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BT-474 细胞
Tissue
乳房、乳腺
Disease
浸润性导管癌
Metastatic site
导管
Synonyms
Bt-474, BT474

Documents

BT-474 细胞

Cell line · Product number 300131

BT-474 is a human breast cancer cell line, derived from the ductal carcinoma of a 60-year-old female. This cell line is estrogen and progesterone receptor...

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

01General information

Description

BT-474 是一种人类乳腺癌细胞系,来源于一名 60 岁女性的乳腺导管癌。该细胞系雌激素和孕激素受体阳性,是研究激素反应性乳腺癌的重要模型。BT-474 细胞的另一个特点是 HER2/neu(人表皮生长因子受体 2)的过度表达,这种蛋白质被扩增,在某些侵袭性乳腺癌的发病和发展过程中起着至关重要的作用。

BT-474 细胞系被广泛用于肿瘤研究,以研究乳腺癌增殖的分子机制,并测试针对激素受体和 HER2 通路的治疗策略。这些细胞尤其适用于研究 HER2 靶向疗法(如曲妥珠单抗(赫赛汀))的疗效,以及探索这些疗法的抗药性机制。该细胞系还有助于进一步了解激素操作如何影响癌细胞的生长和存活,为激素依赖性肿瘤的潜在治疗方法提供启示。

Tissue
乳房、乳腺
Disease
浸润性导管癌
Metastatic site
导管
Synonyms
  • Bt-474
  • BT474

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
Tumourigenic
是,在裸鼠身上
MSI status
稳定 (MSS)
Karyotype
模式 = 55,范围 = 50 至 112,双峰移位 58 - 59,在有 3 条标记染色体的后期传递中为 100
Doubling time
60 至 80 小时

04Identifiers

Citation
BT-474(Cytion 目录号 300131)
NCBI TaxID
9606
Cellosaurus
CVCL_0179

05Expression and susceptibility

Receptors expressed
her-2/neu+, er+, pr+
Isoenzymes
G6PD,B,PGM3,1,PGM1,1,ES-D,1,Me-2,0,AK-1,1,GLO-1,1,表型频率产品: 0.0426
Mutational profile
TP53 突变
Virus susceptibility
小鼠乳腺肿瘤病毒(RIII-MuMTV)

06Handling and culture

Culture medium
DMEM:Ham's F12(1:1),w: 3.1 g/L 葡萄糖,w: 2.5 mM L-谷氨酰胺,w: 15 mM HEPES,w: 0.5 mM 丙酮酸钠,w: 1.2 g/L NaHCO3(Cytion 文章编号 820400a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS、10 微克/毫升胰岛素
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
2×10⁴个细胞/cm²将在约4天内形成基本融合的细胞层。
Fluid renewal
每周 2 至 3 次
Post-thaw recovery
几乎 100% 的回收细胞存活率大于 90
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
60 年
Ethnicity
高加索人