Baby hamster kidney or HeLa cells form tumors in 100% of athymic nude mice. When such cells are persistently infected (PI) with RNA viruses, such as mumps or measles virus, the tumor cells either fail to grow or form circumscribed benign nodules. Neither the parental nor the virus PI tumor cells form invasive or metastatic lesions in nude mice. Previous studies have indicated a correlation betw...

PURPOSE Transitional cell carcinoma (TCC) of the urinary tract is a chemosensitive tumor. Most deaths from TCC of the urinary tract are caused by metastasis, which is resistant to conventional chemotherapy. Frequent sites of metastases from TCC of the urinary tract are regional lymph nodes, liver, lung, and bone. Of these distant metastases, bone metastasis is consistently resistant to cisplati...

(SJL X BALB)F1 suppressed mice have, in their lymphoid tissues, a population of suppressor T cells directed specifically against a paternal gamma G2a allotype (Ig-1b). Spleen or lymph node cells from these mice were injected into syngeneic nude mice and the effect on thymus-independent synthesis of Ig-1b in the athymic recipients was determined. After the injection of suppressor cells, Ig-1b di...

In normal mice, self-H-2 antigens in the thymus have a profound influence on T cell specificity. We have therefore investigated the properties of cytotoxic T lymphocyte (CTL) precursors from athymic nude mice (5) with the notion that they may provide a model system for the study of T cells whose receptro specificity is closer to the germ-line-encoded repertoire. It was found that the precursors...

Athymic nude (nu/nu) mice were inoculated in the ear pinna with 10(4) p.f.u. herpes simplex virus type 1 (strain SC 16). Initially, the virus was observed to replicate in the pinna, spreading via a neurological route to the dorsal root ganglia, spinal cord, brain and adrenal glands. Following the transfer of lymphoid cells from day 7 herpesvirus-infected hairy immunocompetent donors into infect...

The congenitally athymic nude mouse has been widely used to study the tumorigenicity of a variety of human and animal neoplasms (1-6). Yet, nude mice appear not to be totally immunodeficient; they do not have a higher incidence than normal mice of chemical carcinogenesis or spontaneous tumors and show infrequent metastases of tumors known to be metastatic in their original host (4, 7-10). Altho...

Spleen cells from CBA or congenitally athymic ("nude") mice were pretreated with various concentrations of DNP coupled to a copolymer of D-glutamic acid and D-lysine (DNP(37)-D-GL), under various conditions of time and temperature. After washing, they were then cultured for 3 days with the direct B cell immunogen, DNP coupled to Salmonella adelaide flagella (DNP-FLA). Under all circumstances tr...