coat maxisorptm 96 well plates  (Thermo Fisher)


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    Structured Review

    Thermo Fisher coat maxisorptm 96 well plates
    Coat Maxisorptm 96 Well Plates, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/coat maxisorptm 96 well plates/product/Thermo Fisher
    Average 94 stars, based on 1 article reviews
    Price from $9.99 to $1999.99
    coat maxisorptm 96 well plates - by Bioz Stars, 2020-04
    94/100 stars

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    Enzyme-linked Immunosorbent Assay:

    Article Title: Human Norovirus Histo-Blood Group Antigen (HBGA) Binding Sites Mediate the Virus Specific Interactions with Lettuce Carbohydrates
    Article Snippet: Paragraph title: 2.4. Detection of HuNoV VLP Binding to CWM Using Enzyme-Linked Immunosorbent Assay (ELISA) ... Briefly, CWMs were resuspended in PBS (pH 7.4) at 5 mg/mL, vortexed for 2 min, centrifuged twice at 500× g for 2 min and the resulting supernatant was used to coat MaxiSorpTM 96-well plates (Thermo Fisher Scientific Inc., Rockford, IL, USA).

    Incubation:

    Article Title: Human Norovirus Histo-Blood Group Antigen (HBGA) Binding Sites Mediate the Virus Specific Interactions with Lettuce Carbohydrates
    Article Snippet: Briefly, CWMs were resuspended in PBS (pH 7.4) at 5 mg/mL, vortexed for 2 min, centrifuged twice at 500× g for 2 min and the resulting supernatant was used to coat MaxiSorpTM 96-well plates (Thermo Fisher Scientific Inc., Rockford, IL, USA). .. The plates were incubated at 4 °C for 18 h. Following three washes with PBS-T, blocking was performed with 200 µL of PBS supplemented with 2% nonfat dry milk (blocking buffer) for 1 h at 37 °C.

    Binding Assay:

    Article Title: Human Norovirus Histo-Blood Group Antigen (HBGA) Binding Sites Mediate the Virus Specific Interactions with Lettuce Carbohydrates
    Article Snippet: Paragraph title: 2.4. Detection of HuNoV VLP Binding to CWM Using Enzyme-Linked Immunosorbent Assay (ELISA) ... Briefly, CWMs were resuspended in PBS (pH 7.4) at 5 mg/mL, vortexed for 2 min, centrifuged twice at 500× g for 2 min and the resulting supernatant was used to coat MaxiSorpTM 96-well plates (Thermo Fisher Scientific Inc., Rockford, IL, USA).

    Blocking Assay:

    Article Title: Human Norovirus Histo-Blood Group Antigen (HBGA) Binding Sites Mediate the Virus Specific Interactions with Lettuce Carbohydrates
    Article Snippet: Briefly, CWMs were resuspended in PBS (pH 7.4) at 5 mg/mL, vortexed for 2 min, centrifuged twice at 500× g for 2 min and the resulting supernatant was used to coat MaxiSorpTM 96-well plates (Thermo Fisher Scientific Inc., Rockford, IL, USA). .. The plates were incubated at 4 °C for 18 h. Following three washes with PBS-T, blocking was performed with 200 µL of PBS supplemented with 2% nonfat dry milk (blocking buffer) for 1 h at 37 °C.

