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Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells

Many studies have shown that dichlorodiphenyltrichloroethane (DDT) exposure raises breast cancer risk. Another insecticide with similar properties is endosulfan, which has been actively used in agriculture after DDT prohibition. Previously, we have identified some estradiol-, progesterone-, and test...

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Autores principales: Kalinina, Tatiana, Kononchuk, Vladislav, Klyushova, Lyubov, Gulyaeva, Lyudmila
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780485/
https://www.ncbi.nlm.nih.gov/pubmed/35051067
http://dx.doi.org/10.3390/toxics10010025
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author Kalinina, Tatiana
Kononchuk, Vladislav
Klyushova, Lyubov
Gulyaeva, Lyudmila
author_facet Kalinina, Tatiana
Kononchuk, Vladislav
Klyushova, Lyubov
Gulyaeva, Lyudmila
author_sort Kalinina, Tatiana
collection PubMed
description Many studies have shown that dichlorodiphenyltrichloroethane (DDT) exposure raises breast cancer risk. Another insecticide with similar properties is endosulfan, which has been actively used in agriculture after DDT prohibition. Previously, we have identified some estradiol-, progesterone-, and testosterone-sensitive microRNAs (miRNAs, miRs). Because DDT and endosulfan have estrogenic, antiandrogenic, and antiprogesterone properties, we hypothesized that these miRNAs are affected by the insecticides. We quantified relative levels of miRNAs and expression levels of their target genes in breast cancer MCF-7 cells treated with p,p′-DDT, o,p′-DDT, or endosulfan. We also quantified miR-19b expression, which, as previously shown, is regulated by estrogen. Here, we observed that miR-19b expression increased in response not only to estradiol but also to testosterone and progesterone. Treatment of MCF-7 cells with p,p′-DDT or endosulfan decreased the protein levels of apoptosis regulators TP53INP1 and APAF1. In cells treated with o,p′-DDT, the TP53INP1 amount decreased after 24 h of incubation, but increased after 48 h of incubation with insecticide. OXTR expression, which is known to be associated with breast carcinogenesis, significantly diminished under the exposure of all insecticides. In cells treated with p,p′-DDT or o,p′-DDT, the observed changes were accompanied by alterations of the levels of hormone-responsive miRNAs: miR-324, miR-190a, miR-190b, miR-27a, miR-193b, and miR-19b.
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spelling pubmed-87804852022-01-22 Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells Kalinina, Tatiana Kononchuk, Vladislav Klyushova, Lyubov Gulyaeva, Lyudmila Toxics Article Many studies have shown that dichlorodiphenyltrichloroethane (DDT) exposure raises breast cancer risk. Another insecticide with similar properties is endosulfan, which has been actively used in agriculture after DDT prohibition. Previously, we have identified some estradiol-, progesterone-, and testosterone-sensitive microRNAs (miRNAs, miRs). Because DDT and endosulfan have estrogenic, antiandrogenic, and antiprogesterone properties, we hypothesized that these miRNAs are affected by the insecticides. We quantified relative levels of miRNAs and expression levels of their target genes in breast cancer MCF-7 cells treated with p,p′-DDT, o,p′-DDT, or endosulfan. We also quantified miR-19b expression, which, as previously shown, is regulated by estrogen. Here, we observed that miR-19b expression increased in response not only to estradiol but also to testosterone and progesterone. Treatment of MCF-7 cells with p,p′-DDT or endosulfan decreased the protein levels of apoptosis regulators TP53INP1 and APAF1. In cells treated with o,p′-DDT, the TP53INP1 amount decreased after 24 h of incubation, but increased after 48 h of incubation with insecticide. OXTR expression, which is known to be associated with breast carcinogenesis, significantly diminished under the exposure of all insecticides. In cells treated with p,p′-DDT or o,p′-DDT, the observed changes were accompanied by alterations of the levels of hormone-responsive miRNAs: miR-324, miR-190a, miR-190b, miR-27a, miR-193b, and miR-19b. MDPI 2022-01-07 /pmc/articles/PMC8780485/ /pubmed/35051067 http://dx.doi.org/10.3390/toxics10010025 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kalinina, Tatiana
Kononchuk, Vladislav
Klyushova, Lyubov
Gulyaeva, Lyudmila
Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title_full Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title_fullStr Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title_full_unstemmed Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title_short Effects of Endocrine Disruptors o,p′-Dichlorodiphenyltrichloroethane, p,p′-Dichlorodiphenyltrichloroethane, and Endosulfan on the Expression of Estradiol-, Progesterone-, and Testosterone-Responsive MicroRNAs and Their Target Genes in MCF-7 Cells
title_sort effects of endocrine disruptors o,p′-dichlorodiphenyltrichloroethane, p,p′-dichlorodiphenyltrichloroethane, and endosulfan on the expression of estradiol-, progesterone-, and testosterone-responsive micrornas and their target genes in mcf-7 cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780485/
https://www.ncbi.nlm.nih.gov/pubmed/35051067
http://dx.doi.org/10.3390/toxics10010025
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