Cigarette smoke induces mitochondrial metabolic reprogramming in lung cells.
Mitochondrion
; 40: 58-70, 2018 05.
Article
en En
| MEDLINE
| ID: mdl-29042306
ABSTRACT
Cellular transformation owing to cigarette smoking is due to chronic exposure and not acute. However, systematic studies to understand the molecular alterations in lung cells due to cigarette smoke are lacking. To understand these molecular alterations induced by chronic cigarette smoke exposure, we carried out tandem mass tag (TMT) based temporal proteomic profiling of lung cells exposed to cigarette smoke for upto 12months. We identified 2620 proteins in total, of which 671 proteins were differentially expressed (1.5-fold) after 12months of exposure. Prolonged exposure of lung cells to smoke for 12months revealed dysregulation of oxidative phosphorylation and overexpression of enzymes involved in TCA cycle. In addition, we also observed overexpression of enzymes involved in glutamine metabolism, fatty acid degradation and lactate synthesis. This could possibly explain the availability of alternative source of carbon to TCA cycle apart from glycolytic pyruvate. Our data indicates that chronic exposure to cigarette smoke induces mitochondrial metabolic reprogramming in cells to support growth and survival.
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Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Humo
/
Fumar Cigarrillos
/
Pulmón
/
Metabolismo
/
Mitocondrias
Límite:
Humans
Idioma:
En
Revista:
Mitochondrion
Año:
2018
Tipo del documento:
Article
País de afiliación:
India