TY - JOUR
T1 - Artery tertiary lymphoid organs control aorta immunity and protect against atherosclerosis via vascular smooth muscle cell Lymphotoxin β receptors
AU - Hu, Desheng
AU - Mohanta, Sarajo K.
AU - Yin, Changjun
AU - Peng, Li
AU - Ma, Zhe
AU - Srikakulapu, Prasad
AU - Grassia, Gianluca
AU - MacRitchie, Neil
AU - Dever, Gary
AU - Gordon, Peter
AU - Burton, Francis L.
AU - Ialenti, Armando
AU - Sabir, Suleman R.
AU - McInnes, Iain B.
AU - Brewer, James M.
AU - Garside, Paul
AU - Weber, Christian
AU - Lehmann, Thomas
AU - Teupser, Daniel
AU - Habenicht, Livia
AU - Beer, Michael
AU - Grabner, Rolf
AU - Maffia, Pasquale
AU - Weih, Falk
AU - Habenicht, Andreas J R
PY - 2015/6/16
Y1 - 2015/6/16
N2 - Tertiary lymphoid organs (TLOs) emerge during nonresolving peripheral inflammation, but their impact on disease progression remains unknown. We have found in aged Apoe-/- mice that artery TLOs (ATLOs) controlled highly territorialized aorta Tcell responses. ATLOs promoted Tcell recruitment, primed CD4+ Tcells, generated CD4+, CD8+, T regulatory (Treg) effector and central memory cells, converted naive CD4+ Tcells into induced Treg cells, and presented antigen by an unusual set of dendritic cells and B cells. Meanwhile, vascular smooth muscle celllymphotoxin β receptors (VSMC-LTβRs) protected against atherosclerosis by maintaining structure, cellularity, and size of ATLOs though VSMC-LTβRs did not affect secondary lymphoid organs: Atherosclerosis was markedly exacerbated in Apoe-/-Ltbr-/- and to a similar extent in aged Apoe-/-Ltbrfl/flTagln-cre mice. These data support the conclusion that the immune system employs ATLOs to organize aorta Tcell homeostasis during aging and that VSMC-LTβRs participate in atherosclerosis protection via ATLOs.
AB - Tertiary lymphoid organs (TLOs) emerge during nonresolving peripheral inflammation, but their impact on disease progression remains unknown. We have found in aged Apoe-/- mice that artery TLOs (ATLOs) controlled highly territorialized aorta Tcell responses. ATLOs promoted Tcell recruitment, primed CD4+ Tcells, generated CD4+, CD8+, T regulatory (Treg) effector and central memory cells, converted naive CD4+ Tcells into induced Treg cells, and presented antigen by an unusual set of dendritic cells and B cells. Meanwhile, vascular smooth muscle celllymphotoxin β receptors (VSMC-LTβRs) protected against atherosclerosis by maintaining structure, cellularity, and size of ATLOs though VSMC-LTβRs did not affect secondary lymphoid organs: Atherosclerosis was markedly exacerbated in Apoe-/-Ltbr-/- and to a similar extent in aged Apoe-/-Ltbrfl/flTagln-cre mice. These data support the conclusion that the immune system employs ATLOs to organize aorta Tcell homeostasis during aging and that VSMC-LTβRs participate in atherosclerosis protection via ATLOs.
KW - atherosclerosis
KW - vascular smooth muscle cells
KW - Lymphotoxin β receptors
UR - http://www.scopus.com/inward/record.url?scp=84937573919&partnerID=8YFLogxK
UR - http://www.sciencedirect.com/science/article/pii/S1074761315002137
U2 - 10.1016/j.immuni.2015.05.015
DO - 10.1016/j.immuni.2015.05.015
M3 - Article
AN - SCOPUS:84937573919
SN - 1074-7613
VL - 42
SP - 1100
EP - 1115
JO - Immunity
JF - Immunity
IS - 6
ER -