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DLD-1 細胞
Tissue
冒號
Disease
腺癌
Synonyms
DLD 1, DLD1, CoCL3

Documents

DLD-1 細胞

Cell line · Product number 300220

DLD-1 is a human colorectal adenocarcinoma cell line derived from the distal colon of an adult patient. These cells are epithelial in morphology and were ...

US$395.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

DLD-1 是一種源自成人患者遠端結腸的人類結直腸腺癌細胞系。這些細胞具有上皮細胞形態,最初是為了研究結直腸癌的機制與病理而建立的。 DLD-1 細胞廣泛應用於腫瘤學研究,特別是在針對癌症分子生物學、基因表達以及各種化療藥物作用機制的研究中。

該細胞系以其 KRAS 基因第 13 密碼子處的雜合突變而聞名,此為大腸直腸癌的常見特徵,且與癌細胞的存活與增殖有關。 此外,DLD-1 還呈現 APC 基因的突變,這導致 Wnt 訊號傳導路徑失調,而該路徑是結直腸癌發生過程中的關鍵要素。 DLD-1 在研究中被廣泛應用,為腫瘤行為、藥物反應及癌症遺傳學提供了寶貴的見解,使其成為結直腸癌研究與治療開發中至關重要的模型。

Tissue
冒號
Disease
腺癌
Synonyms
  • DLD 1
  • DLD1
  • CoCL3

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮樣
Tumourigenic
在裸鼠身上
Karyotype
2n = 46
Doubling time
15 小時

04Identifiers

Citation
DLD-1(Cytion 型號 300220)
NCBI TaxID
9606
Cellosaurus
CVCL_0248

05Expression and susceptibility

Protein expression
角蛋白
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

06Handling 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。
Seeding density
1 至 2 × 10⁴ 個細胞/cm²
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.

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