Effect of PD-1 immune checkpoint in Alzheimer's disease transgenic mice. Mus musculus

We examined the brain's choroid plexus and myeloid cell populations isolated from the brain of 5XFAD Alzheimer's disease transgenic mice following PD-1 blockade Overall design: Choroid plexus samples and myeloid cell populations were isolated from the brain of 5XFAD mice following PD-1 blockade, and sequenced. For choroid plexus samples, 5 mice were treated with anti-PD-1, 5 with IgG control, and 4 were left untreated. For the myeloid cells samples, myeloid cells sorted from the brains of 5XFAD mice according to a gating strategy that seperate microglia (CD11b+CD45-low) and monocytes-derived macrophages (CD11b+CD45-high).