Properties of reticulum cell sarcomas in SJL/J mice. V. Nature of reticulum cell sarcoma surface antigen which induces proliferation of normal SJL/J T cells

N. M. Ponzio, C. S. David, D. C. Shreffler, G. J. Thorbecke

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Abstract

The results of studies on the reticulum cell sarcoma (RCS) tumors of SJL/J mice presented here, indicate that spontaneous tumors, which arise in older mice, also possess the capacity to induce the vigorous proliferative response in syngeneic T lymphocytes that are characteristic of the transplantable RCS lines. Analysis of cell surface antigens revealed the presence of Ia determinants on gradient-purified transplantable RCS tumor cells; however, these cells did not express Thy 1.2, Ig, or any of the viral proteins that were tested for by specific antisera. Pretreatment of RCS cells with anti-Ia sera and complement-deleted cells that were stimulatory for syngeneic T lymphocytes, and addition of anti-Ia sera directly to cultures blocked the proliferative response at the stimulator (RCS) cell level. Lymph node cells from H-2(s) strains other than SJL/J, including A.SW and B10.S also gave proliferative responses to RCS cells, although lower in magnitude. A requirement on the part of responding cells for identity with RCS cells at the Ir region was indicated by the finding that A.TH but not A.TL lymph node cells responded to RCS. It is concluded that RCS cells stimulate Ir-region identical T cells (without evidence of presensitization) through a modification in the expression of Ia antigens on the surface of the tumor cells.

Original languageEnglish (US)
Pages (from-to)132-145
Number of pages14
JournalJournal of Experimental Medicine
Volume146
Issue number1
StatePublished - 1977
Externally publishedYes

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Surface Antigens
Non-Hodgkin's Lymphoma
T-Lymphocytes
Neoplasms
Lymph Nodes
Histocompatibility Antigens Class II
Viral Proteins
Serum
Immune Sera
Cell Line

ASJC Scopus subject areas

  • Immunology

Cite this

Properties of reticulum cell sarcomas in SJL/J mice. V. Nature of reticulum cell sarcoma surface antigen which induces proliferation of normal SJL/J T cells. / Ponzio, N. M.; David, C. S.; Shreffler, D. C.; Thorbecke, G. J.

In: Journal of Experimental Medicine, Vol. 146, No. 1, 1977, p. 132-145.

Research output: Contribution to journalArticle

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abstract = "The results of studies on the reticulum cell sarcoma (RCS) tumors of SJL/J mice presented here, indicate that spontaneous tumors, which arise in older mice, also possess the capacity to induce the vigorous proliferative response in syngeneic T lymphocytes that are characteristic of the transplantable RCS lines. Analysis of cell surface antigens revealed the presence of Ia determinants on gradient-purified transplantable RCS tumor cells; however, these cells did not express Thy 1.2, Ig, or any of the viral proteins that were tested for by specific antisera. Pretreatment of RCS cells with anti-Ia sera and complement-deleted cells that were stimulatory for syngeneic T lymphocytes, and addition of anti-Ia sera directly to cultures blocked the proliferative response at the stimulator (RCS) cell level. Lymph node cells from H-2(s) strains other than SJL/J, including A.SW and B10.S also gave proliferative responses to RCS cells, although lower in magnitude. A requirement on the part of responding cells for identity with RCS cells at the Ir region was indicated by the finding that A.TH but not A.TL lymph node cells responded to RCS. It is concluded that RCS cells stimulate Ir-region identical T cells (without evidence of presensitization) through a modification in the expression of Ia antigens on the surface of the tumor cells.",
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AU - Thorbecke, G. J.

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AB - The results of studies on the reticulum cell sarcoma (RCS) tumors of SJL/J mice presented here, indicate that spontaneous tumors, which arise in older mice, also possess the capacity to induce the vigorous proliferative response in syngeneic T lymphocytes that are characteristic of the transplantable RCS lines. Analysis of cell surface antigens revealed the presence of Ia determinants on gradient-purified transplantable RCS tumor cells; however, these cells did not express Thy 1.2, Ig, or any of the viral proteins that were tested for by specific antisera. Pretreatment of RCS cells with anti-Ia sera and complement-deleted cells that were stimulatory for syngeneic T lymphocytes, and addition of anti-Ia sera directly to cultures blocked the proliferative response at the stimulator (RCS) cell level. Lymph node cells from H-2(s) strains other than SJL/J, including A.SW and B10.S also gave proliferative responses to RCS cells, although lower in magnitude. A requirement on the part of responding cells for identity with RCS cells at the Ir region was indicated by the finding that A.TH but not A.TL lymph node cells responded to RCS. It is concluded that RCS cells stimulate Ir-region identical T cells (without evidence of presensitization) through a modification in the expression of Ia antigens on the surface of the tumor cells.

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