Abstract：
:Covalently cross-linked large and intermediate-sized IgA oligomers, prepared with IgA anti-dinitrophenyl (DNP) and bis-DNP-pimelic acid ester, were used to examine the ability of different concentrations (3.5%, 5% and 7%, w/v) of polyethylene glycol (PEG) to precipitate IgA immune complexes (IgA-IC). The size of the IgA-IC precipitated with PEG was determined by gradient polyacrylamide gel electrophoresis and quantitative autoradiography. The standard concentration of 3.5% PEG precipitated only a minor fraction (20%) of the IgA-IC. In contrast, 5% and 7% PEG precipitated 45% and 79% of the complexes, respectively. To test the influence of the antigen on the PEG assay. IgA-IC prepared with IgA anti-DNP and DNP conjugates of either bovine serum albumin or Ficoll were also used. Approximately 38% of these IgA-IC were precipitated with 3.5%, PEG. By comparison, the concentration of 5% and 7% PEG precipitated 60% and 76% of the IgA-IC, respectively. Distilled water rather than the standard borate-buffered saline was shown to be the optimal solvent for resolubilization of the PEG precipitates. Serum samples from 22 IgA nephropathy patients and 12 normal donors were tested with 3.5%, 5% and 7% PEG. Only the 7% PEG assay showed a significant difference between patients and controls (P less than 0.001) in the IgA levels of precipitates. Thus, the use of 7% PEG is recommended for the detection, isolation and analysis of large- and intermediate-sized IgA-IC.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Imai H,Chen A,Wyatt RJ,Rifai Adoi
10.1016/0022-1759(87)90295-xsubject
Has Abstractpub_date
1987-11-05 00:00:00pages
239-45issue
2eissn
0022-1759issn
1872-7905pii
0022-1759(87)90295-Xjournal_volume
103pub_type
杂志文章abstract：:A one-step immunospecific affinity chromatographic method for purification of mouse alpha-fetoprotein (AFP) directly from amniotic fluid is described. The procedure employed a rabbit anti-AFP immunoglobulin-G entrapped in a polyacrylamide gel matrix prepared as a gel slurry. The presence of impurities could not be dem...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(79)90146-7
更新日期：1979-01-01 00:00:00
abstract：:Respiratory enteric orphan virus (reovirus) has been used to study many aspects of the biology and genetics of viruses, viral infection, pathogenesis, and the immune response to virus infection. This report describes the functional activity of virus labeled with Alexa Fluor 488, a stable fluorescent dye. Matrix assist...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2006.05.008
更新日期：2006-07-31 00:00:00
abstract：:An indirect immunofluorescence technique was developed for the detection of antibodies to dsDNA and the simultaneous assessment of antinuclear antibodies 'in toto' (ANA). This assay was based upon the use as substrate of smears of peripheral blood derived from rats infected with Trypanosoma lewisi. T. lewisi possesses...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90192-2
更新日期：1982-01-01 00:00:00
abstract：:Intracellular probes used for oxidative burst evaluation could be a substrate of the multidrug resistance proteins (MDR), which may cause misinterpretation of experimental data. We aimed to study the effect of the culture condition and of the MDR-interfering antioxidant quercetin on free radical measurement in serum d...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2013.12.009
更新日期：2014-03-01 00:00:00
abstract：:The antigen capture capacity of antibodies covalently immobilized on injection-molded polystyrene beads was evaluated. Bromoacetyl groups on the bead surfaces rendered them reactive to protein nucleophilic groups. The bromoacetyl surface exhibited up to a ten-fold greater capacity for protein compared to unmodified po...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90136-6
更新日期：1988-07-22 00:00:00
abstract：:When five cytotoxicity methods compared the toxicity of eosinophil granule major basic protein (MBP) and melittin to K562 and HL-60 cells, strikingly discrepant results were noted. Trypan blue staining, propidium iodide/CellTrackerGreen staining and incorporation of 14C-leucine assays indicated MBP damages > 75% of ce...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00055-1
更新日期：1999-07-30 00:00:00
abstract：:The attachment of cells to plastic tissue culture plates is a widely used criterion of cell viability in microcytotoxicity assays. When cell suspensions of primary human colon carcinoma and melanoma cells which were of low initial viability (assessed by trypan blue exclusion) were allowed to adhere to tissue culture p...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90039-9
