Abstract：
:A competition immunoenzymometric assay for 2',5'-oligoadenylate was developed and employed to measure the interferon-inducible enzyme 2',5'-oligoadenylate synthetase in cell extracts. Microtiter plates coated with a novel conjugate of p5'A2'p5'A2'p5'A and N-(2-aminoethyl)-carbamylmethylated-Ficoll (AECM-Ficoll) bound rabbit polyclonal or mouse monoclonal antibody directed against 2',5'-oligoadenylate. Binding was inhibited by soluble 2',5'-oligoadenylate. Estimates of 2',5'-oligoadenylate concentrations based on inhibition of antibody binding compared favorably with those obtained using a protein synthesis inhibition assay. Low concentrations of 2',5'-oligoadenylate synthesized in vitro by extracts of human peripheral mononuclear cells were conveniently estimated using less than or equal to 10(6) cells. Virtually identical results were obtained when either total extract or synthetase bound to poly(I) . poly(C)-agarose was used for the in vitro incubation. When peripheral mononuclear cells were incubated in vitro with interferon, the normally low levels of 2',5'-oligo(A) synthetase rose dramatically. The assay was employed to measure synthetase levels in peripheral mononuclear cells isolated from patients with systemic lupus erythematosus. Some of these patients were found to have elevated levels of 2',5'-oligoadenylate synthetase.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Johnston MI,Preble OT,Imai J,Jacobsen H,Torrence PFdoi
10.1016/0022-1759(83)90309-5subject
Has Abstractpub_date
1983-12-16 00:00:00pages
123-35issue
1-2eissn
0022-1759issn
1872-7905pii
0022-1759(83)90309-5journal_volume
65pub_type
杂志文章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：:For microcytotoxicity, when numbers of effector or target cells are limited, the method of Takasugi and Klein (1970) is at present the most convenient way of assessing cytotoxicity. In this procedure, target cell survival is affected by minor variations in culture conditions or washing vigour and the variations may be...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90384-2
更新日期：1982-01-01 00:00:00
abstract：:Boronated antibodies have already been evaluated as agents in neutron capture therapy. Because the boronation procedure may alter the properties of the antibody it is important to study the immunoreactivity of the conjugated antibody before in vivo use. In our studies of two dextran-boronated monoclonal antibodies, an...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90016-o
更新日期：1990-01-24 00:00:00
abstract：:Pertussis toxin is known to elicit lymphocytosis in whooping cough patients and experimental animals, by blocking the extravasation of lymphocytes and stimulating their release from lymphoid organs such as the thymus. The mechanisms responsible for these unique effects of PT are not fully understood. The effect of per...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90090-3
更新日期：1991-11-22 00:00:00
abstract：:The techniques of flow cytometry are being increasingly used to classify lymphocytes according to their surface antigens. Accurate analyses depend on the exclusion of non-lymphocytic contaminant cells. Using a fluorescence-activated cell sorter (FACS IV), virtually complete separation of human lymphocytes from monocyt...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90389-7
更新日期：1983-11-11 00:00:00
abstract：:The identification and characterization of human mast cell (MC) functions are hindered by the shortage of MC populations suitable for investigation. Here, we present a novel technique for generating large numbers of well differentiated and functional human MCs from peripheral stem cells (=peripheral stem cell-derived ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2014.07.003
更新日期：2014-11-01 00:00:00
abstract：:An approach has been devised for analysing data generated in the study of in vivo cytotoxic T cell responses. The method calculates the total number of lytic units generated in the peritoneal cavity, or in cultures of the lymph nodes draining the rear footpad, following antigenic stimulation. The assessment of group d...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90387-3
更新日期：1983-11-11 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：:Chinese hamster lymphocyte cultures were supplemented with foetal calf serum (FCS) or hose serum (HS). Addition of 2-mercaptoethanol (2-ME) to cultures supplemented with these sera resulted in a marked increase lymphocyte proliferation. The PHA concentrations necessary for optimal lymphocyte stimulation were much lowe...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90299-x
更新日期：1982-01-01 00:00:00
abstract：:TNF antagonists such as infliximab are effective for the treatment of several inflammatory and autoimmune diseases. Recent clinical studies have advocated the importance of measuring trough infliximab levels to guide treatment decisions. We have developed a novel assay for measuring serum free infliximab levels using ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2019.04.008
更新日期：2019-07-01 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：:Thioglycollate medium (TGM) is widely used as a stimulatory agent to induce non-infectious peritoneal inflammation for elicitation of macrophages from mice and rats. It has been known for a long time that aged, autoclaved TGM is more efficient than freshly prepared TGM, however, the mechanism responsible for this enha...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(96)00224-4
更新日期：1997-02-28 00:00:00
abstract：:In analyses of antigen-specific immune responses, it is essential to estimate the frequency of individual T cell clonotypes. This frequency has been estimated, however, only indirectly by the frequency of T cell receptor (TCR) mRNA. We have developed a method to determine T cell frequency directly by cell count using ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00022-8
更新日期：1999-04-22 00:00:00
abstract：:The technique of high performance electrophoretic chromatography (HPEC) has been used to fractionate soluble antigens from adult Schistosoma mansoni worms on the basis of molecular weight (MW), prior to screening for their ability to stimulate T lymphocyte activity. Approximately 250 micrograms of protein were separat...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90183-8
