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AB236212

Cholesterol Uptake Assay Kit

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(7 Publications)

Cholesterol Uptake Assay Kit (ab236212) provides a convenient tool for studying cellular cholesterol trafficking.
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Functional Studies - Cholesterol Uptake Assay Kit (AB236212)
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Supplier Data

Functional Studies - Cholesterol Uptake Assay Kit (AB236212)

U-18666A causes a dose-dependent increase in NBD Cholesterol uptake in Caco-2 cells, as measured on a fluorescent plate reader

Functional Studies - Cholesterol Uptake Assay Kit (AB236212)
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Supplier Data

Functional Studies - Cholesterol Uptake Assay Kit (AB236212)

U-18666A increases cholesterol uptake in Jurkat cells as measured by flow cytometry.

Jurkat cells were seeded at a density of 5x105 cells/mL and incubated overnight in serum-free RPMI with U-18666A or vehicle and 20 μg/mL NBD Cholesterol in a cell culture incubator at 37°C. The next day, cells were transferred to a v-bottom plate for washing and reading on a flow cytometer. Cholesterol uptake was evaluated in the live cell gate using FlowJo analysis software. U-18666A at both 2.5 μM (green) and 1.25 μM (blue) showed a significant (p<0.05, t-test) shift in mean fluorescence as compared to the vehicle control (black) and the untreated (red) cells.

Functional Studies - Cholesterol Uptake Assay Kit (AB236212)
  • FuncS

Supplier Data

Functional Studies - Cholesterol Uptake Assay Kit (AB236212)

Blocking intracellular cholesterol transport with U-18666A increases NBD cholesterol uptake

Key facts

Detection method

Fluorescent

Sample types

Suspension cells, Adherent cells

Assay Platform

Microplate reader, Fluor. microscope, Flow cyt.

Product details

Cholesterol Uptake Assay Kit (ab236212) provides a convenient tool for studying cellular cholesterol trafficking. The kit employs NBD Cholesterol, a fluorescently-tagged cholesterol, as a probe for the detection of cholesterol taken up by cultured cells. U-18666A, which increases cholesterol uptake by inhibiting trafficking of synthesized cholesterol, is included as a positive control. The kit provides enough NBD Cholesterol to test 250 samples in a 96-well format.

Other cholesterol assay kits include:
- HDL and LDL/VLDL Cholesterol assay kit ab65390
- Cell-based Cholesterol assay kit ab133116
- Cholesterol/Cholesterol Ester assay kit ab65359
- Cholesterol Efflux assay kit ab196985

What's included?

{ "values": { "1Kit": { "sellingSize": "1 Kit", "publicAssetCode":"ab236212-1Kit", "assetComponentDetails": [ { "size":"1 x 100 µL", "name":"Cell-Based Assay U-18666A", "number":"AB236212-CMP03", "productcode":"" }, { "size":"1 x 500 µL", "name":"Cell-Based Assay NBD Cholesterol", "number":"AB236212-CMP02", "productcode":"" }, { "size":"1 x 1 Tablet", "name":"Cell-Based Assay Buffer Tablet", "number":"AB236212-CMP01", "productcode":"" } ] } } }

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
Multi
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Cholesterol Uptake also referred to as cholesterol absorption involves key proteins like Niemann-Pick C1-Like 1 (NPC1L1). NPC1L1 is an important mediator of cholesterol transport across the intestinal epithelial cells. The protein has an approximate molecular weight of 145 kDa and is primarily expressed in the epithelial cells of the small intestine and in the liver. Its expression is regulated by various factors including dietary cholesterol levels which influences how it mediates cholesterol uptake into cells.
Biological function summary

Cholesterol uptake plays a significant role in maintaining cellular cholesterol homeostasis. The process involves NPC1L1 working as part of a larger macromolecular complex with other proteins like clathrin and adaptor protein 2 (AP2) which facilitate endocytosis of cholesterol into enterocytes. These interactions occur in the brush border of the intestinal lumen allowing for cholesterol to be transported and re-esterified into chylomicrons which then enter lymphatic circulation.

