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Träfflista för sökning "WFRF:(Launonen K.) srt2:(2005-2009)"

Sökning: WFRF:(Launonen K.) > (2005-2009)

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  • Johansson, Ann-Sofie, 1967-, et al. (författare)
  • Germ line insertions of moloney murine leukemia virus in the TLL mouse causes site-specific differences in lymphoma/leukemia frequency and tumor immunophenotype
  • 2006
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 26:4B, s. 2873-2878
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Moloney murine leukemia virus (Mo-MLV) has proven valuable for studies of the pathogenesis of malignant lymphoma. Inoculation of newborn mice induces T cell lymphoma with 100% incidence. The TLL (T cell lymphoma/leukemia)-strain was previously established and was shown to spontaneously develop T cell lymphoma at high frequency. Materials and Methods: Differential screening of cDNA libraries was performed to discover an involvement of Mo-MLV and genomic sequencing was used to identify the chromosomal position of Mo-MLV proviral integration sites. Immunophenotypes of the tumors were established by flow cytometry. Disease frequency curves were created according to the Kaplan-Meier method. Results: Two independent Mo-MLV germ line integrations were characterized on chromosomes 2 and 14, giving rise to two substrains of mice denoted TLL-2 and TLL-14. The chromosomal position of the integrated provirus affected the frequency of disease, as well as the immunophenotype of the tumors. Conclusion: The data suggest that factors influencing the transcriptional activity of the chromosomal regions, leading to differences in proviral expression, could underlie the observed difference in tumor frequency.
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