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Cooperation and interplay between base and nucleotide excision repair pathways: From DNA lesions to proteins Genet. Mol. Biol.
Kumar,Namrata; Moreno,Natália C.; Feltes,Bruno C.; Menck,Carlos FM; Houten,Bennett Van.
Abstract Base and nucleotide excision repair (BER and NER) pathways are normally associated with removal of specific types of DNA damage: small base modifications (such as those induced by DNA oxidation) and bulky DNA lesions (such as those induced by ultraviolet or chemical carcinogens), respectively. However, growing evidence indicates that this scenario is much more complex and these pathways exchange proteins and cooperate with each other in the repair of specific lesions. In this review, we highlight studies discussing the involvement of NER in the repair of DNA damage induced by oxidative stress, and BER participating in the removal of bulky adducts on DNA. Adding to this complexity, UVA light experiments revealed that oxidative stress also causes...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Base excision repair; Nucleotide excision repair; DNA damage; Protein oxidation; UVA light.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200309
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DNA repair diseases: what do they tell us about cancer and aging? Genet. Mol. Biol.
Menck,Carlos FM; Munford,Veridiana.
The discovery of DNA repair defects in human syndromes, initially in xeroderma pigmentosum (XP) but later in many others, led to striking observations on the association of molecular defects and patients' clinical phenotypes. For example, patients with syndromes resulting from defective nucleotide excision repair (NER) or translesion synthesis (TLS) present high levels of skin cancer in areas exposed to sunlight. However, some defects in NER also lead to more severe symptoms, such as developmental and neurological impairment and signs of premature aging. Skin cancer in XP patients is clearly associated with increased mutagenesis and genomic instability, reflecting the defective repair of DNA lesions. By analogy, more severe symptoms observed in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Xeroderma pigmentosum; Ultraviolet; DNA damage; Oxidative stress; DNA repair.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200008
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