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SNU-668
Tissue
胃部
Disease
印戒細胞腺癌
Metastatic site
腹水
Synonyms
SNU668, NCI-SNU-668

Documents

SNU-668

Cell line · Product number 305635

The SNU-668 cell line is a human gastric carcinoma model originally derived from the poorly differentiated adenocarcinoma tissue of the stomach. This cell...

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01General information

Description

SNU-668 細胞系是一種源自胃部低分化腺癌組織的人類胃癌模型。該細胞系已廣泛應用於胃癌病理機制、訊號傳導機制及藥物反應性的研究。 基因組特徵分析顯示,SNU-668 攜帶了在彌漫型胃癌中常見的高頻突變與染色體畸變。值得注意的是,該細胞系在關鍵致癌路徑上呈現變異,例如 TP53 突變及 PI3K/AKT 訊號傳導路徑的可能活化,這些變化可能促使其具備致瘤性及抗治療特性。

SNU-668 亦已被納入「癌症細胞系百科全書」(CCLE)等綜合性多組學分析計畫,其中針對其轉錄組、基因組、甲基化及蛋白質組特徵進行了評估。該細胞系展現出獨特的 DNA 甲基化模式與整體組蛋白修飾譜,這些特徵可能在基因表達的表觀遺傳調控中發揮作用。 此外,依賴性圖譜分析揭示了特定細胞譜系的脆弱性,這些發現可為彌漫性胃癌的靶向治療策略提供依據。作為源自亞洲族群背景的胃癌模型,SNU-668 持續在分子導向療法的臨床前評估中扮演重要工具的角色。

Tissue
胃部
Disease
印戒細胞腺癌
Metastatic site
腹水
Synonyms
  • SNU668
  • NCI-SNU-668

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮樣
Cell type
上皮性
Doubling time
26 小時

04Identifiers

Citation
SNU-668(Cytion 型號 305635)
NCBI TaxID
9606
Cellosaurus
CVCL_5081

05Expression and susceptibility

Mutational profile
突變:KRAS,簡單型,p.Gln61Lys (c.181C>A),純合子;突變:TP53,簡單型,p.Ser215Asn (c.644G>A),純合子

06Handling and culture

Culture medium
RPMI 1640,含 2.0 mM 穩定谷氨醯胺,含 2.0 g/L NaHCO₃(Cytion 產品編號 820700a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 經熱滅活的胎牛血清
Dissociation reagent
Accutase
Subculturing
移除培養基,加入新鮮的 0.25% 胰蛋白酶與 0.02% EDTA 溶液,將培養瓶置於 37''''C 靜置 3 至 5 分鐘,加入培養基並收集細胞,將培養基轉移至 15 毫升試管中,離心後吸除培養基,用培養基重新懸浮細胞沉澱,並分裝回培養瓶中
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
63年
Ethnicity
韓文