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Furuuchi R, Shimizu I, Yoshida Y, Katsuumi G, Suda M, Kubota Y, Walsh K, Minamino T. Endothelial SIRT-1 has a critical role in the maintenance of capillarization in brown adipose tissue. iScience 2022; 25:105424. [PMID: 36388988 PMCID: PMC9641227 DOI: 10.1016/j.isci.2022.105424] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/06/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Brown adipose tissue (BAT) has critical roles in thermogenesis and systemic metabolism. Capillary rarefaction was reported to develop in BAT with dietary obesity, and previous studies showed that suppression of vascular endothelial growth factor A (VEGF-A) reduced capillary density in BAT, promoting the functional decline of this organ. Capillarization is regulated through the balance between angiogenesis and vasculogenesis on the one hand and apoptosis of endothelial cells (ECs) on the other; however, the role of EC apoptosis in BAT remained to be explored. In studies testing the role of boysenberry polyphenols (BoyP) in BAT, we found that BoyP decreased EC apoptosis, enhanced capillarization in BAT, and ameliorated dietary BAT dysfunction, which was associated with the upregulation of nicotinamide adenine dinucleotide-dependent protein deacetylase sirtuin 1 (SIRT-1) in ECs. Our studies suggest that EC SIRT-1 would be one of the potential targets of BoyP that contributes to BAT capillarization and function.
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Affiliation(s)
- Ryo Furuuchi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Bourbon Corporation, Niigata 945-8611, Japan,Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Corresponding author
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Department of Advanced Senotherapeutics, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kenneth Walsh
- Division of Cardiovascular Medicine, Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan,Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan,Corresponding author
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2
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Suda M, Shimizu I, Katsuumi G, Yoshida Y, Hayashi Y, Nakao M, Ikegami R, Furuuchi R, Ozawa T, Ozaki K, Minamino T. Elimination of senescent cells targeting Senescence associated glycoprotein (SAGP) improved the ageing-associated diseases and extended the lifespan. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3573] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Cellular senescence entails an irreversible growth arrest and a pro-inflammatory secretory phenotype, which contributes to aging-associated disorders such as atherosclerosis and diabetes, however, underlying mechanisms are largely unknown. In this study, we identified a novel protein, senescence-associated glycoprotein (SAGP), as a biomarker of cellular senescence and we also found that elimination of senescent cells targeting SAGP attenuated aging-associated disorders such as atherosclerosis, diabetes and frailty.
First, we identified that SAGP as a senescent marker by microarray analysis of senescent human endothelial cells compared with young endothelial cells. The expression of SAGP was significantly increased in the aorta of chronological aging mice and ApoE-knockout mice. Then we measured SAGP expression in the patients registered in our hospital and found that mean SAGP expression was significantly higher in patients with atherosclerotic diseases compared to patients without atherosclerotic diseases. These data suggest that SAGP would become the novel marker of cellular senescence and/or aging-associated disorders.
We found SAGP co-localized with lysosome and bound to V-ATPase, proton pump in the acid organelles such as lysosome. The electron microscopy analysis revealed that the dysfunctional lysosomes were accumulated in SAGP knockdown endothelial cell. The genetic deletion of SAGP resulted in the increase of lysosomal pH and the suppression of mitochondrial autophagy, mitophagy. And this associated with the high level of mitochondrial reactive oxygen species (ROS) and promoted premature senescence in human endothelial cells. These data suggest that SAGP was induced by the lysosomal stress in the senescent cells to protects senescent cells by maintaining the lysosomal homeostasis.
Recently, it is reported that elimination of senescent cells (senolysis) reversibly improved pathological aging phenotypes and also extended the lifespan. We established senolytic therapy targeting SAGP. We generated SAGP-DTR (diphtheria toxin receptor) transgenic mice, in which we could eliminate the SAGP- positive senescent cells using DT (diphtheria toxin). We found elimination of SAGP positive senescent cells significantly reduced the atherosclerotic plaque burden in the aorta of ApoE-KO mice and improved the glucose metabolism of dietary obese mice, indicating that SAGP could be a useful target for senolytic therapy. For clinical implication, we then developed a cytotoxic vaccine targeting SAGP. Treatment with SAGP vaccine successfully eliminated SAGP positive senescent cells and attenuated atherosclerosis and metabolic dysfunction. Surprisingly, administration of SAGP vaccine to Zmpste24-KO mice, premature aging mice, extended the lifespan. These data indicate that targeting SAGP-positive cells could be a novel strategy for senolytic therapy.
