Mouse Genome Informatics
tg
    Tg(Msr1-MMP9)#Apar/0
B6.Cg-Tg(Msr1-MMP9)#Apar
Key:
phenotype observed in females WTSI Wellcome Trust Sanger Institute
phenotype observed in males EuPh Europhenome
N normal phenotype
       
respiratory system
• a marked decrease in elastin content is seen in alveolar regions of 1 year old mutants, with a decrease in the fractional volume area of fibrils within the alveolar walls
• majority of mutants treated with bleomycin at 8-10 weeks of age exhibit emphysematous-like lesions in the lungs with ageing (at 18-24 weeks of age) (J:129959)
• mutants exhibit progressive air space enlargement, showing a progressive increase in the mean linear intercept after 2 months of age, indicating emphysema development (J:136830)
• the increase in mean linear intercept is equal to or greater than that reported in cigarette smoke-exposure model of emphysema (J:136830)

immune system
N
• mutants do not show airway inflammation (J:136830)
• macrophages exhibit increased gelatinolytic activity
• mutants exhibit a different inflammatory response in the lungs in response to bleomycin than treated wild-type mice, showing a decrease in neutrophils and lymphocytes in bronchoalveolar lavage fluid compared to wild-type mice
• mutants develop less extensive pulmonary fibrosis at 8 weeks after bleomycin instillation than wild-type mice
• hydroxyproline, collagen, IGFBP3 and TIMP1 levels are significantly lower at 8 weeks after bleomycin instillation than wild-type mice

hematopoietic system
• macrophages exhibit increased gelatinolytic activity

Mouse Models of Human Disease
OMIM IDRef(s)
Emphysema, Hereditary Pulmonary 130700 J:136830