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MMQ
Tissue
大脑
Disease
大鼠垂体肿瘤

Documents

MMQ

Cell line · Product number 300498

The MMQ cell line is a clonal, prolactin-secreting cell line derived from the 7315a rat pituitary tumor. It exclusively secretes prolactin and expresses f...

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  • CoA
1

01General information

Description

MMQ 细胞系是一种克隆性催乳素分泌细胞系,来源于 7315a 大鼠垂体瘤。它专门分泌催乳素,并表达功能性多巴胺受体,特别是 D2 亚型受体。各种实验证明,多巴胺可通过降低细胞内环磷酸腺苷(cAMP)水平和钙摄取抑制催乳素(PRL)的释放。这种抑制作用被氟哌啶醇和百日咳毒素逆转,证实了 GTP 结合蛋白在多巴胺作用中的作用。MMQ 细胞对体生长抑素(SRIF)和血管活性肠多肽(VIP)也有反应,但对 TRH、血管紧张素 II 或神经紧张素没有反应。

MMQ 细胞增殖迅速,在最佳条件下不到 24 小时就能翻一番。当移植到大鼠体内时,MMQ 细胞形成的肿瘤会增加血清催乳素水平,但不会改变其他激素,如促肾上腺皮质激素。这种细胞系是研究催乳素调节的重要模型,特别是与多巴胺及其对催乳素分泌的抑制机制有关的研究。

Tissue
大脑
Disease
大鼠垂体肿瘤
Applications
三维细胞培养

02Classification

Organism
Rat
Sex
Unspecified
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
球形细胞
Karyotype
大鼠超二倍体核型,多倍体率为 6% - 49-52<2n> - 自发断裂程度高

04Identifiers

Citation
MMQ(Cytion 目录号 300498)
NCBI TaxID
10116
Cellosaurus
CVCL_2117

05Expression and susceptibility

Receptors expressed
多巴胺
Viruses
SMRV-
Products
催乳素

06Handling and culture

Culture medium
RPMI 1640,w:2.0 mM 稳定谷氨酰胺,w:2.0 g/L NaHCO3(Cytion 文章编号 820700a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 7.5% 马血清和 2.5% 热灭活 FBS
Subculturing
通过定期添加或更换培养基来维持细胞培养。初始培养时细胞密度应为5×10⁵个细胞/毫升,并保持细胞浓度在3×10⁵至1×10⁶个细胞/毫升范围内以获得最佳生长效果。
Seeding density
> 2 × 10⁵ 个细胞/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

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。

Freeze medium
我们使用完全生长培养基(包括 FBS)+10% DMSO 或 CM-1(Cytion 商品目录编号 800100)作为冷冻保存培养基,以获得足够的解冻后存活率,CM-1(Cytion 商品目录编号 800100)含有优化的渗透保护剂和代谢稳定剂,可提高恢复能力并减少冷冻引起的应激。
Storage conditions

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。

Shipping conditions

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。

08Donor

Donor age
5 天