251
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Hehlmann R, Goldfeder A, Spiegelman S. RNA tumor viruses present in growing and absent in regressing mammary tumors of mice. J Natl Cancer Inst 1974; 52:49-61. [PMID: 4129834 DOI: 10.1093/jnci/52.1.49] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
MESH Headings
- Adenofibroma/chemically induced
- Adenofibroma/enzymology
- Adenofibroma/microbiology
- Animals
- Centrifugation, Density Gradient
- Female
- Mammary Neoplasms, Experimental/chemically induced
- Mammary Neoplasms, Experimental/enzymology
- Mammary Neoplasms, Experimental/microbiology
- Mammary Tumor Virus, Mouse/isolation & purification
- Mice
- Mice, Inbred DBA
- Mice, Inbred Strains
- Microscopy, Electron
- Neoplasm Regression, Spontaneous
- Neoplasm Transplantation
- Nucleic Acid Hybridization
- RNA Viruses/analysis
- RNA Viruses/enzymology
- RNA Viruses/isolation & purification
- RNA, Viral/analysis
- RNA-Directed DNA Polymerase/analysis
- Transplantation, Homologous
- Urethane
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252
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Parks WP, Scolnick EM, Ransom JC. Glucocorticoid induction of murine mammary tumor virus in vitro. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 1974; 39 Pt 2:1151-8. [PMID: 169017 DOI: 10.1101/sqb.1974.039.01.132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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253
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Yagi MJ. Cultivation and characterization of BALB-cfC3H mammary tumor cell lines. J Natl Cancer Inst 1973; 51:1849-60. [PMID: 4358145 DOI: 10.1093/jnci/51.6.1849] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
MESH Headings
- Adenocarcinoma/immunology
- Adenocarcinoma/microbiology
- Adenocarcinoma/pathology
- Animals
- Antigens, Viral/analysis
- Cell Line
- Cell Membrane/immunology
- Cytoplasm/immunology
- Female
- Fluorescent Antibody Technique
- Immunodiffusion
- Leukemia Virus, Murine/immunology
- Leukemia Virus, Murine/isolation & purification
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/microbiology
- Mammary Neoplasms, Experimental/pathology
- Mammary Tumor Virus, Mouse/immunology
- Mammary Tumor Virus, Mouse/isolation & purification
- Mice
- Mice, Inbred Strains
- Microscopy, Electron
- Neoplasm Transplantation
- Sarcoma, Experimental/etiology
- Transplantation, Homologous
- Tritium
- Uridine/metabolism
- Virus Replication
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254
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Hiraki S, Van Pelt RW, Dmochowski L. Preliminary electron microscope study on virus-like particles in a spontaneous mammary tumor of collared lemming. Cancer Res 1973; 33:3159-64. [PMID: 4760531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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255
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Varmus HE, Quintrell N, Medeiros E, Bishop JM, Nowinski RC, Sarkar NH. Transcription of mouse mammary tumor virus genes in tissues from high and low tumor incidence mouse strains. J Mol Biol 1973; 79:663-79. [PMID: 4357097 DOI: 10.1016/0022-2836(73)90070-3] [Citation(s) in RCA: 125] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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256
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Keydar J, Gilead Z, Hartman JR, Ben-Shaul Y. In vitro production of mouse mammary tumor virus in a mouse mammary tumor ascites line. Proc Natl Acad Sci U S A 1973; 70:2983-7. [PMID: 4126729 PMCID: PMC427152 DOI: 10.1073/pnas.70.10.2983] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
An ascites line derived from a spontaneous mouse mammary carcinoma produces, on explantation and cultivation in vitro, large amounts of oncornavirus particles. The biochemical, biophysical, and electron microscopic characteristics of the virions are described. Molecular hybridization and immunological methods identify these virions as mouse mammary tumor virus.
