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HEK293T/17
Tissue
胚胎腎臟
Synonyms
HEK293T/17, HEK-293T/17, HEK 293T/17

Documents

HEK293T/17

Cell line · Product number 305117

The 293T/17 cell line is an immortalized variant of the HEK293 line, derived from human embryonic kidney cells and extensively utilized in research, parti...

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01General information

Description

293T/17 細胞系是 HEK293 細胞系的永生化變體,源自人類胚胎腎細胞,廣泛應用於研究領域,特別是在逆轉錄病毒和慢病毒載體的研究與生產方面。 該細胞系經改造後可表達 SV40 大 T 抗原,從而增強其在病毒載體生產中的應用價值。 SV40 大 T 抗原的表達是這類細胞的一大關鍵特徵,使其能夠複製含有 SV40 複製起點的質體,從而顯著提高瞬時轉染程序中質體 DNA 的產量。此特性對於病毒載體的生產尤為有益。

293T/17 細胞在逆轉錄病毒和慢病毒等病毒載體的生產中至關重要。由於其能夠放大轉染的質體,並支持病毒的組裝與釋放,因此能高效地產生病毒顆粒。這使它們成為基因治療研究中不可或缺的工具,在該領域中,這些載體被用來將遺傳物質遞送至宿主細胞。 該細胞展現出極高的轉染效率,這對於載體構建過程中外源DNA的成功導入與表達至關重要。這種高效率使研究人員能夠有效進行基因功能研究及重組蛋白質的製備。

293T/17 細胞系的強大功能使其在基礎科學研究與治療應用方面皆具有無可取代的價值。它在分子生物學和基因工程領域被廣泛應用於蛋白質表達、基因功能分析以及新型基因療法開發。 該細胞系在生產病毒載體方面的效率,有助於進行需要傳遞遺傳物質的實驗,使其成為病毒學領域的基石。293T/17 細胞系在深化我們對基因功能的理解以及開發治療干預措施方面,持續發揮著關鍵作用。

Tissue
胚胎腎臟
Applications
該細胞系是進行轉染、高通量篩選、毒理學研究及疫苗開發的最佳選擇。
Synonyms
  • HEK293T/17
  • HEK-293T/17
  • HEK 293T/17

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This HEK293T/17 cell line contains SV40, enhancing plasmid replication and packaging efficiency. The insert is stably present in transformed embryonic kidney cells. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮性

04Identifiers

Citation
HEK293T/17(Cytion 型號 305117)
NCBI TaxID
9606
Cellosaurus
CVCL_1926

05Expression and susceptibility

Antigen expression
SV40 T抗原
Viruses
SV40(表達 SV40 T 抗原)

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。
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
胎兒