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B-LCL-HROC59
Tissue
外周血
Disease
癌症
Synonyms
Bc HROC59, TiBcHROC59

Documents

B-LCL-HROC59

Cell line · Product number 302073

B-LCL-HROC59 is an Epstein-Barr virus (EBV)-immortalized human B lymphoblastoid cell line generated from tumor-infiltrating B cells (TiBc) isolated from a...

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01General information

Description

B-LCL-HROC59是一种由原发性结直肠癌(编号HROC59)中分离的肿瘤浸润性B细胞(TiBc)建立的、经EB病毒(EBV)永生化的人B淋巴母细胞样细胞系。该原发肿瘤取自一名患有右侧散发性结直肠癌且处于晚期阶段的成年男性患者。 新鲜肿瘤组织经机械分散制备单细胞悬液,在环孢素A抑制T细胞与NK细胞扩增的条件下,利用B95/8松鼠猴细胞系来源的EBV含病毒上清液进行体外选择性永生化。长期培养后,通过免疫球蛋白基因重排分析证实,该细胞系可稳定增殖单克隆B细胞群体。

B-LCL-HROC59细胞仅分泌免疫球蛋白G(IgG)亚型,且在长期培养中保持稳定产率。在细胞结合实验中,该细胞来源的IgG对受试异源性结直肠癌细胞系的结合能力显著弱于其他TiBc来源的IgG(后者对肿瘤细胞具有更强反应性)。 在建立培养体系时,未检测到外源性EBV条件下B细胞自发增殖的证据,表明其永生化过程发生于体外而非反映体内EBV潜伏驱动的转化。 作为单克隆、抗原经验丰富的肿瘤浸润性B细胞系,B-LCL-HROC59为研究结直肠癌微环境中的体液免疫反应,以及探索肿瘤相关抗体的特异性和功能特性提供了明确的模型。

Tissue
外周血
Disease
癌症
Synonyms
  • Bc HROC59
  • TiBcHROC59

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
Biosafety level
2

03Characteristics

Morphology
圆形电池
Cell type
B 淋巴细胞

04Identifiers

Citation
B-LCL-HROC59(Cytion 目录号 302073)
NCBI TaxID
9606
Cellosaurus
CVCL_A7US

05Expression and susceptibility

Surface antigens
CD19
Viruses
变形体:EBV

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
通过上下吸取操作轻柔匀化烧瓶中的细胞悬液,随后取代表性样本测定每毫升细胞密度。用新鲜培养基将悬液稀释至1×10⁵细胞/毫升浓度,并将调整后的悬液分装至新烧瓶中进行后续培养。
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
76 年
Ethnicity
高加索人