Structural and immunological characterization of sulphatides: Relevance of sulphate moieties in Trypanosoma cruzi glycoconjugates

Sulphoglycosphingolipids, present on the surface of diverse cells, participate in the regulation of various cellular events. However, little is known about the structure and the role of sulphoglycosphingolipids in trypanosomatids. Herein, sulphated dihexosylceramide structures - composed mainly of s...

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Autor principal: Acosta, D.M
Otros Autores: Soprano, L.L, Ferrero, M.R, Esteva, M.I, Riarte, A., Couto, A.S, Duschak, V.G
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2012
Acceso en línea:Registro en Scopus
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024 7 |2 scopus  |a 2-s2.0-84867596646 
024 7 |2 cas  |a cysteine proteinase, 37353-41-6; sphingosine, 123-78-4; stearic acid, 57-11-4, 646-29-7; sulfate, 14808-79-8; Antiprotozoal Agents; Cysteine Endopeptidases, 3.4.22.-; Glycoconjugates; Immunoglobulin G; Sulfoglycosphingolipids; cruzipain, 3.4.22.- 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
030 |a PAIMD 
100 1 |a Acosta, D.M. 
245 1 0 |a Structural and immunological characterization of sulphatides: Relevance of sulphate moieties in Trypanosoma cruzi glycoconjugates 
260 |c 2012 
270 1 0 |m Duschak, V.G.; Área de Bioquímica de Proteínas y Glicobiologia de Parasitos, Departamento de Investigacion, Instituto Nacional de Parasitología Dr. Mario Fatala Chaben, ANLIS-Malbrán, Ministerio de Salud de la Nación, Av. Paseo Colón 568, Buenos Aires 1063, Argentina; email: vduschak@conicet.gov.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a Sulphoglycosphingolipids, present on the surface of diverse cells, participate in the regulation of various cellular events. However, little is known about the structure and the role of sulphoglycosphingolipids in trypanosomatids. Herein, sulphated dihexosylceramide structures - composed mainly of sphingosine as the long chain base acylated with stearic acid - have been determined for the first time in Trypanosoma cruzi epimastigotes by UV-MALDI-TOF-MS analysis. Interestingly, inhibition ELISA assays using cruzipain as antigen and polyclonal rabbit antibodies specific for cruzipain, the major cysteine proteinase of T. cruzi, or for its C-terminal domain, have demonstrated (i) that sulphate epitopes are shared between cruzipain and sulphatides of T. cruzi, (ii) that cross-reactivity maps to the C-terminal domain and (iii) the existence of other antigenic determinants in the glycolipidic structures. These features provide evidence that sulphate groups are antigenic in sulphate-containing parasite glycoconjugates. Furthermore, IgG2 antibody levels inversely correlate with disease severity in chronic Chagas disease patients, suggesting that IgG2 antibodies specific for sulphated epitopes might be associated with protective immunity and might be considered as potential surrogates of the course of chronic Chagas disease. © 2012 Blackwell Publishing Ltd.  |l eng 
593 |a Instituto Nacional de Parasitología Dr Mario Fatala Chaben, ANLIS-Malbrán, Ministerio de Salud de la Nación, Buenos Aires, Argentina 
593 |a CIHIDECAR(CONICET), Depto de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina 
690 1 0 |a CRUZIPAIN ANTIBODIES 
690 1 0 |a SULPHATE MOIETIES 
690 1 0 |a SULPHATIDES 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a UV-MALDI-TOF-MS 
690 1 0 |a CERAMIDE 
690 1 0 |a CRUZIPAIN 
690 1 0 |a CYSTEINE PROTEINASE 
690 1 0 |a EPITOPE 
690 1 0 |a GLYCOCONJUGATE 
690 1 0 |a GLYCOLIPID 
690 1 0 |a IMMUNOGLOBULIN G2 
690 1 0 |a SPHINGOSINE 
690 1 0 |a STEARIC ACID 
690 1 0 |a SULFATE 
690 1 0 |a SULFATIDE 
690 1 0 |a SULPHATED DIHEXOSYLCERAMIDE 
690 1 0 |a UNCLASSIFIED DRUG 
690 1 0 |a ANIMAL EXPERIMENT 
690 1 0 |a ANIMAL MODEL 
690 1 0 |a ARTICLE 
690 1 0 |a CARBOXY TERMINAL SEQUENCE 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CHEMICAL STRUCTURE 
690 1 0 |a CLINICAL ARTICLE 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a CROSS REACTION 
690 1 0 |a EPIMASTIGOTE 
690 1 0 |a HUMAN 
690 1 0 |a MATRIX ASSISTED LASER DESORPTION IONIZATION TIME OF FLIGHT MASS SPECTROMETRY 
690 1 0 |a NONHUMAN 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a RABBIT 
690 1 0 |a STRUCTURE ANALYSIS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ULTRAVIOLET RADIATION 
690 1 0 |a ADULT 
690 1 0 |a ANIMALS 
690 1 0 |a ANTIPROTOZOAL AGENTS 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CROSS REACTIONS 
690 1 0 |a CYSTEINE ENDOPEPTIDASES 
690 1 0 |a ENZYME-LINKED IMMUNOSORBENT ASSAY 
690 1 0 |a FEMALE 
690 1 0 |a GLYCOCONJUGATES 
690 1 0 |a HUMANS 
690 1 0 |a IMMUNOGLOBULIN G 
690 1 0 |a MALE 
690 1 0 |a MIDDLE AGED 
690 1 0 |a RABBITS 
690 1 0 |a SPECTROMETRY, MASS, MATRIX-ASSISTED LASER DESORPTION-IONIZATION 
690 1 0 |a SULFOGLYCOSPHINGOLIPIDS 
690 1 0 |a TRYPANOSOMA CRUZI 
700 1 |a Soprano, L.L. 
700 1 |a Ferrero, M.R. 
700 1 |a Esteva, M.I. 
700 1 |a Riarte, A. 
700 1 |a Couto, A.S. 
700 1 |a Duschak, V.G. 
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