| Summary: | Summary: Glioma-associated oncogene homolog 1 (Gli1) marks a subpopulation of endogenous mesenchymal stem cells (MSCs) characterized by perivascular location. Here, we present an optimized immunofluorescence staining protocol to identify resident Gli1+ MSCs in fixed/frozen bone sections from LacZ transgenic mice. This protocol describes the preparation of fixed/frozen tissue sections and the use of LacZ immunofluorescent staining for the in vivo characterization of endogenous MSCs, regarding their specific identity and specialized niches, and is applicable to LacZ-expressing cells of diverse organs.For complete details on the use and execution of this protocol, please refer to Chen et al. (2020). : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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