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Cited by 297

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Spatial and Temporal Cellular Responses to Single-Strand Breaks in Human Cells

Open access
·2003·Molecular and Cellular Biology

Abstract

DNA single-strand breaks (SSB) are one of the most frequent DNA lesions produced by reactive oxygen species and during DNA metabolism, but the analysis of cellular responses to SSB remains difficult due to the lack of an experimental method to produce SSB alone in cells. By using human cells expressing a foreign UV damage endonuclease (UVDE) and irradiating the cells with UV through tiny pores in membrane filters, we created SSB in restricted areas in the nucleus by the immediate action of UVDE on UV-induced DNA lesions. Cellular responses to the SSB were characterized by using antibodies and fluorescence microscopy. Upon UV irradiation, poly(ADP-ribose) synthesis occurred immediately in the irradiated area. Simultaneously, but dependent on poly(ADP-ribosyl)ation, XRCC1 was translocated from throughout the nucleus, including nucleoli, to the SSB. The BRCT1 domain of XRCC1 protein was indispensable for its poly(ADP-ribose)-dependent recruitment to the SSB. Proliferating cell nuclear antigen and the p150 subunit of chromatin assembly factor 1 also accumulated at the SSB in a detergent-resistant form, which was significantly reduced by inhibition of poly(ADP-ribose) synthesis. Our results show the importance of poly(ADP-ribosyl)ation in sequential cellular responses to SSB.

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Metadata

Venue
Molecular and Cellular Biology
Published
2003-08-01
Volume
23
Issue
15
Pages
5472-5472
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W2102207473
Cited by
297
References
3
FWCI
8.15
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Spatial and Temporal Cellular Responses to Single-Strand Breaks in Human Cells. https://app.cochat.ai/papers/10.1128/mcb.23.15.5472.2003
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Spatial and Temporal Cellular Responses to Single-Strand Breaks in Human Cells. (2003). Molecular and Cellular Biology. https://doi.org/10.1128/mcb.23.15.5472.2003

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