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M-MSV-Balb/3T3
Tissue
胚胎期的
Synonyms
M-MSV-BALB/3T3

Documents

M-MSV-Balb/3T3

Cell line · Product number 400458

The M-MSV-Balb/3T3 cell line is a mouse fibroblast cell line derived from BALB/c mice. These cells are widely used in research due to their stable growth ...

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01General information

Description

M-MSV-Balb/3T3 細胞系是一種源自 BALB/c 小鼠的小鼠成纖維細胞系。由於其生長特性穩定且遺傳背景已充分闡明,這些細胞在研究中被廣泛應用。 它們源自 3T3 細胞系,該細胞系是從小鼠胚胎組織建立的標準成纖維細胞系。 M-MSV-Balb/3T3 細胞經由莫洛尼鼠肉瘤病毒(M-MSV)轉化,使其成為研究病毒致癌作用、訊號傳導途徑,以及細胞轉化與腫瘤形成背後分子機制的重要工具。

M-MSV 的轉化賦予這些細胞一系列致癌特性,包括增殖率增加、接觸抑制消失,以及在軟瓊脂中形成集落的能力,這些都是惡性轉化的標誌。 這些特徵使 M-MSV-Balb/3T3 細胞特別適用於癌症生物學的體外研究,包括致癌基因與腫瘤抑制基因的鑑定,以及潛在抗癌療法的測試。此外,將其應用於轉染實驗,則能藉助轉化表型來探索基因的功能與調控機制。

Tissue
胚胎期的
Synonyms
  • M-MSV-BALB/3T3

02Classification

Organism
Mouse
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This murine fibroblast cell line (M-MSV-Balb/3T3) contains Moloney murine sarcoma virus (MOMSV) sequences introduced via transfection, without production of infectious virus, supporting transformed growth. The viral sequences are stably present in Balb/3T3-derived cells. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
成纖維細胞樣
Cell type
成纖維細胞
Tumourigenic
是的

04Identifiers

Citation
M-MSV-Balb/3T3(Cytion 型號 400458)
NCBI TaxID
10090
Cellosaurus
CVCL_5793

05Expression and susceptibility

Antigen expression
H-2d
Viruses
鼠痘病毒(Ectromelia virus):陰性。
Reverse transcriptase
否

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。
Seeding density
0.7 至 1 × 10⁶ 個細胞/cm²
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

Breed / subspecies
BALB/c
Donor age
胚胎,妊娠第14至17天