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Utilization of microsatellites for the analysis of genomic alterations in colorectal cancers in Brazil BJMBR
Fuzikawa,A.K.; Haddad,L.A.; da-Cunha-Melo,J.R.; Brasileiro-Filho,G.; Pena,S.D.J..
Two different pathogenetic mechanisms are proposed for colorectal cancers. One, the so-called "classic pathway", is the most common and depends on multiple additive mutational events (germline and/or somatic) in tumor suppressor genes and oncogenes, frequently involving chromosomal deletions in key genomic regions. Methodologically this pathway is recognizable by the phenomenon of loss of heterozygosity. On the other hand, the "mutator pathway" depends on early mutational loss of the mismatch repair system (germline and/or somatic) leading to accelerated accumulation of gene mutations in critical target genes and progression to malignancy. Methodologically this second pathway is recognizable by the phenomenon of microsatellite instability. The distinction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polymerase chain reaction; Colorectal carcinoma; Microsatellite; P53; DCC; Microsatellite instability.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000800001
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