FACS to Identify Immune Subsets in Mouse Brain and Spleen.

Flow cytometry enables the multi-parametric quantification of cell types, especially in immunophenotyping of unique immune cell subsets that can either contribute to or ameliorate pathology. For tissues to be used in such analyses, single-cell suspensions must be created. Here we describe protocols for preparing single-cell suspensions of mouse spleen and brain tissue, as well as the steps for fluorescently activated cell staining/sorting (FACS). Specifically, this protocol enables the isolation of lymphocytes for the study of immune responses during various diseases, such as long-term neuroinflammation following ischemic stroke.