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CESS 细胞
Tissue
外周血
Disease
急性髓性白血病
Synonyms
Cess

Documents

CESS 细胞

Cell line · Product number 300262

The CESS cell line is a B lymphoblastoid cell line derived from a human patient with leukemia. This cell line is commonly used to study immunoglobulin pro...

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01General information

Description

CESS 细胞系是一种 B 淋巴母细胞系,来源于一名人类白血病患者。由于该细胞系对细胞因子刺激反应强烈,因此常用于研究免疫球蛋白的产生,尤其是 IgG 的分泌。CESS 细胞由 EBV 转化而来,具有成熟 B 细胞的表面标记,如 CD19 和 CD38。它们表达 sIgG1 类免疫球蛋白,可作为研究 B 细胞分化和功能的模型,包括受白细胞介素-6(IL-6)等细胞因子(又称 B 细胞刺激因子 2(BSF-2))调控的免疫反应。IL-6 在刺激 CESS 细胞产生免疫球蛋白方面起着至关重要的作用,使其成为免疫学研究中研究 B 细胞反应的宝贵模型。

此外,CESS 细胞还有助于细胞信号传导和细胞凋亡方面的研究。值得注意的是,这些细胞已被证明能通过自分泌信号机制产生神经生长因子(NGF)并对其做出反应,同时表达高亲和力和低亲和力的 NGF 受体。用抗体或特异性抑制剂阻断 NGF 信号可诱导 CESS 细胞凋亡,其特征是 Bcl-2 磷酸化和 p38 MAPK 通路激活。这使 CESS 细胞成为了解 B 细胞存活和凋亡分子机制的一个重要模型,尤其是在 NGF 信号转导及其对 Bcl-2 家族蛋白的调控方面。

Tissue
外周血
Disease
急性髓性白血病
Applications
建立人类 T 杂交瘤细胞系
Synonyms
  • Cess

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
淋巴母细胞

04Identifiers

Citation
CESS(Cytion 目录号 300262)
NCBI TaxID
9606
Cellosaurus
CVCL_0209

05Expression and susceptibility

Viruses
被 EBV 转化
Products
TRF(T 细胞替代因子)诱导后的 IL-2

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% FBS
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
建议使用1×10⁴个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Post-thaw recovery
让细胞从冷冻过程中恢复至少 48 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.

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

Ethnicity
欧洲