Skip to content
KPL-4
Tissue
乳房
Disease
乳腺炎症癌
Metastatic site
胸腔积液
Synonyms
KPL4

Documents

KPL-4

Cell line · Product number 305578

The KPL-4 cell line is a human breast cancer model originally derived from the malignant pleural effusion of a patient with inflammatory breast cancer. Th...

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

01General information

Description

KPL-4 细胞系是一种人类乳腺癌模型,最初来源于一名炎性乳腺癌患者的恶性胸腔积液。这种细胞系表现出 HER2(ErbB-2)的过度表达和扩增,以及其他 ErbB 家族受体(包括 HER1(表皮生长因子受体)和 HER3)的表达。这些特点使其特别适用于研究侵袭性 HER2 阳性乳腺癌的分子机制和测试靶向疗法。

KPL-4 细胞具有很强的致瘤性,已被用于在免疫缺陷小鼠体内建立异种移植模型。这些模型表明,KPL-4 肿瘤会分泌大量白细胞介素-6(IL-6),导致宿主动物出现恶病质。IL-6的分泌与肿瘤负荷相关,突显了HER2阳性癌症的肿瘤生物学系统效应。重要的是,KPL-4细胞对曲妥珠单抗等抗HER2疗法有反应,但这些疗法的体内疗效不一,可能是由于这种癌症模型的侵袭性。

该细胞系还被用于高级治疗研究。例如,针对 HER2 的光激活抗体模拟药物共轭物(AMDCs)已在 KPL-4 异种移植模型中显示出疗效。这些疗法将 HER2 特异性结合分子与光激活的细胞毒性有效载荷结合在一起,可显著减少肿瘤,同时将脱靶效应降至最低。这些研究强调了 KPL-4 细胞在评估 HER2 阳性乳腺癌新疗法中的作用。

Tissue
乳房
Disease
乳腺炎症癌
Metastatic site
胸腔积液
Synonyms
  • KPL4

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
MSI status
稳定 (MSS)

04Identifiers

Citation
KPL-4(Cytion 目录号 305578)
NCBI TaxID
9606
Cellosaurus
CVCL_5310

05Handling 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 TrypLE Express 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 毫升培养基轻轻混匀细胞使其重悬,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。
Fluid renewal
每周 2 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.

06Quality 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。

07Donor

Donor age
52 年
Ethnicity
日语