C57BL/6JCya-Fbxw2em1flox/Cya
Common Name:
Fbxw2-flox
Product ID:
S-CKO-10199
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Fbxw2-flox
Strain ID
CKOCMP-30050-Fbxw2-B6J-VA
Gene Name
Product ID
S-CKO-10199
Gene Alias
2700071L08Rik; FBW2; Fwd2; MD6
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
2
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Fbxw2em1flox/Cya mice (Catalog S-CKO-10199) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000113080
NCBI RefSeq
NM_013890
Target Region
Exon 4~5
Size of Effective Region
~2.5 kb
Detailed Document
Overview of Gene Research
Fbxw2, also known as F-box and WD-repeat-containing protein 2, is an E3 ubiquitin ligase, which is the substrate-binding subunit of E3 ubiquitin ligase SCF complex (composed of FBXW2, SKP1, and cullin-1). It plays a crucial role in regulating various biological processes through ubiquitination and degradation of its substrates, thus participating in multiple pathways related to tumorigenesis, inflammation, and cell stemness [1,2,3,4,5,6,7,8].
Myeloid-specific Fbxw2 gene deficiency in murine models improves obesity-associated insulin resistance and atherosclerosis, accompanied by decreased pro-inflammatory responses and macrophage infiltration. This indicates Fbxw2's role as an inflammatory mediator in macrophages [3]. In breast cancer, Fbxw2 overexpression suppresses breast cancer stemness, tumorigenesis, and paclitaxel resistance by ubiquitinating and degrading NF-κB p65. Also, it restricts the AKT-Moesin-SKP2 oncogenic axis to inhibit breast tumor growth [1,2]. In prostate cancer, overexpression of Fbxw2 attenuates proliferation and metastasis by promoting EGFR ubiquitylation and degradation [4]. In lung cancer, Fbxw2 inhibits migration, invasion, and metastasis by promoting β-catenin ubiquitylation and degradation, and also suppresses proliferation by targeting SKP2 for degradation [5,7]. In gastric cancer, Fbxw2 suppresses cancer progression by promoting β-catenin ubiquitination [8].
In conclusion, Fbxw2 functions as a tumor suppressor in multiple cancer types, including breast, prostate, lung, and gastric cancer, mainly through promoting the ubiquitination and degradation of key oncogenic proteins. In addition, it serves as an important mediator in metabolic diseases like obesity and atherosclerosis. Gene knockout models, especially in mice, have been crucial in revealing these functions, providing insights into potential therapeutic targets for related diseases.
References:
1. Ren, Chune, Han, Xue, Lu, Chao, Sun, Yonghong, Yu, Zhenhai. 2021. Ubiquitination of NF-κB p65 by FBXW2 suppresses breast cancer stemness, tumorigenesis, and paclitaxel resistance. In Cell death and differentiation, 29, 381-392. doi:10.1038/s41418-021-00862-4. https://pubmed.ncbi.nlm.nih.gov/34465889/
2. Barik, Ganesh Kumar, Sahay, Osheen, Mukhopadhyay, Anindya, Nath, Somsubhra, Santra, Manas Kumar. 2023. FBXW2 suppresses breast tumorigenesis by targeting AKT-Moesin-SKP2 axis. In Cell death & disease, 14, 623. doi:10.1038/s41419-023-06127-x. https://pubmed.ncbi.nlm.nih.gov/37736741/
3. Wang, Cheng, Xu, Wenjing, Chao, Yuelin, Zhang, Fengxiao, Huang, Kai. 2020. E3 Ligase FBXW2 Is a New Therapeutic Target in Obesity and Atherosclerosis. In Advanced science (Weinheim, Baden-Wurttemberg, Germany), 7, 2001800. doi:10.1002/advs.202001800. https://pubmed.ncbi.nlm.nih.gov/33101872/
4. Zhou, Tao, Chen, Tingting, Lai, Bin, Fu, Weihua, Xu, Jie. 2022. FBXW2 inhibits prostate cancer proliferation and metastasis via promoting EGFR ubiquitylation and degradation. In Cellular and molecular life sciences : CMLS, 79, 268. doi:10.1007/s00018-022-04320-3. https://pubmed.ncbi.nlm.nih.gov/35499593/
5. Yang, Fei, Xu, Jie, Li, Hua, Xiong, Xiufang, Sun, Yi. 2019. FBXW2 suppresses migration and invasion of lung cancer cells via promoting β-catenin ubiquitylation and degradation. In Nature communications, 10, 1382. doi:10.1038/s41467-019-09289-5. https://pubmed.ncbi.nlm.nih.gov/30918250/
6. Yin, Yuan, Xie, Chuan-Ming, Li, Hua, Xiong, Xiufang, Sun, Yi. 2019. The FBXW2-MSX2-SOX2 axis regulates stem cell property and drug resistance of cancer cells. In Proceedings of the National Academy of Sciences of the United States of America, 116, 20528-20538. doi:10.1073/pnas.1905973116. https://pubmed.ncbi.nlm.nih.gov/31548378/
7. Yang, Fei, Sun, Yi. 2019. FBXW2 suppresses proliferation and invasion of lung cancer cells by targeting SKP2 and β-catenin. In Molecular & cellular oncology, 6, 1607458. doi:10.1080/23723556.2019.1607458. https://pubmed.ncbi.nlm.nih.gov/31211237/
8. Kuang, Yanshen, Ke, Mu, Liu, Weizheng, Xu, Fengming. 2025. FBXW2 inhibits the progression of gastric cancer via promoting β-catenin ubiquitylation. In International journal of medical sciences, 22, 1936-1943. doi:10.7150/ijms.108501. https://pubmed.ncbi.nlm.nih.gov/40225854/
Quality Control Standard
Sperm Test
Pre-cryopreservation: Measurement of sperm concentration, determination of sperm viability.
Post-cryopreservation: A vial of cryopreserved sperms is selected for in-vitro fertilization from each batch.
Environmental Standards:SPF
Available Region:Global
Source:Cyagen