Vascular Endothelial Growth Factor and Transforming Growth Factor-α and -β1 Are Released From Human Cultured Gingival Epithelial Sheets
2002
Background: It has been demonstrated that human cultured epithelial sheets prepared by tissue engineering techniques provide useful graft material for wound healing and tissue regeneration. However, limited information is available with regard to biological effects such as release of growth factors from human cultured gingival epithelial sheets (HCGES). The purpose of this study was to measure the levels of growth factors released from HCGES into culture medium Methods: Twenty patients aged 44 to 71 years with generalized chronic periodontitis were recruited, and their gingival tissues obtained during periodontal flap surgery. The levels of vascular endothelial growth factor (VEGF), transforming growth factor-α and -βl (TGF-α and -βl), and epidermal growth factor (EGF) released into the culture medium were determined using enzyme-linked immunosorbent assay at the just confluent (Tl) and the adequate stratification (T2) culture stages. The medium without cells was collected as a control (TO) statistical te...
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