Abstract:
:We demonstrated recently that immunization with recombinant Neospora caninum profilin (rNcPRO) induces limited protection and a regulatory T-cell response in mice. The aim of this study was to evaluate the immune response elicited by rNcPRO in cattle and assess a strategy to enhance its immunogenicity, combining the addition of T-cell epitopes and immune modulators. We developed a chimeric recombinant profilin fused to functional T-cell epitopes present in the N-terminal sequence of vesicular stomatitis virus (VSV) glycoprotein G (rNcPRO/G). Groups of three cattle were immunized with two doses (2 weeks apart) of rNcPRO or rNcPRO/G formulated with alum hydroxide or a nanoparticulated soya-based adjuvant enriched with Toll-like receptor (TLR) 2 and TLR9 agonists, aimed to tackle the MyD88 pathway (AVECplus). rNcPRO induced only a primary immune response (IgM mediated), while antibodies in rNcPRO/G-vaccinated animals switched to IgG1 after the booster. The vaccine formulated with rNcPRO/G and AVECplus improved the production of systemic IFN-γ and induced long-term recall B-cell responses. Overall, our study provides data supporting the use of T-cell epitopes from VSV glycoprotein G and TLR agonists to enhance and modulate immunity to peptide antigens in bovines, particularly when using small proteins from parasites for which immune responses are usually feeble.
journal_name
Parasite Immunoljournal_title
Parasite immunologyauthors
Mansilla FC,Quintana ME,Cardoso NP,Capozzo AVdoi
10.1111/pim.12354subject
Has Abstractpub_date
2016-11-01 00:00:00pages
663-669issue
11eissn
0141-9838issn
1365-3024journal_volume
38pub_type
杂志文章abstract::The platelets from normal rats interact with microfilariae of Dipetalonema viteae in vitro in the presence of antibodies leading to the killing of the parasite. The antibody involved in this reaction is identified as IgE because the absorption of immune rat serum on anti-rat IgE column or the pretreatment of platelets...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1985.tb00096.x
更新日期:1985-09-01 00:00:00
abstract::Cysticercosis is acquired when swine ingest human faeces contaminated with Taenia solium eggs. Humans become tapeworm carriers when they ingest infected pork meat. They can also develop cysticercosis after inadvertently swallowing T. solium eggs. Human neurocysticercosis (NCC) is considered as a public health problem ...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-3024.2007.00981.x
更新日期:2007-12-01 00:00:00
abstract::Parasitic nematodes of the small-ruminant gastrointestinal tract pose a problem worldwide. The impact of these pathogens is worsened by the emergence of anthelmintic resistance to all three available classes of drugs. In addition to causing considerable economic loss, these parasites are detrimental to the health and ...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-3024.2009.01110.x
更新日期:2009-07-01 00:00:00
abstract::Seven mixed-breed dogs were challenged with either promastigotes or amastigotes of Leishmania donovani infantum strains recently isolated from naturally infected dogs. Different routes and numbers of parasites were utilized and each dog was monitored for at least 1 year post-infection. Anti-parasite specific antibody ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1991.tb00550.x
更新日期:1991-09-01 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
pub_type: 杂志文章,评审
doi:10.1111/pim.12157
更新日期:2015-03-01 00:00:00
abstract::Soluble extracts from salivarian trypanosomes (Trypanosoma brucei brucei, T. evansi and T. congolense) were shown to be capable of inducing murine tumour necrosis factor (mTNF) secretion, both in vivo and in vitro, whereas the soluble extract of an intracellular trypanosome (T. cruzi) failed to do so. Furthermore, the...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1993.tb00577.x
更新日期:1993-11-01 00:00:00
abstract::The role of CD4+ and CD8+ T lymphocytes in the development of a protective immune response against Cryptosporidium muris infection was studied by the reconstitution of severe combined immunodeficient (SCID) mice with well-defined populations of either naive or immune CD8+ or CD4+ T lymphocytes. Adoptive transfer of bo...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2010.01271.x
更新日期:2011-04-01 00:00:00
abstract::The role of MHC class II in the presentation of Heligmosomoides polygyrus antigens has been investigated, using a number of T cell hybridomas produced in A and E positive and negative mice. By using fixed and irradiated antigen presenting cells (APC), further evidence has emerged, to support earlier data, that there c...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1996.tb01028.x
更新日期:1996-09-01 00:00:00
abstract::After several in vitro treatments of a virulent population of Leishmania major with the mutagen, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), five clones (vir-) were obtained that did not produce cutaneous lesions after subcutaneous injection of 10(6) promastigotes. All the control clones (vir+) obtained from the non-...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1987.tb00490.x
更新日期:1987-01-01 00:00:00
abstract::The development of a malaria vaccine is a priority for improved and sustained malaria control. Optimal use of a vaccine in Africa will only be achieved if it can be delivered through the Expanded Programme of Immunization (EPI). We have completed a trial of the peptide vaccine SPf66 in Tanzanian infants, given alongsi...
