Bioinspired artificial exosomes based on lipid nanoparticles carrying let-7b-5p promote angiogenesis in vitro and in vivo.

Although statistical significance (defined as p < 0.05) was barely missed (p = 0.0571), we could detect a clear trend suggesting the capacity of let-7b-AEs to increase the number of CD31 + ECs (in comparison with negative controls) ( Figure 6 C).

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