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香港/ FDC 细胞
Tissue
口腔、扁桃体
Disease
非肿瘤性滤泡树突状细胞系
Synonyms
FDC/HK

Documents

香港/ FDC 细胞

Cell line · Product number 300204

Immortalized versions of these HK/FDC-like cells are now also ava...

US$800.00excl. tax and shipping
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1

01General information

Description
这些HK/FDC样细胞的永生化版本现已问世,为长期研究滤泡树突状细胞功能及B细胞相互作用提供了更稳定且可扩展的研究工具。

为探究滤泡树突状细胞(FDC)在淋巴滤泡生发中心中的作用,我们从人类扁桃体中建立了滤泡树突状细胞(FDC)样细胞系(HK细胞)。 HK细胞最初表达CD21、CD23、DRC-1、CD40、VCAM-1、ICAM-1和HJ2等标记物,但在培养三天内会失去DRC-1、CD21和CD23。 形态学和功能学上,HK细胞与成纤维细胞存在差异,具有独特的生长需求。它们能与B细胞结合并促进其增殖,但不与T细胞结合。经抗CD3抗体激活的T细胞可与HK细胞结合,诱导其表型改变并促进其生长。

HK细胞优先结合并激活生发中心(GC)B细胞,使其免于凋亡。在抗μ或抗CD40抗体存在下,它们能增强B细胞增殖。这些细胞还产生可溶性因子,参与协同刺激活性。表型与功能分析表明,HK细胞可能源自滤泡树突细胞(FDCs),凸显其在支持GC B细胞成熟与分化中的潜在作用。

Tissue
口腔、扁桃体
Disease
非肿瘤性滤泡树突状细胞系
Applications
正常 B 淋巴细胞和淋巴瘤/白血病生长的供养细胞。研究淋巴结生殖中心的 B 细胞发育。可能对 FDC 的病毒感染进行研究
Synonyms
  • FDC/HK

02Classification

Organism
Human
Sex
Unspecified
Growth properties
Adherent
GMO status
Non-GMO
GMO status details
No genetic modification; wildtype immortalized cell line
Biosafety level
1

03Characteristics

Morphology
子宫肌瘤
Cell type
滤泡树突状细胞
Doubling time
约24-36小时

04Identifiers

Citation
HK/FDC(Cytion 目录号 300204)
NCBI TaxID
9606
Cellosaurus
CVCL_IY38

05Expression and susceptibility

Surface antigens
CD14+,CD40+,ICAM-1+,VCAM-1+

06Handling 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。
Split ratio
1 至 3
Seeding density
1至3×10⁴个细胞/平方厘米
Fluid renewal
每周 1 至 2 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.

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
儿童
Ethnicity
高加索人