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- W3037350249 abstract "Although the immune response within draining lymph nodes (DLNs) has been studied for decades, how their stromal compartment contributes to this process remains to be fully explored. Here, we show that donor mast cells were prominent activators of collagen I deposition by fibroblastic reticular cells (FRCs) in DLNs shortly following transplantation. Serial analysis of the DLN indicated that the LN stroma did not return to its baseline microarchitecture following organ rejection and that the DLN contained significant fibrosis following repetitive organ transplants. Using several FRC conditional-knockout mice, we show that induction of senescence in the FRCs of the DLN resulted in massive production of collagen I and a proinflammatory milieu within the DLN. Stimulation of herpes virus entry mediator (HVEM) on FRCs by its ligand LIGHT contributed chiefly to the induction of senescence in FRCs and overproduction of collagen I. Systemic administration of ex vivo–expanded FRCs to mice decreased DLN fibrosis and strengthened the effect of anti-CD40L in prolonging heart allograft survival. These data demonstrate that the transformation of FRCs into proinflammatory myofibroblasts is critically important for the maintenance of a proinflammatory milieu within a fibrotic DLN." @default.
- W3037350249 created "2020-07-02" @default.
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- W3037350249 date "2020-06-29" @default.
- W3037350249 modified "2023-09-25" @default.
- W3037350249 title "Lymph node fibroblastic reticular cells deposit fibrosis-associated collagen following organ transplantation" @default.
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- W3037350249 doi "https://doi.org/10.1172/jci136618" @default.
- W3037350249 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7410068" @default.
- W3037350249 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32597832" @default.
- W3037350249 hasPublicationYear "2020" @default.
- W3037350249 type Work @default.