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NCI-H3122
Tissue
肺
Disease
腺癌
Synonyms
NCI-H3122, H-3122, NCIH3122

Documents

NCI-H3122

Cell line · Product number 300484

The NCI-H3122 cell line is derived from non-small-cell lung cancer (NSCLC) and is characterized by the presence of the EML4-ALK fusion gene, which results...

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01General information

Description

NCI-H3122 細胞系源自非小細胞肺癌(NSCLC),其特徵在於存在 EML4-ALK 融合基因,該基因源於棘皮動物微管相關蛋白樣 4 (EML4)與異型淋巴瘤激酶(ALK)之間的染色體易位所致。此融合基因會驅動致癌訊號傳導,並使 NCI-H3122 細胞的存活高度依賴於 ALK 訊號傳導,此現象被稱為「ALK 成癮」。 NCI-H3122 已成為研究標靶治療的重要模型,特別是針對克唑替尼等 ALK 抑制劑。

研究顯示,NCI-H3122 細胞對克唑替尼敏感,該藥物可抑制 ALK 的磷酸化及其下游靶點(如 AKT 和 ERK 路徑)。 然而,患者往往會對克唑替尼產生抗藥性,通常是由於表皮生長因子受體(EGFR)活化等替代性訊號傳導途徑所致。 此種抗藥性機制已在 NCI-H3122 抗藥性變異株中得到證實,研究觀察到這些變異株的 EGFR 磷酸化水平升高,且使用克唑替尼搭配阿法替尼或厄洛替尼等 EGFR 抑制劑,對 ALK 和 EGFR 進行雙重抑制,已被證實能克服此抗藥性。

NCI-H3122 常被用於探索旨在預防或逆轉藥物抗藥性的聯合療法。例如,同時針對 ALK 和 EGFR 路徑的策略在臨床前模型中已證實有效,且這種雙重抑制已被建議作為 ALK 陽性、克唑替尼抗藥性非小細胞肺癌(NSCLC)患者的潛在治療方法。

Tissue
肺
Disease
腺癌
Synonyms
  • NCI-H3122
  • H-3122
  • NCIH3122

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Identifiers

Citation
NCI-H3122(Cytion 型號 300484)
NCBI TaxID
9606
Cellosaurus
CVCL_5160

04Handling 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
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。
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.

05Quality 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。

06Donor

Ethnicity
高加索人