Autophagy induced by nutrient depletion is involved in survival during starvation conditions. In addition to starvation-induced autophagy, the yeast Saccharomyces cerevisiae also has a constitutive autophagy-like system, the Cvt pathway. Among 31 autophagy-related (Atg) proteins, the function of Atg17, Atg29, and Atg31 is required specifically for autophagy. In this study, we investigated the r...

Cell-autonomous immunity to the bacterial pathogen Chlamydia trachomatis and the protozoan pathogen Toxoplasma gondii is controlled by two families of Interferon (IFN)-inducible GTPases: Immunity Related GTPases (IRGs) and Guanylate binding proteins (Gbps). Members of these two GTPase families associate with pathogen-containing vacuoles (PVs) and solicit antimicrobial resistance pathways specif...

Highly purified C'1 esterase of human serum is capable of inactivating isolated fourth component of human complement (beta(1E)-globulin). Inactivation is accompanied by changes in electrophoretic and ultracentrifugal properties of beta(1E)-globulin. If non-sensitized sheep erythrocytes are present during the action of C'1 esterase on beta(1E)-globulin, a complex is formed consisting of cells an...

Therapy with anti-lymphocyte and anti-thymocyte globulins, two animal-derived preparations used as immunosuppressive agents, results in high concentrations of foreign immunoglobulin circulating in plasma. We describe a case that illustrates how the presence of these immunoglobulins can interfere with double-antibody radioimmunoassay procedures.

Intracerebral inoculation of vaccinia virus into adult DDD mice produced intensive meningitis several days after infection. The inflammatory reaction could be quantitated by counting cells obtained from this inflammatory lesion. The local virus titer increased until day 5 and subsequently decreased rapidly with time. Concomitant with this titer decrease, numerous meningeal exudate cells appeare...

The study of microbe infections has always been a very effective approach to unveil and dissect cellular pathways. Autophagy is not an exception. Although some of the breakthrough discoveries in the field were obtained using yeast, pathogens have been and still are a great tool to discover and characterize new molecular and functional aspects of autophagy. Research on pathogens has helped to ac...

Overall survival in severe aplastic anemia has markedly improved in the past four decades due to advances in stem cell transplantation, immunosuppressive therapies and supportive care. Horse anti-thymocyte globulin plus cyclosporine is the standard immunosuppressive regimen in severe aplastic anemia, and often employed as initial therapy as most are not candidates for a matched related stem cel...

19S anti-gamma-globulins were isolated in a high state of purity from the sera of two patients with rheumatoid arthritis. Following reduction with ethyl mercaptan and alkylation by iodoacetamide, fragments were produced which retained the capacity to combine with 7S gamma-globulin. The fragments from one of the 19S anti-gamma-globulins agglutinated red cells coated with incomplete anti-Rh antib...

Hu5F9-G4 and AK117, novel cluster of differentiation 47 blockers, are used to treat solid tumors hematoma. Because is expressed on erythrocytes, treatment with monoclonal anti-cluster may interfere the results transfusion compatibility testing. This study analyzed interference AK117 Saline microcolumn gel methods were identify blood types patients. To screen irregular antibodies, salt water, in...