Exosomes derived from cancer-associated fibroblasts promote tumorigenesis, metastasis and chemoresistance of colorectal cancer by upregulating circ_0067557 to target Lin28
Abstract Background Cancer associated fibroblasts (CAFs) can remodel tumor microenvironment by secreting exosomes.This study aimed to investigate the role of exosomes derived from cancer-associated fibroblasts in colorectal cancer (CRC) progression.Methods Circular RNA (circRNA) array was used to identify differentially expressed circRNAs in exosom