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U-2 OS-CRISPR-NUP96-SNAP
Tissue
骨质
Disease
骨肉瘤

Documents

U-2 OS-CRISPR-NUP96-SNAP

Cell line · Product number 300444

The U-2 OS-CRISPR-NUP96-SNAP is a genetically modified osteosarcoma cell line derived from the parent U-2 OS human cell line. This cell line has been engi...

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01General information

Description

U-2 OS-CRISPR-NUP96-SNAP是一种转基因骨肉瘤细胞系,来源于母本U-2 OS人类细胞系。该细胞系通过 CRISPR/Cas9 介导的基因组编辑技术进行改造,在 NUP96 基因上加入了 SNAP 标记,从而实现了核孔复合体动态的可视化研究。核孔复合体(NPC)对核胞浆转运的调控至关重要,而 NUP96 是 NPC 的重要组成部分,对其结构完整性和功能起着关键作用。

在 U-2 OS-CRISPR-NUP96-SNAP 克隆 33 号中,NUP96 基因座上整合了 SNAP 标记,可以特异性共价连接荧光底物或其他化学探针,用于活细胞成像和其他生化检测。这一特性使其成为研究核细胞质转运的分子动力学、了解鼻咽癌相关病理以及筛选影响鼻咽癌功能的治疗化合物的宝贵工具。该细胞系还保留了亲本 U-2 OS 系的特点,包括高度的遗传稳定性和易于培养,因此适用于细胞生物学的高通量筛选和扩展研究。

由于 NUP96 基因修饰的特异性,U-2 OS-CRISPR-NUP96-SNAP 克隆 33 号为详细研究细胞功能和功能障碍背景下的 NPC 成分提供了一个独特的模型。研究人员可以利用 SNAP 标记系统选择性地快速标记 NUP96,从而促进生理和病理条件下 NPC 动态的实时可视化。这种特异克隆可作为基础研究和应用生物医学研究的强大平台,为细胞生物学、遗传学和肿瘤学领域做出重大贡献。

Tissue
骨质
Disease
骨肉瘤

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This human osteosarcoma cell line (U2OS-CRISPR-NUP96-SNAP, clone 33) contains a CRISPR-engineered NUP96-SNAP fusion facilitating SNAP-tag chemical labeling of nuclear pores. The modification is stably integrated. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Identifiers

Citation
U-2 OS-CRISPR-NUP96-SNAP(Cytion 目录号 300444)
NCBI TaxID
9606
Cellosaurus
CVCL_B7FL
Depositor
艾伦伯格实验室(EMBL)

04Expression and susceptibility

Protein expression
NUP96-SNAP(核孔复合体蛋白 96,SNAP-标记)

05Handling and culture

Culture medium
McCoys 5a,w:3.0 克/升葡萄糖,w:稳定谷氨酰胺,w:2.0 毫摩尔丙酮酸钠,w:2.2 克/升 NaHCO3(Cytion 文章编号 820200a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS、3.0 g/L 葡萄糖、稳定的谷氨酰胺、2.0 mM 丙酮酸钠、2.2 g/L NaHCO3、1% NEAA
Dissociation reagent
Accutase
Subculturing
去除粘附细胞上的旧培养基,用不含钙和镁的 PBS 冲洗。T25 烧瓶用 3-5 毫升 PBS,T75 烧瓶用 5-10 毫升。然后用 Accutase 完全覆盖细胞,T25 烧瓶用 1-2 毫升,T75 烧瓶用 2.5 毫升。让细胞在室温下孵育 8-10 分钟,使其分离。孵育后,用 10 毫升培养基轻轻混合细胞使其重悬,然后用 300xg 离心 3 分钟。弃去上清液,用新鲜培养基重悬细胞,并将其转移到已装有新鲜培养基的新烧瓶中。
Seeding density
1 × 10⁴ 个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Thawing and culturing
  1. Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit.

  2. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required.

  3. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains.

  4. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening.

  5. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently.

  6. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium.

  7. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth.

  8. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.

06Quality control and cryopreservation

Sterility

使用基于 PCR 的检测方法和基于发光的支原体检测方法排除支原体污染。

为确保没有细菌、真菌或酵母菌污染,每天都要对细胞培养物进行目视检查。

Freeze medium
我们使用完全生长培养基(包括 FBS)+10% DMSO 或 CM-1(Cytion 商品目录编号 800100)作为冷冻保存培养基,以获得足够的解冻后存活率,CM-1(Cytion 商品目录编号 800100)含有优化的渗透保护剂和代谢稳定剂,可提高恢复能力并减少冷冻引起的应激。
Storage conditions

如需长期保存,可将样品瓶放入气相液氮中,温度约为 -150 至 -196 ℃。在-80 °C下保存只能作为转入液氮前的短暂过渡。

Shipping conditions

冷冻保存的细胞系用干冰装运,并用经过验证的隔热包装和足够的制冷剂在整个运输过程中保持约 -78 °C 的温度。收到货后,应立即检查容器,并立即将小瓶转移到适当的储藏室。

07Donor

Donor age
15 年
Ethnicity
高加索人