Abstract
Parabens are used as preservatives in various household products, including oral products, cosmetics, and hair/body washes. In recent years, the widespread use of parabens has raised concerns due to the potential health risks associated with their estrogenic effects. In the present study, we evaluated and compared the estrogenic activity of parabens using two cell-based in vitro tests: (1) bioluminescence resonance energy transfer (BRET)-based estrogen receptor alpha (ERα) dimerization using HEK293 cells that were stably transfected with ERα‐fused NanoLuc luciferase (Nluc) and HaloTag (HT) expression vector, and (2) stably transfected transcriptional activation (STTA) assays using ERα-HeLa9903 cells. The following parabens were tested using the BRET‐based ERα dimerization assay and showed estrogenic activity (PC20 values): methyl paraben (MP, 5.98 × 10−5 M), ethyl paraben (EP, 3.29 × 10−5 M), propylparaben (PP, 3.09 × 10−5 M), butyl paraben (BP, 2.58 × 10−5 M), isopropyl paraben (IsoPP, 1.37 × 10−5 M), and isobutyl paraben (IsoBP, 1.43 × 10−5 M). Except MP, all other parabens tested using the STTA assay also showed estrogenic activity: EP, 7.57 × 10−6 M; PP, 1.18 × 10−6 M; BP, 3.02 × 10−7 M; IsoPP, 3.58 × 10−7 M; and IsoBP, 1.80 × 10−7 M. Overall, EP, PP, BP, IsoPP, and IsoBP tested positive for estrogenic activity using both assays. These findings demonstrate that most parabens, albeit not all, induce ERα dimerization and possess estrogenic activity.
Similar content being viewed by others
Data availability
The data could be obtained upon reasonable request to the corresponding author.
References
Engeli RT, Rohrer SR, Vuorinen A, Herdlinger S, Kaserer T, Leugger S, Schuster D, Odermatt A (2017) Interference of paraben compounds with estrogen metabolism by inhibition of 17beta-hydroxysteroid dehydrogenases. Int J Mol Sci 18:2007. https://doi.org/10.3390/ijms18092007
Costa JR, Campos MS, Lima RF, Gomes LS, Marques MR, Taboga SR, Biancardi MF, Brito PVA, Santos FCA (2017) Endocrine-disrupting effects of methylparaben on the adult gerbil prostate. Environ Toxicol 32:1801–1812. https://doi.org/10.1002/tox.22403
Nowak K, Ratajczak-Wrona W, Gorska M, Jablonska E (2018) Parabens and their effects on the endocrine system. Mol Cell Endocrinol 474:238–251. https://doi.org/10.1016/j.mce.2018.03.014
Okubo T, Yokoyama Y, Kano K, Kano I (2001) ER-dependent estrogenic activity of parabens assessed by proliferation of human breast cancer MCF-7 cells and expression of ERalpha and PR. Food Chem Toxicol 39:1225–1232. https://doi.org/10.1016/s0278-6915(01)00073-4
Mitra P, Chatterjee S, Paul N, Ghosh S, Das M (2021) An overview of endocrine disrupting chemical paraben and search for an alternative–a review. In: Proceedings of the zoological society, vol 4. Springer, pp 479–493. https://doi.org/10.1007/s12595-021-00418-x
Vo TT, Yoo YM, Choi KC, Jeung EB (2010) Potential estrogenic effect(s) of parabens at the prepubertal stage of a postnatal female rat model. Reprod Toxicol 29:306–316. https://doi.org/10.1016/j.reprotox.2010.01.013
Chuffa LG, Lupi-Junior LA, Costa AB, Amorim JP, Seiva FR (2017) The role of sex hormones and steroid receptors on female reproductive cancers. Steroids 118:93–108. https://doi.org/10.1016/j.steroids.2016.12.011
Oishi S (2001) Effects of butylparaben on the male reproductive system in rats. Toxicol Ind Health 17:31–39. https://doi.org/10.1191/0748233701th093oa
Oishi S (2004) Lack of spermatotoxic effects of methyl and ethyl esters of p-hydroxybenzoic acid in rats. Food Chem Toxicol 42:1845–1849. https://doi.org/10.1016/j.fct.2004.06.015
Beekhuijzen M, Rijk JCW, Meijer M, de Raaf MA, Pelgrom S (2019) A critical evaluation of thyroid hormone measurements in OECD test guideline studies: is there any added value? Reprod Toxicol 88:56–66. https://doi.org/10.1016/j.reprotox.2019.07.014
