Variants with reduced virulence derived from Leishmania major after mutagen treatment.

abstract：:Immunohistochemistry and immunofluorescence with confocal microscopy were used to localize the host-protective antigens of Taenia saginata (TSA9 and TSA18) and Taenia solium (TSOL16, TSOL18 and TSOL45). In nonactivated oncospheres, TSA9 and TSOL45 antigens were found primarily in the cytoplasm of the penetration gland...

journal_title：Parasite immunology

authors： Jabbar A,Verástegui M,Lackenby JA,Walduck AK,Gauci CG,Gilman RH,Lightowlers MW

更新日期：2010-09-01 00:00:00

abstract：:The in vitro binding serum complement (C) components to Schistosoma mansoni worms was studied. By exposing frozen sections of adult male and female parasites to normal human serum, binding of both classical and alternative pathway C components was observed. By immunofluorescence (IFL) microscopy selective binding of C...

journal_title：Parasite immunology

authors： Linder E,Huldt G

更新日期：1983-03-01 00:00:00

abstract：:Plasma from chronic or advanced hepatosplenic schistosomiasis (mansoni) patients (PCS) suppressed mitogen-induced responses of normal human peripheral blood mononuclear cells. 1 x 10(5) Ficoll-Hypaque isolated lymphocytes were cultured in 100 microliter RPMI 1640 media with 100 microliter plasma preparation and stimul...

journal_title：Parasite immunology

authors： Kamal KA,Higashi GI

更新日期：1982-07-01 00:00:00

abstract：:Chagas' disease or American trypanosomiasis due to Trypanosoma cruzi has existed at least since the time of the Inca empire and contributes significantly to cardiovascular morbidity and mortality in several countries of this continent. Due to the fundamental role of human class II molecules polymorphic residues in the...

journal_title：Parasite immunology

authors： Fernandez-Mestre MT,Layrisse Z,Montagnani S,Acquatella H,Catalioti F,Matos M,Balbas O,Makhatadze N,Dominguez E,Herrera F,Madrigal A

更新日期：1998-04-01 00:00:00

abstract：:We have assessed the role of tumour necrosis factor-alpha (TNF) during cutaneous leishmaniasis and demonstrated that significant levels of TNF were released by spleen cells from infected mice after in vitro restimulation with Leishmania major promastigotes. Spleen cells from both genetically resistant and genetically ...

journal_title：Parasite immunology

authors： Moll H,Binöder K,Bogdan C,Solbach W,Röllinghoff M

更新日期：1990-09-01 00:00:00

abstract：:Helminth parasites induce a strong Th2 response, characterized by high levels of IgE and elevated signature cytokines such as IL-5. As many global deworming programmes are underway, there is concern that this might lead to emergence of Th1-mediated pathologies when the counterbalancing helminth-induced Th2 response is...

journal_title：Parasite immunology

authors： de Ruiter K,Tahapary DL,Wammes LJ,Wiria AE,Hamid F,van Lieshout L,Smit JWA,Houwing-Duistermaat JJ,Sartono E,Supali T,Yazdanbakhsh M

更新日期：2017-06-01 00:00:00

abstract：:Toxoplasma gondii is a worldwide protozoan parasite which causes severe disease in congenitally infected children and in immunocompromised patients. Besides the well-defined cytoplasmic and membrane antigens of tachyzoites, we felt that excreted/secreted antigens could play a major role in the immune response. We firs...

journal_title：Parasite immunology

authors： Darcy F,Deslee D,Santoro F,Charif H,Auriault C,Decoster A,Duquesne V,Capron A

更新日期：1988-09-01 00:00:00

abstract：:We investigated the immune effector mechanisms that underlie protection against F. hepatica in the gut wall of immune rats, using (immuno)histochemistry. In the lamina propria of immune Wistar rats, four weeks after oral infection, frequencies of IgE-positive cells, eosinophils and mucosal mast cells were significantl...

journal_title：Parasite immunology

authors： Van Milligen FJ,Cornelissen JB,Hendriks IM,Gaasenbeek CP,Bokhout BA

更新日期：1998-06-01 00:00:00

abstract：:We describe an ELISA for trophozoite-specific IgA in the intestinal secretions of mice infected with Giardia muris. Using this method, trophozoite-specific IgA was demonstrated in intestinal secretions of Giardia-infected immunocompetent BALB/c mice. Such antibody was undetectable in the intestinal secretions of Giard...

journal_title：Parasite immunology

authors： Heyworth MF,Kung JE,Caplin AB

更新日期：1988-11-01 00:00:00

abstract：:The zoonotic pathogen Toxoplasma gondii infects over 30% of the human population. The intracellular parasite can persist lifelong in the CNS within neurons modifying their function and structure, thus leading to specific behavioural changes of the host. In recent years, several in vitro studies and murine models have ...

