endocrine/exocrine glands
• colon displays defined but shortened crypt
|
• placode 3 is not detected at E11.5 and E12.5
|
homeostasis/metabolism
• in mutants gelatinase activity in the lung mesenchyme is decreased
|
respiratory system
• at E12.5, embryos have lungs with decreased branching
|
small lung
(
J:98521
)
• at E12.5 mice have slightly smaller lungs than wild-type
|
• at birth, elastin deposition around the bronchi is reduced compared to wild-type
|
digestive/alimentary system
• mice exhibit epithelial hypocellularity along the proximal-distal axis of the colon
|
• colon displays defined but shortened crypt
|
• at E18.5, the colon is 56% of wild-type length
• mid region exhibits enlarged lumen with rudimentary crypts and meconium accumulation in lumen
|
embryo
• mutants fail to generate a stratum intermedium at E11.5
• cells of the stratum germinativum are still cuboidal at E11, not cylindrical
|
integument
• placode 3 is not detected at E11.5 and E12.5
|