Clinical Biology and Potential Use of Thrombopoietin

The discovery of platelet growth factors raised expectations that an effective method for abrogating thrombocytopenia would soon be available in the clinic. The cytokines initially described were pleiotropic in nature, and stimulation of platelet production was generally modest. However, one of thes...

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Main Author: Russell Basser
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Canadian Journal of Gastroenterology
Online Access:http://dx.doi.org/10.1155/2000/681394
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author Russell Basser
author_facet Russell Basser
author_sort Russell Basser
collection DOAJ
description The discovery of platelet growth factors raised expectations that an effective method for abrogating thrombocytopenia would soon be available in the clinic. The cytokines initially described were pleiotropic in nature, and stimulation of platelet production was generally modest. However, one of these agents, interleukin-11, was successfully shown to reduce the incidence of severe thrombocytopenia in patients receiving dose-intensive chemotherapy, and has now received approval from the United States Food and Drug Administration for this purpose. Initial clinical trials of thrombopoietin, the central regulator of megakaryocytopoiesis and thrombopoiesis, and its analogues showed these agents to be the most potent stimulators of thrombopoiesis and to be associated with few adverse effects. They have also been shown to enhance platelet recovery after chemotherapy, but early results from trials investigating their ability to prevent severe thrombocytopenia associated with the treatment of leukemia and bone marrow transplantation have been disappointing. In addition, subcutaneous administration of one of these agents, megakaryocyte growth and development factor, has been shown to induce the formation of antibodies that neutralize native thrombopoietin and cause thrombocytopenia. Platelet growth factors remain promising therapeutic agents; however, there are a number of obstacles to overcome before they find general use in the clinic.
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spelling doaj-art-5fd4cb1a0d9748018fd3a506d11bbfd52025-02-03T01:31:02ZengWileyCanadian Journal of Gastroenterology0835-79002000-01-0114Suppl D73D78D10.1155/2000/681394Clinical Biology and Potential Use of ThrombopoietinRussell Basser0Departments of Haematology and Medical Oncology, Royal Melbourne Hospital and Western Hospital, Victoria, AustraliaThe discovery of platelet growth factors raised expectations that an effective method for abrogating thrombocytopenia would soon be available in the clinic. The cytokines initially described were pleiotropic in nature, and stimulation of platelet production was generally modest. However, one of these agents, interleukin-11, was successfully shown to reduce the incidence of severe thrombocytopenia in patients receiving dose-intensive chemotherapy, and has now received approval from the United States Food and Drug Administration for this purpose. Initial clinical trials of thrombopoietin, the central regulator of megakaryocytopoiesis and thrombopoiesis, and its analogues showed these agents to be the most potent stimulators of thrombopoiesis and to be associated with few adverse effects. They have also been shown to enhance platelet recovery after chemotherapy, but early results from trials investigating their ability to prevent severe thrombocytopenia associated with the treatment of leukemia and bone marrow transplantation have been disappointing. In addition, subcutaneous administration of one of these agents, megakaryocyte growth and development factor, has been shown to induce the formation of antibodies that neutralize native thrombopoietin and cause thrombocytopenia. Platelet growth factors remain promising therapeutic agents; however, there are a number of obstacles to overcome before they find general use in the clinic.http://dx.doi.org/10.1155/2000/681394
spellingShingle Russell Basser
Clinical Biology and Potential Use of Thrombopoietin
Canadian Journal of Gastroenterology
title Clinical Biology and Potential Use of Thrombopoietin
title_full Clinical Biology and Potential Use of Thrombopoietin
title_fullStr Clinical Biology and Potential Use of Thrombopoietin
title_full_unstemmed Clinical Biology and Potential Use of Thrombopoietin
title_short Clinical Biology and Potential Use of Thrombopoietin
title_sort clinical biology and potential use of thrombopoietin
url http://dx.doi.org/10.1155/2000/681394
work_keys_str_mv AT russellbasser clinicalbiologyandpotentialuseofthrombopoietin