Published June 2010 | Version v1
Report

Significance of poly (ADP-ribosylation) enzymes and their inhibitors on heavy ion therapy

  • 1. National Cancer Center Research Inst., Biochemistry Div., Tokyo (Japan)
  • 2. National Inst. of Radiological Sciences, Chiba, Chiba (Japan)

Description

Poly(ADP-ribose) polymerase-1 (Parp-1) deficient embryonic stem (ES) cells and Poly(ADP-ribose) glycohydrolase (Parg) deficient ES cells both show increased sensitivity to gamma-irradiation. We investigated the impact of Parp-1 and Parg functional inhibition on responses to heavy ion irradiation. Parp-1 knockout mouse embryonic fibroblast (MEF) exhibited increased levels of gamma-H2AX foci, a DNA double strand break marker, compared to wild-type MEF. Parg knockout ES cells showed enhanced apoptosis after carbon-ion irradiation. These results suggest that Parp-1 and Parg could be the factors which determine the sensitivity to heavy ion irradiation. (author)

Part of:
2009 annual report of the research project with heavy ions at NIRS-HIMAC

Additional details

Publishing Information

Imprint Title
2009 annual report of the research project with heavy ions at NIRS-HIMAC
Imprint Pagination
338 p.
Journal Page Range
p. 102-103
Report number
NIRS-M--234

Optional Information

Notes
This record replaces 45037372
Secondary number(s)
HIMAC--134