Pathways

Cholesterol uptake is a critical component of cholesterol metabolism and homeostasis. It is specifically involved in the reverse cholesterol transport pathway which manages the movement of cholesterol from peripheral tissues back to the liver. Within this pathway NPC1L1 interacts with other proteins such as apolipoprotein B48 (ApoB48) to facilitate the formation of chylomicrons that transport cholesterol. Another pathway influenced by cholesterol uptake is the bile acid synthesis pathway where excess cholesterol is converted to bile acids.

Cholesterol uptake is connected to hypercholesterolemia and cardiovascular disease. Altered function or expression of NPC1L1 can result in variations in cholesterol levels potentially leading to the buildup of cholesterol in the bloodstream. This accumulation is a risk factor for cardiovascular diseases like atherosclerosis. Moreover inhibitors of NPC1L1 such as ezetimibe are used therapeutically to manage high cholesterol levels and prevent associated cardiovascular risks by decreasing intestinal cholesterol absorption.

Product protocols

Publications (7)

Recent publications for all applications. Explore the full list and refine your search

Histology and histopathology 40:697-710 PubMed39359170

2024

Tetrahydropalmatine promotes macrophage autophagy by inhibiting the AMPK/mTOR pathway to attenuate atherosclerosis.

Applications

Unspecified application

Species

Unspecified reactive species

Hui Wang,Ke Ding,Jiaqi He,Jiahong Wang

Frontiers in endocrinology 15:1398462 PubMed38957441

2024

Cannabidiol promotes intestinal cholesterol uptake mediated by Pregnane X receptor.

Applications

Unspecified application

Species

Unspecified reactive species

Conner Brown,Wangeci Kariuki,Haizhen A Zhong,Audra Kippes,Yipeng Sui

EMBO molecular medicine 14:e15344 PubMed35191199

2022

Intercepting IRE1 kinase-FMRP signaling prevents atherosclerosis progression.

Applications

Unspecified application

Species

Unspecified reactive species

Zehra Yildirim,Sabyasachi Baboo,Syed M Hamid,Asli E Dogan,Ozlem Tufanli,Sabrina Robichaud,Christina Emerton,Jolene K Diedrich,Hasan Vatandaslar,Fotis Nikolos,Yanghong Gu,Takao Iwawaki,Elizabeth Tarling,Mireille Ouimet,David L Nelson,John R Yates,Peter Walter,Ebru Erbay

Acta biochimica et biophysica Sinica 54:220-231 PubMed35130611

2022

Overexpression CPT1A reduces lipid accumulation via PPARα/CD36 axis to suppress the cell proliferation in ccRCC.

Applications

Unspecified application

Species

Unspecified reactive species

Hui Yang,Hongbo Zhao,Zhongkun Ren,Xiaojia Yi,Qiao Zhang,Zhe Yang,Yingmin Kuang,Yuechun Zhu

Life science alliance 5: PubMed34983824

2022

Necrotic debris and STING exert therapeutically relevant effects on tumor cholesterol homeostasis.

Applications

Unspecified application

Species

Unspecified reactive species

Sampath Katakam,Santosh Anand,Patricia Martin,Nicolo Riggi,Ivan Stamenkovic

Journal of cell science 133: PubMed32694168

2020

TMEM147 interacts with lamin B receptor, regulates its localization and levels, and affects cholesterol homeostasis.

Applications

Unspecified application

Species

Unspecified reactive species

Andri Christodoulou,Giannis Maimaris,Andri Makrigiorgi,Evelina Charidemou,Christian Lüchtenborg,Antonis Ververis,Renos Georgiou,Carsten W Lederer,Christof Haffner,Britta Brügger,Niovi Santama

Human molecular genetics 29:1700-1715 PubMed32391547

2020

Lowe syndrome patient cells display mTOR- and RhoGTPase-dependent phenotypes alleviated by rapamycin and statins.

Applications

Unspecified application

Species

Unspecified reactive species

Kayalvizhi Madhivanan,Swetha Ramadesikan,Wen-Chieh Hsieh,Mariana C Aguilar,Claudia B Hanna,Robert L Bacallao,R Claudio Aguilar
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