The RD/JAK-Stat Pathway Firefly luciferase Reporter stable cell line, a well-studied human rhabdomyosarcoma cell line, serves as a popular model for investigating muscle cell differentiation, pediatric soft tissue tumors, and viral pathogenesis, particularly with enteroviruses like poliovirus. Derived from a human muscle tumor, it's suitable for muscle lineage studies. It's susceptible to infection by many enteroviruses, making it perfect for virology research. While retaining some myogenic potential, it expresses desmin, myogenin, and other muscle-associated proteins. This cell line is frequently used in toxicology assays, especially for muscle-targeted compounds.