KIAA1018/FAN1 nuclease protects cells against genomic instability induced by interstrand cross-linking agents

Kazunori Yoshikiyo, Katja Kratz, Kouji Hirota, Kana Nishihara, Minoru Takata, Hitoshi Kurumizaka, Satoshi Horimoto, Shunichi Takeda, Josef Jiricny

    Research output: Contribution to journalArticle

    56 Citations (Scopus)

    Abstract

    Fanconi anemia (FA) is a rare genetic disease characterized by congenital defects, bone marrow failure, chromosomal instability, and cancer susceptibility. One hallmark of cells from FA patients is hypersensitivity to interstrand cross-linking agents, such as the chemotherapeutics cisplatin and mitomycin C (MMC). We have recently characterized a FANCD2/FANCI-associated nuclease, KIAA1018/FAN1, the depletion of which sensitizes human cells to these agents. However, as the down-regulation of FAN1 in human cells was mediated by siRNA and thus only transient, we were unable to study the long-term effects of FAN1 loss on chromosomal stability. We now describe the generation of chicken DT40 B cells, in which the FAN1 locus was disrupted by gene targeting. FAN1-null cells are highly sensitive to cisplatin and MMC, but not to ionizing or UV radiation, methyl methanesulfonate, or camptothecin. The cells do not display elevated sister chromatid exchange frequencies, either sporadic or MMC-induced. Interestingly, MMC treatment causes chromosomal instability that is quantitatively, but not qualitatively, comparable to that seen in FA cells. This finding, coupled with evidence showing that DT40 cells deficient in both FAN1 and FANCC, or FAN1 and FANCJ, exhibited increased sensitivity to cisplatin compared with cells lacking only FAN1, suggests that, despite its association with FANCD2/FANCI, FAN1 in DT40 cells participates in the processing of damage induced by interstrand cross-linking-generating agents also independently of the classical FA pathway.

    Original languageEnglish
    Pages (from-to)21553-21557
    Number of pages5
    JournalProceedings of the National Academy of Sciences of the United States of America
    Volume107
    Issue number50
    DOIs
    Publication statusPublished - 2010 Dec 14

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    Genomic Instability
    Fanconi Anemia
    Mitomycin
    Chromosomal Instability
    Cisplatin
    Methyl Methanesulfonate
    Camptothecin
    Null Lymphocytes
    Inborn Genetic Diseases
    Sister Chromatid Exchange
    Gene Targeting
    Rare Diseases
    Small Interfering RNA
    Chickens
    Hypersensitivity
    B-Lymphocytes
    Down-Regulation
    Bone Marrow
    Radiation

    ASJC Scopus subject areas

    • General

    Cite this

    KIAA1018/FAN1 nuclease protects cells against genomic instability induced by interstrand cross-linking agents. / Yoshikiyo, Kazunori; Kratz, Katja; Hirota, Kouji; Nishihara, Kana; Takata, Minoru; Kurumizaka, Hitoshi; Horimoto, Satoshi; Takeda, Shunichi; Jiricny, Josef.

    In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 107, No. 50, 14.12.2010, p. 21553-21557.

    Research output: Contribution to journalArticle

    Yoshikiyo, K, Kratz, K, Hirota, K, Nishihara, K, Takata, M, Kurumizaka, H, Horimoto, S, Takeda, S & Jiricny, J 2010, 'KIAA1018/FAN1 nuclease protects cells against genomic instability induced by interstrand cross-linking agents', Proceedings of the National Academy of Sciences of the United States of America, vol. 107, no. 50, pp. 21553-21557. https://doi.org/10.1073/pnas.1011081107
    Yoshikiyo, Kazunori ; Kratz, Katja ; Hirota, Kouji ; Nishihara, Kana ; Takata, Minoru ; Kurumizaka, Hitoshi ; Horimoto, Satoshi ; Takeda, Shunichi ; Jiricny, Josef. / KIAA1018/FAN1 nuclease protects cells against genomic instability induced by interstrand cross-linking agents. In: Proceedings of the National Academy of Sciences of the United States of America. 2010 ; Vol. 107, No. 50. pp. 21553-21557.
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    AU - Takata, Minoru

    AU - Kurumizaka, Hitoshi

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