Abstract：
:A proteinaceous inhibitor of alpha-amylase, Tendamistat, was evaluated as an immunogen to induce antibodies that mimic the enzyme activity and to investigate a new strategy to produce catalytic antibodies. Anti-Tendamistat polyclonal antibodies (pAbs) were shown to cross-react with acarbose, a strong carbohydrate inhibitor of alpha-amylases, and the alpha-amylase carbohydrate substrates, maltotetraose and maltoheptaose. Catalytic features of pAbs were characterized after denaturing natural serum alpha-amylase by treatment at pH 10 and in the presence of EDTA. A significant residual alpha-amylase activity was detected and associated with the IgG fraction, demonstrating that some antibodies behave as a functional mimic of natural amylase. Such antibodies, which behave as an "internal image" of the alpha-amylase, were used as immunogens to elicit anti-idiotype antibodies. It was demonstrated that the anti-idiotype antiserum contains a significant amount of antibodies that bind to porcine pancreatic amylase, which shows that they contain structural information from the original hapten, Tendamistat.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Gonçalves O,Dintinger T,Blanchard D,Tellier Cdoi
10.1016/s0022-1759(02)00238-7keywords:
subject
Has Abstractpub_date
2002-11-01 00:00:00pages
29-37issue
1-2eissn
0022-1759issn
1872-7905pii
S0022175902002387journal_volume
269pub_type
杂志文章abstract：:We present a scheme for routine screening of patients' sera for monoclonal immunoglobulin by isoelectric focusing in agarose gels. Using this method combined with immunofixation, we have been able to detect monoclonal immunoglobulin in the sera of patients, and to identify the isotype of the immunoglobulin when conven...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90393-9
更新日期：1983-11-11 00:00:00
abstract：:A generally applicable method was developed for the rapid and quantitative detection of both toxin- and virus neutralizing antibodies. The method was optimized for three different biological agents, i.e., Shigella toxin, influenza viruses (A/Beying, A/Taiwan and B/Yamagata) and Chikungunya virus. The in vitro micro-cy...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90356-c
更新日期：1993-12-03 00:00:00
abstract：:Human interleukin-7 (IL-7) is a cytokine that appears to be critical for early T- and B-cell development and although IL-7 is currently under investigation as a therapeutic agent in a variety of hematolymphopoietic disorders, there have been few instances of the detection or investigation of this cytokine using a biol...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00237-9
更新日期：2000-03-06 00:00:00
abstract：:Efficient monitoring of HIV-1-specific T-cells is crucial for the development of HIV-1 vaccines and immunotherapies. Currently, mainly peptides and vaccinia vectors are used for detection of HIV-1-specific cytotoxic T-lymphocytes (CTL), however, as HIV-1 is a variable virus, it is unknown to what extent the T-cell res...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2012.03.005
更新日期：2012-06-29 00:00:00
abstract：:A solid-phase enzyme immunoassay for the measurement of anti-acetylcholine receptor antibodies in the sera of patients with myasthenia gravis is reported. Sufficient amounts of acetylcholine receptor for the sensitive detection of anti-acetylcholine receptor antibody were directly fixed to Costar serocluster 96-well E...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90401-0
更新日期：1984-10-26 00:00:00
abstract：:We present the development and testing of a novel assay of lymphocyte adhesion based on time-resolved morphological measurements of intercellular aggregation. Homotypic lymphocyte aggregation is induced according to various protocols and monitored for several hours using video microscopy and time-lapse recording. Digi...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90324-z
更新日期：1993-11-05 00:00:00
abstract：:A single-step method for purification of mouse monoclonal antibodies directly from ascitic fluids using hydroxylapatite column chromatography is described. The procedure yields highly purified IgG or IgM antibodies. The purified immunoglobulin is essentially free of contaminating mouse albumin, transferrin, and other ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90488-0
更新日期：1985-01-21 00:00:00
abstract：:Foot and mouth disease is caused by a non-enveloped virus (FMDV), which disposes several antigenic sites at the surface of their capsid proteins. The most relevant and immunodominant antigenic site of FMDV (site A or AnSA) includes a key virus-cell interaction element (RGD motif) located in the Viral Protein 1 (VP1), ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.06.008
