1) Ewing's Sarcoma. Within the preceding year we have shown that zebrafish with EWS/FLI1 leads to mitotic defects with abnormal or multipolar mitotic spindles starting from the bud stage (10hpf). The abnormalities in mitotic spindles were followed by p53-mediated apoptosis in the developing central nervous system (CNS) leading to a reduction in the number of proneural cells, disorganization of neuronal networks, and embryonic lethality by 5 days post-fertilization. 2) Ovarian cancer. We have iidentified zebrafish harboring mutations in the zebrafish BRCA-2 gene. Zebrafish with homozygous mutation of brca2 fail to develop ovaries. However, they develop gonadal tumors over time, a process enhanced with loss of p53.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIABC010549-11
Application #
8763135
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
11
Fiscal Year
2013
Total Cost
$590,272
Indirect Cost
Name
National Cancer Institute Division of Basic Sciences
Department
Type
DUNS #
City
State
Country
Zip Code
Shive, Heather R; West, Robert R; Embree, Lisa J et al. (2014) BRCA2 and TP53 collaborate in tumorigenesis in zebrafish. PLoS One 9:e87177