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Forschungsdatenbank PMU-SQQUID

Human platelet lysate can replace fetal bovine serum for clinical-scale expansion of functional mesenchymal stromal cells.
Schallmoser, K; Bartmann, C; Rohde, E; Reinisch, A; Kashofer, K; Stadelmeyer, E; Drexler, C; Lanzer, G; Linkesch, W; Strunk, D;
Transfusion. 2007; 47(8):143-146
Originalarbeiten (Zeitschrift)

PMU-Autor/inn/en

Rohde Eva
Schallmoser Katharina
Strunk Dirk

Abstract

BACKGROUND
Human multipotent mesenchymal stromal cells (MSCs) are promising candidates for a growing spectrum of regenerative and immunomodulatory cellular therapies. Translation of auspicious experimental results into clinical applications has been limited by the dependence of MSC propagation from fetal bovine serum (FBS).
The capacity of human platelet lysate (HPL) to replace FBS for clinical-scale MSC propagation was analyzed.
HPL could be efficiently produced from buffy coats. Multiplex analyses allowed a distinct HPL growth factor profile to be delineated. With a previously established two-step clinical-scale procedure, HPL was reproducibly more efficient than FBS in supporting MSC outgrowth. With only 3 x 10(5) primary culture-derived MSCs, a mean of 4.36 x 10(8) HPL-MSCs (range, 3.01 x 10(8)-5.40 x 10(8)) was obtained within a single secondary 11- to 13-day culture step. Although morphologically distinct, HPL-MSCs and FBS-MSCs did not differ significantly in terms of immunophenotype, differentiation potential in vitro, and lack of tumorigenicity in nude mice in vivo.
Replacing FBS with HPL prevents bovine prion, viral, and zoonose contamination of the stem cell product. This new efficient FBS-free two-step procedure for clinical-scale MSC propagation may represent a major step toward challenging new stem cell therapies.


Useful keywords (using NLM MeSH Indexing)

Animals

Blood Platelets/physiology*

Cattle/blood*

Cell Differentiation

Cells, Cultured

Culture Media

Fetal Blood/physiology*

Humans

Mesenchymal Stromal Cells/cytology*

Mice

Mice, Nude

Multipotent Stem Cells/cytology*

Stromal Cells/cytology*