High Expression of SRSF1 Facilitates Osteosarcoma Progression and Unveilsits Potential Mechanisms

SRSF1, a member of Serine/Arginine-Rich Splicing Factors (SRSFs), has been observed to significantly influence cancer progression. However, the precise role of SRSF1 in osteosarcoma (OS) remains unclear. In this study, we aimed to investigate the functions of SRSF1 and its underlying mechanism in OS.SRSF1 expression level in OS was obtained from the TCGA dataset, TAGET-OS database. qRT-PCR and Western blotting were employed to assess SRSF1 expression in human OS cell lines and human bone marrow mesenchymal stem cells (BMSC), as well as the interfered ectopic expression states. The effect of SRSF1 on cell migration, invasion, proliferation, and apoptosis of OS cells were measured by transwell assay and flow cytometry. RNA sequence and bioinformatic analyses were conducted to elucidate the relevant biological pathways regulated by SRSF1. Subsequently, Alternative Splicing (AS) events mediated by SRSF1 were identified through RNA-seq and summarized briefly.Our results highlight the oncogenic role of high SRSF1 expression in promoting OS progression, and further explore the potential mechanisms of action. The significant involvement of SRSF1 in OS development suggests its potential utility as a therapeutic target in OS.