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Attiki: International Institute of Anticancer Research
Erscheinungsjahr
2005
Quelle
MEDLINE
Beschreibungen/Notizen
Berberine iodide (IK-1) and acetoneberberine (IK-2) showed higher cytotoxicity against five human oral squamous cell carcinoma
(HSC-2, HSC-3, HSC-4, NA, CA9-22) and one human promyelocytic leukemia (HL-60) cell lines, than against normal human oral
tissue-derived cells (gingival fibroblast HGF, pulp cell HPC, periodontal ligament fibroblast HPLF), producing a tumor specificity
index of 4.0 and 3.6, respectively. IK-1 was more potent than IK-2 in inducing the production of apoptotic cells, internucleosomal
DNA fragmentation, the activation of caspases-3, -8 and -9, and the increased expression of proapoptotic BAD protein, with
a corresponding decrease in the expression of anti-apoptotic Bcl-2 protein in HL-60 cells. These compounds did not induce
internucleosomal DNA fragmentation (only producing larger DNA fragment), nor increased the Bad protein expression in HSC-2
cells. The present study demonstrated the tumor-specific cytotoxicity and apoptosis-inducing activity of berberines, suggesting
their possible antitumor potential.