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1.
Chinese Journal of Ocular Fundus Diseases ; (6): 78-81, 2020.
Artículo en Chino | WPRIM | ID: wpr-871707

RESUMEN

The pathogenesis of diabetic retinopathy (DR) is complex.Antisense non-coding RNA (ANRIL) in the INK4 locus in long-chain non-coding RNA (lncRNA) is closely related to cell proliferation,differentiation,and individual development.It plays an important role in the dysplasia of retinal vascular endothelial cells and is a new field in the study of the pathogenesis of DR.According to the researches at present,ANRIL may plays its role in the occurrence and development of DR through the signal pathway of nuclear factor-κB and ROS/polyadenylation diphosphate ribose polymerase,and interact with p300,miR-200b,and EZH2 to regulating the expression and function of VEGF.Specific blocking ANRIL and its related pathwaysmay become a new target in the treatment of DR.

2.
Journal of Huazhong University of Science and Technology (Medical Sciences) ; (6): 154-7, 2003.
Artículo en Inglés | WPRIM | ID: wpr-634820

RESUMEN

The feasibility of using cord blood mesenchymal stem/progenitor cells (CB-MSPCs) to regenerate cardiomyocytes and the optimal inducing conditions were investigated. The CB mononuclear cells were cultured in low serum DMEM medium to produce an adherent layer. After expansion, the adherent cells were added into cardiomyocyte inducing medium supplemented with 5-azacytidine. Cardiogenic specific contractile protein troponin T staining was performed to identify the cardiomyocyte-like cells. The results showed that the frequency of CB-MSPCs clones in CB mononuclear cells was 0.5 x 10(-6) and about 1.3 x 10(7)-fold expansion was achieved within 20 sub-cultivation. After cardiogenic induction, 70% CB-MSPCs was differentiated into cardiomyocyte-like cells. It was indicated that low serum culture could expand CB-MSPCs extensively and the expanded CB-MSPCs could be induced to differentiate into cardiomyocyte-like cells in high efficiency.


Asunto(s)
Azacitidina/farmacología , Diferenciación Celular , Células Cultivadas , Medios de Cultivo Condicionados , Sangre Fetal/citología , Técnica del Anticuerpo Fluorescente , Células Madre Mesenquimatosas/citología , Miocitos Cardíacos/citología , Troponina T
3.
Journal of Huazhong University of Science and Technology (Medical Sciences) ; (6): 154-157, 2003.
Artículo en Inglés | WPRIM | ID: wpr-290488

RESUMEN

The feasibility of using cord blood mesenchymal stem/progenitor cells (CB-MSPCs) to regenerate cardiomyocytes and the optimal inducing conditions were investigated. The CB mononuclear cells were cultured in low serum DMEM medium to produce an adherent layer. After expansion, the adherent cells were added into cardiomyocyte inducing medium supplemented with 5-azacytidine. Cardiogenic specific contractile protein troponin T staining was performed to identify the cardiomyocyte-like cells. The results showed that the frequency of CB-MSPCs clones in CB mononuclear cells was 0.5 x 10(-6) and about 1.3 x 10(7)-fold expansion was achieved within 20 sub-cultivation. After cardiogenic induction, 70% CB-MSPCs was differentiated into cardiomyocyte-like cells. It was indicated that low serum culture could expand CB-MSPCs extensively and the expanded CB-MSPCs could be induced to differentiate into cardiomyocyte-like cells in high efficiency.


Asunto(s)
Femenino , Humanos , Masculino , Embarazo , Azacitidina , Farmacología , Diferenciación Celular , Células Cultivadas , Medios de Cultivo Condicionados , Sangre Fetal , Biología Celular , Técnica del Anticuerpo Fluorescente , Células Madre Mesenquimatosas , Biología Celular , Miocitos Cardíacos , Biología Celular , Troponina T
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