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MML-1
Tissue
皮肤
Disease
黑色素瘤
Synonyms
MML1

Documents

MML-1

Cell line · Product number 300288

The MML-1 cell line is a melanoma cell line derived from malignant melanoma. This cell line is used primarily to study melanoma biology, particularly the ...

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01General information

Description

MML-1 细胞系是一种从恶性黑色素瘤中提取的黑色素瘤细胞系。该细胞系主要用于研究黑色素瘤生物学,特别是细胞外囊泡 (EV) 在细胞间通讯和肿瘤进展中的作用。MML-1细胞释放各种亚型的EV,包括外泌体、微囊泡和凋亡体,每种EV都携带不同的RNA载体,如microRNA(miRNA)和其他非编码RNA。

利用 MML-1 细胞进行的研究表明,这些细胞释放的外泌体含有特定的 miRNA,如 miR-214-3p、miR-199a-3p 和 miR-155-5p,它们与黑色素瘤的发展和转移密切相关。与其他 EV 类型相比,这些 miRNA 在外泌体中富集,并与黑色素瘤相关的重要通路有关,如 MAPK 信号通路的调节和肿瘤微环境的相互作用。有趣的是,MML-1衍生外泌体的miRNA图谱与黑色素瘤临床样本的miRNA图谱比较显示出明显的重叠,这表明这种细胞模型在了解黑色素瘤进展方面具有临床意义。

除了miRNAs,MML-1细胞还释放其他非编码RNAs,如小核RNAs(snoRNAs)和线粒体相关转运RNAs(mt-RNAs),这些RNAs在EV亚型中分布不同。这些发现凸显了MML-1细胞系在研究黑色素瘤分子机制方面的实用性,特别是肿瘤细胞如何通过EV交流并影响其微环境。

Tissue
皮肤
Disease
黑色素瘤
Synonyms
  • MML1

02Classification

Organism
Human
Sex
Unspecified
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
Tumourigenic
是,在裸鼠身上

04Identifiers

Citation
MML-1(Cytion 目录编号 300288)
NCBI TaxID
9606
Cellosaurus
CVCL_6004

05Expression and susceptibility

Protein expression
P53 阳性
Mutational profile
V600E 型 BRAF 突变是通过 DNA 方法(测序、RT-PCR)和蛋白质方法(Western Blot)确定的。
Reverse transcriptase
阴性

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
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。
Seeding density
1 × 10⁴ 个细胞/平方厘米
Fluid renewal
每周 2 至 3 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
未说明