Protocol for spatially restricted CreERT2-mediated recombination in mouse brain-infiltrating B cells using intracerebral 4-hydroxy-tamoxifen.

Authors

Mika Schneider, Georgios Perdikaris, Tobias Derfuss, Nicholas S R Sanderson

Published in

STAR protocols. Volume 7. Issue 4. Pages 104856. Sep 21, 2026. Epub Sep 21, 2026.

Abstract

Tamoxifen-dependent, cre-recombinase-mediated techniques enable precise temporal control of gene expression, but do not always provide sufficient anatomical control. Here, we present a protocol to restrict gene expression using local injection of 4-hydroxy-tamoxifen in bone wax. As an example, we describe the induction of the viral protein LMP1 and the fluorescent protein tdTomato only in brain-infiltrating B cells. We describe steps for intracerebral virus injection and 4-hydroxy-tamoxifen administration in mice. For complete details on the use and execution of this protocol, please refer to Kim et al.¹.

PMID:
42766411
Bibliographic data and abstract were imported from PubMed on 22 Sep 2026.

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