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U2OS-CRISPR-NUP96-mEGFP 細胞
Tissue
骨頭
Disease
骨肉瘤

Documents

U2OS-CRISPR-NUP96-mEGFP 細胞

Cell line · Product number 300174

The U-2 OS-CRISPR-NUP96-mEGFP is a genetically modified cell line derived from the human osteosarcoma U-2 OS parent line. This cell line incorporates a ta...

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01General information

Description

U-2 OS-CRISPR-NUP96-mEGFP 是一種源自人類骨肉瘤 U-2 OS 親本細胞系的基因改造細胞系。 此細胞系透過 CRISPR-Cas9 基因編輯技術,將單體增強型綠色螢光蛋白(mEGFP)標記靶向插入至 NUP96 基因位點。 NUP96 作為核孔複合體的一部分,對核轉運至關重要;其與 mEGFP 的融合,使得在螢光顯微鏡下能夠即時觀察核孔的動態變化,從而為核轉運機制及核-細胞質轉運提供寶貴的見解。

此特定克隆(編號 195)因其能穩定表達 NUP96-mEGFP 融合蛋白而被選中,並保留了 U-2 OS 細胞系的典型特徵,包括強健的細胞骨架結構,這對於與癌細胞遷移及轉移相關的研究至關重要。 CRISPR 技術的應用確保了精確的基因編輯,將可能影響實驗結果完整性的脫靶效應降至最低。 這使得 U-2 OS-CRISPR-NUP96-mEGFP 第 195 號克隆特別適用於高解析度成像技術及詳細的細胞結構研究,有助於推動細胞生物學、癌症研究及核轉運現象等領域的先進研究。

Tissue
骨頭
Disease
骨肉瘤

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This human osteosarcoma cell line (U2OS-CRISPR-NUP96-mEGFP, clone 195) contains a CRISPR-engineered NUP96-mEGFP fusion introduced via lentiviral delivery, enabling fluorescent tracking of nuclear pore complexes. The modification is stably integrated. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮樣

04Identifiers

Citation
U-2 OS-CRISPR-NUP96-mEGFP 第 195 號克隆(Cytion 型號 300174)
NCBI TaxID
9606
Cellosaurus
CVCL_B7FJ
Depositor
艾倫伯格實驗室(EMBL)

05Expression and susceptibility

Protein expression
MEGFP(核孔複合體蛋白 96,標記有 mEGFP)

06Handling and culture

Culture medium
麥考伊 5a 培養基,含:3.0 g/L 葡萄糖,含:穩定型谷氨酰胺,含:2.0 mM 丙酮酸鈉,含:2.2 g/L NaHCO₃(Cytion 產品編號 820200a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% FBS 及 1% NEAA
Dissociation reagent
Accutase
Subculturing
從貼壁細胞中移除舊培養基,並用不含鈣和鎂的PBS洗滌細胞。T25培養瓶使用3-5毫升PBS,T75培養瓶則使用5-10毫升。 接著,用 Accutase 完全覆蓋細胞,T25 培養瓶使用 1–2 毫升,T75 培養瓶則使用 2.5 毫升。將細胞於室溫下孵育 8–10 分鐘,使其脫附。 孵育後,將細胞與 10 毫升培養基輕柔混合以使其重新懸浮,然後以 300xg 離心 3 分鐘。棄去上清液,將細胞重新懸浮於新鮮培養基中,並轉移至已預先加入新鮮培養基的新培養瓶中。
Seeding density
2 至 3 × 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
15年
Ethnicity
高加索人