1
|
Feldman LA, Melnick JL, Rapp F. Influence of SV40 Genome on the Replication of an Adenovirus-SV40 "Hybrid" Population. J Bacteriol 2006; 90:778-82. [PMID: 16562080 PMCID: PMC315724 DOI: 10.1128/jb.90.3.778-782.1965] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Feldman, L. A. (Baylor University College of Medicine, Houston, Tex.), J. L. Melnick, and F. Rapp. Influence of SV40 genome on the replication of an adenovirus-SV40 "hybrid" population. J. Bacteriol. 90:778-782. 1965.-Replication of a type 7 adenovirus-SV40 hybrid population in primary African green monkey kidney cells was accompanied by the formation of SV40 tumor antigen, adenovirus antigens, and cytopathic changes characteristic of adenovirus infection. Prior infection of the cultures with SV40 stimulated replication of nonintegrated adenovirus 7 but did not enhance the replication of the hybrid virus. These results suggest that the population of the adenovirus-SV40 hybrid studied contains many particles carrying SV40 information. Replication of SV40 virus was not enhanced by co-infection with nonintegrated adenovirus 7 or with the adenovirus-SV40 hybrid. Cytosine arabinoside strongly inhibited replication of the adenovirus-SV40 hybrid population in African green monkey kidney cells. Enhanced replication of nonintegrated adenovirus 7 by SV40 was blocked by cytosine arabinoside; this block could be reversed by 2-deoxycytidine or deoxycytidine triphosphate.
Collapse
Affiliation(s)
- L A Feldman
- Department of Virology and Epidemiology, Baylor University College of Medicine, Houston, Texas
| | | | | |
Collapse
|
2
|
RAPP F, BUTEL JS, FELDMAN LA, KITAHARA T, MELNICK JL. DIFFERENTIAL EFFECTS OF INHIBITORS ON THE STEPS LEADING TO THE FORMATION OF SV40 TUMOR AND VIRUS ANTIGENS. ACTA ACUST UNITED AC 1996; 121:935-44. [PMID: 14319408 PMCID: PMC2138018 DOI: 10.1084/jem.121.6.935] [Citation(s) in RCA: 111] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The effect of DNA antagonists and various antibiotics on steps in the synthesis of SV40 virus in green monkey kidney cells was investigated. Both the early forming tumor (T) antigen, as well as the later synthesized virus (V) antigen, were synthesized in the presence of fluorouracil and iododeoxyuridine. Cytosine arabinoside (and fluorodeoxyuridine in starved cells) prevented synthesis of V antigen but not T antigen. The synthesis of T antigen therefore does not require synthesis of virus DNA. Virus particles formed only in the presence of the iododeoxyuridine and they were non-infectious. Actinomycin D inhibited synthesis of both tumor and virus antigens, suggesting that the synthesis of these antigens involves DNA-dependent RNA. Puromycin allowed synthesis of the T antigen which remained localized at the nucleolar membrane. This finding with puromycin suggests that the T antigen is a protein of low molecular weight. Virus antigen forming in the presence of mitomycin C, p-fluorophenylalanine, iododeoxyuridine, or fluorouracil was distributed atypically. These inhibitors caused the V antigen to be diffusely spread throughout the nucleus, or to be concentrated at the nuclear membrane.
Collapse
|
3
|
Tanigawa T, Takayama H, Takagi A. Induction of a stable phagocytic property by cytosine arabinoside in an SV40-transformed macrophage cell line. Microbiol Immunol 1980; 24:765-9. [PMID: 6252419 DOI: 10.1111/j.1348-0421.1980.tb02880.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
4
|
Chow LT, Broker TR, Lewis JB. Complex splicing patterns of RNAs from the early regions of adenovirus-2. J Mol Biol 1979; 134:265-303. [PMID: 537065 DOI: 10.1016/0022-2836(79)90036-6] [Citation(s) in RCA: 467] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
5
|
|
6
|
Abstract
Treatment of human SV40-transformed cells with excess thymidine or cytosine arabinoside caused a rapid decrease in the expression of T antigen as determined by quantitative immunofluorimetry.
