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HT55
Tissue
直肠
Disease
腺癌
Synonyms
HT55

Documents

HT55

Cell line · Product number 305018

HT55 is a human rectal adenocarcinoma cell line established from the primary rectal tumor of a 54-year-old Caucasian female. The line grows as an adherent...

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  • CoA
1

01General information

Description

HT55 是一种从一名 54 岁白人女性的原发性直肠肿瘤中建立的人直肠腺癌细胞系。该细胞系呈粘附性单层生长,具有上皮样形态。 HT55 携带 APC(结肠腺瘤性息肉病)抑癌基因中的多个杂合性和纯合性功能缺失突变,包括 p.Gln1131Ter、p.Gln1303Ter、p.Arg1463Ser、 p.Asn581Tyr 和 p.Lys241Ter(均为杂合突变),以及一个纯合的 p.Arg213Leu 替换突变。 这种突变谱使HT55成为APC驱动的结直肠癌发生生物学相关模型,反映了驱动大多数人类结直肠癌的经典WNT通路失调。

HT55在结直肠癌研究中被广泛用于WNT/β-catenin信号传导、APC肿瘤抑制功能、药物敏感性和耐药性的研究,以及针对WNT通路组分的靶向药物的临床前评估。 该细胞系适用于体外药理学检测和免疫缺陷小鼠模型中的异种移植研究,为机制和转化性结直肠癌研究提供了一个附着性良好、易于操作的体外平台。 由于存在多种APC截短突变,HT55代表了通常由APC功能丧失驱动的微卫星稳定、染色体不稳定的结直肠癌亚型。

Tissue
直肠
Disease
腺癌
Applications
结直肠癌研究;WNT/APC通路研究;药物敏感性与耐药性检测;肿瘤学临床前研究;异种移植模型;靶向治疗评估
Synonyms
  • HT55

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮样
Cell type
上皮细胞
Doubling time
28 小时

04Identifiers

Citation
HT55(Cytion 产品编号 305018)
NCBI TaxID
9606
Cellosaurus
CVCL_1294

05Expression and susceptibility

Mutational profile
突变:p.Gln1131Ter,杂合子;突变:p.Gln1303Ter,杂合子;突变:p.Arg1463Ser,杂合子;突变:p.Asn581Tyr,杂合子;突变:p.Lys241Ter,杂合子; 突变:p.Arg213Leu,纯合子

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
Dissociation reagent
Accutase
Subculturing
从贴壁细胞中移除旧培养基,并用不含钙和镁的PBS洗涤细胞。对于T25培养瓶,使用3-5毫升PBS;对于T75培养瓶,使用5-10毫升。 随后,用Accutase完全覆盖细胞,T25培养瓶用量为1-2毫升,T75培养瓶用量为2.5毫升。将细胞在室温下孵育8-10分钟以使其脱落。 孵育结束后,加入10毫升培养基轻轻混匀细胞使其重新悬浮,然后以300×g离心3分钟。弃去上清液,将细胞用新鲜培养基重新悬浮,并转移至已装有新鲜培养基的新培养瓶中。
Split ratio
1 到 5
Seeding density
1至3×10⁴个细胞/平方厘米
Fluid renewal
每 2 至 3 天
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

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
54 年
Ethnicity
高加索人