Mouse Genome Informatics
involves: C57BL/6JJcl * DBA/2J
phenotype observed in females WTSI Wellcome Trust Sanger Institute
phenotype observed in males EuPh Europhenome
N normal phenotype
• mandible is enlarged, eroded and discolored, containing a large mass of soft tissue (J:157947)
• at the ameloblast enamel interface the regular pattern of Tomes' process insertions is absent and instead there is a disorganized vesicular pattern (J:157947)
• in both incisors and molars, ameloblasts appear to lose contact with their sub-adjacent matrix and their cytoplasm becomes atypically eosinophilic (J:157947)
• in the transition and maturation zones cells become highly disorganized with the ameloblasts losing their characteristic columnar morphology and forming a multi cellular (J:157947)
• much of debris of the multi cellular masses is either TUNEL- or activated caspase-3-positive (J:157947)
• eosinophilic structures are visible throughout the cell and appear to be vesicular in nature with accumulations of both amelogenin and ameloblastin in affected cells (J:157947)
• contact of the ameloblasts with the enamel matrix is lost leading to the formation of out-pocketings containing eosinophilic material (J:157947)
• the mineralizing enamel distal to the white opaque zone is irregular and discolored with ridges perpendicular to the long axis of the incisor (J:157947)
• entire enamel surface is roughened opaque and chalky white (J:157947)
• frequently have an irregular incisal edge (J:157947)
• opaque and chalky white enamel (J:157947)
• the upper and lower incisors are shortened (J:157947)
• opaque and roughened, with abrasion of the cusps (J:157947)
• the upper and lower incisors are uneven and present a chalky white, opaque appearance with roughened/pitted surfaces (J:157947)
• large areas of the teeth lack enamel (J:157947)
• by SEM enamel is severely dysplastic non-prismatic 'enamel' with a smooth glass-like appearance and no evidence of clear prismatic structure (J:157947)
• shortened with irregular incisal edge (J:157947)

• mandible is enlarged, eroded and discolored, containing a large mass of soft tissue (J:157947)

Mouse Models of Human Disease
Amelogenesis Imperfecta, Type IE; AI1E 301200 J:157947