{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Desmin is a 52 kDa type III cytoplasmic intermediate filament present in muscle and endothelial cells. Desmin plays a crucial role in maintaining the structural integrity and function of muscle cells. Light microscopy studies of desmin suggest that it is primarily located at or near the periphery of Z lines in striated muscle fibrils. In smooth muscle, desmin interconnects cytoplasmic dense bodies with membrane bound dense plaques."}]}]}