Faculty Research 1990 - 1999


Possible role of Abb gene in mouse resistance to EL4 metastases.

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Autoradiography, Base-Sequence, Disease-Susceptibility: ge, DNA, Flow-Cytometry, Gene-Expression, H-2-Antigens: ge, Lymphoma: ge, im, Mice, Mice-Inbred-C57BL, Molecular-Sequence-Data, Neoplasm-Metastasis: ge, im, Neoplasm-Transplantation, Oligonucleotide-Probes, RNA-Messenger: ge, SUPPORT-U-S-GOVT-P-H-S

JAX Source

Immunogenetics 1992;36(4):213-8


GM28017, GM40563


"S: (survivor) mutants were produced in mice for genetic analysis of host resistance to metastatic cancers. S-mutants S-27 and S-31 resist transplantation of lymphoma EL4 of parental C57BL/6J (B6) mice while they accept parental skin grafts. Mutant S-27 also resists formation of spontaneous metastases from intradermally growing EL4 tumor into lymph nodes; mutant S-31 is highly susceptible to EL4 metastases. Another mutant, H-2bm26 (bm26), resists EL4 and rejects B6 skin grafts. Major histocompatibility complex (MHC) class I and class II gene expression was compared in these mutants and normal B6 mice. All three mutants tested, S-27, S-31, and bm26, expressed a low amount of Kb mRNA in organ-specific fashion. Mutants bm26 and S-31 expressed a low amount of Abb mRNA and of Ab antigen on their spleen cells. Some oligonucleotide probes designed to hybridize to the second exon of the class II MHC gene Abb did not hybridize with DNA from all three mutants. These findings suggest extensive sequence alterations in the Abb gene in mutants S-27, S-31, and bm26; they also suggest a major role of MHC in the control of host resistance to spontaneous metastases of the EL4 tumor.

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