PMID- 21315792 OWN - NLM STAT- MEDLINE DCOM- 20110915 LR - 20191210 IS - 1638-6183 (Electronic) IS - 0300-9084 (Linking) VI - 93 IP - 5 DP - 2011 May TI - 2-Methyl-pyran-4-one-3-O-beta-D-glucopyranoside isolated from leaves of Punica granatum inhibits the TNFalpha-induced cell adhesion molecules expression by blocking nuclear transcription factor-kappaB (NF-kappaB). PG - 921-30 LID - 10.1016/j.biochi.2011.01.010 [doi] AB - Here, we report bioactivity-guided isolation, purification and characterization of a novel compound, 2-methyl-pyran-4-one-3-O-beta-d-glucopyranoside (MPG) from the leaves of Punica granatum. The structure of MPG was established on the basis of its detailed spectral analyses. We demonstrated that MPG not only inhibited the expression of cell adhesion molecules but also significantly blocked its functional consequence, that is, the adhesion of neutrophils on human endothelial cells monolayer. To elucidate the molecular mechanism of action of MPG, we showed that MPG decreased the transcript levels of ICAM-1, VCAM-1 and E-selectin genes. Using electrophoretic mobility shift assay (EMSA) and western blot analyses, we demonstrated that MPG significantly blocked both the TNFalpha-induced translocation and activation of nuclear transcription factor-kappaB (NF-kappaB). Thus, MPG could be useful as a novel lead molecule for developing future anti-inflammatory agents. CI - Copyright (c) 2011 Elsevier Masson SAS. All rights reserved. FAU - Balwani, Sakshi AU - Balwani S AD - Institute of Genomics & Integrative Biology (Unit of C.S.I.R.), Mall Road, Delhi 110 007, India. FAU - Nandi, Debkumar AU - Nandi D FAU - Jaisankar, Parasuraman AU - Jaisankar P FAU - Ghosh, Balaram AU - Ghosh B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110217 PL - France TA - Biochimie JT - Biochimie JID - 1264604 RN - 0 (2-methyl-pyran-4-one-3-O-beta-D-glucopyranoside) RN - 0 (Cell Adhesion Molecules) RN - 0 (Cytotoxins) RN - 0 (E-Selectin) RN - 0 (Glucosides) RN - 0 (NF-kappa B) RN - 0 (Plant Extracts) RN - 0 (SELE protein, human) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Cell Adhesion Molecules/genetics/*metabolism MH - Cell Survival/drug effects MH - Cells, Cultured MH - Coculture Techniques MH - Cytotoxins/chemistry/isolation & purification/*pharmacology MH - E-Selectin/genetics/metabolism MH - Endothelial Cells/drug effects/metabolism MH - Glucosides/chemistry/isolation & purification/*pharmacology MH - Humans MH - Intercellular Adhesion Molecule-1/genetics/metabolism MH - Lythraceae/*chemistry MH - Maximum Tolerated Dose MH - Molecular Conformation MH - NF-kappa B/*antagonists & inhibitors MH - Neutrophils/metabolism MH - Plant Extracts MH - Plant Leaves/*chemistry MH - Protein Transport/drug effects MH - Transcription, Genetic/drug effects MH - Tumor Necrosis Factor-alpha/*antagonists & inhibitors MH - Umbilical Cord/cytology MH - Vascular Cell Adhesion Molecule-1/genetics/metabolism EDAT- 2011/02/15 06:00 MHDA- 2011/09/16 06:00 CRDT- 2011/02/15 06:00 PHST- 2010/10/06 00:00 [received] PHST- 2011/01/20 00:00 [accepted] PHST- 2011/02/15 06:00 [entrez] PHST- 2011/02/15 06:00 [pubmed] PHST- 2011/09/16 06:00 [medline] AID - S0300-9084(11)00016-2 [pii] AID - 10.1016/j.biochi.2011.01.010 [doi] PST - ppublish SO - Biochimie. 2011 May;93(5):921-30. doi: 10.1016/j.biochi.2011.01.010. Epub 2011 Feb 17.