Related Experiment Video
Updated: Jun 25, 2026
07:20
Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
Analyzing macroautophagy in hepatocytes and the liver
1Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
Methods in Enzymology
|February 17, 2009
Summary
Autophagy, a cellular process, is vital for liver health and disease. This chapter details methods to analyze autophagy in liver cells and the whole liver.
Area of Science:
- Cellular Biology
- Hepatology
- Physiology
Background:
- Autophagy is a fundamental cellular process involving the degradation of damaged components.
- It is well-understood in mammalian liver cells (hepatocytes) and plays critical roles in liver physiology.
- Dysregulation of autophagy is implicated in the development of various liver diseases.
Purpose of the Study:
- To provide a comprehensive overview of autophagy in the liver.
- To discuss established and commonly utilized methodologies for assessing autophagy.
- To cover methods applicable to both isolated hepatocytes and the intact liver.
Main Methods:
- Analysis of autophagic flux using specific markers.
- Microscopic techniques for visualizing autophagosomes.
- Biochemical assays to quantify autophagic activity in liver tissue and cells.
Main Results:
- The chapter outlines key techniques for measuring autophagy.
- It highlights the importance of selecting appropriate methods based on experimental context.
- Methods discussed allow for quantitative and qualitative assessment of autophagy.
Conclusions:
- Understanding autophagy in the liver is crucial for both normal function and disease.
- Standardized and validated methods are essential for accurate autophagy analysis.
- This chapter serves as a guide for researchers studying liver autophagy.
Related Concept Videos
01:27Autophagy
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
01:36Delivery Pathways to the Lysosome
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
01:18Autophagic Cell Death
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
01:27Liver Histology
The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
Hepatocytes perform a variety of essential functions. They secrete...
Hepatocytes perform a variety of essential functions. They secrete...
01:22Cellular Injury V: Apoptosis and Autophagy
Cells respond to damage and stress through highly coordinated processes that decide whether they survive or undergo controlled self-destruction. Two major pathways involved in this regulation are apoptosis, a type of programmed cell death, and autophagy, a survival mechanism that helps cells adapt to adverse conditions.ApoptosisApoptosis removes aged or injured cells to maintain tissue balance. During this process, the cell shrinks, chromatin condenses and fragments, and membrane-bound...