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A549/DDP
Tissue
肺部

Documents

A549/DDP

Cell line · Product number 305047

The A549/DDP cell line is a drug-resistant variant of the A549 cell line, which itself is a model of human alveolar basal epithelial adenocarcinoma. This ...

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1

01General information

Description

A549/DDP 细胞系是 A549 细胞系的耐药变体,A549 细胞系本身是人类肺泡基底上皮腺癌的模型。这种变体是专门针对其对顺铂(DDP)的耐药性而筛选出来的,顺铂是治疗包括肺癌在内的各种癌症的常用化疗药物。A549/DDP 细胞系的开发使研究人员能够研究化疗耐药性的内在机制,而化疗耐药性是癌症治疗中的一大挑战。

在研究中,A549/DDP 细胞系被用来研究顺铂耐药性所涉及的生化途径。这包括探索基因表达、蛋白质功能和细胞代谢的变化,这些变化会产生对顺铂的耐药性。该细胞系在筛选能克服耐药性的新药或药物组合方面也很有价值,为开发更有效的肺癌治疗策略提供了至关重要的见解。

此外,利用 A549/DDP 细胞系进行的研究有助于更好地了解化疗耐药性背景下肺癌进展和转移的分子基础。该细胞系是转化研究的重要工具,可将实验结果转化为肿瘤学的潜在临床应用。

Tissue
肺部

02Classification

Organism
Human
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮细胞

04Identifiers

Citation
A549/DDP(Cytion 产品编号 305047)
NCBI TaxID
9606
Cellosaurus
CVCL_C0W4

05Handling 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。
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。