<prompt> Fibroblast is derived from-MacrophageEndotheliumVesselsLocal mesenchyme  <response>: o Fibroblasts produce the glycosaminoglycans, collagens, elastic fibers, reticular fibres and glycoproteins that can be seen in the extracellular matrix. They also produce cytokineTSLP.o Fibroblasts are originally derived from primitive mesenchyme and therefore display the filament protein vimentin, which acts as a marker of mesodermal origin.o Inactive fibroblasts are called fibrocytes. When tissue damage has occurred, the fibrocytes are stimulated to undergo mitosis or multiplication by replication and division.o Transforming growth factor P induces proliferation offibroblasts. It is chemotactic for fibroblasts 