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Li, L; Bachem, M G; Zhou, S; Sun, Z; Chen, J; Siech, M; Bimmler, D; Graf, R (2009). Pancreatitis-associated protein inhibits human pancreatic stellate cell MMP-1 and -2, TIMP-1 and -2 secretion and RECK expression. Pancreatology, 9(1-2):99-110.

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BACKGROUND/AIMS: Pancreatic stellate cells (PSCs) play a key role in fibrogenesis associated with acute and chronic pancreatitis. Pancreatitis-associated protein (PAP), an acute-phase protein, is dramatically upregulated during acute and chronic pancreatitis. Assuming a protective role of PAP, we investigated its effects on human PSCs. METHODS: PSCs were obtained by outgrowth from fibrotic human pancreas tissue. PAP was expressed in the yeast Pichia pastoris. PAP was added at 10 ng/ml to cultured PSCs. Cell proliferation was determined by bromodeoxyuridine incorporation. PSC migration was assessed by a wound healing assay. Collagen types I and III, fibronectin, matrix metalloproteinases (MMPs), tissue inhibitors of MMPs (TIMPs) and reversion-inducing cysteine-rich protein with Kazal motifs (RECK) were demonstrated on protein and mRNA level. RESULTS: PAP had no significant effect on PSC proliferation and migration. Cell-associated fibrillar collagen types I and III and fibronectin increased after addition of PAP to PSCs. PAP diminished the expression of MMP-1 and -2 and TIMP-1 and -2 and their concentrations in PSC supernatants. RECK was detected on the surface of PSCs and its expression was reduced after PAP application. CONCLUSIONS: Our data offer new insights into the biological functions of PAP, which may play an important role in wound healing response and cell-matrix interactions.


12 citations in Web of Science®
14 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Visceral and Transplantation Surgery
04 Faculty of Medicine > University Hospital Zurich > Division of Surgical Research
Dewey Decimal Classification:610 Medicine & health
Deposited On:30 Jan 2010 11:58
Last Modified:06 Jul 2016 15:52
Publisher DOI:10.1159/000178880
PubMed ID:19077460

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