Related Experiment Video
Updated: Jun 12, 2025
Immunopeptidomics: Isolation of Mouse and Human MHC Class I- and II-Associated Peptides for Mass Spectrometry Analysis
Published on: October 15, 2021
Protocol for isolating antigen-specific monoclonal antibodies from immunized mice utilizing the Beacon platform
Meilan Fu1, Xiangwei Wang1, Shubing Tang2
1Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China.
Isolation of antigen-specific plasma B cells had been challenging until the recent arrival of the Beacon platform. Leveraging light-sorting technology, Beacon can perform high-throughput screening of plasma B cells on a chip to sort single cells with the desired antigen specificity. Here, we present a protocol for isolating antigen-specific plasma B cells from immunized mice using Beacon, sequencing the encoded B cell receptors (BCRs), and cloning and expressing the resulting antibodies. This protocol can easily be extended to human samples.
Isolation of antigen-specific plasma B cells had been challenging until the recent arrival of the Beacon platform. Leveraging light-sorting technology, Beacon can perform high-throughput screening of plasma B cells on a chip to sort single cells with the desired antigen specificity. Here, we present a protocol for isolating antigen-specific plasma B cells from immunized mice using Beacon, sequencing the encoded B cell receptors (BCRs), and cloning and expressing the resulting antibodies. This protocol can easily be extended to human samples.
