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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Il6sttm1Ern
targeted mutation 1, Matthias Ernst
MGI:2388478
Summary 12 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Il6sttm1Ern/Il6sttm1Ern involves: 129S1/Sv MGI:4939802
hm2
Il6sttm1Ern/Il6sttm1Ern involves: 129S1/Sv * C57BL/6 MGI:3837032
cn3
Il6sttm1Ern/Il6sttm1Wme
Tg(Alb1-cre)7Gsc/?
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 * FVB/N MGI:3837205
cx4
Il6sttm1Ern/Il6sttm1Ern
Stat3tm1Aki/Stat3+
involves: 129P2/OlaHsd * 129S1/Sv MGI:3837309
cx5
Il6sttm1Ern/Il6sttm1Ern
Tiraptm1.1Pjh/Tiraptm1.1Pjh
involves: 129S1/Sv MGI:4939800
cx6
Il6sttm1Ern/Il6sttm1Ern
Stat1tm1Rds/Stat1tm1Rds
involves: 129S1/Sv MGI:3837310
cx7
Ifnar2tm1Pjh/Ifnar2tm1Pjh
Il6sttm1Ern/Il6sttm1Ern
involves: 129S1/Sv MGI:4939801
cx8
Il6tm1Kopf/Il6tm1Kopf
Il6sttm1Ern/Il6sttm1Ern
involves: 129S1/Sv * 129S2/SvPas MGI:3837308
cx9
Il6sttm1Ern/Il6st+
Smad3tm1Par/Smad3+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3837663
cx10
Il6sttm1Ern/Il6sttm1Ern
Tg(RP11-H2112)9Trme/0
involves: 129S1/Sv * C57BL/6J * DBA/2J MGI:5898092
cx11
Il6sttm1Ern/Il6sttm1Ern
Tg(RP11-H2112)5Trme/0
involves: 129S1/Sv * C57BL/6J * DBA/2J MGI:5898091
cx12
Gkn2tm1.1(KOMP)Vlcg/Gkn2tm1.1(KOMP)Vlcg
Il6sttm1Ern/Il6sttm1Ern
involves: 129S1/Sv * C57BL/6NTac MGI:5898089


Genotype
MGI:4939802
hm1
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice fail to survive beyond 72 hours after treatment with an LPS dose that is sub-lethal to wild-type mice

immune system
• LPS-treated mice exhibit a 4-fold increase in neutrophil influx into the peritoneal cavity with a 2-fold increase in the neutrophil-attractant CXCL11 compared with similarly treated wild-type mice
• LPS-treated mice exhibit a 3.5- and 2-fold (at 3 and 6 hours) increase in serum IL6 levels compared with similarly treated wild-type mice
• LPS-treated mice exhibit a 3- and 34-fold (at 3 and 6 hours) increase in IL6 at the site of injection compared with similarly treated wild-type mice
• LPS-treated mice exhibit an increase in serum IL6 (3.5-fold at 3 hours, 2-fold at 6 hours), IL6 secretion into the peritoneal cavity (3-fold at 3 hours, 32-fold at 6 hours), neutrophil infiltration into the peritoneal cavity, and increased mortality compared with similarly treated wild-type mice
• however, LPS-induced IL10 production is normal

homeostasis/metabolism
• LPS-treated mice exhibit a 3.5- and 2-fold (at 3 and 6 hours) increase in serum IL6 levels compared with similarly treated wild-type mice
• mice fail to survive beyond 72 hours after treatment with an LPS dose that is sub-lethal to wild-type mice

hematopoietic system
• LPS-treated mice exhibit a 4-fold increase in neutrophil influx into the peritoneal cavity with a 2-fold increase in the neutrophil-attractant CXCL11 compared with similarly treated wild-type mice




