Abstract：
:We describe an ex vivo rat infection model to study protective immunity against Fasciola hepatica at the gut level. An exact number of newly excysted juveniles (NEJs) was injected into a gut segment with an intact blood supply and which was still attached to a live anaesthetized rat. NEJs that penetrated the gut wall during the following 6 h were recovered from a beaker filled with medium and were counted under a microscope. This infection model was validated and enabled us to exactly quantify the infection dose whilst at the same time exactly quantifying the number of NEJs penetrating the gut wall. The mean sum of NEJs that migrated through the gut wall into the beaker (peritoneal fraction), plus NEJs that remained in the gut wall and the gut lumen was 87% of the infective dose (+/-3.6% SEM; n=18). The function of the ex vivo segments was well-preserved, as demonstrated by only minor leakage of an inert liquid marker. The ex vivo model enabled us to measure protection against F. hepatica at the gut level. In naive rats 52% (+/-2.4% SEM; n=40) of the injected NEJs penetrated the gut wall, whereas in previously infected rats only 12% (+/-1.8% SEM; n=40) were able to do so, irrespective of the infection dose. Thus, when rats were orally primed, the migration of NEJs through the gut wall was 77% less than the migration in naive rats. We conclude that the ex vivo model should be valuable in studies of the induction and expression of protective immunity against F. hepatica in the intestine, and will aid in development and optimization of vaccines.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
van Milligen FJ,Cornelissen JB,Gaasenbeek CP,Bokhout BAdoi
10.1016/s0022-1759(98)00026-xsubject
Has Abstractpub_date
1998-04-15 00:00:00pages
183-90issue
2eissn
0022-1759issn
1872-7905pii
S0022-1759(98)00026-Xjournal_volume
213pub_type
杂志文章abstract：:A solid-phase chemiluminescence immunoassay for determining immunoglobulin G (IgG) in eluates of psoriatic scales is described. Polystyrene balls coated with protein A bound the IgG present in the eluates and in human sera. The bound IgG was then detected by a luminol-coupled goat anti-human IgG conjugate, characteriz...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90184-4
更新日期：1984-05-25 00:00:00
abstract：:The aim of this study was to compare the techniques of indirect immunofluorescence assay (IFA) and flow cytometry to clinical and laboratorial evaluation of patients before and after clinical cure and to evaluate the applicability of flow cytometry in post-therapeutic monitoring of patients with American tegumentary l...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2012.11.002
更新日期：2013-01-31 00:00:00
abstract：:We have developed a sandwich enzyme-linked immunosorbent assay (ELISA) for the determination of human heart type fatty acid-binding protein (H-FABP) in human plasma and urine using the combination of two distinct monoclonal antibodies (MAbs) directed against human H-FABP purified from human heart muscle. The total ass...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)00248-u
更新日期：1995-01-13 00:00:00
abstract：:The identification of naturally processed peptides presented by molecules of the major histocompatibility complex (MHC) has progressed significantly over the past decade. The elution of peptides from immunoaffinity purified complexes of MHC class I or class II molecules has provided highly specific biochemical informa...
journal_title：Journal of immunological methods
pub_type： 杂志文章,评审
doi：10.1016/s0022-1759(00)00361-6
更新日期：2001-03-01 00:00:00
abstract：:A method for determining the affinity and the concentration of mouse monoclonal antibodies against human IgG has been developed. The method comprises two steps. First, monoclonal antibodies are allowed to combine with radioiodinated human IgG. Secondly, mouse monoclonal IgG with and without complexed IgG is precipitat...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90305-2
更新日期：1982-01-01 00:00:00
abstract：:Protein phosphorylation is a major molecular mechanism by which cellular function is regulated. In order to accomplish rapid and specific biochemical changes via phosphorylation, the activity of a protein kinase must be dynamically regulated. Historically, the activity of each protein kinase has been analyzed using a ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(00)00292-1
更新日期：2000-12-01 00:00:00
abstract：:In most assays of chemotaxis the gradient of the chemotactic factor is established and later destroyed by its diffusion through some matrix. The characteristics of the gradient depend upon the geometry of the assay system, the diffusion coefficient of the chemotactic factor and the concentration of the chemotactic fac...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90079-x
更新日期：1981-01-01 00:00:00
abstract：:Neutrophils are a critical component of the innate immune response to invading microbial pathogens. However, an excessive and/or prolonged neutrophil response can result in tissue injury that is thought to underlie the pathogenesis of various inflammatory diseases. The development of novel therapeutic strategies for i...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.10.004
更新日期：2009-01-30 00:00:00
abstract：:Limiting dilution (LD) cultures are often used to study cellular heterogeneity in responses of murine splenocytes to specific or polyclonal activation. LD titration curves often reveal a nonlinear dependence of response on input cell dose. Although 'zigzag' shaped curves of this kind are often interpreted and analyzed...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00241-3
更新日期：1996-02-05 00:00:00
abstract：:A continuous cell-line has been shown to be adaptable to preparation of supernatants containing lymphokine activities. Separation and partial purification of migration inhibiting, colony stimulating and interferon activities from such preparations has been achieved by the use of density gradient iso-electric focusing....