Collapse
|
7
|
Hirai K, Defendi V. The effects of serum concentration on the level of integration of simian virus (SV40) genome and the transformation frequency in SV40-infected Chinese hamster cells. Virology 1976; 69:229-36. [PMID: 174291 DOI: 10.1016/0042-6822(76)90209-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
8
|
Stenman S, Zeuthen J, Ringertz NR. Expression of SV40 T antigen during the cell cycle of sv40-transformed cells. Int J Cancer 1975; 15:547-54. [PMID: 166940 DOI: 10.1002/ijc.2910150403] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The expression of the nuclear SV40-induced T antigen was measured by microfluorimetry on individual, asynchronously growing SV40-transformed cells which had been stained with hamster T-antiserum by the indirect immunofluorescence method. The same individual cells were first measured for T antigen and then for DNA by Feulgen microspectrophotometry. A linear correlation was observed between the two parameters. T antigen expression was also measured in cell populations arrested at different phases of the cell cycle. Results of both types of experiments show that the expression of the gene (s) for T antigen in transformed cells increases during DNA replication and reaches its highest level in G2 nuclei. During mitosis T antigen is found in the cytoplasm.
Collapse
|
9
|
Manteuil S, Girard M. Inhibitors of DNA synthesis: their influence on replication and transcription of simian virus 40 DNA. Virology 1974; 60:438-54. [PMID: 4367488 DOI: 10.1016/0042-6822(74)90338-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
10
|
Calothy G, Hirai K, Defendi V. 5-Bromodeoxyuridine incorporation into simian virus 40 deoxyribonucleic acid. Effects on simian virus 40 replication in monkey cells. Virology 1973; 55:329-38. [PMID: 4355111 DOI: 10.1016/0042-6822(73)90172-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
11
|
Levine AS, Levin MJ, Oxman MN, Lewis AM. Studies of nondefective adenovirus 2-simian virus 40 hybrid viruses. VII. Characterization of the simian virus 40 RNA species induced by five nondefective hybrid viruses. J Virol 1973; 11:672-81. [PMID: 4350712 PMCID: PMC355163 DOI: 10.1128/jvi.11.5.672-681.1973] [Citation(s) in RCA: 38] [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
Five nondefective adenovirus 2 (Ad2)-simian virus 40 (SV40) hybrid viruses have been isolated and found to contain segments of SV40 DNA covalently linked to Ad2 DNA. The quantity of SV40 DNA present is a stable characteristic of each hybrid virus, and varies from less than 5% (in Ad2(+)ND(3)) to more than 30% (in Ad2(+)ND(4)) of the SV40 genome. We have characterized the SV40 portions of these hybrids by relating the SV40-specific RNA sequences transcribed in cells infected with each hybrid virus to those transcribed in cells infected with each of the other hybrid viruses and with SV40 itself. RNA-DNA hybridization-competition experiments indicate that the number of unique SV40 RNA sequences transcribed in infected cells is proportional to the size of the SV40 DNA segment contained within each hybrid and, in the case of the three hybrids which induce detectable SV40-specific antigens, to the number of SV40 antigens induced. Furthermore, the SV40-specific RNA sequences transcribed from any one of the hybrids are completely represented in the RNA transcribed from all other hybrids with longer SV40 segments. Thus, the SV40 DNA regions in the five hybrid viruses appear to contain some nucleotide sequences in common. The SV40-specific RNA transcribed from Ad2(+)ND(4), the hybrid containing the largest SV40 segment, is qualitatively similar to the SV40-specific RNA transcribed early (i.e., prior to viral DNA replication) in SV40 lytic infection. Thus, it appears that no significant amount of late SV40 DNA is transcribed during infection by any of the five nondefective Ad2-SV40 hybrid viruses.
Collapse
|
12
|
Girard M, Stehelin D, Manteuil S, Pages J. Aspects of the encapsidation of simian virus 40 deoxyribonucleic acid. J Virol 1973; 11:107-15. [PMID: 4346277 PMCID: PMC355066 DOI: 10.1128/jvi.11.1.107-115.1973] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Growing subcloned CV1-cells were infected with simian virus 40, and the time course of virus formation was determined. When infected cells were fractionated into cytoplasmic and nuclear fractions, most of the progeny virus particles were recovered in the cytoplasmic extract and not in the nuclei. This result was independent of the technique used for the preparation of nuclei and of the time after infection at which the extracts were prepared. Leakage of the virions from the nucleus occurred during the course of cell fractionation, suggesting that the nuclear membrane of the infected cells is damaged. Virions were found to accumulate in a nonlinear fashion, at the time when the number of viral deoxyribonucleic acid (DNA) molecules increases linearly with time after infection. This suggests that the size of the intracellular pool of capsid proteins increases constantly during the late phase of virus replication. Progeny viral DNA to become encapsidated is withdrawn at random from the pool of replicated DNA molecules.
