Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells
Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of t...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cirelli, Cecília [verfasserIn] Mesquita, Elaine Isabela Soares [verfasserIn] Chagas, Isabela Aurora Rodrigues [verfasserIn] Furst, Cinthia [verfasserIn] Possamai, Cynara Oliveira [verfasserIn] Abrahão, Jonatas Santos [verfasserIn] dos Santos Silva, Ludmila Karen [verfasserIn] Grossi, Marina Felipe [verfasserIn] Tagliati, Carlos Alberto [verfasserIn] Costa, Adriana Oliveira [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Parasitology research - Berlin : Springer, 1928, 119(2019), 2 vom: 17. Dez., Seite 659-666 |
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| Übergeordnetes Werk: |
volume:119 ; year:2019 ; number:2 ; day:17 ; month:12 ; pages:659-666 |
| Links: |
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| DOI / URN: |
10.1007/s00436-019-06562-w |
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| Katalog-ID: |
SPR005958725 |
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| 245 | 1 | 0 | |a Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
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| 520 | |a Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. | ||
| 650 | 4 | |a Genotype |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a MDCK interaction |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Pathogenicity |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Protease |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Mesquita, Elaine Isabela Soares |e verfasserin |4 aut | |
| 700 | 1 | |a Chagas, Isabela Aurora Rodrigues |e verfasserin |4 aut | |
| 700 | 1 | |a Furst, Cinthia |e verfasserin |4 aut | |
| 700 | 1 | |a Possamai, Cynara Oliveira |e verfasserin |4 aut | |
| 700 | 1 | |a Abrahão, Jonatas Santos |e verfasserin |4 aut | |
| 700 | 1 | |a dos Santos Silva, Ludmila Karen |e verfasserin |4 aut | |
| 700 | 1 | |a Grossi, Marina Felipe |e verfasserin |4 aut | |
| 700 | 1 | |a Tagliati, Carlos Alberto |e verfasserin |4 aut | |
| 700 | 1 | |a Costa, Adriana Oliveira |e verfasserin |4 aut | |
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10.1007/s00436-019-06562-w doi (DE-627)SPR005958725 (SPR)s00436-019-06562-w-e DE-627 ger DE-627 rakwb eng 590 610 ASE 44.44 bkl 42.00 bkl Cirelli, Cecília verfasserin aut Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 Mesquita, Elaine Isabela Soares verfasserin aut Chagas, Isabela Aurora Rodrigues verfasserin aut Furst, Cinthia verfasserin aut Possamai, Cynara Oliveira verfasserin aut Abrahão, Jonatas Santos verfasserin aut dos Santos Silva, Ludmila Karen verfasserin aut Grossi, Marina Felipe verfasserin aut Tagliati, Carlos Alberto verfasserin aut Costa, Adriana Oliveira verfasserin aut Enthalten in Parasitology research Berlin : Springer, 1928 119(2019), 2 vom: 17. Dez., Seite 659-666 (DE-627)254638627 (DE-600)1462976-8 1432-1955 nnns volume:119 year:2019 number:2 day:17 month:12 pages:659-666 https://dx.doi.org/10.1007/s00436-019-06562-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.44 ASE 42.00 ASE AR 119 2019 2 17 12 659-666 |
| spelling |
10.1007/s00436-019-06562-w doi (DE-627)SPR005958725 (SPR)s00436-019-06562-w-e DE-627 ger DE-627 rakwb eng 590 610 ASE 44.44 bkl 42.00 bkl Cirelli, Cecília verfasserin aut Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 Mesquita, Elaine Isabela Soares verfasserin aut Chagas, Isabela Aurora Rodrigues verfasserin aut Furst, Cinthia verfasserin aut Possamai, Cynara Oliveira verfasserin aut Abrahão, Jonatas Santos verfasserin aut dos Santos Silva, Ludmila Karen verfasserin aut Grossi, Marina Felipe verfasserin aut Tagliati, Carlos Alberto verfasserin aut Costa, Adriana Oliveira verfasserin aut Enthalten in Parasitology research Berlin : Springer, 1928 119(2019), 2 vom: 17. Dez., Seite 659-666 (DE-627)254638627 (DE-600)1462976-8 1432-1955 nnns volume:119 year:2019 number:2 day:17 month:12 pages:659-666 https://dx.doi.org/10.1007/s00436-019-06562-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.44 ASE 42.00 ASE AR 119 2019 2 17 12 659-666 |
