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| These FABP-hCFTR-CFTR bitransgenic mice harbor the FABP-hCFTR transgene (human fatty acid binding protein 1 liver (FABP1) promoter directing expression of a human cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C, member 7) (CFTR) gene) and a targeted mutation of the cystic fibrosis transmembrane conductance regulator homolog gene (Cftr), and may be useful as a mouse model of Cystic Fibrosis. | |||||||||
Type Mutant Stock; Targeted Mutation; Transgenic; Additional information on Genetically Engineered and Mutant Mice. Visit our online Nomenclature tutorial. Species laboratory mouse Donating Investigator Jeffrey Whitsett, Children's Hospital Medical Center Appearance
agouti
Related Genotype: A/ADescription
These FABP-hCFTR-CFTR bitransgenic mice harbor the FABP-hCFTR transgene (human fatty acid binding protein 1 liver (FABP1) promoter directing expression of a human cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C, member 7) (CFTR) gene) and a targeted mutation of the cystic fibrosis transmembrane conductance regulator homolog gene (Cftr). Mice homozygous for the Cftr targeted mutation and the FABP-hCFTR transgene have normal longevity up to nine months (longest time examined). There is correction of ileal goblet cell and crypt cell hyperplasia and cAMP-stimulated chloride secretion. There is little or no expression of the transgene in the lung. This more robust model may be used to assess the effects of the null mutation on the nose and lungs, and may be useful as a mouse model of Cystic Fibrosis.
| Control | ||
|---|---|---|
| None Available | (approximate) | |
| Considerations for Choosing Controls | ||
Strains carrying Cftrtm1Unc allele
002196 B6.129P2-Cftrtm1Unc/J View Strains carrying Cftrtm1Unc (1 strain)
Strains carrying other alleles of Cftr
002515 B6.129S6-Cftrtm1Kth/J View Strains carrying other alleles of Cftr (1 strain)
View Mammalian Phenotype Terms
Mammalian Phenotype Terms
assigned by genotype
Cftrtm1Unc/Cftrtm1Unc Tg(FABPCFTR)1Jaw/0
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
- digestive/alimentary phenotype
- abnormal cecum morphology (MGI Ref ID J:21934)
- transgene expression prevents the coiled "worm-like" structure of the cecum that occurs in Cftrtm1Unc homozygotes
- abnormal intestinal goblet cells (MGI Ref ID J:21934)
- goblet cell hyperplasia occurs in the colon
- transgene expression prevents the goblet cell hyperplasia that occurs in the small intestine of Cftrtm1Unc homozygotes
- homeostasis/metabolism phenotype
- abnormal ion homeostasis (MGI Ref ID J:21934)
- cyclic-AMP stimulated transport of Cl- ions does not occur in the large intestine
- cyclic-AMP stimulated transport of Cl- ions that is absent in the small intestinal epithelium of Cftrtm1Unc homozygotes is restored in these mice
- lethality-postnatal
- *normal* lethality-postnatal (MGI Ref ID J:21934)
- the high lethality rate of Cftrtm1Unc homozyotes is prevented by the presence of the Tg(FABPCFTR)1Jaw transgene
- immune system phenotype
- abnormal macrophage physiology (MGI Ref ID J:129519)
- cAMP-induced currents CL- in alveolar macrophages are absent in these mice
- cultured alveolar macrophages are impaired in their ability to kill bacteria that have been phagocytosed
