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Biomedical subjects

W J Brzosko

Publications and source records attributed to W J Brzosko.

10 recordsLinked to original sources

Ukrain both as an anti cancer and immunoregulatory agent.

Thirty six stage III cancer patients were treated with Ukrain, a semisynthetic drug derived from Chelidonium majus L. alkaloids conjugated with thiophosphoric acid. The drug was injected intravenously every second day in a dose of 10 mg per injection. Each patient received 300 mg of the drug (30 injections). The cytostatic effect of Ukrain was monitored clinically and by ultrasonography (USG) and computer tomography (CT), as well as by determination of CEA and CA-125 in the sera of patients with rectal and ovarian cancers, respectively. The influence of Ukrain on immune parameters was evaluated by monoclonal antibodies (MAb) to CD2, CD4, CD8 and CD22. The influence of Ukrain on immune parameters in cancer patients was matched with its effect on these parameters in 20 healthy volunteer controls. The results obtained indicate that Ukrain, in a concentration not cytostatic in normal cells, is cytostatic for malignant ones, and may suppress the growth of cancer. The compound also has immunoregulatory properties, regulating the T lymphocyte subsets.

Adjuvants, Immunologic

Detection of measles virus antigen(s) in peripheral lymphocytes from patients with subacute sclerosing panencephalitis.

Peripheral blood lymphocytes from 5 patients with subacute sclerosing panencephalitis (SSPE) were stimulated with phytohemagglutinin (PHA) and analyzed for the presence of the measles virus antigen(s) by immunofluorescence (IF). For detection of viral antigen fluorescein-conjugated globulins from SSPE patients or from measles convalescents both with high anti-measles titer were used. Peripheral blood lymphocytes from 5 children with measles were used as a positive control. Measles virus antigen(s) were localized in PHA-transformed lymphocytes in all SSPE patients. The present results indicate that in SSPE measles-like virus infection may be found not only in the central nervous system, but also in the circulating lymphoid cells.

Adolescent

Immunofluorescence study of brain plaques from two patients with multiple sclerosis.

Immunofluorescence studies were performed on selected plaques from two multiple sclerosis patients. Positive staining revealed the corresponding presence of immunoglobulin G and complement fraction C1q within the plaque areas. These components could be removed only after low pH washing. On the basis of these observations, we discuss the possibility of the presence of immunocomplexes within the multiple sclerosis brain.

Brain

Immunopathologic aspects of Pneumocystis carinii pneumonia in infants as revealed by immunofluorescence and electron microscopy.

Lung tissue, lymph nodes, and spleen from infants 4-15 weeks old who died of Pneumocystis carinii pneumonia were studied by immunofluorescence and immunoelectron microscopy. The results strongly suggest that antibodies to P. carinii synthetized in lungs by inflammatory infiltrates and in regional lymph nodes are essential in the elimination of P. carinii from infected lungs through their opsonization of the P. carinii organisms. Disintegration of P. carinii conglomerates subsequent to the binding of complement preceded their phagocytosis by lung alveolar macrophages. The immunomorphologic findings strongly supported the hypothesis that the replication of P. carinii at the rate leading to clinical symptoms is due to impaired and delayed synthesis both of antibodies to P. carinii and of complement.

Antibody-Producing Cells

Immunoglobulin classes of antibody to hepatitis B core antigen.

Antibody to hepatitis B core antigen in the sera of 10 patients with acute viral hepatitis B, 20 patients with chronic hepatitis B, and 30 carriers of chronic hepatitis B surface antigen was assayed by the indirect immunofluorescence test. The activity of antibody to hepatitis B core antigen in the sera of these three groups of patients was identified as belonging to immunoglobulin classes G, M, A, and D. Antibody to hepatitis B core antigen was predominantly of IgG and IgM classes in all three groups of patients.

Acute Disease