Skip to content
SK-GT-4
Tissue
食管远端
Disease
腺癌
Synonyms
SKGT4, SK4

Documents

SK-GT-4

Cell line · Product number 305454

The SK-GT-4 cell line is a human esophageal adenocarcinoma model derived from primary adenocarcinoma arising in dysplastic Barrett's metaplasia of the dis...

US$375.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

SK-GT-4细胞系是一种人类食管腺癌模型,源自远端食管巴雷特氏异型增生中发生的原发性腺癌。 该细胞系属于斯隆-凯特琳纪念癌症中心建立的 SK-GT 系列,在研究巴雷特食管向食管腺癌的进展方面发挥了重要作用。 SK-GT-4 细胞表现出上皮特征,是研究食管癌分子机制(尤其是涉及 p53 抑癌基因突变的机制)的宝贵工具。

对 SK-GT-4 的基因组研究发现了 TP53 基因中的突变,具体为外显子 5 的第 175 个密码子处发生 G 到 A 的转换,导致精氨酸被组氨酸取代。 该突变与对5-氟尿嘧啶、丝裂霉素C和顺铂等DNA损伤性药物的化疗耐药性相关。 研究表明,p53的突变状态显著影响SK-GT-4细胞对化疗的反应,进而影响其细胞周期调控和凋亡。这些特征使该细胞系成为探索针对p53相关通路治疗策略的关键模型。

SK-GT-4已被用于评估食管腺癌的肿瘤侵袭潜能及其对生长因子的反应。该细胞系在博伊登室实验中表现出侵袭能力,凸显了其在研究转移过程中的重要性。 SK-GT-4还表达多种生长因子的转录本,包括TGF-β和血小板衍生生长因子,这些因子促使其呈现侵袭性表型。该细胞系在转化医学研究中确立的作用,凸显了其在基础癌症生物学和药物研发领域的实用价值。

Tissue
食管远端
Disease
腺癌
Synonyms
  • SKGT4
  • SK4

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
2

03Characteristics

Morphology
上皮样
Cell type
上皮细胞
Doubling time
30-35小时

04Identifiers

Citation
SK-GT-4(Cytion 产品编号 305454)
NCBI TaxID
9606
Cellosaurus
CVCL_2195

05Expression and susceptibility

Mutational profile
突变:KRAS,简单突变,p.Gly12Ala (c.35G>C),杂合子;突变:PIK3CA,简单突变,p.Glu542Lys (c.1624G>A),杂合子; 突变:TP53,简单突变,p.Gln100Ter (c.298C>T),纯合子
Viruses
EBV 阴性、HBV 阴性、HCV 阴性、HIV-1 阴性、HIV-2 阴性、HPV 阴性、HTLV-I/-II 阴性、MLV 阴性

06Handling and culture

Culture medium
RPMI 1640,w:2.1 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。
Seeding density
2-4×10⁴/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
89 年
Ethnicity
高加索人