Protocol for potent activation of T cells using BPI-stimulated murine bone marrow-derived cells

Christina Pfab1, Jonas M Holzinger2, Sarah Hirsch1

  • 1Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, Regensburg 93053, Germany.

STAR Protocols
|April 25, 2026
PubMed

In vitro T cell activation and differentiation are fundamental techniques in immunological research. Here, we present a protocol for the potent activation of T cells using bactericidal/permeability-increasing protein (BPI)-stimulated murine bone marrow-derived cells (BMDCs). We describe steps for preparing supernatants harvested from BPI-stimulated BMDCs (SN BPI). We then detail procedures for purification of (naive) CD4+ T cells from murine spleens and peripheral lymph nodes and their consecutive polyclonal activation in the presence of SN BPI. For complete details on the use and execution of this protocol, please refer to Bülow et al.1.

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