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- Dokumenttyp:
- Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Article
- Autor(en):
- Erkan, M; Weis, N; Pan, Z; Schwager, C; Samkharadze, T; Jiang, X; Wirkner, U; Giese, NA; Ansorge, W; Debus, J; Huber, PE; Friess, H; Abdollahi, A; Kleeff, J
- Titel:
- Organ-, inflammation- and cancer specific transcriptional fingerprints of pancreatic and hepatic stellate cells.
- Abstract:
- Tissue fibrosis is an integral component of chronic inflammatory (liver and pancreas) diseases and pancreatic cancer. Activated pancreatic- (PSC) and hepatic- (HSC) stellate cells play a key role in fibrogenesis. To identify organ- and disease-specific stellate cell transcriptional fingerprints, we employed genome-wide transcriptional analysis of primary human PSC and HSC isolated from patients with chronic inflammation or cancer.Stellate cells were isolated from patients with pancreatic ductal adenocarcinoma (n = 5), chronic pancreatitis (n = 6), liver cirrhosis (n = 5) and liver metastasis of pancreatic ductal adenocarcinoma (n = 6). Genome-wide transcriptional profiles of stellate cells were generated using our 51K human cDNA microarray platform. The identified organ- and disease specific genes were validated by quantitative RT-PCR, immunoblot, ELISA, immunocytochemistry and immunohistochemistry.Expression profiling identified 160 organ- and 89 disease- specific stellate cell transcripts. Collagen type 11a1 (COL11A1) was discovered as a novel PSC specific marker with up to 65-fold higher expression levels in PSC compared to HSC (p < 0.0001). Likewise, the expression of the cytokine CCL2 and the cell adhesion molecule VCAM1 were confined to HSC. PBX1 expression levels tend to be increased in inflammatory- vs. tumor- stellate cells. Intriguingly, tyrosine kinase JAK2 and a member of cell contact-mediated communication CELSR3 were found to be selectively up-regulated in tumor stellate cells.We identified and validated HSC and PSC specific markers. Moreover, novel target genes of tumor- and inflammation associated stellate cells were discovered. Our data may be instrumental in developing new tailored organ- or disease-specific targeted therapies and stellate cell biomarkers.
- Zeitschriftentitel:
- Mol Cancer
- Jahr:
- 2010
- Band / Volume:
- 9
- Seitenangaben Beitrag:
- 88
- Sprache:
- eng
- Volltext / DOI:
- doi:10.1186/1476-4598-9-88
- PubMed:
- http://view.ncbi.nlm.nih.gov/pubmed/20416094
- Print-ISSN:
- 1476-4598
- TUM Einrichtung:
- Chirurgische Klinik und Poliklinik
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