C57BL/6JCya-Klrc1em1/Cya
Common Name:
Klrc1-KO
Product ID:
S-KO-17633
Background:
C57BL/6JCya
Product Type
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Genotype
Sex
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Basic Information
Strain Name
Klrc1-KO
Strain ID
KOCMP-16641-Klrc1-B6J-VC
Gene Name
Product ID
S-KO-17633
Gene Alias
CD159a; NKG2A; NKG2B
Background
C57BL/6JCya
NCBI ID
Modification
Conventional knockout
Chromosome
6
Phenotype
Document
Application
--
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Klrc1em1/Cya mice (Catalog S-KO-17633) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000032270
NCBI RefSeq
NM_001136068
Target Region
Exon 2~4
Size of Effective Region
~1.2 kb
Detailed Document
Overview of Gene Research
Klrc1, which encodes the NK cell inhibitory receptor NKG2A, is a key gene in the immune system. NKG2A, a potent NK cell immune checkpoint, specifically binds to HLA-E, a non-classical HLA class I molecule. This interaction transmits inhibitory signals that strongly impair NK cell function, thus being involved in the immunosuppressive tumor microenvironment (TME) and influencing immune-related biological processes [1].
In cancer research, KLRC1 knockout has shown promising results. In vitro, KLRC1 knockout (KO) NK cells exhibit significantly higher cytotoxicity against HLA-E+ solid tumor cell lines compared to wild-type (WT) NK cells [1]. In vivo, the adoptive transfer of human KLRC1 KO NK cells significantly delays tumor progression and increases survival in a xenogeneic mouse model of HLA-E+ metastatic breast cancer [1]. Also, in acute myeloid leukemia (AML), CD33-specific CAR-NK cells combined with Nuclease technology-based KLRC1 gene disruption demonstrate potent antileukemic killing activity in vitro and in vivo [2]. In addition, in keloids, the NKG2A/CD94 complex encoded by Klrc1 is specifically upregulated, which might contribute to the reduction of cytotoxic CD8+ T cells within the scar tissue boundary [3].
In conclusion, Klrc1 plays a crucial role in immune regulation, especially in the context of tumor-immune interactions. Studies using Klrc1 KO models have revealed its importance in tumor immunity, suggesting that targeting Klrc1 could be a potential strategy for improving NK cell-based cancer immunotherapies.
References:
1. Mac Donald, Alice, Guipouy, Delphine, Lemieux, William, Béland, Kathie, Haddad, Elie. 2023. KLRC1 knockout overcomes HLA-E-mediated inhibition and improves NK cell antitumor activity against solid tumors. In Frontiers in immunology, 14, 1231916. doi:10.3389/fimmu.2023.1231916. https://pubmed.ncbi.nlm.nih.gov/37675109/
2. Bexte, Tobias, Albinger, Nawid, Al Ajami, Ahmad, Imkeller, Katharina, Ullrich, Evelyn. 2024. Nuclease technology editing of NKG2A improves the efficacy of primary CD33-directed chimeric antigen receptor natural killer cells. In Nature communications, 15, 8439. doi:10.1038/s41467-024-52388-1. https://pubmed.ncbi.nlm.nih.gov/39349459/
3. Xu, Heng, Zhu, Zhu, Hu, Jian, Li, Bin, Zhang, Yixin. 2022. Downregulated cytotoxic CD8+ T-cell identifies with the NKG2A-soluble HLA-E axis as a predictive biomarker and potential therapeutic target in keloids. In Cellular & molecular immunology, 19, 527-539. doi:10.1038/s41423-021-00834-1. https://pubmed.ncbi.nlm.nih.gov/35039632/
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