Investigation of MicroRNA-21 expression levels in serum and stool as a potential non-invasive biomarker for diagnosis of colorectal cancer

ABSTRACT

Background: Most cancer studies focus on exploring non-invasive biomarkers for cancer detection. In the present study, we sought to investigate the expression level of microRNA-21 [miR-21], as a potential diagnostic marker, in serum and stool samples from 40 patients with colorectal cancer [CRC] and 40 healthy controls