Abstract
Spleen cells from Rfv-3r/s mice with Friend virus-induced erythroleukemia were analyzed for expression of virus-induced proteins with monoclonal antiviral antibodies and conventional antisera. Leukemic spleen cells, 30-60 d after virus inoculation, expressed decreased amounts of ecotropic Friend murine leukemia helper virus gag- and env-encoded cell surface and intracellular proteins compared with leukemic cells tested 8-10 d after virus inoculation. In contrast, the spleen focus-forming virus-induced protein, gp55, was present on both leukemia cell populations. This difference appeared to be mediated by the humoral antibody response in Rfv-3r/s mice, which could recognize only ecotropic gag and env proteins, and not gp55. A new gp70 molecule cross-reactive with a recombinant Friend mink cell focus-inducing virus was found in large quantities on late leukemic cells. This protein appeared to be derived from a recombinant virus produced during the course of Friend virus infection. The appearance of this new gp70 suggests that recombinant viruses other than spleen focus-forming virus may play a role in Friend virus-induced erythroleukemia.
Full Text
The Full Text of this article is available as a PDF (1.3 MB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Britt W. J., Chesebro B. H-2D (Rfv-1) gene influence on recovery from Friend virus leukemia is mediated by nonleukemic cells of the spleen and bone marrow. J Exp Med. 1980 Dec 1;152(6):1795–1804. doi: 10.1084/jem.152.6.1795. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Chesebro B., Bloom M., Wehrly K., Nishio J. Persistence of infectious Friend virus in spleens of mice after spontaneous recovery from virus-induced erythroleukemia. J Virol. 1979 Dec;32(3):832–837. doi: 10.1128/jvi.32.3.832-837.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Chesebro B., Wehrly K., Doig D., Nishio J. Antibody-induced modulation of Friend virus cell surface antigens decreases virus production by persistent erythroleukemia cells: influence of the Rfv-3 gene. Proc Natl Acad Sci U S A. 1979 Nov;76(11):5784–5788. doi: 10.1073/pnas.76.11.5784. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Chesebro B., Wehrly K. Identification of a non-H-2 gene (Rfv-3) influencing recovery from viremia and leukemia induced by Friend virus complex. Proc Natl Acad Sci U S A. 1979 Jan;76(1):425–429. doi: 10.1073/pnas.76.1.425. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Chesebro B., Wehrly K. Rfv-1 and Rfv-2, two H-2-associated genes that influence recovery from Friend leukemia virus-induced splenomegaly. J Immunol. 1978 Apr;120(4):1081–1085. [PubMed] [Google Scholar]
 - Cloyd M. W., Hartley J. W., Rowe W. P. Cell-surface antigens associated with recombinant mink cell focus-inducing murine leukemia viruses. J Exp Med. 1979 Mar 1;149(3):702–712. doi: 10.1084/jem.149.3.702. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Cloyd M. W., Hartley J. W., Rowe W. P. Lymphomagenicity of recombinant mink cell focus-inducing murine leukemia viruses. J Exp Med. 1980 Mar 1;151(3):542–552. doi: 10.1084/jem.151.3.542. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Collins J. K., Britt W. J., Chesebro B. Cytotoxic T lymphocyte recognition of gp70 on Friend virus-induced erythroleukemia cell clones. J Immunol. 1980 Sep;125(3):1318–1324. [PubMed] [Google Scholar]
 - Collins J. K., Chesebro B. Spontaneous cessation of Friend murine leukemia virus production by leukemia cell line Y57: overgrowth by nonproducer cells. J Natl Cancer Inst. 1980 May;64(5):1153–1159. [PubMed] [Google Scholar]
 - Collins J. K., Chesebro B. Synthesis, processing, and cell surface expression of friend and xenotropic murine leukemia virus gp70 antigens on friend virus-induced erythroleukemia cell clones. J Immunol. 1980 Sep;125(3):1325–1331. [PubMed] [Google Scholar]
