{"Procedure":"<p>\n\tPeripheral blood leukocyte assay is performed at 6 weeks of age&nbsp;(Mice were fed on Mouse Breeder Diet (5021, Labdiet) from weaning)</p>\n<p>\n\tNon-fasted unanaesthetised mice are restrained and blood is collected into EDTA coated tubes via the tail.</p>\n<p>\n\tWhole blood is stained with a titrated cocktail of antibodies including CD45, TCRab, TCRgd, CD161, CD4, CD8, CD19, CD25, CD44 and CD62L.</p>\n<p>\n\tSamples are fixed and red blood cells lysed prior to acquisition on a BD LSR II flow cytometer after running automated compensation using compbeads and BD FACSDiva software.</p>\n<p>\n\tData is analysed using FlowJo after singlet doublet&nbsp;discrimination, a time gate is used to exclude HTS issues and leukocytes&nbsp;identified&nbsp;with a SSC and CD45 gate. Total T cells, alpha beta T cells, CD4<sup>+</sup> alpha beta T cells, CD8<sup>+</sup> alpha beta T cells, gamma delta T cells, NKT cells, NK cells and B cells are reported as percentage of leukocytes. CD4<sup>+</sup> CD25<sup>+</sup> regulatory alpha beta T cells, CD4<sup>+</sup> CD44<sup>hi</sup> CD62L<sup>lo</sup> alpha beta T cells and&nbsp;CD8<sup>+</sup> CD44<sup>hi </sup>CD62L<sup>lo</sup> alpha beta T cells are reported as percentage of parent. Using the white blood cell count obtained from the&nbsp;haematology&nbsp;analysis&nbsp;absolute cell counts are derived for each population and reported as cells/ul.</p>\n","Purpose":"<p>\n\tWhole blood peripheral blood leukocyte immunophenotyping</p>\n"}