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MESH Headings
- Animals
- Antigens, Viral/analysis
- Ascitic Fluid
- Cell Line
- Centrifugation, Density Gradient
- Complement Fixation Tests
- DNA, Viral/analysis
- DNA, Viral/biosynthesis
- Mammary Neoplasms, Experimental/microbiology
- Mammary Tumor Virus, Mouse/immunology
- Mammary Tumor Virus, Mouse/isolation & purification
- Mice
- Microscopy, Electron
- Neoplasm Transplantation
- Nucleic Acid Hybridization
- Polynucleotides
- RNA
- RNA, Viral/analysis
- RNA-Directed DNA Polymerase/metabolism
- Templates, Genetic
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257
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Peters RL, Spahn GJ, Rabstein LS, Kelloff GJ, Huebner RJ. Murine C-type RNA virus from spontaneous neoplasms: in vitro host range and oncogenic potential. Science 1973; 181:665-7. [PMID: 4353359 DOI: 10.1126/science.181.4100.665] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Strain BALB/c mice harbor at least two host range variants of marine leukemia virus. One variant, which is host-cell tropic, is the predominant isolate from neoplastic tissues and produced lymphoreticular neoplasms when injected into BALB/c newborn mice. A second variant, whicht is isolated throughout life, grows poorly in host embryonic cells in culture and was not associated with lymphoreticular neoplasm induction when injected into newborn BALB/c mice.
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MESH Headings
- Animals
- Antigens, Viral/analysis
- Carcinoma/microbiology
- Cell Line
- Embryo, Mammalian
- Hemangioendothelioma/microbiology
- Leukemia Virus, Murine/immunology
- Leukemia Virus, Murine/isolation & purification
- Leukemia, Experimental/etiology
- Leukemia, Experimental/microbiology
- Lymphoma, Large B-Cell, Diffuse/etiology
- Lymphoma, Large B-Cell, Diffuse/microbiology
- Lymphoma, Non-Hodgkin/etiology
- Lymphoma, Non-Hodgkin/microbiology
- Mammary Neoplasms, Experimental/microbiology
- Mice
- Mice, Inbred BALB C
- Myoepithelioma/microbiology
- Retroviridae/isolation & purification
- Sarcoma, Experimental/microbiology
- Spleen/microbiology
- Virus Replication
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258
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Peters RL, Spahn GJ, Rabstein LS, Kelloff GJ, Huebner RJ. Oncogenic potential of murine C-type RNA virus passaged directly from naturally occurring tumors of the BALB-cCr mouse. J Natl Cancer Inst 1973; 51:621-30. [PMID: 4358138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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259
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Peters RL, Spahn GJ, Rabstein LS, Kelloff GJ, Huebner RJ. Neoplasm induction by murine type-C viruses passaged directly from spontaneous non-lymphoreticular tumours. NATURE: NEW BIOLOGY 1973; 244:103-5. [PMID: 4352640 DOI: 10.1038/newbio244103a0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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260
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Rongey RW, Hlavackova A, Lara S, Estes J, Gardner MB. Types B and C RNA virus in breast tissue and milk of wild mice. J Natl Cancer Inst 1973; 50:1581-9. [PMID: 4352204 DOI: 10.1093/jnci/50.6.1581] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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261
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Chopra H, Ebert P, Woodside N, Kvedar J, Albert S, Brennan M. Electron microscopic detection of simian-type virus particles in human milk. NATURE: NEW BIOLOGY 1973; 243:159-60. [PMID: 4352476 DOI: 10.1038/newbio243159a0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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262
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Abstract
A rapid method for the isolation of intracytoplasmic A particles, the putative intracellular nucleoprotein cores of mouse mammary tumor virus (MTV), is presented. Spontaneous C3H/He mouse mammary tumors and transplantable mouse Leydig cell tumor were used as source material. Large aggregations of intracytoplasmic A particles were separated from cellular contaminants on discontinuous sucrose gradients and subsequently further purified by isopycnic banding in linear sucrose gradients. The purified particles were solubilized in sodium dodecyl sulfate, and the structural proteins were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Purified mouse mammary tumor virions were solubilized, and their proteins were analyzed in the same way. Comparison of co-electrophoretic gels indicated a lack of correlation in the molecular size of the major structural proteins in intracytoplasmic A particles and MTV. The three major proteins of the A particles were calculated to be 80,000; 35,000; and 20,000 daltons. Five major polyacrylamide gel electrophoresis bands were obtained with purified MTV; these were 90,000; 69,000; 55,000; 37,000; and 27,500 daltons. These figures showed good correlation with those published for MTV by Nowinski et al. These results suggest the need for the reexamination of the current tenet that intracytoplasmic particles represent intracellular MTV nucleoprotein cores.
