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GL-261-Luc
Tissue
大脑
Disease
胶质母细胞瘤

Documents

GL-261-Luc

Cell line · Product number 305662

GL261-Luc cells are a bioluminescent derivative of the murine GL261 glioma cell line engineered to stably express a luciferase reporter gene. Following ad...

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01General information

Description

GL261-Luc细胞是小鼠GL261胶质瘤细胞系的生物发光衍生物,经过基因工程改造可稳定表达荧光素酶报告基因。在添加荧光素底物后,这些细胞会发出可量化的发光信号,其强度与存活肿瘤细胞数量成正比,从而能够对肿瘤生长和治疗反应进行灵敏且无创的监测。 GL261-Luc细胞保留了亲本GL261胶质瘤模型的许多生物学和免疫原性特征,包括侵袭性生长行为以及与同基因免疫功能正常小鼠模型的兼容性。由于亲本GL261细胞系源自小鼠胶质瘤,GL261-Luc细胞对于在完整免疫系统背景下研究胶质母细胞瘤生物学具有特别重要的价值。

GL261-Luc细胞广泛应用于原位颅内及皮下胶质瘤模型,用于纵向体内生物发光成像。其稳定的荧光素酶表达使研究人员能够实时评估肿瘤的建立、进展、侵袭、复发及治疗反应,而无需在多个时间点进行侵入性操作。 这些细胞广泛应用于临床前神经肿瘤学研究,用于评估化疗药物、放射治疗、免疫检查点抑制、CAR-T细胞疗法、癌症疫苗、溶瘤病毒以及基于纳米粒子的药物递送系统。在体外,GL261-Luc细胞也适用于基于生物发光的细胞活力检测、细胞毒性测试、迁移和侵袭研究,以及高通量治疗筛选工作流程。

作为同基因型胶质瘤模型,GL261-Luc细胞对于研究肿瘤-免疫相互作用、神经炎症以及胶质母细胞瘤微环境中的免疫逃逸机制尤为重要。然而,不同独立构建的变体在荧光素酶载体系统、启动子配置及筛选策略上可能存在差异,这可能会影响信号强度和报告基因的长期稳定性。 因此,研究人员在将其用于定量成像研究或治疗评估之前,应在具体实验条件下对荧光素酶活性、增殖动力学及免疫学特征进行验证。

Tissue
大脑
Disease
胶质母细胞瘤

02Classification

Organism
Mouse
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This cell line contains a stably integrated firefly luciferase reporter cassette (Luc2, codon-optimized) 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

03Identifiers

Citation
GL-261-Luc(Cytion 产品编号 305662)
NCBI TaxID
10090
Cellosaurus
CVCL_C9CB

04Expression and susceptibility

Antigen expression
Luc2(萤火虫,密码子优化版)

05Handling and culture

Culture medium
DMEM,w:4.5 克/升葡萄糖,w:4 毫摩尔 L-谷氨酰胺,w:3.7 克/升 NaHCO3,w:1.0 毫摩尔丙酮酸钠(Cytion 编号 820300a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
Dissociation reagent
Accutase
Subculturing
去除粘附细胞上的旧培养基,用不含钙和镁的 PBS 冲洗。T25 烧瓶用 3-5 毫升 PBS,T75 烧瓶用 5-10 毫升。然后用 Accutase 完全覆盖细胞,T25 烧瓶用 1-2 毫升,T75 烧瓶用 2.5 毫升。让细胞在室温下孵育 8-10 分钟,使其分离。孵育后,用 10 毫升培养基轻轻混合细胞使其重悬,然后用 300xg 离心 3 分钟。弃去上清液,用新鲜培养基重悬细胞,并将其转移到已装有新鲜培养基的新烧瓶中。
Seeding density
1至3×10⁴个细胞/平方厘米
Fluid renewal
每周 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 200 x g for 5 minutes, carefully discard the supernatant containing freezing medium.

  7. Follow the procedure described under Post-Thaw Recovery

06Quality control and cryopreservation

Freeze medium
作为冷冻保存培养基,我们使用完全生长培养基+10% DMSO,以获得足够的解冻后存活率。
Storage conditions

如需长期保存,可将样品瓶放入气相液氮中,温度约为 -150 至 -196 ℃。在-80 °C下保存只能作为转入液氮前的短暂过渡。

Shipping conditions

冷冻保存的细胞系用干冰装运,并用经过验证的隔热包装和足够的制冷剂在整个运输过程中保持约 -78 °C 的温度。收到货后,应立即检查容器,并立即将小瓶转移到适当的储藏室。

07Donor

Breed / subspecies
C57BL/6