The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics

Copper high aspect ratio structures (CuHARS) and silver cystine nanoparticles (AgCysNPs) are two unique micro/nano particles under study here that show extensive anti-cancer effects on a glioma tumor cell line. These micro/nano particles have shown potent toxicity in the presence of inflammatory sti...

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Main Authors: Neela Prajapati, Anik Karan, Elnaz Khezerlou, Mark A. DeCoster
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-01-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fchem.2020.629835/full
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author Neela Prajapati
Anik Karan
Elnaz Khezerlou
Mark A. DeCoster
Mark A. DeCoster
author_facet Neela Prajapati
Anik Karan
Elnaz Khezerlou
Mark A. DeCoster
Mark A. DeCoster
author_sort Neela Prajapati
collection DOAJ
description Copper high aspect ratio structures (CuHARS) and silver cystine nanoparticles (AgCysNPs) are two unique micro/nano particles under study here that show extensive anti-cancer effects on a glioma tumor cell line. These micro/nano particles have shown potent toxicity in the presence of inflammatory stimulus (combination of tumor necrosis factor, [TNF] and lipo-polysaccharide, LPS). CuHARS with a concentration of 20 μg/ml uniquely increased the catalytic generation of nitric oxide (NO), an important contributor in the immune system. This NO was generated in a cell culture tumor microenvironment (TME) in the presence of 25 µM S-nitrosothiol (cysteine-NO) and the inflammatory stimulus. CuHARS increased the NO production by 68.75% when compared to untreated glioma cells with CysNO and inflammatory stimulus. The production of NO was significantly higher under similar circumstances in the case of normal primary structural cells like brain microvascular endothelial cells (BMVECs). The production of NO by BMVECs went up by 181.25% compared to glioma cells. This significant increase in the NO concentration could have added up to tumorigenesis but the anti-cancer effect of CuHARS was prominent enough to lower down the viability of glioma cells by approximately 20% and increased the metabolism of structural cells, BMVECs by approximately 200%. The immunomodulatory effect of NO in the TME under these circumstances in the presence of the novel micro/nano material, CuHARS has risen up compared to the effect of inflammatory stimulus alone. The potency and specific nature of these materials toward tumor cells may make them suitable candidates for cancer treatment. Successive treatment of CuHARS to glioma cells also proved to be an effective approach considering the decrease in the total count of cells by 11.84 fold in case of three successive treatments compared to a single dose which only decreased the cell count by 2.45 fold showing the dose-dependent increasing toxicity toward glioma cells. AgCysNPs are another potent nanomaterial which also proved its significant toxic nature toward tumor cell lines as demonstrated here, but their immunomodulatory response is still unclear and needs to be explored further.
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spelling doaj.art-4332dbcc2c9b4967935994624da7b7182022-12-21T23:04:31ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462021-01-01810.3389/fchem.2020.629835629835The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer TheranosticsNeela Prajapati0Anik Karan1Elnaz Khezerlou2Mark A. DeCoster3Mark A. DeCoster4Department of Biomedical Engineering, Louisiana Tech University, Ruston, LA, United StatesDepartment of Biomedical Engineering, Louisiana Tech University, Ruston, LA, United StatesDepartment of Biomedical Engineering, Louisiana Tech University, Ruston, LA, United StatesDepartment of Biomedical Engineering, Louisiana Tech University, Ruston, LA, United StatesInstitute for Micromanufacturing, Louisiana Tech University, Ruston, LA, United StatesCopper high aspect ratio structures (CuHARS) and silver cystine nanoparticles (AgCysNPs) are two unique micro/nano particles under study here that show extensive anti-cancer effects on a glioma tumor cell line. These micro/nano particles have shown potent toxicity in the presence of inflammatory stimulus (combination of tumor necrosis factor, [TNF] and lipo-polysaccharide, LPS). CuHARS with a concentration of 20 μg/ml uniquely increased the catalytic generation of nitric oxide (NO), an important contributor in the immune system. This NO was generated in a cell culture tumor microenvironment (TME) in the presence of 25 µM S-nitrosothiol (cysteine-NO) and the inflammatory stimulus. CuHARS increased the NO production by 68.75% when compared to untreated glioma cells with CysNO and inflammatory stimulus. The production of NO was significantly higher under similar circumstances in the case of normal primary structural cells like brain microvascular endothelial cells (BMVECs). The production of NO by BMVECs went up by 181.25% compared to glioma cells. This significant increase in the NO concentration could have added up to tumorigenesis but the anti-cancer effect of CuHARS was prominent enough to lower down the viability of glioma cells by approximately 20% and increased the metabolism of structural cells, BMVECs by approximately 200%. The immunomodulatory effect of NO in the TME under these circumstances in the presence of the novel micro/nano material, CuHARS has risen up compared to the effect of inflammatory stimulus alone. The potency and specific nature of these materials toward tumor cells may make them suitable candidates for cancer treatment. Successive treatment of CuHARS to glioma cells also proved to be an effective approach considering the decrease in the total count of cells by 11.84 fold in case of three successive treatments compared to a single dose which only decreased the cell count by 2.45 fold showing the dose-dependent increasing toxicity toward glioma cells. AgCysNPs are another potent nanomaterial which also proved its significant toxic nature toward tumor cell lines as demonstrated here, but their immunomodulatory response is still unclear and needs to be explored further.https://www.frontiersin.org/articles/10.3389/fchem.2020.629835/fullCopper/silver nano particlesnitric oxidegliomabrain microvascular endothelial cellstumor microenvironmentinflammatory stimulus
spellingShingle Neela Prajapati
Anik Karan
Elnaz Khezerlou
Mark A. DeCoster
Mark A. DeCoster
The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
Frontiers in Chemistry
Copper/silver nano particles
nitric oxide
glioma
brain microvascular endothelial cells
tumor microenvironment
inflammatory stimulus
title The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
title_full The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
title_fullStr The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
title_full_unstemmed The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
title_short The Immunomodulatory Potential of Copper and Silver Based Self-Assembled Metal Organic Biohybrids Nanomaterials in Cancer Theranostics
title_sort immunomodulatory potential of copper and silver based self assembled metal organic biohybrids nanomaterials in cancer theranostics
topic Copper/silver nano particles
nitric oxide
glioma
brain microvascular endothelial cells
tumor microenvironment
inflammatory stimulus
url https://www.frontiersin.org/articles/10.3389/fchem.2020.629835/full
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