C57BL/6JCya-Hmga1em1flox/Cya
Common Name:
Hmga1-flox
Product ID:
S-CKO-02909
Background:
C57BL/6JCya
Product Type
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Genotype
Sex
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Basic Information
Strain Name
Hmga1-flox
Strain ID
CKOCMP-15361-Hmga1-B6J-VA
Gene Name
Product ID
S-CKO-02909
Gene Alias
Hmga1a; Hmga1b; Hmgi; Hmgiy; Hmgy
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
17
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Hmga1em1flox/Cya mice (Catalog S-CKO-02909) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000231866
NCBI RefSeq
NM_001166546
Target Region
Exon 2~4
Size of Effective Region
~2.5 kb
Detailed Document
Overview of Gene Research
HMGA1, or High Mobility Group A1, is a nonhistone chromatin structural protein with no transcriptional activity. It mainly regulates genes by modifying DNA structure, playing a role in multiple pathways such as Wnt/β-catenin, PI3K/Akt, Hippo and MEK/ERK. HMGA1 is rare in adult cells but increases in highly proliferative cells like embryos. It is involved in numerous biological processes including embryonic development, cancer, and cellular senescence [3,5,7]. Genetic models, especially knockout (KO) and conditional knockout (CKO) mouse models, are valuable for studying HMGA1's functions.
In sepsis-induced cardiomyopathy (SIC), HMGA1 overexpression in cardiomyocytes aggravated cardiac dysfunction, inflammation, and apoptosis, while knockdown in H9c2 cardiomyocytes attenuated inflammation but aggravated apoptosis [1]. In pancreatic ductal adenocarcinomas (PDAC), HMGA1 deficiency disrupted oncogenic properties in vitro and impaired tumor inception and progression in KPC mice, revealing its role in driving pancreatic carcinogenesis and stroma formation [2]. In esophageal squamous cell carcinoma (ESCC), inhibition of HMGA1 enhanced sensitivity to ferroptosis and restored sensitivity to cisplatin in syngeneic allograft tumor models and genetically engineered mice, highlighting its role in chemoresistance [4]. In colorectal cancer, conditional knockout (Hmga1△IEC) and knock-in (Hmga1IEC-OE/+) mouse models demonstrated that HMGA1 promotes CRC progression by driving lipid synthesis [6]. In ESCC, conditional knockout of HMGA1 in mice reduced 4-nitroquinoline-1-oxide (4NQO)-induced esophageal tumorigenesis, indicating its role in promoting ESCC development by upregulating the pentose phosphate pathway [8].
In conclusion, HMGA1 is a crucial regulator in multiple biological processes and disease conditions. KO and CKO mouse models have been instrumental in revealing its role in various diseases, including SIC, PDAC, ESCC, and colorectal cancer. These models help us understand how HMGA1 contributes to disease development, offering potential therapeutic targets for these diseases.
References:
1. Cai, Zhu-Lan, Shen, Bo, Yuan, Yuan, Wu, Qing-Qing, Tang, Qi-Zhu. 2020. The effect of HMGA1 in LPS-induced Myocardial Inflammation. In International journal of biological sciences, 16, 1798-1810. doi:10.7150/ijbs.39947. https://pubmed.ncbi.nlm.nih.gov/32398950/
2. Chia, Lionel, Wang, Bowen, Kim, Jung-Hyun, Wood, Laura, Resar, Linda. 2023. HMGA1 induces FGF19 to drive pancreatic carcinogenesis and stroma formation. In The Journal of clinical investigation, 133, . doi:10.1172/JCI151601. https://pubmed.ncbi.nlm.nih.gov/36919699/
3. Wang, Yuhong, Hu, Lin, Zheng, Yushuang, Guo, Lingchuan. 2019. HMGA1 in cancer: Cancer classification by location. In Journal of cellular and molecular medicine, 23, 2293-2302. doi:10.1111/jcmm.14082. https://pubmed.ncbi.nlm.nih.gov/30614613/
4. Yang, Jing-Yu, Lei, Xin-Yuan, He, Kai-Yue, Jian, Yong-Ping, Xu, Zhi-Xiang. 2024. HMGA1 drives chemoresistance in esophageal squamous cell carcinoma by suppressing ferroptosis. In Cell death & disease, 15, 158. doi:10.1038/s41419-024-06467-2. https://pubmed.ncbi.nlm.nih.gov/38383528/
5. Wang, Lu, Zhang, Ji, Xia, Min, Zu, Xuyu, Zhong, Jing. 2022. High Mobility Group A1 (HMGA1): Structure, Biological Function, and Therapeutic Potential. In International journal of biological sciences, 18, 4414-4431. doi:10.7150/ijbs.72952. https://pubmed.ncbi.nlm.nih.gov/35864955/
6. Zhao, Yuan, Liu, Meng-Jie, Zhang, Lei, Jian, Yong-Ping, Xu, Zhi-Xiang. 2024. High mobility group A1 (HMGA1) promotes the tumorigenesis of colorectal cancer by increasing lipid synthesis. In Nature communications, 15, 9909. doi:10.1038/s41467-024-54400-0. https://pubmed.ncbi.nlm.nih.gov/39548107/
7. Olan, Ioana, Ando-Kuri, Masami, Parry, Aled J, Narita, Masako, Narita, Masashi. 2024. HMGA1 orchestrates chromatin compartmentalization and sequesters genes into 3D networks coordinating senescence heterogeneity. In Nature communications, 15, 6891. doi:10.1038/s41467-024-51153-8. https://pubmed.ncbi.nlm.nih.gov/39134516/
8. Liu, Meng-Jie, Zhao, Yuan, Li, Qiu-Tong, Jian, Yong-Ping, Xu, Zhi-Xiang. 2024. HMGA1 promotes the progression of esophageal squamous cell carcinoma by elevating TKT-mediated upregulation of pentose phosphate pathway. In Cell death & disease, 15, 541. doi:10.1038/s41419-024-06933-x. https://pubmed.ncbi.nlm.nih.gov/39080260/
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