9-Cis-retinoic acid exhibits antifibrotic activity via the induction of cyclooxygenase-2 expression and prostaglandin E2 production in scleroderma fibroblasts
Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan;;and Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China