Abstract:
:Entamoeba histolytica is known to induce host cell death via activation of calpain and caspases. In this study, we investigated the specific proteases involved in the degradation of cytoskeletal proteins during Jurkat T-cell death induced by E. histolytica. Amoebic trophozoites induced marked degradation of paxillin, Cas, vimentin, vinculin and talin, as well as α- or β-spectrin, in Jurkat T cells. The cleavage effects of E. histolytica were strongly retarded by pretreatment with a calpain inhibitor, but not with a pan-caspase inhibitor. In addition, calpain knockdown with siRNA in Jurkat T cells effectively inhibited E. histolytica-induced PARP, paxillin, α-spectrin, β-spectrin and talin degradation, as compared to scrambled siRNA. These results suggest that calpain plays a crucial role in the cleavage of cytoskeletal proteins during cell death induced by E. histolytica.
journal_name
Parasite Immunoljournal_title
Parasite immunologyauthors
Lee YA,Kim KA,Shin MHdoi
10.1111/j.1365-3024.2011.01290.xsubject
Has Abstractpub_date
2011-06-01 00:00:00pages
349-56issue
6eissn
0141-9838issn
1365-3024journal_volume
33pub_type
杂志文章abstract::African trypanosomes cause human and animal African trypanosomiases, which are chronic, debilitating and often fatal diseases of people and livestock in sub-Saharan Africa. The extracellular protozoan parasites are exemplars of antigenic variation. They direct host-protective B-cell and T-cell immune responses towards...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12387
更新日期:2016-12-01 00:00:00
abstract::The incidence of both type 1 (T1D) and type 2 diabetes (T2D) is drastically increasing, and it is predicted that the global prevalence of diabetes will reach almost 600 million cases by 2035. Even though the pathogenesis of both types of diabetes is distinct, the immune system is actively involved in both forms of the...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12401
更新日期:2017-05-01 00:00:00
abstract::The kinetics of macrophage activation were compared among inbred strains of mice (C3H, BALB, B6 and B10.A) that are known to differ in their relative resistance to infections with the myotropic strains (Colombian and CL) of Trypanosoma cruzi. The parameters utilized to measure macrophage activation were rapid spreadin...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1989.tb00675.x
更新日期:1989-07-01 00:00:00
abstract::Theileria parva is a tick-borne intracellular protozoan of cattle, with obligate sequential differentiation stages in lymphocytes and erythrocytes. Immunity is mediated by cytotoxic T lymphocytes (CTL) that target and clear parasitized lymphocytes but allow persistence of infected erythrocytes, which are required for ...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-3024.2006.00824.x
更新日期:2006-07-01 00:00:00
abstract::The merozoite surface protein 2 of P. falciparum is highly polymorphic in nature, but has regions of almost complete conservation at its N- and C-termini. We produced a chimeric recombinant protein comprising these regions only (hereafter termed NC). Mice immunized with the NC antigen produce antibodies at levels comp...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3024.2000.00293.x
更新日期:2000-05-01 00:00:00
abstract::Dirofilaria immitis is the agent of the heartworm disease in canids and felids, and of pulmonary dirofilariosis in man. Like other filariae, D. immitis harbours endosymbion Wolbachia bacteriae. In this work we analyse the response of specific IgE antibodies against both D. immitis antigens and the Wolbachia surface pr...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2008.01060.x
更新日期:2008-11-01 00:00:00
abstract::Type I hypersensitivity reactions in the intestinal tract of sensitized animals may contribute to resistance to reinfection with Fasciola hepatica. Colonic mucosae isolated from previously infected rats were voltage clamped in Ussing chambers. Antigen was prepared as a crude homogenate from adult liver fluke. Assay of...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1993.tb00630.x
更新日期:1993-08-01 00:00:00
