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Letter to the Editor| Volume 17, ISSUE 11, e91-e92, November 2022

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Now We Have the First Animal Model for Thymoma

  • Taichiro Goto
    Correspondence
    Address for correspondence: Taichiro Goto, MD, PhD, Lung Cancer and Respiratory Disease Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan.
    Affiliations
    Lung Cancer and Respiratory Disease Center, Yamanashi Central Hospital, Yamanashi, Japan
    Search for articles by this author
      The study “A Knock-in Mouse Model of Thymoma With the GTF2I L424H Mutation” by He et al.
      • He Y.
      • Kim I.K.
      • Bian J.
      • et al.
      A knock-in mouse model of thymoma with the GTF2I L424H mutation [e-pub ahead of print]. J Thorac Oncol.
      generated a mouse model in which the Gtf2i L424H mutation was conditionally knocked-in in the Foxn1+ thymic epithelial cells and revealed that Gtf2i L424H mutation in the mouse thymus induced thymomas that histologically mirror human-type B1 and B2 thymomas. I wish to discuss the implications of this finding.
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      References

        • He Y.
        • Kim I.K.
        • Bian J.
        • et al.
        A knock-in mouse model of thymoma with the GTF2I L424H mutation [e-pub ahead of print]. J Thorac Oncol.
        https://doi.org/10.1016/j.jtho.2022.08.008
        Date accessed: September 5, 2022
        • Petrini I.
        • Meltzer P.S.
        • Kim I.K.
        • et al.
        A specific missense mutation in GTF2I occurs at high frequency in thymic epithelial tumors.
        Nat Genet. 2014; 46: 844-849
        • Higuchi R.
        • Goto T.
        • Hirotsu Y.
        • et al.
        Primary driver mutations in GTF2I specific to the development of thymomas.
        Cancers (Basel). 2020; 12: 2032
        • Higuchi R.
        • Goto T.
        • Hirotsu Y.
        • et al.
        PD-L1 expression and tumor-infiltrating lymphocytes in thymic epithelial neoplasms.
        J Clin Med. 2019; 8: 1833
        • Higuchi R.
        • Goto T.
        • Hirotsu Y.
        • et al.
        Sphingomonas and Phenylobacterium as major microbiota in thymic epithelial tumors.
        J Pers Med. 2021; 11: 1092

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