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C57BL/6JCya-Hikeshiem1flox/Cya
Common Name:
Hikeshi-flox
Product ID:
S-CKO-13812
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
Price:
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Basic Information
Strain Name
Hikeshi-flox
Strain ID
CKOCMP-67669-Hikeshi-B6J-VA
Gene Name
Hikeshi
Product ID
S-CKO-13812
Gene Alias
0610007P06Rik; 1110002N09Rik; l(7)6Rn; l7Rn6
Background
C57BL/6JCya
NCBI ID
67669
Modification
Conditional knockout
Chromosome
7
Phenotype
MGI:96738
Document
Click here to download >>
Application
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Rare Disease Data Center >>
Note
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Hikeshiem1flox/Cya mice (Catalog S-CKO-13812) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000153470
NCBI RefSeq
NM_026304
Target Region
Exon 3
Size of Effective Region
~0.7 kb
Detailed Document
Click here to download >>
Overview of Gene Research
Hikeshi, also referred to as C11orf73, is a nonconventional nuclear import carrier of heat shock protein 70 family (HSP70s) [4]. It plays a crucial role in nucleocytoplasmic transport, which is essential for regulating cell physiology in eukaryotic cells [2]. Hikeshi-mediated nuclear translocation of HSP70s is involved in pathways related to cell differentiation, proteostasis, and the heat-shock response, and is of great biological importance [1,2,3]. Genetic models, such as gene knockout models, are valuable for studying Hikeshi's functions.

In inherited leukodystrophy patients, deficiency of Hikeshi leads to murine oligodendrocyte maturation arrest, demonstrating its essentiality for central nervous system (CNS) myelination [1]. Hikeshi-knockout cells show an up-regulation of genes regulated by HSF1 under non-stressed conditions and an impaired heat-shock response, suggesting that proper nucleocytoplasmic distribution of HSP70, mediated by Hikeshi, is required for nuclear proteostasis and adaptive response to heat shock [3]. In human oral squamous cell carcinoma HSC-3 cells and 22Rv1 cells (human castration-resistant prostate cancer cell line), Hikeshi silencing enhances the sensitivity to mild hyperthermia, as it inhibits the translocation of HSP70 from the cytoplasm to the nucleus under heat shock [4,5].

In conclusion, Hikeshi is vital for processes like CNS myelination, nuclear proteostasis, and the heat-shock response. Studies using Hikeshi KO models have provided insights into its role in diseases such as inherited leukodystrophy and in enhancing the effectiveness of hyperthermia in cancer treatment, highlighting its potential as a therapeutic target.

References:
1. Li, Li, Li, Daopeng, Sun, Di, Liu, Zhixiong, Zhang, Liang. 2023. Nuclear import carrier Hikeshi cooperates with HSP70 to promote murine oligodendrocyte differentiation and CNS myelination. In Developmental cell, 58, 2275-2291.e6. doi:10.1016/j.devcel.2023.09.002. https://pubmed.ncbi.nlm.nih.gov/37865085/
2. Imamoto, Naoko. 2024. Functional analysis of Hikeshi reveals physiological significance of nuclear Hsp70. In Current opinion in cell biology, 91, 102426. doi:10.1016/j.ceb.2024.102426. https://pubmed.ncbi.nlm.nih.gov/39317134/
3. Kose, Shingo, Imai, Kenichiro, Watanabe, Ai, Suzuki, Yutaka, Imamoto, Naoko. 2022. Lack of Hikeshi activates HSF1 activity under normal conditions and disturbs the heat-shock response. In Life science alliance, 5, . doi:10.26508/lsa.202101241. https://pubmed.ncbi.nlm.nih.gov/35580988/
4. Tabuchi, Yoshiaki, Maekawa, Keita, Torigoe, Misako, Yunoki, Tatsuya, Hayashi, Atsushi. 2020. HIKESHI silencing can enhance mild hyperthermia sensitivity in human oral squamous cell carcinoma HSC‑3 cells. In International journal of molecular medicine, 46, 58-66. doi:10.3892/ijmm.2020.4591. https://pubmed.ncbi.nlm.nih.gov/32377716/
5. Nagai, Takashi, Kawai, Noriyasu, Gonda, Masakazu, Imae, Toyoko, Yasui, Takahiro. 2023. Role of HIKESHI on Hyperthermia for Castration-Resistant Prostate Cancer and Application of a Novel Magnetic Nanoparticle with Carbon Nanohorn for Magnetic Hyperthermia. In Pharmaceutics, 15, . doi:10.3390/pharmaceutics15020626. https://pubmed.ncbi.nlm.nih.gov/36839948/
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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