冷冻保存细胞之方法
冷冻保存方法一: 冷冻管置于4℃ 30~60 分钟→ (-20 ℃30 分钟*) → -80 ℃16~18 小时(或隔夜) → 液氮槽vaporphase 长期储存。
冷冻保存方法二: 冷冻管置于已设定程序之可程序降温机中每分钟降1-3 ℃ 至–80 ℃ 以下, 再放入液氮槽vapor phase长期储存。-20 ℃不可超过1 小时, 以防止冰晶过大,造成细胞大量死亡,亦可跳过此步骤直接放入-80℃ 冰箱中,惟存活率稍微降低一些。
产品名称
|
大鼠胸腺成纤维细胞
|
规格
|
详见说明书
|
货号
|
BH-8010758
|
细胞培养的优点:
1.研究的对象是活细胞
在实验过程中,根据要求可始终保持细胞活力,并可长时间监控、检测甚至定量评估一部分活细胞的情况,包括活细胞的形态、结构、生命活动等。
2.研究条件可以人为控制
pH、温度、氧气、二氧化碳、张力等物理化学的条件,可以根据实际需要进行人为的控制,同时,可以施加化学、物理、生物等因素作为条件而进行实验观察,这些因素同样可以处于严格控制之下。
3.研究的样本可以达到比较均一性
通过细胞培养一定代数后,所得到的细胞系则可以达到均一性而属于同一类型的细胞,需要时,可采用克隆化等方法使细胞达到纯化。
4.研究内容便于观察、检测和记录
采用各种研究技术:如倒置生物显微镜、荧光显微镜、电子显微镜、流式细胞术、激光共焦显微镜、组织化学、原位杂交、同位素标记等各种仪器设备。
培养操作:
1)复苏细胞:将含有 1mL 细胞悬液的冻存管在 37℃水浴中迅速摇晃解冻,加 入 4mL 培养基混合均 匀。在 1000RPM 条件下离心 4 分钟,弃去上清液,补 加 1-2mL 培养基后吹匀。然后将所有细胞悬液加入培养瓶中培 养过夜(或将 细胞悬液加入 10cm 皿中,加入约 8ml 培养基,培养过夜)。天换液并 检查细胞密度。
2)细胞传代:如果细胞密度达 80%-90%,即可进行传代培养。
1. 弃去培养上清,用不含钙、镁离子的 PBS 润洗细胞 1-2 次。
2. 加 1ml 消化液(0.25%Trypsin-0.53mM EDTA)于培养瓶中,置于 37℃培 养箱中消化 1-2 分钟,然后在显微镜下观察细胞消化情况,若细胞大部分 变圆并脱落,迅速拿回操作台,轻敲几下培养 瓶后加少量培养基终止消 化。
3. 按 6-8ml/瓶补加培养基,轻轻打匀后吸出,在 1000RPM 条件下离心 4 分 钟,弃去上清液,补加 1-2mL 培养液后吹匀。
4. 将细胞悬液按 1:2 比例分到新的含 8ml 培养基的新皿中或者瓶中。
3)细胞冻存:待细胞生长状态良好时,可进行细胞冻存。下面 T25 瓶为类;
1. 细胞冻存时,弃去培养基后,PBS 清洗一遍后加入 1ml 胰酶,细胞变圆 脱 落后,加入 1ml 含血清的培养基终止消化,可使用血球计数板计数。
2. 4 min 1000rpm 离心去掉上清。加 1ml 血清重悬细胞,根据细胞数量加入血清和 DMSO,轻轻混匀,DMSO 终浓度为 10%,细胞密度不低于1x106/ml,每支冻存管冻存 1ml 细胞悬液,注意冻 存管做好标识。
3. 将冻存管置于程序降温盒中,放入-80 度冰箱,2 个小时以后转入液氮灌储存。记录冻存管位置以便下次拿取.
研究领域 肿瘤 **学 转录调节因子
蛋白分子量 predicted molecular weight: 25kDa
性 状 Lyophilized or Liquid
免 疫 原 KLH conjugated synthetic peptide derived from human OPRS1
亚 型 IgG
纯化方法 affinity purified by Protein A
储 存 液 0.01M PBS, pH 7.4 with 10 mg/ml BSA and 0.1% Sodium azide
产品应用 WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1:100-500 ICC=1:100-500 IF=1:100-500
(石蜡切片需做抗原修复)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
保存条件 Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
Important Note This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍 OPRS1 and its agonists are implicated in a variety of cellular functions, biological processes and diseases, including cancer biology, psychosis, regulation of neurotransmitter function, motor, endocrine and immune systems. Two sigma receptors, -1 and -2 are presently known and classified based on their ability to bind a variety of ligands. The sigma-1 receptor interacts with a variety of psychotomimetic drugs, including cocaine and amphetamines. It is distinct from any known receptor class and lacks significant homology to known mammalian proteins but possesses some homology with fungal sterol isomerases. The predicted structure of this 25 kDa protein depicts two transmembrane domains with both N- and C-terminal tails residing in the cytoplasm.