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263
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Domina F, Gimbo A, Licata A. The finding of viral particles in spontaneous mammary adenocarcinoma in rats. EXPERIENTIA 1973; 29:200-1. [PMID: 4348194 DOI: 10.1007/bf01945475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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264
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265
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Goldfeder A. Electron microscopic study of neoplasms induced by urethan and x-rays in X-Gf mice. Cancer Res 1972; 32:2778-92. [PMID: 4345405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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266
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Owens RB, Hackett AJ. Tissue culture studies of mouse mammary tumor cells and associated viruses. J Natl Cancer Inst 1972; 49:1321-32. [PMID: 4346536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
MESH Headings
- Animals
- Antigens, Neoplasm
- Antigens, Viral
- Cell Line
- Cell Transformation, Neoplastic
- Culture Techniques
- Epithelial Cells
- Female
- Inclusion Bodies, Viral
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/microbiology
- Mammary Tumor Virus, Mouse/immunology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C3H
- Microscopy, Electron
- Neoplasm Transplantation
- Oncogenic Viruses
- Retroviridae
- Transplantation, Autologous
- Virus Cultivation
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267
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Hui YH, DeOme KB, Briggs GM. Influence of dietary phenylalanine deficiency on the mammary tumor virus activity in C3H mice. Cancer Res 1972; 32:2086-8. [PMID: 4343007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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268
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Gulati SC, Axel R, Spiegelman S. Detection of RNA-instructed DNA polymerase and high molecular weight RNA in malignant tissue. Proc Natl Acad Sci U S A 1972; 69:2020-4. [PMID: 4340747 PMCID: PMC426859 DOI: 10.1073/pnas.69.8.2020] [Citation(s) in RCA: 43] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
An experimental procedure is detailed that permits the detection of 70S RNA-directed DNA synthesis in mouse mammary carcinomas. The DNA synthesized is complementary to the RNA of the mouse mammary tumor virus by molecular hybridization, thus, completing the proof that an RNA-instructed DNA polymerase has been identified. Further, RNA-instructed DNA polymerase and its 70S RNA template are physically associated in a particle that has a density characteristic of oncornaviruses. These experiments now provide the technology required to perform similar examinations of human neoplasias.
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269
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Tanaka H, Tamura A, Tsujimura D. Properties of the intracytoplasmic A particles purified from mouse tumors. Virology 1972; 49:61-78. [PMID: 4114180 DOI: 10.1016/s0042-6822(72)80007-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
MESH Headings
- Animals
- Antigens, Viral/analysis
- Centrifugation, Density Gradient
- Cytoplasm/microbiology
- Female
- Gammaretrovirus/analysis
- Gammaretrovirus/immunology
- Gammaretrovirus/isolation & purification
- Immunodiffusion
- Immunoelectrophoresis
- Inclusion Bodies, Viral
- Leukemia, Experimental/immunology
- Leukemia, Experimental/microbiology
- Leukemia, Experimental/pathology
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/microbiology
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Inbred Strains
- Microscopy, Electron
- Phosphotungstic Acid
- RNA, Viral/analysis
- Staining and Labeling
- Viral Proteins/analysis
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270
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Schäfer W. [Oncogenic viruses--a review]. ZENTRALBLATT FUR BAKTERIOLOGIE, PARASITENKUNDE, INFEKTIONSKRANKHEITEN UND HYGIENE. ERSTE ABTEILUNG ORIGINALE. REIHE A: MEDIZINISCHE MIKROBIOLOGIE UND PARASITOLOGIE 1972; 220:3-26. [PMID: 4145610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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271
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Hollmann KH. [Is the breast carcinoma of the female caused by a virus?]. Dtsch Med Wochenschr 1972; 97:620-6 passim. [PMID: 4114024 DOI: 10.1055/s-0028-1107410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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272
