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MEC-1
Tissue
外周血
Disease
慢性淋巴細胞白血病
Synonyms
MEC1

Documents

MEC-1

Cell line · Product number 305434

The MEC-1 cell line is derived from a patient with chronic lymphocytic leukemia (CLL) in the prolymphocytoid transformation stage. It serves as a critical...

US$375.00excl. tax and shipping
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1

01General information

Description

MEC-1 細胞系源自一名處於前淋巴細胞樣轉化階段的慢性淋巴細胞白血病(CLL)患者。它作為研究 B 細胞惡性腫瘤生物學的重要模型,特別是 CLL 的分子機制及其對治療的反應。 MEC-1 細胞的特徵在於表達 CD19 和 CD5 標記,這與其源自 CLL 的背景相符,且廣泛用於研究白血病中的化療耐藥機制及代謝適應機制。

利用 MEC-1 細胞進行的研究,已深入揭示了腫瘤微環境與白血病細胞存活之間的相互作用。例如,該細胞系在闡明針對性療法(如 Bcl-2 拮抗劑維奈托克)的耐藥機制方面發揮了關鍵作用。 在抗藥性 MEC-1 衍生物(MEC-1 VER)中,觀察到 p38 MAPK 過度表達,以及促凋亡與抗凋亡蛋白質表達的改變。這凸顯了針對 p38 MAPK 和免疫蛋白酶體等途徑,以克服藥物抗藥性的潛力。

在缺氧條件下,MEC-1 細胞會發生代謝重編程,以維持其存活與增殖。這種適應機制涉及 GLUT1 和 GLUT3 等葡萄糖轉運蛋白的表達增加,以及由缺氧誘導因子(HIFs)調控的糖解作用與乳酸生成變化。 此外,透過 CRISPR/Cas9 介導刪除特定微RNA(如 miR-155)的研究,揭示了這些微RNA 在缺氧壓力下調節 MEC-1 細胞代謝與增殖的作用,為治療干預提供了進一步的途徑。

Tissue
外周血
Disease
慢性淋巴細胞白血病
Synonyms
  • MEC1

02Classification

Organism
Human
Sex
Male
Growth properties
Adherent and suspension
Biosafety level
1

03Characteristics

Morphology
淋巴母細胞樣
Cell type
B 細胞

04Identifiers

Citation
MEC-1(Cytion 型號 305434)
NCBI TaxID
9606
Cellosaurus
CVCL_1870

05Expression and susceptibility

Mutational profile
突變:TP53,p.Gln317Profs*20 (c.949dupC) (c.949_950insC),純合子;基因融合:R3HCC1L-HTRA1
Viruses
轉化體:愛潑斯坦-巴爾病毒(EBV)

06Handling and culture

Culture medium
IMDM,重量濃度:4.5 g/L 葡萄糖,重量濃度:4 mM L-谷氨醯胺,重量濃度:25 mM HEPES, w: 1.0 mM 丙酮酸鈉,w: 3.024 g/L NaHCO₃(Cytion 產品編號 820800a)
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)
Seeding density
3-5×10⁵/毫升
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
61年
Ethnicity
高加索人