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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Nedd4ltm1.1Hkb
targeted mutation 1.1, Hiroshi Kawabe
MGI:4940977
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Sftpctm1Swg/Sftpctm1Swg
Tg(Scgb1a1-rtTA2S*M2)38Bjd/0
Tg(tetO-cre)LC1Bjd/0
involves: 129P2/OlaHsd * 129S6/SvEvTac * BALB/c * C57BL/6 * C57BL/6N MGI:8407294
cn2
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Tg(Scgb1a1-rtTA2S*M2)38Bjd/0
Tg(tetO-cre)LC1Bjd/0
involves: 129P2/OlaHsd * BALB/c * C57BL/6 * C57BL/6N MGI:8407292
cn3
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Tg(SFTPC-rtTA)5Jaw/0
Tg(tetO-cre)1Jaw/0
involves: 129P2/OlaHsd * C57BL/6 * FVB/N * SJL MGI:4941006


Genotype
MGI:8407294
cn1
Allelic
Composition
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Sftpctm1Swg/Sftpctm1Swg
Tg(Scgb1a1-rtTA2S*M2)38Bjd/0
Tg(tetO-cre)LC1Bjd/0
Genetic
Background
involves: 129P2/OlaHsd * 129S6/SvEvTac * BALB/c * C57BL/6 * C57BL/6N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Nedd4ltm1.1Hkb mutation (0 available); any Nedd4l mutation (78 available)
Sftpctm1Swg mutation (1 available); any Sftpc mutation (27 available)
Tg(Scgb1a1-rtTA2S*M2)38Bjd mutation (0 available)
Tg(tetO-cre)LC1Bjd mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
respiratory system
• mice induced with doxycycline show neither an amelioration nor aggravation of the lung disease phenotype that is seen in conditional Nedd4l knock-out mice
• lungs from doxycycline treated mice show hallmarks of interstitial pulmonary fibrosis




Genotype
MGI:8407292
cn2
Allelic
Composition
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Tg(Scgb1a1-rtTA2S*M2)38Bjd/0
Tg(tetO-cre)LC1Bjd/0
Genetic
Background
involves: 129P2/OlaHsd * BALB/c * C57BL/6 * C57BL/6N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Nedd4ltm1.1Hkb mutation (0 available); any Nedd4l mutation (78 available)
Tg(Scgb1a1-rtTA2S*M2)38Bjd mutation (0 available)
Tg(tetO-cre)LC1Bjd mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice exhibit an overall mortality of 70% at 4 months on doxycycline
• mice induced with doxycycline exhibit mortality associated with severe weight loss and hypoxia after approximately 3 months on doxycycline, resulting in an overall mortality of 70% at 4 months on doxycycline

growth/size/body
• mice show severe weight loss after approximately 3 months on doxycycline

respiratory system
• bronchoalveolar lavage fluid shows activated macrophages and total cells, macrophages, neutrophils, and cytokines such as interleukin-1beta, keratinocyte-derived chemokine, and interleukin-13 are increased from 2-3 months on doxycycline
• inflammatory markers including neutrophils, and levels of IL-13 and IL-1beta in bronchoalveolar lavage fluid are reduced in lungs of pirfenidone-treated mice
• lungs from doxycycline treated mice show traction bronchiectasis
• lungs of doxycycline induced mice exhibit epithelial remodeling of the peripheral airways characterized by a decrease in club cells and increase in ciliated cells and goblet cells in distal and terminal airways and increase in production of Muc5b in epithelial cells along the tracheobronchial tree extending into terminal airways and in honeycomb-like cysts
• lungs from doxycycline treated mice show hypertrophy of alveolar type 2 cells
• lungs from doxycycline treated mice show hallmarks of interstitial pulmonary fibrosis, including reticular opacities, traction bronchiectasis, and honeycombing-like cysts with spatially heterogenous distribution in peripheral regions of the lung
• lungs from doxycycline treated mice show areas of patchy fibrosis of the alveolar interstitium associated with inflammatory infiltrates, alpha smooth muscle actin-positive fibroblast foci-like structures, increased collagen deposition, septal wall thickening, hypertrophy of alveolar type 2 cells, subpleural microscopic honeycombing-like cysts, and Muc5b-positive material within fibrotic areas of peripheral airspaces
• mice treated with pirfenidone for 4 weeks two months after tamoxifen induction, when lungs show first signs of fibrotic remodeling, exhibit reduced fibrosis
• increase in ENaC activity is associated with reduced airway surface liquid height and reduced mucociliary transport velocity on primary airway cultures
• pulmonary function testing shows progressive restriction with a 45% decrease in static compliance at 4 months on doxycycline
• mice treated with pirfenidone for 4 weeks two months after tamoxifen induction show improved static compliance
• transepithelial bioelectric measurements preformed after 2 weeks of doxycycline induction show an approximately 3-fold increase in amiloride-sensitive epithelial Na+ channel (ENaC)-mediated Na+ currents in freshly excised airway tissues

immune system
• bronchoalveolar lavage fluid shows activated macrophages and total cells, macrophages, neutrophils, and cytokines such as interleukin-1beta, keratinocyte-derived chemokine, and interleukin-13 are increased from 2-3 months on doxycycline
• inflammatory markers including neutrophils, and levels of IL-13 and IL-1beta in bronchoalveolar lavage fluid are reduced in lungs of pirfenidone-treated mice
• lungs from doxycycline treated mice show traction bronchiectasis

homeostasis/metabolism
• mice show hypoxia approximately 3 months on doxycycline
• lungs of doxycycline treated mice show elevated levels of active TGFbeta
• mice treated with pirfenidone for 4 weeks two months after tamoxifen induction show decreased concentrations of active TGFbeta in lungs

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
idiopathic pulmonary fibrosis DOID:0050156 J:292026




Genotype
MGI:4941006
cn3
Allelic
Composition
Nedd4ltm1.1Hkb/Nedd4ltm1.1Hkb
Tg(SFTPC-rtTA)5Jaw/0
Tg(tetO-cre)1Jaw/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Nedd4ltm1.1Hkb mutation (0 available); any Nedd4l mutation (78 available)
Tg(SFTPC-rtTA)5Jaw mutation (5 available)
Tg(tetO-cre)1Jaw mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die between 2 and 3 weeks of age likely from airway obstruction and asphyxiation

respiratory system
• mice exhibit large dense patches consisting of infiltrating neutrophils that is not secondary to bacterial infection unlike control mice
• however, treatment with amiloride reduces inflammation
• mice exhibit decreased lung wet/dry ratio compared with control mice
• however, treatment with amiloride improves lung defects
• mice exhibit cystic fibrosis-like defects unlike control mice
• mice exhibit increased nonciliated mucus secreting (mostly goblet) cells in the trachea unlike control mice
• mice exhibit increased nonciliated mucus secreting (mostly goblet) cells in the trachea unlike control mice
• airway periciliary liquid layer in the trachea is decreased in height compared to in control mice

immune system
• mice exhibit large dense patches consisting of infiltrating neutrophils that is not secondary to bacterial infection unlike control mice
• however, treatment with amiloride reduces inflammation





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last database update
07/14/2026
MGI 6.24
The Jackson Laboratory