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C57BL/6JCya-Lamb1em1/Cya
Common Name:
Lamb1-KO
Product ID:
S-KO-18298
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
Price:
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Basic Information
Strain Name
Lamb1-KO
Strain ID
KOCMP-16777-Lamb1-B6J-VB
Gene Name
Lamb1
Product ID
S-KO-18298
Gene Alias
D130003D08Rik; Lamb-1; Lamb1-1
Background
C57BL/6JCya
NCBI ID
16777
Modification
Conventional knockout
Chromosome
12
Phenotype
MGI:96743
Document
Click here to download >>
Application
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More
Rare Disease Data Center >>
Note
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Lamb1em1/Cya mice (Catalog S-KO-18298) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000002979
NCBI RefSeq
NM_008482
Target Region
Exon 5~6
Size of Effective Region
~0.3 kb
Detailed Document
Click here to download >>
Overview of Gene Research
LAMB1, encoding laminin subunit beta 1, is a key component of the extracellular matrix (ECM). Laminin, consisting of one α-, one β-, and one γ-chain, is crucial for bridging the internal and external environment of cells and transmitting signals. LAMB1 is involved in attachment, migration, and organization during development, and is associated with pathways like PI3K-Akt, focal adhesion, and ECM-receptor interaction [2,4].

In multiple cancers, LAMB1 shows significance. In hepatocellular carcinoma (HCC), DDX24 binds LAMB1 mRNA and increases its stability, promoting HCC progression, suggesting the RFX8/DDX24/LAMB1 axis as a potential therapeutic target [1]. In gastric cancer, LAMB1 is upregulated, related to T stage and poor prognosis, and may be associated with tumor microenvironmental changes [2]. It also promotes gastric cancer cell growth and motility via the ERK/c-Jun axis [4]. In nasopharyngeal carcinoma, high LAMB1 expression is associated with an immune-suppressive tumor microenvironment and enhanced cell proliferation, migration, and invasion [9]. In addition, in prostate cancer, sEV protein LAMB1 is highly expressed in metastatic patients' plasma, showing promise for diagnosis and risk stratification [5].

In mice, knockdown of LAMB1 in the anterior cingulate cortex exacerbates pain sensitivity and induces anxiety and depression, revealing its role in modulating pain plasticity [3]. In humans, end-truncated LAMB1 is associated with a hippocampal memory defect and a leukoencephalopathy [6,10], and a novel in-frame deletion in LAMB1 is reported in a pediatric patient with brain anomalies and a cerebrovascular event [8]. Also, Lamb1 promotes fracture repair and healing by up-regulating VEGFA expression via the activation of the Wnt signaling pathway to drive endothelial angiogenesis [7].

In conclusion, LAMB1 is essential for various biological processes related to cell-matrix interactions and signal transduction. Its dysregulation is implicated in multiple diseases, especially cancers, pain-related psychiatric disorders, and cerebrovascular and neurodegenerative-like conditions. Studies on LAMB1, including those using genetic models, contribute to understanding disease mechanisms and identifying potential therapeutic targets.

References:
1. Liu, Tianze, Gan, Hairun, He, Simeng, He, Huanhuan, Shan, Hong. . RNA Helicase DDX24 Stabilizes LAMB1 to Promote Hepatocellular Carcinoma Progression. In Cancer research, 82, 3074-3087. doi:10.1158/0008-5472.CAN-21-3748. https://pubmed.ncbi.nlm.nih.gov/35763670/
2. Ran, Tao, Chen, ZhiJi, Zhao, LiWen, Hong, SiYa, Yang, ZhaoXia. . LAMB1 Is Related to the T Stage and Indicates Poor Prognosis in Gastric Cancer. In Technology in cancer research & treatment, 20, 15330338211004944. doi:10.1177/15330338211004944. https://pubmed.ncbi.nlm.nih.gov/33784890/
3. Li, Zhen-Zhen, Han, Wen-Juan, Sun, Zhi-Chuan, Wu, Sheng-Xi, Luo, Ceng. . Extracellular matrix protein laminin β1 regulates pain sensitivity and anxiodepression-like behaviors in mice. In The Journal of clinical investigation, 131, . doi:10.1172/JCI146323. https://pubmed.ncbi.nlm.nih.gov/34156983/
4. Lee, Hana, Kim, Won-Jin, Kang, Hyeon-Gu, Chun, Kyung-Hee, Kim, Seok-Jun. 2021. Upregulation of LAMB1 via ERK/c-Jun Axis Promotes Gastric Cancer Growth and Motility. In International journal of molecular sciences, 22, . doi:10.3390/ijms22020626. https://pubmed.ncbi.nlm.nih.gov/33435161/
5. Pang, Bairen, Wang, Qi, Chen, Haotian, Jiang, Junhui, Li, Yong. 2024. Proteomic Identification of Small Extracellular Vesicle Proteins LAMB1 and Histone H4 for Prostate Cancer Diagnosis and Risk Stratification. In Advanced science (Weinheim, Baden-Wurttemberg, Germany), 11, e2402509. doi:10.1002/advs.202402509. https://pubmed.ncbi.nlm.nih.gov/38590132/
6. Aloui, Chaker, Hervé, Dominique, Marenne, Gaelle, Génin, Emmanuelle, Tournier-Lasserve, Elisabeth. 2021. End-Truncated LAMB1 Causes a Hippocampal Memory Defect and a Leukoencephalopathy. In Annals of neurology, 90, 962-975. doi:10.1002/ana.26242. https://pubmed.ncbi.nlm.nih.gov/34606115/
7. Yang, Yajun, Li, Hangyu, Ma, Zhirong, Li, Zhiran, Gu, Jinxin. 2025. Lamb1-mediated Wnt/β-catenin signaling pathway drives endothelial angiogenesis for fracture healing. In Gene, 959, 149481. doi:10.1016/j.gene.2025.149481. https://pubmed.ncbi.nlm.nih.gov/40221061/
8. Toutouna, Louiza, Beck-Woedl, Stefanie, Feige, Ursula, Bader, Ingrid, Tzschach, Andreas. 2023. Novel homozygous LAMB1 in-frame deletion in a pediatric patient with brain anomalies and cerebrovascular event. In American journal of medical genetics. Part A, 191, 2656-2663. doi:10.1002/ajmg.a.63349. https://pubmed.ncbi.nlm.nih.gov/37466007/
9. Feng, Enzi, Yang, Xinyu, Yang, Jie, Qu, Qianqian, Li, Xiaojiang. 2025. LAMB1 promotes proliferation and metastasis in nasopharyngeal carcinoma and shapes the immune-suppressive tumor microenvironment. In Brazilian journal of otorhinolaryngology, 91, 101551. doi:10.1016/j.bjorl.2024.101551. https://pubmed.ncbi.nlm.nih.gov/39874810/
10. Morel, Hélène, Bailly, Laurent, Urbanczyk, Cédric, Tournier-Lasserve, Elisabeth, Mathey, Guillaume. 2023. Extension of the Clinicoradiologic Spectrum of Newly Described End-Truncating LAMB1 Variations. In Neurology. Genetics, 9, e200069. doi:10.1212/NXG.0000000000200069. https://pubmed.ncbi.nlm.nih.gov/37063705/
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
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