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Related Concept Videos

Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

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Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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Differentiation of Common Myeloid Progenitor Cells01:15

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Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
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Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
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The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
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Related Experiment Video

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Proliferation and Differentiation of Murine Myeloid Precursor 32D/G-CSF-R Cells
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Myeloid growth factors.

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    Prophylactic myeloid growth factors like filgrastim can reduce febrile neutropenia severity in cancer patients. Guidelines now include updated pegfilgrastim timing and new agents like tbo-filgrastim.

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    Generation of Large Numbers of Myeloid Progenitors and Dendritic Cell Precursors from Murine Bone Marrow Using a Novel Cell Sorting Strategy
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    Generation of Large Numbers of Myeloid Progenitors and Dendritic Cell Precursors from Murine Bone Marrow Using a Novel Cell Sorting Strategy

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    Area of Science:

    • Oncology
    • Hematology
    • Clinical Guidelines

    Background:

    • Febrile neutropenia is a common, serious chemotherapy side effect impacting cancer patient treatment.
    • Myeloid growth factors, such as filgrastim and pegfilgrastim, are used to mitigate febrile neutropenia.
    • Current guidelines address the use of these agents in cancer care.

    Purpose of the Study:

    • To update recommendations on myeloid growth factor use in oncology.
    • To address the timing of pegfilgrastim administration.
    • To incorporate new agents like tbo-filgrastim and their role in hematopoietic cell transplantation.

    Main Methods:

    • Review of clinical evidence and expert consensus.
    • Analysis of NCCN Clinical Practice Guidelines for Myeloid Growth Factors.
    • Inclusion of recent regulatory approvals and emerging clinical data.

    Main Results:

    • Revised recommendations on the prophylactic use of myeloid growth factors.
    • Specific guidance on the optimal timing for pegfilgrastim administration.
    • Inclusion of tbo-filgrastim and its application in relevant patient populations.

    Conclusions:

    • Updated guidelines provide evidence-based recommendations for myeloid growth factor use.
    • Optimized timing of pegfilgrastim can improve treatment protocols.
    • Expanded guidance supports the use of newer agents and in stem cell transplant settings.