Previously, using RNA-seq technology, we observed marked up-regulation of a RBL in channel catfish (Ictalurus

punctatus) gill following PP2 in vivo a challenge with the bacterial pathogen Flavobacterium columnare. Furthermore, the magnitude of RBL up-regulation positively correlated with disease susceptibility. Moving forward from these findings, we wished to more broadly understand RBL function, diversity, and expression kinetics in channel catfish. Therefore, in the present study we characterized the RBL gene family present in select channel catfish tissues and profiled family member expression after challenge with two different Gram-negative bacterial pathogens. Here, six RBLs were identified from channel catfish and AZD1152 solubility dmso were designated IpRBL1a, IpRBL1b, IpRBL1c, IpRBL3a, IpRBL3b, and IpRBL5a. These RBLs contained

carbohydrate recognition domains (CRD) ranging from one to three domains and each CRD contained the conserved motifs of -YGR- and -DPC-. Despite a level of structural conservation, the catfish RBLs showed low full-length identity with RBLs from outside the order Siluriformes. IpRBL expression after bacterial infection varied depending on both pathogen and tissue type, suggesting that IpRBLs may exert disparate functions or exhibit distinct tissue-selective roles in the host immune response to bacterial pathogens. (C) 2014 Elsevier Ltd. All rights reserved.”
“Objective: An increasing number of epidemiological studies suggest that chronic low-dose irradiation increases the risk of atherosclerosis. We evaluated and compared the in vitro biological effects of both single and fractionated low-doses of X-ray irradiation on endothelial cells. Methods: Human umbilical vein endothelial cells (HUVECs) were irradiated with

X-rays, with single doses of 0.125, 0.25 and 0.5 Gy or fractionated doses of 2 x 0.125 Gy and 2 x 0.25 Gy, with 24 h interfraction interval. Survival, apoptosis, reactive oxygen species (ROS) production, nuclear factor-kappa B (NF-kappa B) activation, intercellular adhesion molecule-1 (ICAM-1) expression, HUVEC adhesiveness and DNA damage were investigated. Results: We did not observe any effect on viability and apoptosis. Both single and fractionated doses induced ROS Selleckchem PF2341066 generation, NF-kappa B activation, ICAM-1 protein expression and HUVEC adhesiveness, but only fractionated doses increase significantly ICAM-1 mRNA. The effects measured after fractionated dose result always higher than those induced by the single dose. Moreover, we observed that DNA double strand break (DSB), visualized with gamma-H2AX foci, is dose-dependent and that the kinetics of gamma-H2AX foci is not affected by fractionated doses. Conclusions: We showed that single and fractionated low-dose irradiations with low energy X-rays do not affect cell viability and DNA repair.