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NCI-H3122
Tissue
肺部
Disease
腺癌
Synonyms
NCI-H3122, H-3122, NCIH3122

Documents

NCI-H3122

Cell line · Product number 300484

The NCI-H3122 cell line is derived from non-small-cell lung cancer (NSCLC) and is characterized by the presence of the EML4-ALK fusion gene, which results...

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01General information

Description

NCI-H3122细胞系源自非小细胞肺癌(NSCLC),其特征是存在EML4-ALK融合基因,该基因由棘皮微管相关蛋白样4(EML4)和无性淋巴瘤激酶(ALK)之间的染色体易位产生。这种融合驱动了致癌信号转导,使NCI-H3122细胞的存活高度依赖于ALK信号转导,被称为 "ALK上瘾"。NCI-H3122 已成为研究靶向疗法,特别是克唑替尼等 ALK 抑制剂的关键模型。

研究表明,NCI-H3122 细胞对克唑替尼敏感,克唑替尼能抑制 ALK 磷酸化及其下游靶点,如 AKT 和 ERK 通路。然而,克唑替尼往往会产生耐药性,通常是由于表皮生长因子受体(EGFR)激活等替代信号通路所致。这种耐药机制已在 NCI-H3122 耐药变异株中得到证实,在这些变异株中观察到 EGFR 磷酸化增加,而使用克唑替尼和 EGFR 抑制剂(如阿法替尼或厄洛替尼)对 ALK 和 EGFR 进行双重抑制则可克服耐药性。

NCI-H3122常用于探索旨在预防或逆转耐药性的联合疗法。例如,在临床前模型中,同时靶向 ALK 和表皮生长因子受体通路是一种成功的策略,这种双重抑制被认为是 ALK 阳性、克唑替尼耐药的 NSCLC 患者的一种潜在治疗方法。

Tissue
肺部
Disease
腺癌
Synonyms
  • NCI-H3122
  • H-3122
  • NCIH3122

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Identifiers

Citation
NCI-H3122(Cytion 目录号 300484)
NCBI TaxID
9606
Cellosaurus
CVCL_5160

04Handling and culture

Culture medium
RPMI 1640,w:2.0 mM 稳定谷氨酰胺,w:2.0 g/L NaHCO3(Cytion 文章编号 820700a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
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。
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.

05Quality 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。

06Donor

Ethnicity
高加索人