Genotype
MGI:3837032
hm2
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• age dependent enlargement of the proximal small intestine starting around 6-8 weeks of age
• hyperproliferative lesions in the antropyloric mucosa (J:79073)
• gastric outlet obstruction (J:79073)
• fewer mucus producing cells (J:79073)
• enlarged glandular structure with increased branching (J:79073)
• infiltrating lymphocytes abundant in the lamina propria and intraepithelial compartments (J:79073)
• non adenomatous stomach is hyperplastic with more pronounced rugae (J:87206)
• total area is increased from 16 weeks of age onward (J:87206)
• age dependent enlargement starting around 6-8 weeks of age
• completely resistant to 3.5% dextran sodium sulfate
• in mice over 20 weeks of age
• gastritis is seen in all adults
• mixed mononuclear cells and polymorphonuclear leukocytes involved

immune system
• age dependent enlargement starting around 6-8 weeks of age
• neutrophil infiltration of the peritoneal cavity peaks more rapidly in induced inflammation than in controls (6 vs 12 hrs)
• neutrophils cleared more rapidly than in controls in induced inflammation
• completely resistant to 3.5% dextran sodium sulfate
• gastritis is seen in all adults
• mixed mononuclear cells and polymorphonuclear leukocytes involved
• increased overall severity of arthritis induced with methylated bovine serum albumin

homeostasis/metabolism
• completely resistant to 3.5% dextran sodium sulfate

neoplasm
• presence of pseudopolyploid diffuse adenomatous lesions in the stomach (J:79073)
• become larger and more numerous with age (J:87206)
• involve dysplastic cells and branching tortuous gastric glands (J:87206)

skeleton
• increased overall severity of arthritis induced with methylated bovine serum albumin
• on trabecular bone surfaces
• trabecular numbers reduced, particularly in males
• trabecular thickness reduced, particularly in males

hematopoietic system
• age dependent enlargement starting around 6-8 weeks of age

growth/size/body
• age dependent enlargement starting around 6-8 weeks of age

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
stomach cancer DOID:10534 OMIM:613659
J:87206




Genotype
MGI:3837205
cn3
Allelic
Composition
Il6sttm1Ern/Il6sttm1Wme
Tg(Alb1-cre)7Gsc/?
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Il6sttm1Wme mutation (2 available); any Il6st mutation (80 available)
Tg(Alb1-cre)7Gsc mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
liver/biliary system
N
• do not suffer liver damage from ConA treatment if pretreated with Il6
• maximal DNA synthesis in hepatocytes after partial hepatectomy occurs after about 48 hours
• hepatocyte growth factor has no effect on hepatocyte proliferation unless administered with Il6




Genotype
MGI:3837309
cx4
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Stat3tm1Aki/Stat3+
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Stat3tm1Aki mutation (6 available); any Stat3 mutation (70 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• improved survival

immune system
N
• splenomegaly fails to develop (J:100160)
• neutrophil infiltration of the peritoneal cavity and subsequent clearance in induced inflammation normal (J:139226)
• response to arthritis induced with methylated serum albumin is comparable to control animals (J:142883)
• in LPS-treated mice compared with similarly treated Il6sttm1Ern homozygotes
• compared with LPS-treated Il6sttm1Ern homozygotes

digestive/alimentary system
N
• stomach size remains normal

neoplasm
N
• numbers of gastric adenomas is reduced

homeostasis/metabolism
• in LPS-treated mice compared with similarly treated Il6sttm1Ern homozygotes




Genotype
MGI:4939800
cx5
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Tiraptm1.1Pjh/Tiraptm1.1Pjh
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Tiraptm1.1Pjh mutation (0 available); any Tirap mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• in LPS-treated mice compared with similarly treated Il6sttm1Ern homozygotes
• LPS-treated mice exhibit increased survival and decreased serum IL6 compared with similarly treated Il6sttm1Ern homozygotes

homeostasis/metabolism
• in LPS-treated mice compared with similarly treated Il6sttm1Ern homozygotes




Genotype
MGI:3837310
cx6
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Stat1tm1Rds/Stat1tm1Rds
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Stat1tm1Rds mutation (4 available); any Stat1 mutation (72 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• neutrophil infiltration of the peritoneal cavity peaks more rapidly in induced inflammation than in controls
• neutrophils cleared more rapidly than in controls in induced inflammation




Genotype
MGI:4939801
cx7
Allelic
Composition
Ifnar2tm1Pjh/Ifnar2tm1Pjh
Il6sttm1Ern/Il6sttm1Ern
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ifnar2tm1Pjh mutation (4 available); any Ifnar2 mutation (42 available)
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice fail to survive beyond 72 hours after treatment with an LPS dose that is sub-lethal to wild-type mice

immune system
• mice fail to survive beyond 72 hours after treatment with an LPS dose that is sub-lethal to wild-type mice
• LPS-treated mice exhibit an increase in IL6 serum levels compared with similarly treated wild-type mice

homeostasis/metabolism
• mice fail to survive beyond 72 hours after treatment with an LPS dose that is sub-lethal to wild-type mice




