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DF-1
Tissue
胚胎
Synonyms
DF1, UMNSAH-DF-1, UMNSAH-DF 1, UMNSAH-DF1, UMNSAH/DF1, UMNSAH/DF#1, Douglas Foster-1, UMNSAH/DF-1

Documents

DF-1

Cell line · Product number 305016

DF-1 cells are a continuous cell line derived from chicken embryonic fibroblasts, specifically from East Lansing Line (ELL-0) chickens. The cell line is n...

US$650.00excl. tax and shipping
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Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

DF-1 細胞是一種源自雞胚胎成纖維細胞的連續細胞系,具體而言是源自東蘭辛系(ELL-0)雞。 該細胞系以其不含內源性禽白血病病毒而著稱,此病毒是許多其他雞細胞系中常見的污染物。此特性使 DF-1 細胞在病毒學研究中具有特別重要的價值,特別是在涉及感染禽類病毒(如禽流感病毒和馬雷克氏病病毒)的培養與基因操作研究方面。

除了應用於病毒學研究外,DF-1 細胞亦廣泛運用於細胞與分子生物學研究的各個領域。該細胞生長速率強勁且具有成纖維細胞般的形態,使其適合用於需要穩定禽類細胞環境的體外實驗。 這些細胞在基因表達研究中發揮了關鍵作用,特別是關於病毒及其他遺傳因子對禽類物種的影響。其遺傳穩定性及對轉染的敏感性,也使 DF-1 成為在受控環境下研究基因功能與調控的絕佳模型。

Tissue
胚胎
Synonyms
  • DF1
  • UMNSAH-DF-1
  • UMNSAH-DF 1
  • UMNSAH-DF1
  • UMNSAH/DF1
  • UMNSAH/DF#1
  • Douglas Foster-1
  • UMNSAH/DF-1

02Classification

Organism
Chicken
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
成纖維細胞
Tumourigenic
不

04Identifiers

Citation
DF-1(Cytion 型號 305016)
NCBI TaxID
9031
Cellosaurus
CVCL_0570

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% 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.

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
懷孕第10天