- alveolar macrophages contain 4 times more live intracellular P. aeruginosa bacteria than controls 4 hours after infection
- defective killing of E. Coli in culture also occurs with 3 times more surviving bacteria found two hours post-infection than in controls
- lysosome acidification is defective in alveolar macrophage with pH being at least 1 unit higher than in controls
View Research Applications
Research Applications
This mouse can be used to support research in many areas including:
Cftrtm1Unc relatedImmunology and Inflammation Research
Cystic Fibrosis
Metabolism Research
Mouse/Human Gene Homologs
cystic fibrosis
| Allele Symbol | Cftrtm1Unc | ||
|---|---|---|---|
| Allele Name | targeted mutation 1, University of North Carolina | ||
| Allele Type | Targeted (knock-out) | ||
| Common Name(s) | CFTR S489X-; Cftr-; Cftr-.ko; CftrUNC; S489X; UNC; cftrm1UNC; mCFTR-; | ||
| Mutation Made By | Oliver Smithies, University of North Carolina | ||
| Strain of Origin | 129P2/OlaHsd | ||
| ES Cell Line Name | E14TG2a | ||
| ES Cell Line Strain | 129P2/OlaHsd | ||
| Gene Symbol and Name | Cftr, cystic fibrosis transmembrane conductance regulator homolog | ||
| Chromosome | 6 | ||
| Gene Common Name(s) | ABC35; ABCC7; AW495489; CF; CFTR/MRP; MRP7; RGD1561193; TNR-CFTR; dJ760C5.1; expressed sequence AW495489; | ||
| General Note |
Epithelial tissue from the gastrointestinal tract and airways exhibit abnormal cyclic AMP-mediated chloride ion transport similar to that observed in CF patients (J:23817). Heterozygotes secrete half the wild-type amount of intestinal fluid in response to cholera toxin. This is proposed asan advantage for these heterozygotes, providing protection from the dehydration resulting from cholera. A similar effect of the human CFTR mutation might account for the high frequency of mutant genes in the human population (J:20778). | ||
| Molecular Note | A neomycin selection cassette was inserted into exon 10 at sequences corresponding to codon 489 of the encoded protein. The authors predict that a truncated protein with amino acid 488 changed from isoleucine to alanine and a stop codon at position 489 are produced from this allele. [MGI Ref ID J:2079] | ||
| Allele Symbol | Tg(FABPCFTR)1Jaw | ||
| Allele Name | transgene insertion 1, Jeffrey A Whitsett | ||
| Allele Type | Transgenic (random, expressed) | ||
| Common Name(s) | FABP-hCFTR; | ||
| Mutation Made By | Jeffrey Whitsett, Children's Hospital Medical Center | ||
| Strain of Origin | FVB/N | ||
| Expressed Gene | CFTR, cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C, member 7), human | ||
| Promoter | FABP1, fatty acid binding protein 1, liver, human | ||
| Molecular Note | The transgene contains human sequences for the fatty acid-binding protein (FABP) promoter and the cystic fibrosis transmembrane conductance regulator homolog (CFTR) gene. Expression of the transgene was abundant in the ileum, jejunum, and duodenum and less abundant in the cecum and the colon. [MGI Ref ID J:21934] | ||
Genotyping Protocols
Cftrtm1Unc, STD PCR, vers. 2
Tg(FABPCFTR)1Jaw, STD PCR, vers. 2
Helpful Links
Optimizing PCR Protocols
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De Lisle RC; Petitt M; Isom KS; Ziemer D. 1998. Developmental expression of a mucinlike glycoprotein (MUCLIN) in pancreas and small intestine of CF mice. Am J Physiol 275(2 Pt 1):G219-27. [PubMed: 9688648] [MGI Ref ID J:111694]
