title: Primary culture and transfection of epithelial cells of human small intestine.
abstract: BACKGROUND
  So far, no techniques are available for primary culture and efficient transfection of human small-intestinal enterocytes, which would provide a valuable tool to investigate intestinal function.
  
  
  METHODS
  Human small-intestinal biopsy specimens were treated with collagenase and dispase. Resulting crypt units were cultured for several days. Using the intestinal epithelial cell lines Caco-2 and HT-29, we established optimal conditions for transfection of a control plasmid, which were then applied to primary cultured cells.
  
  
  RESULTS
  Cells growing out of crypt units formed monolayer-like sheets and proliferated for several days. Most of the cells could be stained with antibodies against epithelial markers. Among seven different transfection reagents tested, Lipofectamine was the most potent, with transfection efficiencies up to 25% for primary enterocytes.
  
  
  CONCLUSIONS
  An easy technique was developed providing viable small-intestinal enterocytes that can be efficiently transfected.
authors.affiliation: Institute of Clinical Chemistry and Pathobiochemistry, Medical Hospital II, Children's Hospital of the University of Leipzig, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Brandsch
authors.forename: P
authors.initials: P
authors.lastname: Friedl
authors.forename: K
authors.initials: K
authors.lastname: Lange
authors.forename: T
authors.initials: T
authors.lastname: Richter
authors.forename: T
authors.initials: T
authors.lastname: Mothes
mesh_terms: D002455:Cell Division; D002478:Cells, Cultured; D003110:Colonic Neoplasms / Q000235:genetics*; D004847:Epithelial Cells / Q000378:metabolism*; D006801:Humans; D007124:Immunoenzyme Techniques; D007421:Intestine, Small / Q000166:cytology*; D014162:Transfection / Q000379:methods*; D014407:Tumor Cells, Cultured