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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Apctm2Rfo
targeted mutation 2, Riccardo Fodde
MGI:4360657
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Apctm2Rfo/Apctm2Rfo B6.129P2-Apctm2Rfo MGI:4360682
ht2
Apctm2Rfo/Apc+ 129P2/OlaHsd-Apctm2Rfo MGI:4360686
ht3
Apctm2Rfo/Apc+ B6.129P2-Apctm2Rfo MGI:4360684
ht4
Apctm2Rfo/Apc+ (C57BL/6J x 129P2/OlaHsd)F1 MGI:4360685
cx5
Apctm2Rfo/Apc+
Smad4E6sad/Smad4+
involves: 129P2/OlaHsd * C57BL/6J MGI:4360688
cx6
Apctm2Rfo/Apc+
Ctnnb1tm1.2Wvv/Ctnnb1+
involves: 129P2/OlaHsd * C57BL/6J MGI:5430611


Genotype
MGI:4360682
hm1
Allelic
Composition
Apctm2Rfo/Apctm2Rfo
Genetic
Background
B6.129P2-Apctm2Rfo
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• during postnatal assessment, no mice are found




Genotype
MGI:4360686
ht2
Allelic
Composition
Apctm2Rfo/Apc+
Genetic
Background
129P2/OlaHsd-Apctm2Rfo
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Mammary adenocarcinomas from Apctm2Rfo/Apc+ mice

mortality/aging
• mice die prior to 18 weeks

neoplasm
• 29% of male mice develop gastrointestinal tumors
• in 94% of female mice and 50% of male mice
• in 11% of female mice and 29% of male mice

endocrine/exocrine glands
• in 94% of female mice and 50% of male mice

liver/biliary system
• in 11% of female mice and 29% of male mice

digestive/alimentary system
• 29% of male mice develop gastrointestinal tumors

integument
• in 94% of female mice and 50% of male mice




Genotype
MGI:4360684
ht3
Allelic
Composition
Apctm2Rfo/Apc+
Genetic
Background
B6.129P2-Apctm2Rfo
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Mammary adenocarcinomas from Apctm2Rfo/Apc+ mice

mortality/aging
• mice die prior to 16 weeks

neoplasm
• in 100% of virgin females and 29% of males
• all tumors exhibit squamous metaplasia
• however, mice do not exhibit an increased susceptibility to intestinal tumors
• primary mammary adenocarcinomas metastasize to the lungs
• in 29% of male mice
• all tumors exhibit squamous metaplasia

integument
• in 100% of virgin females and 29% of males
• all tumors exhibit squamous metaplasia
• however, mice do not exhibit an increased susceptibility to intestinal tumors
• primary mammary adenocarcinomas metastasize to the lungs

endocrine/exocrine glands
• in 100% of virgin females and 29% of males
• all tumors exhibit squamous metaplasia
• however, mice do not exhibit an increased susceptibility to intestinal tumors
• primary mammary adenocarcinomas metastasize to the lungs

liver/biliary system
• in 29% of male mice
• all tumors exhibit squamous metaplasia




Genotype
MGI:4360685
ht4
Allelic
Composition
Apctm2Rfo/Apc+
Genetic
Background
(C57BL/6J x 129P2/OlaHsd)F1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Mammary adenocarcinomas from Apctm2Rfo/Apc+ mice

mortality/aging
• mice die prior to 21 weeks

neoplasm
• lung micro- and macro-metastases
• mice develop epidermal cysts with increased multiplicity in male mice
• however, mice do not exhibit an increased susceptibility to intestinal tumors
• all tumors exhibit squamous metaplasia
• in 86% of virgin females and 31% of males
• primary mammary adenocarcinomas metastasize to the lungs (J:151494)
• mice develop metaplastic mammary adenocarcinoma, a subtype of triple-negative breast cancer (J:204440)
• 31% of male mice develop liver tumors
• however, female mice do not develop liver tumors
• all tumors exhibit squamous metaplasia
• mice develop desmoids with increased multiplicity in male mice

integument
• in 86% of virgin females and 31% of males
• primary mammary adenocarcinomas metastasize to the lungs (J:151494)
• mice develop metaplastic mammary adenocarcinoma, a subtype of triple-negative breast cancer (J:204440)
• with increased mutliplicity in males

endocrine/exocrine glands
• in 86% of virgin females and 31% of males
• primary mammary adenocarcinomas metastasize to the lungs (J:151494)
• mice develop metaplastic mammary adenocarcinoma, a subtype of triple-negative breast cancer (J:204440)

growth/size/body
• with increased mutliplicity in males

liver/biliary system
• 31% of male mice develop liver tumors
• however, female mice do not develop liver tumors
• all tumors exhibit squamous metaplasia

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:204440




Genotype
MGI:4360688
cx5
Allelic
Composition
Apctm2Rfo/Apc+
Smad4E6sad/Smad4+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
Smad4E6sad mutation (0 available); any Smad4 mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Phenotypic analysis of the compound in cis Apctm2Rfo/Apc+ Smad4E6sad/Smad4+ mouse model

neoplasm
• unlike in Apctm2Rfo heterozygotes, mice develop multiple gastro-intestinal tumors and adenomatous polyps
• similar to in Apctm2Rfo heterozygotes

digestive/alimentary system
• unlike in Apctm2Rfo heterozygotes, mice develop multiple gastro-intestinal tumors and adenomatous polyps

integument
• similar to in Apctm2Rfo heterozygotes

endocrine/exocrine glands
• similar to in Apctm2Rfo heterozygotes




Genotype
MGI:5430611
cx6
Allelic
Composition
Apctm2Rfo/Apc+
Ctnnb1tm1.2Wvv/Ctnnb1+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apctm2Rfo mutation (1 available); any Apc mutation (154 available)
Ctnnb1tm1.2Wvv mutation (0 available); any Ctnnb1 mutation (49 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

embryo
• anterior truncation





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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
04/16/2024
MGI 6.23
The Jackson Laboratory