Diabetes Mellitus Inhibits Hair Follicle Regeneration by Inducing Macrophage Reprogramming-Mediated Pyroptosis

The study demonstrates that Type 1 Diabetes Mellitus (T1DM) inhibits hair follicle regeneration by inducing macrophage reprogramming-mediated pyroptosis in hair follicle stem cells (HFSCs). Using male C57BL/6 mice, researchers found that T1DM impairs HFSC activation and proliferation, crucial for skin renewal and wound healing. RNA sequencing and cellular experiments revealed that high-glucose environments and inflammation trigger pyroptosis, leading to reduced skin renewal and increased difficulty in healing diabetic chronic wounds (DCWs). The findings suggest targeting programmed cell death pathways to improve HF regeneration and skin repair in diabetic conditions.