@article {8056, title = {RelB activation in anti-inflammatory decidual endothelial cells: a master plan to avoid pregnancy failure?}, journal = {Sci Rep}, volume = {5}, year = {2015}, month = {2015}, pages = {14847}, abstract = {

It is known that excessive inflammation at fetal-maternal interface is a key contributor in a compromised pregnancy. Female genital tract is constantly in contact with microorganisms and several strategies must be adopted to avoid pregnancy failure. Decidual endothelial cells (DECs) lining decidual microvascular vessels are the first cells that interact with pro-inflammatory stimuli released into the environment by microorganisms derived from gestational tissues or systemic circulation. Here, we show that DECs are hypo-responsive to LPS stimulation in terms of IL-6, CXCL8 and CCL2 production. Our results demonstrate that DECs express low levels of TLR4 and are characterized by a strong constitutive activation of the non-canonical NF-κB pathway and a low responsiveness of the canonical pathway to LPS. In conclusion, DECs show a unique hypo-responsive phenotype to the pro-inflammatory stimulus LPS in order to control the inflammatory response at feto-maternal interface.

}, issn = {2045-2322}, doi = {10.1038/srep14847}, author = {Masat, Elisa and Gasparini, Chiara and Agostinis, Chiara and Bossi, Fleur and Radillo, Oriano and De Seta, Francesco and Tamassia, Nicola and Cassatella, Marco A and Bulla, Roberta} } @article {3560, title = {Human recombinant lysozyme downregulates advanced glycation endproduct-induced interleukin-6 production and release in an in-vitro model of human proximal tubular epithelial cells.}, journal = {Exp Biol Med (Maywood)}, volume = {239}, year = {2014}, month = {2014 Mar}, pages = {337-46}, abstract = {

Diabetic nephropathy is the leading cause of chronic renal disease and one of the major causes of cardiovascular mortality. Evidence suggests that its progression is due to the chronic hyperglycemia consequent to the production and accumulation of advanced glycation endproducts (AGEs). Lysozyme was shown to posses AGE-sequestering properties and the capacity to reduce the severity of the early stage manifestations of the diabetic nephropathy. This study was aimed to contribute to the understanding the molecular mechanisms of lysozyme effectiveness in the diabetic nephropathy, using an in-vitro cellular model, represented by the HK-2 cells, human proximal tubular epithelial cells. Lysozyme significantly reduced the AGE-induced IL-6 mRNA and an ELISA assay showed also a decreased release of the functional protein with a dose-dependent trend. In addition, lysozyme prevented macrophage recruitment, suggesting its capacity to elicit an anti-inflammatory action. We may conclude that the protective action of lysozyme on the nephrotoxic effects of AGE may depend, at least in part, on its ability to prevent the production and release of inflammatory mediators, such as IL-6 and to reduce macrophage recruitment in the inflammatory sites.

}, keywords = {Cell Line, Cell Movement, Cell Survival, Chemokine CX3CL1, Diabetic Nephropathies, Down-Regulation, Epithelial Cells, Glycosylation End Products, Advanced, Humans, Inflammation Mediators, Interleukin-18, Interleukin-6, Kidney Tubules, Proximal, Macrophage Activation, Macrophages, Muramidase, Recombinant Proteins, RNA, Messenger, Tumor Necrosis Factor-alpha, U937 Cells}, issn = {1535-3699}, doi = {10.1177/1535370213518281}, author = {Gallo, Davide and Cocchietto, Moreno and Masat, Elisa and Agostinis, Chiara and Harei, Elisa and Veronesi, Paolo and Sava, Gianni} } @article {1846, title = {MBL interferes with endovascular trophoblast invasion in pre-eclampsia.}, journal = {Clin Dev Immunol}, volume = {2012}, year = {2012}, month = {2012}, pages = {484321}, abstract = {

The spiral arteries undergo physiologic changes during pregnancy, and the failure of this process may lead to a spectrum of pregnancy disorders, including pre-eclampsia. Our recent data indicate that decidual endothelial cells (DECs), covering the inner side of the spiral arteries, acquire the ability to synthesize C1q, which acts as a link between endovascular trophoblast and DECs favouring the process of vascular remodelling. In this study, we have shown that sera obtained from pre-eclamptic patients strongly inhibit the interaction between extravillous trophoblast (EVT) and DECs, preventing endovascular invasion of trophoblast cells. We further demonstrated that mannose-binding lectin (MBL), one of the factor increased in pre-eclamptic patient sera, strongly inhibits the interaction of EVT with C1q interfering with the process of EVT adhesion to and migration through DECs. These data suggest that the increased level of MBL in pre-eclampsia may contribute to the failure of the endovascular invasion of trophoblast cells.

}, keywords = {Cell Communication, Decidua, Endothelial Cells, Female, Humans, Mannose-Binding Lectin, Pre-Eclampsia, Pregnancy, Transendothelial and Transepithelial Migration, Trophoblasts}, issn = {1740-2530}, doi = {10.1155/2012/484321}, author = {Agostinis, Chiara and Bossi, Fleur and Masat, Elisa and Radillo, Oriano and Tonon, Maddalena and De Seta, Francesco and Tedesco, Francesco and Bulla, Roberta} }