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MEC-1
Tissue
外周血
Disease
慢性淋巴细胞白血病
Synonyms
MEC1

Documents

MEC-1

Cell line · Product number 305434

The MEC-1 cell line is derived from a patient with chronic lymphocytic leukemia (CLL) in the prolymphocytoid transformation stage. It serves as a critical...

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01General information

Description

MEC-1细胞系源自一名处于前淋巴细胞样转化阶段的慢性淋巴细胞白血病(CLL)患者。该细胞系是研究B细胞恶性肿瘤生物学特性,特别是CLL的分子机制及其对治疗反应的关键模型。 MEC-1细胞的特征是表达CD19和CD5标志物,这与其源自CLL的起源相一致,且该细胞系被广泛用于研究白血病中的化疗耐药机制和代谢适应机制。

利用MEC-1细胞开展的研究深入阐明了肿瘤微环境与白血病细胞存活之间的相互作用。例如,该细胞系在识别靶向治疗(如Bcl-2拮抗剂维奈托克)的耐药机制方面发挥了关键作用。 在耐药的MEC-1衍生物(MEC-1 VER)中,观察到p38 MAPK的过表达以及促凋亡和抗凋亡蛋白表达的改变。这凸显了靶向p38 MAPK和免疫蛋白酶体等通路以克服药物耐药性的潜力。

在缺氧条件下,MEC-1细胞会发生代谢重编程,以维持其生存和增殖。这种适应机制包括GLUT1和GLUT3等葡萄糖转运蛋白表达的增加,以及由缺氧诱导因子(HIFs)调控的糖酵解和乳酸生成模式的转变。 此外,利用CRISPR/Cas9技术介导特定微RNA(如miR-155)缺失的研究表明,这些微RNA在缺氧应激条件下对MEC-1细胞代谢和增殖的调控中发挥着重要作用,为治疗干预提供了新的途径。

Tissue
外周血
Disease
慢性淋巴细胞白血病
Synonyms
  • MEC1

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent and suspension
Biosafety level
1

03Characteristics

Morphology
淋巴母细胞样
Cell type
B 细胞

04Identifiers

Citation
MEC-1(Cytion 产品编号 305434)
NCBI TaxID
9606
Cellosaurus
CVCL_1870

05Expression and susceptibility

Mutational profile
突变:TP53,p.Gln317Profs*20 (c.949dupC) (c.949_950insC),纯合子;基因融合:R3HCC1L-HTRA1
Viruses
变异体:爱泼斯坦-巴氏病毒(EBV)

06Handling and culture

Culture medium
IMDM, w:4.5 克/升葡萄糖, w:4 毫摩尔 L-谷氨酰胺, w:25 毫摩尔 HEPES, w:1.0 毫摩尔丙酮酸钠, w:3.024 克/升 NaHCO3(Cytion 文章编号 820800a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
Seeding density
3-5×10⁵/毫升
Fluid renewal
每周 2 至 3 次
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
61 年
Ethnicity
高加索人