Abstract：
:A novel bioanalysis system based on immunochromatography was developed in connection with a nitrocellulose resin modified micropipette tip, such as ZipTip. The sandwich-type immunoassay was applied to our bioanalysis system. The simple handling of the micropipette enabled us to increase the sample volume and detect low concentrations of target antigens in urine samples. In addition, the washing procedure could also be performed easily to reduce the background signal levels. For analytical evaluations, the color intensity was captured by a flatbed scanner, and processed by a software. We have achieved the detection of human chorionic gonadotropin (hCG) and prostate-specific antigen (PSA). The detection limit of hCG was 0.5 ng/ml (0.05 ng/tip), which is comparable to that of other conventional immunochromatographic systems. Moreover, the detection of PSA was greatly improved over the existing systems with the application of different sample volumes, such as 1 ng/ml (0.2 ng/tip) in a 200 microl sample volume, and 1 ng/ml (0.3 ng/tip) in 300 microl sample volume. Our bioanalysis system is a promising candidate for application to point-of-care tests with its simple handling and high sensitivity.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Yuhi T,Nagatani N,Endo T,Kerman K,Takata M,Konaka H,Namiki M,Takamura Y,Tamiya Edoi
10.1016/j.jim.2006.02.011subject
Has Abstractpub_date
2006-05-30 00:00:00pages
54-60issue
1-2eissn
0022-1759issn
1872-7905pii
S0022-1759(06)00068-8journal_volume
312pub_type
杂志文章abstract：:A method is described to quantitate complement fragment C4ai in human plasma, synovial fluid, and urine. Samples are first precipitated with 50% saturated (NH4)2SO4 to remove cross-reactive macromolecules C4 and pro-C4. Whereas greater than 97% of C4 is removed by this precipitation step, 88% of C4ai remains in soluti...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90257-x
更新日期：1981-01-01 00:00:00
abstract：:Cytokines and chemokines are soluble mediators of the immune system that play a crucial role in intercellular signaling, and in the recruitment of cells to inflammation sites. Identification of these molecules in nonhuman primates (NHP) is crucial for the understanding of complex physiological and pathological mechani...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2005.03.015
更新日期：2005-06-01 00:00:00
abstract：:Elucidation of local immune response at the cervix is important for understanding and evaluating STD vaccine approaches currently being proposed. However, no well-validated method exists for the collection of cervical secretions for evaluation of cervical immune response. The purpose of this study was to determine the...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00037-x
更新日期：1999-05-27 00:00:00
abstract：:Investigation of MHC class I endogenous antigen processing and presentation is important for understanding non-self immune recognition, vaccine design, immune evasion by pathogens and tumours, and elucidation of the mechanisms of certain auto-immune diseases. To study the MHC class I antigen-processing pathway, the pr...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.02.017
更新日期：2008-06-01 00:00:00
abstract：:In the process of metastasis, malignant cells are released from the primary tumor and migrate to specific organs via the lymphatic and blood circulation systems. These circulating tumor cells have been characterized by immunochemistry, the reverse transcription-polymerase chain reaction, and flow cytometry. Using the ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2005.02.007
更新日期：2005-04-01 00:00:00
abstract：:Both the active ester and maleimide moieties of the cross-linking reagent, N-[(gamma-maleimidobutyryl)oxy]succinimide (GMBS), were found to react with the primary amino groups on ribonuclease (RNase). This largely inactivated RNase towards a polymeric (but not monomeric) substrate. Citraconylating the RNase first, so ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90235-n
更新日期：1990-07-20 00:00:00
abstract：:Genetic mapping of differentiation specific surface antigens has been hampered by difficulty in preparation of interspecies hybrid cells which continue to express differentiated functions. A method has been developed for production of interspecies T cell hybrids which continue to express T cell specific cell surface m...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90108-4
更新日期：1983-08-12 00:00:00
