Below you will find Dr. Mirko Beljanski’s 133 Research Publications
Pancreatic cancers are enriched with cancer stem-like cells (CSCs), which are resistant to chemotherapies, and responsible for tumor metastasis and recurrence. We investigated the extract of a medicinal plant Pao pereira for its activity against pancreatic CSCs. Pao inhibited overall proliferation of human pancreatic cancer cell lines and had limited cytotoxicity to normal epithelial cells. In several assays pancreatic CSC population was significantly reduced. In vivo, the Pao extract significantly reduced tumorigenicity of PANC-1 cells. Further investigation is warranted in using Pao as a novel treatment targeting pancreatic CSCs.
The poor treatment outcomes of pancreatic cancer are linked to an enrichment of cancer stem cells (CSCs) in these tumors, which are resistant to chemotherapy and promote metastasis and tumor recurrence. In these experiments, the pancreatic CSC population, identified using cell surface markers or a tumor spheroid formation assay, was significantly reduced by the Rauwolfia vomitoria extract. In vivo the Rauwolfia extract significantly reduced the tumorigenicity of pancreatic cancer cells. Taken together, these data showed that Rauwolfia preferentially inhibited pancreatic cancer stem cells.
Cancer stem cells are a type of stem cell specific to cancer, that is able to reproduce through self-renewal and regeneration into new tumor cells. Cancer stem cells are thought to survive chemotherapy treatments and provide the basis for tumor regrowth. It is critical to find treatments for cancer stem cells to prevent this disease from resurfacing in a person again and again. Research conducted at Kansas University Medical Center concluded that both the Pao pereira (Pau pereira) and Rauwolfia vomitoria extracts inhibited the proliferation of multiple human ovarian cancer cell lines in vitro.