Metabolomics Analysis of the Osteogenic Differentiation of Umbilical Cord Blood Mesenchymal Stem Cells Reveals Differential Sensitivity to Osteogenic Agents

Mesenchymal stem cells (MSCs) of fetal origin, such as umbilical cord blood MSCs (UCB MSCs), have emerged as a promising cell source for musculoskeletal tissue regeneration because of their higher proliferation potential, lack of donor site morbidity, and their off-the-shelf potential. MSCs differentiated toward the osteogenic lineage exhibit a specific metabolic phenotype characterized by reliance to oxidative phosphorylation for energy production and reduced glycolytic rates. Currently, limited information exists on the metabolic transitions at different stages of the osteogenic process after osteoinduction with different agents. Herein, the osteoinduction efficiency of BMP-2 and dexamethasone on UCB MSCs was assessed using gas chromatography-mass spectrometry (GC-MS) metabolomics analysis, revealing metabolic discrepancies at 7, 14, and 21 days of induction. Whereas both agents when administered individually were able to induce collagen I, osteocalcin, and osteonectin expression, BMP-2 was less effective than dexamethasone in promoting alkaline phosphatase expression. The metabolomics analysis revealed that each agent induced distinct metabolic alterations, including changes in amino acid pools, glutaminolysis, one-carbon metabolism, glycolysis, and tricarboxylic acid cycle. Importantly, we showed that in vitro-differentiated UCB MSCs acquire a metabolic physiology similar to primary osteoblasts when induced with dexamethasone but not with BMP-2, highlighting the fact that metabolomics analysis is sensitive enough to reveal potential differences in the osteogenic efficiency and can be used as a quality control assay for evaluating the osteogenic process.

Medienart:

E-Artikel

Erscheinungsjahr:

2017

Erschienen:

2017

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

Stem cells and development - 26(2017), 10 vom: 15. Mai, Seite 723-733

Sprache:

Englisch

Beteiligte Personen:

Klontzas, Michail E [VerfasserIn]
Vernardis, Spyros I [VerfasserIn]
Heliotis, Manolis [VerfasserIn]
Tsiridis, Eleftherios [VerfasserIn]
Mantalaris, Athanasios [VerfasserIn]

Links:

Volltext

Themen:

104982-03-8
7S5I7G3JQL
Alkaline Phosphatase
Bone Morphogenetic Protein 2
Collagen Type I
Cord blood
Dexamethasone
EC 3.1.3.1
Journal Article
Mesenchymal stem cells
Metabolism
Metabolomics
Osteoblasts
Osteocalcin
Osteogenesis
Osteonectin

Anmerkungen:

Date Completed 22.02.2018

Date Revised 02.12.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1089/scd.2016.0315

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM271056460