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  • Induction of human leukemia cell differentiation via PKC/MAPK pathways by arsantin, a sesquiterpene lactone from Artemisia santolina.

Induction of human leukemia cell differentiation via PKC/MAPK pathways by arsantin, a sesquiterpene lactone from Artemisia santolina.

Archives of pharmacal research (2015-05-10)
Sin Ho Kweon, Ju Han Song, Hee Jin Kim, Tae Sung Kim, Bo Gil Choi
ABSTRACT

Sesquiterpene lactone compounds have received considerable attention in pharmacological research due to their therapeutic effects including anti-cancer and anti-inflammatory activities. In this report, we investigated the effect of arsantin, a sesquiterpene lactone compound present in Artemisia santolina, on cellular differentiation in the human promyelocytic leukemia HL-60 cell culture system. Arsantin significantly induced HL-60 cell differentiation in a concentration-dependent manner. Cytofluorometric analysis indicated that arsantin induced HL-60 cell differentiation predominantly into granulocytes. Both PKC and MAPK inhibitors suppressed the HL-60 cell differentiation induced by arsantin. Moreover, treatment with arsantin increased protein levels of PKCα and PKCβII isoforms, and also induced increased protein levels and phosphorylation form of MAPKs in HL-60 cells. Importantly, arsantin synergistically enhanced differentiation of HL-60 cells in a dose-dependent manner when combined with either low doses of 1,25-(OH)2D3 or ATRA. The ability to enhance the differentiation potential of 1,25-(OH)2D3 or ATRA by arsantin may improve outcomes in the therapy of acute promyelocytic leukemia.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Phorbol 12-myristate 13-acetate, synthetic, ≥98.0% (TLC)
Sigma-Aldrich
Phorbol 12-myristate 13-acetate, ≥99% (TLC), film or powder
Sigma-Aldrich
GF 109203X, synthetic, ≥90% (HPLC)
Sigma-Aldrich
2-Methylpiperazine, 95%
Sigma-Aldrich
PMA, for use in molecular biology applications, ≥99% (HPLC)
Sigma-Aldrich
Fluorescein isothiocyanate isomer I, ≥97.5% (HPLC)
Sigma-Aldrich
Wortmannin, from Penicillium funiculosum, ≥98% (HPLC and TLC)
Sigma-Aldrich
Fluorescein 5(6)-isothiocyanate, BioReagent, suitable for fluorescence, mixture of 2 components, ≥90% (HPLC)
Sigma-Aldrich
Fluorescein 5(6)-isothiocyanate, ≥90% (HPLC)