Collapse
|
13
|
Huang ES, Nonoyama M, Pagano JS. Structure and function of the polypeptides in simian virus 40. II. Transcription of subviral deoxynucleoprotein complexes in vitro. J Virol 1972; 9:930-7. [PMID: 4338639 PMCID: PMC356398 DOI: 10.1128/jvi.9.6.930-937.1972] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A deoxynucleoprotein complex (DNP-1) isolated from simian virus 40 (SV40) after disruption of the virus in an alkaline buffer contains the viral deoxyribonucleic acid (DNA) and four minor structural polypeptides. Dissociation of DNP-I by equilibrium centrifugation in CsCl yields a complex (DNP-II) that contains a small amount of polypeptide tightly bound to the viral DNA. Studies of the template activity of these deoxynucleoprotein complexes in vitro with Escherichia coli transcriptase show that the rate of transcription of DNP-I and DNP-II is 30 and 80%, respectively, compared with that of deproteinized SV40 DNA component I. In dimethyl sulfoxide gradients, the complementary ribonucleic acid (cRNA) synthesized from DNP-I is one-third to one-half the size of the cRNA species from DNA-I and DNP-II. Competition hybridization experiments show that with the E. coli transcriptase only a portion (about one-half) of the SV40 genome is transcribed with DNP-I as template, whereas most or all of the genome is transcribed with DNP-II as template. The template activity of the deoxynucleoprotein complexes with a highly active form II ribonucleic acid polymerase prepared from SV40-infected permissive cells follows similar transcription kinetics. The results indicate that structural nucleoproteins of SV40 bind nonrandomly to the viral DNA and effect the transcription of some subset of its sequences in vitro.
Collapse
|
14
|
Pontén J. Spontaneous and virus induced transformation in cell culture. VIROLOGY MONOGRAPHS. DIE VIRUSFORSCHUNG IN EINZELDARSTELLUNGEN 1971; 8:1-253. [PMID: 4354654 DOI: 10.1007/978-3-7091-8258-1_1] [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]
|
15
|
|
16
|
Kit S, Tokuno S, Nakajima K, Trkula D, Dubbs DR. Temperature-sensitive simian virus 40 mutant defective in a late function. J Virol 1970; 6:286-94. [PMID: 4320387 PMCID: PMC376121 DOI: 10.1128/jvi.6.3.286-294.1970] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A temperature-sensitive simian virus 40 (SV40) mutant, tsTNG-1, has been isolated from nitrosoguanidine-treated and SV40-infected African green monkey kidney (CV-1) cultures. Replication of virus at the nonpermissive temperature (38.7 C) was 3,000-fold less than at the permissive temperature (33.5 C). Plaque formation by SV40tsTNG-1 deoxyribonucleic acid (DNA) on CV-1 monolayers occurred normally at 33.5 C but was grossly inhibited at 38.7 C. The time at which virus replication was blocked at 38.7 C was determined by temperature-shift experiments. In shift-up experiments, cultures infected for various times at 33.5 C were shifted to 38.7 C. In shift-down experiments, cultures infected for various times at 38.7 C were shifted to 33.5 C. All cultures were harvested at 96 hr postinfection (PI). No virus growth occurred when the shift-up occurred before 40 hr PI. Maximum virus yields were obtained at 96 hr PI when the shift-down occurred at 66 hr, but only about 15% of the maximum yield was obtained when the shift-down occurred at 76 hr PI. These results indicate that SV40tsTNG-1 contains a conditional lethal mutation in a late viral gene function. Mutant SV40tsTNG-1 synthesized T antigen, viral capsid antigens, and viral DNA, and induced thymidine kinase activity at either 33.5 or 38.7 C. The properties of the SV40 DNA synthesized in mutant-infected CV-1 cells at 33.5 or 38.7 C were very similar to those of SV40 DNA made in parental virus-infected cells, as determined by nitrocellulose column chromatography, cesium-chloride-ethidium bromide equilibrium centrifugation, and by velocity centrifugation in neutral sucrose gradients. Mutant SV40tsTNG-1 enhanced cellular DNA synthesis in primary cultures of mouse kidney cells at 33.5 and 38.7 C and also transformed mouse kidney cultures at 36.5 C. SV40tsTNG-1 was recovered from clonal lines of transformed cells after fusion with susceptible CV-1 cells and incubation of heterokaryons at 33.5 C, but not at 38.7 C.