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  • 99
    Thermo Fisher nunc maxisorp flat bottom 96 well plates
    A standard curve with rHfIL-1β by dehydration coating method. To establish an ELISA system for HfIL-1β, first a standard curve was established with rHfIL-1β using the dehydration coating method. The purified rHfIL-1β was diluted with the coating buffer with the following final concentrations: 0, 3, 6, 9, 12, 15, 15, 18, 21, and 24 ng/mL. Fifty-microliter of serially diluted rHfIL-1β were added to each well of Nunc <t>MaxiSorp®</t> flat-bottom 96-well plate, followed by incubation at 60°C for 2 h. Then, the plate was sequentially incubated with anti-ChIL-1β pAb (1:1000) and goat anti-rabbit antibody (1: 2000). The HRP signal was developed with TMB solution for 30 min. The coating buffer itself was used as negative control. Values represent the mean of three independent experiments. Error bars represent standard error of the mean. The dashed line indicates the threshold line, representing the value of negative control and limitation of the developed ELISA system (OD450 = 0.038)
    Nunc Maxisorp Flat Bottom 96 Well Plates, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/nunc maxisorp flat bottom 96 well plates/product/Thermo Fisher
    Average 99 stars, based on 1 article reviews
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    84
    Thermo Fisher streptavidin coated 96 well maxisorp plates
    ), are shown. (B) Peptide A specificity of the MAbs in an ELISA. Biotin-conjugated peptide A was added to <t>streptavidin-coated</t> 96-well plates (200 ng/well). Each MAb (ascites fluid) was diluted 1:1,000 and used as the primary antibody. The y . An ELISA was performed with 1:20,000-diluted ascites fluid in the presence or absence of various concentrations of NaSCN as indicated. The specific binding affinity was calculated based on the values obtained with or without NaSCN. The data shown represent three independent experiments. Error bars represent the standard deviation.
    Streptavidin Coated 96 Well Maxisorp Plates, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 84/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Thermo Fisher elisa plates
    Description and characterization of the chimeric human <t>FasL-derived</t> constructs Panel A: Schematic representation of soluble FasL (sFasL), Flag-tagged sFasL (sfFasL), polymeric Flag-tagged soluble FasL (pfFasL), polymeric TCR γ4 and δ5 Flag-tagged soluble FasL generating the TCR-pfFasL upon cotransfection, and beta2-microglobulin-fused HLA-A*02: 01 Flag-tagged soluble FasL (HLA-pfFasL). The f and p symbols represent the flag epitope and the LIF receptor-derived domain triggering the polymerisation of the FasL oligomers, respectively. Panel B: direct immunoblot of the supernatants from COS cells transfected with the empty vector (control) or the FasL constructs sFasL, sfFasL and pfFasL. Panel C: immunoprecipitation of the TCR-pfFasL chimera from transfected HEK cells, using an irrelevant IgG1 antibody, the anti-Flag (clone M2), the anti-FasL (clone 10F2), the anti-TCRγδ (clone IMU-510) or the anti-TCRδ5 (clone 12C7) antibodies. Panel D: immunoprecipitation of the HLA-pfFasL chimera from the supernatant of COS cells, with anti-Flag, anti-FasL or anti-β2microglobulin antibodies. As controls, the same experiment was performed with irrelevant IgG1 and IgG2 antibodies. Panel E: cytotoxic effect of the FasL chimeras. The indicated chimeras, as supernatants from transfected cells and quantitated using the <t>ELISA</t> for FasL, were incubated at the indicated concentrations with Jurkat cells. After 18 h, the MTT cell viability assay was performed. The anti-Flag M2 antibody at 0.5 µg/ml was added to sfFasL to render it cytotoxic.
    Elisa Plates, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 430 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    A standard curve with rHfIL-1β by dehydration coating method. To establish an ELISA system for HfIL-1β, first a standard curve was established with rHfIL-1β using the dehydration coating method. The purified rHfIL-1β was diluted with the coating buffer with the following final concentrations: 0, 3, 6, 9, 12, 15, 15, 18, 21, and 24 ng/mL. Fifty-microliter of serially diluted rHfIL-1β were added to each well of Nunc MaxiSorp® flat-bottom 96-well plate, followed by incubation at 60°C for 2 h. Then, the plate was sequentially incubated with anti-ChIL-1β pAb (1:1000) and goat anti-rabbit antibody (1: 2000). The HRP signal was developed with TMB solution for 30 min. The coating buffer itself was used as negative control. Values represent the mean of three independent experiments. Error bars represent standard error of the mean. The dashed line indicates the threshold line, representing the value of negative control and limitation of the developed ELISA system (OD450 = 0.038)

