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AAV-293
Tissue
胚胎腎臟
Synonyms
AAV293

Documents

AAV-293

Cell line · Product number 305127

The AAV-293 cell line is a permanent line established from primary embryonic human kidney transformed with human adenovirus type 5 DNA. The genes encoded ...

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01General information

Description

AAV-293 細胞系是一種由經人類第 5 型腺病毒 DNA 轉化的人類胚胎腎原代細胞所建立的永久性細胞系。 這些細胞會表達由腺病毒 E1 區域所編碼的基因(E1a 和 E1b),並參與病毒啟動子的跨激活作用,從而使這些細胞能夠產生高水平的蛋白質。

AAV-293 源自親本 293 細胞系,經過克隆和多輪測試,AAV-293 因能在無輔助病毒系統中產生高水平的 AAV 而被特別選中。 與常規 293 細胞相比,它具有多項優勢:更大的細胞表面積帶來更高的轉染效率和更好的 AAV 產率。

其優勢在於細胞形態扁平、能牢固附著於培養板,且非常適合大規模培養與 AAV 生產。腺相關病毒(AAV)屬於小病毒科(Parvoviridae),該病毒群是單股、無包膜 DNA 病毒中體積最小的病毒之一。

迄今為止,已報告九種不同的 AAV 血清型。AAV 既可感染分裂中的細胞,也可感染非分裂中的細胞,並能在人類宿主細胞中維持,從而具備長期基因轉移的潛力。 重組 AAV-2 是基因遞送中最常用的血清型,可透過輔助病毒或 AAV-293 細胞以高滴度進行生產。

Tissue
胚胎腎臟
Synonyms
  • AAV293

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This HEK293-derived AAV-293 line contains clonal modifications supporting AAV vector production. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮性

04Identifiers

Citation
AAV-293(Cytion 型號 305127)
NCBI TaxID
9606
Cellosaurus
CVCL_6871

05Handling 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% FBS 及 0.1 mM 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 5 分鐘以使其脫落。 孵育後,將細胞與 10 毫升培養基輕輕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,並轉移至已裝有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.

06Quality 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。

07Donor

Donor age
胎兒