On the other hand, invariant NKT cells, which can inhibit tumor angiogenesis via IFNγ, were significantly reduced in low when compared to normal protein diet placentas, with lower mRNA expression in IFNγ expression, indicating the occurrence of angiogenesis in low protein diet placenta, as evidenced by the greater density of CD31/PECAM (platelet endothelial cell adhesion molecule). The gene discussed is PECAM1; the disease is neoplasm.