Cheng, HuiwenMollica, Molly Y.Lee, ShinheeWang, LeiVelázquez-Martínez, Carlos A.Wua, Shiyong2023-08-142023-08-142012-08-04Cheng, Huiwen, Molly Y. Mollica, Shin Hee Lee, Lei Wang, Carlos A. Velázquez-Martínez, and Shiyong Wu. “Effects of Nitric Oxide-Releasing Nonsteroidal Anti-Inflammatory Drugs (NONO-NSAIDs) on Melanoma Cell Adhesion.” Toxicology and Applied Pharmacology 264, no. 2 (October 15, 2012): 161–66. https://doi.org/10.1016/j.taap.2012.07.029.https://doi.org/10.1016/j.taap.2012.07.029http://hdl.handle.net/11603/29196A new class of nitric oxide (NO•)-releasing nonsteroidal anti-inflammatory drugs (NONO-NSAIDs) were developed in recent years and have shown promising potential as NSAID substitutes due to their gentle nature on cardiovascular and gastrointestinal systems. Since nitric oxide plays a role in regulation of cell adhesion, we assessed the potential use of NONO-NSAIDs as anti-metastasis drugs. In this regard, we compared the effects of NONO-aspirin and a novel NONO-naproxen to those exerted by their respective parent NSAIDs on avidities of human melanoma M624 cells. Both NONO-NSAIDs, but not the corresponding parent NSAIDs, reduced M624 adhesion on vascular cellular adhesion molecule-1 (VCAM-1) by 20–30% and fibronectin by 25–44% under fluid flow conditions and static conditions, respectively. Only NONO-naproxen reduced (~ 56%) the activity of β1 integrin, which binds to α4 integrin to form very late antigen-4 (VLA-4), the ligand of VCAM-1. These results indicate that the diazeniumdiolate (NO•)-donor moiety is critical for reducing the adhesion between VLA-4 and its ligands, while the NSAID moiety can impact the regulation mechanism of melanoma cell adhesion.17 pagesen-USAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)https://creativecommons.org/licenses/by-nc-nd/4.0/Text