Effects of rapamycin on biological characteristics of bone marrow mesenchymal stem cells from patients with aplastic anemia / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 762-766, 2014.
Article
Dans Chinois
| WPRIM
| ID: wpr-302403
ABSTRACT
This study was aimed to investigate the effects of rapamycin on biological function and autophagy of bone marrow mesenchymal stem cells (BM-MSC) from patients with aplastic anemia so as to provide experimental basis for the clinical treatment of aplastic anemia (AA) with rapamycin. BM-MSC were treated with different concentrations of rapamycin (0, 10, 50, 100 nmol/L) for 48 h, the expression of LC3B protein was detected by Western blot to observe the effect of rapamycin on cell autophagy; cell apoptosis and cell cycles were detected by flow cytometry; the proliferation of BM-MSC of AA patients was measured by cell counting kit-8; the adipogenic differentiation of BM-MSC were tested by oil red O staining after adipogenic induction for 2 weeks; the adipogenic related genes (LPL, CFD, PPARγ) were detected by real-time PCR. The results showed that the proliferation and adipogenesis of BM-MSC of AA patients were inhibited by rapamycin. Moreover, the autophagy and apoptosis of BM-MSC were increased by rapamycin in a dose-dependent way.Rapamycin arrested the BM-MSC in G0/G1 phase and prevented them into S phase (P < 0.05). It is concluded that rapamycin plays an critical role in inhibiting cell proliferation, cell cycles, and adipogenesis, these effects may be related with the autophagy activation and mTOR inhibition resulting from rapamycin.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Pharmacologie
/
Autophagie
/
Cellules de la moelle osseuse
/
Transduction du signal
/
Cycle cellulaire
/
Cellules cultivées
/
Apoptose
/
Sirolimus
/
Biologie cellulaire
/
Prolifération cellulaire
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Experimental Hematology
Année:
2014
Type:
Article
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