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Overexpression of resistin affect 3T3-L1 adipocyte lipid metabolism / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 251-255, 2007.
Artigo em Chinês | WPRIM | ID: wpr-247341
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of resistin overexpression on 3T3-L1 adipocyte lipid and glucose metabolism.</p><p><b>METHODS</b>Expression vector for rat resistin gene was constructed and transfected into 3T3-L1 adipocytes. Cell differentiation and lipid accumulation was determined by Oil Red O staining. Differentiation marker genes (pref-1, C/EBPalpha, FAS) and glucose transporter 4 (GLUT4) gene mRNA expressions were evaluated by reverse transcription-PCR (RT-PCR). Triglyceride (TG) and free fatty acids (FFAs) in adipocytes were measured by colorimetric kit.</p><p><b>RESULTS</b>(1) In resistin-overexpressed adipocytes, the lipid droplets presented at the second day which was earlier than the control cells. (2) The expression of C/EBPalpha and FAS genes in resistin-overexpressed adipocytes were up-regulated and the pref-1 was down-regulated compared with that of the control cells. (3) In resistin-overexpressed adipocytes, cellular TG and FFAs levels were significantly increased (P<0.05). (4) There was no difference in the expression of GLUT4 gene between 3T3-L1 adipocytes and resistin-overexpressed adipocytes (P> 0.05).</p><p><b>CONCLUSION</b>Overexpression of resistin can affect 3T3-L1 adipocyte lipid metabolism and thereby result in obesity and insulin resistance, but have no effect on GLUT4 gene expression.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Triglicerídeos / Expressão Gênica / Diferenciação Celular / Adipócitos / Células 3T3-L1 / Resistina / Transportador de Glucose Tipo 4 / Metabolismo dos Lipídeos / Ácidos Graxos não Esterificados / Genética Limite: Animais Idioma: Chinês Revista: Chinese Journal of Medical Genetics Ano de publicação: 2007 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Triglicerídeos / Expressão Gênica / Diferenciação Celular / Adipócitos / Células 3T3-L1 / Resistina / Transportador de Glucose Tipo 4 / Metabolismo dos Lipídeos / Ácidos Graxos não Esterificados / Genética Limite: Animais Idioma: Chinês Revista: Chinese Journal of Medical Genetics Ano de publicação: 2007 Tipo de documento: Artigo