part of part of connective tissue cell mesenchymal cell progenitor cell fibrochondrocyte progenitor cell A fibrochondrocyte progenitor cell demonstrates colony-forming capacity and multi-lineage differentiation potential toward osteogenic and adipogenic lineages. FCP A mesenchymal progenitor cell located in fibrocartilaginous tissues, along the fibrochondrocytic differentiation pathway that co-expresses both fibrochondrocyte markers (COL1A1, COL3A1) and mesenchymal stem cell markers (MCAM/CD146, MYLK) in humans. This cell serves as a progenitor for mature fibrochondrocytes and other meniscal cell types, with differentiation regulated by TGF-β signaling, focal adhesion, and extracellular matrix-receptor interaction pathways. fibrocartilage