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Tetrahedral Framework Nucleic Acids Inhibit Skin Fibrosis via the Pyroptosis Pathway.

Yueying Jiang1, Songhang Li1, Tianxu Zhang1

  • 1State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.

ACS Applied Materials & Interfaces
|March 23, 2022
PubMed
Summary
This summary is machine-generated.

Tetrahedral framework nucleic acids (tFNAs) show promise for treating skin fibrosis. These DNA nanomaterials effectively reduce inflammation, collagen buildup, and pyroptosis, offering a potentially safer therapeutic approach.

Keywords:
epithelial−mesenchymal transitionextracellular matrixfibrosisinflammationpyroptosisskintetrahedral framework nucleic acid

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Area of Science:

  • Biomaterials Science
  • Dermatology
  • Nanotechnology

Background:

  • Skin fibrosis results from dysregulated tissue repair following injury or disease.
  • Current treatments for skin fibrosis are inadequate and associated with adverse effects.
  • There is a need for novel therapies that target fibrosis while minimizing inflammation and cell death.

Purpose of the Study:

  • To investigate the therapeutic potential of tetrahedral framework nucleic acids (tFNAs) for skin fibrosis.
  • To evaluate the efficacy of tFNAs in inhibiting fibrosis-related cellular processes and pathways.

Main Methods:

  • In vitro cell culture experiments and in vivo mouse models were utilized.
  • Cells and mice were treated with profibrogenic molecules and tFNAs.
  • Key markers of fibrosis, inflammation, and cell death were assessed.

Main Results:

  • tFNAs effectively inhibited the epithelial-mesenchymal transition, a key process in fibrosis.
  • Treatment with tFNAs led to reduced levels of inflammatory factors.
  • tFNAs decreased skin collagen content and inhibited the pyroptosis pathway.

Conclusions:

  • tFNAs demonstrate significant antifibrotic effects in vitro and in vivo.
  • tFNAs show potential as a novel therapeutic strategy for skin fibrosis.
  • These findings suggest tFNAs could be beneficial in treating pyroptosis-related skin conditions.