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HEK293 EBNA 細胞
Tissue
胚胎腎臟
Synonyms
HEK293-EBNA, 293 c18, 293c18, HEK 293 c18, HEK-293 c18, HEK293-EBNA1, HEK-293-EBNA, HEK 293-EBNA, HEK 293 EBNA, HEK293EBNA, 293 EBNA, 293-EBNA1, 293-EBNA, 293/EBNA, 293EBNA, EBNA-293, EBNA293, HEK293E, HEK/EBNA, HEK-EBNA, HEK.EBNA, 293/EBNA-1, 298E

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HEK293 EBNA 細胞

Cell line · Product number 300264

The HEK293 EBNA cell line is a derivative of the original HEK293 line, which itself was derived from human embryonic kidney cells grown in tissue culture....

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  • CoA
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01General information

Description

HEK293 EBNA 細胞系是原始 HEK293 細胞系的衍生物,而原始 HEK293 細胞系本身則源自於組織培養中生長的人胚胎腎細胞。此特定亞系經過基因工程改造,可穩定表達愛潑斯坦-巴爾病毒核抗原-1(EBNA-1)。 EBNA-1 的表達使攜帶 EBV 複製起始點的質體能夠進行環狀質體複製,因此 HEK293 EBNA 細胞對於重組蛋白的生產以及涉及環狀質體載體的基因表達研究具有特別重要的價值。

HEK293 EBNA 細胞保留了母系 HEK293 細胞的許多特性,包括對細胞培養塑膠的黏附性,以及在標準哺乳動物細胞培養基中強勁的生長能力。 EBNA-1 的加入擴展了其在研究與生物技術應用中的用途,因為它增強了細胞傳播攜帶 EBV 質體複製起始點之質體的能力。此特性對於生產穩定且高產量的重組蛋白至關重要,這對於研究目的及工業規模生產皆不可或缺。

Tissue
胚胎腎臟
Synonyms
  • HEK293-EBNA
  • 293 c18
  • 293c18
  • HEK 293 c18
  • HEK-293 c18
  • HEK293-EBNA1
  • HEK-293-EBNA
  • HEK 293-EBNA
  • HEK 293 EBNA
  • HEK293EBNA
  • 293 EBNA
  • 293-EBNA1
  • 293-EBNA
  • 293/EBNA
  • 293EBNA
  • EBNA-293
  • EBNA293
  • HEK293E
  • HEK/EBNA
  • HEK-EBNA
  • HEK.EBNA
  • 293/EBNA-1
  • 298E

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This HEK293 EBNA cell line contains EBV nuclear antigen (EBNA) sequences enabling episomal replication of EBV-derived plasmids, without releasing infectious virus particles. The modification is stably present in embryonic kidney-derived cells. This classification applies only within Germany and may differ elsewhere.
Biosafety level
2

03Characteristics

Morphology
上皮性

04Identifiers

Citation
HEK293 EBNA(Cytion 型號 300264)
NCBI TaxID
9606
Cellosaurus
CVCL_6974

05Expression and susceptibility

Antigen expression
EBNA1
Viruses
腺病毒 5 型(轉化株)、EBV(表達 EBNA1)

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)
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。
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
胎兒