histoplasmosis/carbohydrate

BACKGROUND During histoplasmosis, Histoplasma capsulatum soluble antigens (CFAg) can be naturally released by yeast cells. Because CFAg can be specifically targeted during infection, in the present study we investigated CFAg release in experimental murine histoplasmosis, and evaluated the host

Histoplasma capsulatum is an intracellular fungal pathogen that causes respiratory and systemic disease by proliferating within phagocytic cells. The binding of H. capsulatum to phagocytes may be mediated by the pathogen's cell wall carbohydrates, glucans, which consist of glucose homo and

A western blot (WB) test was evaluated for detection of antibodies against native glycosylated and chemically deglycosylated M and H antigens of Histoplasma capsulatum in serum obtained from patients during the acute phase of pulmonary histoplasmosis that occurred during an outbreak. Of 275 serum

Previously, we identified two mature glycoproteins, gp90, the surface glycoprotein, and gp20, the transmembrane protein, from avian reticuloendotheliosis virus and an avian reticuloendotheliosis virus env gene-encoded intracellular polyprotein gPr77env, but the precise relationship of gPr77env to

From the yeast phase of the human pathogen Histoplasma capsulatum, three novel glycolipids were isolated, shown to react with sera from histoplasmosis patients, and partially characterized: compound V, ceramide-P-inositol-[mannose2]; compound VI, ceramide-P-inositol-[mannose2, galactose]; compound

BACKGROUND Lignin fractions of Lentinus edodes mycelia extract (LEM) have shown anti-HIV and immunopotentiating activity. However, the action point of lignin-carbohydrate complex has not been elucidated. In order to elucidate their action point, DNA microarray analysis was performed, using mouse

Sera from patients with paracoccidioidomycosis (PCM), histoplasmosis (HP), or Jorge Lobo's disease (JL) were titrated against purified gp43 from Paracoccidioides brasiliensis by using both enzyme-linked immunosorbent assay (ELISA) and immunoprecipitation (IPP) reactions with 125I-labeled antigens.

Different properties of the spleen necrosis virus (SNV) envelope glycoprotein were analyzed following biosynthesis in the presence of glycosylation inhibitors. Tunicamycin, which inhibits all asparagine N-linked glycosylation, prevented intracellular processing and translocation to the cell surface

Monoclonal antibodies (MAbs) of two different specificities were produced by immunizing mice with the semipurified M antigen of histoplasmin. One type, from clone CB4, was an immunoglobulin M that precipitated a polysaccharide present in histoplasmin and also formed immunoprecipitates with a

Tartrate-resistant acid phosphatase was isolated from serum and spleen of patients affected by Gaucher's disease. Electrophoretic and antigenic properties were compared to the enzyme isolated from hairy cells described in a previous study (9). The enzyme isolated from Gaucher serum has

The enzyme-linked immunoelectrotransfer blot (EITB) method was evaluated as a suitable method for detecting antibodies against M antigen of Histoplasma capsulatum by use of both glycosylated and deglycosylated M protein of histoplasmin (HMIN). Sera from patients with histoplasmosis,

Quantitative chemiluminescent enzyme-linked immunosorbent assay (ELISA) and dot-blotting procedures were developed to evaluate the reactivity of human antibodies with crude antigens and purified molecules of parasites and fungi, mainly Trypanosoma cruzi and Paracoccidioides brasiliensis.

Chromium chloride was used as a coupling agent for the conjugation of purified cryptococcal polysaccharide to sheep erythrocytes. Sensitized erythrocytes were used in a passive hemagglutination (PHA) assay for antibody to cryptococcal polysaccharide and a passive hemagglutination inhibition (PHI)

The new imidazole derivative Z-[2,4-dichloro-2-imidazol-1-yl)acetophenone]-O-(2,4-dichlorobenzyl)-oxime nitrate (oxiconazole, Ro 13-8996) is characterized by a broad fungistatic spectrum against the agents of human mycoses in vitro. In addition, fungicidal activity of various degree was found in

Fava Nettos' polysaccharide antigen (FNPA), shown to detect humoral and cellular responses in paracoccidioidomycosis, was investigated. Skin tests with FNPA were negative after alkaline hydrolysis or depletion of gp43 peptide epitopes. Purified antibodies to FNPA or gp43 from paracoccidioidomycosis