ArticleJournal of hepato-biliary-pancreatic sciences2025
Integrated gross and microanatomical analysis of the periportal lymphatic system in human liver.
Article in Journal of hepato-biliary-pancreatic sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Integrated gross and microanatomical analysis of the periportal lymphatic system in human liver.Journal of hepato-biliary-pancreatic sciences · 2025Article
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10 authors.
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Abstract
backgroundAlthough animal studies have indicated that the periportal lymphatic system is an important intrahepatic lymphatic route, detailed human studies are scarce. We studied the lymphatic pathways and dynamics around Glisson's capsule in human livers.
methodsWe performed whole-mount immunostaining for the liver using podoplanin and CD-31 to elucidate the lymphatic vessel distribution around the hepatic triad (HT). Next, 5 mL of India ink was injected into the liver parenchyma to observe the lymph fluid dynamics around Glisson's capsule. Lastly, immunohistochemical staining for CCL21, a chemokine important for lymphocyte migration, and its receptor CCR7 was performed to observe the lymphocyte dynamics within Glisson's capsule.
resultsLymphatic vessels with blind-ended structures were observed around the peripheral HT. These vessels ran longitudinally, forming a network with numerous blind ends around HT. Ink distribution was observed within gaps and capillary lymphatic vessels in Glisson's capsule. These gaps were CCL21-positive, and a concentration gradient was observed toward the capillary lymphatic vessels.
conclusionsThe intrahepatic lymphatic fluid enters the capillary lymphatic vessels via the extravascular pathway, and lymphocyte components enter the capillary lymphatic vessels through the CCR7/CCL21 transport system in the extravascular pathway. This is the first study to elucidate the human intrahepatic periportal lymphatic system.
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