PD-L1 antibody | knockout validation | Abcam ab213480

This is a knockout-validated antibody summary, based on publications "N 6-methyladenosine-modified circIGF2BP3 inhibits CD8 + T-cell responses to facilitate tumor immune evasion by promoting the deubiquitination of PD-L1 in non-small cell lung cancer", as cited below [1], and "Irradiation combined with PD-L1-/- and autophagy inhibition enhances the antitumor effect of lung cancer via cGAS-STING-mediated T cell activation" for western blot knockout validation (figure 5e) [2]. Labome curates formal publications to compile a list of antibodies with unambiguous specificity within Validated Antibody Database (VAD).

PD-L1 antibody | knockout validation | Abcam ab213480 figure 1
Figure 1. Representative images and statistical quantitation of IF staining of PKP3, PD-L1 and CD8α in the indicated groups. Scale bars, 100 μm. From [1].
Antibody information

Rabbit monoclonal IgG

Company: Abcam

Antibody: PD-L1

Catalog number: ab213480

Summary: Rabbit monoclonal antibody against a recombinant fragment of mouse PD-L1. Reacts with mouse by western blot, immunoprecipitation, immunocytochemistry/immunofluorescence. Unsuitable for immunohistochemistry (paraffin).

Validation Method

Immunohistochemistry

Sample

Control and CD274-KO LLC cell tumors.

Blocking agent

5% BSA with 0.1% Triton X-100 for 1h at room temperature.

Primary incubation

At 4°C overnight.

Secondary incubation

Anti-rabbit Alexa Fluor 647/Alexa Fluor 488, Abcam) for 2h at room temperature.

Detection

Fluorescence microscopy (Olympus, Tokyo, Japan).

References
  1. Liu Z, Wang T, She Y, Wu K, Gu S, Li L, et al. N6-methyladenosine-modified circIGF2BP3 inhibits CD8+ T-cell responses to facilitate tumor immune evasion by promoting the deubiquitination of PD-L1 in non-small cell lung cancer. Mol Cancer. 2021;20:105 pubmed publisher
  2. Zhao X, Hu S, Zeng L, Liu X, Song Y, Zhang Y, et al. Irradiation combined with PD-L1-/- and autophagy inhibition enhances the antitumor effect of lung cancer via cGAS-STING-mediated T cell activation. iScience. 2022;25:104690 pubmed publisher