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HCT-8 (HRT-18) 細胞
Tissue
直腸
Disease
腺癌
Synonyms
HCT 8, HCT8

Documents

HCT-8 (HRT-18) 細胞

Cell line · Product number 300210

HCT-8 cells, also known as human ileocecal colorectal adenocarcinoma cells, are an epithelial cell line originally derived from a 67-year-old Caucasian ma...

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01General information

Description

HCT-8 細胞,亦稱為人類迴盲腸結直腸腺癌細胞,是一種源自一名 67 歲白人男性迴盲腸腺癌患者的外科細胞系。 HCT-8 細胞系建立於 1960 年代末期,廣泛應用於癌症研究,特別是在大腸直腸癌的病理機制、轉移及治療反應等研究領域。

從形態學來看,HCT-8 細胞呈上皮樣特徵,展現出多邊形形態的單層生長模式。它們既能在貼壁培養中生長,也能在半懸浮培養中生長,這正是癌細胞轉移某些過渡階段的特徵。此特性使其特別適用於與癌細胞侵襲和遷移相關的研究。

就基因型而言,HCT-8 細胞為超三倍體,含有數種常見於大腸直腸癌的染色體異常,包括與癌症進展及抗藥性機制相關的突變與缺失。此遺傳特徵使其適用於腫瘤學研究,特別是針對參與腫瘤發生與藥物抗性的遺傳路徑之研究。

利用 HCT-8 細胞進行的研究,對理解結直腸癌的生物學機制貢獻良多,包括闡明參與癌細胞增殖、凋亡及化療抗藥性的分子途徑。該細胞系至今仍是研究新療法療效,以及探索結直腸癌分子機制的重要模型。

Tissue
直腸
Disease
腺癌
Synonyms
  • HCT 8
  • HCT8

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮樣
Tumourigenic
在裸鼠身上
Doubling time
15 小時

04Identifiers

Citation
HCT-8(Cytion 型號 300210)
NCBI TaxID
9606
Cellosaurus
CVCL_2478

05Expression and susceptibility

Antigen expression
CDx (+/-),CDy (-),
Isoenzymes
AK-1, 1, ES-D, 1-2, GLO-1, 2, G6PD, B, PGM1, 1, PGM3, 1, Me-2, 1
Mutational profile
HRT-18 細胞的 Kras 基因第 13 個密碼子攜帶一項突變:GGC(野生型 Gly)>GAC(Asp)
Viruses
逆轉錄酶檢測結果為陰性
Products
癌胚抗原(CEA)0.5 ng/10 exp6 個細胞/10 天、鹼性磷酸酶、角蛋白

06Handling and culture

Culture medium
DMEM:Ham's F12(1:1),重量比:3.1 g/L 葡萄糖,重量比:2.5 mM L-谷氨酰胺,重量比:15 mM HEPES, w: 0.5 mM 丙酮酸鈉,w: 1.2 g/L NaHCO₃(Cytion 產品編號 820400a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 的胎牛血清(FBS)
Dissociation reagent
Accutase
Subculturing
從貼壁細胞中移除舊培養基,並用不含鈣和鎂的PBS洗滌細胞。T25培養瓶使用3-5毫升PBS,T75培養瓶則使用5-10毫升。 接著,用 Accutase 完全覆蓋細胞,T25 培養瓶使用 1–2 毫升,T75 培養瓶則使用 2.5 毫升。將細胞於室溫下孵育 8–10 分鐘,使其脫附。 孵育後,將細胞與 10 毫升培養基輕柔混合以使其重新懸浮,然後以 300xg 離心 3 分鐘。棄去上清液,將細胞重新懸浮於新鮮培養基中,並轉移至已預先加入新鮮培養基的新培養瓶中。
Seeding density
2 至 4 × 10⁴ 個細胞/cm²
Fluid renewal
每週 2 至 3 次
Post-thaw recovery
快速
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

透過基於 PCR 的檢測及基於發光原理的支原體檢測方法,排除支原體污染的可能性。

為確保無細菌、真菌或酵母菌污染,每日均會對細胞培養物進行目視檢查。

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基(含 FBS)+ 10% DMSO 以確保解凍後的存活率,或使用 CM-1 (Cytion 型號 800100),該培養基含有經優化的滲透保護劑和代謝穩定劑,可提升細胞恢復率並減輕冷凍誘導的壓力。
Storage conditions

若需長期保存,請將試管置於溫度約為 −150 至 −196 °C 的氣相液氮中。僅在轉移至液氮之前,可將試管暫時存放於 −80 °C 環境中,作為短期過渡步驟。

Shipping conditions

冷凍保存的細胞系會以乾冰冷藏,並裝於經驗證的隔熱包裝中,包裝內含有足夠的冷媒,以確保在運輸過程中溫度維持在約 −78 °C。收到貨物後,請立即檢查容器,並盡快將試管轉移至適當的儲存場所。

08Donor

Donor age
67年