Inhibiting Metastasis and Improving Chemosensitivity Via Chitosan-Coated Selenium Nanoparticles for Brain Cancer Therapy

Overview

Journal Nanomaterials (Basel)

Date 2022 Aug 12

PMID 35957037

Authors

Paweena Dana

Nuttaporn Pimpha

Angkana Chaipuang

Nutthanit Thumrongsiri

Prattana Tanyapanyachon

Anukul Taweechaipaisankul

Walailuk Chonniyom

Natsorn Watcharadulyarat

Sith Sathornsumetee

Nattika Saengkrit

Affiliations

Soon will be listed here.

Abstract

Selenium nanoparticles (SeNPs) were synthesized to overcome the limitations of selenium, such as its narrow safe range and low water solubility. SeNPs reduce the toxicity and improve the bioavailability of selenium. Chitosan-coated SeNPs (Cs-SeNPs) were developed to further stabilize SeNPs and to test their effects against glioma cells. The effects of Cs-SeNPs on cell growth were evaluated in monolayer and 3D-tumor spheroid culture. Cell migration and cell invasion were determined using a trans-well assay. The effect of Cs-SeNPs on chemotherapeutic drug 5-fluorouracil (5-FU) sensitivity of glioma cells was determined in tumor spheroids. An in vitro blood-brain barrier (BBB) model was established to test the permeability of Cs-SeNPs. SeNPs and Cs-SeNPs can reduce the cell viability of glioma cells in a dose-dependent manner. Compared with SeNPs, Cs-SeNPs more strongly inhibited 3D-tumor spheroid growth. Cs-SeNPs exhibited stronger effects in inhibiting cell migration and cell invasion than SeNPs. Improved 5-FU sensitivity was observed in Cs-SeNP-treated cells. Cellular uptake in glioma cells indicated a higher uptake rate of coumarin-6-labeled Cs-SeNPs than SeNPs. The capability of coumarin-6 associated Cs-SeNPs to pass through the BBB was confirmed. Taken together, Cs-SeNPs provide exceptional performance and are a potential alternative therapeutic strategy for future glioma treatment.

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