De Lisle RC; Roach E; Jansson K. 2007. Effects of laxative and N-acetylcysteine on mucus accumulation, bacterial load, transit, and inflammation in the cystic fibrosis mouse small intestine. Am J Physiol Gastrointest Liver Physiol 293(3):G577-84. [PubMed: 17615175] [MGI Ref ID J:125234]
Di A; Brown ME; Deriy LV; Li C; Szeto FL; Chen Y; Huang P; Tong J; Naren AP; Bindokas V; Palfrey HC; Nelson DJ. 2006. CFTR regulates phagosome acidification in macrophages and alters bactericidal activity. Nat Cell Biol 8(9):933-44. [PubMed: 16921366] [MGI Ref ID J:129519]
Dif F; Marty C; Baudoin C; De Vernejoul MC; Levi G. 2004. Severe osteopenia in CFTR-null mice. Bone 35(3):595-603. [PubMed: 15336594] [MGI Ref ID J:92512]
Dimagno MJ; Lee SH; Hao Y; Zhou SY; McKenna BJ; Owyang C. 2005. A proinflammatory, antiapoptotic phenotype underlies the susceptibility to acute pancreatitis in cystic fibrosis transmembrane regulator (-/-) mice. Gastroenterology 129(2):665-81. [PubMed: 16083720] [MGI Ref ID J:104646]
Durie PR; Kent G; Phillips MJ; Ackerley CA. 2004. Characteristic multiorgan pathology of cystic fibrosis in a long-living cystic fibrosis transmembrane regulator knockout murine model. Am J Pathol 164(4):1481-93. [PubMed: 15039235] [MGI Ref ID J:89164]
Eckman EA; Cotton CU; Kube DM; Davis PB. 1995. Dietary changes improve survival of CFTR S489X homozygous mutant mouse. Am J Physiol 269(5 Pt 1):L625-30. [PubMed: 7491981] [MGI Ref ID J:29940]
Egan ME; Pearson M; Weiner SA; Rajendran V; Rubin D; Glockner-Pagel J; Canny S; Du K; Lukacs GL; Caplan MJ. 2004. Curcumin, a major constituent of turmeric, corrects cystic fibrosis defects. Science 304(5670):600-2. [PubMed: 15105504] [MGI Ref ID J:90068]
Fiorotto R; Spirli C; Fabris L; Cadamuro M; Okolicsanyi L; Strazzabosco M. 2007. Ursodeoxycholic acid stimulates cholangiocyte fluid secretion in mice via CFTR-dependent ATP secretion. Gastroenterology 133(5):1603-13. [PubMed: 17983806] [MGI Ref ID J:130257]
Freedman SD; Katz MH; Parker EM; Laposata M; Urman MY; Alvarez JG. 1999. A membrane lipid imbalance plays a role in the phenotypic expression of cystic fibrosis in cftr(-/-) mice. Proc Natl Acad Sci U S A 96(24):13995-4000. [PubMed: 10570187] [MGI Ref ID J:58571]
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Manson ME; Corey DA; White NM; Kelley TJ. 2008. cAMP-mediated regulation of cholesterol accumulation in cystic fibrosis and Niemann-Pick type C cells. Am J Physiol Lung Cell Mol Physiol 295(5):L809-19. [PubMed: 18790990] [MGI Ref ID J:142605]
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McDaniel N; Pace AJ; Spiegel S; Engelhardt R; Koller BH; Seidler U; Lytle C. 2005. Role of Na-K-2Cl cotransporter-1 in gastric secretion of nonacidic fluid and pepsinogen. Am J Physiol Gastrointest Liver Physiol 289(3):G550-60. [PubMed: 16093421] [MGI Ref ID J:101250]
Norkina O; De Lisle RC. 2005. Potential genetic modifiers of the cystic fibrosis intestinal inflammatory phenotype on mouse chromosomes 1, 9, and 10. BMC Genet 6(1):29. [PubMed: 15921521] [MGI Ref ID J:101842]
Norkina O; Kaur S; Ziemer D; De Lisle RC. 2004. Inflammation of the cystic fibrosis mouse small intestine. Am J Physiol Gastrointest Liver Physiol 286(6):G1032-41. [PubMed: 14739145] [MGI Ref ID J:95681]
