human_reference_atlas part of has characterizing marker set has marker component ACTA2 C1QTNF7 ACTG1 COL1A2 DCN LTBP2 MFAP4 MYH11 PDGFRB cell cell type (from CL) contractile cell secondary crest myofibroblast 2023-03-16T09:17:47Z CL:4033016 secondary-crest myofibroblast SCMF A myofibroblast that is part of an alveoli during alveolarization. The contractile force of this cell elongates the secondary crest, while producing a framework of elastin and tenascin. During the maturation of the septa, secondary crest myofibroblasts, together with matrix fibroblasts, secrete metalloproteinases and other ECM‐remodeling proteins to thin the septal tip ECM. The secondary crest myofibroblast continues producing elastin, eventually undergoing apoptosis during adulthood. secondary crest myofibroblast SCMFs CT secondary crest myofibroblast alveolar myofibroblast Homo sapiens sequence collection respiratory tract lung connective tissue respiratory system lower respiratory tract lung