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TC-1
Organism
Mouse
Sex
Unspecified
Growth properties
Adherent
GMO status
GMO-S1

Documents

TC-1

Cell line · Product number 305388

TC-1 is a murine lung epithelial cell line transformed with human papillomavirus type 16 (HPV16) E6 and E7 oncogenes, along with an activated H-ras oncoge...

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01General information

Description

TC-1是一种小鼠肺上皮细胞系,经人乳头瘤病毒16型(HPV16)E6和E7致癌基因以及激活的H-ras致癌基因转染转化。 该细胞系通过双逆转录病毒转导策略,由C57BL/6小鼠原代肺上皮细胞建立。初始阶段采用源自莫洛尼小鼠白血病病毒(MoMLV)的逆转录病毒载体(如pLXSN-16E6E7)递送E6和E7致癌基因。 该载体中,基因由病毒5′长末端重复序列(LTR)启动子驱动表达,而受SV40内部启动子调控的庆大霉素耐药基因(NeoR)则实现G418筛选。E6和E7的稳定表达导致p53和Rb肿瘤抑制通路失活,从而驱动细胞永生化。

初筛后,引入基于MoMLV的逆转录病毒载体(携带激活型H-ras[G12V]基因)完成转化。 该载体携带不同选择性标记,通常为由SV40或PGK等内部启动子驱动的磺胺霉素耐药基因(hph)。经G418和磺胺霉素序列筛选存活的细胞,可实现三种致癌基因的稳定整合,最终形成完全转化且永生化的TC-1细胞。

功能研究表明,TC-1细胞强烈表达MHC I类分子,具有高度免疫原性,被广泛用于评估针对HPV相关恶性肿瘤的实验性疫苗和免疫疗法。该细胞系在临床前疫苗研究中发挥关键作用,尤其在诱导针对HPV16 E7的CD8+ T细胞应答方面成效显著。 此外,通过开发MHC I类分子表达下调的亚系细胞,成功模拟免疫逃逸机制,深化了对肿瘤细胞与宿主免疫相互作用的认识。这些特性使TC-1成为免疫肿瘤学及HPV疫苗研发领域强大而多用途的模型。

02Classification

Organism
Mouse
Sex
Unspecified
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This murine lung epithelial cell line (TC-1) contains the HPV16 E6/E7 oncogenes delivered via retroviral vector pLXSN16E6E7 together with HRAS oncogenic sequences, supporting strong transformation. The inserts are stably integrated. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮样
Cell type
Ephitelial
Doubling time
18.2 小时

04Identifiers

Citation
TC-1(Cytion 目录编号 305388)
NCBI TaxID
10090
Cellosaurus
CVCL_4699

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
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

Ethnicity
未说明