Feng Wang1, Shu-Guang Wang1, Qian Yang2, Li-Ping Nan3, Tong-Chuan Cai4, De-Sheng Wu1, Liang Zhang5. 1. Department of Orthopedic, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China. 2. Department of Ophthalmology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China. 3. Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China. 4. Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, China. 5. Department of Orthopedics, Clinical Medical College of Yangzhou University, Yangzhou, China. Electronic address: zhangliang6320@sina.com.
Abstract
OBJECTIVE: In spinal surgery, considerable blood loss is increasingly treated with the local application of tranexamic acid (TXA). However, little is known about its cytotoxicity and effect on human fibroblasts. This study was to identify the effect of TXA solution on human fibroblast at different concentrations and exposure times in vitro. METHODS: To mimic the actual clinical situation, human fibroblasts were subjected to both limited and chronic exposure to various clinically relevant concentrations of TXA to mimic different ways of topical administration. At time points after treatment, the viability, proliferation, apoptosis, collagen synthesis, adhesion, and migration of fibroblasts were analyzed in vitro. RESULTS: Limited exposure (10 minutes) to a high concentration of TXA (100 mg/mL) did not affect the viability, proliferation, and apoptosis of fibroblasts, and chronic exposure to low concentration of TXA (≤12.5 mg/mL) exerted little effect on viability, proliferation, apoptosis, collagen synthesis, adhesion, and migration of human fibroblasts (P > 0.05). However, the chronic exposure to a high concentration of TXA (≥25 mg/mL) can inhibit the viability, proliferation, collagen synthesis, adhesion and migration, and induce apoptosis of fibroblasts. CONCLUSIONS: Although limited exposure to high concentration of TXA and chronic exposure to low concentration of TXA exerted little effect on fibroblasts, chronic exposure to high concentration of TXA can lead to fibroblast injury.
OBJECTIVE: In spinal surgery, considerable blood loss is increasingly treated with the local application of tranexamic acid (TXA). However, little is known about its cytotoxicity and effect on human fibroblasts. This study was to identify the effect of TXA solution on human fibroblast at different concentrations and exposure times in vitro. METHODS: To mimic the actual clinical situation, human fibroblasts were subjected to both limited and chronic exposure to various clinically relevant concentrations of TXA to mimic different ways of topical administration. At time points after treatment, the viability, proliferation, apoptosis, collagen synthesis, adhesion, and migration of fibroblasts were analyzed in vitro. RESULTS: Limited exposure (10 minutes) to a high concentration of TXA (100 mg/mL) did not affect the viability, proliferation, and apoptosis of fibroblasts, and chronic exposure to low concentration of TXA (≤12.5 mg/mL) exerted little effect on viability, proliferation, apoptosis, collagen synthesis, adhesion, and migration of human fibroblasts (P > 0.05). However, the chronic exposure to a high concentration of TXA (≥25 mg/mL) can inhibit the viability, proliferation, collagen synthesis, adhesion and migration, and induce apoptosis of fibroblasts. CONCLUSIONS: Although limited exposure to high concentration of TXA and chronic exposure to low concentration of TXA exerted little effect on fibroblasts, chronic exposure to high concentration of TXA can lead to fibroblast injury.
Authors: Ioannis Gkiatas; Aristeidis-Panagiotis Kontokostopoulos; Spyridon E Tsirigkakis; Ioannis Kostas-Agnantis; Ioannis Gelalis; Anastasios Korompilias; Emilios Pakos Journal: World J Orthop Date: 2022-06-18