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90002-8
更新日期：1976-01-01 00:00:00
abstract：:Pathologic rheumatoid factor (RF) levels are hallmarks of several human diseases. Production of monoclonal RF in vitro is essential for studies of the antigenic specificities of RF, as well as for a dissection of the mechanisms of aberrant RF+ B cell activation. We have expanded upon previous methods to develop a flow...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2010.09.022
更新日期：2011-01-05 00:00:00
abstract：:[75Se]selenomethionine (75SeM) has been shown to provide several advantages over Na(2)51CrO4 (51Cr) labelling of metabolizing target cells: high labelling efficiency and low spontaneous release of 75SeM-labelled target cells permit improved monitoring of cytotoxicity due to extended effector/target ratios in short- an...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90297-k
更新日期：1993-05-26 00:00:00
abstract：:Surface plasmon resonance is a valuable optical phenomenon for monitoring biomolecular interactions in real time. In this project anti-mouse-Fc was coupled to the carboxymethyl dextran coating on the surface of a CM5 sensor chip (BIAcore) using amine coupling. Monoclonal antibodies (MAbs) to Luteinizing Hormone (LH) w...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00167-7
更新日期：1998-12-01 00:00:00
abstract：:A high non-specific binding of immunoglobulins to plastic surfaces was noted with a number of rat sera, when tested in an indirect 125I-labeled protein-A assay for detection of cell-surface-bound rat immunoglobulins of various classes and IgG subclasses. This type of non-specific binding was found with all types of Ig...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90243-6
更新日期：1984-01-20 00:00:00
abstract：:The usefulness of cryopreserved sheep erythrocytes (unsensitized or coated with fluorescein, IgG-type antibody or complement) for marker tests on human blood lymphocytes was studied. It appears that the rosetting properties or freshly prepared or frozen-stored erythrocytes are not significantly different. The method m...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90118-6
更新日期：1976-01-01 00:00:00
abstract：:The influence of antibody valency in a displacement immunoassay was investigated by comparing the whole antibody molecule with the corresponding Fab-fragment. The displacement immunoassay for the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) takes advantage of the cross-reactivity of monoclonal anti-2,4-D antibodie...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00211-7
更新日期：1999-03-04 00:00:00
abstract：:A double fluorescent antibody method for quantitating human complement-fixing antibody to lymphocyte subclasses has been developed. The indicators in this system are a C6-deficient serum as a non-lytic source of complement, rhodamine-labeled anti-C3 and fluorescein-labeled murine monoclonal antibodies to human lymphoc...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90284-4
更新日期：1985-12-17 00:00:00
abstract：:IL-2 activity is commonly estimated in cell culture supernatants by an IL-2-dependent cell proliferation assay. This method is both reproducible and sensitive. However, it often appears from the literature that statistical analysis of the titration data either is disregarded or, when performed, is based on statistical...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(86)90463-1
更新日期：1986-02-12 00:00:00
abstract：:Transplantation of ascitic P-815 mastocytoma cells intradermally in the ears of syngeneic DBA/2J mice allows a simple and precise quantitation of tumor growth by ear swelling. Tumor growth was retarded and then arrested in allogeneic DBA/1J mice, whereas syngeneic hosts died as a result of tumor dissemination in drain...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90086-2
更新日期：1982-11-26 00:00:00
abstract：:An assay has been developed in which the degree of in vitro spleen cell-mediated sheep red blood cell (SRBC) hemolysis is quantitated spectrophotometrically (QHS). Immune mouse spleen cells, SRBC and guinea pig complement were incubated at 37 degrees C for 1 h in buffer, centrifuged, and the supernatant solutions read...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90232-6
