Neuropilin-1 Is Expressed on Lymphoid Tissue Residing LTi-like Group 3 Innate Lymphoid Cells and Associated with Ectopic Lymphoid Aggregates.

Abstract : Here, we characterize a subset of ILC3s that express Neuropilin1 (NRP1) and are present in lymphoid tissues, but not in the peripheral blood or skin. NRP1(+) group 3 innate lymphoid cells (ILC3s) display in vitro lymphoid tissue inducer (LTi) activity. In agreement with this, NRP1(+) ILC3s are mainly located in proximity to high endothelial venules (HEVs) and express cell surface molecules involved in lymphocyte migration in secondary lymphoid tissues via HEVs. NRP1 was also expressed on mouse fetal LTi cells, indicating that NRP1 is a conserved marker for LTi cells. Human NRP1(+) ILC3s are primed cells because they express CD45RO and produce higher amounts of cytokines than NRP1(-) cells, which express CD45RA. The NRP1 ligand vascular endothelial growth factor A (VEGF-A) served as a chemotactic factor for NRP1(+) ILC3s. NRP1(+) ILC3s are present in lung tissues from smokers and patients with chronic obstructive pulmonary disease, suggesting a role in angiogenesis and/or the initiation of ectopic pulmonary lymphoid aggregates.
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01561086
Contributeur : Lnc - Université de Bourgogne <>
Soumis le : mercredi 12 juillet 2017 - 12:41:13
Dernière modification le : mercredi 10 janvier 2018 - 15:18:47

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Medya Mara Shikhagaie, Åsa K Björklund, Jenny Mjösberg, Jonas S Erjefält, Anne S Cornelissen, et al.. Neuropilin-1 Is Expressed on Lymphoid Tissue Residing LTi-like Group 3 Innate Lymphoid Cells and Associated with Ectopic Lymphoid Aggregates.. Cell Reports , Elsevier Inc, 2017, 18 (7), pp.1761-1773. 〈http://www.sciencedirect.com/science/article/pii/S2211124717301201〉. 〈10.1016/j.celrep.2017.01.063〉. 〈hal-01561086〉

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