For example, circSHKBP1 transported by exosomes to gastric cancer cells not only regulates the miR‐582‐3p/HUR/vascular endothelial growth factor (VEGF) axis but also sponges the HSP90 protein and blocks the interaction with STUB1 of HSP90 to inhibit the ubiquitination of HSP90.47 Here, ELAVL1 is linked to gastric cancer.