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CTX TNA2
Tissue
大脑,额叶

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CTX TNA2

Cell line · Product number 305333

CTX TNA2 is a rat astrocyte cell line that was established from primary cultures of cortical astrocytes. It is often used to study central nervous system ...

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01General information

Description

CTX TNA2 是一种大鼠星形胶质细胞系,由大脑皮层星形胶质细胞的原代培养物建立而成。它通常用于研究中枢神经系统(CNS)的功能,特别是与神经胶质生物学、神经毒性和神经保护有关的功能。星形胶质细胞在维持中枢神经系统稳态、为神经元提供结构和代谢支持以及介导对损伤和氧化应激的反应方面发挥着关键作用。

在多项研究中,CTX TNA2 细胞被用来模拟神经毒性,特别是谷氨酸等物质诱导的兴奋性毒性。例如,CTX TNA2 细胞暴露于谷氨酸时,会通过涉及活性氧(ROS)和糖原合酶激酶-3β(GSK-3β)途径的机制引发细胞凋亡和自噬。这些途径是细胞应对氧化应激和线粒体功能障碍的核心,尤其是在创伤性脑损伤或其他神经退行性疾病之后。此外,白藜芦醇和大麻二酚(CBD)等神经保护剂已被证明能减少 ROS 生成,抑制谷氨酸诱导的自噬和星形胶质细胞凋亡。

CTX TNA2 细胞系已被证明是一种宝贵的体外模型,不仅可用于研究星形胶质细胞的基本功能,还可用于研究抗氧化剂和神经保护化合物在中枢神经系统损伤和疾病条件下的治疗潜力。

Tissue
大脑,额叶

02Classification

Organism
Rat
Growth properties
Adherent
Biosafety level
2

03Characteristics

Morphology
成纤维细胞
Cell type
星形胶质细胞

04Identifiers

Citation
CTX TNA2(Cytion 产品编号 305333)
NCBI TaxID
10116
Cellosaurus
CVCL_3670

05Expression and susceptibility

Viruses
转化体: Simian virus 40 (SV40)

06Handling 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。
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

使用基于 PCR 的检测方法和基于发光的支原体检测方法排除支原体污染。

为确保没有细菌、真菌或酵母菌污染,每天都要对细胞培养物进行目视检查。

Freeze medium
作为冷冻保存培养基,我们使用 50% 基础培养基 + 40% FBS + 10% DMSO 或 CM-1(Cytion 目录号 800100),其中包括优化的渗透保护剂和代谢稳定剂,以促进恢复并减少冷冻引起的应激。
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
斯普拉格-道利
Donor age
1 天