Abstract:
:A 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.
journal_name
Toxicol Appl Pharmacoljournal_title
Toxicology and applied pharmacologyauthors
Cheng H,Mollica MY,Lee SH,Wang L,Velázquez-Martínez CA,Wu Sdoi
10.1016/j.taap.2012.07.029subject
Has Abstractpub_date
2012-10-15 00:00:00pages
161-6issue
2eissn
0041-008Xissn
1096-0333pii
S0041-008X(12)00330-4journal_volume
264pub_type
杂志文章abstract::Primary mixed cultures of Sertoli and germ cells were prepared from testes of immature rats and their response to the known testicular toxicants ethylene glycol monomethyl ether (EGM) and ethylene glycol monoethyl ether (EGE) was studied. Neither EGM nor EGE produced any morphological evidence of toxicity when added t...
journal_title:Toxicology and applied pharmacology
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journal_title:Toxicology and applied pharmacology
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journal_title:Toxicology and applied pharmacology
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