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Jonkhout MCM, Vanhessche T, Ferreira M, Verbinnen I, Withof F, Van der Hoeven G, Szekér K, Azhir Z, Lien WH, Van Eynde A, Bollen M. Embryonic NIPP1 Depletion in Keratinocytes Triggers a Cell Cycle Arrest and Premature Senescence in Adult Mice. J Invest Dermatol 2024:S0022-202X(24)00167-2. [PMID: 38431220 DOI: 10.1016/j.jid.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/24/2024] [Accepted: 02/09/2024] [Indexed: 03/05/2024]
Abstract
NIPP1 is a ubiquitously expressed regulatory subunit of PP1. Its embryonic deletion in keratinocytes causes chronic sterile skin inflammation, epidermal hyperproliferation, and resistance to mutagens in adult mice. To explore the primary effects of NIPP1 deletion, we first examined hair cycle progression of NIPP1 skin knockouts (SKOs). The entry of the first hair cycle in the SKOs was delayed owing to prolonged quiescence of hair follicle stem cells. In contrast, the entry of the second hair cycle in the SKOs was advanced as a result of precocious activation of hair follicle stem cells. The epidermis of SKOs progressively accumulated senescent cells, and this cell-fate switch was accelerated by DNA damage. Primary keratinocytes from SKO neonates and human NIPP1-depleted HaCaT keratinocytes failed to proliferate and showed an increase in the expression of cell cycle inhibitors (p21, p16/Ink4a, and/or p19/Arf) and senescence-associated-secretory-phenotype factors as well as in DNA damage (γH2AX and 53BP1). Our data demonstrate that the primary effect of NIPP1 deletion in keratinocytes is a cell cycle arrest and premature senescence that gradually progresse to chronic senescence and likely contribute to the decreased sensitivity of SKOs to mutagens.
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Affiliation(s)
- Marloes C M Jonkhout
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Tijs Vanhessche
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Mónica Ferreira
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Iris Verbinnen
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Fabienne Withof
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Gerd Van der Hoeven
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Kathelijne Szekér
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Zahra Azhir
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Wen-Hui Lien
- de Duve Institute, Faculty of Medicine, Université catholique de Louvain, Brussels, Belgium
| | - Aleyde Van Eynde
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium.
| | - Mathieu Bollen
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
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Bischoff NS, Proquin H, Jetten MJ, Schrooders Y, Jonkhout MCM, Briedé JJ, van Breda SG, Jennen DGJ, Medina-Reyes EI, Delgado-Buenrostro NL, Chirino YI, van Loveren H, de Kok TM. Correction: Bischoff et al. The Effects of the Food Additive Titanium Dioxide (E171) on Tumor Formation and Gene Expression in the Colon of a Transgenic Mouse Model for Colorectal Cancer. Nanomaterials 2022, 12, 1256. Nanomaterials (Basel) 2023; 13:2888. [PMID: 37947754 PMCID: PMC10650791 DOI: 10.3390/nano13212888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/09/2023] [Indexed: 11/12/2023]
Abstract
In the published publication [...].
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Affiliation(s)
- Nicolaj S. Bischoff
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Héloïse Proquin
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- National Institute for Public Health and Environment (RIVM), Bilthoven, 3721 MA De Bilt, The Netherlands
| | - Marlon J. Jetten
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- Faculty of Health, Medicine and Life Science, Maastricht University Medical Center, 6229 ES Maastricht, The Netherlands
| | - Yannick Schrooders
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Marloes C. M. Jonkhout
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
| | - Jacco J. Briedé
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Simone G. van Breda
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Danyel G. J. Jennen
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Estefany I. Medina-Reyes
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (Y.I.C.)
| | - Norma L. Delgado-Buenrostro
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (Y.I.C.)
| | - Yolanda I. Chirino
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (Y.I.C.)
| | - Henk van Loveren
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Theo M. de Kok
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
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Bischoff NS, Proquin H, Jetten MJ, Schrooders Y, Jonkhout MCM, Briedé JJ, van Breda SG, Jennen DGJ, Medina-Reyes EI, Delgado-Buenrostro NL, Chirino YI, van Loveren H, de Kok TM. Reply to Kaminski, N.E.; Cohen, S.M. Comment on "Bischoff et al. The Effects of the Food Additive Titanium Dioxide (E171) on Tumor Formation and Gene Expression in the Colon of a Transgenic Mouse Model for Colorectal Cancer. Nanomaterials 2022, 12, 1256". Nanomaterials (Basel) 2023; 13:nano13091552. [PMID: 37177098 PMCID: PMC10180508 DOI: 10.3390/nano13091552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/03/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
We appreciate the interest in our article describing transcriptome changes in a transgenic mouse model carrying an APC gene mutation and would like to reply to the reader [...].
