title: Fibroblasts contracting three-dimensional collagen gels exhibit ultrastructure consistent with either contraction or protein secretion.
mesh_terms: D000818:Animals; D002460:Cell Line; D003094:Collagen; D003599:Cytoskeleton / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005347:Fibroblasts / Q000502:physiology / Q000648:ultrastructure*; D005782:Gels; D006056:Golgi Apparatus / Q000648:ultrastructure; D007365:Intercellular Junctions / Q000648:ultrastructure; D008252:Macaca fascicularis; D008928:Mitochondria / Q000648:ultrastructure; D008954:Models, Biological; D010513:Periodontal Ligament; D011506:Proteins / Q000378:metabolism; D013997:Time Factors
chemical_list: D005782:Gels; D011506:Proteins; D003094:Collagen