更新日期：2015-10-01 00:00:00
abstract：:The therapeutic use of dendritic cells (DC) in antigen-specific anti-tumor vaccines, requires sufficient numbers of functional DC, the preparation of which should comply with the code of Good Manufacturing Practice. In addition, the expression of tumor specific antigen should be possible in these DC. As a preclinical ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(00)00214-3
更新日期：2000-07-31 00:00:00
abstract：:The human beta2-microglobulin antigen-antibody system was used as a model to illustrate the versatility of a microradioimmunoassay technique using protein A-bearing Staphylococcus aureus Cowan I strain (SACI) bacteria as a non-specific immunoadsorbent in place of a second antibody. Experimental conditions are describe...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(79)90113-3
更新日期：1979-01-01 00:00:00
abstract：:LRP6 is a cell surface molecule that plays a critical role in the Wnt signaling pathway, and is implicated in numerous human diseases. Studies of cellular signaling mediated by LRP6 have relied on overexpression experiments, due to the lack of good monoclonal antibodies (mAbs) reactive with native LRP6 ectodomain. By ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2009.11.016
更新日期：2010-01-31 00:00:00
abstract：:This paper examines the parameters necessary for the efficient measurement of anti-Theiler's murine encephalomyelitis virus (TMEV) antibodies in an affinity-dependent manner using a variation of a solid-phase particle concentration fluorescence immunoassay (PCFIA). By allowing antibody to react with fluorochrome-label...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(89)90384-0
更新日期：1989-04-21 00:00:00
abstract：:A sandwich amperometric enzyme immunoassay with flow injection for alpha-fetoprotein in human serum has been developed with alkaline phosphatase as the enzyme label. p-Hydroxyphenyl phosphate was used as the substrate for alkaline phosphatase. The hydrolysis product, hydroquinone, was detected by oxidative amperometry...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(96)00044-0
更新日期：1996-06-14 00:00:00
abstract：:The optimal conditions for the detection of outer membrane proteins (OMPs) and lipopolysaccharide (LPS) of Pasteurella haemolytica by immunoblotting were evaluated. The variables examined included the equilibration time of the gels before transfer, composition of the transfer buffer, type of blotting membrane, blockin...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90072-8
更新日期：1994-01-03 00:00:00
abstract：:This study investigates the applicability of D-PAM, the inverso form of the Protein A Mimetic synthetic peptide affinity ligand (PAM) obtained from the screening of a multimeric combinatorial peptide library, in monoclonal IgG isolation from ascitic fluids and cellular supernatants. D-PAM affinity columns, prepared by...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.01.014
更新日期：2008-04-20 00:00:00
abstract：:A rapid and highly reproducible protocol which permits the detection of quantities of estrogen receptor as low as 5 fmol/mg protein is described. The separation of free and receptor-bound hormone is achieved by specific immunoprecipitation of the hormone-receptor complex. This procedure can be performed without pertur...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90234-7
更新日期：1991-11-05 00:00:00
abstract：:Two murine IgM monoclonal antibodies (MAs) directed against the lipid A portion of bacterial lipopolysaccharide (LPS) were compared in their binding to Re LPS and lipid A and their idiotypic make-up with rabbit anti-idiotypic sera. Horseradish peroxidase (HRPO)-labelled MAs 8-2 and 26-20 bound equally well to Re LPS. ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90308-i
更新日期：1990-06-12 00:00:00
abstract：:Using in vitro established tumour cell lines attempts were made to assess the suitability of tetrazolium salt reduction (MTT) assay to replace the conventional radioactive base techniques for measuring cell proliferation and cell killing. The optimum conditions for MTT loading time, concentration of MTT and the time f...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90012-v
更新日期：1993-03-15 00:00:00
abstract：:Epitope mapping with synthetic peptides bound to derivatized paper discs has been investigated using the discs both as a solid-phase matrix for peptide synthesis as well as the solid phase in immunologic testing procedures without detachment of the peptides from the paper discs. Using the T bag (tea bag) method the si...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90293-g
