Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study

The effect of folic acid (FA) on breast cancer (BC) risk is uncertain. We hypothesised that this uncertainty may be due, in part, to differential effects of FA between BC cells with different phenotypes. To test this we investigated the effect of treatment with FA concentrations within the range of...

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Main Authors: R. Jordan Price, Karen A. Lillycrop, Graham C. Burdge
Format: Article
Language:English
Published: Cambridge University Press 2016-01-01
Series:Journal of Nutritional Science
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2048679016000082/type/journal_article
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author R. Jordan Price
Karen A. Lillycrop
Graham C. Burdge
author_facet R. Jordan Price
Karen A. Lillycrop
Graham C. Burdge
author_sort R. Jordan Price
collection DOAJ
description The effect of folic acid (FA) on breast cancer (BC) risk is uncertain. We hypothesised that this uncertainty may be due, in part, to differential effects of FA between BC cells with different phenotypes. To test this we investigated the effect of treatment with FA concentrations within the range of unmetabolised FA reported in humans on the expression of the transcriptome of non-transformed (MCF10A) and cancerous (MCF7 and Hs578T) BC cells. The total number of transcripts altered was: MCF10A, seventy-five (seventy up-regulated); MCF7, twenty-four (fourteen up-regulated); and Hs578T, 328 (156 up-regulated). Only the cancer-associated gene TAGLN was altered by FA in all three cell lines. In MCF10A and Hs578T cells, FA treatment decreased pathways associated with apoptosis, cell death and senescence, but increased those associated with cell proliferation. The folate transporters SLC19A1, SLC46A1 and FOLR1 were differentially expressed between cell lines tested. However, the level of expression was not altered by FA treatment. These findings suggest that physiological concentrations of FA can induce cell type-specific changes in gene regulation in a manner that is consistent with proliferative phenotype. This has implications for understanding the role of FA in BC risk. In addition, these findings support the suggestion that differences in gene expression induced by FA may involve differential activities of folate transporters. Together these findings indicate the need for further studies of the effect of FA on BC.
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spelling doaj.art-d14f3f0f94b5414d9dea728588bdfe812023-03-09T12:38:49ZengCambridge University PressJournal of Nutritional Science2048-67902016-01-01510.1017/jns.2016.8Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept studyR. Jordan Price0Karen A. Lillycrop1Graham C. Burdge2Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UKCentre for Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UKAcademic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UKThe effect of folic acid (FA) on breast cancer (BC) risk is uncertain. We hypothesised that this uncertainty may be due, in part, to differential effects of FA between BC cells with different phenotypes. To test this we investigated the effect of treatment with FA concentrations within the range of unmetabolised FA reported in humans on the expression of the transcriptome of non-transformed (MCF10A) and cancerous (MCF7 and Hs578T) BC cells. The total number of transcripts altered was: MCF10A, seventy-five (seventy up-regulated); MCF7, twenty-four (fourteen up-regulated); and Hs578T, 328 (156 up-regulated). Only the cancer-associated gene TAGLN was altered by FA in all three cell lines. In MCF10A and Hs578T cells, FA treatment decreased pathways associated with apoptosis, cell death and senescence, but increased those associated with cell proliferation. The folate transporters SLC19A1, SLC46A1 and FOLR1 were differentially expressed between cell lines tested. However, the level of expression was not altered by FA treatment. These findings suggest that physiological concentrations of FA can induce cell type-specific changes in gene regulation in a manner that is consistent with proliferative phenotype. This has implications for understanding the role of FA in BC risk. In addition, these findings support the suggestion that differences in gene expression induced by FA may involve differential activities of folate transporters. Together these findings indicate the need for further studies of the effect of FA on BC.https://www.cambridge.org/core/product/identifier/S2048679016000082/type/journal_articleFolic acidFolate transportersCell proliferationBreast cancerMicroarraysFolate receptorsPathway analysis
spellingShingle R. Jordan Price
Karen A. Lillycrop
Graham C. Burdge
Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
Journal of Nutritional Science
Folic acid
Folate transporters
Cell proliferation
Breast cancer
Microarrays
Folate receptors
Pathway analysis
title Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
title_full Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
title_fullStr Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
title_full_unstemmed Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
title_short Folic acid induces cell type-specific changes in the transcriptome of breast cancer cell lines: a proof-of-concept study
title_sort folic acid induces cell type specific changes in the transcriptome of breast cancer cell lines a proof of concept study
topic Folic acid
Folate transporters
Cell proliferation
Breast cancer
Microarrays
Folate receptors
Pathway analysis
url https://www.cambridge.org/core/product/identifier/S2048679016000082/type/journal_article
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