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DOHH-2
Tissue
胸腔积液
Disease
弥漫大 B 细胞淋巴瘤
Synonyms
DOHH2, DoHH-2, DOHH-2

Documents

DOHH-2

Cell line · Product number 305537

DOHH-2 is a human diffuse large B-cell lymphoma (DLBCL) cell line that is used to model various aspects of B-cell malignancies, including drug resistance ...

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

01General information

Description

DOHH-2是一种人弥漫性大B细胞淋巴瘤(DLBCL)细胞系,用于模拟B细胞恶性肿瘤的各个方面,包括耐药性和治疗效果。该细胞系对于评估靶向治疗和联合治疗方案对肿瘤生长的影响具有特别重要的价值。 研究表明,DOHH-2 细胞对 Bcl-2 抑制剂 ABT-263(navitoclax)有反应,该药物已与多种化疗药物联合使用,以增强治疗效果。 例如,研究发现将ABT-263与依托泊苷和长春新碱联合使用,对细胞存活和凋亡具有协同作用,这表明该药物在DLBCL联合治疗中具有改善治疗效果的潜力。 涉及 DOHH-2 的体内模型还表明,将 ABT-263 与 CHOP 等治疗方案联合使用可显著提高肿瘤反应率并延缓肿瘤生长,这突显了其在临床前药物测试中的实用价值。

此外,针对DOHH-2对传统化疗以外各种靶向治疗的反应也进行了研究。特别是,CD20抗体奥比努单抗与Bcl-2抑制剂维奈托克及MDM2抑制剂伊达沙努汀的三联组合,在临床前模型中展现出卓越的疗效,既能缩小肿瘤体积,又能实现完全缓解。 这一方法凸显了DOHH-2在推动旨在实现DLBCL更好长期控制的新型治疗策略方面所发挥的作用。

Tissue
胸腔积液
Disease
弥漫大 B 细胞淋巴瘤
Synonyms
  • DOHH2
  • DoHH-2
  • DOHH-2

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
GMO status
GMO-S1
GMO status details
GMO-S1: This human lymphoma cell line (DOHH-2) contains EBV-derived genome fragments due to EBV transformation but does not release infectious virus. The modification is stably present in diffuse large B-cell lymphoma cells. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Identifiers

Citation
DOHH-2(Cytion 产品编号 305537)
NCBI TaxID
9606
Cellosaurus
CVCL_1179

04Expression and susceptibility

Viruses
转化体:爱泼斯坦-巴尔病毒(EBV)。

05Handling and culture

Culture medium
RPMI 1640,w:2.0 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% 热灭活 FBS
Subculturing
将悬浮细胞收集到 15 毫升试管中,用不含钙和镁的 PBS(T25 烧瓶用 3-5 毫升,T75 烧瓶用 5-10 毫升)轻轻清洗粘附的细胞。涂抹 Accutase(T25 烧瓶 1-2 毫升,T75 烧瓶 2.5 毫升),确保完全覆盖细胞层。让细胞在室温下孵育 10 分钟。孵育后,将悬浮细胞和粘附细胞混合并离心。离心后,小心重悬细胞团,并将细胞悬浮液转移到装有新鲜培养基的新烧瓶中。
Seeding density
3-5×10⁵/毫升
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
60 年
Ethnicity
高加索人