COTI-2, a novel small molecule that is active against multiple human cancer cell lines in vitro and in vivo

  • Oncotarget. 2016 Jul 5;7(27):41363-41379. doi: 10.18632/oncotarget.9133.
Kowthar Y Salim  1 Saman Maleki Vareki  2 Wayne R Danter  1 James Koropatnick  2  3  4  5  6
Affiliations
  • 1. Critical Outcome Technologies Inc., London, Ontario, Canada.
  • 2. Cancer Research Laboratory Program, Lawson Health Research Institute, London, Ontario, Canada.
  • 3. Department of Microbiology and Immunology, Western University, London, Ontario, Canada.
  • 4. Department of Pathology, Western University, London, Ontario, Canada.
  • 5. Department of Oncology, Western University, London, Ontario, Canada.
  • 6. Department of Physiology and Pharmacology, Western University, London, Ontario, Canada.
Abstract

Identification of novel anti-cancer compounds with high efficacy and low toxicity is critical in drug development. High-throughput screening and Other such strategies are generally resource-intensive. Therefore, in silico computer-aided drug design has gained rapid acceptance and popularity. We employed our proprietary computational platform (CHEMSAS®), which uses a unique combination of traditional and modern pharmacology principles, statistical modeling, medicinal chemistry, and machine-learning technologies to discover and optimize novel compounds that could target various cancers. COTI-2 is a small molecule candidate anti-cancer drug identified using CHEMSAS. This study describes the in vitro and in vivo evaluation of COTI-2. Our data demonstrate that COTI-2 is effective against a diverse group of human Cancer cell lines regardless of their tissue of origin or genetic makeup. Most treated Cancer cell lines were sensitive to COTI-2 at nanomolar concentrations. When compared to traditional chemotherapy or targeted-therapy agents, COTI-2 showed superior activity against tumor cells, in vitro and in vivo. Despite its potent anti-tumor efficacy, COTI-2 was safe and well-tolerated in vivo. Although the mechanism of action of COTI-2 is still under investigation, preliminary results indicate that it is not a traditional kinase or an HSP90 Inhibitor.

Keywords
CHEMSAS; COTI-2; cancer; small molecule; targeted-therapy.
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