journal_title：Parasite immunology

authors： Parlog A,Schlüter D,Dunay IR

更新日期：2015-03-01 00:00:00

abstract：:Chronic Chagas cardiomyopathy (CCC) is responsible for the disease's greater morbidity and poor prognosis. Although understanding the pathophysiology of CCC and the fundamentals of its clinical management derives from research related to other cardiomyopathies, there are peculiarities that distinguish CCC from the oth...

journal_title：Parasite immunology

authors： Chaves AT,Menezes CAS,Costa HS,Nunes MCP,Rocha MOC

更新日期：2019-10-01 00:00:00

abstract：:A 17 kD protein of Necator americanus was isolated by SDS-PAGE and used to raise monospecific antisera in rabbits. ELISA and Western blotting against a range of parasite extracts demonstrated the species specificity of this protein. It is expressed at all stages of the life-cycle, appears to be accumulated through the...

journal_title：Parasite immunology

authors： Pritchard DI,McKean PG,Rogan MT,Schad GA

更新日期：1990-05-01 00:00:00

abstract：:Sheep scab is caused by the noninvasive mite, Psoroptes ovis, which initiates a profound pro-inflammatory skin response leading to lesion development. To investigate these early events between the skin and the parasite, primary ovine epidermal keratinocyte cultures were generated and challenged with mite derived antig...

journal_title：Parasite immunology

authors： Watkins CA,Mackellar A,Frew D,Mackie C,George A,Hopkins J,Burgess ST,McNeilly TN,Huntley JF

更新日期：2009-06-01 00:00:00

abstract：:In order to gain insights into the immune response in onchocerciasis during early infection, laboratory-reared calves were infected with 1000 Onchocerca lienalis infective larvae and examined serologically over a period of 508 days. Levels of serum antibodies measured by ELISA against adult worm extract revealed a mul...

journal_title：Parasite immunology

authors： Kuo YM,Bianco AE

更新日期：1995-08-01 00:00:00

abstract：AIMS:Merozoite surface protein 8 (MSP-8) of Plasmodium parasites plays an important role in erythrocyte invasion and is a potential malaria vaccine candidate. METHODS AND RESULTS:In this study, virus-like particles (VLPs) expressing MSP-8 of Plasmodium berghei on the surface of influenza virus matrix protein 1 (M1) co...

journal_title：Parasite immunology

authors： Lee SH,Chu KB,Kang HJ,Basak S,Kim MJ,Park H,Jin H,Moon EK,Quan FS

更新日期：2020-11-01 00:00:00

abstract：:The opportunistic protozoan parasite Toxoplasma gondii is well known as a strong inducer of cell-mediated immunity, largely as a result of proinflammatory cytokine induction during in vivo infection. Yet, during intracellular infection the parasite suppresses signal transduction pathways leading to these proinflammato...

journal_title：Parasite immunology

authors： Leng J,Butcher BA,Denkers EY

更新日期：2009-12-01 00:00:00

abstract：:The carrier effect, using TNP-labelled schistosomula was used to measure the helper T-cell activity against the schistosomula surface in CBA mice exposed to 30 cercariae of Schistosoma mansoni. After infection the helper T-cell activity reached a peak in 8--10 days, but by 6 weeks it had declined to background levels....

journal_title：Parasite immunology

authors： Ramalho-Pinto FJ,Smithers SR

更新日期：1981-10-01 00:00:00

abstract：:The prostaglandins (PG) are known to regulate immune cell function(s) and participate in the progression of both acute and chronic inflammatory reactions. Using an in vitro model of Schistosoma mansoni egg-induced hypersensitivity granulomas, we have delineated the role of immune complexes (IC) in the induction and re...

journal_title：Parasite immunology

authors： Goes AM,Rezende SA,Gazzinelli G,Doughty BL

更新日期：1994-01-01 00:00:00

abstract：:CD4(+) T cells play a critical role in determining the disease outcome in murine cutaneous leishmaniasis, and selective usage of T-cell receptor (TCR) is implied in promoting Leishmania major infection. However, little information is available on TCR usage in Leishmania-specific, IFN-γ-producing CD4(+) T cells. In thi...

journal_title：Parasite immunology

authors： Xin L,Wanderley JL,Wang Y,Vargas-Inchaustegui DA,Soong L

更新日期：2011-03-01 00:00:00

abstract：:E6020 is a synthetic agonist of Toll-like receptor-4 (TLR4). The purpose of this study was to evaluate the effect of different doses of E6020-SE on Trypanosoma cruzi-specific immune responses and its ability to confer protection against acute lethal infection in mice. Forty female BALB/c were infected with 500 trypoma...

