White matter aging drives microglial diversity

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Grey and white matter (corpus callosum) were dissected from the brain of 4 months and 21 months old wild type mice, single cell suspension was isolated using Neural Tissue Dissection kit (myelin was removed on percoll gradient) then microglia cells were isolated using CD11b microbeads by Magnetic separation with MS columns (MACS technology).The cell pellets are resuspended in the RLT buffer (100ul-150ul), snap frozen in liquid nitrogen and stored in -80 freezer. RNA was extracted and transcriptome libraries were generated