Abstract
Studies suggest that inhibiting the hydrolysis of poly(ADP-ribose) (PAR) by targeting the enzyme PAR glycohydrolase (PARG) is a potential chemotherapeutic strategy to induce cell death. However, the lack of structural data for PARG has hindered the discovery of specific PARG inhibitors and thus hampered the search for cellular effects dependent on the hydrolysis of PAR. We previously generated a murine PARG null cell model to identify the intracellular processes mediated by PARG. Using this system, the only mammalian system to date that completely lacks PARG activity, we have shown that the absence of PARG leads to massive amounts of cell death due to increased levels of PAR. Further, we have shown that PARG null-TS cells exhibit profound hypersensitivity to low doses of DNA-damaging agents. This hypersensitivity most likely results from the high levels of DNA damage that occur after treatment of these cells with nonlethal doses of DNA-damaging agents.
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References
Koh DW, Lawler AM, Poitras MF et al (2004) Failure to degrade poly(ADP-ribose) causes increased sensitivity to cytotoxicity and early embryonic lethality. Proc Natl Acad Sci USA 101:17699–17704
Cortes U, Tong WM, Coyle DL et al (2004) Depletion of the 110-kilodalton isoform of poly(ADP-ribose) glycohydrolase increases sensitivity to genotoxic and endotoxic stress in mice. Mol Cell Biol 24:7163–7178
Gao H, Coyle DL, Meyer-Ficca ML et al (2007) Altered poly(ADP-ribose) metabolism impairs cellular responses to genotoxic stress in a hypomorphic mutant of poly(ADP-ribose) glycohydrolase. Exp Cell Res 313:984–996
Jacobson MK, Jacobson EL (1999) Discovering new ADP-ribose polymer cycles: protecting the genome and more. Trends Biochem Sci 24:415–417
Singh NP, McCoy MT, Tice RR et al (1988) A simple technique for quantitation of low levels of DNA damage in individual cells. Exp Cell Res 175:184–191
Tanaka S, Kunath T, Hadjantonakis AK et al (1998) Promotion of trophoblast stem cell proliferation by FGF4. Science 282:2072–2075
Nunbhakdi V, Jacobson EL (1987) Effects of a poly(ADP-ribose) polymerase inhibitor on mutation frequencies in dividing and quiescent C3H10T1/2 cells. Mutat Res 180:249–256
Pinsky SD, Tew KD, Smulson ME et al (1979) Modification of L1210 cell nuclear proteins by 1-methyl-1-nitrosourea and 1-methyl-3-nitro-1-nitrosoguanidine. Cancer Res 39:923–928
van Engeland M, Nieland LJ, Ramaekers FC et al (1998) Annexin V-affinity assay: a review on an apoptosis detection system based on phosphatidylserine exposure. Cytometry 31:1–9
Koopman G, Reutelingsperger CP, Kuijten GA et al (1994) Annexin V for flow cytometric detection of phosphatidylserine expression on B cells undergoing apoptosis. Blood 84:1415–1420
Darzynkiewicz Z, Bruno S, Del Bino G et al (1992) Features of apoptotic cells measured by flow cytometry. Cytometry 13:795–808
Acknowledgments
This work was supported by the American Cancer Society (IRG-77-003-26) and the Pharmaceutical Research and Manufacturers of America Foundation.
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Zhou, Y., Koh, D.W. (2011). Poly(ADP-ribosyl)ation Pathways in Mammals: The Advantage of Murine PARG Null Mutation. In: Tulin, A. (eds) Poly(ADP-ribose) Polymerase. Methods in Molecular Biology, vol 780. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-270-0_20
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DOI: https://doi.org/10.1007/978-1-61779-270-0_20
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Publisher Name: Humana Press, Totowa, NJ
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