journal_title：Parasite immunology

authors： Villanueva-Lizama LE,Cruz-Chan JV,Versteeg L,Teh-Poot CF,Hoffman K,Kendricks A,Keegan B,Pollet J,Gusovsky F,Hotez PJ,Bottazzi ME,Jones KM

更新日期：2020-10-01 00:00:00

abstract：:The pathogenesis of the tissue lesions observed in American trypanosomiasis (Chagas' disease) seems to depend on a variety of mechanisms. The present study was dedicated to the investigation of the evolution of muscle lesions and its relationship with immunological and parasitological parameters. Mice were infected i....

journal_title：Parasite immunology

authors： Silva JC,Pirmez C,Morgado MG,Galvão-Castro B

更新日期：1985-09-01 00:00:00

abstract：:We have cloned the cDNA of TBA-1, the Nematode polyprotein allergen (NPA) of Toxocara canis and found it to be most similar to ABA-1, the Ascaris NPA, on the basis of amino acid sequence. We could study the antigenic properties of an E-coli synthesized fusion protein prepared with the cloned gene since no glycosylatio...

journal_title：Parasite immunology

authors： Yahiro S,Cain G,Butler JE

更新日期：1998-08-01 00:00:00

abstract：:Carboxy-terminus of merozoite surface protein-1 (MSP-1(19) ) is the major protein on the surface of the plasmodial merozoite that acts as one of the most important blood-stage vaccine candidates. The present investigation was designed to evaluate the immune responses when either two recombinant antigens (rPvMSP-1(19) ...

journal_title：Parasite immunology

authors： Mehrizi AA,Zakeri S,Rafati S,Salmanian AH,Djadid ND

更新日期：2011-11-01 00:00:00

abstract：:Successful endoparasites of mammals must outwit the sophisticated immune systems of their hosts that have evolved to detect and destroy/eradicate them. Many species of helminth parasite can directly or indirectly manipulate host immunity: helminth-derived molecules can suppress or skew activity of many immune cell phe...

journal_title：Parasite immunology

authors： McKay DM

更新日期：2015-06-01 00:00:00

abstract：:The present study was designed to investigate the role of neutrophils during the development of Schistosoma japonicum egg granulomas, in C57BL/6 and CBA mice. Laid eggs were implanted into the liver and monoclonal antibody, RB6-8C5, was used to eliminate neutrophils. After daily antibody treatment between days 9 and 1...

journal_title：Parasite immunology

authors： Hirata M,Hara T,Kage M,Fukuma T,Sendo F

更新日期：2002-09-01 00:00:00

abstract：:Two monoclonal antibodies against the surface of S. mansoni schistosomula were found to confer significant passive protection to mice (M7B3A, range 28-70%; M22H12C, range 14-58%). No additive effect was observed when both were transferred together. Neither McAb bound to the cercarial surface but both bound to the surf...

journal_title：Parasite immunology

authors： Bickle QD,Andrews BJ,Taylor MG

更新日期：1986-01-01 00:00:00

abstract：:Use of the pig as an animal model in schistosomiasis research is increasing, but knowledge of the porcine immune response to schistosome infection is still very limited. We investigated the immunohistology of different maturation stages of the Schistosoma japonicum egg granuloma in pigs. Liver sections from pigs exper...

journal_title：Parasite immunology

authors： Hurst MH,Willingham AL,Lindberg R

更新日期：2002-03-01 00:00:00

abstract：:The role of the spleen in amoebic infection was examined in mice, using strains selected as being either genetically-susceptible (C57BL/6) or genetically-resistant (A/J) to amoebiasis. Splenectomized and sham-operated animals were inoculated intracaecally with 2.5 X 10(5) polyxenic trophozoites of E. histolytica at 6,...

journal_title：Parasite immunology

authors： Ghadirian E,Kongshavn PA

更新日期：1985-09-01 00:00:00

abstract：:ES-62 is a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae that protects against ovalbumin (OVA)-induced airway hyper-responsiveness in mice by virtue of covalently attached anti-inflammatory phosphorylcholine (PC) residues. We have recently generated a library of small molecule analogues (SMAs...

journal_title：Parasite immunology

authors： Janicova L,Rzepecka J,Rodgers DT,Doonan J,Bell KS,Lumb FE,Suckling CJ,Harnett MM,Harnett W

更新日期：2016-06-01 00:00:00

abstract：:Antibodies and B cells are critical in the protective immune response to the blood stage of the malaria parasite, Plasmodium chabaudi. However, little is known about the development of memory B cells and their differentiation into plasma cells during infection or after re-infection. Here we have shown that B cells wit...

journal_title：Parasite immunology

authors： Stephens R,Ndungu FM,Langhorne J

更新日期：2009-01-01 00:00:00