Base de dados : LILACS
Pesquisa : D12.644.360.262.100 [Categoria DeCS]
Referências encontradas : 1 [refinar]
Mostrando: 1 .. 1   no formato [Detalhado]

página 1 de 1

  1 / 1 LILACS  
             
seleciona
para imprimir
Fotocópia
Id: lil-335914
Autor: Marty, Carolina; Mori, Gladys; Sabini, Liliana; Rivarola, Viviana.
Título: Effects of alpha-difluoromethylornithine on the cyclin A expression in Hep-2 cells
Fonte: Biocell;24(1):49-52, Apr. 2000.
Idioma: en.
Resumo: DFMO is an irreversible inhibitor of ornithine decarboxilase (ODC), the key enzyme in mammalian polyamine biosynthesis. The goal of this study was to determine the effects of DFMO on the expression of cyclin A at different stages of the cell cycle of Hep-2 cells. The cell cycle analysis, done by measuring the incorporation of thymidine in the cell DNA, revealed that DFMO produced a lower and constant level of that incorporation; this effect is probably due to the incapacity of the cells to culminate the phase S of the cell cycle. The expression of cyclin A increased in the phases S and G2 in control cells, almost disappearing in phase M. However, in DFMO treated cultures, the expression of cyclin A was increased in M and this effect remained still after 48 h treatment. We conclude that polyamines could exert an effect on the cyclin destruction mechanism, and the depletion caused by DFMO would alter this mechanism.
Descritores: Ciclina A
Eflornitina
Inibidores Enzimáticos/farmacologia
Ornitina Descarboxilase
-Poliaminas
Células Tumorais Cultivadas
Limites: Seres Humanos
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME



página 1 de 1
   


Refinar a pesquisa
  Base de dados : Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde