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KHOS-312H
Tissue
骨质
Disease
骨肉瘤
Synonyms
KHOS-321H, KHOS312H, KHOS321H

Documents

KHOS-312H

Cell line · Product number 300447

KHOS-312H is a human osteosarcoma cell line derived from bone cancer. This cell line is part of a group of KHOS-derived osteosarcoma models, which include...

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01General information

Description

KHOS-312H 是一种源自骨癌的人类骨肉瘤细胞系。该细胞系是一组 KHOS 衍生骨肉瘤模型的一部分,其中包括 KHOSNP 和 KHOS-240S 等。与其他骨肉瘤细胞系一样,KHOS-312H 也被广泛用于癌症研究,以研究骨肉瘤的生物学特性,特别是其遗传和分子特征,并评估潜在的治疗药物。众所周知,KHOS-312H 细胞系对某些靶向激酶抑制剂(如影响 PI3K-Akt-mTOR 通路的抑制剂)具有耐药性,因此是研究骨肉瘤耐药机制的重要模型。

KHOS-312H 细胞系的一个重要特点是它在高通量抗癌药物筛选中的实用性。在大规模筛选研究中,KHOS-312H 已针对一系列化合物进行了测试,其中包括美国 FDA 批准的药物和研究药物。这些研究表明,KHOS-312H 对不同类别的抗癌药物表现出不同程度的敏感性和耐药性,有助于研究人员绘制骨肉瘤对治疗反应的分子图谱。值得注意的是,该细胞系对 mTOR 抑制剂的耐药性尤为突出,这表明可能需要联合疗法或新型药物来克服这一挑战。

Tissue
骨质
Disease
骨肉瘤
Synonyms
  • KHOS-321H
  • KHOS312H
  • KHOS321H

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
纤维母细胞样
Tumourigenic
没有

04Identifiers

Citation
KHOS-312H(Cytion 目录号 300447)
NCBI TaxID
9606
Cellosaurus
CVCL_2545

05Handling 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
1 × 10⁴ 个细胞/平方厘米
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.

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
13 年
Ethnicity
高加索人