Genotype
MGI:3837308
cx8
Allelic
Composition
Il6tm1Kopf/Il6tm1Kopf
Il6sttm1Ern/Il6sttm1Ern
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Il6tm1Kopf mutation (9 available); any Il6 mutation (37 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• neutrophil infiltration of the peritoneal cavity and subsequent clearance in induced inflammation normal
• mice are resistant to LPS-induced shock




Genotype
MGI:3837663
cx9
Allelic
Composition
Il6sttm1Ern/Il6st+
Smad3tm1Par/Smad3+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Smad3tm1Par mutation (2 available); any Smad3 mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• develop antral adenomas by 13-24 weeks of age




Genotype
MGI:5898092
cx10
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Tg(RP11-H2112)9Trme/0
Genetic
Background
involves: 129S1/Sv * C57BL/6J * DBA/2J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Tg(RP11-H2112)9Trme mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• decrease in the overall thickness of the antral mucosa compared to mice homozygous for the Il6st mutation not carrying the transgene
• decrease in antral tumor growth compared to mice homozygous for the Il6st mutation not carrying the transgene suggesting overexpression of GNK2 as a possible therapy for gastric cancer

hematopoietic system
• decrease in the splenomegaly phenotype typically seen in mice homozygous for the Il6st mutation not carrying the transgene

neoplasm
• decrease in antral tumor growth compared to mice homozygous for the Il6st mutation not carrying the transgene suggesting overexpression of GNK2 as a possible therapy for gastric cancer

immune system
• decrease in the splenomegaly phenotype typically seen in mice homozygous for the Il6st mutation not carrying the transgene




Genotype
MGI:5898091
cx11
Allelic
Composition
Il6sttm1Ern/Il6sttm1Ern
Tg(RP11-H2112)5Trme/0
Genetic
Background
involves: 129S1/Sv * C57BL/6J * DBA/2J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
Tg(RP11-H2112)5Trme mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• decrease in the overall thickness of the antral mucosa compared to mice homozygous for the Il6st mutation not carrying the transgene
• decrease in antral tumor growth compared to mice homozygous for the Il6st mutation not carrying the transgene suggesting overexpression of GNK2 as a possible therapy for gastric cancer

hematopoietic system
• decrease in the splenomegaly phenotype typically seen in mice homozygous for the Il6st mutation not carrying the transgene

neoplasm
• decrease in antral tumor growth compared to mice homozygous for the Il6st mutation not carrying the transgene suggesting overexpression of GNK2 as a possible therapy for gastric cancer

immune system
• decrease in the splenomegaly phenotype typically seen in mice homozygous for the Il6st mutation not carrying the transgene




Genotype
MGI:5898089
cx12
Allelic
Composition
Gkn2tm1.1(KOMP)Vlcg/Gkn2tm1.1(KOMP)Vlcg
Il6sttm1Ern/Il6sttm1Ern
Genetic
Background
involves: 129S1/Sv * C57BL/6NTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gkn2tm1.1(KOMP)Vlcg mutation (1 available); any Gkn2 mutation (22 available)
Il6sttm1Ern mutation (13 available); any Il6st mutation (80 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• corpus tumors display poorly differentiated and hyperplastic epithelium histologically
• in the corpus mucosa as a result of tumor formation
• however, antral mucosa thickness is similar to Il6st single mutants
• unlike Il6st single mutants which develop primarily antral tumors, double mutants show extensive focal tumorigenesis of the corpus and squamous epithelium overlying the limiting ridge of the corpus/forestomach junction at 12 weeks of age
• increase in both the number of corpus tumor foci and macroscopic corpus tumor area
• however, antral tumor load is similar to Il6st single mutants

neoplasm
• unlike Il6st single mutants which develop primarily antral tumors, double mutants show extensive focal tumorigenesis of the corpus and squamous epithelium overlying the limiting ridge of the corpus/forestomach junction at 12 weeks of age
• increase in both the number of corpus tumor foci and macroscopic corpus tumor area
• however, antral tumor load is similar to Il6st single mutants





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory