N-Cadherin Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

N-Cadherin, also referred to as Neural Cadherin (NCAD) or Cadherin-2 (CHD2), is a 130 kDa protein that is a member of the calcium-dependent adhesion molecule family of classical (type I) cadherins (1-4). Under the CDH2 gene, human N-cadherin is synthesized as a 906 amino acid protein with a theoretical molecular weight of 99.8 kDa (5). The N-cadherin protein structure is similar to other classical type I cadherins including epithelial (E-) cadherin and placental (P-) cadherin (1,2). N-cadherin consists of a 25 amino acid (aa) N-terminal signal peptide and 134 aa pro-peptide, a 565 aa extracellular domain (ECD) with five cadherin repeats, a 21 aa transmembrane segment, and a 161 aa cytoplasmic domain (1-3,5). The ECD of N-cadherin monomers is responsible for homotypic binding through either cis or trans adhesion (2,3).

N-cadherin is expressed on multiple cell types but is most highly expressed by mesenchymal cells and neural tissue (2). Functionally, N-cadherin has a number of roles including maintaining structural integrity and adhesion, cell signaling, and formation of neuronal synapses and the vascular wall (2). The cytoplasmic tail interacts with beta-catenin which then binds with alpha-catenin, forming the cadherin-catenin adhesion complex, an important component of adhesions junctions (1-3). Given its role in adhesion, N-cadherin serves as an indicator of epithelial-to-mesenchymal transition (EMT) (1-4). The loss of E-cadherin during EMT corresponds with an increase in N-cadherin expression (1-4). This "cadherin-switch" is associated with increased migratory and invasive behavior observed in tumor progress (1-4). Proteases including activity of a disintegrin and metalloprotease 10 (ADAM10), matrix metalloproteinases (MMPs), caspase 3, presenilin, and calpain can cleave N-cadherin as a mechanism for regulating Wnt/beta-catenin signaling and inducing oncogenic signals (3,4). In addition to its expression in solid tumors, N-cadherin has been indicated in hematological disorders such as leukemia and multiple myeloma (1). N-cadherin antagonists are currently being studied as potential therapeutics for a variety of cancer studies (1-2).

References

1. Mrozik, K. M., Blaschuk, O. W., Cheong, C. M., Zannettino, A., & Vandyke, K. (2018). N-cadherin in cancer metastasis, its emerging role in haematological malignancies and potential as a therapeutic target in cancer. BMC Cancer. https://doi.org/10.1186/s12885-018-4845-0

2. Loh, C. Y., Chai, J. Y., Tang, T. F., Wong, W. F., Sethi, G., Shanmugam, M. K., Chong, P. P., & Looi, C. Y. (2019). The E-Cadherin and N-Cadherin Switch in Epithelial-to-Mesenchymal Transition: Signaling, Therapeutic Implications, and Challenges. Cells. https://doi.org/10.3390/cells8101118

3. Derycke, L. D., & Bracke, M. E. (2004). N-cadherin in the spotlight of cell-cell adhesion, differentiation, embryogenesis, invasion and signalling. The International Journal of Developmental Biology. https://doi.org/10.1387/ijdb.041793ld

4. Yu, W., Yang, L., Li, T., & Zhang, Y. (2019). Cadherin Signaling in Cancer: Its Functions and Role as a Therapeutic Target. Frontiers in Oncology. https://doi.org/10.3389/fonc.2019.00989

5. Unitprot (P1903)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

Array NBL1-09030

• N-Cadherin Antibodies
• N-Cadherin ELISA Kits
• N-Cadherin Lysate
• N-Cadherin Proteins
• N-Cadherin Proteins and Enzymes
• N-Cadherin ELISA