更新日期：1993-05-26 00:00:00
abstract：:Radioimmunoassay of anti-tetanus antibodies produced in human serum in response to tetanus toxoid immunization was carried out by employing the non-specific precipitation effect of ammonium sulphate described by Farr (1958). The results showed that the method was sensitive and was able to differentiate between immune ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(75)90088-5
更新日期：1975-01-01 00:00:00
abstract：:The identification of T cell epitopes that elicit a weak T cell response is technically challenging due to the relatively low resolution of many available screening assays. Peptide immunization can confirm the immunogenicity of a given peptide, however, this also often induces a low frequency response in lymphoid orga...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(02)00106-0
更新日期：2002-08-01 00:00:00
abstract：:Cytokines are critical regulators of the development and maturation of hematopoietic cells. Signal transduction via cytokine receptors proceeds through activation of the JAK-STAT pathway to stimulate cell proliferation, differentiation and effector functions. Phosphorylation of intracellular STAT molecules by the rece...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(03)00177-7
更新日期：2003-07-01 00:00:00
abstract：:Mixtures of sheep erythrocytes and immune spleen cells from mice were incubated in shallow slide chambers coated with erythrocyte ghosts or anti-mouse Ig, with poly L-lysine as a coupling agent. Antigen-binding cells and erythrocytes surrounding antibody-releasing lymphocytes became bound to the reactive surfaces by i...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90180-1
更新日期：1978-01-01 00:00:00
abstract：:This paper describes the application of experimental design techniques to optimize a sensitive ELISA for a hapten molecule with a calibration range of 0-1000 pg/ml. Ten factors that were expected to affect the assay performance were initially screened, followed by factorial experiments to delineate the effects of the ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00262-6
更新日期：1996-04-19 00:00:00
abstract：:A procedure is described making it possible to obtain quantitative data with the immunohistochemical peroxidase anti--peroxidase (PAP) technique. After applying PAP on fixed fibroblast preparations, peroxidase enzymic activity is measured on solubilized immune-complexes. The results show this technique to be sensitive...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90114-x
更新日期：1978-01-01 00:00:00
abstract：:In an attempt to find a direct method for the determination of circulating immune complexes in pathological sera we studied the ability of Cibacron Blue 3GA covalently bound to Sepharose 4B to bind heat- or antigen-aggregated human IgG. Blue-Sepharose was found to bind significant amounts of aggregated IgG (about 1.5 ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90317-4
更新日期：1983-12-16 00:00:00
abstract：:The application of freeze-dried paraffin sections for immunohistology eliminates many of the problems associated with the cryostat technique: the sections are thin sufficiently, the cell morphology is improved, there are no diffusion artifacts and the intensity of immunohistological reactions is superior to that obtai...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90365-9
更新日期：1982-01-01 00:00:00
abstract：:A new method for quantitative antigen analysis is described which precludes necessity for long incubation periods. The new technique, Surface Immune Precipitation (SIP), entails the application of an antigen sample droplet directly onto the surface of a gel containing antibody, the gel being supported by a reflecting ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90211-8
更新日期：1976-01-01 00:00:00
abstract：:A relatively simple, specific and sensitive radioimmunoassay system has been developed for the detection of heterophile Hanganutziu-Deicher (H-D) antigen(s) and antibodies. The 125I-labeled H-D antigen-active molecule used for the assay is a bovine erythrocyte major glycoprotein previously found to have a strong H-D a...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90168-1
更新日期：1985-06-12 00:00:00
abstract：:Studies describing the induction of apoptosis for CD4 mAbs do not delineate between epitope-dependent and Fc-driven epitope cross-linking induced cell death. Keliximab and clenoliximab are two CD4 mAbs that differ only in their heavy chain isotypes, being an IgG1 and a modified IgG4, respectively. These antibodies sup...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00447-1
更新日期：2001-11-01 00:00:00
