Publications by authors named "Timothy C Horan"

Article Synopsis
  • The study aimed to explore the effectiveness of 3-indolylmethanamines 31B and PS121912 in treating ovarian cancer and leukemia, respectively.
  • Various methods, including TUNEL and western blotting, were used to analyze apoptosis and tumor growth in mice models.
  • The results indicated that compound 31B successfully inhibited ovarian cancer cell proliferation and tumor growth without toxicity, while also impacting glucose metabolism, highlighting the potential of 3-indolylmethanamines as a new class of antitumor agents.
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Hypercalcemia remains a major impediment to the clinical use of vitamin D in cancer treatment. Approaches to remove hypercalcemia and development of nonhypercalcemic agents can lead to the development of vitamin D-based therapies for treatment of various cancers. In this report, in vitro and in vivo anticancer efficacy, safety, and details of vitamin D receptor (VDR) interactions of PT19c, a novel nonhypercalcemic vitamin D derived anticancer agent, are described.

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Article Synopsis
  • The study explores the potential of 7 Methyl-indole ethyl isothiocyanate (7Me-IEITC) as a treatment for advanced endometrial cancer, highlighting the need for new therapies.
  • 7Me-IEITC was found to significantly reduce the viability of endometrial cancer cell lines (ECC-1 and KLE) through mechanisms involving apoptosis and mitochondrial dysfunction.
  • The compound's effect was linked to oxidative stress and specific changes in protein expression, indicating its cytotoxicity may be primarily due to ROS production, suggesting further research is warranted.
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Background: Numerous vitamin-D analogs exhibited poor response rates, high systemic toxicities and hypercalcemia in human trials to treat cancer. We identified the first non-hypercalcemic anti-cancer vitamin D analog MT19c by altering the A-ring of ergocalciferol. This study describes the therapeutic efficacy and mechanism of action of MT19c in both in vitro and in vivo models.

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Article Synopsis
  • This study explores the effectiveness of new compounds, adamantyl-N-acetylcystein and adamantyl isothiocyanate, in treating gynecological cancers, showing they can kill cancer cells in lab tests.
  • The compounds were found to halt the cancer cell cycle specifically in SKOV-3 ovarian cancer cells and induced apoptosis, evidenced by DNA fragmentation.
  • Adamantyl-N-acetylcystein’s cytotoxic effects rely on increased reactive oxygen species, and future research may enhance its efficacy using signaling inhibitors or antioxidant treatments in real tumor models.
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The objective of the present study was to determine the in-vitro effect of Abietyl-Isothiocyanate (ABITC), a representative of a new class of anti-cancer drugs, on endometrial cancer (EC) cell lines. ABITC at concentrations ≥1 μM displayed dose-dependent and selective cytotoxicity to EC cell lines (ECC-1, AN3CA, RL95-2) in comparison to other cancer cell lines. After treatment with ABITC, ECC-1 unlike control cells displayed hallmark features of apoptosis including chromatin condensation and nuclear fragmentation.

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