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A431 细胞
Tissue
表皮
Disease
鳞状细胞癌
Synonyms
A-431, A431/P

Documents

A431 细胞

Cell line · Product number 300112

The A431 cell line, derived from a solid epidermoid carcinoma tumor in an 85-year-old female patient, is a human tumor cell line with an epithelial morpho...

US$395.00excl. tax and shipping
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Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

A431 细胞系来源于一名 85 岁女性患者的实体表皮样癌肿瘤,是一种具有上皮形态的人类肿瘤细胞系,通常成簇生长。A-431 细胞系被广泛用于癌症、毒性和免疫肿瘤学研究,由于其受体密度高,可作为表皮生长因子(EGF)受体表达的阳性对照。

表皮生长因子与其 A431 细胞表面的受体(表皮生长因子受体)结合后,膜蛋白会迅速发生酪氨酸磷酸化,从而引发一连串的细胞内信号通路。这些通路包括 MAPK/ERK 和 PI3K/AKT 通路,它们在调节细胞周期进展、存活和增殖方面起着关键作用。

表皮生长因子受体在低浓度时会刺激细胞增殖,而在高浓度时则会抑制生长并诱导 A431 细胞末期分化。这种对表皮生长因子受体的动态反应突出表明了该细胞系在探索癌症中细胞信号通路和细胞周期方面的作用。

A-431 细胞衍生异种移植模型用于研究活体环境中的肿瘤行为和评估抗癌疗法。这些模型有助于评估 EGF 补充剂和辐射等治疗方法如何影响肿瘤生长,并突显细胞对辐射的敏感性。

总之,A-431 细胞系是一种非常宝贵的人类表皮样癌细胞模型,有助于加深对表皮生长因子受体信号转导、肿瘤生物学的了解,并有助于开发治疗表皮样癌和其他相关癌症的干预措施。

Tissue
表皮
Disease
鳞状细胞癌
Synonyms
  • A-431
  • A431/P

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样,扁平多角形
Tumourigenic
是,在免疫抑制小鼠中
Karyotype
六条标记染色体重排:der(6)、der(7)、der(17)、der(21)、dic(13,14)和 dic(14,18)。两条标记染色体上 8q24 处的 C-MYC 癌基因扩增:dup(8)(q24) 和 der(15)t(8,15)(q22,p11) 。

04Identifiers

Citation
A431(Cytion 目录编号 300112)
NCBI TaxID
9606
Cellosaurus
CVCL_0037

05Expression and susceptibility

Receptors expressed
表皮生长因子结合点
Protein expression
P53 阳性
Isoenzymes
G6PD,B,PGM1,1,PGM3,1,ES-D,1,Me-2,0,AK-1,1,GLO-1,2
Mutational profile
BRAF V600Ewt
Products
HBp17

06Handling and culture

Culture medium
DMEM,w:4.5 克/升葡萄糖,w:4 毫摩尔 L-谷氨酰胺,w:3.7 克/升 NaHCO3,w:1.0 毫摩尔丙酮酸钠(Cytion 编号 820300a)。
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
1×10⁴个细胞/cm²将在4天内形成融合的单层细胞。
Fluid renewal
每周 2 至 3 次
Post-thaw recovery
解冻后,将细胞以5×10⁴个细胞/平方厘米的密度接种于培养皿中,使细胞从冷冻过程中恢复并至少贴壁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
85 岁