TY - JOUR AB - Osteosarcoma (OS) has been demonstrated to be difficult to cure due to its potently malignant metastasis. Therefore, new therapeutic approaches blocking the metastatic potential of OS are urgently required to improve the outcomes for OS patients. In the present study, the anti‑metastatic capacity of sea cucumber (Cucumaria frondosa) fucoidan (Cf‑Fuc) was evaluated on osteosarcoma cells by cell adhesion assay, Transwell assay and U2OS cell migration assay. The underlying mechanism on the dynamic remodeling of the cytoskeleton was also explored. The present data indicated that Cf‑Fuc could block the U2OS osteosarcoma cell adhesion to fibronectin and significantly inhibit U2OS cell migration. Cf‑Fuc greatly impaired the migration capacity of U2OS cells, and the migrated distance and velocity of Cf‑Fuc‑treated cells were markedly reduced. Also, Cf‑Fuc could impair the dynamic remodeling of the cytoskeleton possibly by suppressing the phosphorylation of focal adhesion kinase and paxillin, as well as the activation of the Rac1/PAK1/LIMK1/cofilin signaling axis. Collectively, the present findings provide a novel therapeutic potential of C. frondosa fucoidan for osteosarcoma metastasis. AD - Department of Orthopedics, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China Department of Oral Radiology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin 130021, P.R. China Department of Radiology, The Second Affiliated Hospital of Jilin University, Changchun, Jilin 130041, P.R. China Department of Cardiovascular Medicine, The Second Affiliated Hospital of Jilin University, Changchun, Jilin 130041, P.R. China Healthcare Department, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China AU - Zhang,Minglei AU - Chen,Li AU - Liu,Yang AU - Chen,Minghui AU - Zhang,Shuang AU - Kong,Daliang DA - 2020/08/01 DO - 10.3892/or.2020.7614 EP - 476 IS - 2 JO - Oncol Rep KW - Cucumaria frondosa fucoidan osteosarcoma metastasis PY - 2020 SN - 1021-335X 1791-2431 SP - 469 ST - Sea cucumber Cucumaria frondosa fucoidan inhibits osteosarcoma adhesion and migration by regulating cytoskeleton remodeling T2 - Oncology Reports TI - Sea cucumber Cucumaria frondosa fucoidan inhibits osteosarcoma adhesion and migration by regulating cytoskeleton remodeling UR - https://doi.org/10.3892/or.2020.7614 VL - 44 ER -