Scholarlink

<p>In multiple sclerosis (MS), B cell-rich tertiary lymphoid tissues (TLTs) in the brain leptomeninges associate with cortical gray matter injury. Using a model of Th17 cell-driven experimental autoimmune encephalomyelitis in mice, we found that inhibitors of Bruton’s tyrosine kinase (BTKi) prevented TLT formation and cortical pathology in a B cell activating factor (BAFF)-dependent manner. BTKi reduced expression of lymphotoxin ligands, and cotreatment with a lymphotoxin-β receptor agonist abrogated the benefits of BTKi. TLT and cortical pathology tracked with a high CXCL13:BAFF ratio in the leptomeninges, which was reduced by BTKi. Moreover, we observed high CXCL13:BAFF ratios in post mortem cerebral spinal fluid from patients with MS and pathologically confirmed leptomeningeal inflammation, as well as in living patients with MS and radiologically confirmed paramagnetic rim lesions. In summary, using experimental autoimmune encephalomyelitis, we revealed a molecular circuit that leads to TLT formation and cortical injury with translational relevance for detection of this pathology in patients with MS.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Lymphotoxin-dependent elevated meningeal CXCL13:BAFF ratios drive gray matter injury

  • 期刊论文

  • 发表日期：

    2026年1月2日

查看全文
  • Ikbel Naouar,
  • Andrei Pangan,
  • Michelle Zuo,
  • Syed Ali Raza,
  • Kevin Champagne-Jorgensen,
  • Jyot Patel,
  • Angela Wang,
  • Annie Pu,
  • Lesley Ward,
  • Jennifer S. Y. Ahn,
  • Faizah N. Sayeed,
  • Jingwen Zhu,
  • Elisabeth Pössnecker,
  • Shoshana Spring,
  • John G. Sled,
  • Bruno Cenni,
  • Barbara Nuesslein-Hildesheim,
  • Jeffrey L. Browning,
  • Anne-Katrin Pröbstel,
  • Daniel S. Reich,
  • Jennifer L. Gommerman,
  • Valeria Ramaglia

摘要

In multiple sclerosis (MS), B cell-rich tertiary lymphoid tissues (TLTs) in the brain leptomeninges associate with cortical gray matter injury. Using a model of Th17 cell-driven experimental autoimmune encephalomyelitis in mice, we found that inhibitors of Bruton’s tyrosine kinase (BTKi) prevented TLT formation and cortical pathology in a B cell activating factor (BAFF)-dependent manner. BTKi reduced expression of lymphotoxin ligands, and cotreatment with a lymphotoxin-β receptor agonist abrogated the benefits of BTKi. TLT and cortical pathology tracked with a high CXCL13:BAFF ratio in the leptomeninges, which was reduced by BTKi. Moreover, we observed high CXCL13:BAFF ratios in post mortem cerebral spinal fluid from patients with MS and pathologically confirmed leptomeningeal inflammation, as well as in living patients with MS and radiologically confirmed paramagnetic rim lesions. In summary, using experimental autoimmune encephalomyelitis, we revealed a molecular circuit that leads to TLT formation and cortical injury with translational relevance for detection of this pathology in patients with MS.