PMID- 18555988 OWN - NLM STAT- MEDLINE DCOM- 20081024 LR - 20220410 IS - 0014-2999 (Print) IS - 0014-2999 (Linking) VI - 589 IP - 1-3 DP - 2008 Jul 28 TI - Trehalose: a biophysics approach to modulate the inflammatory response during endotoxic shock. PG - 272-80 LID - 10.1016/j.ejphar.2008.04.005 [doi] AB - We evaluated the effects of trehalose against endotoxic shock, a condition in which the loss of bio-membrane integrity plays a pivotal role. In addition we performed a biophysics experiment by quasi elastic neutron scattering (QENS) study, to investigate whether the membrane stability effect of trehalose might be correlated with its high capability to switch-off the water diffusive dynamics and, hence, the kinetic mechanisms of interaction. Endotoxic shock was induced in male rats by a single injection of Salmonella enteritidis lipopolysaccharide (LPS; 20 mg/kg/i.p.). Thirty minutes before and 2 h after LPS injection, the animals were randomized to receive vehicle (1 ml/kg/i.p. 0.9%NaCl), sucrose (1 g/kg/i.p.) or trehalose (1 g/kg/i.p.). Mean arterial blood pressure, nuclear factor-kappaB (NF-kappaB) binding activity, Ikappa-Balpha and toll-like receptor-4 (TLR-4) activation were evaluated in both liver and lung. Plasmatic tumor necrosis factor-alpha (TNF-alpha), interleukin-1 (IL-1), interleukin-6 (IL-6) and malondialdehyde (MDA) were also investigated. We studied liver injury by means of blood alanine aminotransferase activity (ALT); inducible nitric oxide synthase (iNOS) expression, myeloperoxidase (MPO) activity and tissue edema evaluation. Lung injury was investigated by means of tissue monocyte chemoattractant protein-1 (MCP-1) levels, MPO activity, iNOS expression and edema formation. Trehalose reduced hypotension, NF-kappaB binding activity, IkappaBalpha protein loss and TLR-4 activation. In addition trehalose reduced TNF-alpha, IL-1, IL-6 and MDA levels. Trehalose also blunted liver and lung injury. QENS measurements showed also that trehalose possesses a high "switching off" capability. Sucrose did not modify endotoxic shock-induced sequelae. Trehalose blocked the inflammatory cascade triggered by endotoxin shock, stabilizing the bio-membranes and switching off the water diffusive dynamics. FAU - Minutoli, Letteria AU - Minutoli L AD - Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy. FAU - Altavilla, Domenica AU - Altavilla D FAU - Bitto, Alessandra AU - Bitto A FAU - Polito, Francesca AU - Polito F FAU - Bellocco, Ersilia AU - Bellocco E FAU - Lagana, Giuseppina AU - Lagana G FAU - Fiumara, Tiziana AU - Fiumara T FAU - Magazu, Salvatore AU - Magazu S FAU - Migliardo, Federica AU - Migliardo F FAU - Venuti, Francesco Saverio AU - Venuti FS FAU - Squadrito, Francesco AU - Squadrito F LA - eng PT - Journal Article DEP - 20080412 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Cytokines) RN - 0 (I-kappa B Proteins) RN - 0 (Lipopolysaccharides) RN - 0 (NF-kappa B) RN - 0 (Nfkbia protein, rat) RN - 0 (Tlr4 protein, rat) RN - 0 (Toll-Like Receptor 4) RN - 059QF0KO0R (Water) RN - 139874-52-5 (NF-KappaB Inhibitor alpha) RN - 31C4KY9ESH (Nitric Oxide) RN - 57-50-1 (Sucrose) RN - B8WCK70T7I (Trehalose) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.13.39 (Nos2 protein, rat) SB - IM MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Biophysical Phenomena MH - Biophysics MH - Blood Pressure/drug effects MH - Cell Membrane/*drug effects/metabolism/pathology MH - Cytokines/blood MH - Diffusion MH - Disease Models, Animal MH - Edema/etiology/prevention & control MH - I-kappa B Proteins/metabolism MH - Lipopolysaccharides MH - Liver/*drug effects/enzymology/pathology MH - Liver Diseases/etiology/metabolism/physiopathology/*prevention & control MH - Lung/*drug effects/enzymology/pathology MH - Lung Diseases/etiology/metabolism/physiopathology/*prevention & control MH - Male MH - Models, Biological MH - NF-KappaB Inhibitor alpha MH - NF-kappa B/metabolism MH - Neutrons MH - Nitric Oxide/metabolism MH - Nitric Oxide Synthase Type II/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Scattering, Radiation MH - Shock, Septic/chemically induced/*drug therapy/metabolism/physiopathology MH - Sucrose/pharmacology MH - Time Factors MH - Toll-Like Receptor 4/metabolism MH - Trehalose/*pharmacology MH - Water/metabolism EDAT- 2008/06/17 09:00 MHDA- 2008/10/25 09:00 CRDT- 2008/06/17 09:00 PHST- 2007/07/11 00:00 [received] PHST- 2008/03/21 00:00 [revised] PHST- 2008/04/02 00:00 [accepted] PHST- 2008/06/17 09:00 [pubmed] PHST- 2008/10/25 09:00 [medline] PHST- 2008/06/17 09:00 [entrez] AID - S0014-2999(08)00399-3 [pii] AID - 10.1016/j.ejphar.2008.04.005 [doi] PST - ppublish SO - Eur J Pharmacol. 2008 Jul 28;589(1-3):272-80. doi: 10.1016/j.ejphar.2008.04.005. Epub 2008 Apr 12.