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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(MMTV-cre)#Tfln
transgene insertion, Timothy F Lane
MGI:5688657
Summary 9 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Trp53tm1Brn/Trp53+
Tg(MMTV-cre)#Tfln/0
involves: 129P2/OlaHsd MGI:5000480
cn2
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
Trp53tm1Brn/Trp53+
involves: 129P2/OlaHsd * 129S6/SvEvTac MGI:5000479
cn3
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
involves: 129P2/OlaHsd * 129S6/SvEvTac MGI:5000478
cn4
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:5752199
cn5
Ptentm2Mak/Ptentm2Mak
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:5752193
cn6
Ptentm2Mak/Ptentm2Mak
Tg(MMTV-cre)#Tfln/0
involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:5752189
cn7
Ptentm1Hwu/Ptentm1Hwu
Tg(MMTV-cre)#Tfln/0
involves: 129S4/SvJae MGI:5688693
cn8
Gt(ROSA)26Sortm2(Pik3ca)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
involves: 129S6/SvEvTac MGI:5000482
cn9
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
involves: 129S6/SvEvTac MGI:5000477


Genotype
MGI:5000480
cn1
Allelic
Composition
Trp53tm1Brn/Trp53+
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-cre)#Tfln mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (235 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 92% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or poorly differentiated adenocarcinoma

endocrine/exocrine glands
• 92% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or poorly differentiated adenocarcinoma

integument
• 92% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or poorly differentiated adenocarcinoma




Genotype
MGI:5000479
cn2
Allelic
Composition
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
Trp53tm1Brn/Trp53+
Genetic
Background
involves: 129P2/OlaHsd * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan mutation (2 available); any Gt(ROSA)26Sor mutation (985 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (235 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• survival is reduced compared to mutant mice wild-type for Trp53

neoplasm
• 80% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or adenosquamous carcinoma
• radial scar and poorly differentiated adenocarcinomas are also observed, although at a lower frequency than in mutant mice not carrying Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan
• at a lower rate than in mutant mice homozygous for Trp53tm1Brn

endocrine/exocrine glands
• 80% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or adenosquamous carcinoma
• radial scar and poorly differentiated adenocarcinomas are also observed, although at a lower frequency than in mutant mice not carrying Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan

integument
• 80% of mice have mammary tumors
• many mice have tumors in more than one gland
• mammary tumors are either spindle/epithelial-mesenchymal transition or adenosquamous carcinoma
• radial scar and poorly differentiated adenocarcinomas are also observed, although at a lower frequency than in mutant mice not carrying Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:170898




Genotype
MGI:5000478
cn3
Allelic
Composition
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129P2/OlaHsd * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan mutation (2 available); any Gt(ROSA)26Sor mutation (985 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (235 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most die early with lymphoma/thymoma

neoplasm
• some mice have small mammary tumors

endocrine/exocrine glands
• some mice have small mammary tumors

integument
• some mice have small mammary tumors




Genotype
MGI:5752199
cn4
Allelic
Composition
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-cre)#Tfln mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (235 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• females develop mammary tumors with a latency of 16.9 months
• 30% of mammary tumors are mixed mesenchymal adenocarcinomas and 10% are adenosquamous carcinoma
• about 30% of tumors are classified as adeno-sacromatoid/spindle-cell/mesenchymal-like breast cancer
• 30% of mammary tumors are adenomyoepithelioma

endocrine/exocrine glands
• females develop mammary tumors with a latency of 16.9 months
• 30% of mammary tumors are mixed mesenchymal adenocarcinomas and 10% are adenosquamous carcinoma

integument
• females develop mammary tumors with a latency of 16.9 months
• 30% of mammary tumors are mixed mesenchymal adenocarcinomas and 10% are adenosquamous carcinoma




Genotype
MGI:5752193
cn5
Allelic
Composition
Ptentm2Mak/Ptentm2Mak
Trp53tm1Brn/Trp53tm1Brn
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptentm2Mak mutation (4 available); any Pten mutation (86 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (235 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• females develop mammary tumors with a latency of 11.3 months
• expression analysis indicates that mammary tumors resemble human claudin-low triple-negative-like breast cancer and show more mesenchymal features
• about 72% of tumors are classified as adeno-sacromatoid/spindle-cell/mesenchymal-like breast cancer, with the rest showing mixed mesenchymal plus adenocarcinomas or differentiated adenocarcinomas
• about 72% of tumors are classified as adeno-sacromatoid/spindle-cell/mesenchymal-like breast cancer
• 17% of mammary tumors are adenomyoepithelioma

endocrine/exocrine glands
• females develop mammary tumors with a latency of 11.3 months
• expression analysis indicates that mammary tumors resemble human claudin-low triple-negative-like breast cancer and show more mesenchymal features
• about 72% of tumors are classified as adeno-sacromatoid/spindle-cell/mesenchymal-like breast cancer, with the rest showing mixed mesenchymal plus adenocarcinomas or differentiated adenocarcinomas

integument
• females develop mammary tumors with a latency of 11.3 months
• expression analysis indicates that mammary tumors resemble human claudin-low triple-negative-like breast cancer and show more mesenchymal features
• about 72% of tumors are classified as adeno-sacromatoid/spindle-cell/mesenchymal-like breast cancer, with the rest showing mixed mesenchymal plus adenocarcinomas or differentiated adenocarcinomas

