Histological analysis of defective colonic healing as a result of angiostatin treatment
| Autor: | Elisabeth A. te Velde, Benno Küsters, Cathy Maass, Robert M.W. de Waal, Inne H.M. Borel Rinkes |
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| Rok vydání: | 2003 |
| Předmět: |
Male
Pathology medicine.medical_specialty Colon Neutrophils Angiogenesis Clinical Biochemistry Neovascularization Physiologic Angiogenesis Inhibitors Apoptosis Pathology and Forensic Medicine Immunoenzyme Techniques Extracellular matrix Mice medicine Animals Humans Antigens Angiostatins Molecular Biology Mice Inbred BALB C Wound Healing Angiostatin business.industry Anastomosis Surgical Granulation tissue Plasminogen Kinase insert domain receptor Histology Vascular Endothelial Growth Factor Receptor-2 Peptide Fragments Extracellular Matrix Tumor microenvironment [UMCN 1.3] Platelet Endothelial Cell Adhesion Molecule-1 medicine.anatomical_structure Wounds and Injuries Immunohistochemistry Proteoglycans Endothelium Vascular Wound healing business |
| Zdroj: | Experimental and Molecular Pathology, 75, 119-23 Experimental and Molecular Pathology, 75, 2, pp. 119-23 |
| ISSN: | 0014-4800 |
| Popis: | Item does not contain fulltext Antiangiogenic therapy is a highly promising new strategy in the treatment of cancer. One of the first angiogenesis inhibitors described was angiostatin, a 38-kDa internal proteolytically generated fragment of plasminogen. In a previous study we found that angiostatin affected physiological angiogenesis as well as tumor angiogenesis. It impaired healing when administered during repair of experimental colonic anastomoses, as reflected by a decrease in mechanical strength. On histology, we observed a decrease in factor VIII-stained vessel amount and volume in angiostatin-treated colonic anastomoses. The exact working mechanism of angiostatin has not been elucidated. Based on the available studies on proposed working mechanisms of angiostatin, we have attempted to address histological differences in physiological angiogenesis between the tissues of colonic anastomoses of mice with impaired healing and control mice. After angiostatin treatment there was more inflammatory tissue as a result of impaired healing. Furthermore, we found fewer vessels in the granulation tissue after angiostatin treatment. However, especially with respect to extracellular matrix (ECM), endothelial cell apoptosis, proliferation, or neutrophil influx, no gross differences were discerned 1 week following surgery, using histology and immunohistochemistry techniques. |
| Databáze: | OpenAIRE |
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