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A New Assessment of Thioester-Containing Proteins Diversity of the Freshwater Snail Biomphalaria glabrata ArchiMer
Duval, David; Pichon, Rémi; Lassalle, Damien; Laffitte, Maud; Gourbal, Benjamain; Galinier, Richard.
Thioester-containing proteins (TEPs) superfamily is known to play important innate immune functions in a wide range of animal phyla. TEPs are involved in recognition, and in the direct or mediated killing of several invading organisms or pathogens. While several TEPs have been identified in many invertebrates, only one TEP (named BgTEP) has been previously characterized in the freshwater snail, Biomphalaria glabrata. As the presence of a single member of that family is particularly intriguing, transcriptomic data and the recently published genome were used to explore the presence of other BgTEP related genes in B. glabrata. Ten other TEP members have been reported and classified into different subfamilies: Three complement-like factors (BgC3-1 to BgC3-3),...
Tipo: Text Palavras-chave: Biomphalaria glabrata; Thioester-containing protein; Alternative splicing; Immunity; Schistosome.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00601/71268/69657.pdf
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Advances in gastropod immunity from the study of the interaction between the snail Biomphalaria glabrata and its parasites: A review of research progress over the last decade ArchiMer
Coustau, C.; Gourbal, B.; Duval, D.; Yoshino, T. P.; Adema, C. M.; Mitta, Guillaume.
This review summarizes the research progress made over the past decade in the field of gastropod immunity resulting from investigations of the interaction between the snail Biomphalaria glabrata and its trematode parasites. A combination of integrated approaches, including cellular, genetic and comparative molecular and proteomic approaches have revealed novel molecular components involved in mediating Biomphalaria immune responses that provide insights into the nature of host-parasite compatibility and the mechanisms involved in parasite recognition and killing. The current overview emphasizes that the interaction between B. glabrata and its trematode parasites involves a complex molecular crosstalk between numerous antigens, immune receptors, effectors...
Tipo: Text Palavras-chave: Biomphalaria glabrata; Schistosoma mansoni; Echinostoma caproni; Immunity; Compatibility.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00276/38718/38622.pdf
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Aspectos histológicos das gônadas hermafroditas de Biomphalaria glabrata e Bradybaena similaris (Mollusca, Gastropoda, Pulmonata) Pap. Avulsos de Zool. (São Paulo)
Silva,Rinaldo Florêncio da; Cubas,Jairo José Matozinho; Moraes,Josué de.
Biomphalaria glabrata (Say, 1818) é um gastrópode pulmonado de água doce que desperta grande interesse médico e veterinário. Bradybaena similaris (Férussac, 1821) é um gastrópode pulmonado terrestre considerado uma praga agrícola de plantações de hortaliças. Ambas as espécies são hospedeiras intermediárias de helmintos. Esses moluscos possuem uma gônada hermafrodita produtora de óvulos e espermatozóides de forma simultânea. Neste estudo foram avaliados aspectos histomorfológicos das gônadas hermafroditas de B. glabrata e B. similaris. A gônada de B. similaris encontra-se subdividida em lobos com glândulas em seu interior, o que não foi observado em B. glabrata. Além disso, em B. similaris as células germinativas estão acumuladas em determinados pontos e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histologia; Gônada hermafrodita; Biomphalaria glabrata; Bradybaena similaris.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009003300001
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Atividade moluscicida de princípios ativos de folhas de Lycopersicon esculentum (Solanales, Solanaceae) em Biomphalaria glabrata (Gastropoda, Planorbidae) Iheringia, Sér. Zool.
Leyton,Vilma; Henderson,Thomas O.; Mascara,Douglas; Kawano,Toshie.
Foram obtidos extratos aquosos e alcoólicos a partir de pó de folhas secas de tomateiro (Lycopersicon esculentum, Mill.) c.v. Cereja. Por extração metanólica e precipitação alcalina, foi obtido um produto que denominamos "glicoalcalóide esteroidal bruto" (GEb), no qual foi caracterizada a presença de tomatina. Em ensaios laboratoriais, os extratos aquosos, alcoólicos e o GEb apresentaram atividade moluscicida em Biomphalaria glabrata (Say, 1818). O "glicoalcalóide esteroidal bruto" apresentou alta atividade moluscicida (CL50 = 8,01 ppm e CL90 = 13,17 ppm), comparável à atividade da tomatina. Desovas de B. glabrata mostraram-se resistentes aos extratos testados. Os níveis de atividade moluscicida apresentados pelos diversos extratos e o GEb, apontam apenas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Moluscicida; Biomphalaria glabrata; Lycopersicon esculentum; Tomateiro.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000200012
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Avaliação do efeito agudo de inseticidas bacterianos sobre caramujos da espécie Biomphalaria glabrata. Repositório Alice
OLIVEIRA FILHO, E. C.; MUNIZ, D. H. F.; RAMOS, F. R.; MONNERAT, R. G..
2007
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biomphalaria glabrata; Caramujo; Mollusca; Inseticidas; Controle biológico; Biological control.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/188669
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Behavioral response of Biomphalaria glabrataexposed to a sublethal concentration of Euphorbia miliivar. hislopii latex Anais da ABC (AABC)
ALBERTO-SILVA,ANNA CARLA; CUNHA,RODOLFO A.; COSTA,VALDIR A. DA; SANTOS,EVERTON GUSTAVO N. DOS; VASCONCELLOS,MAURÍCIO C. DE; MELLO-SILVA,CLÉLIA CHRISTINA; SANTOS,CLÁUDIA P..
