REVIEW article Front. Cell Dev. Biol. Sec. Signaling GPCRs as key regulators in wound healing 1. Center for High Altitude Medicine, Institute of High-Altitude Medicine, High Altitude Medicine Key Laboratory of Sichuan Province, Department of Dermatology & Venerology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China 2. Department of dermatology and venereology, West China Hospital, Sichuan University, Sichuan University, Chengdu, China 3.