Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach
The toxic effect of TiO2 nanoparticles (TNP) greatly varies with the variation in synthesis protocol followed. Any morphological alteration of TNPs affects their activity. In the present study, we report the detailed toxicological analysis of TNPs fabricated by a microwave irradiation–assisted hybri...
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doaj-43b3236020d945a084167a14a0c829ad2020-11-25T03:01:06ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852020-07-01810.3389/fbioe.2020.00606488639Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid ApproachShivendu Ranjan0Nandita Dasgupta1Debasish Mishra2Chidambaram Ramalingam3Faculty of Engineering and the Built Environment, University of Johannesburg, Johannesburg, South AfricaFaculty of Engineering and the Built Environment, University of Johannesburg, Johannesburg, South AfricaBio-Inspired Design Laboratory, School of Bio Sciences and Technology, VIT University, Vellore, IndiaIndustrial Biotechnology Division, School of Bio Sciences and Technology, VIT University, Vellore, IndiaThe toxic effect of TiO2 nanoparticles (TNP) greatly varies with the variation in synthesis protocol followed. Any morphological alteration of TNPs affects their activity. In the present study, we report the detailed toxicological analysis of TNPs fabricated by a microwave irradiation–assisted hybrid chemical approach. The toxicological mechanism was studied in human colon cancer cell lines (HCT116). Results indicate that TNP induces oxidative stress on HCT116, which, in turn, causes mitochondrial membrane depolarization. We also observed activation of Bcl-2 and caspase-3 by Western blot analysis. This indicates TNPs induce mitochondrial-mediated apoptosis. Furthermore, G1 cell cycle arrest was observed by flow-cytometric analysis. This study provides an understanding of the mechanism of action for apoptosis induced by TNPs, which can be further used to design safe TNPs for various consumer products and also suggests that extensive research needs to be done on harmful effects of TNPs synthesized from different approaches before commercial application.https://www.frontiersin.org/article/10.3389/fbioe.2020.00606/fulltitanium dioxide nanoparticlecell cycle arrestWestern blottoxicitymechanism of action |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shivendu Ranjan Nandita Dasgupta Debasish Mishra Chidambaram Ramalingam |
spellingShingle |
Shivendu Ranjan Nandita Dasgupta Debasish Mishra Chidambaram Ramalingam Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach Frontiers in Bioengineering and Biotechnology titanium dioxide nanoparticle cell cycle arrest Western blot toxicity mechanism of action |
author_facet |
Shivendu Ranjan Nandita Dasgupta Debasish Mishra Chidambaram Ramalingam |
author_sort |
Shivendu Ranjan |
title |
Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach |
title_short |
Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach |
title_full |
Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach |
title_fullStr |
Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach |
title_full_unstemmed |
Involvement of Bcl-2 Activation and G1 Cell Cycle Arrest in Colon Cancer Cells Induced by Titanium Dioxide Nanoparticles Synthesized by Microwave-Assisted Hybrid Approach |
title_sort |
involvement of bcl-2 activation and g1 cell cycle arrest in colon cancer cells induced by titanium dioxide nanoparticles synthesized by microwave-assisted hybrid approach |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Bioengineering and Biotechnology |
issn |
2296-4185 |
publishDate |
2020-07-01 |
description |
The toxic effect of TiO2 nanoparticles (TNP) greatly varies with the variation in synthesis protocol followed. Any morphological alteration of TNPs affects their activity. In the present study, we report the detailed toxicological analysis of TNPs fabricated by a microwave irradiation–assisted hybrid chemical approach. The toxicological mechanism was studied in human colon cancer cell lines (HCT116). Results indicate that TNP induces oxidative stress on HCT116, which, in turn, causes mitochondrial membrane depolarization. We also observed activation of Bcl-2 and caspase-3 by Western blot analysis. This indicates TNPs induce mitochondrial-mediated apoptosis. Furthermore, G1 cell cycle arrest was observed by flow-cytometric analysis. This study provides an understanding of the mechanism of action for apoptosis induced by TNPs, which can be further used to design safe TNPs for various consumer products and also suggests that extensive research needs to be done on harmful effects of TNPs synthesized from different approaches before commercial application. |
topic |
titanium dioxide nanoparticle cell cycle arrest Western blot toxicity mechanism of action |
url |
https://www.frontiersin.org/article/10.3389/fbioe.2020.00606/full |
work_keys_str_mv |
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