Change of naïve and MP T cell populations in <i>Hoxb4</i> transgenic and wt mice with age.

<p>Scatter plots showing the percentage of (<b>A</b>) CD4 and (<b>B</b>) CD8 T cells that are naïve (CD44^lo/CD62L^hi), MP (CD44^hi) or are a subpopulation of MP T cells (CD44^hi/Ly6C^hi) for LN, Spl and BM derived from individual <i>Hoxb4</i> transgenic and wt (n = 6–8) age matched mice. Young mice are between 3–4 months and old mice are all older than 28 months. Naïve and MP populations change significantly with age, but not between <i>Hoxb4</i> and wt mice. *P<0.05, 2-tailed Student ttest. MP = memory phenotype, Wt = wild type, LN = lymph node, Spl = spleen and BM = bone marrow.