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Biomedical subjects

G Riethmüller

Publications and source records attributed to G Riethmüller.

At least 253 records · Page 14Linked to original sources
PubMed1976

Strong expression of Fc-receptors on leukemic cells in hairy cell leukemia.

The neoplastic cells of a patient with hairy cell leukemia were found to express a high Fc-receptor actitivy on their surface. When the Fc-receptors were determined quantitatively by measuring the uptake of 125I-labelled aggregated IgG under saturation conditions, it was found that the hariy cells bound approximately 3 times more aggregated IgG than normal adherent mononuclear cells. The bound 125I-Agg. IgG was evenly distributed on the cell surface when the cells were labelled at 4 degrees C and was rapidly redistributed in form of a cap at one cell pole during incubation at 20 degrees C.

Binding Sites, Antibody↗
PubMed1975

[Separation and immunological characterization of lymphocytes isolated from human appendix (author's transl)].

The isolation of viable lymphocytes from fresh human appendices is described. Under standardized experimental conditions of cell preparation no selective enrichment of either T- or B-lymphocytes was observed. The mean percentage of T-lymphocytes as judged by spontaneous rosette formation found in 34 appendices examined was 50.0%. After overnight incubation surface-Ig was detected by immunoradioautography on 46.8% of the recovered lymphocytes from 10 appendices. For the detection of surface-Ig specifically purified antibodies to heavy chains mu, gamma and alpha were used. Of the 46.8% surface-Ig positive lymphocytes the class distribution was as follows: IgM 17.7%, IgG 24.4% and IgA 4.7%. The isolated lymphocytes showed a variable mitotic response to PHA (stimulation index ranging from 3.3 to 200.9) as well as to allogeneic lymphocytes in a one-way mixed lymphocyte culture. So far, a distinct correlation could not be found between the histological degree of inflammation and the class or mitotic response of appendix lymphocytes.

Adolescent↗