更新日期：1981-01-01 00:00:00
abstract：:A new adhesion assay was developed that utilizes buoyancy, rather than washing or centrifugation, to remove non-adherent cells. Biotinylated cells were added to wells containing cell monolayers or purified protein substrates. Non-adherent cells were then removed by floatation on a dense Percoll solution. The adherent ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00187-6
更新日期：1995-12-01 00:00:00
abstract：:The reactivity of monoclonal antibodies (Mabs) raised against a cyclic peptide representing a chimeric V3 loop of HIV-1 gp120 with different peptide analogues was studied with a biosensor system (BIAcore) and by ELISA. In both assays, the Mabs cross-reacted extensively with the V3 regions of different HIV-1 strains an...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90316-6
更新日期：1994-12-02 00:00:00
abstract：:Using the advantages of phenol red, a signal enhancer, and bovine serum albumin (BSA), a stabilizer of horseradish peroxidase (HRP), added in HRP enzyme reaction of Amplex Red and H2O2, highly sensitive 1,1'-oxalyldiimidazole chemiluminescence enzyme immunoassay (ODI-CLEIA) was developed to rapidly quantify trace leve...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2019.05.003
更新日期：2019-08-01 00:00:00
abstract：:An immunomagnetic technique to detect and identify Salmonella serogroup C1 has been developed. Monoclonal antibodies (MAbs) specific for the O antigen 6,7 of Salmonella lipopolysaccharide (LPS) coupled to magnetic beads were used to isolate the salmonellae. Captured bacteria were easily identified by acridine orange s...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90387-u
更新日期：1991-03-01 00:00:00
abstract：BACKGROUND:High concentrations of propidium iodide (PI), in combination with fluorescein isothiocyanate (FITC) and R-phycoerythrin (RPE) used for multiparameter DNA flow cytometry (FCM), cause spectral cross-talk into the green fluorescence channel (FL1). We have evaluated the use of post-acquisition software compensat...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00550-6
更新日期：2002-02-01 00:00:00
abstract：:The human serine proteases granzymes A and B are expressed in cytoplasmic granules of activated cytotoxic T lymphocytes and natural killer cells. Recombinant granzyme A and granzyme B proteins were produced in bacteria, purified and then used to raise specific mouse monoclonal antibodies. Seven monoclonal antibodies (...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90241-x
更新日期：1993-07-06 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：:Direct reverse transcriptase in situ polymerase chain reaction (RT-in situ PCR) of selected mRNA expression in rat mast cells (MC) and alveolar macrophages (AM) was optimized. Rat peritoneal mast cells (PMC), rat cultured mast cells (RCMC), rat bronchoalveolar lavage cells (BALC) or rat cultured alveolar macrophages (...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00061-7
更新日期：1999-06-24 00:00:00
abstract：:In developing countries the acquisition and use of radioisotopes with their short shelf lives poses enormous problems. The objective of this study was to develop a simple, sensitive, non-isotopic method for the measurement of TSH in human serum. A conventional sandwich enzyme-linked immunosorbent assay (ELISA) techniq...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90315-8
更新日期：1988-11-25 00:00:00
abstract：:In studies of the relation between structure and function of proteins of the immune system, there is a continuous need for screening of a large number of protein variants. To optimise the yield following transient gene expression in small or medium culture volumes, several parameters were investigated. First, secretio...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2005.01.002
更新日期：2005-03-01 00:00:00
abstract：:A simple immunoenzyme technique is described in which the enzyme beta-galactosidase of E. coli (Z) is used as a marker. The principle of the test is based on the ability of the cells to bind the antigen. Conditions of the assay using Z both as the antigen and marker are described. As a screening technique, conditions ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(80)90268-9
更新日期：1980-01-01 00:00:00
abstract：:The aim of the present study was to analyze the relations between the serum anti-erythropoietin antibody (AEAb) levels and the antibodies' neutralizing activity in 20 patients with renal anemia and rhEPO-induced antibodies. AEAb levels were determined by the enzyme-linked immunosorbent assay (ELISA, double antigen-bri...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.04.009
