Parenchymal microglia of naïve adult C57BL/6J mice express high levels of B7.1, B7.2, and MHC class II.
Zhang GX, Li J, Ventura E, Rostami A. Parenchymal microglia of naïve adult C57BL/6J mice express high levels of B7.1, B7.2, and MHC class II. Exp Mol Pathol. 2002 Aug; 73(1):35-45.