C57BL/6JCya-Pkmem1flox/Cya
Common Name:
Pkm-flox
Product ID:
S-CKO-04296
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
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Basic Information
Strain Name
Pkm-flox
Strain ID
CKOCMP-18746-Pkm-B6J-VA
Gene Name
Product ID
S-CKO-04296
Gene Alias
Pk-2; Pk-3; Pk3; Pkm2
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
9
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Pkmem1flox/Cya mice (Catalog S-CKO-04296) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000034834
NCBI RefSeq
NM_011099
Target Region
Exon 4~6
Size of Effective Region
~2.7 kb
Detailed Document
Overview of Gene Research
Pkm, which encodes pyruvate kinase muscle isoforms, is crucial for glycolysis, the metabolic pathway converting glucose to pyruvate. Alternative splicing of Pkm pre-mRNA generates PKM1 and PKM2 isoforms, and the shift from PKM1 to PKM2 is linked to the Warburg effect, where cancer cells prefer aerobic glycolysis over oxidative phosphorylation [1,2,4].
In a genetic HCC mouse model, a surrogate mouse-specific antisense oligonucleotide (ASO) induced Pkm splice-switching from PKM2 to PKM1. This led to increased pyruvate-kinase activity, altered glucose metabolism, and inhibited tumorigenesis without observable toxicity, suggesting a potential ASO-based therapy for HCC [1]. In vascular smooth muscle cells (VSMCs), prohibitin 2 deficiency facilitated Pkm1/2 mRNA splicing from PKM1 to PKM2, enhanced glycolysis, and promoted post-injury VSMC proliferation and neointima formation. This indicates that regulating Pkm splicing can impact VSMC phenotype and vascular disease-related processes [3].
In conclusion, Pkm plays a vital role in glycolysis and metabolic regulation, and its alternative splicing is closely associated with cancer and vascular diseases. The use of mouse models, such as the genetic HCC mouse model and the carotid artery injury model in VSMCs, has provided valuable insights into the role of Pkm in these disease conditions, offering potential therapeutic directions for treating HCC and vascular diseases.
References:
1. Ma, Wai Kit, Voss, Dillon M, Scharner, Juergen, Bennett, C Frank, Krainer, Adrian R. . ASO-Based PKM Splice-Switching Therapy Inhibits Hepatocellular Carcinoma Growth. In Cancer research, 82, 900-915. doi:10.1158/0008-5472.CAN-20-0948. https://pubmed.ncbi.nlm.nih.gov/34921016/
2. Li, Yuchao, Zhang, Shuwei, Li, Yuexian, Zang, Wenli, Pan, Yaping. 2024. The Regulatory Network of hnRNPs Underlying Regulating PKM Alternative Splicing in Tumor Progression. In Biomolecules, 14, . doi:10.3390/biom14050566. https://pubmed.ncbi.nlm.nih.gov/38785973/
3. Jia, Yiting, Mao, Chenfeng, Ma, Zihan, Fu, Yi, Kong, Wei. 2022. PHB2 Maintains the Contractile Phenotype of VSMCs by Counteracting PKM2 Splicing. In Circulation research, 131, 807-824. doi:10.1161/CIRCRESAHA.122.321005. https://pubmed.ncbi.nlm.nih.gov/36200440/
4. Zahra, Kulsoom, Dey, Tulika, Mishra, Surendra Pratap, Pandey, Uma. 2020. Pyruvate Kinase M2 and Cancer: The Role of PKM2 in Promoting Tumorigenesis. In Frontiers in oncology, 10, 159. doi:10.3389/fonc.2020.00159. https://pubmed.ncbi.nlm.nih.gov/32195169/
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