Tetrahedral Framework Nucleic Acids Promote Corneal Epithelial Wound Healing in Vitro and in Vivo

Area of Science:

• Biomaterials Science
• Ophthalmology
• Regenerative Medicine

Background:

• Poor wound healing, particularly in the cornea, can lead to significant vision impairment.
• Developing effective therapeutic strategies to promote tissue repair is crucial for restoring normal function.
• Tetrahedral framework nucleic acids (tFNAs) represent a novel class of nanomaterials with potential biological applications.

Purpose of the Study:

• To investigate the efficacy of tFNAs in promoting corneal epithelial wound healing.
• To explore the in vitro and in vivo effects of tFNAs on corneal cells and tissue repair.

Main Methods:

• Assessing human corneal epithelial cell proliferation and migration in vitro upon tFNAs exposure.
• Analyzing the involvement of P38 and ERK1/2 signaling pathways.
• Establishing an animal model of corneal alkali burn to evaluate in vivo wound healing.
• Conducting clinical evaluations and histological analyses of corneal tissue.

Main Results:

• tFNAs significantly enhanced human corneal epithelial cell proliferation and migration in vitro.
• tFNAs exposure was associated with the activation of P38 and ERK1/2 signaling pathways.
• In vivo studies demonstrated that tFNAs improved corneal transparency and accelerated wound re-epithelialization in a corneal alkali burn model.

Conclusions:

• tFNAs exhibit a positive effect on corneal epithelial wound healing.
• These findings suggest tFNAs as a promising therapeutic agent for managing corneal injuries and preventing visual impairment.