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Differentiation of Common Myeloid Progenitor Cells

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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Related Experiment Video

Updated: May 11, 2026

Preparation of Primary Acute Lymphoblastic Leukemia Cells in Different Cell Cycle Phases by Centrifugal Elutriation
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Published on: November 10, 2017

Synchronization and recruitment in acute leukemia.

B C Lampkin, T Nagao, A M Mauer

    The Journal of Clinical Investigation
    |October 1, 1971
    PubMed
    Summary

    Chemotherapy drugs like cytosine arabinoside can synchronize leukemic cells. Giving a second cell-cycle-dependent drug after synchronization enhances therapeutic potential in leukemia treatment.

    Area of Science:

    • Oncology
    • Pharmacology
    • Cell Biology

    Background:

    • Leukemic blasts in bone marrow exhibit specific cell cycle dynamics.
    • Understanding chemotherapy effects on the leukemic cell cycle is crucial for treatment optimization.

    Purpose of the Study:

    • To evaluate the in vivo effects of various chemotherapeutic agents on the mitotic cycle of leukemic blasts.
    • To assess the potential for synchronizing leukemic cells using specific drugs for enhanced therapeutic outcomes.

    Main Methods:

    • Serial measurements of mitotic and deoxyribonucleic acid (DNA) synthesizing leukemic cells in bone marrow.
    • Administration of chemotherapeutic agents including L-asparaginase, hydrocortisone, cyclophosphamide, cytosine arabinoside, methotrexate, and exchange transfusion.
    • Evaluation of cell cycle effects, including entry into S phase and mitosis, and synchronization strategies.

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    Main Results:

    • L-asparaginase and hydrocortisone arrested cell entry into the S phase.
    • Cyclophosphamide inhibited DNA synthesis, arrested mitosis, and blocked S phase entry.
    • Cytosine arabinoside and methotrexate inhibited DNA synthesis, achieving partial synchronization by allowing continued S phase entry.
    • A second cell-cycle-dependent drug administered after synchronization with cytosine arabinoside showed increased recruitment.

    Conclusions:

    • Cytosine arabinoside and methotrexate can partially synchronize leukemic cells in the S phase.
    • Administering a second cell-cycle-dependent drug following synchronization offers greater therapeutic advantage compared to the drug alone.
    • This synchronization strategy holds promise for improving leukemia treatment efficacy.