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Alexa 488 labeled antibodies

Manufactured by Thermo Fisher Scientific
Sourced in United Kingdom, Germany

Alexa 488-labeled antibodies are fluorescently-conjugated antibodies that emit green fluorescence when excited with blue light. They can be used for a variety of applications in biological research, such as immunofluorescence microscopy and flow cytometry, to detect and visualize target proteins or cells.

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2 protocols using alexa 488 labeled antibodies

1

Immunogenic Cell Death Markers in Reovirus-Treated Cells

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FACS analysis was used to determine expression of ICD determinants on the surfaces of reovirus-treated cells. Cell lines untreated, treated with reovirus (MOIs at IC50, 3 for PC3, 40 for DU145, and 0.06 for TRAMP-C2), or exposed to heat-inactivated reovirus for 24, 48, and 72 h were incubated with anti-HSP70 (clone: EPR16892), anti-calreticulin (rabbit polyclonal), and a rabbit isotype control (Abcam, UK). Additional stains included major histocompatibility complex (MHC) class I (clone: W6132; BioLegend, UK), CD80 (clone: 2D10; eBioscience, UK), FAS (rabbit polyclonal; Abcam, UK), and CD274 (PD-L1) (M1H2; BioLegend, UK). Relevant secondary Alexa 488-labeled antibodies were subsequently applied (Molecular Probes, UK). For the detection of murine markers on the TRAMP-C2 line, the additional following antibodies were used: anti-mouse H-2 (clone: M1/42; BioLegend, UK), anti-mouse CD80 (clone: 16-10A1; BioLegend, UK), and anti-mouse CD274 (PD-L1) (clone: M1H7; eBioscience, UK).
Released ATP and HMGB1 levels in cell supernatants of cell lines untreated, treated with reovirus, or exposed to heat-inactivated reovirus for 24, 48, and 72 h were detected using a standard ATP determination kit according to the manufacturer’s (Molecular Probes) instructions or measured by an HMGB1 ELISA (IBL International, Hamburg, Germany).
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2

Immunogenic Profiling of Cell Lines

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FACS analysis was used to determine expression of ICD determinants on the surfaces of treated cells. Cell lines untreated, treated with Mitomycin-C (0.5 μg/mL) for 1 hr, or exposed to CVA21 for 24–72 hr with or without prior Mitomycin-C treatment were harvested and incubated with anti-HSP70, anti-calreticulin, and an isotype control (Abcam). Additional stains included MHCII (BioLegend), CD80 (eBioscience), FAS (Abcam), and PD-L1 (eBioscience). Relevant secondary Alexa-488-labeled antibodies were subsequently applied (Molecular Probes).
Released HMGB1 was measured in the conditioned media of cell lines by ELISA (IBL International, Hamburg, Germany) and extracellular ATP by ATP determination kit (Molecular Probes).
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