Lee HS, Park EJ, Han S, Oh GY, Kim MH, Kang HS, Suh JH, Oh JH, Lee KS, Hwang MS, Moon G, Hong JH, Hwang IG (2016) In vitro OECD test methods applied to screen the estrogenic effect of chemicals, used in Korea. Food Chem Toxicol 95:121–127. https://doi.org/10.1016/j.fct.2016.06.014
OECD (2021) Test No. 455: Performance-based test guideline for stably transfected transactivation in vitro assays to detect estrogen receptor agonists and antagonists. https://doi.org/10.1787/9789264265295-en
Lee SH, Seo H, Seo H, Lazari M, D’Agostino M, Byrd N, Yoon KS, Lee HS, Park Y (2022) An in vitro dimerization assay for the adverse outcome pathway approach in risk assessment of human estrogen receptor alpha-mediated endocrine-disrupting chemicals. Chemosphere 290:133267. https://doi.org/10.1016/j.chemosphere.2021.133267
OECD (2015) Test No. 493: Performance-based test guideline for human recombinant estrogen receptor (hrER) in vitro assays to detect chemicals with ER binding affinity. https://doi.org/10.1787/9789264242623-en
Union P (2009) Regulation (EC) no 1223/2009 of the european parliament and of the council. Off J Eur Union L 342:59
Authority E (2004) Opinion of the scientific panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to para hydroxybenzoates (E 214–219). EFSA J 2:83. https://doi.org/10.2903/j.efsa.2004.83
Lim S (2020) The associations between personal care products use and urinary concentrations of phthalates, parabens, and triclosan in various age groups: the Korean National Environmental Health Survey cycle 3 2015–2017. Sci Total Environ 742:140640. https://doi.org/10.1016/j.scitotenv.2020.140640
Liao C, Chen L, Kannan K (2013) Occurrence of parabens in foodstuffs from China and its implications for human dietary exposure. Environ Int 57–58:68–74. https://doi.org/10.1016/j.envint.2013.04.001
Ma WL, Zhao X, Lin ZY, Mohammed MO, Zhang ZF, Liu LY, Song WW, Li YF (2016) A survey of parabens in commercial pharmaceuticals from China and its implications for human exposure. Environ Int 95:30–35. https://doi.org/10.1016/j.envint.2016.07.013
Fransway AF, Fransway PJ, Belsito DV, Yiannias JA (2019) Paraben toxicology. Dermatitis 30:32–45. https://doi.org/10.1097/DER.0000000000000428
Nowak K, Jablonska E, Garley M, Iwaniuk A, Radziwon P, Wolczynski S, Ratajczak-Wrona W (2022) Investigation of estrogen-like effects of parabens on human neutrophils. Environ Res 214:113893. https://doi.org/10.1016/j.envres.2022.113893
Prusakiewicz JJ, Harville HM, Zhang Y, Ackermann C, Voorman RL (2007) Parabens inhibit human skin estrogen sulfotransferase activity: possible link to paraben estrogenic effects. Toxicology 232:248–256. https://doi.org/10.1016/j.tox.2007.01.010
Vo TT, Jeung EB (2009) An evaluation of estrogenic activity of parabens using uterine calbindin-d9k gene in an immature rat model. Toxicol Sci 112:68–77. https://doi.org/10.1093/toxsci/kfp176
Aker AM, Watkins DJ, Johns LE, Ferguson KK, Soldin OP, Del Anzalota LV, Alshawabkeh AN, Cordero JF, Meeker JD (2016) Phenols and parabens in relation to reproductive and thyroid hormones in pregnant women. Environ Res 151:30–37. https://doi.org/10.1016/j.envres.2016.07.002
Kim S, Carson KA, Chien AL (2021) Methyl paraben may increase risk of pruritus in African Americans whereas Triclosan is inversely associated with pruritus and eczema. Dermatitis 32:124–130. https://doi.org/10.1097/DER.0000000000000495
Matwiejczuk N, Galicka A, Zareba I, Brzoska MM (2020) The protective effect of rosmarinic acid against unfavorable influence of methylparaben and propylparaben on collagen in human skin fibroblasts. Nutrients 12:1282. https://doi.org/10.3390/nu12051282
