PURPOSE: To investigate the relationship between connective tissue growth factor (CTGF) and fibrosis and angiogenesis in postoperative peritoneal adhesion formation. METHODS: Adhesions were performed in 35 rats by creation of a peritoneal patch. Animals were sacrificed at 7 different time-points over 3 weeks. Adhesions and uninjured peritoneum from all animals were assessed by Northern blotting for CTGF and collagen-I mRNA and by immunohistochemistry for CTGF localization, degree of fibrosis and angiogenesis. RESULTS: Persistent adhesions formed in all animals. CTGF and collagen-I mRNA were increased in adhesions compared to uninjured peritoneum (p < 0.05 for both). The temporal expression pattern depicted delayed peak levels of collagen-I mRNA with increasing tendency for both transcripts at the end of the observation period. Fibrosis within adhesions correlated positively with time after surgery (r = 0.85; p < 0.001) and showed typical signs of chronic tissue fibrosis at later time points. Angiogenesis was detected in adhesions but not in uninjured peritoneum (p = 0.001) and coincided with the spatial and temporal expression of CTGF protein in fibroblasts and vascular endothelial cells. CONCLUSIONS: The co-expression of CTGF with increasing fibrosis and angiogenesis in postoperative peritoneal adhesions suggests a role for CTGF as critical molecule in fibrous adhesive disease and target for future adhesion prevention. Copyright (c) 2005 S. Karger AG, Basel.
PURPOSE: To investigate the relationship between connective tissue growth factor (CTGF) and fibrosis and angiogenesis in postoperative peritoneal adhesion formation. METHODS: Adhesions were performed in 35 rats by creation of a peritoneal patch. Animals were sacrificed at 7 different time-points over 3 weeks. Adhesions and uninjured peritoneum from all animals were assessed by Northern blotting for CTGF and collagen-I mRNA and by immunohistochemistry for CTGF localization, degree of fibrosis and angiogenesis. RESULTS: Persistent adhesions formed in all animals. CTGF and collagen-I mRNA were increased in adhesions compared to uninjured peritoneum (p < 0.05 for both). The temporal expression pattern depicted delayed peak levels of collagen-I mRNA with increasing tendency for both transcripts at the end of the observation period. Fibrosis within adhesions correlated positively with time after surgery (r = 0.85; p < 0.001) and showed typical signs of chronic tissue fibrosis at later time points. Angiogenesis was detected in adhesions but not in uninjured peritoneum (p = 0.001) and coincided with the spatial and temporal expression of CTGF protein in fibroblasts and vascular endothelial cells. CONCLUSIONS: The co-expression of CTGF with increasing fibrosis and angiogenesis in postoperative peritoneal adhesions suggests a role for CTGF as critical molecule in fibrous adhesive disease and target for future adhesion prevention. Copyright (c) 2005 S. Karger AG, Basel.
Authors: Christoph Brochhausen; Volker H Schmitt; Constanze N E Planck; Taufiek K Rajab; David Hollemann; Christine Tapprich; Bernhard Krämer; Christian Wallwiener; Helmut Hierlemann; Rolf Zehbe; Heinrich Planck; C James Kirkpatrick Journal: J Gastrointest Surg Date: 2012-06 Impact factor: 3.452
Authors: Clement D Marshall; Michael S Hu; Tripp Leavitt; Leandra A Barnes; Alexander T M Cheung; Samir Malhotra; H Peter Lorenz; Michael T Longaker Journal: J Vis Exp Date: 2016-08-27 Impact factor: 1.355
Authors: Christoph Brochhausen; Volker H Schmitt; Andreas Mamilos; Christine Schmitt; Constanze N E Planck; Taufiek K Rajab; Helmut Hierlemann; C James Kirkpatrick Journal: J Mater Sci Mater Med Date: 2016-12-19 Impact factor: 3.896