abstract：:We have developed an enzyme-linked immunosorbent assay (ELISA) for the quantitation of C4 nephritic factor (C4NeF). Incubation of the C4NeF-positive serum from patient M.I. with normal human serum (NHS) in the presence of human aggregated IgG (AHG) resulted in the formation of stable C4-C2 complex. No complex was form...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90468-b
更新日期：1990-03-27 00:00:00
abstract：:This paper describes procedures for the detection and selection of bacterial colonies expressing antibody fragments of desired antigen specificity. Fab and Fv fragments are detected in a filter assay in which bacterial colonies are grown on a master filter in contract with a second, antigen-coated filter. Ab fragments...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90189-m
更新日期：1991-06-03 00:00:00
abstract：:The use of colloidal gold and colloidal gold followed by silver enhancement as marker for dot or blot immune overlays is described. Colloidal gold probes concentrating at the sites of immune reaction gradually develop a pinkish colour during incubation that can be seen with the naked eye. With a physical developer, ve...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90303-x
更新日期：1984-11-30 00:00:00
abstract：:C3 nephritic factor (C3NeF) is an autoantibody against the C3 convertase which stabilizes this otherwise inherently labile neoenzyme and induces a continuous activation of the alternative pathway with C3 depletion. NeF is found in patients with membranoproliferative glomerulonephritis and/or partial lipodystrpohy. NeF...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00295-2
更新日期：2001-05-01 00:00:00
abstract：:Myelomas and hybridomas were observed to proliferate normally when trapped in a fibrin clot. The fibrin clot was obtained by including fibrinogen in the cell culture medium and thrombin in the plastic dish. A clot formed within seconds and cloning efficiency was around 100%. This technique has all the advantages of se...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90176-7
更新日期：1988-11-10 00:00:00
abstract：:Non-biological synthetic oligomers can serve as ligands for antibodies. We hypothesized that a random combinatorial library of synthetic poly-N-substituted glycine oligomers, or peptoids, could represent a random "shape library" in antigen space, and that some of these peptoids would be recognized by the antigen-bindi...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2016.05.001
更新日期：2016-08-01 00:00:00
abstract：:The Raji cell assay for circulating immune complexes (CIC) is frequently the method of choice when the detection of large, complement fixing complexes is desired. We have developed an enzyme-linked immunosorbent assay modification (Raji-ELISA) of the Raji cell technique which is easy to perform, uses commercially avai...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90046-7
更新日期：1983-01-01 00:00:00
abstract：:A micro-assay has been developed for the separate evaluation of phagocytosis and intracellular killing of Staphylococcus aureus by human monocytes and granulocytes. The minimal number of phagocytes required for the investigation of these functional activities of phagocytic cells has been established by performing phag...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90095-9
更新日期：1983-02-25 00:00:00
abstract：:A monoclonal antibody to human IgG was tested with myeloma proteins of the four IgG subclasses. When tested by immunofluorometric assay, enzyme-linked immunosorbent assay, hemagglutination and hemagglutination inhibition assays, the antibody reacted with IgG3 but not with the other three IgG subclasses. When tested by...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(87)90317-6
更新日期：1987-02-11 00:00:00
abstract：:Feasibility, amount of sample aliquots, processing time and cost are critical considerations for optimizing and conducting assays for large-population based studies. Well designed statistical approaches that quickly identify optimal conditions for a given assay could assist efficient completion of the laboratory assay...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.11.001
更新日期：2009-02-28 00:00:00
abstract：:Enzyme-linked immunoadsorbent assay (EIA) has widespread use for the measurement of antibody concentration. The affinity constant (Kaff) of the antibody has an effect upon the quantification by EIA. It is thus important to be able to measure Kaff by solid-phase EIA. Based upon the Law of Mass Action and using serial d...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(87)90187-6
更新日期：1987-06-26 00:00:00
