PMID- 21549694 OWN - NLM STAT- MEDLINE DCOM- 20110930 LR - 20151119 IS - 1879-0712 (Electronic) IS - 0014-2999 (Linking) VI - 662 IP - 1-3 DP - 2011 Jul 15 TI - Embelin reduces cutaneous TNF-alpha level and ameliorates skin edema in acute and chronic model of skin inflammation in mice. PG - 63-9 LID - 10.1016/j.ejphar.2011.04.037 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha) is known to play a crucial role in the pathogenesis of psoriasis. The present study was designed to investigate the effects of embelin on lipopolysachharide induced TNF-alpha production in mice and in human keratinocytes in vitro and also to study the effect of embelin on acute and chronic skin inflammation in mice. Production of pro-inflammatory cytokines (TNF-alpha and IL-1beta), activation of myeloperoxidase and histological assessment were examined in acute and chronic skin inflammation using 12-O-tetradecanoyl-phorbol-13-acetate (TPA)-induced mouse ear edema. Embelin inhibited topical edema in the mouse ear, leading to substantial reductions in skin thickness and tissue weight, inflammatory cytokine production, neutrophil-mediated myeloperoxidase activity, and various histopathological indicators. Furthermore, embelin was effective at reducing inflammatory damage induced by chronic TPA exposure. Our data indicate that embelin has anti-inflammatory activities in both acute and chronic irritant contact dermatitis in vivo and this effect of embelin may be due, at least in part, to the inhibition of IL-1beta and TNF-alpha and to the subsequent blockade of leukocyte accumulation. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Kalyan Kumar, G AU - Kalyan Kumar G AD - Post-Graduate Research Center, Department of Plant Biology and Biotechnology, Presidency College, Chennai, Tamil Nadu, India. kalyanmicro@hotmail.com FAU - Dhamotharan, R AU - Dhamotharan R FAU - Kulkarni, Nagaraj M AU - Kulkarni NM FAU - Mahat, Mahamad Yunnus A AU - Mahat MY FAU - Gunasekaran, J AU - Gunasekaran J FAU - Ashfaque, Mohammad AU - Ashfaque M LA - eng PT - Journal Article DEP - 20110430 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Benzoquinones) RN - 0 (Cytokines) RN - 0 (Lipopolysaccharides) RN - 0 (Tumor Necrosis Factor-alpha) RN - NI40JAQ945 (Tetradecanoylphorbol Acetate) RN - SHC6U8F5ER (embelin) SB - IM MH - Acute Disease MH - Adult MH - Animals MH - Benzoquinones/chemistry/*pharmacology/therapeutic use MH - Chronic Disease MH - Cytokines/biosynthesis MH - Disease Models, Animal MH - Ear Diseases/chemically induced/drug therapy/metabolism MH - Edema/chemically induced/*drug therapy/*metabolism MH - Female MH - Humans MH - Inflammation/chemically induced/drug therapy/metabolism MH - Keratinocytes/drug effects/metabolism MH - Lipopolysaccharides/pharmacology MH - Mice MH - Mice, Inbred BALB C MH - Skin Diseases/chemically induced/*drug therapy/*metabolism MH - Tetradecanoylphorbol Acetate/pharmacology MH - Tumor Necrosis Factor-alpha/biosynthesis/*metabolism EDAT- 2011/05/10 06:00 MHDA- 2011/10/01 06:00 CRDT- 2011/05/10 06:00 PHST- 2010/11/20 00:00 [received] PHST- 2011/03/31 00:00 [revised] PHST- 2011/04/14 00:00 [accepted] PHST- 2011/05/10 06:00 [entrez] PHST- 2011/05/10 06:00 [pubmed] PHST- 2011/10/01 06:00 [medline] AID - S0014-2999(11)00446-8 [pii] AID - 10.1016/j.ejphar.2011.04.037 [doi] PST - ppublish SO - Eur J Pharmacol. 2011 Jul 15;662(1-3):63-9. doi: 10.1016/j.ejphar.2011.04.037. Epub 2011 Apr 30.