T cell repopulation from functionally restricted splenic progenitors: 10,000-fold expansion documented by using limiting dilution analyses.


Mice depleted of T cells by thymectomy, lethal irradiation, and reconstitution with Thy-1-depleted syngeneic bone marrow were given graded doses of splenic T cells to see whether post-thymic cells had the ability to regenerate immune function in these hosts. Using limiting dilution methods to estimate the number of antigen- and mitogen-responsive cells in… (More)


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