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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-4-21
pubmed:abstractText
Matrix metalloproteinases (MMPs) regulate matrix deposition in tissues. Collagens I, III, and IV are involved in early human liver development. To establish whether MMPs specific for these collagens participate in early human liver development, we localized immunohistochemically MMP-1 and MMP-13 (for collagens I and III) and MMP-2 and MMP-7 (for collagen IV) in the early human liver anlage [6th-10th gestational week (GW)]. MMP-1 was found from the 6th GW onward in hepatocytes and later also in outer limiting plate hepatocytes, early bile ducts, and periportal mesenchymal cells. In the 6th GW, MMP-2 was found only in microvascular endothelium. In the 7th GW, MMP-2 was also detected in hepatocytes. From the 9th GW onward, MMP-2 was detectable in all hepatocytes and erythropoietic, endothelial, and periportal mesenchymal cells. MMP-7 was present in the 6th GW in some hepatocytes and endothelial cells, but from the 7th GW onward, only in hematopoietic cells. MMP-13 was found exclusively in hematopoietic cells. This study has shown that production of MMP -1, MMP-2, MMP-7, and MMP-13 during human liver development already occurs from the 6th GW. At this time-point their substrates are only traces or are not yet present in the tissue. A possible role of MMPs in early liver development is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0948-6143
pubmed:author
pubmed:issnType
Print
pubmed:volume
112
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
277-82
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Matrix metalloproteinases in early human liver development.
pubmed:affiliation
Department of Histology, University of Gottingen, Kreuzbergring 36, D-37075 Gottingen, Germany. fquonda@gwdg.de
pubmed:publicationType
Journal Article