Strain Information | |
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Image | |
BRC No. | RBRC00984 |
Type | Targeted Mutation![]() |
Species | Mus musculus |
Strain name | ICR;129P2-Nfe2l2<tm1Mym>/MymRbrc |
Former Common name | Nrf2 knock out mouse (ICR background) |
H-2 Haplotype | |
ES Cell line | E14 [129P2/OlaHsd] |
Background strain | Jcl:ICR |
Appearance | |
Strain development | Developed by Masayuki Yamamoto, Institute of Basic Medical Sciences and Center for Tsukuba Advanced Research Alliance, University of Tsukuba in 1996. The targeting vector containing lacZ-neo cassette was transferred into E14 ES cells to replace the 1.2 kb segment containing the rest of the exon 5 coding sequence of the Nrf2 gene. |
Strain description | Nrf2 (Nfe2l2) Knockout mice. This strain is a useful model for the in vivo analysis of chemical carcinogenesis and resistance to anti-cancer drugs. A phenolic antioxidant significantly induced the expression of phase II enzymes such as glutathione S-transferase and NAD(P)H: quinone oxidoreductase in normal mice. However, in the homozygous Nrf2 deficient mice the induction of the phase II enzymes by a phenolic antioxidant was largely eliminated in the liver and intestine. Since Nrf2 is constantly degraded by proteasome under normal condition, it is hardly to detect Nrf2 protein in the absence of stimuli. Electrophilic chemicals, such as DEM (diethyl maleate) and tBHQ (tert-buthyl hydroquinone), are generally used to stabilize Nrf2. Or proteasomal inhibitors, such as MG132, are also effective increasing the protein amount of Nrf2. C57BL/6 background (RBRC01390), BALB/c background (RBRC02190), A/J background (RBRC02414), ICR mixed background (RBRC00984). Homozygous mutant mice are viable and fertile, but show lower reproductive performance. |
Colony maintenance | Homozygote x Heterozygote [or Crossing to Jcl:ICR] |
References | An Nrf2/small Maf heterodimer mediates the induction of phase II detoxifying enzyme genes through antioxidant response elements. Itoh K, Chiba T, Takahashi S, Ishii T, Igarashi K, Katoh Y, Oyake T, Hayashi N, Satoh K, Hatayama I, Yamamoto M, Nabeshima Y Biochem. Biophys. Res. Commun., 236, 313-322 (1997). 9240432 |
Health Report | |
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Examination Date / Room / Rack |
Gene | |||||||
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Gene Symbol | Gene Name | Chr. | Allele Symbol | Allele Name | Common Names | Promoter | Diseases Related to This Gene |
Nfe2l2 MGI:108420 | nuclear factor, erythroid derived 2, like 2 | 2 | Nfe2l2<tm1Mym> MGI:2385925 | targeted mutation 1, Masayuki Yamamoto | |||
lacZ | beta-galactosidase (E. coli) | 2 | |||||
neo | neomycin resistance gene (E. coli) | 2 | herpes simplex virus thymidine kinase promoter (HSV tk promoter) | ||||
nls | SV40 large T antigen nuclear localization signal (NLS) | 2 | nls |
Phenotype | |
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Annotation by Mammalian phenotyhpe ontology | more 51 phenotypes |
Detailed phenotype data |
Ordering Information | |
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Donor DNA | Simian virus 40 Large T antigen nuclear localization signal (NLS), E. coli lacZ, herpes simplex virus thymidine kinase promoter (HSV tk promoter), E. coli neo, mouse Nrf2 genomic DNA |
Research application | |
Specific Term and Conditions | The RECIPIENT of BIOLOGICAL RESOURCE shall obtain a prior written consent on use of it from the DEPOSITOR. In publishing the research results obtained by use of the BIOLOGICAL RESOURCE, a citation of the following literature(s) designated by the DEPOSITOR is requested. Biochem. Biophys. Res. Commun., 236, 313-322 (1997). In publishing the research results to be obtained by use of the BIOLOGICAL RESOURCE, an acknowledgment to the DEPOSITOR is requested. The depositor should be a co-author in the articles when the users publish their data using these mice for 2 year after provided. Any patent rights and other intellectual properties are retained by the depositor. Users should contact the depositor in the case of application for any patents with the results from these mice. |
Depositor | Masayuki Yamamoto (University of Tsukuba) |
Strain Status | ![]() ![]() |
Strain Availability | Recovered litters from cryopreserved embryos (2 to 4 months) Cryopreserved sperm (within 1 month) Cryopreserved embryos (within 1 month) |
Additional Info. | Necessary documents for ordering:
Genotyping protocol -PCR- Mouse of the Month Oct 2005 Mouse of the Month Apr 2012 |
BRC mice in Publications |
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Ramkissoon A, Wells PG. Methamphetamine oxidative stress, neurotoxicity, and functional deficits are modulated by nuclear factor-E2-related factor 2. Free Radic Biol Med 89 358-68(2015) 26427884 |
Ramkissoon A, Wells PG. Developmental role of nuclear factor E2-related factor 2 in mitigating methamphetamine fetal toxicity and postnatal neurodevelopmental deficits. Free Radic Biol Med 65 620-631(2013) 23932974 |
Clarke JD, Hsu A, Williams DE, Dashwood RH, Stevens JF, Yamamoto M, Ho E. Metabolism and tissue distribution of sulforaphane in Nrf2 knockout and wild-type mice. Pharm Res 28(12) 3171-9(2011) 21681606 |
Gebel S, Diehl S, Pype J, Friedrichs B, Weiler H, Schüller J, Xu H, Taguchi K, Yamamoto M, Müller T. The transcriptome of Nrf2-/- mice provides evidence for impaired cell cycle progression in the development of cigarette smoke-induced emphysematous changes. Toxicol Sci 115(1) 238-52(2010) 20133372 |
Ho E, Clarke JD, Dashwood RH. Dietary sulforaphane, a histone deacetylase inhibitor for cancer prevention. J Nutr 139(12) 2393-6(2009) 19812222 |