[Effects of mangiferin on cell cycle status and CDC2/Cyclin B1 expression of HL-60 cells].
OBJECTIVE
To study the effects of mangiferin on cell cycle status and CDC2/Cyclin B1 expression in HL-60 cells, and its molecular mechanism for treating leukemia.


METHODS
The effect of Mangiferin on HL-60 cells proliferation was determined by MTT assay; The change of cell cycle status in HL-60 cells treated with mangiferin was performed by the flow cytometry; The expressions of CDC2 mRNA and Cyclin B1 mRNA were detected by semiquantitative RT-PCR.


RESULTS
The growth inhibition effects of mangiferin in HL-60 cells were enhanced as the mangiferin concentration increased and exposure time prolonged; HL-60 cells in G2/M phase increased in a dose-dependent way 24 hours after mangiferin administration, indicating G2/M phase blockage; the expressions of CDC2 mRNA and Cyclin B1 mRNA enhanced in a dose-dependent way and came to the peak at 80 micromol/L mangiferin.


CONCLUSIONS
Mangiferin can inhibit the proliferation of HL-60, block the cell cycle progression in G2/M phase, and it can significantly increase the expressions of CDC2 mRNA and Cyclin B1 mRNA of HL-60 cells. G2/M phase blockage may be one of its molecular mechanism for treating leukemia.
Yao
Yi-Bin
YB
Department of Hematology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China. yaoyiyi6@126.com
Peng
Zhi-Gang
ZG
Liu
Zhen-Fang
ZF
Yang
Jie
J
Luo
Jun
J
D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D016203:CDC2 Protein Kinase; D002453:Cell Cycle / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects; D019926:Cyclin B / Q000378:metabolism*; D056744:Cyclin B1 / Q000235:genetics / Q000378:metabolism; D018844:Cyclin-Dependent Kinases; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D005434:Flow Cytometry; D016195:G2 Phase / Q000187:drug effects; D015972:Gene Expression Regulation, Neoplastic; D018922:HL-60 Cells; D006801:Humans; D007938:Leukemia / Q000473:pathology*; D031022:Mangifera / Q000737:chemistry*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D015854:Up-Regulation; D044004:Xanthones / Q000494:pharmacology*
D000972:Antineoplastic Agents, Phytogenic; D019926:Cyclin B; D056744:Cyclin B1; D012333:RNA, Messenger; D044004:Xanthones; C013592:mangiferin; D016203:CDC2 Protein Kinase; C528899:CDK1 protein, human; D018844:Cyclin-Dependent Kinases