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10.1007/s00436-019-06562-w doi (DE-627)SPR005958725 (SPR)s00436-019-06562-w-e DE-627 ger DE-627 rakwb eng 590 610 ASE 44.44 bkl 42.00 bkl Cirelli, Cecília verfasserin aut Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 Mesquita, Elaine Isabela Soares verfasserin aut Chagas, Isabela Aurora Rodrigues verfasserin aut Furst, Cinthia verfasserin aut Possamai, Cynara Oliveira verfasserin aut Abrahão, Jonatas Santos verfasserin aut dos Santos Silva, Ludmila Karen verfasserin aut Grossi, Marina Felipe verfasserin aut Tagliati, Carlos Alberto verfasserin aut Costa, Adriana Oliveira verfasserin aut Enthalten in Parasitology research Berlin : Springer, 1928 119(2019), 2 vom: 17. Dez., Seite 659-666 (DE-627)254638627 (DE-600)1462976-8 1432-1955 nnns volume:119 year:2019 number:2 day:17 month:12 pages:659-666 https://dx.doi.org/10.1007/s00436-019-06562-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.44 ASE 42.00 ASE AR 119 2019 2 17 12 659-666 |
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10.1007/s00436-019-06562-w doi (DE-627)SPR005958725 (SPR)s00436-019-06562-w-e DE-627 ger DE-627 rakwb eng 590 610 ASE 44.44 bkl 42.00 bkl Cirelli, Cecília verfasserin aut Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 Mesquita, Elaine Isabela Soares verfasserin aut Chagas, Isabela Aurora Rodrigues verfasserin aut Furst, Cinthia verfasserin aut Possamai, Cynara Oliveira verfasserin aut Abrahão, Jonatas Santos verfasserin aut dos Santos Silva, Ludmila Karen verfasserin aut Grossi, Marina Felipe verfasserin aut Tagliati, Carlos Alberto verfasserin aut Costa, Adriana Oliveira verfasserin aut Enthalten in Parasitology research Berlin : Springer, 1928 119(2019), 2 vom: 17. Dez., Seite 659-666 (DE-627)254638627 (DE-600)1462976-8 1432-1955 nnns volume:119 year:2019 number:2 day:17 month:12 pages:659-666 https://dx.doi.org/10.1007/s00436-019-06562-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.44 ASE 42.00 ASE AR 119 2019 2 17 12 659-666 |
| allfieldsSound |
10.1007/s00436-019-06562-w doi (DE-627)SPR005958725 (SPR)s00436-019-06562-w-e DE-627 ger DE-627 rakwb eng 590 610 ASE 44.44 bkl 42.00 bkl Cirelli, Cecília verfasserin aut Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 Mesquita, Elaine Isabela Soares verfasserin aut Chagas, Isabela Aurora Rodrigues verfasserin aut Furst, Cinthia verfasserin aut Possamai, Cynara Oliveira verfasserin aut Abrahão, Jonatas Santos verfasserin aut dos Santos Silva, Ludmila Karen verfasserin aut Grossi, Marina Felipe verfasserin aut Tagliati, Carlos Alberto verfasserin aut Costa, Adriana Oliveira verfasserin aut Enthalten in Parasitology research Berlin : Springer, 1928 119(2019), 2 vom: 17. Dez., Seite 659-666 (DE-627)254638627 (DE-600)1462976-8 1432-1955 nnns volume:119 year:2019 number:2 day:17 month:12 pages:659-666 https://dx.doi.org/10.1007/s00436-019-06562-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.44 ASE 42.00 ASE AR 119 2019 2 17 12 659-666 |
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Enthalten in Parasitology research 119(2019), 2 vom: 17. Dez., Seite 659-666 volume:119 year:2019 number:2 day:17 month:12 pages:659-666 |
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Enthalten in Parasitology research 119(2019), 2 vom: 17. Dez., Seite 659-666 volume:119 year:2019 number:2 day:17 month:12 pages:659-666 |
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Genotype MDCK interaction Pathogenicity Protease |
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Cirelli, Cecília @@aut@@ Mesquita, Elaine Isabela Soares @@aut@@ Chagas, Isabela Aurora Rodrigues @@aut@@ Furst, Cinthia @@aut@@ Possamai, Cynara Oliveira @@aut@@ Abrahão, Jonatas Santos @@aut@@ dos Santos Silva, Ludmila Karen @@aut@@ Grossi, Marina Felipe @@aut@@ Tagliati, Carlos Alberto @@aut@@ Costa, Adriana Oliveira @@aut@@ |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR005958725</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519191323.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201002s2019 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00436-019-06562-w</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR005958725</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s00436-019-06562-w-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">590</subfield><subfield code="a">610</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">44.44</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">42.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Cirelli, Cecília</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. 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|
