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Antiarthritic and antiinflammatory propensity of 4-methylesculetin, a coumarin derivative.

Abstract：

:Coumarins are a group of natural compounds widely distributed in plants. Of late, coumarins and their derivatives have grabbed much attention from the pharmacological and pharmaceutical arena due to their broad range of therapeutical qualities. A coumarin derivative 4-methylesculetin (4-ME) has known to possess effective antioxidant and radical-scavenging properties. Recently they have also shown to down regulate nuclear factor-kappa B (NF-κB) and protein kinase B (Akt) that play a vital role in inflammation and apoptosis. In view of this, the present study investigated the anti-arthritic potentiality of 4-ME by assessing its ability to inhibit cartilage and bone degeneration, inflammation and associated oxidative stress. Arthritis being a debilitating joint disease, results in the deterioration of extracellular matrix (ECM) of cartilage and synovium. Participation of both enzymatic and non-enzymatic factors in disease perpetuation is well documented. The present study demonstrated the mitigation of augmented serum levels of hyaluronidase and matrix metalloproteinases (MMP-13, MMP-3 and MMP-9) responsible for cartilage degeneration by 4-ME. It also protected bone resorption by reducing the elevated levels of bone-joint exoglycosidases, cathepsin-D and tartrate resistant acid phosphatases. Further, 4-ME significantly ameliorated the upregulated non-enzymatic inflammatory markers like TNF-α, IL-1β, IL-6, COX-2 and PGE2. Besides, 4-ME effectively stabilized the arthritis-induced oxidative stress by restoring the levels of reactive oxygen species, lipid and hydro peroxides and antioxidant enzymes such as superoxide dismutase, catalase and glutathione-S-transferase. Thus, the study suggests that 4-ME could be an effective agent to treat arthritis and associated secondary complications like oxidative stress.

journal_name

Biochimie

journal_title

Biochimie

authors

Hemshekhar M,Sunitha K,Thushara RM,Sebastin Santhosh M,Shanmuga Sundaram M,Kemparaju K,Girish KS

doi

10.1016/j.biochi.2013.02.014

subject

Has Abstract

pub_date

2013-06-01 00:00:00

pages

1326-35

issue

eissn

0300-9084

issn

1638-6183

pii

S0300-9084(13)00071-0

journal_volume

pub_type

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Antiarthritic and antiinflammatory propensity of 4-methylesculetin, a coumarin derivative.