1
|
Félix C, Meneses R, Gonçalves MFM, Duarte AS, Jorrín-Novo JV, van de Peer Y, Deforce D, Van Nieuwerburgh F, Alves A, Esteves AC. How temperature modulates the expression of pathogenesis-related molecules of the cross-kingdom pathogen Lasiodiplodia hormozganensis. Sci Total Environ 2024; 927:171917. [PMID: 38580127 DOI: 10.1016/j.scitotenv.2024.171917] [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: 01/16/2024] [Revised: 03/17/2024] [Accepted: 03/21/2024] [Indexed: 04/07/2024]
Abstract
Lasiodiplodia hormozganensis, initially recognized as a fungal plant pathogen, is recognized now acknowledged as a potential threat to humans. However, our understanding of the pathogenesis mechanisms of Lasiodiplodia species remains limited, and the impact of temperature on its pathogenicity is unclear. This study aims to elucidate the effects of temperature on the biology of L. hormozganensis, focusing on the expression of pathogenesis-related molecules and its ability to function as a cross-kingdom pathogen. We conducted experiments at two different temperatures, 25 and 37 °C, analyzing the proteome and transcriptome of L. hormozganensis. Using strain CBS339.90, initially identified as L. theobromae but confirmed through ITS and tef1-α sequence analysis to be L. hormozganensis, we aimed to understand the fungus's protein expression under varying temperature conditions. Results from the functional analysis of the secretome at 25 °C showed a noteworthy presence of proteins related to carbohydrate metabolism, catabolism, plant cell wall degradation, and pathogenesis. However, when grown at 37 °C, the fungus exhibited an increased production of stress response and pathogenesis-related proteins. Our findings identified various pathways crucial for pathogenesis in both plants and humans, suggesting that L. hormozganensis possesses the genetic foundation to infect both hosts. Specific pathogenesis-related proteins, including the phytotoxin snodprot1, aspartic protease aspergillopepsin, and virulence protein SSD1, were also identified. Concluding, we propose a possible mechanism of how L. hormozganensis adapts to different temperatures. The shift in temperature results in the expression of genes that favor human related pathogenesis molecules.
Collapse
Affiliation(s)
- Carina Félix
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Present address: MARE - Marine and Environmental Sciences Centre, ESTM, Polytechnic Institute of Leiria, Portugal
| | - Rodrigo Meneses
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Department of Plant Biotechnology and Bioinformatics, Ghent University, VIB-UGent Center for Plant Systems Biology, B-9052, Belgium
| | - Micael F M Gonçalves
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana S Duarte
- Universidade Católica Portuguesa, Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Estrada da Circunvalação, 3504-505, Viseu, Portugal
| | - Jesus V Jorrín-Novo
- Agroforestry and Plant Biochemistry, Proteomics and Systems Biology, Department of Biochemistry and Molecular Biology, Universidad de Córdoba, Córdoba, Spain
| | - Yves van de Peer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, VIB-UGent Center for Plant Systems Biology, B-9052, Belgium
| | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Campus Heymans, Ottergemsesteenweg 460, B-9000 Ghent, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Campus Heymans, Ottergemsesteenweg 460, B-9000 Ghent, Belgium
| | - Artur Alves
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana C Esteves
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| |
Collapse
|
2
|
Lacerda PSS, Bartolomeu M, Gomes ATPC, Duarte AS, Almeida A, Faustino MAF, Neves MGPMS, Barata JFB. Can Corrole Dimers Be Good Photosensitizers to Kill Bacteria? Microorganisms 2022; 10:microorganisms10061167. [PMID: 35744685 PMCID: PMC9230841 DOI: 10.3390/microorganisms10061167] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 01/27/2023] Open
Abstract
Corroles possess key photophysical and photochemical properties to be exploited as therapeutic agents in antimicrobial photodynamic therapy (aPDT). Herein, we present for the first time the antimicrobial efficiency of three corrole dimers and of the corresponding precursor against the Gram(+) bacterium Staphylococcus aureus. Additionally, to explore future clinical applications, the cytotoxicity of the most promising derivatives towards Vero cells was evaluated. The aPDT assays performed under white light irradiation (50 mW/cm2; light dose 450 J/cm2) and at a corrole concentration of 15 µM showed that some dimers were able to reduce 99.9999% of S. aureus strain (decrease of 5 log10 CFU/mL) and their photodynamic efficiency was dependent on position, type of linkage, and aggregation behavior. Under the same light conditions, the corrole precursor 1 demonstrated notable photodynamic efficiency, achieving total photoinactivation (>8.0 log10 CFU/mL reduction) after the same period of irradiation (light dose 450 J/cm2). No cytotoxicity was observed when Vero cells were exposed to corrole 1 and dimer 3 for 24 h according to ISO guidelines (ISO 10993-5) for in vitro cytotoxicity of medical devices. The results show that corrole dimers, dependent on their structures, can be considered good photosensitizers to kill Staphylococcus aureus.
