Cited by 138DNA Repair MechanismsEffects of Radiation ExposureDNA and Nucleic Acid Chemistry

Perturbed gap-filling synthesis in nucleotide excision repair causes histone H2AX phosphorylation in human quiescent cells

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Matsumoto, Megumi, Yaginuma, Kie, Igarashi, Ai, Imura, Mayumi, Hasegawa, Mizuho, Iwabuchi, Kuniyoshi, Date, Takayasu, Mori, Toshio +4 more·2007·Journal of Cell Science

Abstract

Human histone H2AX is rapidly phosphorylated on serine 139 in response to DNA double-strand breaks and plays a crucial role in tethering the factors involved in DNA repair and damage signaling. Replication stress caused by hydroxyurea or UV also initiates H2AX phosphorylation in S-phase cells, although UV-induced H2AX phosphorylation in non-cycling cells has recently been observed. Here we study the UV-induced H2AX phosphorylation in human primary fibroblasts under growth-arrested conditions. This reaction absolutely depends on nucleotide excision repair (NER) and is mechanistically distinct from the replication stress-induced phosphorylation. The treatment of cytosine-β-D-arabinofuranoside strikingly enhances the NER-dependent H2AX phosphorylation and induces the accumulation of replication protein A (RPA) and ATR-interacting protein (ATRIP) at locally UV-damaged subnuclear regions. Consistently, the phosphorylation appears to be mainly mediated by ataxia-telangiectasia mutated and Rad3-related (ATR), although Chk1 (Ser345) is not phosphorylated by the activated ATR. The cellular levels of DNA polymerases δ and ϵ and proliferating cell nuclear antigen are markedly reduced in quiescent cells. We propose a model that perturbed gap-filling synthesis following dual incision in NER generates single-strand DNA gaps and hence initiates H2AX phosphorylation by ATR with the aid of RPA and ATRIP.

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Authors
Matsumoto, M., Yaginuma, K., Igarashi, A., Imura, M., Hasegawa, M., Iwabuchi, K., Date, T., Mori, T., Ishizaki, K., Yamashita, K., Inobe, M., & Matsunaga, T.
Affiliations
  • Kanazawa University (JP)
  • Kanazawa Medical University (JP)
  • Nara Medical University (JP)
  • Aichi Cancer Center (JP)
Corresponding author
Matsunaga, Tsukasa
Venue
Journal of Cell Science
Published
2007-03-15
Volume
120
Issue
6
Pages
1104-1112
ISSN
  • 0021-9533 (ISSN-L)
  • 1477-9137
OpenAlex
W2139697903
Cited by
138
References
45
Citations by year
2026: 3 · 2025: 3 · 2024: 4 · 2023: 1 · 2022: 6 · 2021: 6 · 2020: 6 · 2019: 9 · 2018: 5 · 2017: 2 · 2016: 9 · 2015: 5 · 2014: 12 · 2013: 7 · 2012: 13
FWCI
4.74
Type
journal article
Language
en
Licence
cc-by-nc-nd
Locations
  • Journal of Cell Science (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • Kanazawa University Repository for Academic Resources (DSpace) (Kanazawa University) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
H2AX phosphorylation, nucleotide excision repair, UV-induced DNA damage, quiescent cells, ATR, RPA, ATRIP, replication stress, DNA double-strand breaks, DNA polymerase delta, DNA polymerase epsilon, proliferating cell nuclear antigen, cytosine arabinofuranoside, DNA repair signaling
MeSH terms
Checkpoint Kinase 1, Cell Cycle, Cells, Cultured, Cytarabine, DNA Damage, DNA Polymerase II, DNA Polymerase III, DNA Repair, DNA-Binding Proteins, DNA, Single-Stranded, Fibroblasts, Histones, Humans, Phosphorylation, Protein Kinases, Ultraviolet Rays, Signal Transduction, Protein Serine-Threonine Kinases, Cell Cycle Proteins, Proliferating Cell Nuclear Antigen, Adaptor Proteins, Signal Transducing, Replication Protein A, Ataxia Telangiectasia Mutated Proteins

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