In our study, we have explored the potential anti‐angiogenic activities of an extract of A platensis, a freshwater blue‐green alga commonly used as a nutraceutical.33 Indeed, the apparent antiproliferative effects of A platensis seen in our previous studies4 might at least partially be due to the lowered vascularization of the pancreatic tumours, as evidenced by decreased expression of CD31, together with a lowered invasion potential of the treated cells. The gene discussed is PECAM1; the disease is pancreatic neoplasm.