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HEK293-F 細胞
Tissue
腎臟
Synonyms
HEK-293-F, HEK 293-F, HEK-293F, HEK293F, 293-F, 293 F, 293F

Documents

HEK293-F 細胞

Cell line · Product number 300260

HEK293-F cells are a fast-growing, highly transfectable subline derived from the human embryonic kidney 293 (HEK293) cell line. The 'F' designation indica...

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01General information

Description

HEK293-F 細胞是源自人類胚胎腎臟 293(HEK293)細胞系的一種生長迅速、轉染效率極高的亞系。標記中的「F」表示這些細胞已適應懸浮培養環境,因此特別適用於大規模蛋白質生產。 該細胞可在多種無血清培養基中生長,有利於在生物技術及製藥應用中實現可擴展的製程。HEK293-F 細胞保留了母系 HEK293 細胞系的上皮樣形態,並能在懸浮狀態下維持生長,無需附著於固體基質。

這些細胞在表達重組蛋白方面效率極高,並廣泛應用於基因治療用病毒載體的生產,包括腺病毒、慢病毒及逆轉錄病毒載體。 其強勁的懸浮生長能力與易於轉染的特性,使其成為暫時性轉染方案的理想選擇,在轉染後數日內即可產生高產量的蛋白質。此特性對於研究與工業環境中的快速生產週期至關重要。 HEK293-F 細胞對各種生長條件的適應性及其高密度培養能力,進一步提升了其在生物製程環境中的實用性。

Tissue
腎臟
Applications
轉染宿主
Synonyms
  • HEK-293-F
  • HEK 293-F
  • HEK-293F
  • HEK293F
  • 293-F
  • 293 F
  • 293F

02Classification

Organism
Human
Sex
Female
Growth properties
Suspension
GMO status
GMO-S1
GMO status details
GMO-S1: This HEK293-F cell line contains SV40, enabling high transfection efficiency and robust growth in suspension culture. The modification is stably present in embryonic kidney cells. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮樣
Tumourigenic
在裸鼠身上
Doubling time
30 小時

04Identifiers

Citation
HEK293-F(Cytion 型號 300260)
NCBI TaxID
9606
Cellosaurus
CVCL_6642

05Expression and susceptibility

Receptors expressed
維特羅內克汀
Protein expression
CEA 陰性,p53 陽性
Viruses
經腺病毒 5 型 DNA 轉化 腺病毒 5 型 DNA

06Handling and culture

Culture medium
CD293(Thermo)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

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
1 × 10⁴ 個細胞/cm² 約需 4 天即可形成密合的細胞層
Fluid renewal
每週 2 次
Post-thaw recovery
解凍後,將細胞以 5 × 10⁴ 個細胞/cm² 的密度接種於培養皿中,並讓細胞從冷凍過程中恢復,並附著至少 24 小時。
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