UNIT 16.2 Presenting Exogenous Antigen to T Cells

  1. Clifford V. Harding

Published Online: 1 MAY 2001

DOI: 10.1002/0471142735.im1602s23

Current Protocols in Immunology

Current Protocols in Immunology

How to Cite

Harding, C. V. 2001. Presenting Exogenous Antigen to T Cells. Current Protocols in Immunology. 23:16.2:16.2.1–16.2.15.

Author Information

  1. Case Western Reserve University, Cleveland, Ohio

Publication History

  1. Published Online: 1 MAY 2001
  2. Published Print: SEP 1997

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Antigen-processing experiments can be performed with a wide variety of antigen-presenting cells (APCs). An important technical distinction for some types of experiments is whether the APCs are adherent or nonadherent, since this dictates the procedures that must be used to wash the cells as the medium is changed. This unit describes approaches that can be used for adherent cells (e.g., macrophages or fibroblasts) or nonadherent cells (e.g., B lymphoma cell lines), or both, using similar cell numbers. The protocols utilize T hybridomas to detect expression of peptide-MHC complexes, since these cells provide the most convenient, consistent, and flexible T cell readout systems for these purposes. If desired, antigen-specific T cell clones can be used in lieu of T hybridoma cells, but T cell clones often give poorer responses than T hybridomas to fixed APCs due to fixation-induced loss of costimulator function.