title: Comparison of clinical grade human platelet lysates for cultivation of mesenchymal stromal cells from bone marrow and adipose tissue.
abstract: BACKGROUND
  The utility of mesenchymal stromal cells (MSCs) in therapeutic applications for regenerative medicine has gained much attention. Clinical translation of MSC-based approaches requires in vitro culture-expansion to achieve a sufficient number of cells. The ideal cell culture medium should be devoid of any animal derived components. We have evaluated whether human Platelet Lysate (hPL) could be an attractive alternative to animal supplements.
  
  
  METHODS
  MSCs from bone marrow (BMSCs) and adipose tissue-derived stromal cells (ASCs) obtained from three donors were culture expanded in three different commercially available hPL fulfilling good manufacturing practice criteria for clinical use. BMSCs and ASCs cultured in Minimum Essential Medium Eagle-alpha supplemented with 5% PLT-Max (Mill Creek), Stemulate™ PL-S and Stemulate™ PL-SP (COOK General Biotechnology) were compared to standard culture conditions with 10% fetal bovine serum (FBS). Cell morphology, proliferation, phenotype, genomic stability, and differentiation potential were analyzed.
  
  
  RESULTS
  Regardless of manufacturer, BMSCs and ASCs cultured in hPL media showed a significant increase in proliferation capacity compared to FBS medium. In general, the immunophenotype of both BMSCs and ASCs fulfilled International Society for Cellular Therapy (ISCT) criteria after hPL media expansion. Comparative genomic hybridization measurements demonstrated no unbalanced chromosomal rearrangements for BMSCs or ASCs cultured in hPL media or FBS medium. The BMSCs and ASCs could differentiate into osteogenic, adipogenic, or chondrogenic lineages in all four culture conditions.
  
  
  CONCLUSIONS
  All three clinically approved commercial human platelet lysates accelerated proliferation of BMSCs and ASCs and the cells meet the ISCT mesenchymal phenotypic requirements without exhibiting chromosomal aberrations.
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Morten
authors.initials: M
authors.lastname: Juhl
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Josefine
authors.initials: J
authors.lastname: Tratwal
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Bjarke
authors.initials: B
authors.lastname: Follin
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Rebekka H
authors.initials: RH
authors.lastname: Søndergaard
authors.affiliation: b Department of Clinical Genetics, Rigshospitalet , Copenhagen University Hospital , Copenhagen , Denmark.
authors.forename: Maria
authors.initials: M
authors.lastname: Kirchhoff
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Annette
authors.initials: A
authors.lastname: Ekblond
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Jens
authors.initials: J
authors.lastname: Kastrup
authors.affiliation: a Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet , Copenhagen University Hospital ;
authors.forename: Mandana
authors.initials: M
authors.lastname: Haack-Sørensen
mesh_terms: D000273:Adipose Tissue / Q000166:cytology; D000328:Adult; D001792:Blood Platelets / Q000737:chemistry*; D001854:Bone Marrow Cells / Q000502:physiology; D018929:Cell Culture Techniques; D002454:Cell Differentiation; D002457:Cell Extracts; D049109:Cell Proliferation; D048430:Cell Shape; D055028:Comparative Genomic Hybridization; D003470:Culture Media / Q000737:chemistry; D005260:Female; D042822:Genomic Instability; D006801:Humans; D008297:Male; D059630:Mesenchymal Stem Cells / Q000502:physiology*; D008875:Middle Aged; D061251:Primary Cell Culture; D055815:Young Adult
chemical_list: D002457:Cell Extracts; D003470:Culture Media
keywords: Platelet lysate; adipose tissue-derived stromal cells; cell culture; clinical application; mesenchymal stromal cells