Abstract：
:We have evaluated two novel enzyme-linked immunosorbent assays (ELISAs) used to quantitate cyclic AMP. In one assay ELISA plates are coated with antigen consisting of a cyclic AMP-polylysine conjugate. Cyclic AMP samples added to plates are quantified by their ability to decrease the binding and anti-cyclic AMP antibodies to the coated antigen. A second ELISA utilizes a plated anti-immunoglobin technique in which plates are coated first with anti-goat IgG and then with goat anti-cyclic AMP antiserum. Cyclic AMP samples are quantified by their ability to compete with cyclic AMP-peroxidase conjugates for binding to the plated anti-cyclic AMP antibodies. The plated anti-immunoglobin ELISA proved to be somewhat more sensitive than the plated antigen ELISA and was comparable in sensitivity to an automated RIA for measuring cyclic AMP in standards and urine samples. Our data fit with the generalization that optimal ELISA sensitivity is obtained through the use of plated anti-immunoglobins rather than plated antigens. Further they demonstrate the practicality of utilizing small ligand-enzyme conjugates for ELISAs.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Linden J,Vandenhoff GE,Taylor D,Finkelstein GLdoi
10.1016/0022-1759(92)90119-ekeywords:
subject
Has Abstractpub_date
1992-07-06 00:00:00pages
209-16issue
1-2eissn
0022-1759issn
1872-7905pii
0022-1759(92)90119-Ejournal_volume
151pub_type
杂志文章abstract：:A method for the preservation of mouse peritoneal macrophages is described. Using 5% dimethylsulphoxide with either a cooling rate of 1 degree C/min or two-step cooling with 10 min interruption at -30 degrres C allows 80% survival as judged by pinocytic activity. An important finding was that the cells must be handled...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(77)90139-9
更新日期：1977-01-01 00:00:00
abstract：:A C1q solid phase microassay was designed for the rapid detection of circulating immune complexes. Its level of sensitivity is comparable to that of the Raji cell and greater than the C1q binding assay; furthermore, it is faster and low in cost. These conditions make it more practical and applicable in the clinical se...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90036-4
更新日期：1983-04-29 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：:The rise in the analytical speed of mutiparameter flow cytometers made possible by the introduction of digital instruments, has brought up the possibility to manage progressively higher number of parameters simultaneously on significantly greater numbers of individual cells. This has led to an exponential increase in ...
journal_title：Journal of immunological methods
pub_type： 杂志文章,评审
doi：10.1016/j.jim.2019.07.003
更新日期：2019-12-01 00:00:00
abstract：:In transplantation techniques previously described it was impossible to separate the effects of immunosuppressive treatments on the host from the effects directed at the allograft itself. The skin allograft retransplantation technique described here allows one to assess changes in the immunogenicity of the allograft g...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90005-x
更新日期：1984-09-04 00:00:00
abstract：:The proinflammatory cytokine IL-18 mediates IFN-gamma production as well as the induction of Th1 polarized immune responses in synergy with IL-12. In this study, we describe the production of isogeneic monoclonal antibodies (Mabs) directed against murine IL-18 (mIL-18). Immunization of IL-18-deficient mice with recomb...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00505-1
更新日期：2002-01-01 00:00:00
abstract：:Two methods for estimating IgA in body fluids of rats were devised and tested for their accuracy and reliability. Specifically purified monomeric and polymeric IgA was prepared so that results obtained could be properly assessed. The two systems tried were prepared so that results obtained could be properly assessed. ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(79)90293-x
更新日期：1979-01-01 00:00:00
abstract：:This paper describes the evaluation and optimisation of boric acid antigen retrieval (AR) in rat joint tissue immunohistochemistry (IHC), with reference to two sample IHC targets, CD31 (PECAM-1) and Proliferating Cell Nuclear Antigen (PCNA). Sections of buffered formalin-fixed arthritic tibial/talus joints, decalcifie...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2007.01.020
更新日期：2007-04-30 00:00:00
abstract：:Affinity chromatography and subsequent ion-exchange chromatography of pooled anti-benzylpenicilloyl (anti-BPO) hyperimmune sera separated 5 different anti-BPO IgG fractions as described in the preceding paper. These fractions were tested for activities in passive hemagglutination (PHA), passive immune hemolysis (PIH),...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90163-1
更新日期：1978-01-01 00:00:00
abstract：:We report a procedure for optimisation of Western blotting using protein G-horseradish peroxidase (protein G-HRP) which avoids the false positive reactions often caused by second antibodies and increases the detection of autoantibodies by protein G conjugate. A number of modifications were investigated. Higher concent...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(96)00235-9
更新日期：1997-03-28 00:00:00
abstract：:An antibody detection ELISA was developed for diagnosis of visceral leishmaniasis. Antigens released by Leishmania donovani promastigotes into a protein-free medium were used. SDS-PAGE analysis has indicated that Ld-ESM contain several protein antigens. Titration and chequer-board analyses were performed to optimise t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00341-6
更新日期：2001-06-01 00:00:00
abstract：:It is known that membranoproliferative glomerulonephritis (MPGN), hypocomplementaemia and C3 nephritic factor (C3NeF) are closely related to each other, and the presence or absence of C3NeF in the serum is important for evaluating the nature of MPGN. However, some difficulties have been encountered in detecting this f...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90234-m
更新日期：1990-07-20 00:00:00
abstract：:The circumsporozoite (CS) protein is the major surface protein of Plasmodium sporozoites. Antibodies to the immunodominant repeat domain of CS immobilize sporozoites and prevent infection of hepatocytes. Plasmodium falciparum vaccines containing CS repeats are undergoing human trials in endemic areas, and proof of eff...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2004.06.017
更新日期：2004-09-01 00:00:00
abstract：:To compare the responses of individual neutrophils to chemoattractants, migration pathway data were obtained using TAXIScan, an optically accessible/horizontal apparatus in which a concentration gradient is established reproducibly for a given stimulus. The observed linear-mode trajectory pattern of neutrophils toward...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2013.12.005
更新日期：2014-02-01 00:00:00
abstract：:Multiplex bead-based flow cytometry is an attractive way for simultaneous, rapid and cost-effective analysis of multiple analytes in a single sample. Previously, we developed various bead-based assays using non-magnetic beads coated with Staphylococcus aureus and Streptococcus pneumoniae antigens for the detection of ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2016.06.003
更新日期：2016-09-01 00:00:00
abstract：:The concentrations of major basic protein (MBP), eosinophil cationic protein (ECP), eosinophil derived neurotoxin (EDN) and eosinophil peroxidase (EPO) have been associated with eosinophilic disease severity. Whereas a variety of techniques have been used to measure individual eosinophil granule protein concentration,...
