Abstract:
:Pulmonary granuloma formation and fibrosis were experimentally induced in Sprague-Dawley strain rats by Angiostrongylus cantonensis. Increased protein levels of matrix metalloproteinase (MMP)-2, -9, -13 and the imbalance between these enzymes and metalloproteinase inhibitors, tissue inhibitors of MMPs (TIMP-1 and -2), occur during granulomatous fibrosis. Activation of proteolytic enzymes (MMP-2, -9 and -13) and fibronectin degradation occur simultaneously. Furthermore, the present study demonstrated that fibronectin avidly binds MMP-2, -9 or -13. Immunohistochemical observations also showed the localization of MMP-13, TIMP-1 and -2 within the infiltrating leucocytes. These results suggest that MMP-2, -9 and -13 may participate in the fibronectin degradation of A. cantonensis-induced granulomatous fibrosis.
journal_name
Int J Exp Patholjournal_title
International journal of experimental pathologyauthors
Hsu CC,Lai SCdoi
10.1111/j.1365-2613.2007.00554.xsubject
Has Abstractpub_date
2007-12-01 00:00:00pages
437-43issue
6eissn
0959-9673issn
1365-2613pii
IEP554journal_volume
88pub_type
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