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SNB-19
Tissue
大腦,頂葉
Disease
星形細胞瘤
Synonyms
SNB.19, SNB19, Surgical Neurology Branch-19

Documents

SNB-19

Cell line · Product number 305492

The SNB-19 cell line is a human glioblastoma multiforme (GBM) model derived from a high-grade glioma tumor. It is one of the widely studied glioma cell li...

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01General information

Description

SNB-19 細胞系是一種源自高階別膠質瘤的人類多形性膠質母細胞瘤(GBM)模型。它是廣受研究的膠質瘤細胞系之一,常用於探索侵襲性腦腫瘤(尤其是膠質母細胞瘤)的生物學特性。 SNB-19 細胞呈現上皮細胞形態,在培養中呈黏附生長。該細胞系已被廣泛應用於腫瘤增殖、侵襲及治療反應的研究,特別是針對膠質母細胞瘤對傳統治療產生抗藥性的機制進行探究。

對 SNB-19 細胞進行的基因組分析揭示了與 GBM 常見相關的重要遺傳變異,包括腫瘤抑制基因及致癌基因(如 TP53、EGFR 和 PTEN)的突變。這些細胞亦呈現染色體異常,包括致癌驅動基因的擴增以及腫瘤抑制基因座的缺失。 SNB-19 的遺傳特徵為研究驅動膠質母細胞瘤病理發生的分子途徑,以及識別潛在治療靶點,提供了重要的模型。

SNB-19 已被廣泛用於評估新型化療藥物及標靶藥物的療效。由於該細胞系能有效在體外模擬 GBM 的高度侵襲性,因此亦被應用於研究膠質母細胞瘤侵襲性與遷移特性的實驗中。 此外,對 SNB-19 進行的蛋白質體學分析,有助於理解膠質母細胞瘤在蛋白質層面的調控失衡及其與基因變異的關聯性。這些特性使 SNB-19 成為專注於膠質母細胞瘤之轉譯研究中不可或缺的工具。

Tissue
大腦,頂葉
Disease
星形細胞瘤
Synonyms
  • SNB.19
  • SNB19
  • Surgical Neurology Branch-19

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
成纖維細胞樣
Cell type
成纖維細胞
Doubling time
24小時

04Identifiers

Citation
SNB-19(Cytion 型號 305492)
NCBI TaxID
9606
Cellosaurus
CVCL_0535

05Expression and susceptibility

Mutational profile
突變:PTEN,簡單型,p.Glu242Valfs*15 (c.723_724dupTG),純合子;突變: TERT,簡單突變,c.1-124C>T (c.228C>T) (C228T),未指定;突變:TP53,簡單突變,p.Arg273His (c.818G>A),純合子

06Handling and culture

Culture medium
DMEM,含 4.5 g/L 葡萄糖、4 mM L-谷氨醯胺、3.7 g/L NaHCO₃ 及 1.0 mM 丙酮酸鈉(Cytion 產品編號 820300a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 的胎牛血清(FBS)
Seeding density
1–4 × 10⁴ 個細胞/cm²
Fluid renewal
每週 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

透過基於 PCR 的檢測及基於發光原理的支原體檢測方法,排除支原體污染的可能性。

為確保無細菌、真菌或酵母菌污染,每日均會對細胞培養物進行目視檢查。

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基(含 FBS)+ 10% DMSO 以確保解凍後的存活率,或使用 CM-1 (Cytion 型號 800100),該培養基含有經優化的滲透保護劑和代謝穩定劑,可提升細胞恢復率並減輕冷凍誘導的壓力。
Storage conditions

若需長期保存,請將試管置於溫度約為 −150 至 −196 °C 的氣相液氮中。僅在轉移至液氮之前,可將試管暫時存放於 −80 °C 環境中,作為短期過渡步驟。

Shipping conditions

冷凍保存的細胞系會以乾冰冷藏,並裝於經驗證的隔熱包裝中,包裝內含有足夠的冷媒,以確保在運輸過程中溫度維持在約 −78 °C。收到貨物後,請立即檢查容器,並盡快將試管轉移至適當的儲存場所。

08Donor

Donor age
75年
Ethnicity
高加索人