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Affiliation(s)
- Nicolaj S Bischoff
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Héloïse Proquin
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
- National Institute for Public Health and Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Marlon J Jetten
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
- Faculty of Health, Medicine and Life Science, Maastricht University Medical Center, 6229 ES Maastricht, The Netherlands
| | - Yannick Schrooders
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Marloes C M Jonkhout
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
| | - Jacco J Briedé
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Simone G van Breda
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Danyel G J Jennen
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Estefany I Medina-Reyes
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico
| | - Norma L Delgado-Buenrostro
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico
| | - Yolanda I Chirino
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico
| | - Henk van Loveren
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Theo M de Kok
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
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Bischoff NS, Proquin H, Jetten MJ, Schrooders Y, Jonkhout MCM, Briedé JJ, van Breda SG, Jennen DGJ, Medina-Reyes EI, Delgado-Buenrostro NL, Chirino YI, van Loveren H, de Kok TM. The Effects of the Food Additive Titanium Dioxide (E171) on Tumor Formation and Gene Expression in the Colon of a Transgenic Mouse Model for Colorectal Cancer. Nanomaterials (Basel) 2022; 12:1256. [PMID: 35457963 PMCID: PMC9027218 DOI: 10.3390/nano12081256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022]
Abstract
Titanium dioxide (TiO2) is present in many different food products as the food additive E171, which is currently scrutinized due to its potential adverse effects, including the stimulation of tumor formation in the gastrointestinal tract. We developed a transgenic mouse model to examine the effects of E171 on colorectal cancer (CRC), using the Cre-LoxP system to create an Apc-gene-knockout model which spontaneously develops colorectal tumors. A pilot study showed that E171 exposed mice developed colorectal adenocarcinomas, which were accompanied by enhanced hyperplasia in epithelial cells, lymphatic nodules at the base of the polyps, and increased tumor size. In the main study, tumor formation was studied following the exposure to 5 mg/kgbw/day of E171 for 9 weeks (Phase I). E171 exposure showed a statistically nonsignificant increase in the number of colorectal tumors in these transgenic mice, as well as a statistically nonsignificant increase in the average number of mice with tumors. Gene expression changes in the colon were analyzed after exposure to 1, 2, and 5 mg/kgbw/day of E171 for 2, 7, 14, and 21 days (Phase II). Whole-genome mRNA analysis revealed the modulation of genes in pathways involved in the regulation of gene expression, cell cycle, post-translational modification, nuclear receptor signaling, and circadian rhythm. The processes associated with these genes might be involved in the enhanced tumor formation and suggest that E171 may contribute to tumor formation and progression by modulation of events related to inflammation, activation of immune responses, cell cycle, and cancer signaling.
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Affiliation(s)
- Nicolaj S. Bischoff
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Héloïse Proquin
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- National Institute for Public Health and Environment (RIVM), Bilthoven, 3721 MA De Bilt, The Netherlands
| | - Marlon J. Jetten
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- Faculty of Health, Medicine and Life Science, Maastricht University Medical Center, 6229 ES Maastricht, The Netherlands
| | - Yannick Schrooders
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
| | - Marloes C. M. Jonkhout
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
- Laboratory of Biosignaling & Therapeutics, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
| | - Jacco J. Briedé
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Simone G. van Breda
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Danyel G. J. Jennen
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Estefany I. Medina-Reyes
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (N.L.D.-B.); (Y.I.C.)
| | - Norma L. Delgado-Buenrostro
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (N.L.D.-B.); (Y.I.C.)
| | - Yolanda I. Chirino
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico; (E.I.M.-R.); (N.L.D.-B.); (Y.I.C.)
| | - Henk van Loveren
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
| | - Theo M. de Kok
- Department of Toxicogenomics, GROW School for Oncology and Reproduction, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (H.P.); (M.J.J.); (Y.S.); (M.C.M.J.); (J.J.B.); (S.G.v.B.); (D.G.J.J.); (H.v.L.); (T.M.d.K.)
