Abstract：
:The existing methods for phagocytosis evaluation are inadequate for assessing all the real events occurring during phagocytosis, or for continuously following the kinetics of the process. Our purpose is to establish the use of luminous bacteria as an object for phagocytosis. The bioluminescence test offers an easy and simple method to determine the kinetics of phagocytosis by following the luminescence of the bacteria. The terrestrial luminous bacteria Vibrio cholerae var. albensis are readily phagocytosed by polymorphonuclear (PMN) cells. The correlation coefficient between the decrease in luminescence and the decrease in viable count is 0.999. The rate of decrease in luminescence and the residual level of luminescence after 60 min of phagocytosis are proportional to the rate of increase in phagocytosis induced chemiluminescence, and to its maximal level, respectively. Opsonization requirements are comparable in both tests. Different inhibitors of the phagocytosis process caused similar changes in the rates of the bio- and chemiluminescence (correlation coefficient 0.974), and in the luminescence maximal level (correlation coefficient 0.804). The validity of the bioluminescence assay being proved, it is suggested as an alternative assay for phagocytosis assessment.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Barak M,Ulitzur S,Merzbach Ddoi
10.1016/0022-1759(83)90443-xsubject
Has Abstractpub_date
1983-11-25 00:00:00pages
353-63issue
3eissn
0022-1759issn
1872-7905pii
0022-1759(83)90443-Xjournal_volume
64pub_type
杂志文章abstract：:Near-infrared Raman spectroscopy may provide a highly sensitive, noninvasive means to identify activation status of leukocytes. The purpose of the current study was to establish Raman spectroscopic characteristics of T cell activation. Activation of the RsL.11 T cell clone in vitro with Con A resulted in specific decr...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2004.11.020
更新日期：2005-02-01 00:00:00
abstract：:A competitive enzyme immunoassay for rat prolactin using an immunogen and a tracer obtained by recombinant DNA technology is described. Polyclonal antibodies were raised in rabbits immunized with a purified chimeric protein consisting of rat prolactin fused with two synthetic immunoglobulin G binding domains derived f...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90264-x
更新日期：1994-03-10 00:00:00
abstract：:Neutrophil accumulation at an inflammatory site or an infected tissue is dependent on the recognition of chemotactic peptides that bind to G-protein coupled receptors (GPCRs) exposed on the surface of the inflammatory cells. A GPCR activated by a chemoattractant quickly becomes refractory to further stimulation by lig...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2009.10.011
更新日期：2010-01-31 00:00:00
abstract：:Wnt5a is a noncanonical member of the Wnt family of signaling molecules that has been linked to various physiological and pathological processes including cell differentiation, cell migration, cell growth, vascular remodeling, cancer and chronic inflammation. To understand the role of Wnt5a in these processes, it is n...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2009.11.005
更新日期：2010-01-31 00:00:00
abstract：:Human phospholipase B-precursor (PLB-P) is a newly identified and purified protein from human neutrophils. The precise function of PLB-P in vivo is not yet known. Its existence in neutrophils and the enzymatic activity against phospholipids imply a role in the defence against invading microorganisms and in the generat...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2010.01.005
更新日期：2010-02-28 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：BACKGROUND:Accumulating evidence intensively advises circulating endothelial progenitor cells (EPCs) and monocyte subsets as surrogate cellular biomarkers in cardiovascular and cancer disease. However, a general standard on their quantification is still elusive, thus precluding a routine monitoring and comparative inte...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2012.04.003
更新日期：2012-07-31 00:00:00
abstract：:We describe a method for standardizing cytotoxicity assays by the use of cryopreserved, fluorescently labeled target cells. The cells are labeled in batches with the fluorogenic element europium (Eu) and frozen in multiple aliquots. Replicate aliquots can be thawed on different days and used for cytotoxicity assays. T...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90112-9
更新日期：1990-11-06 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：:A method of tanned erythrocyte agglutination of wide applicability is described for the study of DNA antibodies. The practical aspects of the method have been explored in estimation of antibodies to DNA in human cases of systemic lupus erythematosus, discoid lupus erythematosus, rheumatoid arthritis, other collagenose...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(78)90067-4
更新日期：1978-01-01 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：:Rises in antineutrophil cytoplasmic antibodies (ANCA) directed against proteinase 3 (PR3) have predictive potential for a relapse of Wegener's granulomatosis (WG). To assess the value of image analysis for monitoring ANCA levels, we measured PR3-ANCA in a cohort of PR3-ANCA positive patients with WG that were prospect...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(02)00273-9
更新日期：2003-03-01 00:00:00
abstract：:A cell membrane permeabilizing treatment is described which involves the use of lysolecithin at low concentration in acidic acetate buffer and paraformaldehyde fixation. It preserved well-separated scatter cytograms of small and large lymphocytes. The accuracy of the immunochemical detection of internal antigens by fl...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90162-9
更新日期：1991-04-25 00:00:00
