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3 protocols using antihumantnf α

1

Flow Cytometry of Immune Cell Subsets

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The following fluorochrome conjugated antihuman monoclonal antibodies (MoAbs) were used for flow cytometry studies: ICOSBV421, ICOSAlexa488, CD40LBV605, CD69BV650, HLA-DRFITC, CD38APCCy7, and TNF-αAPCCy7 from BioLegend (San Diego, CA); CD3BUV395, CD4PerCPCy5.5, CD8Alexa-Fluor700, CCR7PECF594, IL-2BV711, CXCR5Alexa647, IFNγPE-Cy7, PD1BV650, CD45ROAPCH7, CD21PECy5, CD27PerCPCy5.5, IgDFITC, CD10PECy7, and CD20Alexa700 from BD Bioscience (San Jose, CA); IL-21PE, CD27PECy5, and IL-17Alexa488 from e-Biosciences (San Diego, CA); and CD45ROPE-TexasRed from Beckman Coulter (Fullerton, CA). Live/Dead Fixable Aqua Dead Cell Stain Kit and CellTrace Violet Cell Proliferation Kit were from ThermoFisher (Boston, MA). Recombinant human IL-21 (Cat #8879-IL-010) from R&D systems, purified antihuman IL-2 (Cat #3440-ON-500) and antihuman-IL-21 (Cat #MT216G/21.3m) from Mabtech, and antihumanTNF-α (Cat #502922) from BioLegend were used. Samples were acquired on a BD LSRFortessa (BD Biosciences, CA) flow cytometer and analyzed by FlowJo V10 (TreeStar, Inc).
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2

ELISA Quantification of TNF-α

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Analysis of TNF-α protein released from hMDMs was performed with a sandwich ELISA, as previously described.82 (link) Purified and biotin-labeled antihuman TNF-α and protein standards were purchased from BioLegend (San Diego, CA).
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3

Profiling Urine Cell Immune Signatures

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Cryopreserved patient post-BCG urine cells were thawed and resuspended in cR-10 media at 10×106 cells/mL then passed through 100 µm strainer. Urine cell suspensions were either directly stained with flow cytometry antibody (for T cells and activation markers) or incubated with PMA/Ionomycin/Golgi Blocker (BioLegend, Cell Activation Cocktail) for 4 hours, followed by cell surface staining for T cells and then intracellular staining for cytokines. Flow staining antibodies/dye used were as follows: Fc blocker/Human TruStain FcX (BioLegend), fixable viability dye eFluor455UV (Thermo Fisher Scientific/eBioscience), anti-human CD45 (BioLegend, clone HI30), anti-human CD3, anti-human CD4, anti-human CD8, anti-human γδ TCR, anti-human TCR Vγ9 (BioLegend, clone B3), anti-human TCR Vδ2 (BioLegend, clone B6), anti-human CCR2 (BioLegend, clone KO36C2), anti-human CD44 (BioLegend, clone IM7), anti-human CD107a, anti-human CD56 (BioLegend, clone 5.1H11), anti-human IFNγ, anti-human TNFα, anti-human Granzyme B (BioLegend, clone GB11), anti-human Perforin (BioLegend, clone dG9). Fixed and stained urine cell samples were then passed through a 35 µm filter cap on a flow tube to remove any remaining debris before they were analyzed on an LSR II cytometer (BD).
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