate that ammonium, a rich nitrogen source, decreases chronological life span (CLS) of the prototrophic Saccharomyces cerevisiae strain PYCC 4072 in a concentration-dependent manner and, accordingly, that CLS can be extended through ammonium restriction, even in conditions of initial glucose abundance. We further show that CLS extension depends on initial ammonium and glucose concentrations in the growth medium, as long as other nutrients are not limiting. Glutamine, another rich nitrogen source, induced CLS shortening similarly to ammonium, but this effect was not observed with the poor nitrogen source urea. Ammonium decreased yeast CLS independently of the metabolic process activated during aging, either respiration or fermentation, and induced replication stress inhibiting a proper cell cycle arrest in G0/G1 phase. The present results shade new light on the nutritional equilibrium as a key factor on cell longevity and may contribute for the definition of interventions to promote life span and healthy aging.
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Affiliation(s)
- Júlia Santos
- 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
| | - Fernanda Leitão-Correia
- Molecular and Environmental Biology Centre (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Maria João Sousa
- Molecular and Environmental Biology Centre (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Cecília Leão
- 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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Carmona-Gutierrez D, Bauer MA, Zimmermann A, Aguilera A, Austriaco N, Ayscough K, Balzan R, Bar-Nun S, Barrientos A, Belenky P, Blondel M, Braun RJ, Breitenbach M, Burhans WC, Büttner S, Cavalieri D, Chang M, Cooper KF, Côrte-Real M, Costa V, Cullin C, Dawes I, Dengjel J, Dickman MB, Eisenberg T, Fahrenkrog B, Fasel N, Fröhlich KU, Gargouri A, Giannattasio S, Goffrini P, Gourlay CW, Grant CM, Greenwood MT, Guaragnella N, Heger T, Heinisch J, Herker E, Herrmann JM, Hofer S, Jiménez-Ruiz A, Jungwirth H, Kainz K, Kontoyiannis DP, Ludovico P, Manon S, Martegani E, Mazzoni C, Megeney LA, Meisinger C, Nielsen J, Nyström T, Osiewacz HD, Outeiro TF, Park HO, Pendl T, Petranovic D, Picot S, Polčic P, Powers T, Ramsdale M, Rinnerthaler M, Rockenfeller P, Ruckenstuhl C, Schaffrath R, Segovia M, Severin FF, Sharon A, Sigrist SJ, Sommer-Ruck C, Sousa MJ, Thevelein JM, Thevissen K, Titorenko V, Toledano MB, Tuite M, Vögtle FN, Westermann B, Winderickx J, Wissing S, Wölfl S, Zhang ZJ, Zhao RY, Zhou B, Galluzzi L, Kroemer G, Madeo F. Guidelines and recommendations on yeast cell death nomenclature. Microb Cell 2018; 5:4-31. [PMID: 29354647 PMCID: PMC5772036 DOI: 10.15698/mic2018.01.607] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/29/2017] [Indexed: 12/18/2022]
Abstract
Elucidating the biology of yeast in its full complexity has major implications for science, medicine and industry. One of the most critical processes determining yeast life and physiology is cel-lular demise. However, the investigation of yeast cell death is a relatively young field, and a widely accepted set of concepts and terms is still missing. Here, we propose unified criteria for the defi-nition of accidental, regulated, and programmed forms of cell death in yeast based on a series of morphological and biochemical criteria. Specifically, we provide consensus guidelines on the differ-ential definition of terms including apoptosis, regulated necrosis, and autophagic cell death, as we refer to additional cell death rou-tines that are relevant for the biology of (at least some species of) yeast. As this area of investigation advances rapidly, changes and extensions to this set of recommendations will be implemented in the years to come. Nonetheless, we strongly encourage the au-thors, reviewers and editors of scientific articles to adopt these collective standards in order to establish an accurate framework for yeast cell death research and, ultimately, to accelerate the pro-gress of this vibrant field of research.
