Liver Sinusoidal Endothelial Cells
Liver Sinusoidal Endothelial Cells - Related Videos
08:38
A Standardized Method for the Analysis of Liver Sinusoidal Endothelial Cells and Their Fenestrations by Scanning Electron Microscopy
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Cited by 41 •
2015
The fenestrated liver sinusoidal endothelial cell is a biologically important filter system that is highly influenced by various diseases, toxins, and physiological states. These changes significantly impact on liver function. We describe methods for the standardisation of the measurement of the size and number of fenestrations in these cells.
08:22
Isolation and Characterization of Mouse Primary Liver Sinusoidal Endothelial Cells
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Cited by 6 •
2021
Here we outline and demonstrate a protocol for primary mouse liver sinusoidal endothelial cell (LSEC) isolation. The protocol is based on liver collagenase perfusion, nonparenchymal cell purification by low-speed centrifugation, and CD146 magnetic bead selection. We also phenotype and characterize these isolated LSECs using flow cytometry and scanning electron microscopy.
08:54
Purification of Hepatocytes and Sinusoidal Endothelial Cells from Mouse Liver Perfusion
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Cited by 74 •
2018
The goal of this protocol is to obtain high viability and high yield of hepatocytes and sinusoidal endothelial cells from liver. This is accomplished by perfusing the liver with a type IV collagenase solution via the portal vein, followed by differential centrifugation to obtain hepatocytes and sinusoidal endothelial cells.
12:35
In vivo Liver Endocytosis Followed by Purification of Liver Cells by Liver Perfusion
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Cited by 14 •
2011
The study of liver sinusoidal endothelial cells (SECs) must be performed with primary cells obtained from the animal as no cell lines exist. This method relies on liver digestion and differential centrifugation for SEC purification for subsequent culturing and experimentation.
11:38
A Flow Adhesion Assay to Study Leucocyte Recruitment to Human Hepatic Sinusoidal Endothelium Under Conditions of Shear Stress
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Cited by 31 •
2014
Leucocyte recruitment to the liver occurs within the specialized channels of the hepatic sinusoids which are lined by unique hepatic sinusoidal endothelial cells. Phase contrast microscopy of leucocyte recruitment across human hepatic sinusoidal endothelium under conditions of physiological shear stress can facilitate the elucidation of the molecular mechanisms which underlie this process.
FAQs
Fenestrae create openings in sinusoidal endothelial cells, while the absence of a continuous basement membrane removes another structural barrier. Together, these features permit plasma and small molecules to pass toward hepatocytes while restricting larger components. This arrangement positions hepatocytes to receive blood-derived substances while preserving selective exchange. Studying changes in fenestrae or membrane continuity helps explain altered blood-tissue exchange.
Liver sinusoidal endothelial cells help remove circulating macromolecules from blood, giving them an active role in hepatic clearance. This activity complements their regulation of exchange across the sinusoidal interface and distinguishes them from cells considered only structural vessel linings. In biology research, it provides a basis for examining how the liver processes material arriving through the circulation.
Communication with hepatocytes, Kupffer cells, and hepatic stellate cells places these endothelial cells within a multicellular regulatory network. Signals exchanged among these populations can link vascular exchange to liver tissue responses, including inflammation and fibrosis. Because injury changes endothelial behavior, examining these interactions helps researchers interpret disease-related changes as coordinated cellular processes rather than isolated endothelial defects.
The absence of a continuous basement membrane, together with fenestrae, makes the sinusoidal interface more permeable than typical vascular endothelium. Functionally, that architecture supports access of plasma and small molecules to hepatocytes while still restricting larger components. This comparison is important when biology studies ask why liver blood-tissue exchange differs from exchange in ordinary vessels.
Liver sinusoidal endothelial cells are relevant to studies of liver development, metabolism, inflammation, fibrosis, and drug-induced liver disease. Their permeability, clearance activity, blood-flow regulation, and communication with neighboring liver cells connect them to several levels of biology. Selecting among these contexts allows a study to relate endothelial structure and behavior to a specific hepatic process.
Injury-focused studies can examine how changes in these cells affect permeability, removal of circulating macromolecules, hepatic blood-flow regulation, and communication with hepatocytes, Kupffer cells, or stellate cells. Such observations may clarify links between endothelial responses and fibrosis, inflammation, or drug-induced liver disease. The same framework also supports investigation of normal versus altered liver function.