Preprint / Version 1

The therapeutic potential of natural metabolites in targeting endocrine-independent HER-2-negative breast cancer

Authors

  • Mirosława Püsküllüoğlu Department of Clinical Oncology, Maria Skłodowska-Curie National Research Institute of Oncology, Kraków, Poland
  • Izabela Michalak Wrocław University of Science and Technology, Faculty of Chemistry, Department of Advanced Material Technologies, Wrocław, Poland

Keywords:

HER-2 negative breast cancer, anticancer drugs, natural metabolites, chemotherapy, targeted therapy, nanomedicine

Abstract

Breast cancer (BC) is a heterogenous disease, with prognosis and treatment options depending on Estrogen, Progesterone receptor, and Human Epidermal Growth Factor Receptor-2 (HER-2) status. HER-2 negative, endocrine-independent BC presents a significant clinical challenge with limited treatment options. To date, promising strategies like immune checkpoint inhibitors have not yielded breakthroughs in patient prognosis. Despite being considered archaic, agents derived from natural sources, mainly plants, remain backbone of current treatment. In this context, we critically analyze novel naturally-derived drug candidates, elucidate their intricate mechanisms of action, and evaluate their pre-clinical in vitro and in vivo activity in endocrine-independent HER-2 negative BC. Since pre-clinical research success often does not directly correlate with drug approval, we focus on ongoing clinical trials to uncover current trends. Finally, we demonstrate the potential of combining cutting-edge technologies, such as antibody-drug conjugates or nanomedicine, with naturally-derived agents, offering new opportunities that utilize both traditional cytotoxic agents and new metabolites. Keywords: HER-2 negative breast cancer, anticancer drugs, natural metabolites, chemotherapy, targeted therapy, nanomedicine