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Notch receptors are determinants of cell fate decisions. To define the role of Notch in the adult skeleton, we created transgenic mice overexpressing the Notch intracellular domain (NICD) under the control of the type I collagen promoter. First generation ...
In this thesis, the potential use of fetal bone cells for tissue engineering was evaluated. At first, fetal bone cells were characterized in vitro regarding their proliferation rate, the induction of their osteoblastic phenotype, and their antigenicity. Th ...
Inactivating mutations of the tumor-suppressor kinase gene LKB1 underlie Peutz-Jeghers syndrome (PJS), which is characterized by gastrointestinal hamartomatous polyps with a prominent smooth-muscle and stromal component. Recently, it was noted that PJS-typ ...
In the nanocomposite bone, inorganic material is combined with several types of organic molecules, and these complexes have been proposed to increase the bone strength. Here we report on a mechanism of how one of these components, human osteopontin, forms ...
Total Hip Replacement (THR) is today a routine procedure executed more than 800'000 times per year worldwide. THR gives generally satisfactory results, although the quality of outcome is inversely proportional to the age of the patient. In parallel, there ...
After organ injury, a complex sequence of events is triggered to heal the tissue and to form a scar. Myofibroblasts, specialized contractile and secretory fibroblasts, are one of the many cell types that participate in the remodeling process. Myofibroblast ...
The purpose of the present work was to examine the effect of different Ti-6Al-4V surface treatments on osteoblasts behaviour. Previous work in this laboratory has demonstrated that an ageing treatment reduces metal ion release from this alloy compared to s ...
The conjunctive presence of mechanical stress and active transforming growth factor beta1 (TGF-beta1) is essential to convert fibroblasts into contractile myofibroblasts, which cause tissue contractures in fibrotic diseases. Using cultured myofibroblasts a ...
In an attempt to increase the life of cementless prostheses, an hydroxyapatite-coated implant which releases a bisphosphonate has been suggested as a drug-delivery system. Our in vitro study was designed to determine the maximum dose to which osteoblasts c ...
This protocol describes the setup, maintenance and characteristics of a tissue-engineered model of the human bronchial mucosa that can be used for basic physiology and pathophysiology studies. The model includes a well-differentiated epithelium with functi ...