Collapse
|
17
|
|
18
|
Uchida S, Watanabe S. Transformation of mouse 3T3 cells by T antigen-forming defective SV40 virions (T particles). Virology 1969; 39:721-8. [PMID: 4311638 DOI: 10.1016/0042-6822(69)90009-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
19
|
Levin MJ, Oxman MN, Diamandopoulos GT, Levine AS, Henry PH, Enders JF. Virus-specific nucleic acids in SV40-exposed hamster embryo cell lines: correlation with S and T antigens. Proc Natl Acad Sci U S A 1969; 62:589-96. [PMID: 4307716 PMCID: PMC277849 DOI: 10.1073/pnas.62.2.589] [Citation(s) in RCA: 37] [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
A number of homologous SV40-exposed hamster embryonic cell lines were examined for the presence of RNA complementary to SV40 DNA. Only those lines containing the SV40 T antigen were found to have such virus-specific RNA. In lines containing the SV40 S antigen, but not the SV40 T antigen, virus-specific RNA was not detected. These findings suggest that the S antigen is not coded for directly by the SV40 genome.
Collapse
|
20
|
|
21
|
Chaube S, Kreis W, Uchida K, Murphy ML. The teratogenic effect of 1-beta-D-arabinofuranosylcytosine in the rat. Protection by deoxycytidine. Biochem Pharmacol 1968; 17:1213-6. [PMID: 5659770 DOI: 10.1016/0006-2952(68)90058-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
22
|
Oda K, Dulbecco R. Regulation of transcription of the SV40 DNA in productively infected and in transformed cells. Proc Natl Acad Sci U S A 1968; 60:525-32. [PMID: 4302639 PMCID: PMC225079 DOI: 10.1073/pnas.60.2.525] [Citation(s) in RCA: 114] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
23
|
Fong CK, Hsiung GD, Bensch KG. Productive and abortive infections of simian and nonsimian cells with a simian adenovirus SV15. II. Viral biosynthesis and effects of chemical inhibitors. Virology 1968; 35:311-20. [PMID: 4298713 DOI: 10.1016/0042-6822(68)90271-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
24
|
Gilead Z, Ginsberg HS. Characterization of the tumorlike (T) antigen induced by type 12 adenovirus. II. Physical and chemical properties. J Virol 1968; 2:15-20. [PMID: 5754567 PMCID: PMC375572 DOI: 10.1128/jvi.2.1.15-20.1968] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
T antigen, purified from KB cells infected with type 12 adenovirus, was characterized by chemical and physical methods. The immunologically active molecule had an ultraviolet-absorption spectrum characteristic of a protein, and was partially inactivated (i.e., approximately 85%) by trypsin (final concentration of 150 mug/ml). Centrifugation analyses indicated that the purified antigen was a single molecular species with an average sedimentation coefficient of 2.40S (measured by zonal centrifugation in sucrose gradients) and an S(20,w) of 2.58 determined by analytical centrifugation. The antigen was inactivated at temperatures above 40 C, it was stable between pH 5.7 and 8.8, and it had an isoelectric point of approximately 5.0, as determined by electrophoresis on cellulose polyacetate membranes.
Collapse
|
25
|
Ledinko N. Plaque assay of the effects of cytosine arabinoside and 5-iodo-2'-deoxyuridine on the synthesis of H-I virus particles. Nature 1967; 214:1346-7. [PMID: 4293977 DOI: 10.1038/2141346a0] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
26
|
Oxman MN, Baron S, Black PH, Takemoto KK, Habel K, Rowe WP. The effect of interferon on SV-40 T antigen production in SV-40-transformed cells. Virology 1967; 32:122-7. [PMID: 4290716 DOI: 10.1016/0042-6822(67)90260-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
27
|
Oxman MN. Some behavioral studies of simian virus 40 (SV 40). ARCHIV FUR DIE GESAMTE VIRUSFORSCHUNG 1967; 22:171-87. [PMID: 4301193 DOI: 10.1007/bf01240512] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
28
|
Karnofsky DA, Lacon CR. The effects of 1-beta-D-arabinofuranosylcytosine on the developing chick embyro. Biochem Pharmacol 1966; 15:1435-42. [PMID: 4961655 DOI: 10.1016/0006-2952(66)90188-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
29
|
Kit S, Dubbs DR, Piekarski LJ, de Torres RA, Melnick JL. Acquisition of enzyme function by mouse kidney cells abortively infected with papovavirus SV40. Proc Natl Acad Sci U S A 1966; 56:463-70. [PMID: 4291009 PMCID: PMC224395 DOI: 10.1073/pnas.56.2.463] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
30
|
