Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes

Fludioxonil is fungicide used in agriculture, which is present in fruits and vegetables. In this study, the effects of fludioxonil on human immune cell viability, apoptosis, cell cycle arrest, and mitochondrial membrane potential were examined in human immune cells, such as Jurkat T cells and Ramos...

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Main Authors: Gun-Hwi Lee, Kyung-A Hwang, Kyung-Chul Choi
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/9/9/500
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author Gun-Hwi Lee
Kyung-A Hwang
Kyung-Chul Choi
author_facet Gun-Hwi Lee
Kyung-A Hwang
Kyung-Chul Choi
author_sort Gun-Hwi Lee
collection DOAJ
description Fludioxonil is fungicide used in agriculture, which is present in fruits and vegetables. In this study, the effects of fludioxonil on human immune cell viability, apoptosis, cell cycle arrest, and mitochondrial membrane potential were examined in human immune cells, such as Jurkat T cells and Ramos B cells. To examine the cell viability, Jurkat T cells and Ramos B cells were treated with fludioxonil (10<sup>&#8722;9</sup>&#8722;10<sup>&#8722;5</sup> M) for 24 h and 48 h. Water soluble tetrazolium salt assay showed that fludioxonil decreased Jurkat T cell and Ramos B cell viability. Jurkat T cell viability decreased at 24 and 48 h, but Ramos B cell viability decreased only at 48 h. JC-1 dye revealed decreased mitochondrial membrane potential in fludioxonil-treated Jurkat T cells and Ramos B cells. To evaluate apoptosis, annexin-V conjugated FITC, AF488, and propidium iodide (PI) were used and to evaluate cell cycle arrest PI was used. Apoptosis and cell cycle arrest were induced by fludioxonil (10<sup>&#8722;7</sup>&#8722;10<sup>&#8722;5</sup> M) in the Jurkat T cells at 24 and 48 h and Ramos B cells at 48 h. Moreover, the protein levels of pro-apoptotic proteins, such as p53, BAX, and cleaved caspase 3, were increased and anti-apoptotic protein Bcl-2 was decreased by fludioxonil. Expression of the Fas receptor related to the extrinsic apoptosis pathway was increased by fludioxonil. Additionally, cyclin D1 and cyclin E1 were decreased by fludioxonil. In the present study, fludioxonil induced immunotoxicity in human T cells and B cells through apoptosis and cell cycle arrest. Therefore, the present study suggests that fludioxonil induces the cellular toxicity in immune cells.
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spelling doaj.art-ff8ffb75348746a080e8ed346be83f7b2022-12-21T22:55:45ZengMDPI AGBiomolecules2218-273X2019-09-019950010.3390/biom9090500biom9090500Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B LymphocytesGun-Hwi Lee0Kyung-A Hwang1Kyung-Chul Choi2Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, KoreaLaboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, KoreaLaboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, KoreaFludioxonil is fungicide used in agriculture, which is present in fruits and vegetables. In this study, the effects of fludioxonil on human immune cell viability, apoptosis, cell cycle arrest, and mitochondrial membrane potential were examined in human immune cells, such as Jurkat T cells and Ramos B cells. To examine the cell viability, Jurkat T cells and Ramos B cells were treated with fludioxonil (10<sup>&#8722;9</sup>&#8722;10<sup>&#8722;5</sup> M) for 24 h and 48 h. Water soluble tetrazolium salt assay showed that fludioxonil decreased Jurkat T cell and Ramos B cell viability. Jurkat T cell viability decreased at 24 and 48 h, but Ramos B cell viability decreased only at 48 h. JC-1 dye revealed decreased mitochondrial membrane potential in fludioxonil-treated Jurkat T cells and Ramos B cells. To evaluate apoptosis, annexin-V conjugated FITC, AF488, and propidium iodide (PI) were used and to evaluate cell cycle arrest PI was used. Apoptosis and cell cycle arrest were induced by fludioxonil (10<sup>&#8722;7</sup>&#8722;10<sup>&#8722;5</sup> M) in the Jurkat T cells at 24 and 48 h and Ramos B cells at 48 h. Moreover, the protein levels of pro-apoptotic proteins, such as p53, BAX, and cleaved caspase 3, were increased and anti-apoptotic protein Bcl-2 was decreased by fludioxonil. Expression of the Fas receptor related to the extrinsic apoptosis pathway was increased by fludioxonil. Additionally, cyclin D1 and cyclin E1 were decreased by fludioxonil. In the present study, fludioxonil induced immunotoxicity in human T cells and B cells through apoptosis and cell cycle arrest. Therefore, the present study suggests that fludioxonil induces the cellular toxicity in immune cells.https://www.mdpi.com/2218-273X/9/9/500fludioxonillymphocyteapoptosiscell cycle arrest
spellingShingle Gun-Hwi Lee
Kyung-A Hwang
Kyung-Chul Choi
Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
Biomolecules
fludioxonil
lymphocyte
apoptosis
cell cycle arrest
title Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
title_full Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
title_fullStr Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
title_full_unstemmed Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
title_short Effects of Fludioxonil on the Cell Growth and Apoptosis in T and B Lymphocytes
title_sort effects of fludioxonil on the cell growth and apoptosis in t and b lymphocytes
topic fludioxonil
lymphocyte
apoptosis
cell cycle arrest
url https://www.mdpi.com/2218-273X/9/9/500
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