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Imatinib mesylate (Gleevec) downregulates telomerase activity and inhibits proliferation in telomerase-expressing cell lines
Imatinib mesylate (IM) is a tyrosine kinase inhibitor, which inhibits phosphorylation of downstream proteins involved in BCR-ABL signal transduction. It has proved beneficial in treating patientsExpand
p53 in mitochondria enhances the accuracy of DNA synthesis
Mitochondrial localization of p53 was observed in stressed and unstressed cells. p53 is involved in DNA repair and apoptosis. It exerts physical and functional interactions with mitochondrial DNA andExpand
Fidelity of DNA synthesis exhibited in vitro by the reverse transcriptase of the lentivirus equine infectious anemia virus.
The lentivirus equine infectious anemia virus (EIAV) shows high genetic variations. To gain insight into the relative contribution of the reverse transcription process to the EIAV mutation rate, theExpand
Intracellular production of virus particles and viral components in NIH/3T3 cells chronically infected with Moloney murine leukemia virus: effect of interferon.
The effect of interferon on the biochemical properties and the maturation process of intracellular viral particles isolated from the cytoplasmic fraction of NIH/3T3 cells chronically infected withExpand
Fidelity of the RNA-dependent DNA synthesis exhibited by the reverse transcriptases of human immunodeficiency virus types 1 and 2 and of murine leukemia virus: mispair extension frequencies.
Human immunodeficiency viruses type 1 and 2 (HIV-1 and HIV-2, respectively) exhibit extensive genetic variations. It was postulated that much of this genetic variability stems from the low fidelityExpand
Expression of the cDNA for the beta subunit of human casein kinase II confers partial UV resistance on xeroderma pigmentosum cells.
An immortalized xeroderma pigmentosum cell line belonging to the complementation group D (XP-D) was transfected with a normal human cDNA clone library constructed in a mammalian expression vector.Expand
Exonucleolytic proofreading by p53 protein.
The tumour suppressor p53 protein plays an important role in maintaining genetic integrity. Recently, p53 was shown to have an intrinsic 3'-->5' exonuclease activity. The current study has extendedExpand
Effect of imatinib on the signal transduction cascade regulating telomerase activity in K562 (BCR-ABL-positive) cells sensitive and resistant to imatinib.
OBJECTIVE Imatinib mesylate (IM) is a tyrosine kinase inhibitor selective for BCR-ABL and indicated for the treatment of chronic myeloid leukemia. It has recently been demonstrated that IM alsoExpand
Differential downregulation of telomerase activity by bortezomib in multiple myeloma cells-multiple regulatory pathways in vitro and ex vivo
Background:The importance of telomerase in multiple myeloma (MM) is well established; however, its response to bortezomib has not been addressed.Methods:The effect of bortezomib on telomeraseExpand
Fidelity of the reverse transcriptase of human immunodeficiency virus type 2
The relatively low fidelity of human immunodeficiency virus type 1 reverse transcriptase (HIV‐1 RT) was implicated as a major factor that contributes to the genetic variability of the virus.Expand
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