Effect of insulin deprivation on metabolism and metabolism-associated gene transcript levels of in vitro cultured human Sertoli cells.
Biochim Biophys Acta
; 1820(2): 84-9, 2012 Feb.
Article
em En
| MEDLINE
| ID: mdl-22146232
ABSTRACT
BACKGROUND:
Sertoli cells metabolize glucose producing lactate for developing germ cells. As insulin regulates glucose uptake and its disturbance/insensitivity is associated with diabetes mellitus, we aimed to determine the effect of insulin deprivation in human Sertoli cell (hSC) metabolism and metabolism-associated gene expression.METHODS:
hSC-enriched primary cultures were maintained in the absence/presence of insulin and metabolite variations were determined by (1)H-NMR. mRNA expression levels of glucose transporters (GLUT1, GLUT3), lactate dehydrogenase (LDHA) and monocarboxylate transporter (MCT4) were determined by RT-PCR.RESULTS:
Insulin deprivation resulted in decreased lactate production and in decrease of glucose consumption that was completely reverted after 6h. Cells of both groups consumed similar amounts of glucose. In insulin-deprived cells, transcript levels of genes associated to lactate metabolism (LDHA and MCT4) were decreased. Transcript levels of genes involved in glucose uptake exhibited a divergent variation GLUT3 levels were decreased while GLUT1 levels increased. Insulin-deprived hSCs presented 1) altered glucose consumption and lactate secretion; 2) altered expression of metabolism-associated genes involved in lactate production and export; 3) an adaptation of glucose uptake by modulating the expression of GLUT1 and GLUT3. GENERALSIGNIFICANCE:
This is the first report regarding the effect of insulin-deprivation on hSC metabolism.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Células de Sertoli
/
Regulação da Expressão Gênica
/
Insulina
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
/
Male
Idioma:
En
Revista:
Biochim Biophys Acta
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Portugal