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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Mt1-TGFBR2*)AM3Epb
transgene insertion AM3, Erwin P Bottinger
MGI:5806465
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Tg(Ela-KRAS*G12D)9Eps/0
Tgfbr1tm1Bopa/Tgfbr1+
Tg(Mt1-TGFBR2*)AM3Epb/0
involves: 129S1/SvImJ * C57BL/6 * FVB MGI:5806471
cx2
Tg(Ela-KRAS*G12D)9Eps/0
Tg(Mt1-TGFBR2*)AM3Epb/0
involves: C57BL/6 * FVB MGI:5806468
tg3
Tg(Mt1-TGFBR2*)AM3Epb/0 involves: FVB/N MGI:5806466


Genotype
MGI:5806471
cx1
Allelic
Composition
Tg(Ela-KRAS*G12D)9Eps/0
Tgfbr1tm1Bopa/Tgfbr1+
Tg(Mt1-TGFBR2*)AM3Epb/0
Genetic
Background
involves: 129S1/SvImJ * C57BL/6 * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Ela-KRAS*G12D)9Eps mutation (0 available)
Tgfbr1tm1Bopa mutation (0 available); any Tgfbr1 mutation (36 available)
Tg(Mt1-TGFBR2*)AM3Epb mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• mice are protected against pancreatic lesion formation

neoplasm
• mice are protected against pancreatic lesion formation




Genotype
MGI:5806468
cx2
Allelic
Composition
Tg(Ela-KRAS*G12D)9Eps/0
Tg(Mt1-TGFBR2*)AM3Epb/0
Genetic
Background
involves: C57BL/6 * 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
endocrine/exocrine glands
• expansion of the pancreatic stroma
• mice show extensive intraductal papillary neoplasm development and associated parenchymal loss
• pancreatic lesions are accompanied with more severe fibrosis and heavy matrix deposition
• mice develop pancreatic acinar-to-ductal metaplasia
• increase in proliferating cell nuclear antigen (PCNA) staining throughout the entire pancreas
• mice display marked pancreatic inflammation

hematopoietic system
• total T-cell infiltration near pancreatic lesions is increased, with increased CD3/pSMAD2+ and CD3/FOXP3+ cell (suppressive/anergic regulatory T lymphocytes) infiltration but very little CD8+ infiltration

immune system
• mice display marked pancreatic inflammation
• total T-cell infiltration near pancreatic lesions is increased, with increased CD3/pSMAD2+ and CD3/FOXP3+ cell (suppressive/anergic regulatory T lymphocytes) infiltration but very little CD8+ infiltration

neoplasm
• mice show extensive intraductal papillary neoplasm development and associated parenchymal loss

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
pancreatic carcinoma DOID:4905 OMIM:260350
J:231759




Genotype
MGI:5806466
tg3
Allelic
Composition
Tg(Mt1-TGFBR2*)AM3Epb/0
Genetic
Background
involves: FVB/N
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
digestive/alimentary system
• acini are replaced by primitive ductular structures harboring transitional cells, characterized by ductal morphology but containing zymogen granules
• tubular complexes resulting from dedifferentiation of acini into ductal structures are present in severely affected pancreatic lobules with increasing age
• pancreas exhibits adipose replacement of acini in the exocrine pancreas
• 21% of 14 month or older mutants exhibit eosinophilic foci of acinar cells, indicating focal hyperplasia
• pancreas shows ductular transformation
• increase in the proportion of proliferating acinar cells in the pancreas at 6 weeks and 8 months of age
• however, aberrant ductular epithelial cells in the pancreas do not show evidence of increased proliferative activity

endocrine/exocrine glands
• pancreas is lighter in color at 5 months of age
• pancreas shows neo-angiogenesis
• expansion of the extracellular matrix in the pancreas of 8 month old mice
• however, islets of Langerhans are normal
• acini are replaced by primitive ductular structures harboring transitional cells, characterized by ductal morphology but containing zymogen granules
• tubular complexes resulting from dedifferentiation of acini into ductal structures are present in severely affected pancreatic lobules with increasing age
• pancreas exhibits adipose replacement of acini in the exocrine pancreas
• 21% of 14 month or older mutants exhibit eosinophilic foci of acinar cells, indicating focal hyperplasia
• pancreas shows ductular transformation
• relative pancreatic weight is decreased at 8 months of age
• inter- and intralobular fibrosis develops by 5 months of age and increases progressively
• acino-ductal metaplasia is seen in some young mice and are frequently seen in older mice, often transforming entire lobules
• large numbers of apoptotic cells are seen in the pancreas of 6 week old mice
• increase in the proportion of proliferating acinar cells in the pancreas at 6 weeks and 8 months of age
• however, aberrant ductular epithelial cells in the pancreas do not show evidence of increased proliferative activity
• increase in macrophage infiltration in the pancreas

immune system
• increase in macrophage infiltration in the pancreas





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory