Visible Light-Activated Water-Soluble Platicur Nanocolloids: Photocytotoxicity and Metabolomics Studies in Cancer Cells.
Federica De CastroViviana VergaroMichele BenedettiFrancesca BaldassarreLaura Del CocoMaria Michela Dell'AnnaPietro MastrorilliFrancesco Paolo FanizziGiuseppe CiccarellaPublished in: ACS applied bio materials (2020)
Nanoparticle-based drug delivery systems for cancer therapy offer a great promising opportunity as they specifically target cancer cells, also increasing the bioavailability of anticancer drugs characterized by low water solubility. Platicur, [Pt(cur) (NH 3 ) 2 ](NO 3 ), is a cis -diamine-platinum(II) complex linked to curcumin. In this work, an ultrasonication method, coupled with layer by layer technology, allows us to obtain highly aqueous stable Platicur nanocolloids of about 100 nm. The visible light-activated Platicur nanocolloids showed an increased drug release and antitumor activity on HeLa cells, with respect to Platicur nanocolloids in darkness. This occurrence could give very interesting insight into selective activation of the nanodelivered Pt(II) complex and possible side-effect lowering. For the first time, the metabolic effects of Platicur nanocolloid photoactivation, in the HeLa cell line, have been investigated using an NMR-based metabolomics approach coupled with statistical multivariate data analysis. The reported results highlight specific metabolic differences between photoactivated and non-photoactivated Platicur NC-treated HeLa cancer cells.
Keyphrases
- visible light
- data analysis
- cell cycle arrest
- drug release
- water soluble
- cancer therapy
- cell death
- drug delivery
- pi k akt
- mass spectrometry
- induced apoptosis
- magnetic resonance
- risk assessment
- high resolution
- signaling pathway
- photodynamic therapy
- ionic liquid
- atomic force microscopy
- cell proliferation
- endoplasmic reticulum stress
- room temperature
- solid state
- iron oxide