Abstract
The TP53 tumor-suppressor gene is mutated in >50% of human tumors and Li-Fraumeni patients with germ line inactivation are predisposed to developing cancer. Here, we generated tp53 deleted zebrafish that spontaneously develop malignant peripheral nerve-sheath tumors, angiosarcomas, germ cell tumors, and an aggressive Natural Killer cell-like leukemia for which no animal model has been developed. Because the tp53 deletion was generated in syngeneic zebrafish, engraftment of fluorescent-labeled tumors could be dynamically visualized over time. Importantly, engrafted tumors shared gene expression signatures with predicted cells of origin in human tissue. Finally, we showed that tp53 del/del enhanced invasion and metastasis in kRAS G12D -induced embryonal rhabdomyosarcoma (ERMS), but did not alter the overall frequency of cancer stem cells, suggesting novel pro-metastatic roles for TP53 loss-of-function in human muscle tumors. In summary, we have developed a Li-Fraumeni zebrafish model that is amenable to large-scale transplantation and direct visualization of tumor growth in live animals.
Original language | English (US) |
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Article number | e37202 |
Journal | eLife |
Volume | 7 |
DOIs | |
State | Published - Sep 2018 |
Bibliographical note
Funding Information:Amanda Riley Foundation Research Fellowship
Funding Information:
We thank Dr. Jim Amatruda for sharing zebrafish MPNST RNAseq sample data.Funder Grant reference number Author National Cancer Institute R24OD016761 Myron S Ignatius Madeline N Hayes Finola E Moore Qin Tang Sara P Garcia Alexander Jin Ashwin Ramakrishnan Sophia Reeder Gunnlaugur Petur Nielsen Eleanor Y Chen Robert P Hasserjian David M Langenau Alex’s Lemonade Stand Foundation for Childhood Cancer Myron S Ignatius Madeline N Hayes David M Langenau National Cancer Institute R00CA175184 Myron S Ignatius Kunal Baxi Long Wang Yidong Chen National Cancer Center RR160062 Myron S Ignatius Kunal Baxi Long Wang National Cancer Institute R01CA154923 Myron S Ignatius Madeline N Hayes Finola E Moore Qin Tang Sara P Garcia Alexander Jin Ashwin Ramakrishnan Sophia Reeder Gunnlaugur Petur Nielsen Eleanor Y Chen Robert P Hasserjian David M Langenau National Cancer Institute U54CA168512 Myron S Ignatius Madeline N Hayes Finola E Moore Qin Tang Sara P Garcia Alexander Jin Ashwin Ramakrishnan Sophia Reeder Gunnlaugur Petur Nielsen Eleanor Y Chen Robert P Hasserjian David M Langenau Rally Foundation Amanda Riley Foundation Research Fellowship Madeline N Hayes National Cancer Center R01CA211734 Madeline N Hayes Sara P Garcia Alexander Jin David M Langenau National Cancer Center R01CA215118 Madeline N Hayes Sara P Garcia Alexander Jin David M Langenau National Cancer Institute UL1RR024150 Patrick R Blackburn National Cancer Institute GM63904 Stephen C Ekker St. Baldrick’s Foundation David M Langenau Massachusetts General Hospital Research Scholars Program David M Langenau The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Publisher Copyright:
© Ignatius et al.