Generation of cytotoxic lymphocytes to syngeneic tumor by using co-stimulator (Interleukin 2)

Gordon Mills, V. Paetkau

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Cytotoxic lymphocytes (CL) highly active against the syngeneic mastocytoma, P815, were generated from spleen cells of DBA mice cultured with co-stimulator (Interleukin 2) and P815. More CL activity was generated from spleen cells of P815 tumor-bearing mice than from spleen cells of normal mice. Thymus cells from tumor-bearing mice, however, did not produce increased CL activity. Most of the CL were Thy 1 and Ly 1 positive. The optimal culture conditions and kinetics were similar to those for the generation of allogeneic cytotoxic T lymphocytes. The cytotoxic activity against syngeneic P815 was similar in magnitude to the response of DBA spleen cells to allogeneic tumor lines and to the response of allogeneic CBA spleen cells to P815. Although CL generated from tumor-bearing mice did not lyse normal DBA cells, they did lyse, to a much lesser degree, a number of tumor cell lines other than the sensitizing P815. This nonspecific lysis was not H2 restricted nor was it restricted to tumors of lymphoid origin. Generation of nonspecific cytolytic activity was antigen independent, occurring in the presence of co-stimulator alone.

Original languageEnglish (US)
Pages (from-to)1897-1903
Number of pages7
JournalJournal of Immunology
Volume125
Issue number5
StatePublished - Jan 1 1980
Externally publishedYes

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Interleukin-2
Lymphocytes
Spleen
Neoplasms
Mastocytoma
Thymus Neoplasms
Inbred DBA Mouse
Cytotoxic T-Lymphocytes
Tumor Cell Line
Antigens

ASJC Scopus subject areas

  • Immunology

Cite this

Generation of cytotoxic lymphocytes to syngeneic tumor by using co-stimulator (Interleukin 2). / Mills, Gordon; Paetkau, V.

In: Journal of Immunology, Vol. 125, No. 5, 01.01.1980, p. 1897-1903.

Research output: Contribution to journalArticle

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N2 - Cytotoxic lymphocytes (CL) highly active against the syngeneic mastocytoma, P815, were generated from spleen cells of DBA mice cultured with co-stimulator (Interleukin 2) and P815. More CL activity was generated from spleen cells of P815 tumor-bearing mice than from spleen cells of normal mice. Thymus cells from tumor-bearing mice, however, did not produce increased CL activity. Most of the CL were Thy 1 and Ly 1 positive. The optimal culture conditions and kinetics were similar to those for the generation of allogeneic cytotoxic T lymphocytes. The cytotoxic activity against syngeneic P815 was similar in magnitude to the response of DBA spleen cells to allogeneic tumor lines and to the response of allogeneic CBA spleen cells to P815. Although CL generated from tumor-bearing mice did not lyse normal DBA cells, they did lyse, to a much lesser degree, a number of tumor cell lines other than the sensitizing P815. This nonspecific lysis was not H2 restricted nor was it restricted to tumors of lymphoid origin. Generation of nonspecific cytolytic activity was antigen independent, occurring in the presence of co-stimulator alone.

AB - Cytotoxic lymphocytes (CL) highly active against the syngeneic mastocytoma, P815, were generated from spleen cells of DBA mice cultured with co-stimulator (Interleukin 2) and P815. More CL activity was generated from spleen cells of P815 tumor-bearing mice than from spleen cells of normal mice. Thymus cells from tumor-bearing mice, however, did not produce increased CL activity. Most of the CL were Thy 1 and Ly 1 positive. The optimal culture conditions and kinetics were similar to those for the generation of allogeneic cytotoxic T lymphocytes. The cytotoxic activity against syngeneic P815 was similar in magnitude to the response of DBA spleen cells to allogeneic tumor lines and to the response of allogeneic CBA spleen cells to P815. Although CL generated from tumor-bearing mice did not lyse normal DBA cells, they did lyse, to a much lesser degree, a number of tumor cell lines other than the sensitizing P815. This nonspecific lysis was not H2 restricted nor was it restricted to tumors of lymphoid origin. Generation of nonspecific cytolytic activity was antigen independent, occurring in the presence of co-stimulator alone.

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