Gobbini A, Bandera A, Grifantini R, Abrignani S, Notarbartolo S. Protocol for the detection of defined T cell clones in a heterogeneous cell population.
STAR Protoc 2024;
5:102787. [PMID:
38141168 PMCID:
PMC10783555 DOI:
10.1016/j.xpro.2023.102787]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 12/25/2023] Open
Abstract
Identifying defined T cell clones within a polyclonal population is key to clarifying their phenotype and function. Here, we present a protocol for detecting specified T cell clones in a heterogeneous cell population. We describe steps for stimulating human CD4+ T cells isolated from blood with a protein antigen, sorting antigen-specific cells by fluorescence-activated cell sorting, and detecting among these the presence of predefined T cell clones, based on their T cell receptor (TCR). TCR cDNA is amplified through 5'-RACE (TCR-SMART) and detected by qPCR. For complete details on the use and execution of this protocol, please refer to Notarbartolo et al. (2021).1.
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