    Journal: BMC Veterinary Research

    Article Title: Development and validation of a house finch interleukin-1β (HfIL-1β) ELISA system

    doi: 10.1186/s12917-017-1199-9

    Figure Lengend Snippet: A standard curve with rHfIL-1β by dehydration coating method. To establish an ELISA system for HfIL-1β, first a standard curve was established with rHfIL-1β using the dehydration coating method. The purified rHfIL-1β was diluted with the coating buffer with the following final concentrations: 0, 3, 6, 9, 12, 15, 15, 18, 21, and 24 ng/mL. Fifty-microliter of serially diluted rHfIL-1β were added to each well of Nunc MaxiSorp® flat-bottom 96-well plate, followed by incubation at 60°C for 2 h. Then, the plate was sequentially incubated with anti-ChIL-1β pAb (1:1000) and goat anti-rabbit antibody (1: 2000). The HRP signal was developed with TMB solution for 30 min. The coating buffer itself was used as negative control. Values represent the mean of three independent experiments. Error bars represent standard error of the mean. The dashed line indicates the threshold line, representing the value of negative control and limitation of the developed ELISA system (OD450 = 0.038)

    Article Snippet: Enzyme-linked Immunosorbent assay (ELISA) To develop the ELISA system for HfIL-1β, we adopted a direct ELISA approach using two different coating methods, carbonate and dehydration, on Nunc MaxiSorp® flat-bottom 96-well plates (Thermo Scientific, IL).

    Techniques: Enzyme-linked Immunosorbent Assay, Purification, Incubation, Negative Control

    ), are shown. (B) Peptide A specificity of the MAbs in an ELISA. Biotin-conjugated peptide A was added to streptavidin-coated 96-well plates (200 ng/well). Each MAb (ascites fluid) was diluted 1:1,000 and used as the primary antibody. The y . An ELISA was performed with 1:20,000-diluted ascites fluid in the presence or absence of various concentrations of NaSCN as indicated. The specific binding affinity was calculated based on the values obtained with or without NaSCN. The data shown represent three independent experiments. Error bars represent the standard deviation.

    Journal: Journal of Virology

    Article Title: Amino Acid Residue-Specific Neutralization and Nonneutralization of Hepatitis C Virus by Monoclonal Antibodies to the E2 Protein

    doi: 10.1128/JVI.00994-12

    Figure Lengend Snippet: ), are shown. (B) Peptide A specificity of the MAbs in an ELISA. Biotin-conjugated peptide A was added to streptavidin-coated 96-well plates (200 ng/well). Each MAb (ascites fluid) was diluted 1:1,000 and used as the primary antibody. The y . An ELISA was performed with 1:20,000-diluted ascites fluid in the presence or absence of various concentrations of NaSCN as indicated. The specific binding affinity was calculated based on the values obtained with or without NaSCN. The data shown represent three independent experiments. Error bars represent the standard deviation.

    Article Snippet: Biotin-conjugated peptide (200 ng/well) was added to streptavidin-coated 96-well Maxisorp plates (Thermo Fisher Scientific, Rockford, IL), followed by incubation at room temperature for 1 h in Super Block blocking buffer (Thermo Scientific).

    Techniques: Enzyme-linked Immunosorbent Assay, Binding Assay, Standard Deviation

    Use of mutational analysis to identify the residues that are critical for antibody recognition. (A) Biotin-conjugated peptides were chemically synthesized to represent the truncated peptide B, i.e., B short, from the E2 protein of HCV genotype 1a (H77 strain) and its mutations. The B short mutant peptides contained a single alanine substitution at positions 437, 438, 440, 441, and 442, respectively. A hyphen indicates an amino acid residue identical to that of the H77 sequence. (B) Biotin-conjugated B short peptide and its mutants were added to streptavidin-coated 96-well plates at 200 ng/well in an ELISA. Each MAb (ascites fluid) was diluted 1:10 5 dilution, and applied as the primary antibody. The data shown represent at least three independent experiments. The x axis indicates the antibodies used in the assay. The y axis indicates the absorbance at 405 nm, representing specific binding of a given antibody to each individual peptide.

