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  • 1
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    Histidine-rich glycoprotein does not interfere with interactions between antithrombin III and heparin-like compounds on vascular endothelial cells (1989)
    American Society of Hematology
    Details
    Publication Date: 1989-01-01
    Description: The role of histidine-rich glycoprotein in controlling heparin-like compounds on the endothelial cell surface is still unclear. The effects of this heparin-neutralizing protein on the interaction between antithrombin III and cultured porcine aortic endothelial cells were examined. Displacement of 125I-labeled antithrombin III specifically bound to endothelial cells by unlabeled histidine-rich glycoprotein was much less potent than that by unlabeled antithrombin III. One hundred- fold molar excess of histidine-rich glycoprotein displaced specific 125I-antithrombin III binding only by 20%. Furthermore, the endothelial cell-mediated acceleration of thrombin inactivation by antithrombin III was diminished by protamine sulfate, but was not affected by histidine- rich glycoprotein even at a histidine-rich glycoprotein/antithrombin III molar ratio of approximately 7:1. These data indicate that histidine-rich glycoprotein does not interfere with the interaction of endothelial cell heparin-like compounds with antithrombin III. Thus, it may not play an important role in the modulation of anticoagulant activity of endothelial cells in vivo, suggesting that the commonly accepted view of the probable function of this protein is erroneous.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
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  • 2
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    T cell gamma gene rearrangements in hematologic neoplasms (1987)
    American Society of Hematology
    Details
    Publication Date: 1987-03-01
    Description: Rearrangements of the T cell gamma (T gamma) gene were studied in primary neoplastic cells from 75 patients with leukemia or lymphoma. T gamma gene rearrangements were observed in 19 of 21 T cell neoplasms; 14 of 21 immature B cell leukemias, including 4 out of 5 patients with rearrangements of both immunoglobulin heavy-chain (JH) and T cell receptor beta chain (T beta) genes; none out of 16 nonlymphoid leukemias. Thus, T gamma gene rearrangement is frequently found in immature B cells and is not always found in T cells showing T beta gene rearrangement, but it is not detected in nonlymphoid cells. Furthermore, T gamma gene rearrangement in cells with the germline configuration of the JH and T beta genes was observed. These results indicate that the detection of T gamma gene rearrangement does not allow a clear assignment to a particular lineage. However, an analysis of T gamma gene rearrangement provides a further potential tool to establish the lymphoid cellular origin and clonality of hematologic neoplasms and identify the normal stages of lymphocyte differentiation.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    T cell gamma gene rearrangements in hematologic neoplasms (1987)
    American Society of Hematology
    Details
    Publication Date: 1987-03-01
    Description: Rearrangements of the T cell gamma (T gamma) gene were studied in primary neoplastic cells from 75 patients with leukemia or lymphoma. T gamma gene rearrangements were observed in 19 of 21 T cell neoplasms; 14 of 21 immature B cell leukemias, including 4 out of 5 patients with rearrangements of both immunoglobulin heavy-chain (JH) and T cell receptor beta chain (T beta) genes; none out of 16 nonlymphoid leukemias. Thus, T gamma gene rearrangement is frequently found in immature B cells and is not always found in T cells showing T beta gene rearrangement, but it is not detected in nonlymphoid cells. Furthermore, T gamma gene rearrangement in cells with the germline configuration of the JH and T beta genes was observed. These results indicate that the detection of T gamma gene rearrangement does not allow a clear assignment to a particular lineage. However, an analysis of T gamma gene rearrangement provides a further potential tool to establish the lymphoid cellular origin and clonality of hematologic neoplasms and identify the normal stages of lymphocyte differentiation.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Histidine-rich glycoprotein does not interfere with interactions between antithrombin III and heparin-like compounds on vascular endothelial cells (1989)
    American Society of Hematology
    Details
    Publication Date: 1989-01-01
    Description: The role of histidine-rich glycoprotein in controlling heparin-like compounds on the endothelial cell surface is still unclear. The effects of this heparin-neutralizing protein on the interaction between antithrombin III and cultured porcine aortic endothelial cells were examined. Displacement of 125I-labeled antithrombin III specifically bound to endothelial cells by unlabeled histidine-rich glycoprotein was much less potent than that by unlabeled antithrombin III. One hundred- fold molar excess of histidine-rich glycoprotein displaced specific 125I-antithrombin III binding only by 20%. Furthermore, the endothelial cell-mediated acceleration of thrombin inactivation by antithrombin III was diminished by protamine sulfate, but was not affected by histidine- rich glycoprotein even at a histidine-rich glycoprotein/antithrombin III molar ratio of approximately 7:1. These data indicate that histidine-rich glycoprotein does not interfere with the interaction of endothelial cell heparin-like compounds with antithrombin III. Thus, it may not play an important role in the modulation of anticoagulant activity of endothelial cells in vivo, suggesting that the commonly accepted view of the probable function of this protein is erroneous.
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
    Published by American Society of Hematology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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