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August 8, 2026Tissue Barriers

An agonist of the cannabinoid-sensing G-protein coupled receptor 55 promotes wound healing and protects against UVB-induced keratinocyte damage

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Authors

PCPimngeon ChatkulAAApiwan ArinnoLPLapasrada Panpoca

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Overview

Randomized trial demonstrates enhanced wound healing and UVB protection in skin cells, indicating therapeutic potential.

Key Points

  • This research investigates the role of GPR55 in skin injury recovery and its protective effects on keratinocytes against UVB.
  • Utilized HaCaT keratinocyte-like cells to assess the effects of GPR55 agonist O1602 on wound healing and apoptosis.
  • Evaluated outcomes after pretreatment with inhibitors of PKA, AMPK, SIRT-1, and ERK to understand underlying mechanisms.
  • Analyzed protein expression and phosphorylation through western blotting to investigate signaling pathways.
  • O1602 treatment accelerated wound healing in HaCaT cells; however, the effect was not due to increased cell proliferation.
  • O1602 enhanced MMP-9 expression, indicating improved cell migration; this effect was inhibited by pathway blockers.
  • O1602 protected keratinocytes from UVB-induced apoptosis, with this protection diminished by pretreatment with inhibitors targeting key pathways.

Cite This Study

Chatkul et al. (2026) studied this question.

synapsesocial.com/papers/6a76da64f12abadc79814a46https://doi.org/10.1080/21688370.2026.2713791
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