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PSN-1
Tissue
胰臟
Disease
胰腺腺癌
Synonyms
PSN1

Documents

PSN-1

Cell line · Product number 305618

The PSN-1 cell line is a human pancreatic adenocarcinoma model established from a primary pancreatic tumor. It is particularly notable for harboring ampli...

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01Description

02General information

Description

PSN-1 細胞系是一種由原發性胰臟腫瘤建立的人類胰腺腺癌模型。 其特別值得注意之處在於同時攜帶 c-myc 致癌基因的擴增,以及 c-Ki-ras 基因在第 12 密碼子處的點突變。此突變將甘胺酸替換為精胺酸(GGT 變為 CGT),導致 c-Ki-ras 呈現具轉化潛能的活化形式。 PSN-1 保留了與原始腫瘤組織相同的分子特徵,包括 c-myc 基因 50 倍的擴增,以及突變型 c-Ki-ras 基因 3 至 6 倍的擴增。這些致癌基因的擴增伴隨著兩者 mRNA 表達量的顯著增加,表明它們在腫瘤進展中起著關鍵作用。

PSN-1 是透過非傳統過程衍生的:將未添加冷凍保護劑、在 -80°C 下儲存 1.5 年的冷凍腫瘤組織,成功移植至裸鼠體內。 從由此產生的異種移植瘤中,建立了 PSN-1 細胞系,並在體外證實其具有穩定的致癌基因擴增,與原始腫瘤及其轉移性淋巴結中所發現的結果一致。 該細胞系展現出異質性的生長特徵,細胞既能以單層形式強烈附著,也能在懸浮狀態下生長。這種雙重行為反映出該細胞群具有多樣性,能夠適應不同的培養條件。

Tissue
胰臟
Disease
胰腺腺癌
Applications
3D 細胞培養
Synonyms
  • PSN1

03Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

04Characteristics

Morphology
上皮樣
Cell type
上皮細胞
Doubling time
21 小時

05Identifiers

Citation
PSN-1(Cytion 型號 305618)
NCBI TaxID
9606
Cellosaurus
CVCL_1644

06Expression and susceptibility

Mutational profile
基因缺失:CDKN2A,純合子;基因缺失:SMAD4,純合子;突變:KRAS,簡單突變,p.Gly12Arg (c.34G>C),雜合子; 突變:TP53,單一突變,p.Lys132Gln (c.394A>C),純合子

07Handling 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
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.

08Quality 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。

09Donor

Donor age
未指定
Ethnicity
東亞