Bimodal Expansion of the Lymphatic Vessels Is Regulated by the Sequential Expression of IL-7 and Lymphotoxin α1β2 in Newly Formed Tertiary Lymphoid Structures.

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State: Public
Version: Final published version
Serval ID
serval:BIB_390335AE2228
Type
Article: article from journal or magazin.
Collection
Publications
Title
Bimodal Expansion of the Lymphatic Vessels Is Regulated by the Sequential Expression of IL-7 and Lymphotoxin α1β2 in Newly Formed Tertiary Lymphoid Structures.
Journal
Journal of immunology
Author(s)
Nayar S., Campos J., Chung M.M., Navarro-Núñez L., Chachlani M., Steinthal N., Gardner D.H., Rankin P., Cloake T., Caamaño J.H., McGettrick H.M., Watson S.P., Luther S., Buckley C.D., Barone F.
ISSN
1550-6606 (Electronic)
ISSN-L
0022-1767
Publication state
Published
Issued date
01/09/2016
Peer-reviewed
Oui
Volume
197
Number
5
Pages
1957-1967
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Lymphangiogenesis associated with tertiary lymphoid structure (TLS) has been reported in numerous studies. However, the kinetics and dynamic changes occurring to the lymphatic vascular network during TLS development have not been studied. Using a viral-induced, resolving model of TLS formation in the salivary glands of adult mice we demonstrate that the expansion of the lymphatic vascular network is tightly regulated. Lymphatic vessel expansion occurs in two distinct phases. The first wave of expansion is dependent on IL-7. The second phase, responsible for leukocyte exit from the glands, is regulated by lymphotoxin (LT)βR signaling. These findings, while highlighting the tight regulation of the lymphatic response to inflammation, suggest that targeting the LTα1β2/LTβR pathway in TLS-associated pathologies might impair a natural proresolving mechanism for lymphocyte exit from the tissues and account for the failure of therapeutic strategies that target these molecules in diseases such as rheumatoid arthritis.

Keywords
Animals, Gene Expression Regulation, Inflammation, Interleukin-7/genetics, Interleukin-7/immunology, Interleukin-7/metabolism, Lymphangiogenesis, Lymphatic Vessels/immunology, Lymphatic Vessels/metabolism, Lymphotoxin alpha1, beta2 Heterotrimer/genetics, Lymphotoxin alpha1, beta2 Heterotrimer/immunology, Lymphotoxin alpha1, beta2 Heterotrimer/metabolism, Mice, Salivary Glands/immunology, Signal Transduction/genetics, Signal Transduction/immunology, Tertiary Lymphoid Structures/immunology, Tertiary Lymphoid Structures/pathology
Pubmed
Web of science
Open Access
Yes
Create date
05/08/2016 15:23
Last modification date
20/08/2019 14:28
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