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PA317
Tissue
胚胎
Synonyms
pA317

Documents

PA317

Cell line · Product number 305617

US$540.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

PA317 是一種經基因工程改造、可穩定表達雙嗜性逆轉錄病毒包裝系統的小鼠成纖維細胞系。該細胞系廣泛應用於基因治療及分子生物學研究,用以生產能夠轉導多種哺乳動物細胞的重組逆轉錄病毒。 PA317 源自 NIH/3T3 成纖維細胞,在保留成纖維細胞形態的同時,亦具備生產高滴度逆轉錄病毒的能力。

PA317 細胞的設計旨在以轉錄方式提供必要的逆轉錄病毒組分,包括 gag、pol 和 env 基因,同時不含有複製competent的病毒序列。此設計可防止形成具有複製competent能力的逆轉錄病毒,從而確保實驗與治療情境中的安全性。 PA317 細胞所表達的兩宿主性包膜蛋白,使所產生的逆轉錄病毒能夠感染不同物種的各種細胞類型,因此該細胞系對於需要高效基因轉移的應用尤為寶貴。

此細胞系常被用於生產逆轉錄病毒載體,以進行臨床前研究中的基因遞送,包括癌症研究、基因工程及再生醫學。它也是驗證逆轉錄病毒載體構建體及優化病毒生產流程的首選。 PA317 為逆轉錄病毒介導的基因轉移提供了可靠的平台,有助於推動基因治療與功能基因組學研究的進展。

Tissue
胚胎
Applications
3D 細胞培養
Synonyms
  • pA317

02Classification

Organism
Mouse
Sex
Male
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This PA317 retroviral packaging line contains MoMLV gag/pol/env components enabling production of replication-defective retroviral particles. This classification applies only within Germany and may differ elsewhere.
Biosafety level
2

03Characteristics

Morphology
成纖維細胞樣
Cell type
成纖維細胞

04Identifiers

Citation
PA317(Cytion 型號 305617)
NCBI TaxID
10090
Cellosaurus
CVCL_3920

05Expression and susceptibility

Viruses
莫洛尼小鼠白血病病毒(MoMLV)

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培養瓶需使用3-5毫升PBS,T75培養瓶則需使用5-10毫升。 接著,用 TrypLE Express 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,使其脫落。 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

Breed / subspecies
NIH 瑞士

10Product details

Composition table