About   Help   FAQ
Phenotype Image Detail
Image
Caption A: Bony outgrowth or osteophyte formation. Mason's trichrome staining for collagen (blue) or safranin O staining for proteoglycans (red) was performed on knee joint sections prepared from a 3-month-old Errfi1tm1Gvw/Errfi1tm1Gvw mouse. Arrows indicate the abnormal outgrowing nodules that have abundant collagen and proteoglycan. Von Kossa staining of calcium deposition was performed on undecalcified knee joint sections prepared from a 5.5-month-old homozygous mutant mouse. Arrowheads indicate matrical calcium in the inner zone of the nodules. B: Degradation of articular cartilage. Arrows indicate rough joint surface and degraded articular cartilage in a 4-month-old mutant mouse knee joint stained with safranin O. C: Subchondral cyst formation. Two large cysts filled with or lacking fibroblast-like cells are observed beneath degraded articular cartilage in a 3-month-old mutant mouse knee joint as indicated by the arrowheads. D: Synovial hyperplasia. H&E knee joint sections were prepared from 2-month-old age-matched heterozygous and homozygous mutant mice. Compared with a thin layer of synovial lining in a heterozygous joint (normal), multilayers of synovial lining cells (Sy) are observed in a mutant mouse joint. E: Vascularization in the normally avascular joint region. Various size of blood vessels indicated by arrows are observed in a 4-month-old mutant knee joint, accompanied by newly repaired tissues.
Copyright This image is from Zhang YW, Proc Natl Acad Sci U S A 2005 Aug 16;102(33):11740-5. Copyright 2005 National Academy of Sciences, U.S.A. J:100927
Associated
Alleles
Symbol Name
Errfi1tm1Gvw ERBB receptor feedback inhibitor 1; targeted mutation 1, George F Vande Woude
Associated
Genotypes
Allelic Composition Genetic Background
Errfi1tm1Gvw/Errfi1tm1Gvw Not Specified

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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
12/10/2024
MGI 6.24
The Jackson Laboratory