C57BL/6JCya-Txnrd1em1flox/Cya
Common Name:
Txnrd1-flox
Product ID:
S-CKO-11354
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
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Basic Information
Strain Name
Txnrd1-flox
Strain ID
CKOCMP-50493-Txnrd1-B6J-VA
Gene Name
Product ID
S-CKO-11354
Gene Alias
TR; TR1; TrxR1
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
10
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Txnrd1em1flox/Cya mice (Catalog S-CKO-11354) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000219368
NCBI RefSeq
NM_001042523
Target Region
Exon 4~5
Size of Effective Region
~2.5 kb
Detailed Document
Overview of Gene Research
Txnrd1, or thioredoxin reductase 1, is a key selenoprotein in the thioredoxin (TXN) system, an NADPH + H+/FAD redox-triggered effector. It is crucial for maintaining cellular redox homeostasis, which is essential for bioenergetics, detoxifying drug networks, and cell survival in oxidative stress-related conditions [3]. It is also involved in various cellular processes such as cell proliferation, apoptosis, and the innate immune response [2,5].
In osteoclast precursors, inhibition of Txnrd1 leads to increased cystine transport, disulfide stress, and disulfidptosis, reducing osteoclast numbers and alleviating bone loss in an ovariectomized mouse model, suggesting its role in bone metabolic diseases [1]. In senescent cells, Txnrd1 drives the senescence-associated secretory phenotype (SASP) and inflammaging through the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) innate immune response pathway, independently of its enzymatic activity, and its inhibitor can downregulate markers of inflammaging in aged mice [2]. In hepatocellular carcinoma (HCC), SLC27A5 deficiency activates the NRF2/Txnrd1 pathway, and blockade of this pathway sensitizes SLC27A5-deficient hepatoma cells to sorafenib treatment [4]. In endothelial cells under oscillatory shear stress, knockdown of Txnrd1 inhibits cell proliferation by activating the endothelial nitric oxide synthase/apoptosis pathway, indicating its involvement in atherosclerosis [5]. In osteoarthritis, inhibition of Txnrd1 in chondrocytes can prevent cartilage extracellular matrix degeneration by activating the Nrf2 pathway [6].
In conclusion, Txnrd1 is essential for maintaining cellular redox balance and is involved in multiple biological processes. Studies using gene-targeted mouse models (such as in the context of osteoporosis, aging-related inflammation, HCC, atherosclerosis, and osteoarthritis) have revealed its significance in these disease conditions, providing potential therapeutic targets for related diseases.
References:
1. Zhong, Zeyuan, Zhang, Chongjing, Ni, Shuo, Yi, Chengqing, Yu, Baoqing. 2023. NFATc1-mediated expression of SLC7A11 drives sensitivity to TXNRD1 inhibitors in osteoclast precursors. In Redox biology, 63, 102711. doi:10.1016/j.redox.2023.102711. https://pubmed.ncbi.nlm.nih.gov/37148740/
2. Hao, Xue, Zhao, Bo, Towers, Martina, Zaret, Kenneth S, Zhang, Rugang. 2024. TXNRD1 drives the innate immune response in senescent cells with implications for age-associated inflammation. In Nature aging, 4, 185-197. doi:10.1038/s43587-023-00564-1. https://pubmed.ncbi.nlm.nih.gov/38267705/
3. Calandria, Jorgelina M, Bhattacharjee, Surjyadipta, Kala-Bhattacharjee, Sayantani, Treiber, Tobias, Bazan, Nicolas G. 2023. Elovanoid-N34 modulates TXNRD1 key in protection against oxidative stress-related diseases. In Cell death & disease, 14, 819. doi:10.1038/s41419-023-06334-6. https://pubmed.ncbi.nlm.nih.gov/38086796/
4. Gao, Qingzhu, Zhang, Guiji, Zheng, Yaqiu, Wang, Kai, Tang, Ni. 2019. SLC27A5 deficiency activates NRF2/TXNRD1 pathway by increased lipid peroxidation in HCC. In Cell death and differentiation, 27, 1086-1104. doi:10.1038/s41418-019-0399-1. https://pubmed.ncbi.nlm.nih.gov/31367013/
5. Pu, Luya, Meng, Qingyu, Li, Shuai, Wang, Yaru, Liu, Bin. 2023. TXNRD1 knockdown inhibits the proliferation of endothelial cells subjected to oscillatory shear stress via activation of the endothelial nitric oxide synthase/apoptosis pathway. In Biochimica et biophysica acta. Molecular cell research, 1870, 119436. doi:10.1016/j.bbamcr.2023.119436. https://pubmed.ncbi.nlm.nih.gov/36754152/
6. Liang, Jianhui, Wang, Song, Hu, Jiawei, Mo, Fengbo, Dai, Min. 2022. Targeted inhibition of TXNRD1 prevents cartilage extracellular matrix degeneration by activating Nrf2 pathway in osteoarthritis. In Biochemical and biophysical research communications, 635, 267-276. doi:10.1016/j.bbrc.2022.10.059. https://pubmed.ncbi.nlm.nih.gov/36308906/
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