Cross Immunoreactivity
Mostrando 1-12 de 74 artigos, teses e dissertações.
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1. IgE antibodies from schistosomiasis patients to recognize epitopes in potato apyrase
Abstract INTRODUCTION: High percentages of structural identity and cross-immunoreactivity have been reported between potato apyrase and Schistosoma mansoni ATP diphosphohydrolase (SmATPDases) isoforms, showing the existence of particular epitopes shared between these proteins. METHODS: Potato apyrase was employed using ELISA, western blot, and mouse immu
Rev. Soc. Bras. Med. Trop.. Publicado em: 28/03/2019
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2. Identificação de alvos antigênicos na ATP difosfohidrolase solúvel de Schistosoma mansoni e possível aplicação funcional de peptídeos sintéticos
The antigenicity of both soluble S. mansoni ATP diphosphohydrolase and membraneassociated isoforms has been recently described. Cross-immunoreactivity between potato apyrase and IgG antibody from S. mansoni-infected mice or schistosomiasis patients strongly suggested that the epitopes shared between the vegetable and parasite proteins are antigenic. By bioin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2010
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3. Reatividade de "tripanosomatídeos inferiores": B. culicis, C. deanei, C. fasciculata, C. luciliae, H. samuelpessoai, L. seymouri, P. serpens e W. inconstans com anticorpos de hospedeiros humanos e cães infectados com Leishmania sp. e T. cruzi. / Reactivity of "lower trypanosomatids" : B. culicis, C. deanei, C. fasciculata, C. luciliae, H. samuelpessoai, L. seymouri, P. serpens and W. inconstans with anti-Leishmania sp. and anti-T. cruzi antibodies from human and canine hosts.
"Lower trypanosomatids", that infect plant and insect, present biochemical and molecular similarities to Leishmania sp. and Trypanosoma cruzi. Antigenic similarities between those parasites are known for a long time, but only few comparative investigations about immune humoral cross-reaction were described. In the current work we analyze the cross-immunoreac
Publicado em: 2010
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4. Cross-immunoreactivity between anti-potato apyrase antibodies and mammalian ATP diphosphohydrolases: potential use of the vegetal protein in experimental schistosomiasis
We have previously showed that Schistosoma mansoni ATP-diphosphohydrolase and Solanum tuberosum potato apyrase share epitopes and the vegetable protein has immunostimulatory properties. Here, it was verified the in situ cross-immunoreactivity between mice NTPDases and anti-potato apyrase antibodies produced in rabbits, using confocal microscopy. Liver sample
Memórias do Instituto Oswaldo Cruz. Publicado em: 2006-10
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5. An immunohistochemical, clinical and electroneuromyographic correlative study of the neural markers in the neuritic form of leprosy
The nerve biopsies of 11 patients with pure neuritic leprosy were submitted to routine diagnostic procedures and immunoperoxidase staining with antibodies against axonal (neurofilament, nerve growth factor receptor (NGFr), and protein gene product (PGP) 9.5) and Schwann cell (myelin basic protein, S-100 protein, and NGFr) markers. Two pairs of non-adjacent h
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-08
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6. Preliminary study of the presence of antibodies against excretory-secretory antigens from protoscoleces of Echinococcus granulosus in dogs with intestinal echinococcosis
The aim of the present study was to analyze the antibody response against excretory-secretory antigens (ES-Ag) from Echinococcus granulosus protoscoleces, using sera from dogs infected with E. granulosus and other helminths. ES-Ag were obtained from the first 50 h maintenance of protoscoleces in vitro. Immunochemical characterization was performed by immunob
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-05
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7. ENSAIOS PRELIMINARES PARA PRODUÇÃO DE ANTICORPOS MONOCLONAIS SOROTIPO-ESPECÍFICOS CONTRA OS VÍRUS DENGUE TIPOS 1 E 2 UTILIZANDO PEPTÍDEOS SINTÉTICOS DESENHADOS A PARTIR DA ANÁLISE ESTRUTURAL DA PROTEÍNA E / Preliminary assays to specific serotype monoclonal antibodies production against the dengue virus types 1 and 2 using synthetic peptides designed after structural analysis of the E protein
The dengue virus E protein is the major target of immunity humoral response. E protein presents differences in primary structure (four structural isoforms) that reflects the possibility of four differents serotypes against this protein, in an immune response. Monoclonal antibodies against these specific regions of each isoform could be used to develop a rapi
Publicado em: 2005
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8. Identificação da enzima oxido nitrico sintase em vegetais
The enzyme nitric oxide synthase (NOS) is responsible for the synthesis of nitric oxide (NO), from the oxidation of L-arginine to L-citrulline. This enzyme has been found largely distributed in nature. In the animal kingdom, the NOS isoforms constitutively expressed are frequently Ca2+ -dependent and involved in physiological processes while Ca2+ -independen
Publicado em: 1999
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9. Immune Response against the Exp-1 Protein of Plasmodium falciparum Results in Antibodies That Cross-React with Human T-Cell Lymphotropic Virus Type 1 Proteins
To examine the role of the Plasmodium falciparum Exp-1 blood-stage protein in producing antibodies that cross-react with human T-cell lymphotropic virus type I (HTLV-I) proteins, we studied sera from Indonesian volunteers who seroconverted to malaria after transmigrating to an area where malaria is hyperendemic. Samples from Philippine volunteers, that were
American Society for Microbiology.
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10. Elevation of Plasma Neurotensinlike Immunoreactivity after a Meal: CHARACTERIZATION OF THE ELEVATED COMPONENTS
The detection of an elevation in neurotensinlike immunoreactivity in peripheral plasma for several hours after a meal has been confirmed and shown to be primarily due to the presence of aminoterminal fragments of neurotensin (NT) rather than to NT itself. We have developed a procedure to separate and characterize these N-terminal cross-reacting substances, a
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11. Electrophysiology and morphology of vasoactive-intestinal-peptide-immunoreactive neurones of the guinea-pig ileum.
Simultaneous intracellular staining and electrophysiological recording techniques have been applied to neurones of guinea-pig myenteric plexus-longitudinal muscle preparations. With micro-electrodes filled with a solution of the fluorescent dye Lucifer Yellow, neurones were first characterized morphologically and electrophysiologically, and subsequently subj
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12. Measurement of Fibrinopeptide A in Human Blood
Since thrombin cleaves fibrinopeptides A (FPA) and B from the NH2-terminal end of the fibrinogen molecule, measurement of fibrinopeptide levels in plasma may provide a direct index of thrombin action. Recently a radioimmunoassay for FPA has been developed, and in the present paper, we describe the application of this assay to the measurement of FPA levels in