abstract::A comparison of Plasmodium chabaudi AS infection in BALB/c and BALB/c IgM-deficient mice demonstrated a protective role for IgM during infection. IgM-/- mice, unlike microMT mice, display competent B cell humoral immune responses. Increased susceptibility of IgM-/- mice was demonstrated by increased mortality, an adva...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2005.00760.x
更新日期:2005-05-01 00:00:00
abstract::Particular immunopathological features and their effects on the vascular permeability of different ocular structures were analysed in two dogs naturally infected by Leishmania infantum. The existence of specific anti-Leishmania immunoglobulin G (IgG) in the aqueous humour was confirmed by the ELISA technique. There wa...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3024.1996.d01-39.x
更新日期:1996-12-01 00:00:00
abstract::The K1 peptide is a CD8(+)T cell HLA-A*0201-restricted epitope derived from the Trypanosoma cruzi KMP-11 protein. We have previously shown that this peptide induces IFN-gamma secretion by CD8(+)T cells. The aim of this study was to characterize the frequency of K1-specific CD8(+)T cells in chagasic patients. Nineteen ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2010.01206.x
更新日期:2010-07-01 00:00:00
abstract::Toxoplasma gondii is a highly successful parasite that can manipulate host immune responses to optimize its persistence and spread. As a result, a highly complex relationship exists between T. gondii and the immune system of the host. Advances in imaging techniques, and in particular, the application of two-photon mic...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12161
更新日期:2015-03-01 00:00:00
abstract::Resistance to S. mansoni cercarial challenge, induced by prior infection of rats with cercariae, is analysed by substitution of alternatives to the primary cercarial exposure. Intravenous injections of either live or killed 4-week stage worms have been examined, utilizing two different routes of injection, one or two ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1984.tb00790.x
更新日期:1984-03-01 00:00:00
abstract::Intestinal helminth infections are highly prevalent in the developing world, often resulting in chronic infection and inflicting high host morbidity. With the emergence of drug-resistant parasites, a limited number of chemotherapeutic drugs available and stalling vaccine efforts, an increased understanding of antihelm...
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/pim.12406
更新日期:2017-02-01 00:00:00
abstract::Dipetalonema viteae (Filarioidea) infections were established in inbred strains of mice by the s.c. implantation of adult female worms and the resulting microfilaraemia and adult worm survival monitored. BALB/c mice were the most susceptible strain examined, showing a high level microfilaraemia of approximately 6 mont...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1985.tb00081.x
更新日期:1985-07-01 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 immunological basis of resistance to Brugia pahangi infection in rats was studied. Infections were investigated in athymic rnu/rnu rats and in rats treated with the immuno-suppressive agents cyclosporin A (CsA) or cyclophosphamide (Cy). The recovery of adult worms in normal rats was 1-2% in comparison to 12.2% rec...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1992.tb00012.x
更新日期:1992-07-01 00:00:00
abstract::The purpose of this study was to monitor local cytokine responses to Dictyocaulus viviparus in calves during primary infection and re-infection. Bronchoalveolar lavage fluid (BALF) was collected weekly from experimentally infected calves and interleukin-2 (IL-2), IL-4, IL-5, IL-10 and IFN-γ mRNA expression was quantif...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12083
更新日期:2014-02-01 00:00:00
abstract::Research on infectious agents as a possible cause of schizophrenia has become prominent in the past decade. Toxoplasma gondii has emerged as a prime candidate for a variety of reasons; (i) many studies have reported that individuals with schizophrenia, compared to controls, have a higher prevalence of antibodies to T....
