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  • Title: [The hemoprotective effect of platelet factor 4 (PF4) and tetrapeptide AcSDKP].
    Author: Han Z, Cai Y, Aidoudi S.
    Journal: Zhonghua Xue Ye Xue Za Zhi; 1999 Jan; 20(1):33-5. PubMed ID: 11498842.
    Abstract:
    OBJECTIVE: To study the effects of platelet factor 4(PF4) and tetrapeptide N-acetyl-Ser-Asp-Lys-Pro(AcSDKP) on hemopoietic progenitors in mice treated with 5-Fluorouracil (5-FU). METHODS: Mice were injected with PF4 (40 micrograms/kg) or AcSDKP (4 micrograms/kg) twice at 6 h intervals, and 20 h after the second injection they were given one injection of 5-FU (150 mg/kg), and the high proliferative potential-colony forming cell (HPP-CFC), burst-forming unit erythroid (BFU-E), colony forming unit megakaryocyte (CFU-MK), and megakaryocyte (MK) were examined 6, 8 and 13 days later. RESULTS: The administration of PF4 or AcSDKP resulted in a significant increase of the number of HPP-CFC on days 6-8 and BFU-E and CFU-GM on day 8 when compared to 5-FU alone. Furthermore, PF4 was found to increase significantly the number of CFU-MK and MK on day 8, which was not observed with AcSDKP. CONCLUSION: PF4 or AcSDKP accelerate the recovery in vivo of HPP-CFC, CFU-GM and BFU-E after 5-FU treatment but their effect may be different on megakaryocytic progenitors. Both molecules may have a hemoprotective effect against chemotherapeutic agents.
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