Skip to main content
NCBI home page
Journal of Virology logoLink to Journal of Virology
. 1980 Oct;36(1):41–49. doi: 10.1128/jvi.36.1.41-49.1980

Revertants of Adenovirus Type 12-Transformed Hamster Cell Line T637 as Tools in the Analysis of Integration Patterns

Dirk Eick 1, Silvia Stabel 1, Walter Doerfler 1
PMCID: PMC353614  PMID: 7441824

Abstract

Spontaneously arising morphological revertants of the adenovirus type 12 (Ad12)-transformed hamster cell line T637 had been previously isolated, and it had been demonstrated that in these revertants varying amounts of the integrated Ad12 genome were eliminated from the host genome. In this report, the patterns of persistence of the viral genome in the revertants were analyzed in detail. In some of the revertant cell lines, F10, TR3, and TR7, all copies of Ad12 DNA integrated in line T637 were lost. In lines TR1, -2, -4 to -6, -8 to -10, and -13 to -16, only the right-hand portion of one Ad12 genome was preserved; it consisted of the intact right segment of Ad12 DNA and was integrated at the same site as in line T637. In revertant lines G12, TR11, and TR12, one Ad12 DNA and varying parts of a second viral DNA molecule persisted in the host genome. These patterns of persistence of Ad12 DNA molecules in different revertants supported a model for a mode of integration of Ad12 DNA in T637 hamster cells in which multiple (20 to 22) copies of the entire Ad12 DNA were serially arranged, separated from each other by stretches of cellular DNA. The occurrence of such revertants demonstrated that foreign DNA sequences could not only be acquired but could also be lost from eucaryotic genomes. There was very little, if any, expression of Ad12-specific DNA sequences in the revertant lines TR7 and TR12. Moreover, Ad12 DNA sequences which were found to be undermethylated in line T637 were completely methylated in the revertant cell lines G12, TR11, TR12, and TR2. These findings were consistent with the absence of T antigen from the revertant lines reported earlier. Hence it was conceivable that the expression of integrated viral DNA sequences was somehow dependent on their positions in the cellular genome. In cell line TR637, the early segments of Ad12 DNA were expressed and undermethylated; conversely, in the revertant lines G12, TR11, TR12, and TR2, the same segments appeared to be expressed to a limited extent and were strongly methylated.

Full text

PDF
41

Images in this article

43Image
on p.43
45Image
on p.45
47Image
on p.47
47Image
on p.47

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Alwine J. C., Kemp D. J., Stark G. R. Method for detection of specific RNAs in agarose gels by transfer to diazobenzyloxymethyl-paper and hybridization with DNA probes. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5350–5354. doi: 10.1073/pnas.74.12.5350. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Basilico C., Gattoni S., Zouzias D., Valle G. D. Loss of integrated viral DNA sequences in polyomatransformed cells is associated with an active viral A function. Cell. 1979 Jul;17(3):645–659. doi: 10.1016/0092-8674(79)90272-1. [DOI] [PubMed] [Google Scholar]
  3. Doerfler W., Hellmann W., Kleinschmidt A. K. The DNA of adenovirus type 12 and its denaturation pattern. Virology. 1972 Feb;47(2):507–512. doi: 10.1016/0042-6822(72)90290-5. [DOI] [PubMed] [Google Scholar]
  4. Doerfler W., Stabel S., Ibelgaufts H., Sutter D., Neumann R., Groneberg J., Scheidtmann K. H., Deuring R., Winterhoff U. Selectivity in integration sites of adenoviral DNA. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 1):551–564. doi: 10.1101/sqb.1980.044.01.057. [DOI] [PubMed] [Google Scholar]
  5. Fanning E., Doerfler W. Intracellular forms of adenovirus DNA. V. Viral DNA sequences in hamster cells abortively infected and transformed with human adenovirus type 12. J Virol. 1976 Nov;20(2):373–383. doi: 10.1128/jvi.20.2.373-383.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Groneberg J., Doerfler W. Revertants of adenovirus type-12-transformed hamster cells have lost part of the viral genomes. Int J Cancer. 1979 Jul 15;24(1):67–74. doi: 10.1002/ijc.2910240112. [DOI] [PubMed] [Google Scholar]
  7. Groneberg J., Sutter D., Soboll H., Doerfler W. Morphological revertants of adenovirus type 12-transformed hamster cells. J Gen Virol. 1978 Sep;40(3):635–645. doi: 10.1099/0022-1317-40-3-635. [DOI] [PubMed] [Google Scholar]
  8. Mantei N., Boll W., Weissmann C. Rabbit beta-globin mRNA production in mouse L cells transformed with cloned rabbit beta-globin chromosomal DNA. Nature. 1979 Sep 6;281(5726):40–46. doi: 10.1038/281040a0. [DOI] [PubMed] [Google Scholar]
  9. Ortin J., Scheidtmann K. H., Greenberg R., Westphal M., Doerfler W. Transcription of the genome of adenovirus type 12. III. Maps of stable RNA from productively infected human cells and abortively infected and transformed hamster cells. J Virol. 1976 Nov;20(2):355–372. doi: 10.1128/jvi.20.2.355-372.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Rigby P. W., Dieckmann M., Rhodes C., Berg P. Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I. J Mol Biol. 1977 Jun 15;113(1):237–251. doi: 10.1016/0022-2836(77)90052-3. [DOI] [PubMed] [Google Scholar]
  11. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  12. Stabel S., Doerfler W., Friis R. R. Integration sites of adenovirus type 12 DNA in transformed hamster cells and hamster tumor cells. J Virol. 1980 Oct;36(1):22–40. doi: 10.1128/jvi.36.1.22-40.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Steinberg B., Pollack R., Topp W., Botchan M. Isolation and characterization of T antigen-negative revertants from a line of transformed rat cells containing one copy of the SV40 genome. Cell. 1978 Jan;13(1):19–32. doi: 10.1016/0092-8674(78)90134-4. [DOI] [PubMed] [Google Scholar]
  14. Sutter D., Doerfler W. Methylation of integrated adenovirus type 12 DNA sequences in transformed cells is inversely correlated with viral gene expression. Proc Natl Acad Sci U S A. 1980 Jan;77(1):253–256. doi: 10.1073/pnas.77.1.253. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Sutter D., Westphal M., Doerfler W. Patterns of integration of viral DNA sequences in the genomes of adenovirus type 12-transformed hamster cells. Cell. 1978 Jul;14(3):569–585. doi: 10.1016/0092-8674(78)90243-x. [DOI] [PubMed] [Google Scholar]
  16. Vardimon L., Neumann R., Kuhlmann I., Sutter D., Doerfler W. DNA methylation and viral gene expression in adenovirus-transformed and -infected cells. Nucleic Acids Res. 1980 Jun 11;8(11):2461–2473. doi: 10.1093/nar/8.11.2461. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Wahl G. M., Stern M., Stark G. R. Efficient transfer of large DNA fragments from agarose gels to diazobenzyloxymethyl-paper and rapid hybridization by using dextran sulfate. Proc Natl Acad Sci U S A. 1979 Aug;76(8):3683–3687. doi: 10.1073/pnas.76.8.3683. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Wigler M., Sweet R., Sim G. K., Wold B., Pellicer A., Lacy E., Maniatis T., Silverstein S., Axel R. Transformation of mammalian cells with genes from procaryotes and eucaryotes. Cell. 1979 Apr;16(4):777–785. doi: 10.1016/0092-8674(79)90093-x. [DOI] [PubMed] [Google Scholar]

Articles from Journal of Virology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES