SLC2A4 and colorectal carcinoma: Subsequently, to explore the mechanism by which MDSCs utilize PTX-Rg3-lipo, publicly available single-cell RNA sequencing (scRNA-Seq) data from patients with CRC were used to determine the expression levels of the glucose transporter isoforms GLUT1, GLUT2, GLUT3, and GLUT4 in various compartments of the tumor microenvironment.