Abstract
In cancer research today, one of the major challenges is the eradication of cancer stem cells (CSCs) within the tumor mass. These cells play a crucial role in initiating, growing, and maintaining the tumor. Evidence has demonstrated the presence and significance of CSCs in the development and progression of osteosarcoma (OS). However, our understanding of the specific markers for OS stem cells remains limited. In this study, we aim to identify distinct biomarkers for this cell population by conducting a proteomic analysis comparing OS stem cells to their non-stem counterparts. Our investigation focuses on a particular cell line called 3AB-OS, which exhibits stem-like characteristics, and its differentiated parental cell line, MG63. Through this research, we discovered 63 proteins exclusively expressed in 3AB-OS cells. Applying an in silico bioinformatics approach, we determined that the majority of these proteins are associated with RNA metabolism. Additionally, we identified a potential correlation between the insulin-like growth factor-binding proteins (IGF2BPs) signaling pathway and the tumorigenic and stemness features observed in 3AB-OS cells.
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