TY - JOUR
T1 - FGFR3-TACC3 is an oncogenic fusion protein in respiratory epithelium
AU - Best, Sarah A.
AU - Harapas, Cassandra R.
AU - Kersbergen, Ariena
AU - Rathi, Vivek
AU - Asselin-Labat, Marie Liesse
AU - Sutherland, Kate D.
N1 - Funding Information:
Acknowledgements We are grateful to C. Alvarado, L. Scott, H. Johnson, K. Birchall, and L. Mackiewicz for animal husbandry, E. Tsui and C. Tsui in the WEHI Histology Facility for expert support and P. Maltezos for preparation of the nasal cavity graphic image. The authors thank T. Wilson, J. Mighall, and J. Pasquet for technical support and W. Alexander for useful discussions and critically reading the manuscript. This work was supported in part by a Worldwide Cancer Research Project Grant [14–0433]. SAB is supported by a Victorian Cancer Agency (VCA) Early Career Seed Grant (ECSG16001); M-LA-L is supported by a Viertel Foundation Senior Medical Research Fellowship; KDS is supported by the Peter and Julie Alston Centenary Fellowship. This work was made possible through Victorian Government Operational Infrastructure Support and Australian Government.
Publisher Copyright:
© 2018, Macmillan Publishers Limited, part of Springer Nature.
PY - 2018/11/15
Y1 - 2018/11/15
N2 - Structural rearrangements of the genome can drive lung tumorigenesis through the generation of fusion genes with oncogenic properties. Advanced genomic approaches have identified the presence of a genetic fusion between fibroblast growth factor receptor 3 (FGFR3) and transforming acidic coiled-coil 3 (TACC3) in non-small cell lung cancer (NSCLC), providing a novel target for FGFR inhibition. To interrogate the functional consequences of the FGFR3–TACC3 fusion in the transformation of lung epithelial cells, we generated a novel transgenic mouse model that expresses FGFR3–TACC3 concomitant with loss of the p53 tumor suppressor gene. Intranasal delivery of an Ad5-CMV-Cre virus promoted seromucinous glandular transformation of olfactory cells lining the nasal cavities of FGFR3–TACC3 (LSL–F3T3) mice, which was further accelerated upon loss of p53 (LSL–F3T3/p53). Surprisingly, lung tumors failed to develop in intranasally infected LSL–F3T3 and LSL–F3T3/p53 mice. In line with these observations, we demonstrated that intranasal delivery of Ad5-CMV-Cre induces widespread Cre-mediated recombination in the olfactory epithelium. Intra-tracheal delivery of Ad5-CMV-Cre into the lungs of LSL–F3T3 and LSL–F3T3/p53 mice, however, resulted in the development of lung adenocarcinomas. Taken together, these findings provide in vivo evidence for an oncogenic function of FGFR3–TACC3 in respiratory epithelium.
AB - Structural rearrangements of the genome can drive lung tumorigenesis through the generation of fusion genes with oncogenic properties. Advanced genomic approaches have identified the presence of a genetic fusion between fibroblast growth factor receptor 3 (FGFR3) and transforming acidic coiled-coil 3 (TACC3) in non-small cell lung cancer (NSCLC), providing a novel target for FGFR inhibition. To interrogate the functional consequences of the FGFR3–TACC3 fusion in the transformation of lung epithelial cells, we generated a novel transgenic mouse model that expresses FGFR3–TACC3 concomitant with loss of the p53 tumor suppressor gene. Intranasal delivery of an Ad5-CMV-Cre virus promoted seromucinous glandular transformation of olfactory cells lining the nasal cavities of FGFR3–TACC3 (LSL–F3T3) mice, which was further accelerated upon loss of p53 (LSL–F3T3/p53). Surprisingly, lung tumors failed to develop in intranasally infected LSL–F3T3 and LSL–F3T3/p53 mice. In line with these observations, we demonstrated that intranasal delivery of Ad5-CMV-Cre induces widespread Cre-mediated recombination in the olfactory epithelium. Intra-tracheal delivery of Ad5-CMV-Cre into the lungs of LSL–F3T3 and LSL–F3T3/p53 mice, however, resulted in the development of lung adenocarcinomas. Taken together, these findings provide in vivo evidence for an oncogenic function of FGFR3–TACC3 in respiratory epithelium.
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U2 - 10.1038/s41388-018-0399-5
DO - 10.1038/s41388-018-0399-5
M3 - Article
C2 - 29991799
AN - SCOPUS:85049627782
VL - 37
SP - 6096
EP - 6104
JO - Oncogene
JF - Oncogene
SN - 0950-9232
IS - 46
ER -