journal_title:Parasite immunology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-3024.2000.00322.x
更新日期:2000-09-01 00:00:00
abstract::Cyclophosphamide (Cy) is known to produce a marked eosinophilia in mice after antigen challenge. In this study, we studied the effect of Cy on eosinophilia in helminthic infection. Peripheral blood eosinophils were counted in SJL mice following a large dose of Cy injection, infection with Toxocara canis, and both Cy i...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1985.tb00074.x
更新日期:1985-05-01 00:00:00
abstract::Very little has been reported comparing resistance to coccidiosis in fast or slow growing broilers, the latter of which are becoming more prevalent in the broiler industry. We examined mRNA expression in the intestines of fast and slow growing broilers following Eimeria infection. We show that by day 13 post-infection...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12660
更新日期:2019-09-01 00:00:00
abstract::Antibody isotype and epitope specificities were examined in sheep immunized with EG95, a protective recombinant vaccine against hydatid disease. All sheep immunized with EG95 as a fusion protein with glutathione S-transferase (GST) produced prominent IgG antibodies against the EG95 portion of the protein. Linear, anti...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3024.1998.00176.x
更新日期:1998-11-01 00:00:00
abstract::To determine the role of T cells and mast cells in intestinal pathology and immune expulsion of intestinal nematodes, worm burdens, goblet cell responses and villus structures were analysed in T- and B-cell-deficient severe combined immunodeficiency (SCID) mice, athymic nu/nu mice and mast cell deficient W/W(v) mice a...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2009.01123.x
更新日期:2009-08-01 00:00:00
abstract::Malaria, particularly Plasmodium falciparum, continues to disproportionately affect pregnant women. In addition to the profoundly deleterious impact of maternal malaria on the health of the mother and foetus, malaria infection in pregnancy has been shown to affect the development of the foetal and infant immune system...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12573
更新日期:2019-03-01 00:00:00
abstract::Neospora caninum is a coccidian parasite of veterinary importance by causing abortion or stillbirth in cattle among other problems in diverse animal species. We assessed an experimental murine model for its suitability to study the immune response to N. caninum infection. Thus, wild-type (wt) C57BL/6 mice and B-cell (...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3024.1999.00223.x
更新日期:1999-05-01 00:00:00
abstract::Migration of human peripheral blood granulocytes in response to microfilariae of O. volvulus was demonstrated using modified Boyden chambers. Granulocyte migration was significantly enhanced when microfilariae were preincubated with heat-inactivated immune serum (delta IS), then added to a fresh serum source (P less t...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1983.tb00738.x
更新日期:1983-03-01 00:00:00
abstract::Serum antibody responses of mice exposed to Philippine isolates of Schistosoma japonicum have been analysed by immunoprecipitation of exogenously radiolabelled antigens extracted from adult worms. Attention was focused on labelled protein antigens differentially recognized by sera of mice that differ genetically in th...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1985.tb00067.x
更新日期:1985-03-01 00:00:00
abstract::The humoral responses of eight cats infected with Brugia pahangi to somatic antigens from all life-cycle stages were examined quantitatively by ELISA and qualitatively by immunoblotting for almost a year post infection. Six cats spontaneously became amicrofilaraemic: their production of IgG antibodies against somatic ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1986.tb00851.x
更新日期:1986-07-01 00:00:00
abstract::Golden hamsters (Mesocricetus auratus) infected with Leishmania donovani develop a disease similar to human kala-azar. There is conspicuous hypergammaglobulinaemia and their T cells do not respond to stimulation by parasite antigens. The impairment of the cellular immune response seems to be restricted to parasite ant...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1992.tb00005.x
更新日期:1992-01-01 00:00:00
abstract::The serodiagnosis of human toxocariasis is difficult. Specific IgGs detected routinely with ELISA based on Toxocara excretory-secretory (TES) antigens often persist for years at an elevated level, which does not allow either the differentiation between an active and persistent infection or monitoring of the effect of ...
