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C33A
Tissue
子宮頸
Disease
子宮頸鱗狀細胞癌
Synonyms
C33A, C33a, C33-A, C-33-A, C-33A, C33

Documents

C33A

Cell line · Product number 305072

C-33 A cells originate from the cervical tissue of a 66-year-old Caucasian female diagnosed with uterine cancer. This cell line is characterized by a uniq...

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

01General information

Description

C-33 A 細胞源自一名 66 歲、經診斷患有子宮癌的白人女性的子宮頸組織。 該細胞系的特徵在於 TP53 基因中存在一種獨特的遺傳變異,其第 273 密碼子處的點突變導致精胺酸被半胱氨酸取代,進而引起 p53 蛋白質的過度表達。 此突變在細胞的病理生理學中扮演關鍵角色,影響其生長特性與致瘤潛力。

值得注意的是,C-33 A 細胞已被證實具有致瘤性。當將這些細胞植入免疫缺陷裸鼠體內時,它們具有形成未分化癌的能力,這凸顯了其在癌症研究中的實用價值,特別是在旨在理解子宮頸癌腫瘤起始與進展機制的研究中。 此外,這些細胞對人類乳突病毒(HPV)的 DNA 和 RNA 均呈陰性,這使其有別於許多常攜帶 HPV 整合序列的其他子宮頸癌細胞系。此特性使 C-33 A 細胞在研究不依賴 HPV 感染而發生的子宮頸癌時具有特別的價值,有助於深入了解致癌作用的其他途徑。

Tissue
子宮頸
Disease
子宮頸鱗狀細胞癌
Synonyms
  • C33A
  • C33a
  • C33-A
  • C-33-A
  • C-33A
  • C33

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮性
Tumourigenic
是的

04Identifiers

Citation
C33A(Cytion 型號 305072)
NCBI TaxID
9606
Cellosaurus
CVCL_1094

05Expression and susceptibility

Protein expression
致癌基因:P53+、Prb+

06Handling and culture

Culture medium
EMEM(MEM Eagle),含 2 mM L-谷氨醯胺,含 2.2 g/L NaHCO₃,含 EBSS(Cytion 產品編號 820100a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% FBS 和 1% NEAA
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。
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
66年