Related Experiment Video
Updated: Jul 24, 2025
11:11
Adipocyte-Specific ATAC-Seq with Adipose Tissues Using Fluorescence-Activated Nucleus Sorting
Published on: March 17, 2023
2.3K
Measurement of ATGL activity using adiposomes
Xuejing Ma1,2,3, Zelun Zhi1, Shuyan Zhang1,4,5
1National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Biophysics Reports
|July 10, 2023
Summary
Adipose triacylglycerol lipase (ATGL) activity can now be accurately measured using adiposomes, novel lipid nanostructures that mimic cellular lipid droplets. This new method improves upon existing platforms for studying lipolysis and energy homeostasis.
Area of Science:
- Biochemistry
- Cell Biology
- Enzymology
Background:
- Adipose triacylglycerol lipase (ATGL) is crucial for cellular lipolysis and energy homeostasis.
- Current in vitro assays using lipid emulsions lack accuracy due to complex membranous structures.
- Accurate measurement of ATGL activity is essential for understanding lipid metabolism.
Purpose of the Study:
- To develop a novel platform for accurate in vitro measurement of ATGL enzymatic activity.
- To establish a reliable method for assessing lipase activity using lipid droplet mimetics.
- To provide a tool for identifying functional sites in lipases.
Main Methods:
- Adiposomes, artificial lipid nanostructures, were utilized as a platform.
- A new assay was developed to measure ATGL enzymatic activity using adiposomes.
- A detailed protocol for the adiposome-based ATGL activity assay is described.
Main Results:
- The adiposome platform accurately mimics cellular lipid droplets for lipase activity assays.
- The developed assay successfully measures ATGL enzymatic activity in vitro.
- This method demonstrates proof of concept for lipid droplet-mimetic platforms.
Conclusions:
- Adiposomes provide a superior platform for accurate in vitro ATGL activity measurement.
- The new assay offers a valuable tool for studying lipolysis and enzyme function.
- This research advances the understanding of cellular lipid and energy homeostasis.
