Abstract:T cell diversity is a key feature of the adaptive immune system. Lymphopenia‐induced proliferation (LIP) can trigger oligoclonal expansion of T cells reacting to foreign or self‐antigens. This can result in loss of T cell diversity and compromise immune fitness that can be achieved following reconstitution by LIP. We demonstrate that CD4+CD25+Fopx3+ regulatory T cells selectively inhibit the spontaneous (fast) form of LIP, which is associated with differentiation into memory/effector‐like cells, and is likely … Show more
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