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Bms215 2

Manufactured by Thermo Fisher Scientific

The BMS215/2 is a laboratory equipment manufactured by Thermo Fisher Scientific. It is designed to perform basic liquid handling tasks within a controlled laboratory environment.

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5 protocols using bms215 2

1

Quantifying Inflammatory Cytokines by ELISA

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Enzyme-linked immunosorbent assays (ELISA) were utilized for the quantification of inflammatory antigens in the cell supernatant. The assessed markers included human Interleukin (IL)-1β, IL-4, IL-6, IL-10 and Tumor necrosis factor α (TNF-α). All ELISA kits were obtained from Thermo Fisher Scientific, with the following kit numbers: BMS224-2 (IL-1β), BMS225-2 (IL-4), EH2IL6 (IL-6), BMS215-2 (IL-10) and BMS223-4 (TNF-α). All reagents were maintained at room temperature before use. Cytokine markers were detected at a wavelength of 450 nm, as per manufacturer’s protocols. A standard curve was used for each assay to determine the cytokine concentration levels of the samples, as per manufacturer’s protocols and expressed in pg/mL.
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2

Cytokine Profiling of CAR T Cells

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CAR T cells or control T cells were cocultured with target cells (K562-PDL1-GL, HeLa-GL or H460-MSLN-GL cells) at a 1:1 E:T ratio for 24 h, and then the culture supernatants were collected. The production of IL-2 (ThermoFisher, BMS221-2), IFN-γ (ThermoFisher, BMS228), IL5 (ThermoFisher, BMS278), IL10 (ThermoFisher, BMS215-2) and IL13 (ThermoFisher, BMS231-3) was measured with enzyme-linked immunosorbent assay (ELISA) kits. All ELISAs were performed according to the manufacturer’s protocols.
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3

Synergistic CD19 T cell Activation

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Primary human CD4+ T cells were transduced with the α-CD19 synNotch Gal4VP64 receptor and 5× Gal4 response elements controlling human PD-L1 T2A IL-10 expression. The synNotch T cells were stimulated with either surface CD19+ or CD19- K562s for 24 hr and supernatant was harvested for IL-10 ELISA analysis (eBiosciences #BMS215/2). The T cells were also collected and stained separately for intracellular IL-10 with α-IL-10 APC (Biolegend #501410) and for surface PD-L1 with α-PD-L1 BV421 (Biolegend #329714).
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4

Perioperative Inflammatory Biomarker Profiling

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Venous blood was withdrawn during hospital admission and 7 days postoperation. The plasma was obtained with a centrifugation for 15 min at 1780 ×g and −4°C; 300 μL aliquots have been stored at −80°C until use. The plasma levels of interleukin- (IL-) 1β, IL-6, IL-8, IL-10, IL-12, tumor necrosis factor- (TNF-) α, and C-reactive protein (CRP) were measured by enzyme-linked immunosorbent assay using the kits purchased from eBioscience (BMS224/2, BMS213/2, BMS204/3CE, BMS215/2, BMS238CE, BMS223/4CE, and 88-7502-28, resp.) according to the manufacturer's instructions. All samples were plated in duplicates, with average concentrations used for further analysis.
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5

Measuring Inflammatory Biomarkers in Plasma

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Plasma levels of monocyte chemotactic protein‐1 (MCP‐1), interleukin (IL)‐10, and IL‐12 were measured using the enzyme‐linked immunosorbent assay kits (BMS281, BMS215/2 and BMS238, respectively; eBioscience, San Diego, CA), and the ratio of IL‐10 to IL‐1212 were calculated for the assessment of systematic inflammation.
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