Collapse
Affiliation(s)
- Paula S. S. Lacerda
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Maria Bartolomeu
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T. P. C. Gomes
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), 3504-505 Viseu, Portugal; (A.T.P.C.G.); (A.S.D.)
| | - Ana S. Duarte
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), 3504-505 Viseu, Portugal; (A.T.P.C.G.); (A.S.D.)
| | - Adelaide Almeida
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria A. F. Faustino
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Maria G. P. M. S. Neves
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Joana F. B. Barata
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Correspondence:
| |
Collapse
|
3
|
Correia BL, Gomes ATPC, Noites R, Ferreira JMF, Duarte AS. New and Efficient Bioactive Glass Compositions for Controlling Endodontic Pathogens. Nanomaterials 2022; 12:nano12091577. [PMID: 35564288 PMCID: PMC9105659 DOI: 10.3390/nano12091577] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/21/2022] [Accepted: 04/29/2022] [Indexed: 01/27/2023]
Abstract
Endodontic treatment aims to conserve teeth through removing infected tissue, disinfecting, and filling/sealing the root canal. One of the most important treatment steps is the removal of microorganisms to avoid reinfection and consequent tooth loss. Due to increased resistance to intracanal medications, new alternative procedures are needed. Thus, an intracanal medication is suggested using three bioactive glass (BG) compositions (BG1, BG2, and BG3) produced by the sol–gel method, with different molar contents of bactericidal oxides. The BGs were morphologically and physically characterized. Their ability to inhibit the growth of two oral pathogens responsible for the failure of endodontic treatments (E. faecalis and C. albicans) was also studied. The results suggest that BG2 and BG3 can inhibit the growth of E. faecalis after 48 h of incubation, and all BG samples have a significant effect on C. albicans survival.
Collapse
Affiliation(s)
- Bruna L. Correia
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, Campus Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (B.L.C.); (J.M.F.F.)
| | - Ana T. P. C. Gomes
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
| | - Rita Noites
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
| | - José M. F. Ferreira
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, Campus Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (B.L.C.); (J.M.F.F.)
| | - Ana S. Duarte
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
- Correspondence: ; Tel.: +351-232-419-500
| |
Collapse
|
4
|
Tavares RDS, Tacão M, Figueiredo AS, Duarte AS, Esposito F, Lincopan N, Manaia CM, Henriques I. Genotypic and phenotypic traits of bla CTX-M-carrying Escherichia coli strains from an UV-C-treated wastewater effluent. Water Res 2020; 184:116079. [PMID: 32717492 DOI: 10.1016/j.watres.2020.116079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 04/21/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Wastewater treatment plants (WWTPs) are relevant sources of antibiotic resistance into aquatic environments. Disinfection of WWTPs' effluents (e.g. by UV-C irradiation) may attenuate this problem, though some clinically relevant bacteria have been shown to survive disinfection. In this study we characterized 25 CTX-M-producing Escherichia coli strains isolated from a WWTP's UV-C-irradiated effluent, aiming to identify putative human health hazards associated with such effluents. Molecular typing indicated that the strains belong to the phylogroups A, B2 and C and clustered into 9 multilocus sequence types (STs), namely B2:ST131 (n = 7), A:ST58 (n = 1), A:ST155 (n = 4), C:ST410 (n = 2), A:ST453 (n = 2), A:ST617 (n = 2), A:ST744 (n = 1), A:ST1284 (n = 3) and a putative novel ST (n = 3). PCR-screening identified 9 of the 20 antibiotic resistance genes investigated [i.e. sul1, sul2, sul3, tet(A), tet(B), blaOXA-1-like, aacA4, aacA4-cr and qnrS1]. The more prevalent were sul1, sul2 (n = 15 isolates) and tet(A) (n = 14 isolates). Plasmid restriction analysis indicated diverse plasmid content among strains (14 distinct profiles) and mating assays yielded cefotaxime-resistant transconjugants for 8 strains. Two