Temporal and phenotypic profiles of lymphocyte expansion in lymphopenic mouse brain.
CD4+ T cells are the most abundant lymphocyte subtype in the brain during expansion.
Lymphocytes are mainly localized to the meninges and the choroid plexus.
Lymphocytes are found in several brain structures devoid of blood brain barrier.
Lymphocytes interact with the neurovasculature during expansion in the brain.