© 1975 by The Society for Integrative and Comparative Biology
The Development of Host-Type
and TL Antigens in Nude Mice after Transplantation of a Neonatal Thymus
Basel Institute for Immunology Grenzacherstrasse 487, CH-4058 Basel, Switzerland
Thymus cells from the BALB/c and AKR mouse strains can be distinguished by the 8 and TL surface antigens. When a BALB/c-nunu (athymic) mouse is grafted with a neonatal AKR thymus, the great majority of the cells of the grafted thymus retain AKR characteristics for about 12 days. Between day 12 and day 26 both host- and donor-type cells can be found, but after day 26 there are only host-type cells. The differentiation of host-type T cell precursors requires the presence of thymus epithelium and perhaps actual thymus structure.