May 7, 2026 · Blood · DOI: 10.1182/blood.2025029593

JMJD1C-mediated epigenetic control of autoimmunity and HIT antibody production

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This study investigates the role of JMJD1C, a histone demethylase, in the regulation of PF4/heparin-specific antibody production and its implications for heparin-induced thrombocytopenia (HIT). The authors found that JMJD1C deficiency leads to disrupted immune tolerance and hyperresponsive B cells, contributing to the production of pathogenic antibodies associated with HIT. Their findings reveal a novel epigenetic mechanism that underlies HIT pathogenesis, linking JMJD1C to the dysregulation of B-cell activation pathways.

Mei Yu, Lu Zhou, Yongguang Zhang, Yongwei Zheng, Yuhong Chen, David W Wang, Nan Zhu, Renren Wen, Demin Wang

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