YBX1 and gastric cancer: In vitro angiogenesis studies on HUVECs and SGC-7901 GC cells have shown that YB-1-overexpresseing GC exos promote increased neovasculature and tube formation as compared to negative controls and phosphate buffered saline; a lentivirus vector transfered the YBX1gene sequence into the HUVECs, leading to angiogenic effects.