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GM12878
Tissue
外周血
Synonyms
GM-12878

Documents

GM12878

Cell line · Product number 305439

The GM12878 cell line is a well-characterized human lymphoblastoid cell line, transformed with Epstein-Barr virus (EBV). It has been used as a standard Ti...

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01General information

Description

GM12878 细胞系是一种经 Epstein-Barr 病毒(EBV)转化的特性良好的人类淋巴母细胞系。它已被用作 DNA 元素百科全书(ENCODE)项目的标准 1 级细胞系,是遗传和转录组学研究中研究最广泛的模型之一。GM12878 源自女性供体,与 HeLa 和 HEK293 等更常用的细胞系相比,GM12878 以其稳定的核型而著称,后者具有广泛的染色体非整倍体。

由于这些细胞具有 B 淋巴细胞系,因此对了解染色质结构、基因调控和免疫反应特别有价值。GM12878 细胞已被用于高通量研究,包括 ChIP-seq 分析以绘制转录因子结合位点和组蛋白修饰图,MNase-seq 以绘制核小体图,以及 RNA-seq 以绘制转录组图谱。涉及 GM12878 的研究阐明了转录因子相互作用的各个方面,如 FOXM1 及其辅助因子的结合,以及它们在细胞周期和免疫反应途径中的作用。

此外,GM12878 还是基因组编辑实验的平台,旨在为下一代测序(NGS)验证创建参考材料。例如,在 GM12878 中引入了 CRISPR/Cas9 介导的基因组修饰,以开发癌症突变分析的对照材料,这说明了 GM12878 在精准医疗和基因检测中的应用。

Tissue
外周血
Synonyms
  • GM-12878

02Classification

Organism
Human
Sex
Female
Growth properties
Suspension
Biosafety level
2

03Characteristics

Morphology
淋巴母细胞样

04Identifiers

Citation
GM12878(Cytion 目录号 305439)
NCBI TaxID
9606
Cellosaurus
CVCL_7526

05Expression and susceptibility

Mutational profile
突变:CYP2C19,p.Pro227Pro (c.681G>A)
Viruses
变异体:爱泼斯坦-巴氏病毒(EBV)

06Handling 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 15% 的 FBS
Subculturing
通过定期添加或更换培养基来维持细胞培养。初始培养时细胞密度应为5×10⁵个细胞/毫升,并保持细胞浓度在3×10⁵至1×10⁶个细胞/毫升范围内以获得最佳生长效果。
Post-thaw recovery
解冻后,让细胞从冷冻过程中恢复至少 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
未说明