of the transconjugants displayed a multi-drug resistance (MDR) phenotype. All strains were classified as cytotoxic to Vero cells (9 significantly more cytotoxic than the positive control) and 10 of 21 strains were invasive towards this cell line (including all B2:ST131 strains). The 10 strains tested against G. mellonella larvae exhibited a virulent behaviour. Twenty-four and 7 of the 25 strains produced siderophores and haemolysins, respectively. Approximately 66% of the strains formed biofilms. Genome analysis of 6 selected strains identified several virulence genes encoding toxins, siderophores, and colonizing, adhesion and invasion factors. Freshwater microcosms assays showed that after 28 days of incubation 3 out of 6 strains were still detected by cultivation and 4 strains by qPCR. Resistance phenotypes of these strains remained unaltered. Overall, we confirmed WWTP's UV-C-treated outflow as a source of MDR and/or virulent E. coli strains, some probably capable of persisting in freshwater, and that carry conjugative antibiotic resistance plasmids. Hence, disinfected wastewater may still represent a risk for human health. More detailed evaluation of strains isolated from wastewater effluents is urgent, to design treatments that can mitigate the release of such bacteria.
Collapse
Affiliation(s)
- Rafael D S Tavares
- Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal; Department of Biology, University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal
| | - Marta Tacão
- Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal; Department of Biology, University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
| | - Ana S Figueiredo
- Department of Biology, University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal
| | - Ana S Duarte
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar Em Saúde (CIIS), Estrada da Circunvalação, 3504-505, Viseu, Portugal
| | - Fernanda Esposito
- Department of Clinical Analysis, Faculty of Pharmacy, University of São Paulo, São Paulo, Brazil
| | - Nilton Lincopan
- Department of Clinical Analysis, Faculty of Pharmacy, University of São Paulo, São Paulo, Brazil; Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Célia M Manaia
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Rua de Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Isabel Henriques
- Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal; University of Coimbra, Department of Life Sciences, Faculty of Sciences and Technology, Calçada Martins de Freitas, 3000-456, Coimbra, Portugal
| |
Collapse
|
5
|
Félix C, Salvatore MM, DellaGreca M, Ferreira V, Duarte AS, Salvatore F, Naviglio D, Gallo M, Alves A, Esteves AC, Andolfi A. Secondary metabolites produced by grapevine strains of Lasiodiplodia theobromae grown at two different temperatures. Mycologia 2019; 111:466-476. [PMID: 31025901 DOI: 10.1080/00275514.2019.1600342] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Lasiodiplodia theobromae is a fungal plant pathogen that has been associated with Botryosphaeria dieback of grapevine. Despite several studies on L. theobromae, until now the production of secondary metabolites by strains isolated from grapevines has not been reported. The ability of two strains of L. theobromae isolated from grapevine to produce lipophilic metabolites was studied. Although many typical compounds of low molecular weight were identified from the crude extracts of both strains (e.g., lasiolactols, substituted 2-dihydrofuranones, melleins, jasmonic acid, 3-indolcarboxylic acid, botryodiplodins), (2R/2S,3S,4S)-3-epi-botryodiplodin was isolated for the first time as a natural compound. Furthermore, a comparative study of metabolite production was conducted at 25 and 37 C to understand temperature effects on metabolite profiles. Some metabolites were produced only by one strain (e.g., (3S,4S)-4-acetyl-3-methyl-2-dihydrofuranone produced by LA-SOL3) and others only at a specific temperature (e.g., jasmonic acid at 25 C, botryodiplodins at 37 C). Phytotoxicity and cytotoxicity of pure compounds were evaluated to clarify the influence of lipophilic metabolites on the biological activities of culture filtrates of both strains. The most toxic compound for Vero and 3T3 cells was (2R/2S,3S,4S)-3-epi-botryodiplodin.
