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LS174T
Tissue
结肠
Disease
腺癌
Synonyms
Ls174T, LS174t, Ls-174-T, LS-174-T, LS 174 T, LS174T, Ls-174T, LS 174T, LS-174, LS174

Documents

LS174T

Cell line · Product number 300392

The LS147T cell line is a variant of LS-180, both of which are derived from a Duke's type B adenocarcinoma of the colon in a 58-year-old White female pati...

US$395.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

LS147T 细胞系是 LS-180 的变种,两者都来自一名 58 岁白人女性患者的杜克 B 型结肠腺癌。最初的 LS-180 细胞系是通过对切碎的肿瘤组织进行 10 个月的培养而建立的。LS-147T 及其母系的显著特点是表达多种癌基因,包括 myc、myb、ras 和 fos,而其他基因如 sis、abl 和 ros 则为阴性。该品系还表达高水平的癌胚抗原(CEA)、白细胞介素 6(IL-6)和白细胞介素 10(IL-10),这些都是结直肠癌研究的重要标志物和潜在靶点。

这些细胞表现出结肠上皮细胞的几个主要特征,包括丰富的微绒毛和胞浆内粘蛋白空泡,这些特征通常与结肠粘膜的分泌细胞有关。电子显微镜研究证实了这些结构细节,进一步证明了它们的起源和分化状态。重要的是,LS-147T 细胞在免疫缺陷小鼠体内具有致瘤性,在皮下接种高密度细胞时可持续产生肿瘤,从而证实了它们的恶性潜能。

此外,LS-147T 细胞系在研究结直肠癌的分子和免疫学方面特别有价值。据报道,与母系 LS-180 相比,该细胞系更容易进行亚培养,使其成为长期研究中更实用的选择。LS-147T细胞产生的CEA明显高于HT-29等其他已建立的品系,这使得LS-147T成为了解肿瘤标志物动态和探索结直肠癌靶向疗法的重要模型。

Tissue
结肠
Disease
腺癌
Synonyms
  • Ls174T
  • LS174t
  • Ls-174-T
  • LS-174-T
  • LS 174 T
  • LS174T
  • Ls-174T
  • LS 174T
  • LS-174
  • LS174

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
Tumourigenic
是,在裸鼠身上
Karyotype
45,x 有一条 x 染色体缺失,但无其他染色体畸变

04Identifiers

Citation
LS174T(Cytion 目录号 300392)
NCBI TaxID
9606
Cellosaurus
CVCL_1384

05Expression and susceptibility

Protein expression
结肠抗原 3 +、CEA +、p53 -、GFAP -、mRNA 表达 +
Antigen expression
HLA A2、B13、B50,O 型血
Isoenzymes
ADA,1:G6PD,B,PGM1,1,PGM3,2,PGD,A,ES-D,1,PEP-D,1
Oncogenes
Myc +, myb + , ras +, fos +, p53 +, sis -, abl -, ros -, src -
Mutational profile
LS-174T 细胞的 Kras 基因第 12 密码子发生突变:GGT(Wt Gly)>GAT(Asp)
Reverse transcriptase
阴性
Products
癌胚抗原 (CEA) 10 天内 1944 纳克/106 个细胞、粘蛋白、白细胞介素-10 (IL-10)、白细胞介素-6 (IL-6)

06Handling 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 和 1% NEAA
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
5至8×10⁴个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Post-thaw recovery
解冻后,将细胞以5×10⁴个细胞/平方厘米的密度接种于培养皿中,使细胞从冷冻过程中恢复并至少贴壁24小时。
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
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。

08Donor

Donor age
58 年
Ethnicity
高加索人