Abstract
T cell subpopulations were obtained from F12.5 and B245/270D T cell lines during long-term culture. Two altered F12.5 subpopulations proliferated more intensively than the original clone. These two subpopulations of F12.5 constantly expressed CD25 (interleukin 2 receptor α chain) at a high level and exogenously added interleukin 2 (IL-2) enhanced cell death for one of these subpopulations. However, the original clone expressed CD25 only after activation and IL-2 inhibited cell death of the original clone. On the other hand, the altered B245/270D subpopulation lost the antigen-specific proliferation ability. This altered cell line under the stimulation culture did not express CD25 even after activation, although the original line expressed CD25. However, the expression pattern of CD25on the altered cell line at resting state was induced similar to that of the original one. These results suggest that an expression pattern of CD25 can be changed during long-term cultures, accompanied with alteration in response to proliferation and cell death.
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Kano, H., Ametani, A., Totsuka, M. et al. Murine T cell lines can change CD25 expression patterns as well as proliferation and cell death patterns in response to interleukin 2. Cytotechnology 40, 39–48 (2002). https://doi.org/10.1023/A:1023910004242
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DOI: https://doi.org/10.1023/A:1023910004242