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NCI-H1781
Tissue
轉移性
Disease
微創肺腺癌
Metastatic site
胸腔積液
Synonyms
H1781, H-1781, NCIH1781

Documents

NCI-H1781

Cell line · Product number 305731

The NCI-H1781 cell line is a human non-small cell lung carcinoma (NSCLC) model derived from a lung adenocarcinoma. This cell line is particularly notewort...

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01General information

Description

NCI-H1781 細胞系是一種源自肺腺癌的人類非小細胞肺癌(NSCLC)模型。 該細胞系特別值得注意之處在於其攜帶 ERBB2(HER2)G776insV_G/C 突變,這是一種發生於外顯子 20 的同框插入突變,具有功能性活化作用。 此類突變是已知的一類肺癌的驅動因子,使 NCI-H1781 成為研究 HER2 靶向治療及抗藥性機制的有用模型。 NCI-H1781 中的 ERBB2 突變會導致激酶持續活化,並透過 PI3K/AKT 和 MAPK 等途徑觸發下游訊號傳導,從而促進細胞增殖與存活,且此過程不依賴於外部生長因子。

在分子特徵分析研究中,NCI-H1781 顯示出 ERBB2 轉錄本和蛋白質水平升高,這與其基因變異相符。此外,由於該細胞系對拉帕替尼或阿法替尼等 HER2 抑制劑的敏感性會因細胞環境和組合靶向策略而異,因此常被用於藥物基因組學研究。 該細胞系同時對EGFR抑制劑呈現抗藥性,此特徵使其有別於EGFR突變型肺癌模型,並突顯了針對HER2的靶向治療之臨床意義。 鑑於其特徵明確的遺傳背景及體外強勁的生長特性,NCI-H1781 成為測試 HER2 靶向化合物及探索肺腺癌治療抗藥性機制的可靠臨床前模型。

Tissue
轉移性
Disease
微創肺腺癌
Metastatic site
胸腔積液
Synonyms
  • H1781
  • H-1781
  • NCIH1781

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Identifiers

Citation
NCI-H1781(Cytion 型號 305731)
NCBI TaxID
9606
Cellosaurus
CVCL_1494

04Expression and susceptibility

Mutational profile
突變:PTEN,簡單突變,p.Gln245fs*6 (c.735_739delGCCGT),雜合子;TP53,簡單突變,p.Val157Phe (c.469G>T),純合子

05Handling and culture

Culture medium
RPMI 1640,含 2.0 mM 穩定谷氨醯胺,含 2.0 g/L NaHCO₃(Cytion 產品編號 820700a)
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
Fluid renewal
每週 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

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。

07Donor

Donor age
66年
Ethnicity
高加索人