Collapse
Affiliation(s)
- Carina Félix
- a Department of Biology , Centro de Estudos do Ambiente e do Mar, University of Aveiro, Campus Universitário de Santiago , Aveiro , 3810-193 , Portugal
| | - Maria M Salvatore
- b Department of Chemical Sciences , University of Naples " Federico II ," 80126 Naples , Italy
| | - Marina DellaGreca
- b Department of Chemical Sciences , University of Naples " Federico II ," 80126 Naples , Italy
| | - Vanessa Ferreira
- a Department of Biology , Centro de Estudos do Ambiente e do Mar, University of Aveiro, Campus Universitário de Santiago , Aveiro , 3810-193 , Portugal
| | - Ana S Duarte
- a Department of Biology , Centro de Estudos do Ambiente e do Mar, University of Aveiro, Campus Universitário de Santiago , Aveiro , 3810-193 , Portugal
| | - Francesco Salvatore
- b Department of Chemical Sciences , University of Naples " Federico II ," 80126 Naples , Italy
| | - Daniele Naviglio
- b Department of Chemical Sciences , University of Naples " Federico II ," 80126 Naples , Italy
| | - Monica Gallo
- c Department of Molecular Medicine and Medical Biotechnology , University of Naples " Federico II ," 80131 Naples , Italy
| | - Artur Alves
- a Department of Biology , Centro de Estudos do Ambiente e do Mar, University of Aveiro, Campus Universitário de Santiago , Aveiro , 3810-193 , Portugal
| | - Ana C Esteves
- a Department of Biology , Centro de Estudos do Ambiente e do Mar, University of Aveiro, Campus Universitário de Santiago , Aveiro , 3810-193 , Portugal
| | - Anna Andolfi
- b Department of Chemical Sciences , University of Naples " Federico II ," 80126 Naples , Italy
| |
Collapse
|
6
|
Félix C, Salvatore MM, DellaGreca M, Meneses R, Duarte AS, Salvatore F, Naviglio D, Gallo M, Jorrín-Novo JV, Alves A, Andolfi A, Esteves AC. Production of toxic metabolites by two strains of Lasiodiplodia theobromae, isolated from a coconut tree and a human patient. Mycologia 2018; 110:642-653. [PMID: 30062925 DOI: 10.1080/00275514.2018.1478597] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 01/08/2023]
Abstract
Lasiodiplodia theobromae is a phytopathogenic fungus that causes diseases not only in a broad number of plant hosts but also occasionally in humans. The capacity of L. theobromae to produce bioactive metabolites at 25 C (environmental mean temperature) and at 37 C (body mean temperature) was investigated. Two strains, CAA019 and CBS339.90, isolated respectively from a coconut tree and a human patient were characterized. The phytotoxicity and cytotoxicity (on mammalian cells) of the secretomes of both strains of L. theobromae were investigated. Also, phytotoxicity and cytotoxicity of pure compounds were evaluated. The phytotoxicity of the secretome of strain CAA019 was higher than the phytotoxicity of the secretome of strain CBS339.90 at 25 C. However, the phytotoxicity for both strains decreased when they were grown at 37 C. Only the secretome of strain CBS339.90 grown at 37 C induced up to 90% Vero and 3T3 cell mortality. This supports the presence of different metabolites in the secretome of strains CAA019 and CBS339.90. Metabolites typical of L. theobromae were isolated and identified from organic extracts of the secretome of both strains (e.g., 3-indolecarboxylic acid, jasmonic acid, lasiodiplodin, four substituted 2-dihydrofuranones, two melleins, and cyclo-(Trp-Ala)). Also, metabolites such as scytalone, not previously reported for this species, were isolated and identified. Metabolite production is affected by strain and temperature. In fact, some metabolites are strain specific (e.g., lasiodiplodin) and some metabolites are temperature specific (e.g., jasmonic acid). Although more strains should be characterized, it may be anticipated that temperature tuning of secondary-metabolite production emerges as a putative contributing factor in the modulation of L. theobromae pathogenicity towards plants, and also towards mammalian cells.