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Mouriquand J, Mouriquand C, Mistry P, Gorka C. [Radioresistance of the murine mammary tumor virus subjected to gamma irradiation]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1972; 274:2259-62. [PMID: 4339979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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273
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Ahmed M, Korol W, Larson D, Molnar H, Schidlovsky G. Transformation of rat mammary cell cultures by R-35 virus isolated from spontaneous rat mammary adenocarcinoma. J Natl Cancer Inst 1972; 48:1077-83. [PMID: 4336870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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274
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Chopra HC, Oie HK. Possible etiological role of virus particles detected in rat and monkey mammary tumors. J Natl Cancer Inst 1972; 48:1059-65. [PMID: 4336869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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275
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Hollmann KH. [Immunology of mammary tumors]. ANNALES DE L'INSTITUT PASTEUR 1972; 122:809-18. [PMID: 4340547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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276
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277
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Nandi S, Haslam S, Helmich C. Cell-associated mammary tumor virus in blood of BALB-cfC3H mice. J Natl Cancer Inst 1972; 48:1085-8. [PMID: 4336871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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278
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McGrath CM, Nandi S, Young L. Relationship between organization of mammary tumors and the ability of tumor cells to replicate mammary tumor virus and to recognize growth-inhibitory contact signals in vitro. J Virol 1972; 9:367-76. [PMID: 4335525 PMCID: PMC356303 DOI: 10.1128/jvi.9.2.367-376.1972] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Mammary tumor virus (MTV) replication was confined primarily to cells organized as acini in intact mouse mammary glands. Primary mammary tumors maintained a high degree of acinar organization and cells therein continued to replicate MTV vegetatively. Nonacinar mammary cells, derived by serial transplantation of acinar tumor cells, no longer actively replicated MTV. This suggests that phenotypic differences exist among mammary epithelial cells in their ability to support virus replication, that a fundamental relationship exists between the organization of epithelium for secretion and active virus replication, and that this relationship is not altered as a primary consequence of neoplastic transformation. Mammary epithelial cells from pregnant, non-tumor-bearing, MTV-infected BALB/cfC3H mice or from acinar mammary tumors from a number of mouse strains were grown in primary monolayer cultures. Such cell cultures under the influence of insulin and cortisol exhibited the ability to organize into discrete three-dimensional structures called "domes." MTV replication in such cultures took place primarily in cells within the organized domes. Cells cultured from nonacinar tumors did not exhibit any propensity to organize into domes, nor did they replicate MTV in primary culture. This suggests that the cell organizational requirement for MTV replication observed in vivo is conserved in primary culture. Dome formation is not an effect of virus replication, as cells from uninfected BALB/c animals organized into domes in culture without concomitant MTV replication. Growth-regulating signals, exerted between contiguous cells in cultures of non-MTV-infected mammary epithelium, were not modified by the occurrence of active virus replication nor as a direct consequence of neoplastic transformation. Cells derived from nontumor BALB/cfC3H glands and from spontaneous tumors exhibited cell growth kinetics, saturation densities, and deoxyribonucleic acid synthesis kinetics nearly identical to those of noninfected normal mammary epithelium in primary culture. Cell to cell growth regulatory signals were modified in cultures of nonalveolar tumor cells wherein evidence of overgrowth is documented.
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MESH Headings
- Animals
- Cell Count
- Cell Transformation, Neoplastic
- Cells, Cultured/drug effects
- Cells, Cultured/microbiology
- DNA/biosynthesis
- Epithelium/microbiology
- Female
- Hydrocortisone/pharmacology
- Insulin/pharmacology
- Kinetics
- Mammary Glands, Animal/microbiology
- Mammary Neoplasms, Experimental/classification
- Mammary Neoplasms, Experimental/microbiology
- Mammary Neoplasms, Experimental/pathology
- Mammary Tumor Virus, Mouse/growth & development
- Methods
- Mice
- Mice, Inbred Strains
- Microscopy, Electron
- Neoplasm Transplantation
- Phenotype
- Pregnancy
- Thymidine/metabolism
- Tritium
- Uridine/metabolism
- Virus Replication
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279
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Tan WC, Sebesteny A. Spontaneous mammary tumours in SPF C3H-A vy mice: formation of virus structures. Lab Anim 1972; 6:1-7. [PMID: 4336249 DOI: 10.1258/002367772781082712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Spontaneous mammary tumours developed in specific-pathogen-free C3H/Avy female mice. Virus particles in the tumour cells were predominantly intracytoplasmic A-type particles, presumably the result of vertical transmission. Structural interactions between A particles and some diffuse bodies were observed. The emergence of a new type of particle with a composite structure was noted. No B-type virus particles were detected.
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280
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Hollmann KH, Verley JM. [The viral problem in mammary tumors]. PATHOLOGIE-BIOLOGIE 1972; 20:83-103. [PMID: 4335126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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281
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Lasfargues EY, Kramarsky B, Sarkar NH, Lasfargues JC, Moore DH. An established R3 mouse mammary tumor cell line; kinetics of mammary tumor virus (MTV) production. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1972; 139:242-7. [PMID: 4332331 DOI: 10.3181/00379727-139-36119] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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282
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Thomas JA, Hollande E, Henry M, Vilain C. [Concept of the morphological evolution and mechanisms of transmission of mammary cancer virus: attempted generalization]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1971; 273:2390-3. [PMID: 4333760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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283
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Shigematsu T, Dmochowski L, Williams WC. Studies on mouse mammary tumor virus (MTV) and mouse leukemia virus (MuLV) by immunoelectron microscopy. Cancer Res 1971; 31:2085-97. [PMID: 4330440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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284
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Thomas JA, Hollande E, Henry M, Vilain C. [Penetration by mature particles of mammary cancer virus in producing cells, in vivo]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1971; 273:188-91. [PMID: 4333132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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285
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Thomas JA, Lambré C, Henry M. [Increase and modification of the carcinogenic power of mammary tumors virus, after treatment with ethylene oxide; distribution of viral particles]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1971; 273:1650-3. [PMID: 4333066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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286
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McGrath CM. Replication of mammary tumor virus in tumor cell cultures: dependence on hormone-induced cellular organization. J Natl Cancer Inst 1971; 47:455-67. [PMID: 4326936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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287
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Nowinski RC, Edynak E, Sarkar NH. Serological and structural properties of Mason-Pfizer monkey virus isolated from the mammary tumor of a Rhesus monkey. Proc Natl Acad Sci U S A 1971; 68:1608-12. [PMID: 4997759 PMCID: PMC389251 DOI: 10.1073/pnas.68.7.1608] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
We describe here serological and structural properties of a virus, Mason-Pfizer Monkey Virus (M-PMV), isolated from a simian mammary tumor. This virus is morphologically similar to the known oncogenic RNA viruses (oncornaviruses). It has a 60-70S RNA, and its replication is inhibited by actinomycin. Antisera prepared against the virus isolated by density-gradient centrifugation identify at least two viral structural antigens. Immunodiffusion studies show that this virus is serologically unrelated to three types of simian foamy viruses, visna virus, and the known oncornaviruses. Immunofluorescence reveals that the structural proteins of the virus are synthesized cytoplasmically. Although M-PMV productively infects human cells in vitro, serological analysis does not show the presence of M-PMV antigens in human neoplasia.
