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DS19
Disease
小鼠紅細胞白血病
Synonyms
MEL-DS19, MEL DS19, MELDS19, 745/DS19, MELC DS19, MEL-745A cl. DS19, MEL

Documents

DS19

Cell line · Product number 305153

The DS19 cell line, often referred to as MEL DS19, represents an immortalized tumor cell line originating from murine erythroleukemia. This cell line was ...

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

01General information

Description

DS19 細胞系(常被稱為 MEL DS19)是一種源自小鼠紅白血病的永生化腫瘤細胞系。該細胞系是由 Friend 病毒複合體(FVA 病毒)誘導而成的,其特徵在於展現出與分化階段的前紅細胞相似的特性。 DS19 細胞特別以其在研究造血及白血病發生背後之分子與細胞機制方面的實用性而聞名。

DS19 細胞系的一大特徵,在於其對某些化學試劑(例如二甲基亞砜(DMSO)和血紅素)的反應性;這些試劑已知能誘導該細胞分化。 當受到這些試劑處理時,DS19 細胞會從白血病表型轉變為更接近正常紅細胞的表型,模擬自然紅細胞分化的各階段。這種可被誘導分化的能力,使 DS19 細胞系成為研究紅細胞分化調控的寶貴模型,特別是在該過程因白血病轉化而受干擾的情況下。

Disease
小鼠紅細胞白血病
Synonyms
  • MEL-DS19
  • MEL DS19
  • MELDS19
  • 745/DS19
  • MELC DS19
  • MEL-745A cl. DS19
  • MEL

02Classification

Organism
Mouse
Growth properties
Suspension
GMO status
GMO-S1
GMO status details
GMO-S1: This murine erythroid leukemia cell line (MEL-745A cl. DS19) contains Friend Murine Leukemia Virus-associated sequences characteristic of the transformed parental line, stably present without active viral release. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
淋巴母細胞

04Identifiers

Citation
DS19(Cytion 型號 305153)
NCBI TaxID
10090
Cellosaurus
CVCL_2111

05Expression and susceptibility

Viruses
轉化體:友善型小鼠白血病病毒(FrMLV)

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)
Subculturing
透過移液管上下吸放,輕柔地將燒瓶中的細胞懸浮液均質化,然後取一份具代表性的樣本,以測定每毫升的細胞密度。使用新鮮培養基將懸浮液稀釋至細胞濃度為 1 × 10⁵ 個細胞/毫升,並將調整後的懸浮液分裝至新的燒瓶中,以供進一步培養。
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

Breed / subspecies
DBA/2