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SVG p12
Tissue
胎儿大脑
Synonyms
SVGp12, SVG(P12)

Documents

SVG p12

Cell line · Product number 305878

SVG p12 is a human fetal glial cell line originally derived from fetal brain tissue and immortalized via transformation with SV40 large T antigen. It has ...

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01General information

Description

SVG p12是一种人胎胶质细胞系,最初源自胎儿脑组织,并通过SV40大T抗原转化实现永生化。由于其胶质细胞起源及对病毒感染的高易感性,该细胞系已被广泛用作研究神经嗜性多瘤病毒(特别是JC多瘤病毒)的模型。 该细胞系保留星形胶质细胞谱系特征,能支持JCPyV的有效感染与增殖,成为研究胶质细胞中病毒趋向性、复制及致病机制的标准体外系统。

然而后续分析发现,SVG p12细胞在存入细胞库后遭到了BK多瘤病毒(BKPyV)的污染。 从某些培养库获取的SVG p12细胞系中检测到BKPyV DNA及传染性病毒,引发了对这些细胞衍生实验数据完整性的担忧。该污染现象并非所有SVG衍生的细胞系均存在——例如SVG-A等克隆系经检测未携带BKPyV,表明污染源于细胞系处理或分发过程,而非原始建立阶段。

鉴于其广泛应用及对多瘤病毒感染的强效反应性,SVG p12细胞系仍是病毒学研究(尤其是人类神经病毒学领域)的关键工具。但现建议使用该细胞系的研究人员验证其库存样本中不存在BKPyV污染,以确保实验可重复性和数据可靠性。

Tissue
胎儿大脑
Synonyms
  • SVGp12
  • SVG(P12)

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This human fetal glial cell line (SVG p12) contains SV40 Large T-Antigen sequences with an ori mutation and is additionally contaminated with BK polyomavirus strain UT, without deliberate genetic engineering of the contaminant. The SV40 insert is stably integrated. This classification applies only within Germany and may differ elsewhere.
Biosafety level
2

03Characteristics

Morphology
成纤维细胞
Cell type
星形胶质细胞

04Identifiers

Citation
SVG p12(赛通产品编号 305878)
NCBI TaxID
9606
Cellosaurus
CVCL_3797

05Handling and culture

Culture medium
EMEM(MEM Eagle),w:2 mM L-谷氨酰胺,w:2.2 g/L NaHCO3,w:EBSS(Cytion 文章编号 820100a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
Dissociation reagent
Accutase
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 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.

06Quality 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
我们使用完全生长培养基(包括 FBS)+10% DMSO 或 CM-1(Cytion 商品目录编号 800100)作为冷冻保存培养基,以获得足够的解冻后存活率,CM-1(Cytion 商品目录编号 800100)含有优化的渗透保护剂和代谢稳定剂,可提高恢复能力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。

07Donor

Donor age
妊娠第8-12周
Ethnicity
未说明