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Article Abstract
Scars are common and intractable consequences after scalded wound healing, while monotherapy of epidermal growth factors does not solve this problem. Maintaining the stability of epidermal growth factors and promoting scarless healing of wounds is paramount. In this study, engineering cellular nanovesicles overexpressing PD-L1 proteins, biomimetic nanocarriers with immunosuppressive efficacy, were successfully prepared to encapsulate epidermal growth factors for maintaining its bioactivity. Remarkably, PD-L1 cellular nanovesicles encapsulating epidermal growth factors (EGF@PDL1 NVs) exerted desired therapeutic effect by attenuating the overactivation of T cell immune response and promoting skin cells migration and proliferation. Hence, EGF@PD-L1 NVs promoted wound healing and prevented scarring in deep second-degree scald treatment, demonstrating a better effect than using individual PD-L1 NVs or EGF. This research proved that EGF@PD-L1 NVs is considered an innovative and thorough therapy of deep second-degree scald.
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| http://dx.doi.org/10.1166/jbn.2022.3300 | DOI Listing |
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