학술논문

Blocking Lymph Flow by Suturing Afferent Lymphatic Vessels in Mice
Document Type
research-article
Author
Yujia Lin, author; Jingna Xue, author; Shan Liao, author
Source
Journal of Visualized Experiments. (159)
Subject
Immunology and Infection
Issue 159
Lymphatic vessel
Lymph node
Lymph flow
Antigen delivery
High endothelial venules
Language
English
ISSN
1940-087X
Abstract
Lymphatic vessels are critical in maintaining tissue fluid balance and optimizing immune protection by transporting antigens, cytokines, and cells to draining lymph nodes (LNs). Interruption of lymph flow is an important method when studying the function of lymphatic vessels. The afferent lymphatic vessels from the murine footpad to the popliteal lymph nodes (pLNs) are well-defined as the only routes for lymph drainage into the pLNs. Suturing these afferent lymphatic vessels can selectively prevent lymph flow to the pLNs. This method allows for interference in lymph flow with minimal damage to the lymphatic endothelial cells in the draining pLN, the afferent lymphatic vessels, as well as other lymphatic vessels around the area. This method has been used to study how lymph impacts high endothelial venules (HEV) and chemokine expression in the LN, and how lymph flows through the adipose tissue surrounding the LN in the absence of functional lymphatic vessels. With the growing recognition of the importance of lymphatic function, this method will have broader applications to further unravel the function of lymphatic vessels in regulating the LN microenvironment and immune responses.