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Affiliation(s)
| | - Maria Anna Bauer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Andreas Zimmermann
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Andrés Aguilera
- Centro Andaluz de Biología, Molecular y Medicina Regenerativa-CABIMER, Universidad de Sevilla, Sevilla, Spain
| | | | - Kathryn Ayscough
- Department of Biomedical Science, University of Sheffield, Sheffield, United Kingdom
| | - Rena Balzan
- Department of Physiology and Biochemistry, University of Malta, Msida, Malta
| | - Shoshana Bar-Nun
- Department of Biochemistry and Molecular Biology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Antonio Barrientos
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, USA
- Department of Neurology, University of Miami Miller School of Medi-cine, Miami, USA
| | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Brown University, Providence, USA
| | - Marc Blondel
- Institut National de la Santé et de la Recherche Médicale UMR1078, Université de Bretagne Occidentale, Etablissement Français du Sang Bretagne, CHRU Brest, Hôpital Morvan, Laboratoire de Génétique Moléculaire, Brest, France
| | - Ralf J. Braun
- Institute of Cell Biology, University of Bayreuth, Bayreuth, Germany
| | | | - William C. Burhans
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Sabrina Büttner
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | | | - Michael Chang
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Katrina F. Cooper
- Dept. Molecular Biology, Graduate School of Biomedical Sciences, Rowan University, Stratford, USA
| | - Manuela Côrte-Real
- Center of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
| | - Vítor Costa
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Biologia Molecular, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | | | - Ian Dawes
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - Jörn Dengjel
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Martin B. Dickman
- Institute for Plant Genomics and Biotechnology, Texas A&M University, Texas, USA
| | - Tobias Eisenberg
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Birthe Fahrenkrog
- Laboratory Biology of the Nucleus, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, Charleroi, Belgium
| | - Nicolas Fasel
- Department of Biochemistry, University of Lausanne, Lausanne, Switzerland
| | - Kai-Uwe Fröhlich
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Ali Gargouri
- Laboratoire de Biotechnologie Moléculaire des Eucaryotes, Center de Biotechnologie de Sfax, Sfax, Tunisia
| | - Sergio Giannattasio
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy
| | - Paola Goffrini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Campbell W. Gourlay
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - Chris M. Grant
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Michael T. Greenwood
- Department of Chemistry and Chemical Engineering, Royal Military College, Kingston, Ontario, Canada
| | - Nicoletta Guaragnella
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy
| | | | - Jürgen Heinisch
- Department of Biology and Chemistry, University of Osnabrück, Osnabrück, Germany
| | - Eva Herker
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | | | - Sebastian Hofer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | | | - Helmut Jungwirth
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Katharina Kainz
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Dimitrios P. Kontoyiannis
- Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Paula Ludovico
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Minho, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Stéphen Manon
- Institut de Biochimie et de Génétique Cellulaires, UMR5095, CNRS & Université de Bordeaux, Bordeaux, France
| | - Enzo Martegani
- Department of Biotechnolgy and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Cristina Mazzoni
- Instituto Pasteur-Fondazione Cenci Bolognetti - Department of Biology and Biotechnology "C. Darwin", La Sapienza University of Rome, Rome, Italy
| | - Lynn A. Megeney
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
- Department of Medicine, Division of Cardiology, University of Ottawa, Ottawa, Canada
| | - Chris Meisinger
- Institute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK2800 Lyngby, Denmark
| | - Thomas Nyström
- Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Heinz D. Osiewacz
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | - Tiago F. Outeiro
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
- Max Planck Institute for Experimental Medicine, Göttingen, Germany
- Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, United Kingdom
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Hay-Oak Park
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA
| | - Tobias Pendl
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Dina Petranovic
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, Gothenburg, Sweden
| | - Stephane Picot
- Malaria Research Unit, SMITh, ICBMS, UMR 5246 CNRS-INSA-CPE-University Lyon, Lyon, France
- Institut of Parasitology and Medical Mycology, Hospices Civils de Lyon, Lyon, France
| | - Peter Polčic
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak Republic
| | - Ted Powers
- Department of Molecular and Cellular Biology, College of Biological Sciences, UC Davis, Davis, California, USA
| | - Mark Ramsdale
- Biosciences, University of Exeter, Exeter, United Kingdom
| | - Mark Rinnerthaler
- Department of Cell Biology and Physiology, Division of Genetics, University of Salzburg, Salzburg, Austria
| | - Patrick Rockenfeller
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | | | - Raffael Schaffrath
- Institute of Biology, Division of Microbiology, University of Kassel, Kassel, Germany
