In the present study, we infected MDA5-knockout mice with V-deficient SeV and found that MDA5 was largely unrelated Bafilomycin A1 chemical structure to the innate immunity that the V protein suppresses in vivo. We therefore investigated the target of the SeV V protein. We previously reported interaction of the V protein with IRF3. Here we extended the observation and showed that the V protein appeared to inhibit translocation
of IRF3 into the nucleus. We also found that the V protein inhibited IRF3 activation when induced by a constitutive active form of IRF3. The V proteins of measles virus and Newcastle disease virus inhibited IRF3 transcriptional activation, as did the V protein of SeV, while the V proteins of mumps virus and Nipah virus did not, and inhibition by these proteins correlated with interaction of each V protein with IRF3. These results indicate
that IRF3 is important as an alternative target of paramyxovirus V proteins.”
“This study investigated the involvement of the adenosinergic system in antiallodynia induced by exercise in an animal model of complex regional pain syndrome type I (CRPS-I). Furthermore, we analyzed the role of the opioid receptors on exercise-induced analgesia. Ischemia/reperfusion (IR) mice, nonexercised and exercised, received intraperitoneal injections of caffeine (10 mg/kg, a non selective adenosine receptor antagonist), 1,3-dipropyl-8-cyclopentyl-xanthine (DPCPX) selleck compound (0.1 mg/kg, a selective adenosine A(1) receptor selleckchem antagonist), ZM241385 (3 mg/kg, a selective adenosine A(2A) receptor antagonist), adenosine deaminase inhibitor erythro-9-(2-hydroxy-3nonyl)
adenine [(EHNA), 5 mg/kg, an adenosine deaminase inhibitor] or naloxone (1 mg/kg, a nonselective opioid receptor antagonist). The results showed that high-intensity swimming exercise reduced mechanical allodynia in an animal model of CRPS-I in mice. The antiallodynic effect caused by exercise was reversed by pretreatment with caffeine, naloxone, DPCPX but it was not modified by ZM241385 treatment. In addition, treatment with EHNA, which suppresses the breakdown of adenosine to inosine, enhanced the pain-relieving effects of the high-intensity swimming exercise. This is the first report demonstrating that repeated sessions of high-intensity swimming exercise attenuate mechanical allodynia in an animal model of CRPS-I and that the mechanism involves endogenous adenosine and adenosine A(1) receptors. This study supports the use of high-intensity exercise as an adjunct therapy for CRPS-I treatment. (C) 2012 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Purpose: Previously, we reported that glycine N-methyltransferase (GNMT) interacts with benzo[a]pyrene (BaP) and inhibits BaP-DNA adducts formation. In addition, Gnmt knockout (Gnmt(-/-)) mice developed chronic hepatitis and hepatocellular carcinoma (HCC).