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Pfeiffer
Tissue
胸腔积液
Disease
弥漫大 B 细胞淋巴瘤
Synonyms
PFEIFFER

Documents

Pfeiffer

Cell line · Product number 305850

Pfeiffer is a human diffuse large B-cell lymphoma (DLBCL) cell line derived from the malignant lymphoid tissue of an adult patient. It represents a mature...

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  • CoA
1

01General information

Description

Pfeiffer细胞系源自成人患者的恶性淋巴组织,属于人类弥漫性大B细胞淋巴瘤(DLBCL)细胞系。该细胞系代表成熟B细胞肿瘤,在标准培养条件下可作为单细胞或小聚集体悬浮生长。 形态学上,Pfeiffer细胞呈现典型巨型转化B淋巴细胞特征,包括高核质比、显著核仁及分散染色质。该细胞系表达B细胞相关表面标志物(CD19、CD20、CD22及表面免疫球蛋白),与起源于生发中心或后生发中心B细胞的特性相符。

在分子层面,Pfeiffer细胞携带具有侵袭性B细胞淋巴瘤特征的遗传改变。常见异常包括影响关键致癌通路的紊乱(如BCL6失调)以及参与增殖和生存的信号级联改变(包括NF-κB和PI3K/AKT通路)。与许多DLBCL模型类似,Pfeiffer细胞呈现复杂的核型变化,并在与淋巴瘤发生密切相关的基因中存在体细胞突变。 该细胞系已被纳入大规模基因组和药物基因组学分析项目,其作为研究DLBCL遗传异质性和治疗脆弱性的代表性模型具有重要价值。

功能层面,Pfeiffer细胞系被广泛用于探究B细胞受体信号传导机制、抗体依赖性细胞毒性(ADCC)作用,以及对靶向药物的响应(如抗CD20单克隆抗体、激酶抑制剂和表观遗传调节剂)。其强烈的CD20表达特性使其成为评估利妥昔单抗介导的免疫效应功能的理想体外模型。 因此,Pfeiffer模型成为解析侵袭性B细胞淋巴瘤分子驱动因素、以及对新型免疫治疗和低分子药物策略进行临床前测试的宝贵实验系统。

Tissue
胸腔积液
Disease
弥漫大 B 细胞淋巴瘤
Synonyms
  • PFEIFFER

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
淋巴母细胞
Cell type
B细胞
Doubling time
24-30小时

04Identifiers

Citation
Pfeiffer(赛通产品编号305850)
NCBI TaxID
9606
Cellosaurus
CVCL_3326

05Expression and susceptibility

Antigen expression
CD10;智人 CD19;智人 CD20;智人 CD38;智人 CD10+、CD19+、CD20+、CD38+、CD23-、CD39-
Mutational profile
突变:p.Arg1171Cys,杂合子

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
Dissociation reagent
无
Seeding density
2至10×10⁵/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 200 x g for 5 minutes, carefully discard the supernatant containing freezing medium.

  7. Follow the procedure described under Post-Thaw Recovery

07Quality control and cryopreservation

Freeze medium
作为冷冻保存培养基,我们使用完全生长培养基+10% DMSO,以获得足够的解冻后存活率。
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
成人
Ethnicity
高加索人