Effect of Some Anti-Inflammatory Drugs on Human Neutrophil Chemotaxis

1994 ◽  
Vol 22 (2) ◽  
pp. 100-106 ◽  
Author(s):  
G Hasçelik ◽  
B ŞLener ◽  
Z Hasçelik

The effects of piroxicam, tenoxicam, diclofenac sodium, acetylsalicylic acid and tiaprofenic acid on the chemotaxis and random migration of human polymorphonuclear leukocytes were investigated, using zymosan-activated serum as chemo-attractant, with a modified Boyden chamber technique. All five compounds significantly reduced chemotaxis. The random migration of polymorphonuclear leukocytes was inhibited by piroxicam, diclofenac sodium and tiaprofenic acid but not by tenoxicam or acetylsalicylic acid. The inhibitory effect of these non-steroidal anti-inflammatory drugs on polymorphonuclear leukocyte chemotaxis and on random migration was generally dose-dependent. The results suggest that the drugs studied may have a direct effect on polymorphonuclear leukocyte chemotaxis and that this activity may contribute to their anti-inflammatory properties.

2021 ◽  
Vol 14 (7) ◽  
pp. 692
Author(s):  
Ryldene Marques Duarte da Cruz ◽  
Francisco Jaime Bezerra Mendonça-Junior ◽  
Natália Barbosa de Mélo ◽  
Luciana Scotti ◽  
Rodrigo Santos Aquino de Araújo ◽  
...  

Rheumatoid arthritis, arthrosis and gout, among other chronic inflammatory diseases are public health problems and represent major therapeutic challenges. Non-steroidal anti-inflammatory drugs (NSAIDs) are the most prescribed clinical treatments, despite their severe side effects and their exclusive action in improving symptoms, without effectively promoting the cure. However, recent advances in the fields of pharmacology, medicinal chemistry, and chemoinformatics have provided valuable information and opportunities for development of new anti-inflammatory drug candidates. For drug design and discovery, thiophene derivatives are privileged structures. Thiophene-based compounds, like the commercial drugs Tinoridine and Tiaprofenic acid, are known for their anti-inflammatory properties. The present review provides an update on the role of thiophene-based derivatives in inflammation. Studies on mechanisms of action, interactions with receptors (especially against cyclooxygenase (COX) and lipoxygenase (LOX)), and structure-activity relationships are also presented and discussed. The results demonstrate the importance of thiophene-based compounds as privileged structures for the design and discovery of novel anti-inflammatory agents. The studies reveal important structural characteristics. The presence of carboxylic acids, esters, amines, and amides, as well as methyl and methoxy groups, has been frequently described, and highlights the importance of these groups for anti-inflammatory activity and biological target recognition, especially for inhibition of COX and LOX enzymes.


2021 ◽  
Vol 23 (3) ◽  
Author(s):  
V. V. Buheruk ◽  
O. B. Voloshyna ◽  
L. I. Kovalchuk ◽  
I. V. Balashova ◽  
O. V. Naidionova

The aim of this review is to analyze and summarize the existing evidence regarding the possibilities of using acetylsalicylic acid (ASA) and other non-steroidal anti-inflammatory drugs (NSAIDs) to reduce cancer risk. Conclusions. Chronic inflammation facilitates the onset and progress of tumour growth. Anti-cancer properties of acetylsalicylic acid and other non-steroidal anti-inflammatory drugs are mediated via cyclooxygenase COX-dependent mechanisms, as well as other tumorigenic pathways. Current systematic review addresses potential role of ASA and other NSAIDs in reduction of cancer risk for the following localizations: head and neck, lungs, gastrointestinal tract, breast, ovaries, prostate, and skin. The role of ASA in primary prevention of colorectal cancer in specific populations is presented in 2016 U. S. Preventive Services Task Force guidelines. Studies indicate heterogeneous protective potential of ASA against different cancer types, depending on studied population, duration of intake and dose. Influence of non-aspirin NSAIDs on cancer morbidity and mortality is more controversial.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Mirghani HO

Background: Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) is a serious disease. The role of nonsteroidal anti-inflammatory drugs (NSAIDs) in the prevention of PEP is conflicting. Objectives: This review aimed to assess the preventive role of NSAIDs in PEP with special emphasis on the dose and route of administration. Methods: We searched PubMed and Google Scholar for relevant observational studies published in English during the period from January 2010 to January 2020. The terms post-ERCP pancreatitis, diclofenac sodium, indomethacin, NSAIDs, dose, route of administration were used. Results: Of the 179 identified, 19 full texts were screened and included in the review. Ten studies were from Europe, seven from Asia and two were published in the USA, the studies showed that NSAIDs were effective in preventing PEP when used rectally or intramuscularly, higher doses are more efficacious and the combination with stents was not superior, careful patients selection is needed in particular regarding the body mass index. Conclusion: NSAIDs were effective in PEP prevention; however, the evidence is weak due to the observational nature and the different methods used in the included studies. Randomized controlled studies are needed to solve the issue.


1979 ◽  
Vol 236 (1) ◽  
pp. C22-C29 ◽  
Author(s):  
A. Takeuchi ◽  
R. H. Persellin

The density of neutrophils influences the number of cells that will respond to a chemoattractant, endotoxin-activated serium. When fewer than 3 x 10(5) polymorphonuclear leukocytes (PMN) were placed in the top compartment of a modified Boyden chemotaxis chamber, the cellular response was weak. Complete membrane penetration by activated neutrophils rarely was observed. When this number of PMN was exceeded, however, both the number of cells and the percentage of neutrophils responding to the leukoattractant increased. The density of cells required for effective chemotactic response to occur was such that intimate cell-to-cell contact was suggested. This indicated that PMN exerted a kinetic influence upon one another. Extracts of disrupted PMN induced an otherwise insufficient number of neutrophils to respond to the chemotactic stimulus. The active component was isolated in the cytoplasmic fraction (postcentrifugation, 100,000 x g, 60 min) of PMN, but was not present in other subcellular fractions. This cytoplasmic augmentor of chemotaxis (CACh) increased random mobility of neutrophils, but was not, itself, a chemotactic factor. These findings suggest that PMN cooperate in their response to a leukotactic stimulus.


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