Abstract
Objective: To detect the G-CSF effect and its mechanism in hyperleucocytosis of patients with APL after treatment with all-trans retinoic acid (ATRA). Methods: MTT method was used to measure the proliferation of HL-60 cells or primary APL cells. cDNA-mRNA dot blot hybridization was used to detect the c-myc gene expression level of HL-60 cells after ATRA treatment. Cycle shift of HL-60 cells was measured by flow cytometric Analysis. Results: ATRA could inhibit obviously in vitro the proliferation of HL-60 cells of primary APL cells. The G0/G1 ratio of HL-60 at 24 hours or 96 hours post-treatment with ATRA was increased, proliferation of HL-60 cells at the same time was promoted obviously under the condition of rhG-CSF. C-myc gene expression was analyzed by dot blot hybridization; its expression levels of 8, 24 or 96 hours in culture with ATRA separately were higher, low, high or lower as compared with each other. Conclusion: G-CSF plays an important role in hyperleucocytosis of patients with APL after treatment with ATRA.
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This work was supported by the National Natural Science Foundation of China (No. 39470318) and the Grant from the 9th Five-year Program for Scientific Research of China (96-906-0117).
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Guosheng, J., Tianhua, T., Guanlin, S. et al. Relationship between G-CSF and hyperleukocytosis in patients with APL after treatment with all-trans retinoic acid. Chin. J. Cancer Res. 11, 249–252 (1999). https://doi.org/10.1007/s11670-999-0026-7
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DOI: https://doi.org/10.1007/s11670-999-0026-7