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DMS-114
Tissue
肺部
Disease
胸腔SMARCA4缺陷性未分化肿瘤
Synonyms
DMS-114, DMS114, Darmouth Medical School 114

Documents

DMS-114

Cell line · Product number 305364

DMS-114 is a human small-cell lung cancer (SCLC) cell line with unique features distinguishing it from other SCLC subtypes. Recent research has indicated ...

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01General information

Description

DMS-114 是一种人类小细胞肺癌(SCLC)细胞系,具有区别于其他 SCLC 亚型的独特特征。最近的研究表明,DMS-114(以前被归入YAP1表达的SCLC类别(SCLC-Y))在SMARCA4(SWI/SNF染色质重塑复合物的ATP酶亚基)中存在致病突变。这些突变与没有RB1突变有关,这与SCLC的典型突变情况相反,SCLC通常同时存在TP53和RB1改变。该细胞系的特征包括SMARCA4 mRNA和蛋白表达减少,因此被重新归类为SMARCA4缺陷未分化肿瘤(SMARCA4-UT),而非传统的SCLC。形态学评估显示,DMS-114 与胸部 SMARCA4-UT 更为接近,表现出较低的神经内分泌标志物表达和独特的免疫组化特征。

将DMS-114修订分类为SMARCA4缺陷型恶性肿瘤而非SCLC,对将其用作临床前模型具有重要意义。它是研究针对SMARCA4相关通路的治疗策略和研究侵袭性胸部癌症生物学(模拟SCLC)的重要资源。与传统的 SCLC 不同,包括 DMS-114 在内的 SMARCA4 缺失型肿瘤通常具有独特的基因表达谱,其特征是 YAP1 高表达、某些神经内分泌标志物缺失以及独特的分子脆弱性。这一观点强调了全面的分子和组织病理学分析对于准确的肿瘤分类和制定有效的治疗策略的必要性。

Tissue
肺部
Disease
胸腔SMARCA4缺陷性未分化肿瘤
Synonyms
  • DMS-114
  • DMS114
  • Darmouth Medical School 114

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Tumourigenic
是,在裸鼠身上

04Identifiers

Citation
DMS-114(Cytion 目录号 305364)
NCBI TaxID
9606
Cellosaurus
CVCL_1174

05Expression and susceptibility

Receptors expressed
表皮生长因子(EGF)、补体(CR3)
Protein expression
表达的基因:促肾上腺皮质激素(促肾上腺皮质激素,ACTH)、胰高血糖素、胰高血糖素、17 β-雌二醇、催产素-神经鞘磷脂(OT-NP)。
Antigen expression
亮氨酸 7 +、My23 +、CD11b +
Mutational profile
突变:突变:SMARCA4,p.Glu1310Ter (c.3928G>T),同卵双生;突变:PARD3B,Ex2-14del,同卵双生:PARD3B,Ex2-14del,同型;突变:TP53,p.Arg213Ter (c.3928G>T),同型:TP53,p.Arg213Ter (c.637C>T),同卵双生

06Handling and culture

Culture medium
Waymouth's MB 752/1 介质(我们不供应该产品,请考虑其他供应商。如果您需要进一步帮助,请告知我们)
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
Dissociation reagent
Accutase
Fluid renewal
每周 2 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
68岁
Ethnicity
高加索人