Collapse
Affiliation(s)
- Carina Félix
- a Department of Biology, CESAM , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Maria M Salvatore
- b Department of Chemical Sciences , University of Naples "Federico II" , 80126 Naples , Italy
| | - Marina DellaGreca
- b Department of Chemical Sciences , University of Naples "Federico II" , 80126 Naples , Italy
| | - Rodrigo Meneses
- a Department of Biology, CESAM , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Ana S Duarte
- a Department of Biology, CESAM , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Francesco Salvatore
- b Department of Chemical Sciences , University of Naples "Federico II" , 80126 Naples , Italy
| | - Daniele Naviglio
- b Department of Chemical Sciences , University of Naples "Federico II" , 80126 Naples , Italy
| | - Monica Gallo
- c Department of Molecular Medicine and Medical Biotechnology , University of Naples "Federico II" , 80131 Naples , Italy
| | - Jesús V Jorrín-Novo
- d Agricultural and Plant Biochemistry and Proteomics Research Group, Department of Biochemistry and Molecular Biology , University of Cordoba , Cordoba , Spain
| | - Artur Alves
- a Department of Biology, CESAM , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Anna Andolfi
- b Department of Chemical Sciences , University of Naples "Federico II" , 80126 Naples , Italy
| | - Ana C Esteves
- a Department of Biology, CESAM , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| |
Collapse
|
7
|
Félix C, Libório S, Nunes M, Félix R, Duarte AS, Alves A, Esteves AC. Lasiodiplodia theobromae as a Producer of Biotechnologically Relevant Enzymes. Int J Mol Sci 2018; 19:ijms19020029. [PMID: 29360737 PMCID: PMC5855540 DOI: 10.3390/ijms19020029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 12/19/2017] [Revised: 01/11/2018] [Accepted: 01/17/2018] [Indexed: 12/20/2022] Open
Abstract
Phytopathogenic fungi are known to produce several types of enzymes usually involved in plant cell wall degradation and pathogenesis. The increasing of global temperature may induce fungi, such as Lasiodiplodia theobromae (L. theobromae), to alter its behavior. Nonetheless, there is only limited information regarding the effect of temperature on L. theobromae production of enzymes. The need for new, thermostable enzymes, that are biotechnologically relevant, led us to investigate the effect of temperature on the production of several extracellular enzymatic activities by different L. theobromae strains. Fungi were grown at 25 °C, 30 °C and 37 °C and the enzymatic activities were detected by plate assays, quantified by spectrophotometric methods and characterized by zymography. The thermostability (25–80 °C) of the enzymes produced was also tested. Strains CAA019, CBS339.90, LA-SOL3, LA-SV1 and LA-MA-1 produced amylases, gelatinases, caseinases, cellulases, lipases, laccases, xylanases, pectinases and pectin liases. Temperature modulated the expression of the enzymes, and this effect was more visible when fungi were grown at 37 °C than at lower temperatures. Contrary to proteolytic and endoglucanolytic activities, whose highest activities were detected when fungi were grown at 30 °C, lipolytic activity was not detected at this growth temperature. Profiles of proteases and endoglucanases of fungi grown at different temperatures were characterized by zymography. Enzymes were shown to be more thermostable when fungi were grown at 30 °C. Proteases were active up to 50 °C and endoglucanases up to 70 °C. Lipases were the least stable, with activities detected up to 45 °C. The enzymatic profiles detected for L. theobromae strains tested showed to be temperature and strain-dependent, making this species a good target for biotechnological applications.
Collapse
Affiliation(s)
- Carina Félix
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Sofia Libório
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Mariana Nunes
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Rafael Félix
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Ana S Duarte
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Artur Alves
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Ana C Esteves
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| |
Collapse
|
8
|
Félix C, Duarte AS, Vitorino R, Guerreiro ACL, Domingues P, Correia ACM, Alves A, Esteves AC. Temperature Modulates the Secretome of the Phytopathogenic Fungus Lasiodiplodia theobromae. Front Plant Sci 2016; 7:1096. [PMID: 27536303 PMCID: PMC4971015 DOI: 10.3389/fpls.2016.01096] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/11/2016] [Indexed: 05/18/2023]
|
9
|
Duarte AS, Cavaleiro E, Pereira C, Merino S, Esteves AC, Duarte EP, Tomás JM, Correia AC. Aeromonas piscicola AH-3 expresses an extracellular collagenase with cytotoxic properties. Lett Appl Microbiol 2014; 60:288-97. [PMID: 25443157 DOI: 10.1111/lam.12373] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 09/12/2014] [Revised: 11/10/2014] [Accepted: 11/26/2014] [Indexed: 01/01/2023]
Abstract
UNLABELLED The aim of this study was to investigate the presence and the phenotypic expression of a gene coding for a putative collagenase. This gene (AHA_0517) was identified in Aeromonas hydrophila ATCC 7966 genome and named colAh. We constructed and characterized an Aeromonas piscicola AH-3::colAh knockout mutant. Collagenolytic activity of the wild-type and mutant strains was determined, demonstrating that colAh encodes for a collagenase. ColAh-collagen interaction was assayed by Far-Western blot, and cytopathic effects were investigated in Vero cells. We demonstrated that ColAh is a gluzincin metallopeptidase (approx. 100 kDa), able to cleave and physically interact with collagen, that contributes for Aeromonas collagenolytic activity and cytotoxicity. ColAh possess the consensus HEXXH sequence and a glutamic acid as the third zinc binding positioned downstream the HEXXH motif, but has low sequence similarity and distinct domain architecture to the well-known clostridial collagenases. In addition, these results highlight the importance of exploring new microbial collagenases that may have significant relevance for the health and biotechnological industries. SIGNIFICANCE AND IMPACT OF THE STUDY Collagenases play a central role in processes where collagen digestion is needed, for example host invasion by pathogenic micro-organisms. We identified a new collagenase from Aeromonas using an integrated in silico/in vitro strategy. This enzyme is able to bind and cleave collagen, contributes for AH-3 cytotoxicity and shares low similarity with known bacterial collagenases. This is the first report of an enzyme belonging to the gluzincin subfamily of the M9 family of peptidases in Aeromonas. This study increases the current knowledge on collagenolytic enzymes bringing new perspectives for biotechnology/medical purposes.
