Cell cycle-specific patterns of ADP-ribosylation and the effect of ionizing radiation

  • Authors:
    • P Ramsamooj
    • S Prasad
    • A Dritschilo
    • V Notario
  • View Affiliations

  • Published online on: April 1, 1996     https://doi.org/10.3892/ijo.8.4.803
  • Pages: 803-808
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Abstract

The enzyme poly(ADP-ribose)polymerase (PARP) has been implicated in several cellular processes by the demonstration of ADP-ribosylation of proteins which play a role in cellular repair of DNA damage, response to ionizing radiation and apoptosis. In addition, ADP-ribosylation has been shown to play a role in cell cycle progression. To investigate the role of ADP-ribosylation in cell cycle progression, we have synchronized human squamous carcinoma cells (SQ-20B) and examined the changes in the pattern of ADP-ribosylation of proteins through the stages of the cell cycle. Moreover, synchronized SQ-20B cells were irradiated to determine the effects of irradiation on the patterns of ADP-ribosylation through the cell cycle phases. These studies showed the ADP-ribosylation of 3 specific proteins (70, 68 and 40 kDa) to change through the cell cycle. Furthermore, ionizing radiation altered the ADP-ribosylation patterns of these 3 proteins. Using a double antibody method, we determined that cyclins A, B1 and D1, cdc2 and PCNA are not modified by ADP-ribosylation.

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April 1996
Volume 8 Issue 4

Print ISSN: 1019-6439
Online ISSN:1791-2423

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APA
Ramsamooj, P., Prasad, S., Dritschilo, A., & Notario, V. (1996). Cell cycle-specific patterns of ADP-ribosylation and the effect of ionizing radiation. International Journal of Oncology, 8, 803-808. https://doi.org/10.3892/ijo.8.4.803
MLA
Ramsamooj, P., Prasad, S., Dritschilo, A., Notario, V."Cell cycle-specific patterns of ADP-ribosylation and the effect of ionizing radiation". International Journal of Oncology 8.4 (1996): 803-808.
Chicago
Ramsamooj, P., Prasad, S., Dritschilo, A., Notario, V."Cell cycle-specific patterns of ADP-ribosylation and the effect of ionizing radiation". International Journal of Oncology 8, no. 4 (1996): 803-808. https://doi.org/10.3892/ijo.8.4.803