title: c-FOS suppresses ovarian cancer progression by changing adhesion.
abstract: BACKGROUND
  C-Fos was initially described as oncogene, but was associated with favourable prognosis in ovarian cancer (OvCa) patients. The molecular and functional aspects underlying this effect are still unknown.
  
  
  METHODS
  Using stable transfectants of SKOV3 and OVCAR8 cells, proliferation, migration, invasion and apoptotic potential of c-FOS-overexpressing clones and controls were compared. Adherence to components of the extracellular matrix was analysed in static assays, and adhesion to E-selectin, endothelial and mesothelial cells in dynamic flow assays. The effect of c-FOS in vivo was studied after intraperitoneal injection of SKOV3 clones into SCID mice, and changes in gene expression were determined by microarray analysis.
  
  
  RESULTS
  Tumour growth after injection into SCID mice was strongly delayed by c-FOS overexpression, with reduction of lung metastases and circulating tumour cells. In vitro, c-FOS had only weak influence on proliferation and migration, but was strongly pro-apoptotic. Adhesion to components of the extracellular matrix (collagen I, IV) and to E-selectin, endothelial and mesothelial cells was significantly reduced in c-FOS-overexpressing OvCa cells. This corresponds to deregulation of adhesion proteins and glycosylation enzymes in microarray analysis.
  
  
  CONCLUSIONS
  In addition to its known pro-apoptotic effect, c-FOS might influence OvCa progression by changing the adhesion of OvCa cells to peritoneal surfaces.
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: L
authors: L
authors: Oliveira-Ferrer
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: K
authors: K
authors: Rößler
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: V
authors: V
authors: Haustein
authors: Department of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: C
authors: C
authors: Schröder
authors: Department of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: D
authors: D
authors: Wicklein
authors: SRC Bioclinicum, Ugreshskaya Street 2/85, Moscow 115088, Russia.
authors: D
authors: D
authors: Maltseva
authors: SRC Bioclinicum, Ugreshskaya Street 2/85, Moscow 115088, Russia.
authors: N
authors: N
authors: Khaustova
authors: SRC Bioclinicum, Ugreshskaya Street 2/85, Moscow 115088, Russia.
authors: T
authors: T
authors: Samatov
authors: Institute of General Pathology and Pathophysiology, Baltijskaya Street 8, Moscow 125315, Russia.
authors: A
authors: A
authors: Tonevitsky
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: S
authors: S
authors: Mahner
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: F
authors: F
authors: Jänicke
authors: Department of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: U
authors: U
authors: Schumacher
authors: Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors: K
authors: K
authors: Milde-Langosch
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000235:genetics; D063646:Carcinogenesis / Q000378:metabolism*; D002448:Cell Adhesion / Q000235:genetics*; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics; D049109:Cell Proliferation; D018450:Disease Progression; D005109:Extracellular Matrix / Q000235:genetics / Q000378:metabolism; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D051379:Mice; D009361:Neoplasm Invasiveness / Q000235:genetics; D009360:Neoplastic Cells, Circulating / Q000378:metabolism; D010051:Ovarian Neoplasms / Q000235:genetics* / Q000473:pathology; D016760:Proto-Oncogene Proteins c-fos / Q000096:biosynthesis / Q000235:genetics*
chemical_list: D016760:Proto-Oncogene Proteins c-fos