Novel Biomedical Functions of Surfactin A from Bacillus subtilis in Wound Healing Promotion and Scar Inhibition

Lu Yan, Guanwen Liu, Bin Zhao, Bing Pang, Wanqin Wu, Chongyang Ai, Xixi Zhao, Xinglong Wang, Chunmei Jiang, Dongyan Shao, Qianlong Liu, Meixuan Li, Lei Wang, Junling Shi

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Surfactin produced by Bacillus subtilis is a powerful biosurfactant in food, cosmetics, and pesticide industries. However, its suitability in wound healing applications is uncertain. In this article, we determined the effects of surfactin A from B. subtilis on wound healing, angiogenesis, cell migration, inflammatory response, and scar formation. The results indicated that 80.65 ± 2.03% of surfactin A-treated wounds were closed, whereas 44.30 ± 4.26% of the vehicle-treated wound areas remained open on day 7 (P < 0.05). In mechanisms, it upregulated the expression of hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF), accelerated keratinocyte migration through mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) signaling pathways, and regulated the secretion of proinflammatory cytokines and macrophage phenotypic switch. More attractive, surfactin A showed a seductive capability to inhibit scar tissue formation by affecting the expression of α-smooth muscle actin (α-SMA) and transforming growth factor (TGF-β). Overall, the study revealed a new function and potential of surfactin A as an affordable and efficient wound healing drug.

Original languageEnglish
Pages (from-to)6987-6997
Number of pages11
JournalJournal of Agricultural and Food Chemistry
Volume68
Issue number26
DOIs
StatePublished - 1 Jul 2020

Keywords

  • Bacillus subtilis
  • cell migration
  • scar inhibition
  • surfactin A
  • wound healing

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