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SF188
Tissue
大脑,右额叶
Disease
胶质母细胞瘤
Synonyms
SF-188, SF 188

Documents

SF188

Cell line · Product number 305870

The SF188 cell line is a human glioblastoma multiforme (GBM) model established from a pediatric patient. It is used extensively to study the mechanisms of...

US$800.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

SF188细胞系是一种从一名儿童患者体内建立的人多形性胶质母细胞瘤(GBM)模型。 该细胞系被广泛用于研究化疗耐药机制,特别是对1,3-双(2-氯乙基)-1-亚硝基脲(BCNU)等烷化剂的耐药机制。 与其他源自胶质瘤的细胞系(如 SF126)相比,SF188 对 BCNU 诱导的细胞毒性和遗传毒性表现出显著更高的耐受性。 具体而言,在存活率测定中,SF188 对 BCNU 的耐受性高出约 3 倍,而对 BCNU 诱导的姐妹染色单体交换 (SCE) 的敏感性则低 14 倍,这表明其具有很强的 DNA 损伤耐受表型。

SF188 的耐药性归因于其增强的 DNA 修复能力,尤其是对 O6-烷基鸟嘌呤加合物的快速、高效清除。 在接触 N-甲基-N-亚硝基脲等甲基化剂后,SF188 细胞表现出对 O6-甲基鸟嘌呤损伤的显著清除能力,而敏感性更高的细胞系则仅表现出极少的修复活性。这种高效的损伤修复很可能防止了链间交联的形成,从而维持了基因组完整性并提高了细胞存活率。 重要的是,SF188还具有较高的染色体数目(模态数为91)且不表达胶质纤维酸性蛋白(GFAP),这证实了其源自分化程度较低的胶质瘤,使其成为研究高级别胶质瘤中DNA修复与化疗耐药性之间相互作用的绝佳模型。

Tissue
大脑,右额叶
Disease
胶质母细胞瘤
Synonyms
  • SF-188
  • SF 188

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Doubling time
26 小时

04Identifiers

Citation
SF188(Cytion 产品编号 305870)
NCBI TaxID
9606
Cellosaurus
CVCL_6948

05Expression and susceptibility

Mutational profile
突变:TP53,简单突变,p.Gly266Glu (c.797G>A),纯合子(PubMed=9614553,PubMed=10416987)。

06Handling and culture

Culture medium
EMEM(MEM Eagle),w:2 mM L-谷氨酰胺,w:2.2 g/L NaHCO3,w:EBSS(Cytion 文章编号 820100a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS 和 1% NEAA
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。
Seeding density
2 至 4 × 10⁴ 个细胞/cm²
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
8年