| | - Maria Segovia
- Department of Ecology, Faculty of Sciences, University of Malaga, Malaga, Spain
| | - Fedor F. Severin
- A.N. Belozersky Institute of physico-chemical biology, Moscow State University, Moscow, Russia
| | - Amir Sharon
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stephan J. Sigrist
- Institute for Biology/Genetics, Freie Universität Berlin, Berlin, Germany
| | - Cornelia Sommer-Ruck
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
| | - Maria João Sousa
- Center of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
| | - Johan M. Thevelein
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Leuven, Belgium
- Center for Microbiology, VIB, Leuven-Heverlee, Belgium
| | - Karin Thevissen
- Centre of Microbial and Plant Genetics, KU Leuven, Leuven, Belgium
| | | | - Michel B. Toledano
- Institute for Integrative Biology of the Cell (I2BC), SBIGEM, CEA-Saclay, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Mick Tuite
- Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - F.-Nora Vögtle
- Institute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | | | - Joris Winderickx
- Department of Biology, Functional Biology, KU Leuven, Leuven-Heverlee, Belgium
| | | | - Stefan Wölfl
- Institute of Pharmacy and Molecu-lar Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Zhaojie J. Zhang
- Department of Zoology and Physiology, University of Wyoming, Laramie, USA
| | - Richard Y. Zhao
- Department of Pathology, University of Maryland School of Medicine, Baltimore, USA
| | - Bing Zhou
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
- Université Paris Descartes/Paris V, Paris, France
| | - Guido Kroemer
- Université Paris Descartes/Paris V, Paris, France
- Equipe 11 Labellisée Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Cell Biology and Metabolomics Platforms, Gustave Roussy Comprehensive Cancer Center, Villejuif, France
- INSERM, U1138, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, Paris, France
- Institute, Department of Women’s and Children’s Health, Karolinska University Hospital, Stockholm, Sweden
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
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Simões-Silva L, Correia I, Barbosa J, Santos-Araujo C, Sousa MJ, Pestana M, Soares-Silva I, Sampaio-Maia B. Asymptomatic Effluent Protozoa Colonization in Peritoneal Dialysis Patients. Perit Dial Int 2017; 36:566-9. [PMID: 27659930 DOI: 10.3747/pdi.2015.00226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 11/15/2022] Open
Abstract
Currently, chronic kidney disease (CKD) is a global health problem. Considering the impaired immunity of CKD patients, the relevance of infection in peritoneal dialysis (PD), and the increased prevalence of parasites in CKD patients, protozoa colonization was evaluated in PD effluent from CKD patients undergoing PD. Overnight PD effluent was obtained from 49 asymptomatic stable PD patients. Protozoa analysis was performed microscopically by searching cysts and trophozoites in direct wet mount of PD effluent and after staining smears. Protozoa were found in PD effluent of 10.2% of evaluated PD patients, namely Blastocystis hominis, in 2 patients, and Entamoeba sp., Giardia sp., and Endolimax nana in the other 3 patients, respectively. None of these patients presented clinical signs or symptoms of peritonitis at the time of protozoa screening. Our results demonstrate that PD effluent may be susceptible to asymptomatic protozoa colonization. The clinical impact of this finding should be further investigated.
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Affiliation(s)
- Liliana Simões-Silva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal Serviço de Microbiologia, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Inês Correia
- Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
| | - Joana Barbosa
- Serviço de Microbiologia, Faculdade de Medicina, Universidade do Porto, Porto, Portugal CINTESIS, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Carla Santos-Araujo
- Departamento de Nefrologia, Centro Hospitalar de São João, EPE, Porto, Portugal Departamento de Fisiologia e Cirurgia Cardiotorácica, Unidade de I&D Cardiovascular, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Maria João Sousa
- Departamento de Nefrologia, Centro Hospitalar de São João, EPE, Porto, Portugal
| | - Manuel Pestana
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal Departamento de Nefrologia, Centro Hospitalar de São João, EPE, Porto, Portugal Departamento de Doenças Renais, Urológicas e Infecciosas, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Isabel Soares-Silva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Benedita Sampaio-Maia
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal Faculdade de Medicina Dentária, Universidade do Porto, Porto, Portugal
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Abstract
Summary Background. Antiretroviral therapy (ART) may be responsible for hypersensitivity reactions varying in severity, clinical manifestations and frequency. Case report. We report the case of a 47-year-old woman with HIV infection who developed a delayed mucocutaneous reaction after treatment with ART. Hypersensitivty reaction (HR) to emtricitabine and tenofovir was considered probable based on positive patch tests (PT) and hypersensitivity reaction to nevirapine was confirmed by drug provocation test. Discussion. The diagnosis of HR to ART remains a diagnostic challenge, partly due to unknown mechanism and the absence of validated diagnostic tools. Patch testing may represent a useful method for confirming hypersensitivity. Further investigation in this area is required, so that successful management strategies can be offered, preventing loss of potent and viable antiretroviral agents.