更新日期：1978-01-01 00:00:00
abstract：:Clostridioides difficile (C. difficile) is the most common cause of nosocomial antibiotic associated diarrhoea. The incidence of C. difficile infection (CDI) has been rising worldwide over the last 20 years with consequent rises in morbidity, mortality and healthcare costs, although the incidence has fallen in the UK ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2020.112917
更新日期：2021-01-01 00:00:00
abstract：:Among the many methods currently available for quantifying mRNA transcript abundance, reverse transcription-polymerase chain reaction (RT-PCR) has proved to be the most sensitive. Recently, several protocols for real-time relative RT-PCR using the reporter dye SYBR Green I have appeared in the literature. In these met...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(03)00103-0
更新日期：2003-12-01 00:00:00
abstract：:We have developed an antigen presenting system based on the capsid protein of the Flock House virus (FHV) and used it to display, in different positions on its external surface, two neutralizing epitopes found at residues 735-752 of HIV-1 gp160. We have compared the immunoreactivity of these FHV chimeric proteins and ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(96)00097-x
更新日期：1996-10-16 00:00:00
abstract：:Two micro enzyme immunoassays (microEIA) for circulating immune complexes (CICs) are described. The Raji cell microEIA was similar in sensitivity, reproducibility and specificity to the Raji radioimmunoassay. The F(ab')2 anti-C3 microEIA was comparable to the 2 Raji cell assays. The 2 microEIAs for CICs were used to a...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90258-3
更新日期：1985-11-07 00:00:00
abstract：:The major histocompatibility complex (MHC) class I related receptor, the neonatal Fc receptor (FcRn), rescues immunoglobulin G (IgG) and albumin from lysosomal degradation by recycling in endothelial cells. FcRn also contributes to passive immunity by mediating transport of IgG from mother to fetus (human) or newborn ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2007.11.003
更新日期：2008-02-29 00:00:00
abstract：:The Farr technique has been compared with equilibrium dialysis in regard to its ability to measure antibody concentration and affinity. An excellent qualitative agreement between the two techniques was obtained. Quantitatively, the Farr technique tended to underestimate antibody concentration and overestimate antibody...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(75)90005-8
更新日期：1975-02-01 00:00:00
abstract：:To select sequences complementary to their binding sites, two anti-streptokinase (SK) monoclonal antibodies (mAbs), A4.5 and A5.5, were used in biopanning of 15-mer and hexamer phage-displayed peptide libraries, respectively. mAb A4.5 inhibits the catalytic activity of streptokinase-plasminogen activator complex (SKPA...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(02)00183-7
更新日期：2002-09-15 00:00:00
abstract：:Antibody-based sensors are now widely used in therapeutics, diagnostics, and in environmental monitoring. Recombinant antibodies are becoming integral parts of such devices due to their reported high affinities, their capacity for engineering to achieve highly defined performance characteristics and the fact that thei...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2018.10.005
更新日期：2018-12-01 00:00:00
abstract：OBJECTIVE:The objective of this study was the identification of the stain HIF-alpha using the Image Cytometry, and to help to count the positive cells (with HIF-alpha) and the negative cells (without HIF-alpha) from the same sample. METHOD:17 images of renal tissues from male rats of Winstar lineage; overall, there we...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2017.02.005
更新日期：2017-05-01 00:00:00
abstract：:Vaccination against drugs of abuse shows efficacy in animal models, yet few subjects achieve effective serum antibody titers in clinical studies. A barrier to translation is the lack of pre-vaccination screening assays that predict the most effective conjugate vaccines or subjects amenable to vaccination. To address t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2014.01.010
更新日期：2014-03-01 00:00:00
