BACKGROUND Systemic lupus erythematosus (SLE) is an autoimmune disease with complex pathogenesis in which genes and environmental factors are involved. We aimed at analyzing previously identified loci associated with SLE or with other autoimmune and/or inflammatory disorders (STAT4, IL10, IL23R, IRAK1, PSORS1C1, HCP5, MIR146a, PTPN2, ERAP1, ATG16L1, IRGM) in a sample of Italian SLE patients in ...

Irgm1 (LRG-47) is an interferon-inducible Golgi membrane associated GTPase of the mouse whose disruption causes susceptibility to many different intracellular pathogens. Irgm1 has been variously interpreted as a regulator of homologous effector GTPases of the IRG family, a regulator of phagosome maturation and as an initiator of autophagy in interferon-induced cells. We find that endogenous Irg...

The finding that a variant (T300A) of the autophagyrelated 16-like 1 (ATG16L1) gene is associated with Crohn's disease suggests that the inability to eliminate intestinal intracellular microbes via (macro)autophagy may be involved in the pathogenesis of this disease. The variant induces an autophagy-associated defect in Paneth cells, specialized cells in the crypts of Lieberkuhn within the smal...

Les performances des modèles de Recherche d'Information (RI) sont for-tement liées à leur capacité à représenter le texte. Ces dernières années, portés par les succès en reconnaissance d'image et de parole, de nombreux modèles basés sur les réseaux de neurones et les représentations distri-buées des mots et phrases sont apparus. Quelques modèles ont essayé d'aborder le problème de la RI, dont u...

BACKGROUND Orofacial granulomatosis (OFG) is a rare, inflammatory disorder of the mouth, in which some patients also have intestinal Crohn's disease (CD). The etiology remains largely unknown, although there is a high prevalence of atopy, and oral granulomas are also seen in other immune disorders particularly CD and sarcoidosis. We investigated whether genetic variants associated with an incre...

The recently identified p47 GTPases are one of the most effective cell-autonomous resistance systems known against intracellular pathogens in the mouse. One member of the family, LRG-47, has been shown to be essential for immune control in vivo of Listeria monocytogenes, Toxoplasma gondii, Mycobacterium tuberculosis, and Mycobacterium avium, possibly by promoting acidification of the phagosome....

munity-related GTPase M) and NOD2 (nucleotide-binding oligomerization domain 2)] results in the development of immune-related diseases, such as Crohn’s disease, a chronic inflammatory bowel disease [2] . Autophagy represents an ancient immune defense strategy present in flies. Importantly, as flies lack an adaptive immune system, the function of autophagy in cellintrinsic innate immunity can be...

Although IFN-gamma is essential for host control of mycobacterial infection, the mechanisms by which the cytokine restricts pathogen growth are only partially understood. LRG-47 is an IFN-inducible GTP-binding protein previously shown to be required for IFN-gamma-dependent host resistance to acute Listeria monocytogenes and Toxoplasma gondii infections. To examine the role of LRG-47 in control ...

The GTPase superfamily includes a diversity of molecules whose functions are regulated through the binding and hydrolysis of GTP. This superfamily can be segregated into families of functionally related molecules that typically share amino acid sequence similarity within and around the nucleotide-binding domains. A new family of putative GTPases, including IRG-47, LRG-47, IGTP, and TGTP/Mg21, h...

Successful Expression of Adenovirus E3 CR1 Genes from constructs carrying Adenovirus Tripartite Leader sequences: a technical breakthrough Camden Bair, Poornima Kotha, and Adriana Kajon Over 70 human adenovirus genotypes have been described to date and classified into seven species (HAdV-A to -G). One of the few characteristics distinguishing HAdV genomes of different species is the unique repe...