Background: Amaranth is a crop that can be grown in different soils and climates, being resistant to high temperatures, drought, and some pests. The amaranth plant has nutritional qualities and desirable biological properties.
Aim Of The Study: The aim of the study is to investigate the potential antitumor properties of Amaranthus-mantegazzianus-protein isolate (MPI) and to elucidate the possible mechanism of action.
Methods: We use four different tumor-derived and in vitro-transformed cell lines with different morphology and tumorigenicity (MC3T3E1, UMR106, Caco-2, and TC7).
Results: The MPI showed an antiproliferative effect on four cell lines with different potencies. The tumor-cell line UMR106 was the most sensitive (IC(50): 1 mg/ml). This antiproliferative effect of the MPI was enhanced by protease treatment (IC(50): 0.5 after 30% hydrolysis). In addition, the MPI produced morphological changes and caused a rearrangement of the cytoskeleton in UMR106 cell line. In an attempt to elucidate the mechanism of action, we observed that the MPI inhibited cell adhesion and induced apoptosis and necrosis in the UMR106 cell line. In reversibility studies, we were able to observe both temporary and permanent cytostatic and cytotoxic effects on the part of the MPI, depending on its concentration.
Conclusions: we report a protein isolate from the seeds of Amaranthus mantegazzianus that exhibit potential antitumor properties and propose a putative mechanism of action.
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http://dx.doi.org/10.1007/s00394-009-0051-9 | DOI Listing |
Nat Commun
December 2024
Key Laboratory of Immune Response and Immunotherapy, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Scienes, Guangzhou, China.
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December 2024
Division of Plastic Surgery, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
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View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, P. R. China.
Owing to their attractive antitumor effects, aminated fullerene derivatives are emerging as promising therapeutic drugs for cancer. However, their in vivo applications are severely limited due to cation toxicity. To address this problem, human heavy chain ferritin (HFn), possessing natural biocompatibility is utilized, to develop a novel supramolecular assembly drug delivery system.
View Article and Find Full Text PDFPharm Dev Technol
December 2024
Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
The increasing prevalence of dental pathogens and oral cancer calls for new therapeutic agents. Nanoparticle (NPs) based tumor therapy enables precise targeting and controlled drug release, improving anti-cancer treatment efficacy while reducing systemic toxicity. Zinc oxide NPs (ZnO NPs) are notable in nanomedicine for their exceptional physicochemical and biological properties.
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