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SKM-1
Tissue
外周血
Disease
急性髓系白血病
Synonyms
SKM1

Documents

SKM-1

Cell line · Product number 305627

The SKM-1 cell line is a human leukemia model established from the peripheral blood of a patient with acute monoblastic leukemia that developed from myelo...

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Recommended (freshest lot)
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1

01General information

Description

SKM-1 細胞系是一種從一名患有由骨髓增生異常綜合症(MDS)演變而來的急性單核細胞性白血病患者的外周血中建立的人類白血病模型。 這些細胞呈現未成熟的形態特徵,例如高核質比及細小的嗜藍顆粒,使其成為研究白血病分子與細胞機制——尤其是骨髓增生異常症候群(MDS)轉變為急性骨髓性白血病(AML)的過程——的絕佳模型。

對 SKM-1 的遺傳分析揭示了重要的染色體異常,包括 del(9)(q13;q22) 和 der(17)t(17:?)(p13:?); 後者涉及 p53 基因,該基因在此細胞系中呈現過度表達並攜帶突變。這些發現突顯了 p53 在骨髓性惡性腫瘤的克隆演化與進展中的作用。 SKM-1 細胞的另一特徵在於其表達骨髓單核細胞標記物,包括 CD4、CD13 和 CD33,同時呈現丁酸酯酶活性陽性,這與其單核細胞譜系相符。

該細胞系廣泛應用於白血病發生機制、藥物抗性及白血病相關分子途徑的研究。 例如,SKM-1 提供了一個平台,用於探索 p53 功能失調及其他遺傳性病變對細胞增殖與治療反應的影響。它同時也作為研究骨髓增生異常綜合徵及繼發性急性骨髓性白血病(AML)新型治療策略的模型。

Tissue
外周血
Disease
急性髓系白血病
Synonyms
  • SKM1

02Classification

Organism
Human
Sex
Male
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
圓形細胞
Doubling time
48 小時

04Identifiers

Citation
SKM-1(Cytion 型號 305627)
NCBI TaxID
9606
Cellosaurus
CVCL_0098

05Expression and susceptibility

Antigen expression
CD3-、CD4+、CD13+、CD14-、CD15+、CD19-、CD33+、HLA-DR+;
Mutational profile
突變:ASXL1,單一突變,p.Tyr591Ter (c.1773C>A),純合子; 突變:BCORL1,簡單型,c.4619-1G>A,純合子,剪接接受位點突變;突變:EZH2,簡單型,p.Tyr646Cys (c.1937A>G),雜合子; 突變:KRAS,單一突變,p.Lys117Asn (c.351A>C),純合子;突變:TP53,單一突變,p.Arg248Gln (c.743G>A),純合子
Viruses
EBV 陰性、HBV 陰性、HCV 陰性、HIV-1 陰性、HIV-2 陰性、HTLV-1/2 陰性、MLV 陰性、SMRV 陰性

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 15% 的胎牛血清(FBS)
Dissociation reagent
無
Seeding density
0.3 至 1 × 10⁶ 個細胞/毫升
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
76年
Ethnicity
日文