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Abstract

Colorectal cancer (CRC) accounts for about 10% of cancer-related mortality in western countries. Increasing ageing population, undesirable modern dietary and high-risk factors like smoking, obesity and low exercise. Chromosomal instability (CIN), CpG island methylator phenotype (CIMP), and microsatellite instability are the three different mechanism that give rise to CRC. It often grows slowly, and customarily doesn’t produce symptoms until reaching a substantial size of several centimeters, which can block the passage of feces and cause cramping, pain, or bleeding which can present as visible bleeding with bowel movements or, rarely, dark “tarry” stools. Most colon tumors develop via a several different processes involving a series of histological, morphological, and genetical changes that accumulate over time to time. New treatments for primary and metastatic colorectal cancer have emerged, like in variety of therapeutic process by preparing chimeric proteins that triggers the cells and stop it from getting severe.

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