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CT26-Luc
Tissue
结肠
Disease
结肠腺癌
Synonyms
Luciferase Reporter CT26 Cell Line

Documents

CT26-Luc

Cell line · Product number 305646

CT26-Luc is a bioluminescent derivative of the murine CT26 colon adenocarcinoma cell line, engineered to stably express a firefly luciferase reporter gene...

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01General information

Description

CT26-Luc 是小鼠 CT26 结肠腺癌细胞系的生物发光衍生物,经过基因工程改造,可稳定表达萤火虫荧光素酶报告基因。 亲本 CT26 细胞系是从 BALB/c 小鼠中由 N-亚硝基-N-甲基脲诱导的未分化结肠癌建立的,是临床前免疫肿瘤学研究中最广泛使用的同基因肿瘤模型之一。 CT26 细胞表现出侵袭性生长特征,包括在免疫功能正常的 BALB/c 宿主中快速增殖和较高的致瘤潜力,这与人类结直肠癌的生物学特征非常相似。

CT26-Luc 中稳定整合了荧光素酶报告基因,可对活体动物的肿瘤负荷进行灵敏、定量的生物发光成像 (BLI)。 在给药荧光素底物后,发出的光信号与代谢活跃的肿瘤细胞数量相关,从而有助于对肿瘤生长、转移扩散和治疗反应进行无创的纵向监测。 这使得 CT26-Luc 在免疫功能正常的环境中评估检查点抑制剂、治疗性抗体、溶瘤病毒和联合治疗策略的临床前研究中具有特别重要的价值。

CT26-Luc 保留了亲本 CT26 系的关键生物学特征,包括其对免疫介导杀伤的敏感性,以及在肿瘤免疫学、异体细胞疗法和癌症疫苗研发研究中的成熟应用。 萤火虫蛋白报告基因的加入显著提高了实验通量和灵敏度,使研究人员能够在治疗过程中实时评估治疗疗效和肿瘤动力学,而无需在各个时间点处死实验动物。

Tissue
结肠
Disease
结肠腺癌
Synonyms
  • Luciferase Reporter CT26 Cell Line

02Classification

Organism
Mouse
Sex
Female
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

03Characteristics

Morphology
成纤维细胞
Doubling time
24-48小时

04Identifiers

Citation
CT26-Luc(Cytion 产品编号 305646)
NCBI TaxID
10090
Cellosaurus
CVCL_E3H3

05Expression and susceptibility

Antigen expression
Luc2(萤火虫,密码子优化版)
Mutational profile
突变:p.Gly12Asp,纯合子

06Handling and culture

Culture medium
RPMI 1640,w:2.0 mM 稳定谷氨酰胺,w:2.0 g/L NaHCO3(Cytion 文章编号 820700a)。
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。
Split ratio
1 至 3
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

07Quality 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。

08Donor

Breed / subspecies
BALB/c
Donor age
年龄不详