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  • Title: Antiproliferative efficacy of curcumin mimics through microtubule destabilization.
    Author: Khwaja S, Fatima K, Hasanain M, Behera C, Kour A, Singh A, Luqman S, Sarkar J, Chanda D, Shanker K, Gupta AK, Mondhe DM, Negi AS.
    Journal: Eur J Med Chem; 2018 May 10; 151():51-61. PubMed ID: 29605808.
    Abstract:
    Curcumin possesses an attractive chemical structure with highly conjugated diferuloylmethane core. Curcumin mimics have been designed and prepared with an additional bridged phenyl ring in conjugation. Fourteen diverse analogues were evaluated against a panel of human cancer cell lines. The best analogue of the series i.e. compound 6a exhibited potent cytotoxicity against A431, epidermoid carcinoma cell line (IC50 = 1.5 μM) and DLD1, colorectal adenocarcinoma cell line (IC50 = 6.9 μM). In tubulin kinetics experiment, compound 6a destabilized polymerisation process (IC50 = 4.68 μM). In cell cycle analysis, compound 6a exerted G2/M phase arrest in A431 cells and induced apoptosis. In Ehrlich Ascites Carcinoma in Swiss-albino mice, compound 6a showed 78.6% tumour reduction at 80 mg/kg dose and 57% solid tumour reduction at 150 mg/kg dose. Further, in acute-oral toxicity experiment in rodent model, compound 6a was given in three different oral doses to Swiss albino mice. There were non-significant changes in various biochemical parameters and major body organs studied, including their absolute and relative weights. It was tolerable up to 300 mg/kg dose in Swiss-albino mice. The present study shows that the novel curcumin mimic 6a is a safe and efficacious anticancer compound. However, it needs to be optimized for better efficacy.
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