PD-L1 Antibody is Detectable on Multiple Cell Types

Protozoa Immunology
Bernhard Nocht Institut
Research Scientist

Overall

Quality of Results

Ease-of-Optimization

What do these ratings mean?
Write a Review

Company:

Thermo Fisher Scientific

Product Name:

a-mouse PD-L1 PerCP-eF710

Catalog Number:

46-5982-82

Clone Number:

MIH5

Info:Supplier Page View Product Specs

Browse Similar Products: PDL1 Antibodies

I tested this antibody to identify co-inhibitory molecules and their ligands on T cells in a large panel which also analyses B cells, macrophages, monocytes, DCs and NK cells. I used this antibody on splenocytes obtained from C57BL/6J mice infected with Plasmodium berghei ANKA (PbA), a mouse model to investigate malaria. CD274 (PD-l1) is a ligand to PD-1, perhaps the most known co-inhibitory molecules. Accordingly, this molecules was highly relevant to the panel. I aimed to analyse its expression on antigen-presenting cells, however, I was also able to detect PD-L1 expression on T cells.

Experimental Design and Results Summary

Applications

Flow Cytometry

Sample

C57BL/6 splenocytes

Primary Incubation

1:100, 20 min, 4°C, in 50ul, in the dark

Blocking Agent

Fc Block

Secondary Incubation

Fix/Perm buffer, 20 min, 4°C, in 70ul, in the dark

Tertiary Incubation

20 min, 4°C, in the dark, in 50µl Perm/wash

Detection

Flow cytometry

Results Summary

PD-L1 may be expressed on multiple cell types, including antigen-presenting cells as well as T cells. I used this antibody for a 41-color panel measured on a 5L Cytek Aurora. I preferred PerCP-eF710 over other PerCP-conjugates as its emission shifts further in the red emission range, away from similar emitting fluorochromes used in this panel (Ly-6G PerCP; PE-Cy5 CD127). Furthermore, brightness was sufficient to detect a clear shift in signal between naïve and PbA-infected animals. Shown here are monocytes (CD11b+ F4/80+) isolated from the spleens of C57BL/6 mice. Histogram shows cells from naïve (blue) and infected (red) animals. At a concentration of 1:100, this antibody can be used cost-effectively.In the following, you will find my staining protocol in short. Incubation steps were performed at 4°C in the dark. 1.Count and adjust splenocytes to 1.5E6 cells, plate in a 96-well plate. 2.If required, stain cells with viability dye. Wash. 3. Stain with extracellular master mix for 20 min. Wash 2x. 4. Fixate/ Permeabilize with buffer of choice, depending on application. I used ThermoFisher FoxP3 fixation/permeabilization kit for 20 min. Wash with perm/ Wash 2x. 5. Perform intracellular staining for 20 min. Wash 2x. 6. Resuspend in FACS buffer and acquire as soon as possible. Here, data was acquired on a 5L Cytek Aurora.

DOI or PMID #

N/A

Additional Notes

N/A

Image Gallery

Summary

The Good

Works well, even on a PerCp-based conjugate.

The Bad

N/A

The Bottom Line

Was very happy with this antibody, which allowed me to utilize the emission range around 700nm on the blue laser line. Usually, these fluorochromes can cause issues.

Share your experience with other scientists. Write a Review! »

Join the discussion