製品の概要

  • 製品名
    Cholesterol Assay Kit (Cell-Based)
    Cholesterol キット 製品一覧
  • 検出方法
    Fluorescent
  • サンプルの種類
    Adherent cells
  • アッセイタイプ
    Cell-based
  • 全工程の試験時間
    1h 15m
  • 種交差性
    交差種: Mammals, Other species
  • 製品の概要

    Cholesterol Assay Kit (Cell-Based) (ab133116) includes filipin III, fixative, and wash buffer in a ready to use format. It provides a simple fluorometric method to study mechanisms and biological factors that regulate cholesterol metabolism or movement within cells. A cholesterol trafficking inhibitor, U-18666A, is included as a positive control.


    Cholesterol assay protocol summary:
    - remove medium from cells
    - fix with fixative solution for 10 min
    - wash with wash buffer 3 times for 5 min
    - add Filipin III solution and incubate for 30-60 min
    - wash twice for 5 min
    - analyze with fluorescent microscope

  • 特記事項

    Cholesterol is both an important structural component of cell membranes and an early intermediate in hormone and bile acid biosynthesis. Cholesterol is not uniformly distributed among cellular membranes /  organelle membranes, but rather there are structurally and kinetically distinct cholesterol rich and poor domains.

    Filipin III is the predominant isomer of filipin, the collective name given to four isomeric polyene macrolides isolated from cultures of S. filipinensis. Filipin is widely used as a probe for sterol location in biological membranes.

    Interaction with cholesterol alters the filipin absorption and fluorescence spectra allowing visualization with a fluorescence microscope capable of excitation at 340-380 nm and emission at 385-470 nm. Filipin’s ease of use makes it a convenient tool for the histochemical identification of unesterified cholesterol both in vitro and in vivo.

    Other cholesterol assay kits include:
    HDL and LDL/VLDL Cholesterol assay kit ab65390 
    Cholesterol/Cholesterol Ester assay kit ab65359 
    Cholesterol Efflux assay kit ab196985 
    Cholesterol Uptake assay kit ab236212

  • 試験プラットフォーム
    Fluorescence microscope

製品の特性

画像

  • HepG2 cells in response to 2 µM U-18666A.
    HepG2 cells were seeded in a 96-well plate at a density of 2.4 x 104 cells/well and cultured overnight. The next day, cells were treated with 2 µM U-18666A for 48 hours. U-18666A treatment for 48 hours induces intracellular accumulation.

  • HepG2 cells in response to 1 µM U-18666A.
    HepG2 cells were seeded in a 96-well plate at a density of 2.4 x 104 cells/well and cultured overnight. The next day, cells were treated with 1 µM U-18666A for 48 hours. U-18666A treatment for 48 hours induces intracellular accumulation.

     

  • HepG2 cells in response to 0.5 µM U-18666A.
    HepG2 cells were seeded in a 96-well plate at a density of 2.4 x 104 cells/well and cultured overnight. The next day, cells were treated with 0.5 µM U-18666A for 48 hours. U-18666A treatment for 48 hours induces intracellular accumulation.

  • HepG2 cells in response to 0.25 µM U-18666A.
    HepG2 cells were seeded in a 96-well plate at a density of 2.4 x 104 cells/well and cultured overnight. The next day, cells were treated with 0.25 µM U-18666A for 48 hours. U-18666A treatment for 48 hours induces intracellular accumulation.

     

  • Accumulation of cholesterol inside HepG2 cells - Control.
    HepG2 cells were seeded in a 96-well plate at a density of 2.4 x 104 cells/well and cultured overnight. The next day, cells were treated with DMSO (vehicle) for 48 hours. Cells demonstrate that majority of cholesterol is localized on the plasma membrane.

  • Accumulation of cholesterol inside HepG2 cells in response to 1.25 µM U-18666A.
    HepG2 cells were seeded in a 96-well plate at a density of 3 x 104 cells/well and cultured overnight. The next day, cells were treated with DMSO (vehicle) or 1.25 µM U-18666A for 48 hours. Panel A: Cells treated with DMSO alone demonstrate that majority of cholesterol is localized on the plasma membrane. Panel B: U-18666A treatment for 48 hours induces intracellular accumulation.

プロトコール

参考文献

This product has been referenced in:
  • Li K  et al. A dual role of cholesterol in osteogenic differentiation of bone marrow stromal cells. J Cell Physiol 234:2058-2066 (2019). Read more (PubMed: 30317648) »
  • Kumar M  et al. Depletion of membrane cholesterol compromised caspase-8 imparts in autophagy induction and inhibition of cell migration in cancer cells. Cancer Cell Int 18:23 (2018). Read more (PubMed: 29467593) »
See all 4 Publications for this product

レビューと Q&A

Abreviews
Cells were seeded in 96-well plate and cultured for 36h. Experiment has been performed by Julie Gamart, PhD.

Dr. Julie Gamart

Verified customer

投稿 Apr 17 2018

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