journal_title:Parasite immunology
pub_type: 临床试验,杂志文章
doi:10.1111/pim.12400
更新日期:2017-01-01 00:00:00
abstract::There is good evidence for costs to both the uses of immune defences and their development and maintenance. The optimal defence will be a balance of these costs with the risk of infection and the virulence of the disease. It is therefore clear that the life-history characteristics of both host and parasite will impact...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12055
更新日期:2013-11-01 00:00:00
abstract:AIMS:Industrial growth has increased the exposure to endocrine disruptor compounds (EDCs) in all organisms. Bisphenol A (BPA), an EDC, has been demonstrated to be involved in the susceptibility to parasite infections. However, few studies have analysed this connection in more depth. The aim of this study was to determi...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12733
更新日期:2020-09-01 00:00:00
abstract::The capacity of peritoneal exudate cells (PEC) obtained from mice infected or immunized with Plasmodium berghei to produce reactive oxygen species (ROS) and the biological basis of this response was investigated, using luminol-dependent zymosan-triggered chemiluminescence (CL). CL response of PEC from infected mice in...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1987.tb00509.x
更新日期:1987-05-01 00:00:00
abstract::A surface enriched fraction was prepared from adults of Onchocerca volvulus by brief extraction of entire worms with detergent. This was then gel filtered to yield a low molecular weight fraction which functioned specifically in ELISA analysis. An identical result was also obtained when the related cattle parasite, O....
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1987.tb00487.x
更新日期:1987-01-01 00:00:00
abstract::The course of primary infections with Nippostrongylus brasiliensis was followed in nude (CBH/R nu/nu) and heterozygote (CBH/R nu/+) rats. In both nude and heterozygote rats peak egg production by N. brasiliensis occurred on days 7 and 8 post-infection. However, whereas in heterozygote rats egg production declined rapi...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1991.tb00553.x
更新日期:1991-11-01 00:00:00
abstract::The Bacillus thuringiensis Cry1Ac protoxin (pCry1Ac) is a promising mucosal immunogen and adjuvant that induces protective immunity against Naegleria fowleri and malaria infection models. We determined whether pCry1Ac acted as a protective adjuvant against infection with Taenia crassiceps. BALB/C mice were thrice i.p....
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12103
更新日期:2014-06-01 00:00:00
abstract::CBA/J mice are resistant to Leishmania major infection but are permissive to L. amazonensis infection. In addition, CBA/J macrophages control L. major but not L. amazonensis infection in vitro. Phagocytosis by macrophages is known to determine the outcome of Leishmania infection. Pattern recognition receptors (PRR) ad...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2009.01093.x
更新日期:2009-04-01 00:00:00
abstract::Mice infected with lethal P. berghei or P. yoelii malaria develop anti-lymphocyte autoantibodies less than a week after infection. The autoantibodies are IgM, T-dependent and cytotoxic to a subpopulation of non-T lymphocytes at 37 degrees C in the presence of mouse or guinea-pig complement. Non-lethal P. yoelii and P....
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1983.tb00742.x
更新日期:1983-05-01 00:00:00
abstract::Indonesian thin-tail (ITT) sheep can resist infection with Fasciola gigantica but not F. hepatica and presents an ideal model to investigate the mechanisms of liver fluke resistance in a natural host. This study examines the local and systemic immune responses of sheep during Fasciola infection and demonstrates that d...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2011.01305.x
更新日期:2011-09-01 00:00:00