Shao?et?al. Cancer Cell International (2022) 22:183 https://doi.org/10.1186/s12935-022-02591-1 Cancer Cell International PRIMARY RESEARCH Open Access Tetraspanin 7 promotes osteosarcoma cell invasion and?metastasis by?inducing EMT and?activating the?FAK-Src-Ras-ERK1/2 signaling pathway Shijie Shao1?, Lianhua Piao2*?, Liwei Guo1, Jiangsong Wang1, Luhui Wang1, Jiawen Wang1, Lei Tong1, Xiaofeng Yuan1, Junke Zhu1, Sheng Fang1 and Yimin Wang1* Abstract Background: Tetraspanins are m...