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Browsing by Author "A Ragab, Fatma"

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    Novel 4-(4-substituted-thiazol-2-ylamino)-N-(pyridin-2-yl)-benzenesulfonamides as cytotoxic and radiosensitizing agents
    (SPRINGER, 2012) M Ghorab, Mostafa; A Ragab, Fatma; I Heiba, Helmy; M Agha, Hebaallah; M Nissan, Yassin
    A series of novel 4-(4-substituted-thiazol-2-ylamino)-N-(pyridin-2-yl) benzene-sulfonamides were synthesized and screened for their cytotoxic activity against human breast cancer cell line (MCF-7). Compounds 6, 7, 9, 10, 11, and 14 displayed significant activity against MCF-7 when compared to doxorubicin, which was used as a reference drug. The synergistic effect of Gamma radiation for the most active derivatives 7, 9, and 11 was also studied and their IC50 values markedly decreased to 11.9 μM, 11.7 μM, and 11.6 μM, respectively
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    Novel brominated quinoline and pyrimidoquinoline derivatives as potential cytotoxic agents with synergistic effects of γ-radiation
    (Pharmaceutical Society of Korea, 2012) M Ghorab, Mostafa; A Ragab, Fatma; I Heiba, Helmi; M Nissan, Yassin; M Ghorab, Walid
    New quinoline derivatives 6, 7 and 19, pyrimidoquinoline derivatives 8–16 and triazolopyrimidoquinoline derivatives 17 and 18 bearing a bromo-substituent were synthesized starting from 3-(4-Bromophenylamino)-5,5-dimethylcyclohex-2-enone 3. All the newly synthesized compounds were evaluated for their in vitro anticancer activity against human breast cancer cell line (MCF7). Compounds 9, 11, 17 and 18 showed IC50 values (36.4, 39.7, 39.02 and 36.4 μM, respectively) comparable to that of the reference drug doxorubicin (IC50 = 32.02 μM). On the other hand, compound 6, 14 and 19 exhibited better activity than doxorubicin with IC50 values of 8.5, 23.5 and 23.7 μM. Additionally, the most potent compounds 6, 14 and 19 were evaluated for their ability to enhance the cell killing effect of γ-radiation.

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