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CHO-NECTIN4
Tissue
卵巢
Disease
非肿瘤性中国仓鼠卵巢细胞;经基因工程改造,可在细胞表面表达NECTIN4(PVRL4)

Documents

CHO-NECTIN4

Cell line · Product number 305984

Disclaimer: The prices displayed for cell lines are exclusively for academic/not-for-profit customers. For commercial entities the pri...

US$1,900.00excl. tax and shipping
Made to order
1

01General information

Description

免责声明:所显示的细胞系价格仅适用于学术/非营利客户。对于商业机构,价格约为 6,250 欧元。如果您代表商业机构,或不确定自己属于哪一类,请联系我们。


CHO-NECTIN4细胞是一种稳定的重组中国仓鼠卵巢(CHO)细胞系,经工程改造可表达人Nectin-4(也称为PVRL4或脊髓灰质炎病毒受体相关蛋白4),这是一种属于Nectin家族细胞粘附分子的I型跨膜蛋白。 Nectin-4 是一种公认的肿瘤相关抗原,在多种实体瘤中均呈过表达,包括尿路上皮膀胱癌、乳腺癌、非小细胞肺癌和胰腺癌,因此已成为抗体药物偶联物(ADC)及其他靶向免疫疗法的临床验证靶点。 靶向 Nectin-4 的 ADC 药物恩福妥单抗维多汀(enfortumab vedotin)已获批用于治疗尿路上皮癌,这凸显了该抗原在治疗中的重要性。

CHO-NECTIN4细胞广泛用于Nectin-4靶向抗体、ADC、双特异性抗体及CAR-T细胞疗法的开发与表征。 该稳定的重组表达系统支持定量结合实验、ADCC/CDC细胞毒性评估、受体内化研究以及基于流式细胞术的高通量抗体筛选。 CHO细胞系背景确保了大多数人类表面抗原的内源性表达水平较低,从而保证所观察到的信号可归因于稳定表达的Nectin-4转基因。该细胞系已通过验证,可用于药物发现工作流程、临床前候选药物筛选以及Nectin-4受体生物学机制研究。

Tissue
卵巢
Disease
非肿瘤性中国仓鼠卵巢细胞;经基因工程改造,可在细胞表面表达NECTIN4(PVRL4)
Applications
抗体筛选;ADC研发;NECTIN4靶向治疗研发;尿路上皮癌/乳腺癌研究;流式细胞术

02Classification

Organism
Chinese hamster
Sex
Female
Growth properties
Adherent and suspension
GMO status
GMO-S1
GMO status details
GMO-S1: This CHO cell line contains a NECTIN4 expression cassette supporting receptor-function analyses. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮样
Cell type
上皮细胞
Doubling time
约14-16小时

04Identifiers

Citation
CHO-NECTIN4(Cytion 产品编号 305984)
NCBI TaxID
10029
Cellosaurus
CVCL_A8W9

05Expression and susceptibility

Surface antigens
NECTIN4(PVRL4/CD112R)

06Handling and culture

Culture medium

用于粘附培养:DMEM:Ham's F12 (1:1),w: 3.1 g/L 葡萄糖,w: 2.5 mM L-谷氨酰胺,w: 15 mM HEPES,w: 0.5 mM 丙酮酸钠,w: 1.2 g/L NaHCO3(Cytion 商品编号 820400a)。

用于悬浮培养:CHO 生长培养基 A(来自 InSCREENeX;InSCREENeX 目录编号 INS-ME-1039)

Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
用于粘附培养:在培养基中添加 5% FBS。加入基因素(G418-硫酸酯),使最终浓度达到 0.5 mg/mL。
Dissociation reagent
用于粘附培养:胰蛋白酶-EDTA
Subculturing
用于常规粘附细胞培养:吸出粘附细胞中的旧培养基,并用 PBS 冲洗以去除残留的培养基。吸出 PBS 后,根据培养皿大小加入适量的胰蛋白酶/EDTA 溶液(如 T25 烧瓶 1 毫升,T75 烧瓶 3 毫升),室温或 37°C 孵育 5-10 分钟,直至细胞分离。在显微镜下观察细胞分离情况,必要时轻轻拍打容器以释放细胞。细胞分离后,加入完全培养基以灭活胰蛋白酶/EDTA,轻轻重悬细胞,然后将等分的细胞悬浮液转移到装有新鲜培养基的新培养皿中。将培养皿放入温度为 37°C、二氧化碳浓度为 5%的培养箱中,每 2-3 天更换一次培养基。
Split ratio
1 到 5
Seeding density
2至5×10⁴个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Post-thaw recovery

解冻后,按 1:2 至 1:3 的比例将细胞分装在 T25 烧瓶中,让细胞从冷冻过程中恢复并粘附(对于粘附培养物)至少 24 小时。

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

Donor age
成人