    Journal: Journal of Virology

    Article Title: Amino Acid Residue-Specific Neutralization and Nonneutralization of Hepatitis C Virus by Monoclonal Antibodies to the E2 Protein

    doi: 10.1128/JVI.00994-12

    Figure Lengend Snippet: Use of mutational analysis to identify the residues that are critical for antibody recognition. (A) Biotin-conjugated peptides were chemically synthesized to represent the truncated peptide B, i.e., B short, from the E2 protein of HCV genotype 1a (H77 strain) and its mutations. The B short mutant peptides contained a single alanine substitution at positions 437, 438, 440, 441, and 442, respectively. A hyphen indicates an amino acid residue identical to that of the H77 sequence. (B) Biotin-conjugated B short peptide and its mutants were added to streptavidin-coated 96-well plates at 200 ng/well in an ELISA. Each MAb (ascites fluid) was diluted 1:10 5 dilution, and applied as the primary antibody. The data shown represent at least three independent experiments. The x axis indicates the antibodies used in the assay. The y axis indicates the absorbance at 405 nm, representing specific binding of a given antibody to each individual peptide.

    Article Snippet: Biotin-conjugated peptide (200 ng/well) was added to streptavidin-coated 96-well Maxisorp plates (Thermo Fisher Scientific, Rockford, IL), followed by incubation at room temperature for 1 h in Super Block blocking buffer (Thermo Scientific).

    Techniques: Synthesized, Mutagenesis, Sequencing, Enzyme-linked Immunosorbent Assay, Binding Assay

    Description and characterization of the chimeric human FasL-derived constructs Panel A: Schematic representation of soluble FasL (sFasL), Flag-tagged sFasL (sfFasL), polymeric Flag-tagged soluble FasL (pfFasL), polymeric TCR γ4 and δ5 Flag-tagged soluble FasL generating the TCR-pfFasL upon cotransfection, and beta2-microglobulin-fused HLA-A*02: 01 Flag-tagged soluble FasL (HLA-pfFasL). The f and p symbols represent the flag epitope and the LIF receptor-derived domain triggering the polymerisation of the FasL oligomers, respectively. Panel B: direct immunoblot of the supernatants from COS cells transfected with the empty vector (control) or the FasL constructs sFasL, sfFasL and pfFasL. Panel C: immunoprecipitation of the TCR-pfFasL chimera from transfected HEK cells, using an irrelevant IgG1 antibody, the anti-Flag (clone M2), the anti-FasL (clone 10F2), the anti-TCRγδ (clone IMU-510) or the anti-TCRδ5 (clone 12C7) antibodies. Panel D: immunoprecipitation of the HLA-pfFasL chimera from the supernatant of COS cells, with anti-Flag, anti-FasL or anti-β2microglobulin antibodies. As controls, the same experiment was performed with irrelevant IgG1 and IgG2 antibodies. Panel E: cytotoxic effect of the FasL chimeras. The indicated chimeras, as supernatants from transfected cells and quantitated using the ELISA for FasL, were incubated at the indicated concentrations with Jurkat cells. After 18 h, the MTT cell viability assay was performed. The anti-Flag M2 antibody at 0.5 µg/ml was added to sfFasL to render it cytotoxic.

    Journal: PLoS ONE

    Article Title: Enhancing Production and Cytotoxic Activity of Polymeric Soluble FasL-Based Chimeric Proteins by Concomitant Expression of Soluble FasL