| author |
Cirelli, Cecília |
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Cirelli, Cecília ddc 590 bkl 44.44 bkl 42.00 misc Genotype misc MDCK interaction misc Pathogenicity misc Protease Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
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590 610 ASE 44.44 bkl 42.00 bkl Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells Genotype (dpeaa)DE-He213 MDCK interaction (dpeaa)DE-He213 Pathogenicity (dpeaa)DE-He213 Protease (dpeaa)DE-He213 |
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ddc 590 bkl 44.44 bkl 42.00 misc Genotype misc MDCK interaction misc Pathogenicity misc Protease |
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ddc 590 bkl 44.44 bkl 42.00 misc Genotype misc MDCK interaction misc Pathogenicity misc Protease |
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Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
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| title_full |
Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
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Cirelli, Cecília |
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Parasitology research |
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Cirelli, Cecília Mesquita, Elaine Isabela Soares Chagas, Isabela Aurora Rodrigues Furst, Cinthia Possamai, Cynara Oliveira Abrahão, Jonatas Santos dos Santos Silva, Ludmila Karen Grossi, Marina Felipe Tagliati, Carlos Alberto Costa, Adriana Oliveira |
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extracellular protease profile of acanthamoeba after prolonged axenic culture and after interaction with mdck cells |
| title_auth |
Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
| abstract |
Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. |
| abstractGer |
Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. |
| abstract_unstemmed |
Abstract Free-living amoebae of the genus Acanthamoeba are causative agents of Acanthamoeba keratitis and amoebic encephalitis in humans, both of which are serious infections. The ability to produce proteases is one of the factors involved in the pathogenesis of Acanthamoeba infections. The aim of this study was to evaluate the secreted proteases of six Acanthamoeba strains from distinct genotypes (T1, T2, T4 and T11) maintained in prolonged axenic culture and following three successive passages in Madin-Darby Canine Kidney (MDCK) cells. Conditioned medium was obtained from cultures before and after interaction with the MDCK monolayers, resolved in SDS-PAGE containing gelatine, then subjected to quantitative azocasein assays. Zymography profiles varied between the strains, with the predominant proteases found to be serine-type proteases from 49 to 128 kDa. A T1 genotype strain isolated from dust showed quantitatively higher protease secretion compared to the other strains. No changes were detected in the zymography profiles of MDCK-interacted cultures compared to long-term axenic cultures. Two strains presented lower proteolytic activity post-MDCK interaction, while the remaining strains presented similar values before and after MDCK passages. In conclusion, this study confirms the predominance of serine-type protease secretion by Acanthamoeba, with distinct profiles presented by the different strains and genotypes studied. Also, interaction of trophozoites with MDCK cells did not alter the zymography pattern. |
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Extracellular protease profile of Acanthamoeba after prolonged axenic culture and after interaction with MDCK cells |
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Mesquita, Elaine Isabela Soares Chagas, Isabela Aurora Rodrigues Furst, Cinthia Possamai, Cynara Oliveira Abrahão, Jonatas Santos dos Santos Silva, Ludmila Karen Grossi, Marina Felipe Tagliati, Carlos Alberto Costa, Adriana Oliveira |
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Mesquita, Elaine Isabela Soares Chagas, Isabela Aurora Rodrigues Furst, Cinthia Possamai, Cynara Oliveira Abrahão, Jonatas Santos dos Santos Silva, Ludmila Karen Grossi, Marina Felipe Tagliati, Carlos Alberto Costa, Adriana Oliveira |
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| score |
7.401348 |