Collapse
Affiliation(s)
- A S Duarte
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | | | | | | | | | | | | | | |
Collapse
|
10
|
da Cunha AF, Brugnerotto AF, Duarte AS, Lanaro C, Costa GGL, Saad STO, Costa FF. Global gene expression reveals a set of new genes involved in the modification of cells during erythroid differentiation. Cell Prolif 2010; 43:297-309. [PMID: 20546246 DOI: 10.1111/j.1365-2184.2010.00679.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES Erythroid differentiation is a dynamic process in which a pluripotent stem cell undergoes a series of developmental changes that commit it to a specific lineage. These alterations involve changes in gene expression profiles. In this study, gene expression profiles during differentiation of human erythroid cells of a normal blood donor were evaluated using SAGE. MATERIALS AND METHODS Global gene expression was evaluated in cells collected immediately before addition of erythropoietin (0 h) and 192 and 336 h after addition of this hormone. Real-time PCR was used to evaluate activation of differentially expressed genes. RESULTS The data indicate that global aspects of the transcriptome were similar during differentiation of the majority of the genes and that a relatively small set of genes is probably involved in modification of erythroid cells during differentiation. We have identified 93 differentially expressed genes during erythroid development, and expression of some of these was confirmed by qPCR. Various genes including EYA3, ERH, HES6, TIMELESS and TRIB3 were found to be homologous to those of Drosophila melanogaster and here are described for the first time during erythroid development. An important and unique carboxypeptidase inhibitor described in mammalians, LXN, was also identified. CONCLUSIONS The results of this study amplify previously published data and may contribute to comprehension of erythroid differentiation and identification of new target genes involved in some erythroid concerning diseases.
Collapse
Affiliation(s)
- A F da Cunha
- Departamento de Genética e Evolução, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil.
| | | | | | | | | | | | | |
Collapse
|
11
|
Oliveira RC, Teixeira BR, Mello FCA, Pereira AP, Duarte AS, Bonaldo MC, Bonvicino CR, D'Andrea PS, Lemos ERS. Genetic characterization of a Juquitiba-like viral lineage in Oligoryzomys nigripes in Rio de Janeiro, Brazil. Acta Trop 2009; 112:212-8. [PMID: 19660427 DOI: 10.1016/j.actatropica.2009.07.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 06/15/2009] [Accepted: 07/28/2009] [Indexed: 11/29/2022]
Abstract
Hantaviruses, family Bunyaviridae, are rodent-borne RNA viruses that have caused cases of hantavirus cardiopulmonary syndrome (HCPS) in various regions of the Americas. There are five hantaviral lineages associated with HCPS in Brazil: Juquitiba virus (JUQV), Araraquara virus (ARAV), Laguna Negra-like virus (LNV), Castelo dos Sonhos virus (CASV), and Anajatuba virus (ANAJV). Three additional hantaviruses have been described in rodents alone: Rio Mearim virus, Jaborá virus, and a hantavirus lineage related to Seoul virus. This study describes the genetic detection and characterization of a Juquitiba-like hantavirus in Oligoryzomys nigripes, or the black-footed pygmy rice rat, in the Serra dos Orgãos National Park, Rio de Janeiro State, where so far no cases of HCPS have been reported.
