Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner
Abstract Short‐chain fatty acids (SCFAs) are the end products of the fermentation of dietary fibers by the intestinal microbiota and reported to exert positive effects on host physiology. Acetate is the most abundant SCFA in humans and is shown to improve acute kidney injury in a mouse model of isch...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-07-01
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| Series: | Physiological Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.14814/phy2.15774 |
| _version_ | 1797771089211817984 |
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| author | Chiaki Kawabata Yosuke Hirakawa Reiko Inagi Masaomi Nangaku |
| author_facet | Chiaki Kawabata Yosuke Hirakawa Reiko Inagi Masaomi Nangaku |
| author_sort | Chiaki Kawabata |
| collection | DOAJ |
| description | Abstract Short‐chain fatty acids (SCFAs) are the end products of the fermentation of dietary fibers by the intestinal microbiota and reported to exert positive effects on host physiology. Acetate is the most abundant SCFA in humans and is shown to improve acute kidney injury in a mouse model of ischemia–reperfusion injury. However, how SCFAs protect the kidney and whether SCFAs have a renoprotective effect in chronic kidney disease (CKD) models remain to be elucidated. We investigated whether acetate and other SCFAs could attenuate the kidney damage. In in vitro experiments, cell viability of acetate‐treated human kidney 2 (HK‐2) cells was significantly higher than that of vehicle‐treated in an oxidative stress model, and acetate reduced cellular reactive oxygen species (ROS) production. In mitochondrial analysis, the MitoSOX‐positive cell proportion decreased, and transcription of dynamin‐1‐like protein gene, a fission gene, was decreased by acetate treatment. In in vivo experiments in mice, acetate treatment significantly ameliorated fibrosis induced by unilateral ureteral obstruction, and the oxidative stress marker phosphorylated histone H2AX (γH2AX) was also reduced. Further, acetate treatment ameliorated dysmorphic mitochondria in the proximal tubules, and ROS and mitochondrial analyses suggested that acetate improved mitochondrial damage. Our findings indicate a renoprotective effect of acetate in CKD. |
| first_indexed | 2024-03-12T21:32:28Z |
| format | Article |
| id | doaj.art-54c443327d4646d0ae04a6c4158dc0ab |
| institution | Directory Open Access Journal |
| issn | 2051-817X |
| language | English |
| last_indexed | 2024-03-12T21:32:28Z |
| publishDate | 2023-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Physiological Reports |
| spelling | doaj.art-54c443327d4646d0ae04a6c4158dc0ab2023-07-27T17:26:30ZengWileyPhysiological Reports2051-817X2023-07-011114n/an/a10.14814/phy2.15774Acetate attenuates kidney fibrosis in an oxidative stress‐dependent mannerChiaki Kawabata0Yosuke Hirakawa1Reiko Inagi2Masaomi Nangaku3Division of Nephrology and Endocrinology The University of Tokyo Graduate School of Medicine Tokyo JapanDivision of Nephrology and Endocrinology The University of Tokyo Graduate School of Medicine Tokyo JapanDivision of Chronic Kidney Disease Pathophysiology The University of Tokyo Graduate School of Medicine Tokyo JapanDivision of Nephrology and Endocrinology The University of Tokyo Graduate School of Medicine Tokyo JapanAbstract Short‐chain fatty acids (SCFAs) are the end products of the fermentation of dietary fibers by the intestinal microbiota and reported to exert positive effects on host physiology. Acetate is the most abundant SCFA in humans and is shown to improve acute kidney injury in a mouse model of ischemia–reperfusion injury. However, how SCFAs protect the kidney and whether SCFAs have a renoprotective effect in chronic kidney disease (CKD) models remain to be elucidated. We investigated whether acetate and other SCFAs could attenuate the kidney damage. In in vitro experiments, cell viability of acetate‐treated human kidney 2 (HK‐2) cells was significantly higher than that of vehicle‐treated in an oxidative stress model, and acetate reduced cellular reactive oxygen species (ROS) production. In mitochondrial analysis, the MitoSOX‐positive cell proportion decreased, and transcription of dynamin‐1‐like protein gene, a fission gene, was decreased by acetate treatment. In in vivo experiments in mice, acetate treatment significantly ameliorated fibrosis induced by unilateral ureteral obstruction, and the oxidative stress marker phosphorylated histone H2AX (γH2AX) was also reduced. Further, acetate treatment ameliorated dysmorphic mitochondria in the proximal tubules, and ROS and mitochondrial analyses suggested that acetate improved mitochondrial damage. Our findings indicate a renoprotective effect of acetate in CKD.https://doi.org/10.14814/phy2.15774acetatechronic kidney diseasemitochondriareactive oxygen speciesshort‐chain fatty acid |
| spellingShingle | Chiaki Kawabata Yosuke Hirakawa Reiko Inagi Masaomi Nangaku Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner Physiological Reports acetate chronic kidney disease mitochondria reactive oxygen species short‐chain fatty acid |
| title | Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner |
| title_full | Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner |
| title_fullStr | Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner |
| title_full_unstemmed | Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner |
| title_short | Acetate attenuates kidney fibrosis in an oxidative stress‐dependent manner |
| title_sort | acetate attenuates kidney fibrosis in an oxidative stress dependent manner |
| topic | acetate chronic kidney disease mitochondria reactive oxygen species short‐chain fatty acid |
| url | https://doi.org/10.14814/phy2.15774 |
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