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Phenotypes Associated with This Genotype
Genotype
MGI:5565703
Allelic
Composition
Tg(Pbsn-FGFR1*K656E)#Wmck/0
Genetic
Background
involves: FVB
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
mortality/aging
• mortality increases by 30 weeks of age, with a mortality rate of about 55% over 6-9 months of age
• mortality is due to urinary restriction

neoplasm
• hyperplasia accompanied by intermediate grade prostatic intraepithelial neoplasia (PIN) is evident in enlarged prostates at 6-8 months of age
• higher grade PIN appears with aging after 20 months without signs of overt invasive carcinoma

endocrine/exocrine glands
• prostates show increased size and weight after 20 weeks of age
• hyperplasia in epithelial, and to a lesser extent, stromal compartments and nuclear atypia in epithelial cells of the prostate with increasing age
• hyperplasia accompanied by intermediate grade prostatic intraepithelial neoplasia (PIN) is evident in enlarged prostates at 6-8 months of age
• higher grade PIN appears with aging after 20 months without signs of overt invasive carcinoma
• the prostate regenerative response to androgen is accelerated in orchiectomized mice

renal/urinary system
• mice exhibit severe urinary tract obstruction most likely due to hyperplasia of the prostate
• urethra is packed with noninvasive hyperplastic epithelial cells extending from the prostate

reproductive system
• prostates show increased size and weight after 20 weeks of age
• hyperplasia in epithelial, and to a lesser extent, stromal compartments and nuclear atypia in epithelial cells of the prostate with increasing age
• hyperplasia accompanied by intermediate grade prostatic intraepithelial neoplasia (PIN) is evident in enlarged prostates at 6-8 months of age
• higher grade PIN appears with aging after 20 months without signs of overt invasive carcinoma
• the prostate regenerative response to androgen is accelerated in orchiectomized mice
• a fraction of males cease reproductive activity by 6 months of age


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
01/28/2026
MGI 6.24
The Jackson Laboratory