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SKW-3
Tissue
造血
Disease
T 细胞白血病(CLL)
Synonyms
SKW3

Documents

SKW-3

Cell line · Product number 300343

The SKW-3 cell line, originally believed to be derived from the peripheral blood of a 61-year-old male diagnosed with chronic lymphocytic leukemia (CLL), ...

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

01General information

Description

SKW-3 细胞系最初被认为来自一名被诊断患有慢性淋巴细胞白血病(CLL)的 61 岁男性的外周血,它是癌症研究,尤其是 B 细胞白血病研究中的一个重要兴趣点。随着时间的推移,使用短串联重复(STR)分析法进行的关键性重新评估揭示了一个重要问题--KKW-3 细胞并非来自 CLL 患者的纯细胞系,而是受到污染的细胞系,现在已被确认为 KE-37 细胞系的衍生物。这一发现对过去的研究和未来的研究产生了深远的影响,强调了对细胞系进行严格鉴定以确保实验准确性的必要性。

KE-37是SKW-3细胞的真正来源,是一种从急性淋巴细胞白血病(ALL)患者身上建立的B细胞系。由于污染,SKW-3 细胞系的来源从 CLL 变为 ALL,这大大改变了 SKW-3 细胞系的生物学背景和用途。对于研究人员来说,这意味着必须严格评估和修改之前使用 SKW-3 时归因于 CLL 特异性机制的任何发现或数据。由于被重新归类为 KE-37 的衍生物,SKW-3 细胞的应用必须转向与 ALL 及其潜在机制更相关的研究,而不是 CLL。

Tissue
造血
Disease
T 细胞白血病(CLL)
Synonyms
  • SKW3

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
圆形电池
Cell type
T 淋巴细胞
Doubling time
30 小时

04Identifiers

Citation
SKW-3(Cytion 目录号 300343)
NCBI TaxID
9606
Cellosaurus
CVCL_2197

05Expression and susceptibility

Antigen expression
CD2+、CD3-、CD4+、CD8、Thy-1 类抗原
Products
LECT2(趋化蛋白)

06Handling 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
通过定期添加或更换培养基来维持细胞培养。初始培养时细胞密度应为5×10⁵个细胞/毫升,并保持细胞浓度在3×10⁵至1×10⁶个细胞/毫升范围内以获得最佳生长效果。
Post-thaw recovery
1 × 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.

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
27 年
Ethnicity
高加索人