Netrin 1  Netrin-1 is a protein that in humans is encoded by the "NTN1" gene. Netrin is included in a family of laminin-related secreted proteins. The function of this gene has not yet been defined; however, netrin is thought to be involved in axon guidance and cell migration during development. Mutations and loss of expression of netrin suggest that variation in netrin may be involved in cancer development. NTN1 has been shown to interact with Deleted in Colorectal Cancer. Varadarajan, Supraja G., et al. "Netrin1 produced by neural progenitors, not floor plate cells, is required for axon guidance in the spinal cord." Neuron 94.4 (2017): 790-799. https://doi.org/10.1016/j.neuron.2017.03.007