更新日期：2008-07-31 00:00:00
abstract：:A method is described for the study of lymphokine-mediated cellular interactions using triple wells, which permits co-culture of cell subpopulations without direct physical contact. The triple wells are constructed by slitting the walls to half height between three adjacent wells of a 96-well microtiter plate. The cel...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90279-8
更新日期：1994-07-12 00:00:00
abstract：:We performed nasal lavage (NAL) combined with induced sputum to determine exudative inflammation in the upper and lower airways in patients with chronic sinusitis and in controls. To monitor plasma exudation into the respiratory lumen and loss of size-selectivity of the mucosa, we determined the sample-to-serum ratio ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00439-2
更新日期：2001-10-01 00:00:00
abstract：:The majority of vaccines and several treatments are administered by intramuscular injection. The aim is to engage and activate immune cells, although they are rare in normal skeletal muscle. The phenotype and function of resident as well as infiltrating immune cells in the muscle after injection are largely unknown. W...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.06.011
更新日期：2015-10-01 00:00:00
abstract：:An enzyme linked immunosorbent assay (ELISA) method for the detection of antibodies to platelets and leucocytes is presented. The method can be used for large numbers of samples. The method is objective when photometers are used. Approximately 50% of all cases of possible autoimmune thrombocytopenic purpura (A.T.P.) a...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90116-2
更新日期：1981-01-01 00:00:00
abstract：:As interest in the development of oral vaccines continues to rise, alternative animal models for studies of mucosal immunity are needed. The present study examines a simplified procedure for delivering antigen to rabbit Peyer's patches via an indwelling cannula. The cannula was placed 3-4 cm proximal to the Peyer's pa...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(96)00055-5
更新日期：1996-07-17 00:00:00
abstract：:Dendritic Cell (DC)-based vaccination approaches in man require a reproducible DC generation method that can be performed in conformity with GMP (Good Manufacturing Practice) guidelines and that circumvents the need for multiple blood drawings to generate DC. To this end we modified our previously described method to ...
journal_title：Journal of immunological methods
pub_type： 杂志文章,评审
doi：10.1016/s0022-1759(98)00208-7
更新日期：1999-02-01 00:00:00
abstract：:This study was designed to assess the use of flow cytometry to observe the binding, under physiological conditions, of anti-lipopolysaccharide (LPS) monoclonal antibodies (mAbs) to whole bacteria, and to compare this with the more conventional whole cell ELISA and immunoblotting techniques. The bacteria consisted of t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90363-z
更新日期：1990-10-19 00:00:00
abstract：:This paper describes the construction and application of a low-cost roller bottle-like culture appliance in which hybridoma cells can be cultivated in high density in dialysis tubing. The appliance facilitates the simultaneous culture of up to four cell lines yielding 50 ml culture volume of each. Samples for follow-u...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90345-8
更新日期：1993-10-15 00:00:00
abstract：:alpha-2-macroglobulin (alpha-2-M), a plasma proteinase inhibitor, plays an important role in the pathogenesis of lung inflammation. The purpose of this study was to develop a sensitive ELISA assay for rabbit alpha-2-M to allow us to define the role of this protein in a rabbit model of lung inflammation/injury. Therefo...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(02)00278-8
更新日期：2002-12-15 00:00:00
abstract：:Progress in elucidating the pathogenesis of Helicobacter pylori gastric infection and in developing an H. pylori vaccine will be aided by an animal model in which H. pylori can be reliably detected. To validate the use of the mouse model of H. pylori infection, we determined the susceptibility of three inbred strains ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(00)00215-5
更新日期：2000-08-28 00:00:00
abstract：:Application of antibody phage display to the identification of cell surface antigens with restricted expression patterns is often complicated by the inability to demonstrate specific binding to a certain cell type. The specificity of an antibody can only be properly assessed when the antibody is of sufficient high aff...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2005.04.016
更新日期：2005-07-01 00:00:00
