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NRK-EGFP-H2B
Tissue
肾脏
Synonyms
NRK EGFP-H2B

Documents

NRK-EGFP-H2B

Cell line · Product number 500724

The NRK-EGFP-H2B cell line is a genetically modified variant of normal rat kidney (NRK) cells that stably express the enhanced green fluorescent protein (...

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1

01General information

Description

NRK-EGFP-H2B细胞系是正常大鼠肾脏(NRK)细胞的基因修饰变体,能稳定表达与组蛋白H2B融合的增强型绿色荧光蛋白(EGFP)。这种改造可实现染色质和核动态的实时可视化,使该细胞系成为研究细胞周期进展、有丝分裂和染色质组织的宝贵工具。EGFP-H2B 的稳定表达提供了明亮而稳定的荧光信号,有利于高分辨率活细胞成像,使研究人员能够非常精确地监测核事件。

NRK 细胞来源于成年大鼠的肾脏组织,因其生长稳健、生理行为有据可查而被广泛应用于细胞生物学。在这些细胞中引入 EGFP-H2B 融合蛋白并不会明显改变其生长或形态,因此实验条件可靠且可重复。鉴于肾脏在过滤血液和排泄废物方面的作用,这种细胞系在研究肾细胞生物学、细胞对压力的反应和致癌机制方面特别有用。此外,NRK-EGFP-H2B 细胞的荧光功能可用于药物筛选应用,实时观察药物对细胞增殖和核形态的影响。

Tissue
肾脏
Synonyms
  • NRK EGFP-H2B

02Classification

Organism
Rat
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
纺锤形纤维母细胞

04Identifiers

Citation
NRK-EGFP-H2B(Cytion 目录号 500724)
NCBI TaxID
10116
Cellosaurus
CVCL_AV92
Depositor
艾伦伯格实验室(EMBL)

05Expression and susceptibility

Receptors expressed
表皮生长因子(EGF),增殖刺激活性(MSA)
Protein expression
EGFP-H2B:位置/基因:1...589 / Pcmv, 613...1329 / EGFP, 1387...1764 / H2B, 3001...3795 / KanR/NeoR
Products
表皮生长因子(EGF),增殖刺激活性(MSA),CMV 促进因子组蛋白 H2B,新霉素,磷转移酶

06Handling and culture

Culture medium
DMEM,w:4.5 克/升葡萄糖,w:4 毫摩尔 L-谷氨酰胺,w:3.7 克/升 NaHCO3,w:1.0 毫摩尔丙酮酸钠(Cytion 编号 820300a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS、0.5 mg/mL G418
Dissociation reagent
Accutase
Subculturing
丢弃旧培养基,用 PBS 冲洗细胞。加入新配制的 0.025%胰酶/0.02%乙二胺四乙酸溶液,加热至 37 摄氏度,等待细胞分离,通常需要 5 分钟左右。加入新鲜培养基中和胰蛋白酶,然后将细胞混合物转移到离心管中并离心。离心后,除去上清液,用新鲜培养基重悬细胞团,然后将悬浮液转移到新的烧瓶中。将 G418 加入培养基中,使其最终浓度达到 0.5 mg/ml
Seeding density
2至4×10⁴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.

07Quality 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。

08Donor

Breed / subspecies
奥斯本-门德尔