Hematopoietic Growth Factors in Oncology PDF: Basic Science and Clinical Therapeutics
|Author||George Morstyn and MaryAnn Foote|
|File size||7.5 MB|
Several hematopoietic growth factors (HGFs) have achieved widespread clinical application. In the United States alone, more than US $5 billion per year of the health care budget is spent on these factors. The first patients were treated with recombinant human erythropoietin (rHuEPO, epoetin alfa, Epogen®) in 1985 and the first patients received recombinant methionyl human granulocyte colony-stimulating factor (r-metHuG-CSF, filgrastim, Neupogen®) or recombinant human granulocyte-macrophage colonystimulating factor (rHuGM-CSF, sargramostim, Leukine® or Prokine®) in 1986. The first agent promoting platelet recovery was formally approved in 1997 (recombinant human interleukin-11 [rHuIL-11], oprelvekin, Neumega®). In 2002, sustained-duration derivative r-metHuG-CSF (pegfilgrastim, Neulasta®) was formally approved for clinical use. Likewise in 2002, a new erythropoietic protein (darbepoetin alfa, Aranesp®) with a longer serum half-life and increased biologic activity compared with rHuEPO was formally approved for clinical use. Pharmaceutical forms of several other agents have been assessed in clinical studies but are yet to find a widespread clinical utility or niche (e.g., stem cell factor, thrombopoietin, interleukin-3, colony-stimulating factor-1 [macrophage colony-stimulating factor]). The efficacy of the marketed agents to ameliorate the complications of cancer and the side effects of chemotherapy has led to their broad clinical application; however, their cost has led to efforts to ensure that their use is focused onto clinically appropriate indications. Hematopoietic Growth Factors in Oncology: Basic Science and Clinical Therapeutics is a further contribution to this endeavor. HGFs are produced in the bone marrow, kidney, brain, and fetal liver by a wide variety of cells, and they exhibit exquisite selectivity of action dependent on the expression of specific receptors by target cells. The factors stimulate proliferation and differentiation, have antiapoptotic effects, and enhance the function of mature cells. Hematopoietic Growth Factors in Oncology: Basic Science and Clinical Therapeutics introduces the molecular basis for the activity of HGFs and discusses their specific role in the treatment of various malignancies. The clinical application of these agents continues to expand because of their benefits and relative lack of side effects. Chemotherapy remains a mainstay of cancer treatment despite the introduction of newer therapeutic approaches, and so there remains a need to optimize chemotherapy-related supportive care. In the chapters presented from a systematic oncology perspective, we hope to help oncologists treating patients with particular tumor types to make informed evidencebased decisions about adjunctive HGF therapy within disease-focused treatment regimens. The volume also describes progress in various areas of basic science that may lead to further advances in hemopoietic cell regulation. There are also sections on the utility of growth factors in infectious disease settings such as AIDS.
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