A tumour suppressive relationship between mineralocorticoid and retinoic acid receptors activates a transcriptional program consistent with a reverse Warburg effect in breast cancer
BACKGROUND: The role of nuclear receptors in both the aetiology and treatment of breast cancer is exemplified by the use of the oestrogen receptor (ER) as a prognostic marker and treatment target. Treatments targeting the oestrogen signalling pathway are initially highly effective for most patients. However, for the breast cancers that fail to respond, or become resistant, to current endocrine treatments, the long-term outlook is poor. ER is a member of the nuclear receptor superfamily, comprising 48 members in the human, many of which are expressed in the breast and could be used as alternative targets in cases where current treatments are ineffective.
METHODS: We used sparse canonical correlation analysis to interrogate potential novel nuclear receptor expression relationships in normal breast and breast cancer. These were further explored using whole transcriptome profiling in breast cancer cells after combinations of ligand treatments.
RESULTS: Using this approach, we discovered a tumour suppressive relationship between the mineralocorticoid receptor (MR) and retinoic acid receptors (RAR), in particular RARβ. Expression profiling of MR expressing breast cancer cells revealed that mineralocorticoid and retinoid co-treatment activated an expression program consistent with a reverse Warburg effect and growth inhibition, which was not observed with either ligand alone. Moreover, high expression of both MR and RARB was associated with improved breast cancer-specific survival.
CONCLUSION: Our study reveals a previously unknown relationship between MR and RAR in the breast, which is dependent on menopausal state and altered in malignancy. This finding identifies potential new targets for the treatment of breast cancers that are refractory to existing therapeutic options.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:22 |
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| Enthalten in: |
Breast cancer research : BCR - 22(2020), 1 vom: 04. Nov., Seite 122 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Doan, Tram B [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 13.01.2021 Date Revised 13.01.2021 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1186/s13058-020-01355-x |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM317165232 |
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| 100 | 1 | |a Doan, Tram B |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A tumour suppressive relationship between mineralocorticoid and retinoic acid receptors activates a transcriptional program consistent with a reverse Warburg effect in breast cancer |
| 264 | 1 | |c 2020 | |
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| 500 | |a Date Completed 13.01.2021 | ||
| 500 | |a Date Revised 13.01.2021 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: The role of nuclear receptors in both the aetiology and treatment of breast cancer is exemplified by the use of the oestrogen receptor (ER) as a prognostic marker and treatment target. Treatments targeting the oestrogen signalling pathway are initially highly effective for most patients. However, for the breast cancers that fail to respond, or become resistant, to current endocrine treatments, the long-term outlook is poor. ER is a member of the nuclear receptor superfamily, comprising 48 members in the human, many of which are expressed in the breast and could be used as alternative targets in cases where current treatments are ineffective | ||
| 520 | |a METHODS: We used sparse canonical correlation analysis to interrogate potential novel nuclear receptor expression relationships in normal breast and breast cancer. These were further explored using whole transcriptome profiling in breast cancer cells after combinations of ligand treatments | ||
| 520 | |a RESULTS: Using this approach, we discovered a tumour suppressive relationship between the mineralocorticoid receptor (MR) and retinoic acid receptors (RAR), in particular RARβ. Expression profiling of MR expressing breast cancer cells revealed that mineralocorticoid and retinoid co-treatment activated an expression program consistent with a reverse Warburg effect and growth inhibition, which was not observed with either ligand alone. Moreover, high expression of both MR and RARB was associated with improved breast cancer-specific survival | ||
| 520 | |a CONCLUSION: Our study reveals a previously unknown relationship between MR and RAR in the breast, which is dependent on menopausal state and altered in malignancy. This finding identifies potential new targets for the treatment of breast cancers that are refractory to existing therapeutic options | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Breast cancer | |
| 650 | 4 | |a Gene expression profiling | |
| 650 | 4 | |a Mineralocorticoid receptor | |
| 650 | 4 | |a Retinoic acid receptor | |
| 650 | 4 | |a Warburg effect | |
| 650 | 7 | |a Receptors, Estrogen |2 NLM | |
| 650 | 7 | |a Receptors, Mineralocorticoid |2 NLM | |
| 650 | 7 | |a Receptors, Retinoic Acid |2 NLM | |
| 650 | 7 | |a retinoic acid receptor beta |2 NLM | |
| 700 | 1 | |a Cheung, Vanessa |e verfasserin |4 aut | |
| 700 | 1 | |a Clyne, Colin D |e verfasserin |4 aut | |
| 700 | 1 | |a Hilton, Heidi N |e verfasserin |4 aut | |
| 700 | 1 | |a Eriksson, Natalie |e verfasserin |4 aut | |
| 700 | 1 | |a Young, Morag J |e verfasserin |4 aut | |
| 700 | 1 | |a Funder, John W |e verfasserin |4 aut | |
| 700 | 1 | |a Muscat, George E O |e verfasserin |4 aut | |
| 700 | 1 | |a Fuller, Peter J |e verfasserin |4 aut | |
| 700 | 1 | |a Clarke, Christine L |e verfasserin |4 aut | |
| 700 | 1 | |a Graham, J Dinny |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:22 |g year:2020 |g number:1 |g day:04 |g month:11 |g pages:122 |
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