Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular

The generation of reactive oxygen species (ROS) may be both beneficial to cells, performing functions in intracellular signaling and detrimental, modifying cellular biomolecules. ROS can cause DNA damage, such as base damage and strand breaks. Organisms respond to chromosome insults by activation of...

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Main Authors: Carolina M. Berra, Carlos F. M. Menck, Paolo Di Mascio
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2006-12-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000600032&lng=en&tlng=en
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author Carolina M. Berra
Carlos F. M. Menck
Paolo Di Mascio
author_facet Carolina M. Berra
Carlos F. M. Menck
Paolo Di Mascio
author_sort Carolina M. Berra
collection DOAJ
description The generation of reactive oxygen species (ROS) may be both beneficial to cells, performing functions in intracellular signaling and detrimental, modifying cellular biomolecules. ROS can cause DNA damage, such as base damage and strand breaks. Organisms respond to chromosome insults by activation of a complex and hierarchical DNA-damage response pathway. The extent of DNA damages determines cell fate: cell cycle arrest and DNA repair or cell death. The ATM is a central protein in the response to DNA double-strand breaks by acting as a transducer protein. Collected evidences suggest that ATM is also involved in the response to oxidative DNA damage.
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spelling doaj.art-4716fd70cd74455b9e4c74036ed321e12022-12-22T03:56:44ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642006-12-012961340134410.1590/S0100-40422006000600032S0100-40422006000600032Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celularCarolina M. Berra0Carlos F. M. Menck1Paolo Di Mascio2Universidade de São PauloUniversidade de São PauloUniversidade de São PauloThe generation of reactive oxygen species (ROS) may be both beneficial to cells, performing functions in intracellular signaling and detrimental, modifying cellular biomolecules. ROS can cause DNA damage, such as base damage and strand breaks. Organisms respond to chromosome insults by activation of a complex and hierarchical DNA-damage response pathway. The extent of DNA damages determines cell fate: cell cycle arrest and DNA repair or cell death. The ATM is a central protein in the response to DNA double-strand breaks by acting as a transducer protein. Collected evidences suggest that ATM is also involved in the response to oxidative DNA damage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000600032&lng=en&tlng=enATMcheckpointsoxidative stress
spellingShingle Carolina M. Berra
Carlos F. M. Menck
Paolo Di Mascio
Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
Química Nova
ATM
checkpoints
oxidative stress
title Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
title_full Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
title_fullStr Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
title_full_unstemmed Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
title_short Estresse oxidativo, lesões no genoma e processos de sinalização no controle do ciclo celular
title_sort estresse oxidativo lesoes no genoma e processos de sinalizacao no controle do ciclo celular
topic ATM
checkpoints
oxidative stress
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000600032&lng=en&tlng=en
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AT paolodimascio estresseoxidativolesoesnogenomaeprocessosdesinalizacaonocontroledociclocelular