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288
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Nandi S, Haslam S, Helmich C, Ritter RI. Nodule bioassay of the mouse mammary tumor virus: modifications and quantitative considerations. J Natl Cancer Inst 1971; 46:1309-15. [PMID: 4325935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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289
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Ahmed M, Mayyasi SA, Chopra HC, Zelljadt I, Jensen EM. Mason-Pfizer monkey virus isolated from spontaneous mammary carcinoma of a female monkey. I. Detection of virus antigens by immunodiffusion, immunofluorescent, and virus agglutination techniques. J Natl Cancer Inst 1971; 46:1325-34. [PMID: 4996663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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290
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Nandi S, Haslam S, Aldrich CD. Antigenically distinct forms of mammary tumor virus in blood and mammary tissues of mice. J Natl Cancer Inst 1971; 46:1035-44. [PMID: 4333722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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291
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Nandi S. Possibility of a DNA-containing mammary tumour virus in red blood cells of mouse. NATURE: NEW BIOLOGY 1971; 230:146-7. [PMID: 4323759 DOI: 10.1038/newbio230146a0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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292
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Chopra HC, Zelljadt I, Jensen EM, Mason MM, Woodside NJ. Infectivity of cell cultures by a virus isolated from a mammary carcinoma of a rhesus monkey. J Natl Cancer Inst 1971; 46:127-37. [PMID: 4100556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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293
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Guest GB, Lin PS, Stock ND, Dutcher RM, Engle GC. Comparative studies on monolayer and suspension cell cultures from a transplantable rat mammary carcinoma containing C-tye virus particles. Oncology 1971; 25:104-18. [PMID: 4112478 DOI: 10.1159/000224562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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294
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MESH Headings
- Animals
- Bacteria/classification
- Bacteria/isolation & purification
- Bacteria/pathogenicity
- Carcinoma, Hepatocellular/microbiology
- Carcinoma, Squamous Cell/microbiology
- Cell Transformation, Neoplastic
- Cell Wall
- Corynebacterium/classification
- Culture Techniques
- Dysgerminoma/microbiology
- Female
- Inclusion Bodies
- Leukemia, Experimental/microbiology
- Liver Neoplasms/microbiology
- Lung Neoplasms/microbiology
- Lymphoma/microbiology
- Male
- Mammary Neoplasms, Experimental/microbiology
- Mice
- Mycobacterium/classification
- Neoplasm Transplantation
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/microbiology
- Sarcoma, Experimental/immunology
- Sarcoma, Experimental/microbiology
- Transplantation, Homologous
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295
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Jensen EM, Zelljadt I, Chopra HC, Mason MM. Isolation and propagation of a virus from a spontaneous mammary carcinoma of a rhesus monkey. Cancer Res 1970; 30:2388-93. [PMID: 4990901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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296
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Chopra HC, Bogden AE, Zelljadt I, Jensen EM. Virus particles in a transplantable rat mammary tumor of spontaneous origin. Eur J Cancer 1970; 6:287-90. [PMID: 5485264 DOI: 10.1016/0014-2964(70)90092-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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297
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298
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McGrath CM, Blair PB. Immunofluorescent localization of mammary tumor virus antigens in mammary tumor cells in culture. Cancer Res 1970; 30:1963-8. [PMID: 4195484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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299
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Abstract
The morphogenesis of Bittner virus (mouse mammary tumor virus) was studied in sectioned mammary tumor cells. Internal components of the virus (type A particles) were seen being assembled in virus factories close to the nucleus and were also seen forming at the plasma membrane. The particles in virus factories became enveloped by budding through the membrane of cytoplasmic vacuoles which were derived from dilated endoplasmic reticulum. Complete virus particles were liberated from these vacuoles by cell lysis. Particles budding at the plasma membrane were released into intercellular spaces. Maturation of enveloped virus occurred after release, but mature internal components were rarely seen in the cytoplasm before envelopment. Direct cell-to-cell transfer of virus by pinocytosis of budding particles by an adjacent cell was observed, and unusual forms of budding virus which participated in this process are illustrated and described. There was evidence that some virus particles contained cytoplasmic constituents, including ribosomes. Certain features of the structure of internal components are discussed in relation to a recently proposed model for the internal component of the mouse leukemia virus. Intracisternal virus-like particles were occasionally seen in tumor cells, but there was no evidence that these structures were developmentally related to Bittner virus.
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300
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Chopra H, Taylor DJ. Virus particles in rat mammary tumors of varying origin. J Natl Cancer Inst 1970; 44:1141-7. [PMID: 4328186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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