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Proquin H, Jonkhout MCM, Jetten MJ, van Loveren H, de Kok TM, Briedé JJ. Transcriptome changes in undifferentiated Caco-2 cells exposed to food-grade titanium dioxide (E171): contribution of the nano- and micro- sized particles. Sci Rep 2019; 9:18287. [PMID: 31797963 PMCID: PMC6893026 DOI: 10.1038/s41598-019-54675-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 11/14/2019] [Indexed: 12/14/2022] Open
Abstract
The food additive titanium dioxide (TiO2), or E171, is a white food colorant. Recent studies showed after E171 ingestion a significantly increased number of colorectal tumours in a colorectal cancer mouse model as well as inflammatory responses and dysregulation of the immune system in the intestine of rats. In the mouse colon, E171 induced gene expression changes related to oxidative stress, impairment of the immune system, activation of signalling and cancer-related processes. E171 comprises nanoparticles (NPs) and microparticles (MPs). Previous in vitro studies showed that E171, NPs and MPs induced oxidative stress responses, DNA damage and micronuclei formation. This study aimed to investigate the relative contribution of the NPs and MPs to effects of E171 at the transcriptome level in undifferentiated Caco-2 cells by genome wide microarray analysis. The results showed that E171, NPs, and MPs induce gene expression changes related to signalling, inflammation, immune system, transport and cancer. At the pathway level, metabolism of proteins with the insulin processing pathway and haemostasis were specific to E171 exposure. The gene expression changes associated with the immune system and inflammation induced by E171, MPs, and NPs suggest the creation of a favourable environment for colon cancer development.
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Affiliation(s)
- Héloïse Proquin
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200, MD, Maastricht, the Netherlands
| | - Marloes C M Jonkhout
- Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, box 901 3000, Leuven, Belgium
| | - Marlon J Jetten
- Complex Tissue Regeneration (CTR), Institute for Technology-Inspired Regenerative Medicine (MERLN), Maastricht University, P.O. Box 616, 6200, MD, Maastricht, the Netherlands
| | - Henk van Loveren
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200, MD, Maastricht, the Netherlands
| | - Theo M de Kok
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200, MD, Maastricht, the Netherlands
| | - Jacob J Briedé
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200, MD, Maastricht, the Netherlands.
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Proquin H, Jetten MJ, Jonkhout MCM, Garduño-Balderas LG, Briedé JJ, de Kok TM, van Loveren H, Chirino YI. Transcriptomics analysis reveals new insights in E171-induced molecular alterations in a mouse model of colon cancer. Sci Rep 2018; 8:9738. [PMID: 29950665 PMCID: PMC6021444 DOI: 10.1038/s41598-018-28063-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 06/15/2018] [Indexed: 12/19/2022] Open
Abstract
Titanium dioxide as a food additive (E171) has been demonstrated to facilitate growth of chemically induced colorectal tumours in vivo and induce transcriptomic changes suggestive of an immune system impairment and cancer development. The present study aimed to investigate the molecular mechanisms behind the tumour stimulatory effects of E171 in combination with azoxymethane (AOM)/dextran sodium sulphate (DSS) and compare these results to a recent study performed under the same conditions with E171 only. BALB/c mice underwent exposure to 5 mg/kgbw/day of E171 by gavage for 2, 7, 14, and 21 days. Whole genome mRNA microarray analyses on the distal colon were performed. The results show that E171 induced a downregulation of genes involved in the innate and adaptive immune system, suggesting impairment of this system. In addition, over time, signalling genes involved in colorectal cancer and other types of cancers were modulated. In relation to cancer development, effects potentially associated with oxidative stress were observed through modulation of genes related to antioxidant production. E171 affected genes involved in biotransformation of xenobiotics which can form reactive intermediates resulting in toxicological effects. These transcriptomics data reflect the early biological responses induced by E171 which precede tumour formation in an AOM/DSS mouse model.
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Affiliation(s)
- Héloïse Proquin
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands.
| | - Marlon J Jetten
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Marloes C M Jonkhout
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | | | - Jacob J Briedé
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Theo M de Kok
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Henk van Loveren
- Department of Toxicogenomics, GROW institute of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Yolanda I Chirino
- Laboratorio de Carcinogénesis y Toxicología, Unidad de Biomedicina, FES-Iztacala, UNAM, Estado de México, Mexico.,IUF-Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225, DE Düsseldorf, Germany
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