Lamikanra et al.T Regulatory Cell Migration and Vitamin D association with vitamin D status. Important for cellular therapies requiring isolation of Tregs, the absolute number of β7 + CD4 + CD25 + FOXP3 + Tregs was positively associated with 25(OH)vitamin D3 (R 2 = 0.0208, r = 0.184, p = 0.021) whereas the absolute numbers of CLA + CD4 + CD25 + FOXP3 + Tregs in the periphery were not influenced by vitamin D status. These baseline observations provide new opportunities to utilize seasonal variables that influence Treg numbers and their migratory potential in patients or donors.
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