AUTHOR=Ginsberg Pauline , Panzer Ulf , Asada Nariaki 

TITLE=Tissue-resident memory T cells in renal autoimmune diseases

JOURNAL=Frontiers in Immunology

VOLUME=14

YEAR=2023

URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2023.1111521

DOI=10.3389/fimmu.2023.1111521

ISSN=1664-3224

ABSTRACT=<p>The discovery of tissue-resident memory T cells (T<sub>RM</sub> cells) reinterpreted the potential of human tissue-specific immunity. Following T cell receptor (TCR) activation and clonal expansion, effector T cells migrate to peripheral tissues where they remain long-term and differentiate to T<sub>RM</sub> cells after antigen clearance. This allows for prompt immunological responses upon antigen re-encounter. In addition to their protective properties in acute infections, recent studies have revealed that T<sub>RM</sub> cells might lead to aggravation of autoimmune diseases, such as lupus nephritis (LN) and anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN). These diseases present as proliferative and crescentic glomerulonephritis (cGN), which is a life-threatening condition leading to end-stage renal disease (ESRD) if left untreated. A better understanding of renal T<sub>RM</sub> cells might lead to identifying new therapeutic targets for relapsing autoimmune diseases of the kidney. In this review, we summarize the current knowledge of renal T<sub>RM</sub> cells and discuss their potential pathophysiological roles in renal autoimmune diseases.</p>