abstract：:Biological matrix interference in detection and quantitation immunoassays remains a major challenge in the field of bioanalysis. For example, circulating drug may interfere with the detection of anti-drug antibodies (ADA) and drug target, or ADA may interfere with quantitation of drug levels in PK/TK analysis. Monoclo...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.08.002
更新日期：2015-11-01 00:00:00
abstract：:Interleukin 2 (IL-2) is a class of T cell growth factors produced by T cells of a number of species. The unique growth-promoting properties of these molecules allow the development of antigen-specific effector T cell lines which can be used to analyze the molecular basis of lymphocyte interactions. A murine T cell tum...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(80)90055-1
更新日期：1980-01-01 00:00:00
abstract：:A simple method is described for the preparation of vimentin-type intermediate filaments for solid-phase immunoassays. Bovine aortic endothelial cells were grown to confluency in multiwells, and extracted with Triton X-100 and a high-salt buffer. Residual protein in the wells consisted of 53% vimentin as judged by SDS...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90149-8
更新日期：1985-12-27 00:00:00
abstract：:NIP-conjugated Fab' fragments from a rabbit hyperimmunized with sheep red blood cells (SRBC) were used to link the hapten NIP to target cells for antibody-dependent cell-mediated cytotoxicity (ADCC) and antibody-dependent complement-mediated lysis (ADCML). Target cells (SRBC) labelled with this NIP-Fab' complex were c...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90005-z
更新日期：1991-02-15 00:00:00
abstract：:The present study describes the immunomagnetic isolation of human natural killer (NK) and lymphokine activated killer (LAK) cells. Antibodies against CD56 and sheep anti-mouse IgG-coated magnetic monodisperse particles (Dynabeads M-450) were used for the positive isolation of CD56+ cells from unstimulated mononuclear ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90242-8
更新日期：1991-01-24 00:00:00
abstract：:Studies in vitro of human macrophage function in health and disease have been impeded by the difficulty of obtaining such cells in sufficient number. Unlike animal species, the only readily available source of human macrophages are circulating monocytes. Herein, a method is described whereby the phagocytic rate of sma...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90172-1
更新日期：1976-03-01 00:00:00
abstract：:The diagnostic and therapeutic applications of antibody single-chain Fv (sFv) fragments often require large amounts of protein that can be problematic and expensive to obtain. Here we report the secretion of two sFv fragments by the yeast Pichia pastoris at levels up to 250 mg/l. Soluble sFv fragments were purified fr...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(96)00213-x
更新日期：1997-02-14 00:00:00
abstract：:In general, antigen affinity columns made with commercially prepared activated affinity supports bind antibody specific for the coupled antigen. Nonetheless, in some cases affinity purification may yield antibodies to molecules other than the molecule of interest. In this report, we demonstrate such an occurrence: an ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90246-c
更新日期：1991-01-24 00:00:00
abstract：:Visceral leishmaniasis, which is also known as Kala-Azar, is one of the most severely neglected tropical diseases recognized by the World Health Organization (WHO). The threat of this debilitating disease continues due to unavailability of promising drug therapy or human vaccine. An extensive research is undergoing to...
journal_title：Journal of immunological methods
pub_type： 杂志文章,评审
doi：10.1016/j.jim.2015.03.017
更新日期：2015-07-01 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：:Anti-drug neutralizing antibodies (NAbs) formed due to unwanted immunogenicity of a therapeutic protein point towards a mature immune response. NAb detection is important in interpreting the therapeutic's efficacy and safety in vivo. In vitro cell-based NAb assays provide a physiological system for NAb detection, howe...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2015.02.006
更新日期：2015-04-01 00:00:00
abstract：:A 24 h, highly sensitive assay for detection of interleukin 1 (IL-1) is described. A thioguanine-resistant mutant of the murine lymphoma cell line LBRM 33 was selected (LBRM TG6). When this cell line was incubated with low concentrations of PHA and IL-1 it produced interleukin 2 (IL-2). IL-2-dependent HT2 cells were c...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(85)90389-8
更新日期：1985-05-10 00:00:00
