Journal
NANOSCALE
Volume 13, Issue 37, Pages 15598-15610Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nr04619e
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Funding
- National Key R&D Program of China [2019YFA0110600]
- National Natural Science Foundation of China [81970986, 81771125]
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The study showed that tetrahedral framework nucleic acids (tFNAs) could regulate the neurorestorative pathway NGF/PI3 K/AKT, leading to activation of cell behaviors related to injured nerve repair. In vivo experiments demonstrated that tFNAs enhanced expression of axon and myelin marker proteins, improved histological recovery, and promoted efficient restoration of nerve conduction and muscle movement. tFNAs also exhibited excellent biocompatibility and endocytosis ability, suggesting promising potential for therapy of facial nerve injury and peripheral nerve injury.
The facial nerve is a crucial nerve in the maxillofacial region and is vulnerable to damage. As a consequence of the complications during nerve restoration, existing remedies have certain limitations, thus the treatment of facial nerve injury is always a perplexing task for people. Regulation of Schwann cells is always the breakpoint of neurorestoration since Schwann cells count a great deal in injured nerve repair. In this study, we presented proof that tetrahedral framework nucleic acids (tFNAs), a kind of nucleic acid nanomaterial, were capable of regulating the neurorestorative pathway NGF/PI3 K/AKT, resulting in the activation of a series of cell behaviors related to injured nerve restoration such as proliferation and migration. In vivo experiments also proved that tFNAs enhanced the expressions of axon and myelin marker proteins, impelled histological recovery, promoted the efficient restoration of nerve conduction and muscle movement. Additionally, tFNAs possessed excellent biocompatibility and superior endocytosis ability. Thus, there is good potential for tFNAs to be applied in the therapy of facial nerve injury or even peripheral nerve injury.
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