Inhibition of autophagy enhanced cobalt chlorideinduced apoptosis in rat alveolar type II epithelial cells.
Mol Med Rep
; 18(2): 2124-2132, 2018 Aug.
Article
en En
| MEDLINE
| ID: mdl-29956802
ABSTRACT
Hypoxia is a type of cellular stress that may result in apoptosis and autophagy. The molecular mechanisms underlying the association between autophagy and apoptosis remain unclear, particularly in hypoxic conditions. Transmission electron microscope, AOPI staining, flow cytometry and western blot were used to examine the crosstalk between autophagy and apoptosis in hypoxic conditions. Rat alveolar type II epithelial RLE6TN cells were cultured in a longterm hypoxic environment established by cobalt (II) chloride. It was demonstrated that autophagy and apoptosis occurred in RLE6TN cells under hypoxic conditions. Treatment of RLE6TN cells with the autophagy inhibitor 3methyladenine increased the generation of reactive oxygen species, mitochondrial damage and hypoxiainduced apoptosis. The expression of caspases, particularly caspase9, increased and may have participated in these processes. The data indicated that the inhibition of autophagy enhanced apoptosis through the mitochondriamediated intrinsic pathway. These findings provide important insight into the molecular mechanism of autophagy and apoptosis crosstalk. This may provide new insights into pulmonary disease surveillance, diagnosis and treatment.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Autofagia
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Regulación Enzimológica de la Expresión Génica
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Cobalto
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Apoptosis
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Caspasa 9
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Células Epiteliales Alveolares
Límite:
Animals
Idioma:
En
Revista:
Mol Med Rep
Año:
2018
Tipo del documento:
Article