Khavinson VK, Linkova NS, Polyakova VO, Dudnov AV, Kvetnoy IM. Age-specific dynamics of human thymus immune cell differentiation.
Bull Exp Biol Med 2012;
151:631-3. [PMID:
22462064 DOI:
10.1007/s10517-011-1401-1]
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Abstract
The expression of markers of undifferentiated CD5+ cells, B cells, T-killer/suppressors, and T-helpers was verified by immunohistochemical methods in the thymuses of elderly, senile, and long-lived humans. The counts of CD5+ cells in the thymus progressively decreased with age. Positive correlations between the counts of CD5+ cells and differentiated T cells were detected. The capacity of CD5+ thymocytes to differentiate into T-killer/suppressors decreased with age.
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