Ollero M; Laposata M; Zaman MM; Blanco PG; Andersson C; Zeind J; Urman Y; Kent G; Alvarez JG; Freedman SD. 2006. Evidence of increased flux to n-6 docosapentaenoic acid in phospholipids of pancreas from cftr-/- knockout mice. Metabolism 55(9):1192-200. [PubMed: 16919538] [MGI Ref ID J:115980]
Ostedgaard LS; Rogers CS; Dong Q; Randak CO; Vermeer DW; Rokhlina T; Karp PH; Welsh MJ. 2007. Processing and function of CFTR-DeltaF508 are species-dependent. Proc Natl Acad Sci U S A 104(39):15370-5. [PubMed: 17873061] [MGI Ref ID J:125319]
Pan J; Luk C; Kent G; Cutz E; Yeger H. 2006. Pulmonary neuroendocrine cells, airway innervation, and smooth muscle are altered in Cftr null mice. Am J Respir Cell Mol Biol 35(3):320-6. [PubMed: 16614351] [MGI Ref ID J:125253]
Parmley RR; Gendler SJ. 1998. Cystic fibrosis mice lacking Muc1 have reduced amounts of intestinal mucus. J Clin Invest 102(10):1798-806. [PubMed: 9819365] [MGI Ref ID J:51108]
Praetorius J; Friis UG; Ainsworth MA; Schaffalitzky de Muckadell OB; Johansen T. 2002. The cystic fibrosis transmembrane conductance regulator is not a base transporter in isolated duodenal epithelial cells. Acta Physiol Scand 174(4):327-36. [PubMed: 11942920] [MGI Ref ID J:127847]
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Saadane A; Masters S; DiDonato J; Li J; Berger M. 2007. Parthenolide inhibits IkappaB kinase, NF-kappaB activation, and inflammatory response in cystic fibrosis cells and mice. Am J Respir Cell Mol Biol 36(6):728-36. [PubMed: 17272824] [MGI Ref ID J:136609]
Stalvey MS; Muller C; Schatz DA; Wasserfall CH; Campbell-Thompson ML; Theriaque DW; Flotte TR; Atkinson MA. 2006. Cystic fibrosis transmembrane conductance regulator deficiency exacerbates islet cell dysfunction after beta-cell injury. Diabetes 55(7):1939-45. [PubMed: 16804061] [MGI Ref ID J:111876]
Steagall WK; Elmer HL; Brady KG; Kelley TJ. 2000. Cystic fibrosis transmembrane conductance regulator-dependent regulation of epithelial inducible nitric oxide synthase expression Am J Respir Cell Mol Biol 22(1):45-50. [PubMed: 10615064] [MGI Ref ID J:59774]
Teichgraber V; Ulrich M; Endlich N; Riethmuller J; Wilker B; De Oliveira-Munding CC; van Heeckeren AM; Barr ML; von Kurthy G; Schmid KW; Weller M; Tummler B; Lang F; Grassme H; Doring G; Gulbins E. 2008. Ceramide accumulation mediates inflammation, cell death and infection susceptibility in cystic fibrosis. Nat Med 14(4):382-91. [PubMed: 18376404] [MGI Ref ID J:133678]
Velsor LW; Kariya C; Kachadourian R; Day BJ. 2006. Mitochondrial oxidative stress in the lungs of cystic fibrosis transmembrane conductance regulator protein mutant mice. Am J Respir Cell Mol Biol 35(5):579-86. [PubMed: 16763223] [MGI Ref ID J:126889]
Xu Y; Clark JC; Aronow BJ; Dey CR; Liu C; Wooldridge JL; Whitsett JA. 2003. Transcriptional adaptation to cystic fibrosis transmembrane conductance regulator deficiency. J Biol Chem 278(9):7674-82. [PubMed: 12482874] [MGI Ref ID J:107360]
Xu Y; Liu C; Clark JC; Whitsett JA. 2006. Functional genomic responses to cystic fibrosis transmembrane conductance regulator (CFTR) and CFTR(delta508) in the lung. J Biol Chem 281(16):11279-91. [PubMed: 16455659] [MGI Ref ID J:112698]
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