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L929-GFP
Tissue
結締組織
Synonyms
L929/GL50

Documents

L929-GFP

Cell line · Product number 305956

L-929-GFP cells are a fluorescently labeled derivative of the murine L-929 fibroblast cell line, which was originally established from subcutaneous connec...

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01General information

Description

L-929-GFP 細胞是小鼠 L-929 成纖維細胞系的螢光標記衍生物,該細胞系最初是從成年小鼠的皮下結締組織中建立而來。 其親本 L-929 細胞系是生物醫學研究中最廣泛使用的鼠源成纖維細胞模型之一,其特徵為貼壁生長、紡錘形形態以及強大的增殖能力。 L-929 細胞廣泛應用於細胞毒性、發炎、細胞外基質生物學以及宿主與病原體相互作用的研究中,同時也常被用於生產及檢測腫瘤壞死因子-α(TNF-α)等細胞因子的生物測定。

L-929-GFP 細胞中綠色螢光蛋白(GFP)的穩定表達,使得研究人員能夠即時直接觀察並定量追蹤成纖維細胞的行為。這些細胞特別適用於螢光相關應用,包括遷移實驗、共培養實驗、組織工程研究以及活細胞成像。 L-929-GFP 細胞在保留親代成纖維細胞系核心生物特性的同時,亦能提升監測細胞定位、增殖以及在複雜細胞環境中相互作用的實用性。因此,它們可作為研究基質細胞動態、傷口癒合過程、生物材料相容性以及免疫介導的細胞毒性反應的多功能模型。

基因改造:透過複製無能的慢病毒轉導進行穩定改造,以表達 ZsGreen1 綠色螢光蛋白報告基因;在嘌呤酶篩選(1–5 µg/mL)下維持為多克隆細胞群。S1/BSL-1 防護等級。

Tissue
結締組織
Synonyms
  • L929/GL50

02Classification

Organism
Mouse
Sex
Male
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This cell line contains a stably integrated ZsGreen1 green fluorescent protein reporter introduced via replication-incompetent lentiviral transduction. The resulting polyclonal cell population was maintained under puromycin selection (1–5 µg/mL). S1 containment is required. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Cell type
成纖維細胞

04Identifiers

Citation
L929-GFP(Cytion 型號 305956)
NCBI TaxID
10090
Cellosaurus
CVCL_E2Z7

05Expression and susceptibility

Antigen expression
ZsGreen1(綠色螢光蛋白)

06Handling and culture

Culture medium
DMEM:Ham's F12(1:1),重量比:3.1 g/L 葡萄糖,重量比:2.5 mM L-谷氨酰胺,重量比:15 mM HEPES, w: 0.5 mM 丙酮酸鈉,w: 1.2 g/L NaHCO₃(Cytion 產品編號 820400a)
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
1 至 3 × 10⁴ 個細胞/cm²
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 200 x g for 5 minutes, carefully discard the supernatant containing freezing medium.

  7. Follow the procedure described under Post-Thaw Recovery

07Quality control and cryopreservation

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基加上 10% 的二甲基亞砜(DMSO),以確保解凍後的細胞存活率達到適當水準。
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
100 天