Journal of Transmitted Diseases and Immunity

Artery tertiary lymphoid organs: powerhouses of atherosclerosis immunity

Joint Event on 22^nd Edition of International Conference on Immunology and Evolution of Infectious Diseases & 12^th Edition of International Conference on Tissue Engineering and Regenerative Medicine
May 10-11, 2018 Frankfurt, Germany

Desheng Hu

Wuhan Union Hospital, China

ScientificTracks Abstracts: J Transm Dis Immun

DOI: 10.21767/2573-0320-C2-005

Abstract

Tertiary lymphoid organs (TLOs) emerge during non-resolving 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 T cell responses. ATLOs promoted T cell recruitment, primed CD4+ T cells, generated CD4+ , CD8+ , T regulatory (Treg) effector and central memory cells, converted naive CD4+ T cells into induced Treg cells, and presented antigen by an unusual set of dendritic cells and B cells. Meanwhile, vascular smooth muscle cell lymphotoxin �² receptors (VSMC-LT�²Rs) protected against atherosclerosis by maintaining structure, cellularity, and size of ATLOs though VSMC-LT�²Rs did not affect secondary lymphoid organs. Atherosclerosis was markedly exacerbated in Apoe/- Ltbr-/- and to a similar extent in aged Apoe-/-Ltbrfl/fl, Tagln-cre mice. These data support the conclusion that the immune system employs ATLOs to organize aorta T cell homeostasis during aging and that VSMC-LT�²Rs participate in atherosclerosis protection via ATLOs.

Biography

Desheng Hu has received his PhD degree in Immunology at the Leibniz Institute for Ageing Research, Jena University, Germany in 2012. After that he did his Postdoc training in the Institute for Immunology of Helmholtz Zentrum Munich and in the Institute for Immunology of Ludwig Maximilian University of Munich. In 2017, he went back to China and established his own research group in Wuhan Union Hospital, Wuhan, China. His research focuses on Vascular Immunology. So far, he has published several papers in high impact factor journals, such as Nature Immunology, Immunity and Circulation Research. Email:desheng_hu@126.com