IGF-1 inhibits inflammation and accelerates angiogenesis via Ras/PI3K/IKK/NF-κB signaling pathways to promote wound healing

  • Eur J Pharm Sci. 2024 Sep 1:200:106847. doi: 10.1016/j.ejps.2024.106847.
Xin Zhang  1 ,  Fei Hu  2 ,  Jie Li  2 ,  Lin Chen  2 ,  Yu-Fei Mao  2 ,  Qiu-Bo Li  1 ,  Chen-Yao Nie  3 ,  Cai Lin  4 ,  Jian Xiao  5
Affiliations
  • 1. School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; Department of Burn, the First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang 325000, China.
  • 2. School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China.
  • 3. School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China. Electronic address: [email protected].
  • 4. School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; Department of Burn, the First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang 325000, China. Electronic address: [email protected].
  • 5. School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; Department of Burn, the First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang 325000, China. Electronic address: [email protected].
PMID: 38972611 DOI: 10.1016/j.ejps.2024.106847
Abstract

Exogenous insulin-like growth factor-1 (IGF-1) has been reported to promote wound healing through regulation of vascular endothelial cells (VECs). Despite the existing studies of IGF-1 on VEC and its role in angiogenesis, the mechanisms regarding anti-inflammatory and angiogenetic effects of IGF-1 remain unclear. In this study, we investigated the wound-healing process and the related signaling pathway of IGF-1 using an inflammation model induced by IFN-γ. The results demonstrated that IGF-1 can increase cell proliferation, suppress inflammation in VECs, and promote angiogenesis. In vivo studies further confirmed that IGF-1 can reduce inflammation, enhance vascular regeneration, and improve re-epithelialization and Collagen deposition in acute wounds. Importantly, the Ras/PI3K/IKK/NF-κB signaling pathways was identified as the mechanisms through which IGF-1 exerts its anti-inflammatory and pro-angiogenic effects. These findings contribute to the understanding of IGF-1's role in wound healing and may have implications for the development of new wound treatment approaches.

Keywords
Angiogenesis; IGF-1; Inflammation; Signaling pathways; Wound healing.
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