Abstract:
:Sulforhodamine B (SRB) protein staining has been widely used for cell proliferation and chemosensitivity testing, substituting for tetrazolium-based assays. However, the cell fixation step in the original assay is subject to error. We tested whether aspiration of medium with an automatic microplate multiwash device prior to fixation improves the method for adherent cells. A panel of adherent cell lines was used. Signal-to-noise ratios were significantly increased in the new assay. Coefficients of variation (CV) between replicate wells were significantly lower especially at lower cell densities. The linearity of the method improved, with absolute linearity over the whole range of cell densities. The aspiration procedure dislodged only negligible numbers of cells. Cytotoxicity testing using the cytotoxic agent paclitaxel showed no IC50 (50% inhibitory concentration) differences between the new and original methods but a better CV was associated with the optimized protocol. We conclude that aspiration of the growth medium prior to fixing comprises a safe and reliable practice which improves CV, linearity and the signal-to-noise ratio of the SRB assay.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Papazisis KT,Geromichalos GD,Dimitriadis KA,Kortsaris AHdoi
10.1016/s0022-1759(97)00137-3subject
Has Abstractpub_date
1997-10-27 00:00:00pages
151-8issue
2eissn
0022-1759issn
1872-7905pii
S0022-1759(97)00137-3journal_volume
208pub_type
杂志文章abstract::The usefulness of cryopreserved sheep erythrocytes (unsensitized or coated with fluorescein, IgG-type antibody or complement) for marker tests on human blood lymphocytes was studied. It appears that the rosetting properties or freshly prepared or frozen-stored erythrocytes are not significantly different. The method m...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(76)90118-6
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abstract::A simple and sensitive liposome immunoassay for gentamicin was developed using the cytolytic agent, phospholipase C, instead of complement. Liposomes entrapping a fluorescent marker, calcein, were prepared by the reverse-phase evaporation method from a mixture of dimyristoylphosphatidylcholine and cholesterol (molar r...
journal_title:Journal of immunological methods
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doi:10.1016/0022-1759(94)90397-2
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journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(82)90215-0
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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
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doi:10.1016/0022-1759(94)00321-m
更新日期:1995-03-27 00:00:00
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journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(85)90284-4
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abstract::A cell separation method using immunoglobulin (Ig)-coated plates, originally devised for murine spleen cells, was modified and adapted for enrichment (and depletion) of cellular subpopulations from human peripheral blood. For the direct separation of B and T cells, F(ab')2 fragments of anti-human Ig were used to coat ...
journal_title:Journal of immunological methods
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doi:10.1016/0022-1759(82)90176-4
更新日期:1982-09-30 00:00:00
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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
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journal_title:Journal of immunological methods
pub_type: 杂志文章
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journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(84)90109-1
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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::The T cell receptor (TCR) determines the cellular response to antigens, which are presented on the surface of target cells in the form of a peptide bound to a product of the major histocompatibility complex (pepMHC). The response of the T cell depends on the affinity of the TCR for the pepMHC, yet many TCRs have been ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2008.09.016
更新日期:2008-12-31 00:00:00
abstract::Use of fluorescently labelled multimers, particularly tetramers of peptide and MHC class I glycoprotein (pMHC-I) complexes, is essential for the analysis of CD8+ T cell immunity in basic research and clinical settings. A recently described combinatorial approach using pMHC-I multimers coupled to a unique combination o...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2010.06.003
更新日期:2010-08-31 00:00:00
abstract::We describe the setting up and validation of a reporter gene assay for type I IFN based on monkey Vero cells transfected with pMx-Luc, a plasmid carrying the luciferase gene under the control of the type I IFN inducible mouse Mx1 promoter. Vero cells were stably transfected with pMx-Luc and clone 3-143/5 was selected ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/s0022-1759(96)00168-8
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journal_title:Journal of immunological methods
pub_type: 杂志文章
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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
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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
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journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(84)90083-8
更新日期:1984-02-24 00:00:00
abstract::Lymphocyte subsets from human blood obtained by different procedures were analyzed for cytotoxic potential and phenotypic characteristics. Nylon wool column passed lymphocytes were fractionated on the basis of: (1) E and Fc gamma receptor expression, (2) cell density and Fc gamma receptor expression, (3) Fc gamma rece...
journal_title:Journal of immunological methods
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journal_title:Journal of immunological methods
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journal_title:Journal of immunological methods
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journal_title:Journal of immunological methods
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journal_title:Journal of immunological methods
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abstract::In vivo hypoxanthine-guanine phosphoribosyltransferase (HPRT)-deficient T cells (MT) from melanoma patients are enriched for T cells with in vivo clonal amplifications that traffic between blood and tumor tissues. Melanoma is thus a model cancer to test the hypothesis that in vivo MT from cancer patients can be used a...
journal_title:Journal of immunological methods
pub_type: 杂志文章
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abstract::Mouse models of allergic asthma are increasingly used to study the immunopathology of this complex disorder. The degree and type of airway inflammation is often studied by determination of differential cell counts on cytospins of bronchoalveolar lavage fluid (BALF) cells stained with May-Grünwald Giemsa, in which the ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2004.03.004
更新日期:2004-05-01 00:00:00
abstract::The epitope specificities of monoclonal antibodies against carcinoembryonic antigen (CEA) were determined in a solid-phase, biotin-avidin enzyme immunoassay. Constant amounts of biotin-labeled antibodies were incubated with the immobilized antigen in the presence of decreasing amounts of unlabeled antibodies. The biot...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(84)90157-1
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abstract::Two murine IgM monoclonal antibodies (MAs) directed against the lipid A portion of bacterial lipopolysaccharide (LPS) were compared in their binding to Re LPS and lipid A and their idiotypic make-up with rabbit anti-idiotypic sera. Horseradish peroxidase (HRPO)-labelled MAs 8-2 and 26-20 bound equally well to Re LPS. ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(90)90308-i
更新日期:1990-06-12 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
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abstract::A practical mixed hemadsorption assay (MHA) was developed for the detection of cell surface binding anti-tumor antigen antibodies (anti-TA Ab) in the human sera. The assay was compared to enzyme-linked immunosorbent assay (ELISA) and dot ELISA in the detection of the antibodies developed against GA733-2 antigen. SW111...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/s0022-1759(01)00560-9
更新日期:2002-03-01 00:00:00
abstract::An immunoaffinity method for the purification of hepatitis B surface antigen (HBsAg) using monoclonal anti-idiotype (anti-Id) as a specific eluent is described. Ammonium sulfate fractions of HBsAg-containing plasma were absorbed on monoclonal idiotype (Id) immunoadsorbents. The bound material was eluted from the colum...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(90)90019-r
更新日期:1990-01-24 00:00:00