title: Serum-free cultivation of human Tenon's capsule fibroblasts.
abstract: OBJECTIVE
  In the present study, the effect of three different serum-free and one serum-containing control medium on adhesion, proliferation, cryopreservation and PDGF-induced effects on cell proliferation of human Tenon's capsule fibroblasts (HTF) was compared.
  
  
  METHODS
  Third passage HTF were suspended in four different culture media (WM/F12, WM/F12/FCS 1%, LR-1, DMEM) and plating efficiency was determined after 24h using a cell counter system. Subsequently, cells were seeded at a density of 50/mm2 and cultured for ten days using the different culture media. Cell number was determined at day 2, 4, 7 and 10 after seeding. Furthermore, HTF cultured under the different conditions were stimulated by PDGF-BB [50 ng/ml]. Additionally, cell vitality after two weeks cryopreservation in five different culture media (WM/F12, WM/F12/FCS 1%, WM/F12/FCS 20%, LR-1, DMEM) was determined.
  
  
  RESULTS
  The plating efficiency of HTF when seeded in serum-free medium ranged from 55.3% to 59.6%. Using serum containing WM/F12/FCS 1% a slightly higher plating efficiency of 74.8% was obtained. Proliferation assays revealed population doublings of 0.77 with WM/F12/FCS 1% after an incubation period of 10 days. Cultivation of HTF using serum-free conditions did not cause significant cell proliferation but a slight cell loss which ranged from 23.1% to 34%. Addition of PDGF-BB resulted in a significant increase in cell proliferation with WM/F12/FCS 1%, WM/F12 and DMEM. After two weeks of cryopreservation in WM/F12, LR-1, DMEM, WM/F12/FCS 1% and WM/F12/FCS 20%, only the application of high serum concentrations led to sufficient preservation of cell vitality with a plating efficiency of 82.9%.
  
  
  CONCLUSIONS
  The results of the present study demonstrate that the use of serum-containing media is mandatory for cryopreservation of HTF. Seeding of cells can be performed either with serum or without serum. HTF cultured under serum-free conditions can be maintained quiescent with a sufficient number of cells remaining vital. The serum-free media used in this study can be applied for the investigation of cytokine effects on HTF.
authors.affiliation: University Eye Clinic Tübingen, Dep.I: General Ophthalmology. Oliver.Denk@uni-tuebingen.de
authors.forename: P O
authors.initials: PO
authors.lastname: Denk
authors.forename: M
authors.initials: M
authors.lastname: Knorr
mesh_terms: D002448:Cell Adhesion / Q000187:drug effects / Q000502:physiology; D002452:Cell Count; D002455:Cell Division / Q000187:drug effects / Q000502:physiology; D002470:Cell Survival / Q000187:drug effects / Q000502:physiology; D002478:Cells, Cultured; D003239:Connective Tissue Cells / Q000166:cytology* / Q000187:drug effects; D015925:Cryopreservation; D016895:Culture Media, Serum-Free; D005205:Fascia / Q000166:cytology / Q000187:drug effects; D005347:Fibroblasts / Q000166:cytology* / Q000187:drug effects; D006801:Humans; D010982:Platelet-Derived Growth Factor / Q000494:pharmacology
chemical_list: D016895:Culture Media, Serum-Free; D010982:Platelet-Derived Growth Factor