abstract：:A sensitive direct assay has been developed to quantitate antigen specific helper factors (ThF). The assay depends on the ability of ThF to block the binding of free antibody to immobilized antigen. It has been used to follow the course of purification of ThF produced in short-term cultures of in vitro primed helper c...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90098-x
更新日期：1984-02-24 00:00:00
abstract：:We describe a raft technique for the study of chemotaxis which possesses a number of advantages over the use of chambers. Membranes are laid on pads soaked in chemotactic agent and cells are contained in plastic cups, which are inverted on to the membrane. This method gives results which are similar to those obtained ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90033-8
更新日期：1976-01-01 00:00:00
abstract：:An enzyme-linked immunosorbent assay (ELISA) was developed for screening production of monoclonal antibodies with specificity for HBsAg. Mouse hybridoma IgG were firstly extracted from assay medium with goat anti-mouse IgG adsorbed on polystyrene beads. The specific antibody was revealed by saturation with HBs antigen...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(82)90361-1
更新日期：1982-01-01 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：:The cholesterol-rich lipid rafts on T cell membrane play important role in the formation of T cell receptor (TCR) signalosome upon receptor ligation. Analytical studies on the kinetics of lipid rafts formation and recruitment of protein receptors to lipid rafts are still limited by the use of a large number of cells. ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(03)00014-0
更新日期：2003-04-01 00:00:00
abstract：:A fluorimetric method using 4-methylumbelliferyl heptanoate (MUH) has been developed for detecting cell-mediated cytotoxicity and cell proliferation. The assay is based on the hydrolysis of the fluorochrome (MUH) by intracellular esterases of viable cells resulting in the production of highly fluorescent 4-methylumbel...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00115-q
更新日期：1995-09-25 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：:Utilization of compounds that enhance the innate immune response against Mycobacterium tuberculosis is an attractive strategy for combating tuberculosis in the post-antibiotic era. Thus, it is crucial to develop methods that can be used to screen for such compounds and to investigate their mechanisms of action. Here, ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.10.003
更新日期：2015-12-01 00:00:00
abstract：:Somatic cell hybridization between the YACUT T cell lymphoma cell line with normal lymphocytes activated in secondary mixed lymphocyte cultures (MLCs) consistently yielded IL-2-dependent CD4- CD8 alpha+ beta- Fc gamma RIII+ hybrids with cytotoxic function. The hybrids expressed T cell receptors other than that of YACU...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(96)00030-0
更新日期：1996-06-10 00:00:00
abstract：:Many antigens are shared between different types of human leukocytes. In an effort to obtain new lineage-specific monoclonal antibodies, particularly antibodies to dendritic cells, we attempted to tolerize newborn mice to one type of leukocyte and then immunize the adults with another. We found that T cells, either un...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)00335-t
更新日期：1995-04-12 00:00:00
abstract：:Cow's milk protein allergy (CMPA) is one of the most prevalent human food-borne allergies, particularly in children. Experimental animal models have become critical tools with which to perform research on new therapeutic approaches and on the molecular mechanisms involved. However, oral food allergen sensitization in ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2012.04.007
更新日期：2012-07-31 00:00:00
abstract：:A method to purify cobra venom factor (CVF) from cobra venom by sequential column chromatography is described which yields a product virtually free of phospholipase A2, a common contaminant of CVF preparations. The separation of phospholipase A2 from CVF was achieved by chromatography on Cibacron blue-agarose, a resin...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90045-0
更新日期：1984-10-12 00:00:00
abstract：:IgM antibodies are often of low affinity (dissociation constant (Kd) > 10(-5) M) and therefore they are usually neglected as tools in, e.g., immunoassays. Previous studies have shown that low affinity biological interactions can be studied and exploited in affinity chromatography, biosensor technology and capillary el...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00039-8
更新日期：1998-05-01 00:00:00
abstract：:An easy rapid method for layering mammalian blood on Ficoll-Isopaque gradients is described. ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(75)90036-8
更新日期：1975-11-01 00:00:00
abstract：:Four alleles are currently recognised at the HLA-DRB3 locus (DRB3*0101, DRB3*0201, DRB3*0202 and DRB3*0301). We studied whether 271 bp fragments of the polymorphic second exon, which were prepared using the polymerase chain reaction, could be typed using temperature gradient gel electrophoresis. Thermal stability curv...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90063-9
更新日期：1994-02-10 00:00:00
abstract：:Natural Killer cells are cells of the innate immune system that are important for the recognition and clearance of virally infected cells or tumors. Examination of the development and signaling of these cells has been severely hampered due to an inability to over-express proteins in these cells. We developed a novel t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.10.014
更新日期：2009-01-30 00:00:00
abstract：:A rapid, direct method for the purification of sheep red cell rosetting lymphocytes (ERFC) was developed. The whole procedure, including rosette formation, density separation and hemolysis could be completed within 10 min. A mixture of human peripheral blood mononuclear cells (PBMC) and 2-aminoethylisothiouronium brom...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90217-7
更新日期：1988-03-16 00:00:00