Function : Functions in lipid transport from the endoplasmic reticulum and is involved in a wide array of cellular functions probably through regulation of the biogenesis of lipid microdomains at the plasma membrane. Involved in the regulation of different receptors it plays a role in BDNF signaling and EGF signaling. Also regulates ion channels like the potassium channel and could modulate neurotransmitter release. Plays a role in calcium signaling through modulation together with ANK2 of the ITP3R-dependent calcium efflux at the endoplasmic reticulum. Plays a role in several other cell functions including proliferation, survival and death. Originally identified for its ability to bind various psychoactive drugs it is involved in learning processes, memory and mood alteration.
Subunit : Forms a ternary complex with ANK2 and ITPR3. The complex is disrupted by agonists. Interacts with KCNA4.
Subcellular Location : Nucleus inner membrane. Nucleus outer membrane. Endoplasmic reticulum membrane. Lipid droplet. Cell junction. Cell membrane. Cell projection, growth cone. Note=Targeted to lipid droplets, cholesterol and galactosylceramide-enriched domains of the endoplasmic reticulum. Enriched at cell-cell communication regions, growth cone and postsynaptic structures. Localization is modulated by ligand-binding.
Tissue Specificity : Widely expressed with higher expression in liver, colon, prostate, placenta, small intestine, heart and pancreas. Expressed in the retina by retinal pigment epithelial cells.
大鼠胸腺成纤维细胞CD163分子检测试剂盒3-氯酚 分析标准品三乙烯四 AR,70%
CD20分子检测试剂盒皮质甾酮 98%四乙烯五 95%
CD28分子检测试剂盒硫化亚铜 99%四乙烯五 CP,90.0%
CD30分子检测试剂盒天青石蓝 97%邻甲酚 99%
CD38分子检测试剂盒α-氯糖 98%,anomer ca 15%对甲酚 98%
CD3分子检测试剂盒 分析标准品对甲酚 99%
CD40分子检测试剂盒屈 分析标准品对甲酚 Standard for GC,≥99.7% (GC)
细胞处理方法:
以下细胞处理方法及细胞说明书仅供参考,具体操作还需要根据到货时细胞密度,细胞生长状态等具体情况,酌情处理,如需要更详细技术指导。
一.贴壁细胞
客户接收到细胞,用75%的酒精(建议配制75%酒精的水是过的)培养瓶外部。
肉眼观察细胞培养基颜色,显微镜观察细胞生长情况,并对细胞进行不同倍数拍照(建议收到时的培养瓶拍一张照片,显微镜拍收到时的细胞100X ,200X 各一张)。
显微镜观察细胞,当细胞融汇至80%左右(可以传代的情况下),细胞应该在37度培养箱预温1-2h后再做处理。如��达到细胞传代密度,培养瓶应预留一部分培养基继续培养。
严格无菌操作,打开细胞培养瓶。
将细胞培养瓶内的培养基用吸管完全吸出(严禁直接倾倒),放入另一无菌容器中(建议换新的培养基培养细胞)。
用PBS 2-3ml/次轻轻洗细胞表面,加入适量的0.05%胰酶-EDTA消化细胞,显微镜下观察细胞变圆,轻轻拍打培养瓶直到细胞脱落,加入终止液终止。1000rpm,5min离心,重悬细胞。换新的细胞培养瓶,37℃,5%CO2 培养。
二.悬浮细胞
1. 接收到细胞,用75%的酒精(建议配制75%酒精的水是过的)培养瓶外部。
2. 肉眼观察细胞培养基颜色,显微镜观察细胞生长情况,并对细胞进行不同倍数拍照(建议收到时的培养瓶拍一张照片,显微镜拍收到时的细胞100X ,200X 各一张)。
3. 严格无菌操作,打开细胞培养瓶。
4. 将细胞培养瓶内的培养基用吸管完全吸出(严禁直接倾倒)。
5. 1000rpm,5min离心,重悬细胞。 换新的细胞培养瓶和新鲜培养基,37℃,5%CO2培养。