Handa O, Kokura S, Adachi S, Takagi T, Naito Y, Tanigawa T, Yoshida N, Yoshikawa T (2006) Methylparaben potentiates UV-induced damage of skin keratinocytes. Toxicology 227:62–72. https://doi.org/10.1016/j.tox.2006.07.018
Yasar P, Ayaz G, User SD, Gupur G, Muyan M (2017) Molecular mechanism of estrogen-estrogen receptor signaling. Reprod Med Biol 16:4–20. https://doi.org/10.1002/rmb2.12006
Negi A, Kesari KK, Voisin-Chiret AS (2022) Estrogen receptor-alpha targeting: PROTACs, SNIPERs, Peptide-PROTACs, antibody conjugated PROTACs and SNIPERs. Pharmaceutics 14:2523. https://doi.org/10.3390/pharmaceutics14112523
Seo H, Seo H, Lee HY, Lee SH, Park Y (2023) Comprehensive analysis of cellular estrogen signaling in representative estrogen receptor ligands. Chem Biol Interact 369:110303. https://doi.org/10.1016/j.cbi.2022.110303
Borgna JL, Rochefort H (1980) High-affinity binding to the estrogen receptor of [3H]4-hydroxytamoxifen, an active antiestrogen metabolite. Mol Cell Endocrinol 20:71–85. https://doi.org/10.1016/0303-7207(80)90095-7
Katzenellenbogen BS, Katzenellenbogen JA (2000) Estrogen receptor transcription and transactivation: estrogen receptor alpha and estrogen receptor beta: regulation by selective estrogen receptor modulators and importance in breast cancer. Breast Cancer Res 2:335–344. https://doi.org/10.1186/bcr78
Byford JR, Shaw LE, Drew MG, Pope GS, Sauer MJ, Darbre PD (2002) Oestrogenic activity of parabens in MCF7 human breast cancer cells. J Steroid Biochem Mol Biol 80:49–60. https://doi.org/10.1016/s0960-0760(01)00174-1
Watanabe Y, Kojima H, Takeuchi S, Uramaru N, Ohta S, Kitamura S (2013) Comparative study on transcriptional activity of 17 parabens mediated by estrogen receptor alpha and beta and androgen receptor. Food Chem Toxicol 57:227–234. https://doi.org/10.1016/j.fct.2013.03.036
Routledge EJ, Parker J, Odum J, Ashby J, Sumpter JP (1998) Some alkyl hydroxy benzoate preservatives (parabens) are estrogenic. Toxicol Appl Pharmacol 153:12–19. https://doi.org/10.1006/taap.1998.8544
Blair RM, Fang H, Branham WS, Hass BS, Dial SL, Moland CL, Tong W, Shi L, Perkins R, Sheehan DM (2000) The estrogen receptor relative binding affinities of 188 natural and xenochemicals: structural diversity of ligands. Toxicol Sci 54:138–153. https://doi.org/10.1093/toxsci/54.1.138
Guadarrama P, Fomine S, Salcedo R, Martinez A (2008) Construction of simplified models to simulate estrogenic disruptions by esters of 4-hydroxy benzoic acid (parabens). Biophys Chem 137:1–6. https://doi.org/10.1016/j.bpc.2008.06.001
Guo Y, Wang L, Kannan K (2014) Phthalates and parabens in personal care products from China: concentrations and human exposure. Arch Environ Contam Toxicol 66:113–119. https://doi.org/10.1007/s00244-013-9937-x
Kang HS, Kyung MS, Ko A, Park JH, Hwang MS, Kwon JE, Suh JH, Lee HS, Moon GI, Hong JH, Hwang IG (2016) Urinary concentrations of parabens and their association with demographic factors: a population-based cross-sectional study. Environ Res 146:245–251. https://doi.org/10.1016/j.envres.2015.12.032
Calafat AM, Ye X, Wong LY, Bishop AM, Needham LL (2010) Urinary concentrations of four parabens in the U.S. population: NHANES 2005–2006. Environ Health Perspect 118:679–685. https://doi.org/10.1289/ehp.0901560
Funding
This work was supported by “Cooperative Research Program of Center for Companion Animal Research (project no. PJ01398403), Rural Development Administration, Republic of Korea.
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
Conflict of interest
The authors declare no conflict of interest.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Kim, JY., Park, Y., Lee, SH. et al. Comparative study on estrogen receptor alpha dimerization and transcriptional activity of parabens. Toxicol Res. 40, 153–161 (2024). https://doi.org/10.1007/s43188-023-00212-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s43188-023-00212-1