Anti-Netrin 1/NTN1 Antibody Picoband®

Netrin-1 (NTN1), also known as NTN1L, is a diffusible protein made by floor plate cells. Netrin-1 is found in the floor plate and neuroepithelial cells of the ventral region of the spinal cord, as well as other locations in the nervous system including the somatic mesoderm, pancreas and cardiac muscle. The human NTN1 gene is mapped to chromosome 17p13-p12 by FISH. Netrin-1 can attract spinal commissural axons and repel trochlear axons in vitro. And netrin-1 expression confers a selective advantage for tumor cell survival. The binding of netrin-1 to DCC appears to depend on the presence of a coreceptor or accessory proteins. Adenosine A2b receptor is actually a netrin-1 receptor and induces cAMP accumulation on binding netrin-1, and that netrin-1-dependent outgrowth of dorsal spinal cord axons ly involves A2b. Netrin-1 can promote intestinal tumor development, probably by regulating cell survival. Thus, a netrin-1 receptor or receptors function as conditional tumor suppressors. Expression of Unc5b triggered endothelial cell repulsion in response to netrin-1 in vitro, whereas a truncated Unc5b lacking the intracellular signaling domain failed to induce repulsion.

Widely expressed in normal adult tissues with highest levels in heart, small intestine, colon, liver and prostate. Reduced expression in brain tumors and neuroblastomas. Expressed in epididymis (at protein level) . .

Axonal Guidance Proteins, Cytoskeleton/ECM, ECM Proteins, Extracellular Matrix, Growth and Development, Neurogenesis, Neurology Process, Neuroscience, Signal Transduction

Netrins control guidance of CNS commissural axons and peripheral motor axons. Its association with either DCC or some UNC5 receptors will lead to axon attraction or repulsion, respectively. It also serve as a survival factor via its association with its receptors which prevent the initiation of apoptosis. Involved in tumorigenesis by regulating apoptosis. .

1. Colon-Ramos, D. A., Margeta, M. A., Shen, K. Glia promote local synaptogenesis through UNC-6 (netrin) signaling in C. elegans. Science 318: 103-106, 2007. 2. Corset, V., Nguyen-Ba-Charvet, K. T., Forcet, C., Moyse, E., Chedotal, A., Mehlen, P. Netrin-1-mediated axon outgrowth and cAMP production requires interaction with adenosine A2b receptor. Nature 407: 747-750, 2000. 3. Powell AW, Sassa T, Wu Y, Tessier-Lavigne M, Polleux F (May 2008) . Ghosh, Anirvan. ed. Topography of thalamic projections requires attractive and repulsive functions of Netrin-1 in the ventral telencephalon.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.