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We developed an experimental framework to probe the idea that the site of priming in the systemic immune compartment is a determinant of T helper cell-induced immunopathology in remote organs. By site-specific in vivo labeling of antigen-specific T cells in inguinal (i) or gut draining mesenteric (m) lymph nodes, we show that i-T cells and m-T cells isolated from the inflamed central nervous system in a model for Multiple Sclerosis are distinct.

We developed an experimental framework to probe the idea that the site of priming in the systemic immune compartment is a determinant of T helper cell-induced immunopathology in remote organs. By site-specific in vivo labeling of antigen-specific T cells in inguinal (i) or gut draining mesenteric (m) lymph nodes, we show that i-T cells and m-T cells isolated from the inflamed central nervous system in a model for Multiple Sclerosis are distinct.

Single-cell transcriptome profiling of disease-related lymphocytes in patients with multiple sclerosis

Here, we use in vivo labeling at defined anatomical sites for "provance" tracking of immune cells across compartmental borders in the context of experimental autoimmune encephalomyelitis (EAE). Specifically, we labeled T cells in mesenteric or inguinal lymph nodes (LNs) of T cell conditional mitoDendra2 reporter mice via photoconversion at disease onset and re-isolated photoconverted T cells form the LNs, spleen and CNS two days later and we performed scRNA-seq on them. Our experimental system ...