Intestinal Lymph Transport
Intestinal Lymph Transport - Related Videos
13:17
The Mesenteric Lymph Duct Cannulated Rat Model: Application to the Assessment of Intestinal Lymphatic Drug Transport
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Cited by 48 •
2015
Here we describe a technique to cannulate the mesenteric lymph duct in rats which enables quantification of lipid and drug transport via the lymphatic system following intestinal delivery. The technique can be adapted to assess mesenteric lymph concentrations and/or transport of fluid, immune cells, peptides, proteins and lipophilic molecules.
06:25
Long-Term Catheterization of the Intestinal Lymph Trunk and Collection of Lymph in Neonatal Pigs
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Cited by 6 •
2016
We present a surgical procedure to catheterize the intestinal lymph trunk in neonatal pigs to collect large quantities of lipid metabolism components from efferent lymph.
01:16
Lymphatic Vessels and Lymph Transport
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2024
Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells. This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular spaces.
07:00
Using Caco-2 Cells to Study Lipid Transport by the Intestine
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Cited by 11 •
2015
Caco-2 cells can serve as an in vitro model to study the enterocyte transport of lipids, and lipid-soluble drugs/vitamins. The permeable membrane system separates the apical from the basolateral compartment, while the lentivirus expression system offers an effective gene overexpression method. The isolation of lipoproteins is confirmed by TEM.
04:55
Mesenteric Lymph Duct Cannulation in a Rat Model to Harvest Lymph Fluid
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2025
This video demonstrates a technique to cannulate the mesenteric lymph duct in rats. This method enables direct access to the entire volume of components present in the lymph fluid.
FAQs
Lacteals create a specialized entry point for dietary lipids within intestinal tissue. After absorption, lipids are packaged as chylomicrons, allowing them to enter lymph rather than remaining as unprocessed dietary material. This makes lacteal activity central to the connection between a meal and downstream lipid transport through the lymphatic system.
Movement depends on coordinated vessel contractions together with pressure generated by surrounding intestinal tissue. These forces help propel fluid, lipids, immune cells, and absorbed molecules away from smaller lymphatic channels toward larger lymphatic ducts. Studying both mechanisms is important because transport depends on active vessel behavior and the mechanical environment around the vessels.
The intestinal lymphatic pathway carries antigen-presenting cells and lymphocytes from gut tissue toward immune organs. In those sites, the transported cells can support surveillance and responses involving intestinal microbes. This connection makes lymph flow relevant to immunology and infection because it links local exposure in the gut with immune activity beyond the immediate intestinal tissue.
Their movement extends the immune reach of the intestine. Antigen-presenting cells and lymphocytes travel from gut tissue through lymphatic pathways to immune organs, where they contribute to surveillance and responses to intestinal microbes. Consequently, changes in this cellular traffic could influence how intestinal immune information is communicated and acted upon.
A useful sequence begins with dietary lipid uptake by lacteals, followed by packaging into chylomicrons and movement through lymphatic vessels. Vessel contractions and surrounding tissue pressure then propel the contents toward larger ducts. In parallel, immune cells and other absorbed molecules provide additional cargoes to examine when evaluating the full transport process.
The pathway provides a framework for examining how intestinal transport relates to inflammatory disease and responses to microbes. It also supports research into delivering drugs or vaccines through the gut, because lymph carries absorbed molecules and immune cells beyond intestinal tissue. These applications connect nutrient-handling pathways with therapeutic and immunological goals.