journal_title:Parasite immunology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-3024.2009.01131.x
更新日期:2009-11-01 00:00:00
abstract::HIV and T. gondii infection markers were measured among 383 Intravenous Drug Users (IDU). And cytokine concentrations (IL-4, IL-6, IL-10, IL-12, IFN-gamma and TNF-alpha) were determined. The results showed IDU with HIV infection or HIV/T. gondii co-infection could disturb Th regulatory mechanism. ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2009.01174.x
更新日期:2010-02-01 00:00:00
abstract::Groups of five dogs were vaccinated against Babesia canis using soluble parasite (SPA) antigens from in vitro cultures. Although vaccination did not significantly alter peripheral parasitaemia upon challenge, protected animals had lower levels of SPA in the plasma after a challenge infection. The severity of anaemia c...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1046/j.1365-3024.1996.d01-1.x
更新日期:1996-01-01 00:00:00
abstract::Mice can be immunized to Plasmodium vinckei by repeated infections followed by cure. Such immunity is dependent on CD4 T cells and an architecturally modified spleen, but has little requirement for antibody. Thus, athymic mice can be exposed to P. vinckei and cured, but do not develop immunity. They are resistant to c...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1991.tb00548.x
更新日期:1991-09-01 00:00:00
abstract::The knowledge on immune mechanisms of chronic urticaria (CU) at the cytokine level is widely scarce. We compared pro- and anti-inflammatory as well as Th1- and Th2-associated serum cytokine levels in two phenotypes of CU: associated with (CU+) and without (CU⁻) sensitization against Anisakis simplex, a ubiquitous fish...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.2011.01282.x
更新日期:2011-06-01 00:00:00
abstract::Schistosomiasis poses a serious threat to public health, and the infection will develop into chronic and advanced late-stage disease if not treated. Apart from the clinical signs due to immune reactions to schistosome eggs trapped in host tissues, it also increases the risk for the development of autoimmunity reflecte...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12577
更新日期:2018-10-01 00:00:00
abstract::Crude total antigen (CTA) from Leishmania infantum and recombinant antigen K39 (rK39) and recombinant antigen K28 (rK28) were compared using an ELISA for the diagnosis of canine visceral leishmaniosis (CVL). Forty-two blood samples from healthy dogs from a nonendemic area and 80 blood samples from an endemic area for ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12281
更新日期:2015-12-01 00:00:00
abstract::Cryptosporidiosis is a zoonotic protozoan disease that affects the gastrointestinal tract of animals and humans. Diarrhoea as the most important indication of the infection leads to high economic losses in livestock industries and is a life threatening infection in immunocompromised individuals. In the absence of the ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12317
更新日期:2016-05-01 00:00:00
abstract::On a B10 (Lshs) genetic background, the development of acquired T cell mediated immunity to Leishmania donovani infection in mice is under H-2 linked genetic control. Following intravenous inoculation of 10(7) amastigotes three phenotypic patterns of recovery have been described: 'early cure' (H-2r,s), 'cure' (H-2b) a...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1983.tb00760.x
更新日期:1983-09-01 00:00:00
abstract:AIMS:Our aim was to investigate the skin-homing T-cell immune responses triggered in patients with Demodex infestation and/or rosacea. METHODS:Collected whole blood samples were divided into four groups: control subjects; nonrosacea patients with Demodex infestation (Demodex group); papulopustular rosacea (PPR) patien...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12658
更新日期:2019-08-01 00:00:00
abstract::The current study aimed to detect the complement-binding proteins in the excretory-secretory (ES) products of adult filarial parasite Setaria equina (SeqES). Tests for complement activation pathways (CH50 and APH50 ) in normal human serum (NHS) after incubation with SeqES were performed. Quantitative detection of comp...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/pim.12686
更新日期:2020-02-01 00:00:00
abstract::The p190 protein (also called MSA1 or MSP1) of the asexual blood stage forms of Plasmodium falciparum, a human malaria vaccine candidate, shows polymorphism between different isolates. Mice were immunized with p190-3, a recombinant protein which contains mostly conserved sequences derived from the p190 protein of the ...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1993.tb00592.x
更新日期:1993-03-01 00:00:00
abstract::Eleven strains of Trypanosoma cruzi, originating from a variety of vertebrate and invertebrate hosts in distinct geographical regions, were examined for the reactivity of metacyclic stages with the monoclonal antibody 1G7. Trypomastigotes of five strains were susceptible to complement-dependent 1G7-mediated lysis. Hig...
journal_title:Parasite immunology
pub_type: 杂志文章
doi:10.1111/j.1365-3024.1988.tb00227.x
更新日期:1988-07-01 00:00:00