LDL攝取分析試劑盒 | LDL Uptake Assay Kit 貨號K436-100

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LDL Uptake Assay Kit (Cell-Based)
產品描述:低密度脂蛋白(Low-density lipoprotein , LDL)是一種大球形大分子,可作為“shuttle穿梭”,通過血液的水性環境將hydrophobic molecules疏水性分子(lipids脂質和cholesterol膽固醇)輸送到全身。 LDL顆粒由膽固醇酯 (cholesterol esters) 的疏水核心(與hydroxyl group羥基連接的long-chain fatty acids長鏈脂肪酸)和由含有510kDa蛋白質載脂蛋白B-100,各種磷脂 (phospholipids) 和非酯化膽固醇 (non-esterified cholesterol) 分子的兩親殼包圍的甘油三酯組成。 LDL通過特異性受體介導的內吞作用被細胞如肝細胞(hepatocytes) ,巨噬細胞(macrophages)和內皮細胞(endothelial cells)攝取。高水平的LDL與動脈炎症(arterial inflammation)有關,導致心血管疾病(CVD)如動脈粥樣硬化(arterial inflammation),缺血性中風(ischemic stroke) 和心肌梗塞(myocardial infarction)。 LDL顆粒可以通過發炎的血管內皮(vascular endothelial) 緊密連接遷移,在那裡它們被氧化並吸引循環的單核細胞 (monocytes) 。單核細胞(Monocytes differentiate)分化成活化的巨噬細胞(macrophages),其進一步積累LDL並變成泡沫細胞(foam cells),導致動脈壁增厚/瘢痕形成(arterial wall thickening/scaring)和纖維性脂肪斑塊的形成(fibrous fatty plaques)。目前的CVD預防療法 (CVD preventative therapies) 包括用他汀類藥物(statins)降低LDL,其通過抑制HMG-CoA還原酶來預防內源性膽固醇 (endogenous cholesterol) 的生物合成。然而,還研究了通過增加肝臟LDL再攝取來抑制巨噬細胞攝取LDL或增強LDL清除的藥物。 BioVision的LDL攝取分析試劑盒可測量各種細胞類型的受體介導的LDL攝取。該試劑盒包含fluorescent human LDL,具明亮高度光穩定的螢光團共價標記,當被細胞攝取時可以檢測到(Ex / Em = 488 / 523nm)。未標記的human LDL包含在試劑盒中,用於驗證特異性標記的LDL攝取。該試劑盒包含一整套足以進行100次反應的試劑和96孔polylysine塗層的黑色細胞培養板,具有薄的顯微鏡級透明底部份。
Cat # +Size | K436-100 |
Size | 100 assays |
Kit Summary | Easy-to-follow protocol for the measurement of LDL uptake in mammalian cell lines. |
Detection Method | Fluorometric (Ex/Em= 488/523 nm) |
Species Reactivity | All |
Applications | Screening and characterization of drugs or treatment conditions that inhibit or stimulate LDL uptake,Characterization of LDL uptake in different cell types. |
Features & Benefits | • Measure LDL uptake in different cell types • Non-Radioactive • Contains fluorescent human LDL • which is covalently-labeled with a bright • highly photostable fluorophore • Screen • study or characterize stimulators or inhibitors of LDL uptake |
Kit Components | • Flurophore-Labeled LDL (5 mg/ml) • Unlabeled LDL • Polylysine-Coated Cell Culture Plate • Uptake Assay Buffer |
Storage Conditions | -20°C |
Shipping Conditions | Gel Pack |
LDL攝取分析試劑盒(細胞) | OxLDL 氧化低密度脂蛋白檢測 | HDL高密度脂蛋白/ LDL低密度脂蛋白/非常低密度脂蛋白檢測試劑盒