    doi: 10.1371/journal.pone.0073375

    Figure Lengend Snippet: Description and characterization of the chimeric human FasL-derived constructs Panel A: Schematic representation of soluble FasL (sFasL), Flag-tagged sFasL (sfFasL), polymeric Flag-tagged soluble FasL (pfFasL), polymeric TCR γ4 and δ5 Flag-tagged soluble FasL generating the TCR-pfFasL upon cotransfection, and beta2-microglobulin-fused HLA-A*02: 01 Flag-tagged soluble FasL (HLA-pfFasL). The f and p symbols represent the flag epitope and the LIF receptor-derived domain triggering the polymerisation of the FasL oligomers, respectively. Panel B: direct immunoblot of the supernatants from COS cells transfected with the empty vector (control) or the FasL constructs sFasL, sfFasL and pfFasL. Panel C: immunoprecipitation of the TCR-pfFasL chimera from transfected HEK cells, using an irrelevant IgG1 antibody, the anti-Flag (clone M2), the anti-FasL (clone 10F2), the anti-TCRγδ (clone IMU-510) or the anti-TCRδ5 (clone 12C7) antibodies. Panel D: immunoprecipitation of the HLA-pfFasL chimera from the supernatant of COS cells, with anti-Flag, anti-FasL or anti-β2microglobulin antibodies. As controls, the same experiment was performed with irrelevant IgG1 and IgG2 antibodies. Panel E: cytotoxic effect of the FasL chimeras. The indicated chimeras, as supernatants from transfected cells and quantitated using the ELISA for FasL, were incubated at the indicated concentrations with Jurkat cells. After 18 h, the MTT cell viability assay was performed. The anti-Flag M2 antibody at 0.5 µg/ml was added to sfFasL to render it cytotoxic.

    Article Snippet: The anti-FasL 14C2 or the anti-Flag mAbs were pre-coated overnight onto 96 well ELISA plates (Maxisorp Nunc, Thermo Scientific, Rochester, USA) respectively at 1 µg or 0.25 µg/well in hydrogenocarbonate coating buffer (pH = 9.6).

    Techniques: Derivative Assay, Construct, Cotransfection, FLAG-tag, Transfection, Plasmid Preparation, Immunoprecipitation, Enzyme-linked Immunosorbent Assay, Incubation, MTT Assay, Viability Assay

    Direct association of sFasL to the pfFasL-containing chimeric proteins during co-expression. Panel A: Identical amounts of pfFasL (1 µg, according to the Flag ELISA) produced in the presence of the indicated ratios of added sFasL plasmid (left panels) was immunoprecipitated with the anti-FasL (upper panel) or anti-Flag (lower panel) antibodies, followed by a SDS-PAGE under reducing conditions and immunoblotting with an anti-FasL antibody. As a control, the same experiment was performed for the sFasL molecule (3 µg according to the FasL ELISA, right panel). Panel B: Densitometric detection and quantification of the pfFasL (grey bars) and the sFasL (black bars) fractions, following transfection of the pfFasL plasmid in the presence of the indicated proportion of the sFasL plasmid. The measures were normalized to the condition lacking sFasL. Mean+/- sd from three experiments. Panel C: The TCR-pfFasL chimera (2 µg, according to an ELISA specific for the TCR-pFasL molecule using anti-TCRδ5 (clone 12C7) and anti-FasL (clone 10F2) as capture and tracing antibodies, respectively), produced in the absence or the presence of the sFasL plasmid at the indicated ratio, was immunoprecipitated with the anti-TCRδ5 antibody, then separated by 10% SDS-PAGE under reducing conditions and revealed by immunoblotting with the anti-FasL antibody. As a control, the immunoprecipitation experiment was performed with 2 µg of sFasL protein. Panel D: COS supernatants containing pfFasL (4 µg/ml according to the Flag ELISA) produced alone, was mixed with culture medium or sFasL (15 µg/ml) produced separately in a total volume of 1 ml, and incubated for 24 h at 37°C. Then the recombinant proteins were immunoprecipitated (left panels) with the anti-FasL (upper panel) or anti-Flag (lower panel) antibodies, followed by a SDS-PAGE under reducing conditions and immunoblotting with an anti-FasL antibody. As a control, the same experiment was performed for the sFasL molecule (15 µg according to the FasL ELISA, right panel).

