Academic Journal
Butyrate reduces cellular magnesium absorption independently of metabolic regulation in Caco-2 human colon cells
| العنوان: | Butyrate reduces cellular magnesium absorption independently of metabolic regulation in Caco-2 human colon cells |
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| المؤلفون: | Lisanne M. M. Gommers, Pieter A. Leermakers, Jenny van der Wijst, Sara R. Roig, Anastasia Adella, Melissa A. E. van de Wal, René J. M. Bindels, Jeroen H. F. de Baaij, Joost G. J. Hoenderop |
| المصدر: | Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022) |
| بيانات النشر: | Nature Portfolio, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract Digestion of dietary fibers by gut bacteria has been shown to stimulate intestinal mineral absorption [e.g., calcium (Ca2+) and magnesium (Mg2+)]. Although it has been suggested that local pH and short-chain fatty acid (SCFA) concentrations determine divalent cation absorption, the exact molecular mechanisms are still unknown. Therefore, this study aimed to determine the effects of SCFAs on intestinal Mg2+ absorption. We show that the butyrate concentration in the colon negatively correlates with serum Mg2+ levels in wildtype mice. Moreover, Na-butyrate significantly inhibited Mg2+ uptake in Caco-2 cells, while Ca2+ uptake was unaffected. Although Na-butyrate significantly lowered total ATP production rate, and resulted in increased phosphorylation of AMP-activated protein kinase (AMPK), inhibition of Mg2+ uptake by butyrate preceded these consequences. Importantly, electrophysiological examinations demonstrated that intracellular butyrate directly reduced the activity of the heteromeric Mg2+ channel complex, transient receptor potential melastatin (TRPM)6/7. Blocking cellular butyrate uptake prevented its inhibitory effect on Mg2+ uptake, demonstrating that butyrate acts intracellularly. Our work identified butyrate as novel regulator of intestinal Mg2+ uptake that works independently from metabolic regulation. This finding further highlights the role of microbial fermentation in the regulation of mineral absorption. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-022-21683-6 |
| URL الوصول: | https://doaj.org/article/9d03c143298747c499e96a31f9d2af42 |
| رقم الانضمام: | edsdoj.9d03c143298747c499e96a31f9d2af42 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-022-21683-6 |