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U2932
Tissue
腹水
Disease
活化型 B 細胞型彌漫性大 B 細胞淋巴瘤
Synonyms
U2932

Documents

U2932

Cell line · Product number 305482

The U-2932 cell line is a diffuse large B-cell lymphoma (DLBCL) model that was established from a patient who developed secondary DLBCL following treatmen...

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  • CoA
1

01General information

Description

U-2932 細胞系是一種彌漫性大 B 細胞淋巴瘤(DLBCL)模型,係由一名在接受霍奇金淋巴瘤(HL)治療後罹患繼發性 DLBCL 的患者所建立。 該細胞系呈現 DLBCL 的典型形態學特徵,且已證實能在裸鼠體內形成菌落,證實其致瘤潛力。 U-2932 源自腹水,並維持 B 細胞表型,其免疫球蛋白重鏈 (IgH) 基因重排呈現體細胞高突變狀態。值得注意的是,該細胞系為愛潑斯坦-巴爾病毒 (EBV) 陰性,這使其有別於其他某些源自淋巴瘤的細胞系。

U-2932 的基因組特徵分析顯示其具有複雜的核型,包括 18q21 和 3q27 染色體帶的高水平擴增,這些區域與致癌驅動基因(如 BCL-2 和 BCL-6)相關,而這兩種基因在此細胞系中均呈過度表達。 此外,該細胞系在腫瘤抑制基因 p53 的第 176 個胺基酸位點攜帶突變,且免疫組織化學分析證實 p53 過度表達。這些遺傳變異顯示其在腫瘤進展及潛在化療抗藥性中均扮演重要角色。

Tissue
腹水
Disease
活化型 B 細胞型彌漫性大 B 細胞淋巴瘤
Synonyms
  • U2932

02Classification

Organism
Human
Sex
Female
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
懸浮液中呈單個或成簇生長的小型圓形細胞
Cell type
B 細胞淋巴瘤
Doubling time
48 小時

04Identifiers

Citation
U2932(Cytion 型號 305482)
NCBI TaxID
9606
Cellosaurus
CVCL_1896

05Expression and susceptibility

Antigen expression
CD3-、CD10+、CD13-、CD19+、CD20+、CD37+、CD38+、 cyCD79a+、CD80+、CD138+、HLA-DR+、sIgG-、cIgG-、sIgM+、cIgM+、sIgkappa+、cIgkappa+、sIglambda-、cIglambda-

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% 經熱滅活的胎牛血清
Seeding density
3-5×10⁵/毫升
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
29年
Ethnicity
未指定