Skip to content
CMT-93
Tissue
直腸
Disease
小鼠直腸癌
Synonyms
CMT-93, CMT 93, C57 Mouse Tumor 93

Documents

CMT-93

Cell line · Product number 305761

The CMT93 cell line is a murine colorectal carcinoma model established from a chemically induced rectal tumor in a C57BL/ICRF mouse. The tumor originated ...

US$430.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

CMT93 細胞系是從 C57BL/ICRF 小鼠的化學誘導性直腸腫瘤所建立的小鼠結直腸癌模型。該腫瘤源於接觸強效致癌物甲基亞氧基甲醇乙酸酯(MAM 乙酸酯)後所產生。 CMT93 源自原始腫瘤的第四代體內移植,並採用選擇性胰蛋白酶消化技術進行培養,以分離上皮細胞群並去除間質雜質。經過反覆傳代與純化,所得細胞系呈現穩定的上皮形態與生長模式。

在體外,CMT93 細胞以連貫的上皮團塊形式生長,並展現分化腸上皮細胞的典型特徵。電子顯微鏡觀察顯示存在帶有糖蛋白絲的微絨毛、橋粒連接,以及偶見的小葉狀結構,這表明其部分保留了正常直腸上皮的結構。 這些細胞具有高度黏附性,在以 1:2 比例傳代後約 7 天即可達到細胞融合狀態。雖然主要為上皮細胞,但早期傳代中仍包含混合細胞群,此問題已透過連續選擇性傳代得以解決。該細胞系已維持傳代多次,並成功進行冷凍保存以供長期使用。

CMT93 廣泛應用於胃腸道癌症研究,特別是在探索結直腸癌發生機制、上皮-間質相互作用、免疫反應以及微生物-宿主相互作用的研究中。 該細胞系亦被應用於短串聯重複序列(STR)分析研究,以支援小鼠細胞系的同種鑑定,從而確認其獨特身份,並彰顯其作為經驗證的臨床前研究模型之價值。

Tissue
直腸
Disease
小鼠直腸癌
Synonyms
  • CMT-93
  • CMT 93
  • C57 Mouse Tumor 93

02Classification

Organism
Mouse
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Characteristics

Cell type
上皮性

04Identifiers

Citation
CMT-93(Cytion 型號 305761)
NCBI TaxID
10090
Cellosaurus
CVCL_1986

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
Seeding density
1 至 3 × 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.

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

Breed / subspecies
C57BL/icrf
Donor age
1年7個月