Collapse
Affiliation(s)
- R C Oliveira
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Duarte AS, Rosa N, Duarte EP, Pires E, Barros MT. Cardosins: A new and efficient plant enzymatic tool to dissociate neuronal cells for the establishment of cell cultures. Biotechnol Bioeng 2006; 97:991-6. [PMID: 17099909 DOI: 10.1002/bit.21259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In the present work, we examined the feasibility of using cardosins, plant aspartic-proteinases from Cynara cardunculus L., to isolate cells from rat embryonic brain. Using morphological and functional assays, we compared cell cultures obtained with cardosins with those prepared with a well-established trypsin protocol. Cardosins and trypsin dissociation produced cells with similar yield, viability, and GABA release in response to a depolarizing stimulus. However, cardosins-dissociated cells appeared to recover faster in culture, as assessed by the MTT-test and by the number and length of neurtites, suggesting that cardosins are less aggressive to neurons than trypsin. This feature might be helpful for research and medical purposes requiring fast manipulations of cells.
Collapse
Affiliation(s)
- A S Duarte
- CESAM and Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | | | | | | | | |
Collapse
|
13
|
Duarte AS, Pereira AO, Cabrita AMS, Moir AJG, Pires EMV, Barros MMT. The characterisation of the collagenolytic activity of cardosin a demonstrates its potential application for extracellular matrix degradative processes. Curr Drug Discov Technol 2006; 2:37-44. [PMID: 16472240 DOI: 10.2174/1570163053175448] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Type I collagen is the major fibrous protein of mammals being needed to strengthen and organise the extracellular matrix (ECM). Connective tissue components are modulated by matrix metalloproteinases, which are critical for disintegration and remodelling of ECM under physiological and pathological conditions. Cardosin A is an abundant aspartic proteinase (AP) from Cynara cardunculus L. that has been shown to be able to hydrolyse fibrillar collagen within the alpha-chains. The aim of this work is the characterisation of collagen degradation by cardosin A, since in the native state fibrillar collagen is resistant to most proteolytic enzymes. The pattern of type I collagen hydrolysis by cardosin A is defined and maintained for at least 24 hours of digestion, suggesting that cardosin A can hydrolyse collagen at a small number of specific peptide bonds. N-terminal sequencing of hydrolysis products identified one cleavage site as being Phe464-Gln465 in the alpha2 chain of collagen I. Two peptides were synthesised correspondent to collagen I specific sequences, in order to produce two polyclonal antibodies, that allowed the identification of three collagen fragments following cardosin A cleavage. Defining the mechanism of collagen cleavage by collagenases and other enzymes, like cardosin A, is important for the comprehension of physiological and pathological processes affecting the ECM. To our knowledge, this is the first study of in vitro collagenolytic activity of a plant AP. Therefore, in view of the cardosin A restricted specificity towards collagen this enzyme may be proposed for an eventual medical or technical procedures assisting ECM remodelling.
Collapse
Affiliation(s)
- Ana S Duarte
- Centro de Biologia Celular, Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | | | | | | | | | | |
Collapse
|
14
|
Sarmento AC, Oliveira CS, Duarte AS, Pires E, Barros MT. Evaluation of cardosin A as a probe for limited proteolysis in non-aqueous environments—complex substrates hydrolysis. Enzyme Microb Technol 2006. [DOI: 10.1016/j.enzmictec.2005.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Pereira AO, Cartucho DJ, Duarte AS, Gil MH, Cabrita AMS, Patrício JA, Barros MMT. Immobilisation of cardosin A in chitosan sponges as a novel implant for drug delivery. Curr Drug Discov Technol 2005; 2:231-8. [PMID: 16475919 DOI: 10.2174/157016305775202973] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Cardosin A is extracted from the pistils of the plant Cynara cardunculus L. and chitosan is a polysaccharide derived from chitin with valuable properties as a biomaterial. In this work we report our experiments on the synthesis of chitosan sponges and immobilisation of cardosin A, by entrapment. We observed that 10-15% of the incorporated cardosin A were released over 6 days of incubation. In addition, we could also note that this immobilisation procedure did not induce any specificity alterations on cardosin A. The specificity study of the enzyme, using beta-chain of oxidised insulin, showed that the immobilised and released enzymes have the same hydrolysis pattern as the free enzyme. The ability of this enzyme to hydrolyse type I collagen was maintained, after the immobilisation procedure. The biocompatibility in vivo of these sponges was evaluated by histological staining after implantation in rats submitted to abdominal surgery. Results of this study demonstrated that these chitosan sponges are very promising vehicles for the application of cardosin A, in abdominal cavity for prevention and reduction of the adhesions formation.
