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alpha santonin/leucemia
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Induction of G₂/M arrest, caspase activation and apoptosis by α-santonin derivatives in HL-60 cells.
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Sesquiterpene lactones (SLs) are natural products with a variety of biological activities. Previously, we demonstrated the cytotoxic effects of three new α-santonin derivatives on different tumor cell lines with low toxic effects upon peripheral human leukocytes. Here, we evaluated the mechanism of
Synthesis of DAAS derivatives and their enhancement of HL-60 leukemia cell differentiation.
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DAAS is the diacetoxy acetal derivative of a-santonin and induces HL-60 cell differentiation into granulocytes. In this report, we investigated the structure-activity relationship (SAR) of DAAS derivatives in the differentiation of human HL-60 leukemia cells. Although its derivatives themselves had
Synthesis and cytotoxic activity of alpha-santonin derivatives.
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Ten alpha-santonin derivatives were synthesized in moderate to high yields. Four derivatives namely 10alpha-acetoxy-3-oxo-1,7alphaH,6,11betaH-guai-4-en-6,12-olide (2), isofotosantonic acid (3), 10alpha-hydroxy-3-oxo-1,7alphaH,6,11betaH-guai-4-en-6,12-olide (4), and lumisantonin (5), were prepared by
Selective Cytotoxicity of α-Santonin from the Persian Gulf Sponge Dysidea Avara on Pediatric ALL B-lymphocytes via Mitochondrial Targeting
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Background: Acute lymphoblastic leukemia (ALL) is one of the most dominant malignancies among children, characterized by production of immature and dysfunctional blasts which are resistant to cytotoxic chemotherapeutic agents. Therefore, research protocols are currently focusing on discovery of
Studies on the synthesis of sesquiterpene lactones, 12. Synthesis of (+)-colartin, (+)-arbusculin A, and their C-4 epimers and their biological activities.
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Colartin [9] and arbusculin A [11] have been synthesized from alpha-santonin [1] in 14.5% (11 steps) and 9.3% (13 steps) overall yields, respectively. Arbusculin A [11] and compounds 20, 21, and 22, which were derived from intermediate 2, showed significant cell growth inhibitory activity against
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