Peroxisome Proliferator-Activated Receptor gammaActivation Promotes Adipogenesis in Human Mesenchymal Stem Cells / 대한정형외과연구학회지
Journal of Korean Orthopaedic Research Society
;
: 127-134, 2003.
Artículo
en Coreano
| WPRIM
| ID: wpr-147905
ABSTRACT
PURPOSE:
In this study, we determined that the troglitazones could induce uniform adipogenesis of human mesenchymal stem cells (MSCs) within a short time in a dose- and a time-dependent manners. MATERIALS ANDMETHODS:
Human MSCs were isolated from bone marrow and cultured in basal or adipogenic medium in the presence of 0~50 micrometer troglitazone for 5 days. Then we performed flow cytometry, RT-PCR and western blot analysis.RESULTS:
In FACS assay, troglitazone induced adipocyte differentiation in a dose-dependent manner. At concentration of 25 micrometer troglitazone in adipogenic medium, over 50% of the cells differentiated into adipocytes at day 5. This was accompanied by increased mRNA levels for the adipocyte gene markers (LPL, aP2 and PPAR gamma) in RT-PCR. In western blot analysis, we found that ERK phosphorylation was inhibited in the early stage of adipogenesis.CONCLUSION:
Through the addition of troglitazone as a PPAR gamma agonist, we could get the uniform adipogenic differentiation within a short time. Thus, troglitazone directly regulates differentiation of human MSCs into adipocytes; induced PPAR gamma expression may play a key regulatory role in this process. And we suggest a role for ERK as a regulatory switch for these differentiation pathways.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Fosforilación
/
Médula Ósea
/
ARN Mensajero
/
Western Blotting
/
Adipocitos
/
Peroxisomas
/
Receptores Activados del Proliferador del Peroxisoma
/
PPAR gamma
/
Adipogénesis
/
Células Madre Mesenquimatosas
Límite:
Humanos
Idioma:
Coreano
Revista:
Journal of Korean Orthopaedic Research Society
Año:
2003
Tipo del documento:
Artículo
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