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Type 1 diabetes (T1D) is a chronic autoimmune disease characterized by T-cell-mediated destruction of pancreatic beta cells, resulting in insulin deficiency. Both genetic predisposition and environmental factors contribute to T1D development, with growing evidence implicating the gut microbiome as a critical environmental modulator in disease pathogenesis. Gut microbial composition and derived metabolites influence immune homeostasis and autoimmunity. This review summarizes recent advances elucidating immune dysregulations in T1D and novel therapeutic strategies to preserve beta cell function. We discuss approaches such as immune cell engineering, including CAR-Treg therapy, and targeted modulation of immune signaling pathways like JAK-STAT. Furthermore, we explore the role of the gut microbiota and its metabolites in modulating host immunity and describe emerging microbiome-targeting interventions, including fecal microbiota transplantation and metabolite supplementation. These interventions show promise in modulating disease progression in preclinical and early clinical studies. An integrated understanding of immune and microbiome-related mechanisms is critical for developing next-generation therapies. Further research and clinical trials are needed to optimize these approaches and translate them into durable, personalized treatments for individuals with T1D.
Groen et al. (Thu,) studied this question.