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Cited by 608

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

PARP1-dependent Kinetics of Recruitment of MRE11 and NBS1 Proteins to Multiple DNA Damage Sites

Open access
Haince, Jean-François, McDonald, Darin, Rodrigue, Amélie, Déry, Ugo, Masson, Jean-Yves, Hendzel, Michael J., Poirier, Guy G.·2008·Journal of Biological Chemistry

Abstract

Poly(ADP-ribose) polymerase 1 (PARP1) is a nuclear enzyme that is rapidly activated by DNA strand breaks and signals the presence of DNA lesions by attaching ADP-ribose units to chromatin-associated proteins. The therapeutic applications of PARP inhibitors in potentiating the killing action of ionizing radiation have been well documented and are attracting increasing interest as a cancer treatment. However, the initial kinetics underlying the recognition of multiple DNA lesions by PARP1 and how inhibition of PARP potentiates the activity of DNA-damaging agents are unknown. Here we report the spatiotemporal dynamics of PARP1 recruitment to DNA damage induced by laser microirradiation in single living cells. We provide direct evidence that PARP1 is able to accumulate at a locally induced DNA double strand break. Most importantly, we observed that the rapid accumulation of MRE11 and NBS1 at sites of DNA damage requires PARP1. By determining the kinetics of protein assembly following DNA damage, our study reveals the cooperation between PARP1 and the double strand break sensors MRE11 and NBS1 in the close vicinity of a DNA lesion. This may explain the sensitivity of cancer cells to PARP inhibitors.

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Metadata

Authors
Haince, J.-F., McDonald, D., Rodrigue, A., Déry, U., Masson, J.-Y., Hendzel, M. J., & Poirier, G. G.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2008-01
Volume
283
Issue
2
Pages
1197-1208
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2070758111
Cited by
608
References
38
FWCI
4.43
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: PARP1-dependent Kinetics of Recruitment of MRE11 and NBS1 Proteins to Multiple DNA Damage Sites. https://app.cochat.ai/papers/10.1074/jbc.m706734200
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Haince, J.-F., McDonald, D., Rodrigue, A., Déry, U., Masson, J.-Y., Hendzel, M. J., & Poirier, G. G. (2008). PARP1-dependent Kinetics of Recruitment of MRE11 and NBS1 Proteins to Multiple DNA Damage Sites. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m706734200

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