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Lymphatic endothelial cells promote T lymphocyte migration into lymph nodes under hyperlipidemic conditions
- Title
- Lymphatic endothelial cells promote T lymphocyte migration into lymph nodes under hyperlipidemic conditions
- Authors
- Park, Minhwa; Cho, Kyung-Ah; Kim, Yu-Hee; Lee, Kyung Ho; Woo, So-Youn
- Ewha Authors
- 우소연; 김유희; 조경아
- SCOPUS Author ID
- 우소연; 김유희; 조경아
- Issue Date
- 2020
- Journal Title
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
- ISSN
- 0006-291X
1090-2104
- Citation
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS vol. 525, no. 3, pp. 786 - 792
- Keywords
- Hyperlipidemia; Lymphatic endothelial cells; Chemokine; T cell migration
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Lymphatic vessels serve as conduits through which immune cells traffic. Because lymphatic vessels are also involved in lipid transport, their function is vulnerable to abnormal metabolic conditions such as obesity and hyperlipidemia. Exactly how these conditions impact immune cell trafficking, however, is not well understood. Here, we found higher numbers of LYVE-1-positive lymphatic endothelial cells and CD3-positive T cells in the lymph nodes of mice fed high-cholesterol or high-fat diets compared with those of mice fed a normal chow diet. To confirm the effect of fat content on immune cell trafficking, the lymphatic endothelial SVEC4-10 cell line was treated with palmitic acid at a 100 mu M concentration. After 24 h, palmitic acid-treated cells exhibited increased expression of podoplanin and vascular growth-associated molecules (VEGFC, VEGFD, VEGFR3, and NRP2) and enhanced tube formation. Microarray analysis showed an increase in pro-inflammatory cytokine and chemokine transcription after palmitic acid treatment. Finally, transwell migration assay confirmed that T cell line moved toward medium previously cultured with palmitic acid-treated SVEC4-10 cells. Together, our results suggest that hyperlipidemia drives lymphatic vessel remodeling and T cell migration toward lymphatic endothelial cells. (C) 2020 Elsevier Inc. All rights reserved.
- DOI
- 10.1016/j.bbrc.2020.02.154
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
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