Extract from Aloysia polystachya Induces the Cell Death of Colorectal Cancer Stem Cells

Extract from Aloysia polystachya Induces the Cell Death of Colorectal Cancer Stem Cells

Cancer stem cells (CSCs) are an important player in the resistance of cancers to therapy. In this work, we determined the flavonoids composition and biological action of Aloysia polystachya (AP) extracts in colorectal cancer. The chemical characterization of extracts was performed by HPLC. Assays of...

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Bibliographic Details
Published in:Nutrition and cancer Vol. 72; no. 6; pp. 1004 - 1017
Main Authors: Soares Machado, Mileni, Palma, Alejandra, Panelo, Laura C., Paz, Leonardo A., Rosa, Francisco, Lira, María Cecilia, Azurmendi, Pablo, Rubio, María F., Lenz, Guido, Urtreger, Alejandro J., Costas, Mónica A.
Format: Journal Article
Language:English
Published: United States Taylor & Francis 17-08-2020
Taylor & Francis Ltd
Subjects:
5-Fluorouracil
Aloysia
Apoptosis
Biocompatibility
Cancer
Cell death
Colorectal cancer
Colorectal carcinoma
Cytotoxicity
Efflux
Flavonoids
High-performance liquid chromatography
In vivo methods and tests
Liquid chromatography
Pluripotency
Stem cell transplantation
Stem cells
Toxicity
Tumor cell lines
Tumors
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Summary:Cancer stem cells (CSCs) are an important player in the resistance of cancers to therapy. In this work, we determined the flavonoids composition and biological action of Aloysia polystachya (AP) extracts in colorectal cancer. The chemical characterization of extracts was performed by HPLC. Assays of cytotoxicity, apoptosis, migration and invasion, metalloproteases activity, clonogenic growth, tumorspheres formation, Hoechts efflux, pluripotency marker expression and sensitization to chemotherapeutic drugs were performed in vitro in human HCT116 and murine CT26 colorectal cancer cells. The AP toxicity and effect in tumor growth administered alone or in combination with 5- Fluorouracile was analyzed in vivo, including histopathological studies. We found that AP extracts induced in vitro the apoptosis of colorectal cancer cell lines decreasing the CSC proportion. Moreover, they were capable to kill 5-Fluorouracile resistant side population cells. At not toxic doses in vivo, AP extracts inhibited tumor growth. Regarding the ability to reduce the CSC population, AP extracts deserves to be investigated as a useful therapy for colorectal cancer treatment.
ISSN:0163-5581
1532-7914
DOI:10.1080/01635581.2019.1669676