Reich PR, Black PH, Weissman SM. Nucleic acid homology studies of SV 40 virus-transformed and normal hamster cells. Proc Natl Acad Sci U S A 1966; 56:78-85. [PMID: 4290903 PMCID: PMC285678 DOI: 10.1073/pnas.56.1.78] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
31
|
Hollinshead AC, Huebner RJ. Adenovirus 12 virion-free "T" antigen from infected cells inhibited with cytosine arabinoside. Nature 1966; 210:1381-3. [PMID: 5963775 DOI: 10.1038/2101381b0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
32
|
�ber die Bildung von virusspezifischem SV-40 Antigen in Gegenwart von 5-Jod-2?-desoxyuridin. Arch Virol 1966. [DOI: 10.1007/bf01241846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
33
|
Oxman MN, Black PH. Inhibition of SV40 T antigen formation by interferon. Proc Natl Acad Sci U S A 1966; 55:1133-40. [PMID: 4289202 PMCID: PMC224290 DOI: 10.1073/pnas.55.5.1133] [Citation(s) in RCA: 53] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
34
|
Sabin AB. Different effects of chloramphenicol, dactinomycin, and streptovitacin A on synthesis of tumor and virion antigens in SV40 virus-infected cells. Proc Natl Acad Sci U S A 1966; 55:1141-8. [PMID: 4289203 PMCID: PMC224291 DOI: 10.1073/pnas.55.5.1141] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
35
|
Kit S, Dubbs DR, Frearson PM, Melnick JL. Enzyme induction in SV40-infected green monkey kidney cultures. Virology 1966; 29:69-83. [PMID: 4287027 DOI: 10.1016/0042-6822(66)90197-8] [Citation(s) in RCA: 89] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
36
|
Gerber P. Studies on the transfer of subviral infectivity from SV40-induced hamster tumor cells to indicator cells. Virology 1966; 28:501-9. [PMID: 4287200 DOI: 10.1016/0042-6822(66)90234-0] [Citation(s) in RCA: 137] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
37
|
Noell CW, Cheng CC. Pyrimidines. XVII. I-(Tetrahydro-2-pyranyl)cytosine, -uracil, -thymine and related compounds. J Heterocycl Chem 1966. [DOI: 10.1002/jhet.5570030102] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
38
|
Maass G. [Simian virus (SV) 40]. ERGEBNISSE DER MIKROBIOLOGIE, IMMUNITATSFORSCHUNG UND EXPERIMENTELLEN THERAPIE 1966; 39:146-93. [PMID: 4285966 DOI: 10.1007/978-3-662-38353-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
39
|
Cohen SS. Introduction to the biochemistry of D-arabinosyl nucleosides. PROGRESS IN NUCLEIC ACID RESEARCH AND MOLECULAR BIOLOGY 1966; 5:1-88. [PMID: 5337697 DOI: 10.1016/s0079-6603(08)60231-7] [Citation(s) in RCA: 130] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
40
|
|
41
|
|
42
|
Rowe WP, Baum SG, Pugh E, Hoggan MD. Studies of adenovirus SV40 hybrid viruses. I. Assay system and further evidence for hybridization. J Exp Med 1965; 122:943-54. [PMID: 4285252 PMCID: PMC2138118 DOI: 10.1084/jem.122.5.943] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The titers of adenovirus and SV40 genetic carriers in hybrid preparations (E46(+)) can be quantitated by determining the percentage of cells showing neoantigens stainable with fluorescent antibody (FA) at 21 to 24 hours; both titers can be obtained with a single coverslip. The adenovirus and SV40 antigen-inducing titers so obtained are of the same order of magnitude in stock preparations of E46(+) grown in either African green monkey kidney (AGMK) or human embryonic kidney tissue culture (HEK), and are generally within one log of the infectivity titer. Quantitative studies of 50 degrees C heat inactivation, ultracentrifugation, and equilibrium density gradient centrifugation of E46(+) gave no indication that SV40 neoantigen induction could be dissociated from adenovirus, whereas adenovirus and SV40 virus grown as a mixed infection were readily dissociated by these procedures. Pretreatment of HEK cells with a medium containing 5-fluorouracil desoxyriboside (FUDR) did not affect induction of either adenovirus or SV40 neoantigen or development of cytopathic effects after infection with E46(+), but did prevent formation of Ad. 7 viral antigen.
Collapse
|
43
|
|
44
|
Melnick JL, Rapp F. The use of antiviral compounds in analyzing the sequential steps in the replication of SV40 papovavirus. Ann N Y Acad Sci 1965; 130:291-309. [PMID: 4285577 DOI: 10.1111/j.1749-6632.1965.tb12562.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
45
|
Melnick JL, Rapp F. Effect of inhibitors on induction of SV40 tumor antigen by an adenovirus-SV40 hybrid. ARCHIV FUR DIE GESAMTE VIRUSFORSCHUNG 1965; 17:424-35. [PMID: 4286903 DOI: 10.1007/bf01241197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|