IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_ncomms14431.html
   My bibliography  Save this article

Induced p53 loss in mouse luminal cells causes clonal expansion and development of mammary tumours

Author

Listed:
  • Luwei Tao

    (Brigham and Women’s Hospital
    Harvard Medical School)

  • Dongxi Xiang

    (Brigham and Women’s Hospital
    Harvard Medical School)

  • Ying Xie

    (Brigham and Women’s Hospital
    Harvard Medical School)

  • Roderick T. Bronson

    (Rodent Histopathology, Harvard Medical School)

  • Zhe Li

    (Brigham and Women’s Hospital
    Harvard Medical School)

Abstract

Most breast cancers may have a luminal origin. TP53 is one of the most frequently mutated genes in breast cancers. However, how p53 deficiency contributes to breast tumorigenesis from luminal cells remains elusive. Here we report that induced p53 loss in Krt8+ mammary luminal cells leads to their clonal expansion without directly affecting their luminal identity. All induced mice develop mammary tumours with 9qA1 (Yap1) and/or 6qA2 (Met) amplification(s). These tumours exhibit a mammary stem cell (MaSC)-like expression signature and most closely resemble claudin-low breast cancer. Thus, although p53 does not directly control the luminal fate, its loss facilitates acquisition of MaSC-like properties by luminal cells and predisposes them to development of mammary tumours with loss of luminal identity. Our data also suggest that claudin-low breast cancer can develop from luminal cells, possibly via a basal-like intermediate state, although further study using a different luminal promoter is needed to fully support this conclusion.

Suggested Citation

  • Luwei Tao & Dongxi Xiang & Ying Xie & Roderick T. Bronson & Zhe Li, 2017. "Induced p53 loss in mouse luminal cells causes clonal expansion and development of mammary tumours," Nature Communications, Nature, vol. 8(1), pages 1-13, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14431
    DOI: 10.1038/ncomms14431
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms14431
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms14431?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Joseph G. Kern & Andrew M. Tilston-Lunel & Anthony Federico & Boting Ning & Amy Mueller & Grace B. Peppler & Eleni Stampouloglou & Nan Cheng & Randy L. Johnson & Marc E. Lenburg & Jennifer E. Beane & , 2022. "Inactivation of LATS1/2 drives luminal-basal plasticity to initiate basal-like mammary carcinomas," Nature Communications, Nature, vol. 13(1), pages 1-13, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14431. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.