 - Del Vellano B. C., Nave B., Croker B. P., Lerner R. A., Dixon F. J. The oncornavirus glycoprotein gp69/71: a constituent of the surface of normal and malignant thymocytes. J Exp Med. 1975 Jan 1;141(1):172–187. doi: 10.1084/jem.141.1.172. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Doig D., Chesebro B. Antibody-induced loss of Friend virus leukemia cell surface antigens occurs during progression of erythroleukemia in F1 mice. J Exp Med. 1978 Nov 1;148(5):1109–1121. doi: 10.1084/jem.148.5.1109. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Evans L. H., Dresler S., Kabat D. Synthesis and glycosylation of polyprotein precursors to the internal core proteins of Friend murine leukemia virus. J Virol. 1977 Dec;24(3):865–874. doi: 10.1128/jvi.24.3.865-874.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Fujinami R. S., Oldstone M. B. Alterations in expression of measles virus polypeptides by antibody: molecular events in antibody-induced antigenic modulation. J Immunol. 1980 Jul;125(1):78–85. [PubMed] [Google Scholar]
 - Genovesi E. V., Marx P. A., Wheelock E. F. Susceptibility of Friend virus antigen-modulated erythroleukemic cells to lysis by T lymphocytes from mice with dormant Friend virus infections. J Immunol. 1979 Mar;122(3):795–800. [PubMed] [Google Scholar]
 - Hartley J. W., Rowe W. P. Clonal cells lines from a feral mouse embryo which lack host-range restrictions for murine leukemia viruses. Virology. 1975 May;65(1):128–134. doi: 10.1016/0042-6822(75)90013-6. [DOI] [PubMed] [Google Scholar]
 - Hartley J. W., Wolford N. K., Old L. J., Rowe W. P. A new class of murine leukemia virus associated with development of spontaneous lymphomas. Proc Natl Acad Sci U S A. 1977 Feb;74(2):789–792. doi: 10.1073/pnas.74.2.789. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
 - Lesley J., Hyman R., Dennert G. Effect of antigen density on complement-mediated lysis, T-cell-mediated killing, and antigenic modulation. J Natl Cancer Inst. 1974 Dec;53(6):1759–1765. [PubMed] [Google Scholar]
 - Lung M. L., Hering C., Hartley J. W., Rowe W. P., Hopkins N. Analysis of the genomes of mink cell focus-inducing murine type-C viruses: a progress report. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 2):1269–1274. doi: 10.1101/sqb.1980.044.01.138. [DOI] [PubMed] [Google Scholar]
 - MacDonald M. E., Mak T. W., Bernstein A. Erythroleukemia induction by replication-competent type C viruses cloned from the anemia- and polycythemia-inducing isolates of Friend leukemia virus. J Exp Med. 1980 Jun 1;151(6):1493–1503. doi: 10.1084/jem.151.6.1493. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - McGrath M. S., Pillemer E., Weissman I. L. Murine leukaemogenesis: monoclonal antibodies to T-cell determinants arrest T-lymphoma cell proliferation. Nature. 1980 May 22;285(5762):259–261. doi: 10.1038/285259a0. [DOI] [PubMed] [Google Scholar]
 - Pinter A., Lieman-Hurwitz J., Fleissner E. The nature of the association between the murine leukemia virus envelope proteins. Virology. 1978 Dec;91(2):345–351. doi: 10.1016/0042-6822(78)90382-3. [DOI] [PubMed] [Google Scholar]
 - Ruscetti S. K., Linemeyer D., Feild J., Troxler D., Scolnick E. M. Characterization of a protein found in cells infected with the spleen focus-forming virus that shares immunological cross-reactivity with the gp70 found in mink cell focus-inducing virus particles. J Virol. 1979 Jun;30(3):787–798. doi: 10.1128/jvi.30.3.787-798.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Schultz A. M., Rabin E. H., Oroszlan S. Post-translational modification of Rauscher leukemia virus precursor polyproteins encoded by the gag gene. J Virol. 1979 Apr;30(1):255–266. doi: 10.1128/jvi.30.1.255-266.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Troxler D. H., Boyars J. K., Parks W. P., Scolnick E. M. Friend strain of spleen focus-forming virus: a recombinant between mouse type C ecotropic viral sequences and sequences related to xenotropic virus. J Virol. 1977 May;22(2):361–372. doi: 10.1128/jvi.22.2.361-372.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Tung J. S., Vitetta E. S., Fleissner E., Boyse E. A. Biochemical evidence linking the GIX thymocyte surface antigen to the gp69/71 envelope glycoprotein of murine leukemia virus. J Exp Med. 1975 Jan 1;141(1):198–205. doi: 10.1084/jem.141.1.198. [DOI] [PMC free article] [PubMed] [Google Scholar]
 - Yagi M. J., Blair P. B., Lane M. A. Modulation of mouse mammary tumor virus production in the MJY-alpha cell line. J Virol. 1978 Nov;28(2):611–623. doi: 10.1128/jvi.28.2.611-623.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
 
