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  • Open Access

    ARTICLE

    Magnetic melamine cross-linked polystyrene-alt-malic anhydride copolymer: Synthesis, characterization, paclitaxel delivery, cytotoxic effects on human ovarian and breast cancer cells

    RAZIEH MOMEN-MESGIN1, JAFAR REZAIE2,*, VAHID NEJATI1, PEYMAN NAJAFI MOGHADAM3

    Oncology Research, Vol.33, No.3, pp. 665-674, 2025, DOI:10.32604/or.2024.054487 - 28 February 2025

    Abstract Objectives: Due to systematic side effects, there is a growing interest in nanoparticle formulation of anticancer drugs. Here, we aimed to synthesize poly (styrene-alt-maleic anhydride) cross-linked by melamine (PSMA/Me) and coated with magnetite nanoparticles (MNPs) PSMA/Me/Fe3O4. In addition, we aimed to load paclitaxel (PTX) into PSMA/Me/Fe3O4 for drug delivery and anticancer investigations. Methods: Novel PSMA/Me was synthesized via free radical copolymerization, coated with Fe3O4, and then used as a transporter for PTX delivery. Fabricated copolymer was characterized using SEM, TGA, and XRD techniques. Drug release rate and loading efficiency were investigated. Human ovarian cancer cells (Skov-3) and… More >

  • Open Access

    ARTICLE

    Three Combined Treatments, a Novel HDAC Inhibitor OBP-801/YM753, 5-Fluorouracil, and Paclitaxel, Induce G2 Phase Arrest Through the p38 Pathway in Human Ovarian Cancer Cells

    Makoto Akiyama*†, Yoshihiro Sowa*, Tomoyuki Taniguchi*, Motoki Watanabe*, Shingo Yogosawa, Jo Kitawaki,Toshiyuki Sakai*

    Oncology Research, Vol.25, No.8, pp. 1245-1252, 2017, DOI:10.3727/096504017X14850164661097

    Abstract Ovarian cancer is the most lethal disease among gynecological malignancies. More effective therapy is required to counter high recurrence rates and chemotherapy resistance. We investigated the efficacy and molecular mechanisms of three combined treatments (TCTs)—a novel histone deacetylase (HDAC) inhibitor OBP-801/YM753, 5-fluorouracil (5-FU), and paclitaxel (PTX)—in human ovarian cancer SKOV-3 and OVCAR-3 cells. The inhibition of cell growth was stronger with TCTs than with each single agent and with two combined treatments. The TCTs significantly induce G2 phase arrest in both cell lines. We then analyzed the molecular mechanisms and found that the TCTs increased the More >

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