    Journal: PLoS ONE

    Article Title: Enhancing Production and Cytotoxic Activity of Polymeric Soluble FasL-Based Chimeric Proteins by Concomitant Expression of Soluble FasL

    doi: 10.1371/journal.pone.0073375

    Figure Lengend Snippet: Direct association of sFasL to the pfFasL-containing chimeric proteins during co-expression. Panel A: Identical amounts of pfFasL (1 µg, according to the Flag ELISA) produced in the presence of the indicated ratios of added sFasL plasmid (left panels) was immunoprecipitated with the anti-FasL (upper panel) or anti-Flag (lower panel) antibodies, followed by a SDS-PAGE under reducing conditions and immunoblotting with an anti-FasL antibody. As a control, the same experiment was performed for the sFasL molecule (3 µg according to the FasL ELISA, right panel). Panel B: Densitometric detection and quantification of the pfFasL (grey bars) and the sFasL (black bars) fractions, following transfection of the pfFasL plasmid in the presence of the indicated proportion of the sFasL plasmid. The measures were normalized to the condition lacking sFasL. Mean+/- sd from three experiments. Panel C: The TCR-pfFasL chimera (2 µg, according to an ELISA specific for the TCR-pFasL molecule using anti-TCRδ5 (clone 12C7) and anti-FasL (clone 10F2) as capture and tracing antibodies, respectively), produced in the absence or the presence of the sFasL plasmid at the indicated ratio, was immunoprecipitated with the anti-TCRδ5 antibody, then separated by 10% SDS-PAGE under reducing conditions and revealed by immunoblotting with the anti-FasL antibody. As a control, the immunoprecipitation experiment was performed with 2 µg of sFasL protein. Panel D: COS supernatants containing pfFasL (4 µg/ml according to the Flag ELISA) produced alone, was mixed with culture medium or sFasL (15 µg/ml) produced separately in a total volume of 1 ml, and incubated for 24 h at 37°C. Then the recombinant proteins were immunoprecipitated (left panels) with the anti-FasL (upper panel) or anti-Flag (lower panel) antibodies, followed by a SDS-PAGE under reducing conditions and immunoblotting with an anti-FasL antibody. As a control, the same experiment was performed for the sFasL molecule (15 µg according to the FasL ELISA, right panel).

    Article Snippet: The anti-FasL 14C2 or the anti-Flag mAbs were pre-coated overnight onto 96 well ELISA plates (Maxisorp Nunc, Thermo Scientific, Rochester, USA) respectively at 1 µg or 0.25 µg/well in hydrogenocarbonate coating buffer (pH = 9.6).

    Techniques: Expressing, Enzyme-linked Immunosorbent Assay, Produced, Plasmid Preparation, Immunoprecipitation, SDS Page, Transfection, Incubation, Recombinant

    Effect of sFasL on the supernatant production of the Flag-tagged FasL constructs. Panels A to D : An increasing amount expressed in percentage, of the sFasL encoding plasmid, was co-transfected with a fixed amount of the plasmids encoding sfFasL (Panel A), pfFasL (Panel B), TCR-pfFasL (Panel C) and HLA-pfFasL (Panel D). The secreted proteins were quantified in culture supernatants using an ELISA specific for FasL (shaded histograms, right-hand scale) and for Flag-tagged FasL (curves, left-hand scale). For the Flag ELISA, the measured concentrations were normalized according to the condition lacking sFasL. Are presented the mean +/- sd of four independent transfection experiments. * 0.02≤p≤0.05; ** p≤0.02. Panel E : direct anti-FasL immunoblot analysis of identical volumes of the cell culture supernatant containing pfFasL produced alone and with 50% of the sFasL plasmid, after SDS-PAGE separation under reducing conditions.

    Journal: PLoS ONE

    Article Title: Enhancing Production and Cytotoxic Activity of Polymeric Soluble FasL-Based Chimeric Proteins by Concomitant Expression of Soluble FasL

    doi: 10.1371/journal.pone.0073375

    Figure Lengend Snippet: Effect of sFasL on the supernatant production of the Flag-tagged FasL constructs. Panels A to D : An increasing amount expressed in percentage, of the sFasL encoding plasmid, was co-transfected with a fixed amount of the plasmids encoding sfFasL (Panel A), pfFasL (Panel B), TCR-pfFasL (Panel C) and HLA-pfFasL (Panel D). The secreted proteins were quantified in culture supernatants using an ELISA specific for FasL (shaded histograms, right-hand scale) and for Flag-tagged FasL (curves, left-hand scale). For the Flag ELISA, the measured concentrations were normalized according to the condition lacking sFasL. Are presented the mean +/- sd of four independent transfection experiments. * 0.02≤p≤0.05; ** p≤0.02. Panel E : direct anti-FasL immunoblot analysis of identical volumes of the cell culture supernatant containing pfFasL produced alone and with 50% of the sFasL plasmid, after SDS-PAGE separation under reducing conditions.

