DS19

DS19 细胞系通常被称为 MEL DS19，是一种源于小鼠红白血病的永生化肿瘤细胞系。该细胞系由Friend病毒复合物（FVA病毒）诱导而成，其特征性表现类似于处于分化阶段的原红细胞。DS19 细胞因其在红细胞生成和白血病发生的分子和细胞机制研究中的作用而备受瞩目。

DS19 细胞系的一个显著特点是它对二甲基亚砜（DMSO）和hemin 等化学制剂的反应性。使用这些药物时，DS19 细胞会从白血病表型转变为更正常的红细胞表型，模拟自然红细胞分化的各个阶段。这种诱导分化的能力使 DS19 细胞系成为研究红细胞分化调控的重要模型，尤其是在这一过程被白血病转化破坏的情况下。

37°C, 5%_CO2, 加湿环境。

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.

使用基于 PCR 的检测方法和基于发光的支原体检测方法排除支原体污染。

为确保没有细菌、真菌或酵母菌污染，每天都要对细胞培养物进行目视检查。

如需长期保存，可将样品瓶放入气相液氮中，温度约为 -150 至 -196 ℃。在-80 °C下保存只能作为转入液氮前的短暂过渡。

冷冻保存的细胞系用干冰装运，并用经过验证的隔热包装和足够的制冷剂在整个运输过程中保持约 -78 °C 的温度。收到货后，应立即检查容器，并立即将小瓶转移到适当的储藏室。

在Cytion，我们保证产品的质量和活力。 我们保证，从我们的工厂发货后 60 天内，我们的细胞在开始培养时都是存活的。 我们保证所有材料均符合分析证书和/或产品说明书中描述的规格。

有关详细信息，请参阅我们的 <a href="" /Who-we-are/Warranty/"" hreflang=""x-default"">保修声明 。