36 More recently, it has been discovered that transmembrane glycoprotein Mucin 1 is associated with NRP‐1 and is responsible for inducing VEGF signaling as well as angiogenesis in the tumor environment.37 The following sections of the review will shed light upon the important functions played by NRPs that contribute to some of the cancer hallmarks as described by Hanahan and Weinberg as well as other cancer‐promoting events.38 Here, MUC1 is linked to cancer.