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TTA1
Tissue
甲狀腺
Disease
甲狀腺未分化癌
Synonyms
TTA1, TTA-I

Documents

TTA1

Cell line · Product number 305138

The TTA-1 cell line is derived from an undifferentiated thyroid carcinoma, also known as anaplastic thyroid carcinoma (ATC). This cell line exhibits the h...

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01General information

Description

TTA-1 細胞系源自一種未分化甲狀腺癌,亦稱為未分化型甲狀腺癌(ATC)。該細胞系展現出與 ATC 相關的高度侵襲性特徵,包括快速增殖及對傳統療法的抗藥性。 對 TTA-1 細胞進行的細胞遺傳學分析顯示,其存在廣泛的染色體異常,模式染色體數為 56-59,且伴有大量結構重排。這些特徵突顯了 ATC 典型的遺傳不穩定性。

TTA-1 細胞已被廣泛應用於腫瘤形成能力及致癌機制之研究。研究顯示,TTA-1 細胞的腫瘤形成能力可透過遺傳干預加以調控,例如藉由微細胞介導的染色體轉移,將第 11 號染色體導入細胞中。 該染色體的加入導致腫瘤形成特性部分受到抑制,暗示第11號染色體上存在腫瘤抑制基因。此類研究為ATC的潛在基因治療方法提供了新見解。

已知 TTA-1 細胞會分泌白細胞介素-6(IL-6)等細胞因子,而 IL-6 與癌症進展及 ATC 相關的發炎反應有關。 TTA-1 細胞所產生的細胞因子,反映了其在調控腫瘤微環境相互作用中的作用,使其成為研究 ATC 生物學及治療抗藥性的寶貴模型。

Tissue
甲狀腺
Disease
甲狀腺未分化癌
Synonyms
  • TTA1
  • TTA-I

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮性
Tumourigenic
是的
Doubling time
28.8 小時

04Identifiers

Citation
TTA1(Cytion 型號 305138)
NCBI TaxID
9606
Cellosaurus
CVCL_6297

05Handling and culture

Culture medium
DMEM,含 4.5 g/L 葡萄糖、4 mM L-谷氨醯胺、3.7 g/L NaHCO₃ 及 1.0 mM 丙酮酸鈉(Cytion 產品編號 820300a)
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.

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
64年