Microglia replacement by microglia transplantation (Mr MT) in the adult mouse brain

STAR Protoc. 2021 Jul 9;2(3):100665. doi: 10.1016/j.xpro.2021.100665. eCollection 2021 Sep 17.

Abstract

Mutations in microglia may cause brain disorders. Replacement of dysfunctional microglia by allogeneic wild-type microglia from bone marrow transplantation (Mr BMT) or peripheral blood can correct the gene deficiency at the brain-wide scale but cannot achieve precise replacement at specific brain regions. Here, we introduce a strategy with potential clinical relevance-microglia replacement by microglia transplantation (Mr MT), combining tamoxifen-induced ablation of Mr BMT cells and intracranial injection of microglia to mouse brain, to achieve region-sepcific microglia replacement. The original abbreviation of this microglia replacement strategy is mrMT. We hereby change the name to Mr MT. For complete details on the use and execution of this protocol, please refer to Xu et al. (2020).

Keywords: Cell Biology; Immunology; Microscopy; Model Organisms; Neuroscience; Stem Cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bone Marrow Transplantation / methods
  • Brain / cytology*
  • Brain / physiology
  • CX3C Chemokine Receptor 1 / genetics
  • Female
  • Green Fluorescent Proteins / genetics
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Microglia / drug effects
  • Microglia / transplantation*
  • Tamoxifen / pharmacology
  • Tissue Transplantation / instrumentation
  • Tissue Transplantation / methods*
  • Transplants

Substances

  • CX3C Chemokine Receptor 1
  • Cx3cr1 protein, mouse
  • Tamoxifen
  • Green Fluorescent Proteins