Abstract The Euphobia milii var. hislopii latex has been tested in the control of schistosomiasis but its action in the locomotor activity of Biomphalaria glabrata is unknown. The objective of this work was to study the locomotor and reproductive behaviors of B. glabrata exposed to E. milii var. hislopii latex. For this, 96 snails were individually exposed to the latex (LC50 - 0.53 mg / L) for 24 hours. The specimens were submitted to biomonitoring for image analysis to record the locomotor parameters at different times: before exposure (control), one day post exposure (group 1 d-p-e) and 30 days post exposure (group 30 d-p-e). The reproductive parameters were recorded weekly for 10 weeks. All locomotor activities of group 1 d-p-e decreased significantly....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavior; Biomonitoring; Biomphalaria glabrata; Control of schistosomiasis; Euphorbia milii var.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100716
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BgTEP: An Antiprotease Involved in Innate Immune Sensing in Biomphalaria glabrata ArchiMer
Portet, Anais; Galinier, Richard; Pinaud, Silvain; Portela, Julien; Nowacki, Fanny; Gourbal, Benjamin; Duval, David.
Insect thioester-containing protein (iTEP) is the most recently defined group among the thioester-containing protein (TEP) superfamily. TEPs are key components of the immune system, and iTEPs from flies and mosquitoes were shown to be major immune weapons. Initially characterized from insects, TEP genes homologous to iTEP were further described from several other invertebrates including arthropods, cniderians, and mollusks albeit with few functional characterizations. In the freshwater snail Biomphalaria glabrata, a vector of the schistosomiasis disease, the presence of a TEP protein (BgTEP) was previously described in a well-defined immune complex involving snail lectins (fibrinogen-related proteins) and schistosome parasite mucins (SmPoMuc). To...
Tipo: Text Palavras-chave: Thioester-containing protein; Complement-like protein; Biomphalaria glabrata; Interaction host/pathogens; Innate immunity.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00444/55548/71780.tif
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Effects of 17α-methyltestosterone on the reproduction of the freshwater snail Biomphalaria glabrata. Repositório Alice
RIVERO-WENDT, C. L. G.; BORGES, A. C.; OLIVEIRA FILHO, E. C. de; MIRANDA-VILELA, A. L.; FERREIRA, M. F. N.; GRISOLIA, C. K..
17-α-methyltestosterone (MT) is a synthetic hormone used in fish hatcheries to induce male monosex. Snails hold promise as possible test models to assess chemicals acting on the endocrine system. Biomphalaria glabrata is an aquatic gastropod mollusk (Pulmonata, Planorbidae) that can be easily maintained in aquaria, predisposing the species for use in ecotoxicological testing. This study evaluated the reproductive effects of MT on B. glabrata by examining histological changes and its reproductive performance. Ten snails per group were exposed for 4 weeks to different concentrations of MT (0.01, 0.1, and 1.0 mg/L). The total number of laid eggs, egg mass per group, size of type V oocytes, and production of spermatozoids were determined. Reproduction...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Hormônio sintético; Performance reprodutiva; Desreguladores endócrinos; Histopatologia; Methyltestosterone; Reproductive performance; Endocrine-disrupting chemicals; Biomphalaria glabrata; Histopathology; Synthetic hormones.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1002535
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Glabralysins, Potential New β-Pore-Forming Toxin Family Members from the Schistosomiasis Vector Snail Biomphalaria glabrata ArchiMer
Lassalle, Damien; Tetreau, Guillaume; Pinaud, Silvain; Galinier, Richard; Crickmore, Neil; Gourbal, Benjamain; Duval, David.
Biomphalaria glabrata is a freshwater Planorbidae snail. In its environment, this mollusk faces numerous microorganisms or pathogens, and has developed sophisticated innate immune mechanisms to survive. The mechanisms of recognition are quite well understood in Biomphalaria glabrata, but immune effectors have been seldom described. In this study, we analyzed a new family of potential immune effectors and characterized five new genes that were named Glabralysins. The five Glabralysin genes showed different genomic structures and the high degree of amino acid identity between the Glabralysins, and the presence of the conserved ETX/MTX2 domain, support the hypothesis that they are pore-forming toxins. In addition, tertiary structure prediction confirms that...
Tipo: Text Palavras-chave: Pore-forming toxin; Cry toxin; Invertebrate; Biomphalaria glabrata; Host; Pathogen; Vector snail; Innate immunity.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00601/71267/69655.pdf
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Specific Pathogen Recognition by Multiple Innate Immune Sensors in an Invertebrate ArchiMer
Tetreau, Guillaume; Pinaud, Silvain; Portet, Anais; Galinier, Richard; Gourbal, Benjamin; Duval, David.
Detection of pathogens by all living organisms is the primary step needed to implement a coherent and efficient immune response. This implies a mediation by different soluble and/or membrane-anchored proteins related to innate immune receptors called PRRs (pattern-recognition receptors) to trigger immune signaling pathways. In most invertebrates, their roles have been inferred by analogy to those already characterized in vertebrate homologs. Despite the induction of their gene expression upon challenge and the presence of structural domains associated with the detection of pathogen-associated molecular patterns in their sequence, their exact role in the induction of immune response and their binding capacity still remain to be demonstrated. To this...
Tipo: Text Palavras-chave: Invertebrate innate immunity; Interactome; Pathogen sensing; Biomphalaria glabrata; Pattern-recognition receptor; Proteomic profiling; Immune specificity; Hemocyte-free hemolymph.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00405/51633/71796.pdf
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