更新日期：1993-04-02 00:00:00
abstract：:Wegener's granulomatosis (WG) is a systemic vasculitis which is diagnosed on clinicopathological findings. The diagnosis may be aided by the presence of anti-neutrophil cytoplasm antibodies (ANCA). In WG, ANCA are primarily directed to proteinase 3 (PR3), a serine protease of the azurophilic granules of the neutrophil...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90364-6
更新日期：1994-10-14 00:00:00
abstract：:Although many different protocols for transfection of lymphoid cell lines exist, successful DNA transfer into primary B lymphocytes has, to date, not been demonstrated. We now describe a simple method for gene transfer into highly purified normal and malignant B lymphocytes by electroporation. Using a powerful express...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90321-l
更新日期：1990-10-04 00:00:00
abstract：:The use of therapeutic antibodies, delivered by intravenous (IV) instillation, is a rapidly expanding area of biomedical treatment for a variety of conditions. However, little is known about how the antibodies are anatomically distributed following infusion and the underlying mechanism mediating therapeutic antibody d...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2017.07.009
更新日期：2017-11-01 00:00:00
abstract：:Macrophages can be separated from other cell types by their ability to readily attach and spread on glass or on plastic surfaces which are treated for optimal growth of cultured cells (tissue culture-treated plastic). To detach macrophages from these surfaces, techniques must be used which require prior preparation of...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90142-x
更新日期：1984-03-30 00:00:00
abstract：:There are several double immunolabelling methods but each has its drawbacks. More often than not, antibodies with the required specificities are available in only one species and their use normally produces false labels due to cross-reactivity. We describe a new and reliable technique for staining with primary antibod...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00281-2
更新日期：1996-04-19 00:00:00
abstract：:As much as one percent of antibodies in human plasma are reported to be specific for the non-human disaccharide structure αGal. Various microbes express αGal. However, the implications of anti-αGal antibodies for the anti-microbial defenses are poorly established. With the perspective of studying the biological import...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2011.07.017
更新日期：2011-10-28 00:00:00
abstract：:This paper shows how to obtain accuracy and efficiency in an ELISA analysis by allocating the wells on a 96-well microplate between calibration and determination of unknowns, and by choosing the known concentrations for calibration. The method also can determine how much is lost in precision by using a convenient but ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90036-u
更新日期：1990-09-14 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：:A method for quantitative RT-PCR using ELISA detection was developed and applied to the quantitation of IL-1 beta mRNA in clinical samples. To compensate for the 'tube effect' of RT-PCR, a synthetic RNA, pRSET RNA, was added to sample solutions as an internal standard and co-amplified with IL-1 beta mRNA. Sense primer...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)00321-m
更新日期：1995-03-27 00:00:00
abstract：:Dendritic cells (DC) are increasingly explored as cellular vaccines for tumor immunotherapy. In most reported DC-based cancer vaccine trials, DC have been pulsed with soluble tumor antigen-derived peptide ligands of MHC molecules. Considering that the half-life of peptide/MHC complexes on the cell surface is relativel...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2004.01.010
更新日期：2004-04-01 00:00:00
abstract：:A solid-phase radioimmunoassay for detection of herpes simplex virus-specific IgG and IgM antibodies in human serum specimens is presented. Virus antigen is adsorbed on polystyrene balls and antibodies which attach to the antigen are detected by 125I-labeled antihuman-gamma or antihuman-mu immunoglobulins. A total of ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(77)90008-4
更新日期：1977-01-01 00:00:00
abstract：:Rabbit immunoglobulin G (RIgG) was reduced with dithioerythritol and analyzed by high performance liquid chromatography. A quantitative method for determining the percentage of reduced half-molecules in the mixture was developed. An acetic acid concentration-dependent rate of dissociation of reduced half-molecules was...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(87)90314-0
更新日期：1987-02-11 00:00:00
abstract：:The lysis of susceptible targets by efficient cytotoxic T lymphocytes (CTL) increases both with time and with the ratio of CTL to target. Simple methods for calculating a killing rate constant from the time dependence of killing and for calculating the relation of the killing rate constant to the concentration of exoc...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(96)00009-9
更新日期：1996-06-10 00:00:00
abstract：OBJECTIVE:Interleukin-13 (IL-13) has been difficult to quantify within human serum due to low abundance. Available assays have not been sensitive enough to detect IL-13 at the femtogram level. Thus, there are inconsistencies within the published literature as to IL-13 concentrations in normal or disease populations. To...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.08.006
更新日期：2015-11-01 00:00:00
abstract：:We have developed a standardized procedure for the isolation of monocytes from peripheral blood by negative selection using magnetic polymer particles coated with monoclonal antibodies against T and B lymphocytes. The average purity of the monocyte suspension was 85%, and monocyte recovery was 72% from Ficoll-Hypaque ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90397-x
更新日期：1991-03-01 00:00:00
abstract：:We describe a simplified and improved proliferation assay based on a conventional ELISA system for the in vitro measurement of cellular proliferation (ELISA proliferation assay = EPA). The assay is based on a new monoclonal antibody (Ki-S3) to the proliferation-specific Ki-67-antigen and is carried out in 96-well micr...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(97)00175-0
更新日期：1998-02-01 00:00:00