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Affiliation(s)
- M J Sousa
- Immunoallergology, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - S Cadinha
- Immunoallergology, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - M Mota
- Infectious Diseases, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - T Teixeira
- Infectious Diseases, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - D Malheiro
- Immunoallergology, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - J P Moreira da Silva
- Immunoallergology, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
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Silveira I, Sousa MJ, Rodrigues P, Brochado B, B Santos R, Trêpa M, Luz A, Silveira J, Albuquerque A, Carvalho H, Torres S. Developments in pre-hospital patient transport in ST-elevation myocardial infarction. Rev Port Cardiol 2017; 36:847-855. [PMID: 29126894 DOI: 10.1016/j.repc.2017.02.013] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 02/08/2017] [Accepted: 02/13/2017] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION ST-elevation myocardial infarction (STEMI) is a medical emergency that benefits from rapid access to specialized care. The objective of this study was to describe developments in patient transport via the pre-hospital emergency medical system (EMS) and its impact on clinical outcomes. METHODS We retrospectively studied STEMI patients who underwent primary percutaneous coronary intervention between January 2008 and July 2015. Patients were divided according to type of admission. Total ischemic time (TIT), door-to-balloon time (DBT) and in-hospital and one-year clinical outcomes were assessed for each group. RESULTS A total of 764 patients were included, of whom 33.5% were transported by the EMS and 45.8% by their own means, 13.7% were transferred from another institution and 6.9% were transported by non-EMS ambulance. There was a trend for more frequent recourse to the EMS over the eight-year period. There was a higher percentage of patients with prior myocardial infarction and Killip class III/IV in the EMS group compared to the non-EMS group. Significant differences were seen between groups in reperfusion times, EMS patients having the shortest TIT and DBT (195 vs. 286 min, p<0.001 and 61 vs. 90 min, p<0.001, respectively), but no significant difference in event rates was observed. Patients presenting to the hospital early had higher rates of effective reperfusion and lower in-hospital mortality (6.9% vs. 33.9%, p<0.001). CONCLUSIONS Recourse to the EMS significantly reduced ischemic times. Although this improvement was not directly associated with significant differences in event rates, it was associated with higher rates of effective reperfusion that were reflected in lower in-hospital mortality.
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Affiliation(s)
- Inês Silveira
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal.
| | - Maria João Sousa
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | | | - Bruno Brochado
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | - Raquel B Santos
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | - Maria Trêpa
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | - André Luz
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | - João Silveira
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
| | | | | | - Severo Torres
- Serviço de Cardiologia, Centro Hospitalar do Porto, Porto, Portugal
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Silveira I, Sousa MJ, Rodrigues P, Brochado B, Santos RB, Trêpa M, Luz A, Silveira J, Albuquerque A, Carvalho H, Torres S. Developments in pre-hospital patient transport in ST-elevation myocardial infarction. Revista Portuguesa de Cardiologia (English Edition) 2017. [DOI: 10.1016/j.repce.2017.02.015] [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: 10/18/2022] Open
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50
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Luz A, Silveira I, Brochado B, Rodrigues P, João Sousa M, Santos R, Trêpa M, Santos M, Silveira J, Torres S, Leite-Moreira AF, Carvalho H. Manual thrombectomy efficiency in relationship to the area at risk in patients with myocardial infarction with TIMI 0-1 coronary flow: Insights from an all comers registry. Catheter Cardiovasc Interv 2017; 90:531-539. [PMID: 28191743 DOI: 10.1002/ccd.26959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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] [Received: 05/26/2016] [Revised: 11/22/2016] [Accepted: 12/25/2016] [Indexed: 11/07/2022]
Abstract
OBJECTIVES To review the effectiveness of manual thrombectomy (MT) in a series of patients with ST-elevation myocardial infarction (STEMI) exclusively presenting with TIMI 0-1 flow undergoing percutaneous coronary intervention (PCI), in accordance to the angiographically estimated area at risk (AAR). Second, to assess major in-hospital clinical events, emphasizing neurological outcomes. BACKGROUND The routine utilization of MT in STEMI is not recommended. However, in recent trials, a significant proportion of patients had neither large thrombus burden nor a totally occluded coronary segment, neutralizing the expected benefits of MT. In addition, the efficiency of MT to remove thrombus has rarely been addressed. Finally, MT diminished distal embolization, which has been related to mortality. RESULTS In 850 consecutive STEMI-patients, MT was utilized in 525 (62%) and it was considered efficient (TIMI 2-3 flow after MT) in 445 (85%). We found a significant interaction between the AAR and the effectiveness of MT to reduce infarct size (P-interaction = 0.014). In patients having AAR ≥ 28% (n = 184), efficient MT conferred lesser infarct size compared to inefficient MT (Ln-transformed peak CK): 7.87 ± 0.86 versus 8.36 ± 0.41 IU/L, P = 0.005, with no impact for AAR <28%. Clinical outcomes including stroke between MT and PCI-only groups were not different. CONCLUSION In comparison with the group where MT was inefficient, efficient MT may modestly reduce final infarct size without a significant clinical benefit. In comparison with PCI-only, no difference was found regarding stroke. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- André Luz
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Inês Silveira
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Bruno Brochado
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | | | - Maria João Sousa
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Raquel Santos
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Maria Trêpa
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Mário Santos
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal.,Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Portugal
| | - João Silveira
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal.,Institute of Biomedical Sciences of "Abel Salazar", University of Porto, Portugal
| | - Severo Torres
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal.,Institute of Biomedical Sciences of "Abel Salazar", University of Porto, Portugal
| | - Adelino F Leite-Moreira
- Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Portugal
| | - Henrique Carvalho
- Cardiology Department, Centro Hospitalar do Porto, Porto, Portugal.,Institute of Biomedical Sciences of "Abel Salazar", University of Porto, Portugal
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