    Article Snippet: The anti-FasL 14C2 or the anti-Flag mAbs were pre-coated overnight onto 96 well ELISA plates (Maxisorp Nunc, Thermo Scientific, Rochester, USA) respectively at 1 µg or 0.25 µg/well in hydrogenocarbonate coating buffer (pH = 9.6).

    Techniques: Construct, Plasmid Preparation, Transfection, Enzyme-linked Immunosorbent Assay, Cell Culture, Produced, SDS Page

    Effect of sFasL on cell targeting of the FasL-containing chimeras. Panel A : Schematic description of the experimental model used. The chimera is enriched at the surface of the CD32-expressing L-cells via its HLA targeting module and an anti-HLA monoclonal antibody. Panel B: murine Fas (continuous line), human CD32 (dashed line) and IgG1 isotype-matched control (shaded histogram) staining of the CD32+ L-cell transfectant. Living cells were gated on the basis of the morphological parameters. Panel C : Fas sensitivity of the CD32+ L-cell transfectant to the indicated concentrations of the anti-Fas JO-2 antibody (circles), the HLA-pfFasL chimera expressed alone (triangle) or in the presence of 25% of the sFasL plasmid (squares), in the MTT viability assay. Panel D : The CD32+ L-cells were incubated with the HLA-pfFasL chimera produced in the presence (black bars) or in the absence (white bars) of 25% of the sFasL plasmid, together with the indicated irrelevant IgG1 isotype-matched, anti-beta-2 microglobulin or anti-Flag antibodies. The concentrations of the chimera that triggered 15% of cell death and were at 15 and 0.3 ng/ml in the absence and presence of sFasL, as estimated using the ELISA specific for the Flag-tagged FasL. Cytotoxicity was measured with the propidium iodide assay and normalized to the effect of the chimera in the absence of antibody. Are presented the mean +/- sd of three independent experiments. Panel E: reversal in the presence of the blocking anti-FasL and anti-CD32 antibodies, of the cytotoxic effect of the immune complexes between the anti-Flag antibody and HLA-pfFasL co-expressed with sFasL. Are presented the mean +/- sd of three independent experiments. ns : non significant ; ** p≤0.02.

    Journal: PLoS ONE

    Article Title: Enhancing Production and Cytotoxic Activity of Polymeric Soluble FasL-Based Chimeric Proteins by Concomitant Expression of Soluble FasL

    doi: 10.1371/journal.pone.0073375

    Figure Lengend Snippet: Effect of sFasL on cell targeting of the FasL-containing chimeras. Panel A : Schematic description of the experimental model used. The chimera is enriched at the surface of the CD32-expressing L-cells via its HLA targeting module and an anti-HLA monoclonal antibody. Panel B: murine Fas (continuous line), human CD32 (dashed line) and IgG1 isotype-matched control (shaded histogram) staining of the CD32+ L-cell transfectant. Living cells were gated on the basis of the morphological parameters. Panel C : Fas sensitivity of the CD32+ L-cell transfectant to the indicated concentrations of the anti-Fas JO-2 antibody (circles), the HLA-pfFasL chimera expressed alone (triangle) or in the presence of 25% of the sFasL plasmid (squares), in the MTT viability assay. Panel D : The CD32+ L-cells were incubated with the HLA-pfFasL chimera produced in the presence (black bars) or in the absence (white bars) of 25% of the sFasL plasmid, together with the indicated irrelevant IgG1 isotype-matched, anti-beta-2 microglobulin or anti-Flag antibodies. The concentrations of the chimera that triggered 15% of cell death and were at 15 and 0.3 ng/ml in the absence and presence of sFasL, as estimated using the ELISA specific for the Flag-tagged FasL. Cytotoxicity was measured with the propidium iodide assay and normalized to the effect of the chimera in the absence of antibody. Are presented the mean +/- sd of three independent experiments. Panel E: reversal in the presence of the blocking anti-FasL and anti-CD32 antibodies, of the cytotoxic effect of the immune complexes between the anti-Flag antibody and HLA-pfFasL co-expressed with sFasL. Are presented the mean +/- sd of three independent experiments. ns : non significant ; ** p≤0.02.

