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<p>Lumbar intervertebral disc degeneration (LIDD) serves as a principal contributor to low back pain, a condition that poses considerable global health and socioeconomic challenges. Recent studies have emphasized the significance of ferroptosis, an iron-dependent mechanism of programmed cell death, in the degeneration of nucleus pulposus cells (NPCs). This research examines the protective role of 1,25-dihydroxyvitamin D₃ [1,25(OH)₂D₃], the active metabolite of Vitamin D (VD), in LIDD through the modulation of ferroptosis. The results indicate that 1,25(OH)₂D₃ significantly inhibits ferroptosis in NPCs through the reduction of lipid peroxidation, restoration of glutathione levels, and enhancement of antioxidant defenses. 1,25(OH)₂D₃ exerts its effects by activating the VD receptor (VDR) signaling pathway, which regulates important ferroptosis-associated molecules, including glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11). The findings indicate the therapeutic potential of 1,25(OH)₂D₃ in alleviating LIDD, presenting a new strategy to inhibit ferroptosis and maintain intervertebral disc function.</p>

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1,25(OH)₂D₃ inhibits ferroptosis in nucleus pulposus cells via VDR signaling to mitigate lumbar intervertebral disc degeneration

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月7日

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  • Qiang Li,
  • Jing Peng,
  • Fan Ding

摘要

Lumbar intervertebral disc degeneration (LIDD) serves as a principal contributor to low back pain, a condition that poses considerable global health and socioeconomic challenges. Recent studies have emphasized the significance of ferroptosis, an iron-dependent mechanism of programmed cell death, in the degeneration of nucleus pulposus cells (NPCs). This research examines the protective role of 1,25-dihydroxyvitamin D₃ [1,25(OH)₂D₃], the active metabolite of Vitamin D (VD), in LIDD through the modulation of ferroptosis. The results indicate that 1,25(OH)₂D₃ significantly inhibits ferroptosis in NPCs through the reduction of lipid peroxidation, restoration of glutathione levels, and enhancement of antioxidant defenses. 1,25(OH)₂D₃ exerts its effects by activating the VD receptor (VDR) signaling pathway, which regulates important ferroptosis-associated molecules, including glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11). The findings indicate the therapeutic potential of 1,25(OH)₂D₃ in alleviating LIDD, presenting a new strategy to inhibit ferroptosis and maintain intervertebral disc function.