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Biomedical subjects

S V Payne

Publications and source records attributed to S V Payne.

11 recordsLinked to original sources

Macrophage origin of Reed-Sternberg cells: an immunohistochemical study.

In an immunohistochemical study of 26 biopsies from 24 patients with Hodgkin's disease a granular staining pattern for alpha-1-antitrypsin (alpha(1)AT) and alpha-1-antichymotrypsin (alpha(1)ACT) was seen in Reed-Sternberg (RS) cells and mononuclear Hodgkin's (H) cells in over half the cases. The pattern of staining for these antiproteases seen in RS and H cells has previously only been observed in normal and malignant cells of the monocyte/macrophage lineage within the lymphoreticular system. A faintly granular evenly distributed staining for IgG was found in viable RS and H cells. This staining was associated with a similar distribution of both light chains but not J chain, suggesting that the immunoglobulin had not been synthesised by these cells but had been taken up from the extracellular environment. It is suggested that this uptake is an active process occurring in viable RS and H cells, possibly via Fcgamma receptors and further supports an origin from cells of the monocyte/macrophage lineage. IgA, IgD, albumin, fibrinogen, C1q, C4 and C3 were present in some cells, IgM was more rarely found and lysozyme was absent. The fact that cells staining for these serum proteins generally showed signs of degeneration and that the extent of staining correlated with the molecular weight, but not serum concentration, of the protein suggests that they are passively acquired by dead or dying cells and thus represent a separate phenomenon from IgG uptake. The function of IgG uptake and accumulation by RS cells and the alpha(1)AT and alpha(1)ACT markers may prove of use in identifying the macrophage subtype from which these cells are derived.

Blood Proteins↗

The nature of the immunoglobulin-containing cells in malignant lymphoma: an immunoperoxidase study.

Using the immunoperoxidase technique, an attempt has been made to accurately characterize immunoglobulin (Ig)-containing cells in 185 cases of human malignant lymphoma. By applying a variety of antisera Ig synthesizing cells can be distinguished from cells taking up Ig from the environment. The use of thin (1 mu) paraffin sections has permitted detailed comparison to be made between Ig synthesizing cells of follicle center cell lymphomas and those of reactive follicle centers in human tonsils. Using cell pellets, similar comparison has been made with peripheral blood lymphocytes synthesizing Ig following stimulation with pokeweed mitogen. In follicle center cell lymphomas Ig synthesis is a function of cleaved and noncleaved follicle center cells, not plasma cells, and these cells are strikingly similar to Ig synthesizing cells normally present in nonneoplastic reactive follicle centers and the cells that synthesize Ig following pokeweed stimulation of peripheral blood lymphocytes. these results suggest pathways of B-cell maturation different from those commonly proposed and help to clarify certain inconsistencies in the classification of malignant lymphomas.

Histocytochemistry↗

The Reed-Sternberg cell/lymphocyte interaction: ultrastructure and characteristics of binding.

Autologous T lymphocytes form broad, unspecialized, noninvaginating contacts with Reed-Sternberg cells in vitro. These differ from contacts between cytotoxic lymphocytes and their targets and from the uropodal type of lymphocyte adherence described in many antigen- (or mitogen-) dependent systems but show some resemblance to antigen-independent lymphocyte/macrophage contacts. Adherence is not confined to a specific T-cell subset; most adherent cells are negative for ANAE, Fc gamma, and Fc mu receptors. A minority have Fc mu or Fc gamma receptors or show ANAE staining. Adherence is dependent on divalent cations and intact surface proteins but is independent of temperature, cell metabolism, and intact microtubules and does not appear to be mediated by Fc gamma receptors or IgG. These characteristics distinguish it from immune T-cell/target-cell binding and from antigen-independent T-cell/macrophage or T-cell/B-lymphoblast binding. Contrary to previous suggestions, this interaction is not related to a cytotoxic attack. The lack of similarities with other lymphocyte adherence systems leads the authors to suggest that a unique receptor system is involved.

Cytotoxicity, Immunologic↗

Absence of IgG lymphocytotoxins in untreated Hodgkin's disease (HD) patients.

Six of twenty-three sera (26%) from patients with Hodgkin's disease (HD) contained IgG antibody with an affinity for human lymphocytes and lymphoblastoid cell lines. All sera were negative for complement-dependent and antibody-mediated cell cytotoxicity against human lymphoid cells irrespective of their binding capacity. It is suggested that the antilymphocyte antibodies seen in HD are not of pathogenic significance but are a non-specific consequence of B-cell stimulation.

Antibody Affinity↗

Lymphocyte markers in non-Hodgkin's lymphomas.

The lymphocyte marker pattern of non-Hodgkin's lymphoma cells was related to current concepts of lymphoma classification. In a series of 28 lymphomas lymphocyte markers indicated that 2 were of histiocytic origin, 2 were unclassifiable, none were derived from T cells and the remainder were B-cell neoplasms. The immunoglobulin heavy chain associated with the B-cell tumours was gamma in one case, alpha in one case but was mu in the majority of cases, reflecting the predominance of this heavy chain, together with delta chains, on normal lymph node lymphocytes in man. delta chains accompanied mu chains on the tumour cells in 6/17 lymphomas in which anti-delta staining was performed. delta chains were not found on any lymphomas other than well differentiated diffuse lymphocytic types. There was evidence of a reduction in surface immunoglobulin, Fcgamma and C3 receptors on undifferentiated lymphoma cells. T lymphocytes of normal morphology were present in all lymphomas except one, and were more numerous in follicular lymphomas than in diffuse tumours.

B-Lymphocytes↗

T and B lymphocytes and Reed-Sternberg cells in Hodgkin's disease lymph nodes and spleens.

Lymphoid cells from twenty-four untreated Hodgkin's disease biopsies were examined for spontaneous sheep erythrocyte and sensitized ox erythrocyte rosette formation for the identification of T cell and cells with Fc and C3 receptors and surface immunoglobulin. Compared with normal tissues mean T-lymphocytes values were elevated in both involved lymph nodes and uninvolved spleens from Hodgkin's patients. Lymphocytes bearing C3 receptors were correspondingly reduced in these tissues. Involved spleen T-cell values fell within the normal range. In normal tissues the sum of lymphocytes with surface immunoglobulin and sheep erythrocyte receptors fell in the range 89-108%. In six biopsies of Hodgkin's tissue the sum was outside the normal range (121-142%). This observation is compatible with surface immunoglobulin-coated T cells. Surface marker characteristics and intracellular immunoglobulin studies of small lymphocytes, lymphoblasts and Hodgkin's cells suggested that the neoplastic cells were of B lymphocyte origin.

Adolescent↗

Phenotypic analysis of an established cell line derived from a patient with Hodgkin's disease (HD).

This report describes the phenotypic analysis of a cell line obtained from a female patient with the nodular sclerosing subtype of Hodgkin's disease (HD). The cell line has a neoplastic karyotype and is stable in culture in the absence of feeder layers or growth factors. Phenotypic analysis of this cell line shows that it cannot easily be characterized as either a lymphocyte, macrophage or granulocyte but resembles in its characteristics certain HD lines already described in the literature. The cell line carries the antigen defined by the Ki-1 monoclonal antibody, shows myeloid markers on a proportion of cells and has cytoplasmic UCH-T1.

Acid Phosphatase↗