IndraLab
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"In CRC, the MSI phenotype is characterized by the accumulation of numerous mutations across the genome, mainly in microsatellite sequences, due to a defective mismatch repair system. xref Both MSI‐positive advanced CRCs and precursors of MSI‐H CRCs are closely associated with BRAF or KRAS mutations and high levels of genomic methylation (CIMP‐high). xref , xref However, whether the same theory can be applied to EGC, which has been shown to preferentially develop into hereditary nonpolyposis colorectal cancer (HNPCC), has not been proven."