TY - JOUR
T1 - Single cell sequencing identifies clonally expanded synovial CD4 + T PH cells expressing GPR56 in rheumatoid arthritis.
AU - Argyriou, Alexandra
AU - Wadsworth, Marc H
AU - Lendvai, Adrian
AU - Christensen, Stephen M
AU - Hensvold, Aase H
AU - Gerstner, Christina
AU - van Vollenhoven, Annika
AU - Kravarik, Kellie
AU - Winkler, Aaron
AU - Malmström, Vivianne
AU - Chemin, Karine
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/7/13
Y1 - 2022/7/13
N2 - Rheumatoid arthritis (RA) is an autoimmune disease affecting synovial joints where different CD4 + T cell subsets may contribute to pathology. Here, we perform single cell sequencing on synovial CD4 + T cells from anti-citrullinated protein antibodies (ACPA)+ and ACPA- RA patients and identify two peripheral helper T cell (T PH) states and a cytotoxic CD4 + T cell subset. We show that the adhesion G-protein coupled receptor 56 (GPR56) delineates synovial CXCL13 high T PH CD4 + T cells expressing LAG-3 and the tissue-resident memory receptors CXCR6 and CD69. In ACPA- SF, T PH cells display lower levels of GPR56 and LAG-3. Further, most expanded T cell clones in the joint are within CXCL13 high T PH CD4 + T cells. Finally, RNA-velocity analyses suggest a common differentiation pathway between the two T PH clusters and effector CD4 + T cells. Our study provides comprehensive immunoprofiling of the synovial CD4 + T cell subsets in ACPA+ and ACPA- RA.
AB - Rheumatoid arthritis (RA) is an autoimmune disease affecting synovial joints where different CD4 + T cell subsets may contribute to pathology. Here, we perform single cell sequencing on synovial CD4 + T cells from anti-citrullinated protein antibodies (ACPA)+ and ACPA- RA patients and identify two peripheral helper T cell (T PH) states and a cytotoxic CD4 + T cell subset. We show that the adhesion G-protein coupled receptor 56 (GPR56) delineates synovial CXCL13 high T PH CD4 + T cells expressing LAG-3 and the tissue-resident memory receptors CXCR6 and CD69. In ACPA- SF, T PH cells display lower levels of GPR56 and LAG-3. Further, most expanded T cell clones in the joint are within CXCL13 high T PH CD4 + T cells. Finally, RNA-velocity analyses suggest a common differentiation pathway between the two T PH clusters and effector CD4 + T cells. Our study provides comprehensive immunoprofiling of the synovial CD4 + T cell subsets in ACPA+ and ACPA- RA.
KW - Arthritis, Rheumatoid/immunology
KW - Humans
KW - Joints/metabolism
KW - Receptors, G-Protein-Coupled/genetics
KW - T-Lymphocyte Subsets/immunology
KW - T-Lymphocytes, Helper-Inducer/immunology
UR - http://www.scopus.com/inward/record.url?scp=85133992094&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-31519-6
DO - 10.1038/s41467-022-31519-6
M3 - Article
C2 - 35831277
SN - 2041-1723
VL - 13
SP - 4046
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 4046
ER -