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:224955




Genotype
MGI:5752189
cn6
Allelic
Composition
Ptentm2Mak/Ptentm2Mak
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptentm2Mak mutation (4 available); any Pten mutation (86 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop mammary tumors after a latency of 26.4 months with 70% penetrance
• 25% of mammary tumors are adenosquamous carcinoma and 4% are acinar or poorly differentiated adenocarcinoma
• pregnancy accelerates tumor formation
• 4% of mammary tumors are spindle-cell/adenosarcoma
• 67% of mammary tumors are adenomyoepithelioma

integument
• mice develop mammary tumors after a latency of 26.4 months with 70% penetrance
• 25% of mammary tumors are adenosquamous carcinoma and 4% are acinar or poorly differentiated adenocarcinoma
• pregnancy accelerates tumor formation

endocrine/exocrine glands
• mice develop mammary tumors after a latency of 26.4 months with 70% penetrance
• 25% of mammary tumors are adenosquamous carcinoma and 4% are acinar or poorly differentiated adenocarcinoma
• pregnancy accelerates tumor formation




Genotype
MGI:5688693
cn7
Allelic
Composition
Ptentm1Hwu/Ptentm1Hwu
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ptentm1Hwu mutation (16 available); any Pten mutation (86 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• mammary glands exhibit much larger lobules on the 13th day of pregnancy

neoplasm
• develop mammary gland tumors as early as 2 months of age
• tumor incidence is increased with shortened latencies in multiparous females
• benign fibroadenomas
• pleiomorphic adenocarcinomas

endocrine/exocrine glands
• delay in the normal involution process and a decrease in cell apoptosis
• mammary glands exhibit much larger lobules on the 13th day of pregnancy
• virgin mammary duct epithelium exhibits increased proliferation at 5 weeks and 14 weeks of age
• virgin mammary ducts develop excessive side branches or small protrusions at 6 weeks of age
• mammary ducts grow much faster during puberty than in controls, leading to earlier occupancy of the fat pad and earlier disappearance of the terminal end buds than in controls
• virgin glands contain many lobuloalveolar buds which are normally seen during pregnancy indicating an acceleration in lobuloalveolar-like precocious differentiation
• develop mammary gland tumors as early as 2 months of age
• tumor incidence is increased with shortened latencies in multiparous females
• benign fibroadenomas
• pleiomorphic adenocarcinomas
• mammary glands after one pregnancy show intra-luminal focal cellular hyperplasia and dysplasia

integument
• delay in the normal involution process and a decrease in cell apoptosis
• mammary glands exhibit much larger lobules on the 13th day of pregnancy
• virgin mammary duct epithelium exhibits increased proliferation at 5 weeks and 14 weeks of age
• virgin mammary ducts develop excessive side branches or small protrusions at 6 weeks of age
• mammary ducts grow much faster during puberty than in controls, leading to earlier occupancy of the fat pad and earlier disappearance of the terminal end buds than in controls
• virgin glands contain many lobuloalveolar buds which are normally seen during pregnancy indicating an acceleration in lobuloalveolar-like precocious differentiation
• develop mammary gland tumors as early as 2 months of age
• tumor incidence is increased with shortened latencies in multiparous females
• benign fibroadenomas
• pleiomorphic adenocarcinomas
• mammary glands after one pregnancy show intra-luminal focal cellular hyperplasia and dysplasia




Genotype
MGI:5000482
cn8
Allelic
Composition
Gt(ROSA)26Sortm2(Pik3ca)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm2(Pik3ca)Egan mutation (0 available); any Gt(ROSA)26Sor mutation (985 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype




Genotype
MGI:5000477
cn9
Allelic
Composition
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan/Gt(ROSA)26Sor+
Tg(MMTV-cre)#Tfln/0
Genetic
Background
involves: 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(Pik3ca*H1047R)Egan mutation (2 available); any Gt(ROSA)26Sor mutation (985 available)
Tg(MMTV-cre)#Tfln mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• survival time is increased compared to mutant mice carrying Tg(MMTV-cre)1Mam

neoplasm
• develop a less diverse set of tumors compared to mutant mice carrying Tg(MMTV-cre)1Mam
• start to develop by 5 months of age in both virgin and multiparous mice
• 69% of mice have palpable mammary tumors at the time of death
• tumors are typically either adenosquamous carcinoma or adenomyoepithioma
• isolated lung metastases are seen in rare cases

integument
• start to develop by 5 months of age in both virgin and multiparous mice
• 69% of mice have palpable mammary tumors at the time of death
• tumors are typically either adenosquamous carcinoma or adenomyoepithioma
• isolated lung metastases are seen in rare cases

endocrine/exocrine glands
• start to develop by 5 months of age in both virgin and multiparous mice
• 69% of mice have palpable mammary tumors at the time of death
• tumors are typically either adenosquamous carcinoma or adenomyoepithioma
• isolated lung metastases are seen in rare cases

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:170898





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last database update
08/02/2024
MGI 6.24
The Jackson Laboratory