Article (Scientific journals)
Podoplanin-Expressing Macrophages Promote Lymphangiogenesis and Lymphoinvasion in Breast Cancer.
Bieniasz-Krzywiec, Pawel; Martin-Perez, Rosa; Ehling, Manuel et al.
2019In Cell Metabolism
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Keywords :
breast cancer; lymph nodes; lymphangiogenesis; lymphoinvasion; metastasis; podoplanin; tumor-associated macrophages
Abstract :
[en] Among mammary tumor-infiltrating immune cells, the highest expression of podoplanin (PDPN) is found in a subset of tumor-associated macrophages (TAMs). We hereby demonstrate that PDPN is involved in the attachment of this TAM subset to lymphatic endothelial cells (LECs). Mechanistically, the binding of PDPN to LEC-derived galectin 8 (GAL8) in a glycosylation-dependent manner promotes the activation of pro-migratory integrin beta1. When proximal to lymphatics, PDPN-expressing macrophages (PoEMs) stimulate local matrix remodeling and promote vessel growth and lymphoinvasion. Anti-integrin beta1 blockade, macrophage-specific Pdpn knockout, or GAL8 inhibition impairs TAM adhesion to LECs, restraining lymphangiogenesis and reducing lymphatic cancer spread. In breast cancer patients, association of PoEMs with tumor lymphatic vessels correlates with incidences of lymph node and distant organ metastasis.
Disciplines :
Oncology
Author, co-author :
Bieniasz-Krzywiec, Pawel
Martin-Perez, Rosa
Ehling, Manuel
Garcia-Caballero, Melissa
Pinioti, Sotiria
Pretto, Samantha
Kroes, Roel
Aldeni, Chiara
Di Matteo, Mario
Prenen, Hans
Tribulatti, Maria Virginia
Campetella, Oscar
Smeets, Ann
Noël, Agnès ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Floris, Giuseppe
Van Ginderachter, Jo A.
Mazzone, Massimiliano
More authors (7 more) Less
Language :
English
Title :
Podoplanin-Expressing Macrophages Promote Lymphangiogenesis and Lymphoinvasion in Breast Cancer.
Publication date :
2019
Journal title :
Cell Metabolism
ISSN :
1550-4131
eISSN :
1932-7420
Publisher :
Cell Press, United States
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2019 Elsevier Inc. All rights reserved.
Available on ORBi :
since 03 September 2019

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