Show simple item record Khan, Mahreen en_US 2007-05-15T19:07:04Z 2007-05-15T19:07:04Z 1998-05-01T00:00:00Z en_US
dc.description.abstract There are numerous causes of progressive pulmonary fibrosis but the most common form is called idiopathic pulmonary fibrosis (IPF). The etiology of IPF is unknown and it is relentless and lethal. The proposed pathogenesis of IPF is that following tissue injury there is recruitment of inflammatory cells that are activated to release proinflammatory and fibrogenic cytokines. Of these cytokines TGF-$\beta\sb1$ is not only a mitogen for immature fibroblasts but also a chemoattractant for fibroblasts and induces connective tissue synthesis which leads to fibrosis. In an early pulmonary injury response TGF-$\beta\sb1$ is aberrantly present in alveolar macrophages. However, in progressive pulmonary fibrosis where there are advanced lesions, TGF-$\beta\sb1$ is present in alveolar macrophages and epithelial cells irrespective of the etiology. Although we have demonstrated that increased expression of TGF-$\beta\sb1$ by alveolar macrophages is important for the pathogenesis of pulmonary inflammation and fibrosis, we sought to determine if aberrant expression of TGF-$\beta\sb1$ by alveolar epithelial cells was also important in regulating the inflammation and fibrosis. (Abstract shortened by UMI.) en_US
dc.format.extent 3906832 bytes
dc.format.extent 184 bytes
dc.format.mimetype application/pdf
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dc.language en en_US
dc.language.iso en_US
dc.rights info:eu-repo/semantics/openAccess
dc.title Chronic in vivo overexpression of TGF-B|1 using a retroviral expression vector en_US
dc.type info:eu-repo/semantics/masterThesis Physiology en_US Master of Science (M.Sc.) en_US

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