Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) have been used for nearly a century for alleviation of symptoms of acute and chronic inflammation and represent one of the most used groups of drugs in the general population. NSAIDs group is very numerous and it includes different chemical structures. The main mechanism of action of these drugs is the inhibition of enzyme cyclooxygenase (COX) which catalyzes prostaglandin production (of which some are inflammatory mediators) from arachidonic acid and depending on whether they inhibit both isoforms (COX-1 and COX-2) and just COX-2 they can be classified as nonselective and selective. The need for finding the new NSAIDs with fewer side effects is still persistent because nonselective NSAIDs often cause gastrointestinal side effects which vary from mild to very serious like bleeding, while some selective are withdrawn because of serious cardiovascular side effects with death outcome. Several epidemiologic studies have shown a negative correlation between NSAID use and the occurrence of Alzheimer`s disease, as well as some types of cancer, particularly colorectal and breast cancer. The development of compounds that would be used in Alzheimer`s disease therapy is direct on structures that exhibit more effects at the same time, one of which is anti-inflammatory effect mediated via COX-2 inhibition. Although chemoprevention mechanisms are not completely delineated, it is indisputable that both COX isoforms play a role in carcinogenesis, and these findings opened a new field of research for the design and synthesis of new COX inhibitors with chemoprotective, antiangiogenic, and cytotoxic activity.
References
Ju Z, Li M, Xu J, Howell D C, Li Z, Chen F. Recent development on COX-2 inhibitors as promising anti-inflammatory agents: The past 10 years. Acta Phar Sin B 2021; https://doi.org/10.1016/j.apsb.2022.01.002
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