Endogenous retroviruses lead to the expression of a histocompatibility antigen detectable by skin graft rejection

M. P. Colombo, R. Jaenisch, P. J. Wettstein

Research output: Contribution to journalArticle

Abstract

Mov mouse strains differ from their respective, coisogenic partner strains by the embryonic, germ-line introduction of Moloney murine leukemia virus genomes. The possibility that retroviral insertions into the mouse genome resulted in gain or loss mutations at non-H-2 histocompatibility loci was investigated by reciprocal skin grafting between Mov mice and mice from coisogenic, background strains. Two B6-derived and eight 129-derived Mov strains were analyzed. B6 mice rejected skin from the viremic Mov-3 and Mov-14 strains, indicating that these mice had new histocompatibility antigens. No rejections were observed with reciprocal skin grafts exchanged between mice of the 129 background strain and 129-derived Mov strains, one of which (Mov-9) is viremic. To investigate the potential viral origin of the new histocompatibility antigen in Mov-14, lymphocytes from B6 mice primed in vivo with Mov-14 cells or skin were restimulated in vitro with Mov-14 spleen cells and with two retroviral-induced B6 lymphomas, MBL-2 and RBL-5. All three cells types stimulated cytotoxic lymphocytes that lysed Mov-14 Con A lymphoblasts, MBL-2 and RBL-5. The same cytotoxic lymphocytes lysed only lymphoblasts from the viremic Mov-9 strain when tested on cells from 129 and 129 Mov mice. Thus the insertion and expression of exogenous Moloney murine leukemia virus results in the appearance of a new histocompatibility antigen as defined by its stimulation of skin-graft rejection and cytotoxic effector T-cell generation. The non-H-2 histocompatibility antigen identified in this study has been designated H-43 and is encoded by genes mapping to different loci in different Mov strains. These observations suggest that at least a subgroup of non-H-2 histocompatibility antigens is encoded by endogenous retroviruses; the implications of these results for understanding the origin and the identify of non-H-2 histocompatibility antigens are discussed.

Original languageEnglish
Pages (from-to)189-193
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume84
Issue number1
Publication statusPublished - 1987

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Endogenous Retroviruses
Histocompatibility Antigens
Graft Rejection
Skin
129 Strain Mouse
Moloney murine leukemia virus
Lymphocytes
Genome
Skin Transplantation
Histocompatibility
Chromosome Mapping
Germ Cells
Lymphoma
Spleen
T-Lymphocytes
Transplants
Mutation

ASJC Scopus subject areas

  • General
  • Genetics

Cite this

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title = "Endogenous retroviruses lead to the expression of a histocompatibility antigen detectable by skin graft rejection",
abstract = "Mov mouse strains differ from their respective, coisogenic partner strains by the embryonic, germ-line introduction of Moloney murine leukemia virus genomes. The possibility that retroviral insertions into the mouse genome resulted in gain or loss mutations at non-H-2 histocompatibility loci was investigated by reciprocal skin grafting between Mov mice and mice from coisogenic, background strains. Two B6-derived and eight 129-derived Mov strains were analyzed. B6 mice rejected skin from the viremic Mov-3 and Mov-14 strains, indicating that these mice had new histocompatibility antigens. No rejections were observed with reciprocal skin grafts exchanged between mice of the 129 background strain and 129-derived Mov strains, one of which (Mov-9) is viremic. To investigate the potential viral origin of the new histocompatibility antigen in Mov-14, lymphocytes from B6 mice primed in vivo with Mov-14 cells or skin were restimulated in vitro with Mov-14 spleen cells and with two retroviral-induced B6 lymphomas, MBL-2 and RBL-5. All three cells types stimulated cytotoxic lymphocytes that lysed Mov-14 Con A lymphoblasts, MBL-2 and RBL-5. The same cytotoxic lymphocytes lysed only lymphoblasts from the viremic Mov-9 strain when tested on cells from 129 and 129 Mov mice. Thus the insertion and expression of exogenous Moloney murine leukemia virus results in the appearance of a new histocompatibility antigen as defined by its stimulation of skin-graft rejection and cytotoxic effector T-cell generation. The non-H-2 histocompatibility antigen identified in this study has been designated H-43 and is encoded by genes mapping to different loci in different Mov strains. These observations suggest that at least a subgroup of non-H-2 histocompatibility antigens is encoded by endogenous retroviruses; the implications of these results for understanding the origin and the identify of non-H-2 histocompatibility antigens are discussed.",
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AU - Jaenisch, R.

AU - Wettstein, P. J.

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N2 - Mov mouse strains differ from their respective, coisogenic partner strains by the embryonic, germ-line introduction of Moloney murine leukemia virus genomes. The possibility that retroviral insertions into the mouse genome resulted in gain or loss mutations at non-H-2 histocompatibility loci was investigated by reciprocal skin grafting between Mov mice and mice from coisogenic, background strains. Two B6-derived and eight 129-derived Mov strains were analyzed. B6 mice rejected skin from the viremic Mov-3 and Mov-14 strains, indicating that these mice had new histocompatibility antigens. No rejections were observed with reciprocal skin grafts exchanged between mice of the 129 background strain and 129-derived Mov strains, one of which (Mov-9) is viremic. To investigate the potential viral origin of the new histocompatibility antigen in Mov-14, lymphocytes from B6 mice primed in vivo with Mov-14 cells or skin were restimulated in vitro with Mov-14 spleen cells and with two retroviral-induced B6 lymphomas, MBL-2 and RBL-5. All three cells types stimulated cytotoxic lymphocytes that lysed Mov-14 Con A lymphoblasts, MBL-2 and RBL-5. The same cytotoxic lymphocytes lysed only lymphoblasts from the viremic Mov-9 strain when tested on cells from 129 and 129 Mov mice. Thus the insertion and expression of exogenous Moloney murine leukemia virus results in the appearance of a new histocompatibility antigen as defined by its stimulation of skin-graft rejection and cytotoxic effector T-cell generation. The non-H-2 histocompatibility antigen identified in this study has been designated H-43 and is encoded by genes mapping to different loci in different Mov strains. These observations suggest that at least a subgroup of non-H-2 histocompatibility antigens is encoded by endogenous retroviruses; the implications of these results for understanding the origin and the identify of non-H-2 histocompatibility antigens are discussed.

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