Collapse
Affiliation(s)
- Anabela O Pereira
- Centro de Biologia Celular, Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, and Laboratório de Investigação Experimental, Hospital Universidade de Coimbra, Portugal
| | | | | | | | | | | | | |
Collapse
|
16
|
Bassères DS, Duarte AS, Hassoun H, Costa FF, Saad ST. beta-Spectrin S(ta) Bárbara: a novel frameshift mutation in hereditary spherocytosis associated with detectable levels of mRNA and a germ cell line mosaicism. Br J Haematol 2001; 115:347-53. [PMID: 11703334 DOI: 10.1046/j.1365-2141.2001.03103.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Hereditary spherocytosis (HS) is a common inherited anaemia characterized by the presence of spherocytic red cells and by a heterogeneous nature in terms of its clinical presentation, molecular basis and inheritance. Defects in several membrane protein genes have been involved in the pathogenesis of HS, including defects in the beta-spectrin gene. We detected a novel frameshift mutation in the beta-spectrin gene, a C deletion at codon 638, in a patient presenting with HS and spectrin deficiency. The mutant protein was not detected in the membrane or in other cellular compartments, but detectable levels of mutant mRNA were found in the patient. Interestingly, this mutation was not present in the patient's parents, suggesting a genetic mosaicism, especially as the patient has an affected brother with the same molecular defect. We analysed DNA from different tissues of the parents and the mutation was absent from all tissues analysed. This mutation seems to be confined to the germ cell lineage of the patient's mother and must present a mosaic pattern in these cells as the patient also has unaffected siblings.
Collapse
Affiliation(s)
- D S Bassères
- Hemocentro, Depto. de Genética e Evolução Universidade Estadual de Campinas, Campinas, Brazil
| | | | | | | | | |
Collapse
|
17
|
Duarte AS, Pinho JL, Pardal MA, Neto JM, Vieira JP, Santos FS. Effect of residence times on River Mondego estuary eutrophication vulnerability. Water Sci Technol 2001; 44:329-336. [PMID: 11548002] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The south arm of the Mondego estuary, located in the central western Atlantic coast of Portugal, is almost silted up in the upstream area. So, the water circulation is mostly driven by tides and the tributary river Pranto discharges. Eutrophication has been taking place in this ecosystem during last twelve years, where macroalgae reach a luxuriant development covering a significant area of the intertidal muddy flat. A sampling program was carried out from June 1993 to June 1994. Available data on salinity profiles and on nutrients loading into the south arm were used in order to get a better understanding of the ongoing changes. River Pranto flow discharges, controlled by a sluice, were also monitored. Integral formulations are typically based on assumptions of steady state and well-mixed systems and thus cannot take into account the space and time variability of estuarine residence times, due to river discharge flow, tidal coefficients, discharge(s) location and time of release during the tidal cycle. This work presents the hydrodynamics modelling (2D-H) of this system in order to estimate the residence times variability and to assess their effect on the estuarine eutrophication vulnerability, contributing to better environmental management strategies selection.
Collapse
Affiliation(s)
- A S Duarte
- Department of Civil Engineering, University of Minho, Braga, Portugal
| | | | | | | | | | | |
Collapse
|
18
|
Laudanna AA, Prado IB, Duarte AS, Yamaguchi N, Barros MT. Diarrhea and malabsorption in primary humoral immunodeficiency. Rev Hosp Clin Fac Med Sao Paulo 1996; 51:157-61. [PMID: 9216091] [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] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Patients with Humoral immunodeficiency syndromes frequently present recurrent infections, mainly of the digestive and respiratory tracts. This study carried out a clinical and laboratorial evaluation in 15 humoral immunodeficiency patients presenting chronic gastrointestinal symptoms. Out results emphasize the relevance of immunodeficiency syndromes in the differential diagnosis of chronic diarrhea.
Collapse
Affiliation(s)
- A A Laudanna
- Department of Gastroenterology, Medical School, University of São Paulo
| | | | | | | | | |
Collapse
|