journal_title：Journal of immunological methods
pub_type： 临床试验,杂志文章
doi：10.1016/j.jim.2014.05.020
更新日期：2014-09-01 00:00:00
abstract：:A mild procedure for the purification of rabbit Fab' antibodies is described. A small column of normal goat IgG-Sepharose 4B (3 cm x 5mm) was saturated with F(ab')2 prepared from rabbit anti-goat IgG, and anti-goat IgG Fab was eluted from the column by splitting the disulfide bond in the hinge of the F(ab')2 molecule ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(80)90336-1
更新日期：1980-01-01 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：:Three different methods for the radioiodination of surface proteins in trypanosomatids have been comparatively analyzed. Data interpretation in the lactoperoxidase-mediated method was impaired by autoiodination of the enzyme and its tight retention by the cells. In the enzymobeads method, iodinated enzymes were releas...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90051-5
更新日期：1982-07-30 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：:The migration inhibition by soluble PPD of peripheral blood mononuclear cells showed a much better reflection of delayed hypersentitivity to tuberculin in man than the migration inhibition of buffy coat cells. The migration index (MI) with mononuclear cells in a group of tuberculin positive subjects was 0.51 +/- 0.14 ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90012-0
更新日期：1976-01-01 00:00:00
abstract：:Attempts to use the rapid single-step Ficoll-Hypaque centrifugation procedure for the purification of mononuclear and polymorphonuclear leucocytes from the blood of normal individuals and rheumatoid arthritis patients have sometimes been unsuccessful, largely because the erythrocytes would not sediment through the cen...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90416-2
更新日期：1984-10-26 00:00:00
abstract：:We have developed a modified microtiter plate which has following advantageous features and functions to both conventional microtiter plate and protein array, such as 1) use of conventional microtiter plate reader and washer, and 2) allowance of simultaneous reaction in the same liquid for all wells. Four proteins of ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2007.04.007
更新日期：2007-06-30 00:00:00
abstract：:Analytical affinity electrophoresis experiments are described as analogues of column and batch affinity experiments. The are based on crossed immunoelectrophoresis with included affinity, here concanavalian A (con A) and con A-Sepharose. Reactions with serum proteins and allergens from cow's hair and dander are descri...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90037-6
更新日期：1978-01-01 00:00:00
abstract：:An assay based on two-color flow cytometry has been developed to measure CTL and NK cell-mediated cytotoxicity. After effector/target cells are incubated together, CTL or NK populations are stained with an effector cell specific PE-conjugated mAb. Subsequently, annexin V-FITC binds to cells expressing phosphatidylseri...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00038-6
更新日期：1999-04-22 00:00:00
abstract：:The effect of various physical or chemical treatments of splenic stimulator cells on their endogenous, mitogen-inducible IL-2 production and on their ability to induce IL-2 production in clonally developing helper T lymphocytes was investigated. While most methods (T cell depletion by monoclonal antibodies plus comple...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90241-4
更新日期：1988-05-09 00:00:00
abstract：:Non-specific radioactive counts retained on the glass fiber filters from a multiple automatic sample harvester were reduced markedly by 3 simple changes in the procedure for harvesting thymidine-labeled whole blood cultured from microtiter plates. These modifications increased the sensitivity, precision and accuracy o...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90225-8
更新日期：1981-01-01 00:00:00
abstract：:A method is described for the purification of human and guinea pig C3 from small amounts of serum. This procedure requires only two steps--polyethylene glycol (PEG) precipitation and fast protein liquid chromatography (FPLC) Mono Q HR 10/10 ion exchange chromatography. The protocol takes less than two hours to complet...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90290-v
更新日期：1991-08-28 00:00:00
abstract：:Liposomes have been widely used as carriers of protein or peptide antigens. Antigenic materials can be attached to the outer surface, encapsulated within the internal aqueous spaces, or reconstituted within the lipid bilayers of the liposomes. The natural tendency of liposomes to interact with macrophages has served a...
journal_title：Journal of immunological methods
pub_type： 杂志文章,评审
doi：10.1016/0022-1759(91)90120-5
更新日期：1991-06-24 00:00:00
abstract：:AMPKalpha is a subunit of AMP-activated protein kinase (AMPK), a heterotrimeric enzyme that works as a fuel sensor activated in response to the depletion of cellular ATP. AMPKalpha is considered as a master switch in regulating glucose and lipid metabolism. Determining its presence in patient sera may help in diagnosi...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2009.10.001
更新日期：2009-12-31 00:00:00