    Article Snippet: The anti-FasL 14C2 or the anti-Flag mAbs were pre-coated overnight onto 96 well ELISA plates (Maxisorp Nunc, Thermo Scientific, Rochester, USA) respectively at 1 µg or 0.25 µg/well in hydrogenocarbonate coating buffer (pH = 9.6).

    Techniques: Expressing, Staining, Transfection, Plasmid Preparation, MTT Assay, Viability Assay, Incubation, Produced, Enzyme-linked Immunosorbent Assay, Blocking Assay

    Effect of sFasL on the cytotoxic activity of the Flag-tagged FasL chimeras. The FasL-derived proteins sfFasL (Panel A), pfFasL (Panel B), TCR-pfFasL (Panel C) and HLA-pfFasL (Panel D) were expressed alone or upon co-transfection with the indicated percentage of the plasmid encoding sFasL. A fixed concentration triggering 25 to 40% of cell death (1.9 ng/ml for sfFasL, 0.6 ng/ml for pfFasL, 0.7 ng/ml for HLA-pfFasL and 2.2 ng/ml for TCR-pfFasL), for the FasL-derived protein quantitated with the ELISA specific for Flag-tagged FasL, was incubated with the Fas-sensitive Jurkat cells. For the sfFasL construct, the filled squares and the empty squares depict the cytotoxicity of sfFasL in the presence and absence of the cross-linking anti-Flag antibody at 0.5 µg/ml), respectively. Cytotoxicity was estimated by a measure of the remaining viable cells using the MTT assay. Are presented the mean +/- sd of four independent transfection experiments. * 0.01≤p≤0.05; ** p≤0.01.

    Journal: PLoS ONE

    Article Title: Enhancing Production and Cytotoxic Activity of Polymeric Soluble FasL-Based Chimeric Proteins by Concomitant Expression of Soluble FasL

    doi: 10.1371/journal.pone.0073375

    Figure Lengend Snippet: Effect of sFasL on the cytotoxic activity of the Flag-tagged FasL chimeras. The FasL-derived proteins sfFasL (Panel A), pfFasL (Panel B), TCR-pfFasL (Panel C) and HLA-pfFasL (Panel D) were expressed alone or upon co-transfection with the indicated percentage of the plasmid encoding sFasL. A fixed concentration triggering 25 to 40% of cell death (1.9 ng/ml for sfFasL, 0.6 ng/ml for pfFasL, 0.7 ng/ml for HLA-pfFasL and 2.2 ng/ml for TCR-pfFasL), for the FasL-derived protein quantitated with the ELISA specific for Flag-tagged FasL, was incubated with the Fas-sensitive Jurkat cells. For the sfFasL construct, the filled squares and the empty squares depict the cytotoxicity of sfFasL in the presence and absence of the cross-linking anti-Flag antibody at 0.5 µg/ml), respectively. Cytotoxicity was estimated by a measure of the remaining viable cells using the MTT assay. Are presented the mean +/- sd of four independent transfection experiments. * 0.01≤p≤0.05; ** p≤0.01.

    Article Snippet: The anti-FasL 14C2 or the anti-Flag mAbs were pre-coated overnight onto 96 well ELISA plates (Maxisorp Nunc, Thermo Scientific, Rochester, USA) respectively at 1 µg or 0.25 µg/well in hydrogenocarbonate coating buffer (pH = 9.6).

    Techniques: Activity Assay, Derivative Assay, Cotransfection, Plasmid Preparation, Concentration Assay, Enzyme-linked Immunosorbent Assay, Incubation, Construct, MTT Assay, Transfection