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Phenotypes Associated with This Genotype
Genotype
MGI:5565602
Allelic
Composition
Tg(Pbsn-Fgfr1/Fkbp1a)#aDmsp/0
Genetic
Background
FVB-Tg(Pbsn-Fgfr1/Fkbp1a)#aDmsp
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• prostate tumor types that develop following prolonged AP20187 treatment include adenocarcinoma, transitional sarcomatoid-carcinoma, and rare frank sarcoma and show hallmarks of epithelial-to-mesenchymal transition
• 100% of mice develop adenocarcinoma in all prostatic lobes after 42 weeks of treatment with a chemical inducer of dimerization, AP20187
• adenocarcinoma lesions are characterized by presence of invasive hyperchromatic epithelial cells with prominent nucleoli and nuclear atypia along with the formation of multiple small invasive glands within desmoplastic stroma
• maker analysis indicates that tumors are epithelial cell derived and are invasive adenocarcinoma and not neuroendocrine carcinoma
• withdrawal of AP20187 for 20 weeks after 42 weeks of treatment reduces prostate adenocarcinoma progression and cell proliferation, although it does not result in regression
• mice develop low-grade prostate intraepithelial neoplasia (PIN; type I and II) in the ventral, dorsal-lateral, and anterior prostate after 12 weeks of treatment with a chemical inducer of dimerization, AP20187 (J:87092)
• low-grade PIN is characterized by epithelial piling-up, elongated and hyperchromatic nuclei, and cribiform glandular structures, and stromal thickening in the dorsal lobes of some mice (J:87092)
• by 24 to 30 weeks of AP20187 administration, grade IV PINs are seen, showing extensive dysplastic nuclei, thickened reactive stroma, and herniated acini with extraglandular extension (J:87092)
• withdrawal of AP20187 for 34 weeks after 12 weeks of administration results in PIN reversion (J:130340)
• mice that develop sarcomas following prolonged AP20187 treatment show distant metastasis to the liver and lymph nodes
• after prolonged treatment with AP20187, mice develop rare frank sarcomas which show distant metastasis to the liver and lymph nodes

endocrine/exocrine glands
• increase in prostate gland hyperplasia following AP20187 administration
• withdrawal of AP20187 after 4 weeks of treatment reverses the prostate hyperplasia, however withdrawal of AP20187 after 8 weeks of treatment when neovascularization is observed, does not reverse the hyperplasia although further progression to low-grade PIN was not seen
• the increase in prostate gland hyperplasia following AP20187 administration is due to increased proliferation in the prostate gland
• prostate tumor types that develop following prolonged AP20187 treatment include adenocarcinoma, transitional sarcomatoid-carcinoma, and rare frank sarcoma and show hallmarks of epithelial-to-mesenchymal transition
• 100% of mice develop adenocarcinoma in all prostatic lobes after 42 weeks of treatment with a chemical inducer of dimerization, AP20187
• adenocarcinoma lesions are characterized by presence of invasive hyperchromatic epithelial cells with prominent nucleoli and nuclear atypia along with the formation of multiple small invasive glands within desmoplastic stroma
• maker analysis indicates that tumors are epithelial cell derived and are invasive adenocarcinoma and not neuroendocrine carcinoma
• withdrawal of AP20187 for 20 weeks after 42 weeks of treatment reduces prostate adenocarcinoma progression and cell proliferation, although it does not result in regression
• mice develop low-grade prostate intraepithelial neoplasia (PIN; type I and II) in the ventral, dorsal-lateral, and anterior prostate after 12 weeks of treatment with a chemical inducer of dimerization, AP20187 (J:87092)
• low-grade PIN is characterized by epithelial piling-up, elongated and hyperchromatic nuclei, and cribiform glandular structures, and stromal thickening in the dorsal lobes of some mice (J:87092)
• by 24 to 30 weeks of AP20187 administration, grade IV PINs are seen, showing extensive dysplastic nuclei, thickened reactive stroma, and herniated acini with extraglandular extension (J:87092)
• withdrawal of AP20187 for 34 weeks after 12 weeks of administration results in PIN reversion (J:130340)
• mice develop fluid-filled prostatic cysts after 52 weeks of treatment with a chemical inducer of dimerization, AP20187

reproductive system
• increase in prostate gland hyperplasia following AP20187 administration
• withdrawal of AP20187 after 4 weeks of treatment reverses the prostate hyperplasia, however withdrawal of AP20187 after 8 weeks of treatment when neovascularization is observed, does not reverse the hyperplasia although further progression to low-grade PIN was not seen
• the increase in prostate gland hyperplasia following AP20187 administration is due to increased proliferation in the prostate gland
• prostate tumor types that develop following prolonged AP20187 treatment include adenocarcinoma, transitional sarcomatoid-carcinoma, and rare frank sarcoma and show hallmarks of epithelial-to-mesenchymal transition
• 100% of mice develop adenocarcinoma in all prostatic lobes after 42 weeks of treatment with a chemical inducer of dimerization, AP20187
• adenocarcinoma lesions are characterized by presence of invasive hyperchromatic epithelial cells with prominent nucleoli and nuclear atypia along with the formation of multiple small invasive glands within desmoplastic stroma
• maker analysis indicates that tumors are epithelial cell derived and are invasive adenocarcinoma and not neuroendocrine carcinoma
• withdrawal of AP20187 for 20 weeks after 42 weeks of treatment reduces prostate adenocarcinoma progression and cell proliferation, although it does not result in regression
• mice develop low-grade prostate intraepithelial neoplasia (PIN; type I and II) in the ventral, dorsal-lateral, and anterior prostate after 12 weeks of treatment with a chemical inducer of dimerization, AP20187 (J:87092)
• low-grade PIN is characterized by epithelial piling-up, elongated and hyperchromatic nuclei, and cribiform glandular structures, and stromal thickening in the dorsal lobes of some mice (J:87092)
• by 24 to 30 weeks of AP20187 administration, grade IV PINs are seen, showing extensive dysplastic nuclei, thickened reactive stroma, and herniated acini with extraglandular extension (J:87092)
• withdrawal of AP20187 for 34 weeks after 12 weeks of administration results in PIN reversion (J:130340)
• mice develop fluid-filled prostatic cysts after 52 weeks of treatment with a chemical inducer of dimerization, AP20187

growth/size/body
• mice develop fluid-filled prostatic cysts after 52 weeks of treatment with a chemical inducer of dimerization, AP20187


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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory