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SNU-81
Tissue
结肠
Disease
腺癌
Synonyms
SNU81, NCI-SNU-81

Documents

SNU-81

Cell line · Product number 305638

The SNU-81 cell line is a human colorectal carcinoma model established from a Korean patient. It is part of a collection of 12 colorectal cancer cell line...

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  • CoA
1

01General information

Description

SNU-81 细胞系是从一名韩国患者身上建立的人类结直肠癌模型。它是 12 个大肠癌细胞系的一部分,这些细胞系来自原发性肿瘤和转移部位,提供了肿瘤生物学的多样性代表。SNU-81 源自原发性结直肠腺癌,在培养过程中呈上皮形态并粘附生长。该细胞系表达癌胚抗原(CEA),并分泌到培养上清液中,反映了典型的结直肠肿瘤特征。

在分子水平上,SNU-81 经过了广泛的基因鉴定。它的 TP53 抑癌基因发生了突变,这是结肠直肠癌发生过程中的常见现象,通常与肿瘤后期进展有关。此外,还发现了 APC 基因的突变,这意味着 Wnt/β-catenin 信号的中断,而这正是结直肠癌发展的标志。该品系的 K-ras2 基因未发现活化突变。此外还观察到细胞周期调节因子的改变,如 p16 基因的高甲基化,这进一步支持了该细胞系在研究驱动结直肠癌的遗传和表观遗传机制方面的实用性。总之,SNU-81 是一种定义明确的体外模型,可用于探索肿瘤抑制基因的功能、致癌通路调控以及结直肠癌研究中对靶向疗法的反应。

Tissue
结肠
Disease
腺癌
Synonyms
  • SNU81
  • NCI-SNU-81

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
Cell type
上皮细胞
Doubling time
30 小时

04Identifiers

Citation
SNU-81(Cytion 目录编号 305638)
NCBI TaxID
9606
Cellosaurus
CVCL_5098

05Expression and susceptibility

Mutational profile
突变:APC,简单,p.Ser1392Ter (c.4175C>A),杂合;突变:APC,简单,p.Arg1450Ter (c.4348C>T),杂合;突变:APC,简单,p.Arg2204Ter (c.6610C>T),杂合子;突变:FBXW7,简单,p.Arg479Gln (c.1436G>A),杂合子;突变:KRAS,简单,p.Ala146Thr (c.436G>A),杂合子;突变:PTEN,简单,p.Arg130Gln (c.389G>A),杂合;突变:PTEN,简单,p.Glu299Ter (c.895G>T),杂合子;突变:TBX3,简单,p.Glu111Ter (c.331G>T),杂合;突变:TBX3,简单,c.942-1G>T,杂合;突变:TP53,简单,p.Lys132Thr (c.395A>C),杂合子;突变:TP53,简单,p.Arg213Ter (c.637C>T),杂合子

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 10% FBS
Dissociation reagent
Accutase
Subculturing
移去培养基,加入新的 0.25 % 胰蛋白酶 0.02 % EDTA 溶液,将培养瓶在 37''''C 下静置 3 至 5 分钟,加入培养基并收集细胞,将培养基转移到 15 毫升试管中,离心,吸出培养基,用培养基重悬细胞团并分配到培养瓶中。
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.

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
53 年
Ethnicity
韩语