ArticleCancer science2008
Impaired removal of DNA interstrand cross-link in Nijmegen breakage syndrome and Fanconi anemia, but not in BRCA-defective group.
Article in Cancer science, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed, 8 citations in OpenAlex.
- NBS1 and multiple regulations of DNA damage response.Journal of radiation research · 2016Review
- A clickable psoralen to directly quantify DNA interstrand crosslinking and repair.Bioorganic & medicinal chemistry · 2016Article
- Functional Role of NBS1 in Radiation Damage Response and Translesion DNA Synthesis.Biomolecules · 2015Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human diseases characterized by a high sensitivity to DNA interstrand cross-links (ICL) and predisposition to malignance include Nijmegen breakage syndrome (NBS) and Fanconi anemia (FA), which is further classified to three groups: (1) FA core-complex group; (2) FA-ID complex group; and (3) breast cancer (BRCA)-defective group. The relationships between these four groups and the basic defect in ICL repair remain unclear. To study the details of ICL repair in NBS and FA, a highly sensitive PPB (psoralen-polyethylene oxide-biotin) dot blot assay was developed to provide sensitive quantitative measurements of ICL during the removal process. Studies utilizing this assay demonstrated a decreased rate of ICL removal in cells belonging to the FA core-complex group (e.g. groups A and G) and FA-ID complex group (group D2), while ICL removal was restored to normal levels after these cells were complemented with wt-FANCA, wt-FANCG and wt-FANCD2. Conversely, FA-D1 cells with a defective BRCA2 protein displayed normal ICL removal, although they were compromised with respect to recombination. This normal ICL removal rate in recombination-deficient cells was confirmed by using XRCC3-defective Chinese hamster cells, which are similarly compromised with respect to recombination and are sensitive to mitomycin C. The present study also showed that cells from patients with Nijmegen breakage syndrome were defective in ICL removal, while they were impaired in the recombination. These results indicate an obvious defect of FA and NBS in the ICL repair process, except in the BRCA-defective group, and a separate step of recombination-mediated repair pathway between the BRCA group and NBS.
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Registered trials
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