Effect of SAGP vaccine
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research by Japan Society for the Promotion of Science (JSPS)
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Affiliation(s)
- M Suda
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - I Shimizu
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - G Katsuumi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Yoshida
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - Y Hayashi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - M Nakao
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Ikegami
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Furuuchi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Ozawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - K Ozaki
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Minamino
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Katsuumi G, Shimizu I, Suda M, Yoshida Y, Hayashi Y, Nakao M, Furuuchi R, Hsiao Y, Minamino T. A novel senolytic drug, seno-7284 ameliorates aging phenotype and age-related cardiometabolic diseases. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Cellular senescence occurs as a result of various genotoxic stresses and it plays a pivotal role in aging and age-related disorders. Recently, it was shown that elimination of senescent cells, so-called “senolysis” has the potential to become a promising novel therapy for age-related disorders in several mice models including cardiovascular diseases. However, there is no senolytic drug available in clinical settings currently.
Purpose
The present study was aimed to identify a novel senolytic reagent effective for cardiometabolic disease among compounds already available in clinical settings. Here we demonstrate that a compound called “seno-7284” exhibits senolytic effect in murine models of type 2 diabetes, atherosclerosis, progeroid and chronological aging.
Methods
We generated diet-induced obesity/diabetic mice model by imposing high-fat diet from 4-week-old for two months, atherosclerosis mice model by imposing western diet to ApoE homozygous knockout mice (ApoE-KO mice) from 4-week-old for 3 months. We administered seno-7284 mixed in the diet (0.03% w/w) to each mouse model for 1, 2 or 4 weeks. For the analysis, we carried out some physiological examinations including glucose tolerance test (GTT) and insulin tolerance test (ITT), then harvested tissue samples and took them to molecular biological analysis including real-time PCR, western blotting, RNA-sequence, etc. We also generated Zmpste24 homozygous knockout mice (Zmpste24-KO mice) as a progeroid mice model to measure their lifespan. Seno-7284 was administered to Zmpste24-KO mice from 12-week-old to the end of life. We also administrated seno-7284 to chronological aged mice at 1-year-old for 20 weeks and their physical function was examined with rotarod running test and hand-grip test.
Results
Seno-7284 reduced the accumulation of senescent cells in visceral adipose tissue of dietary obese mice as senescence-associated beta-galactosidase (SA-beta-gal) staining exhibits (Figure 1a). This effect results in ameliorating insulin tolerance (Figure 1b) and adipose tissue inflammation after 4-week administration of seno-7284. We also found administrating Seno-7284 for two weeks also reduced the accumulation of senescent cells in the atherosclerotic lesion in the aorta of ApoE-KO mice (Figure 1c) and inhibited advancing atherosclerosis (Figure 1d). Surprisingly, seno-7284 significantly improved the lifespan of Zmpste24 KO mice (Figure 1e). Seno-7284 also improved the physical function of chronologically aged mice by administrating it from 1-year-old for 20 weeks (Figure 1f). In-vitro studies didn't exhibit seno-7284 kills senescent cells directly, but further analysis including RNA-seq or metabolomic analysis speculated that seno-7284 stimulates endogenous senolytic function of NK-cells and CD8+ T-cells.
Conclusion
Our results indicate that seno-7284 would become a promising senolytic drug that exhibits novel therapeutic machinery for aging and age-related cardiometabolic diseases.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research (KAKENHI) C, Niigata University Tsukada medical research grant
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Affiliation(s)
- G Katsuumi
- Niigata University Graduate School of Medical and Dental Sciences, Cardiovascular Biology and Medicine, Niigata, Japan
| | - I Shimizu
- Niigata University Graduate School of Medical and Dental Sciences, Molecular Aging and Cell Biology, Niigata, Japan
| | - M Suda
- Niigata University Graduate School of Medical and Dental Sciences, Cardiovascular Biology and Medicine, Niigata, Japan
| | - Y Yoshida
- Niigata University Graduate School of Medical and Dental Sciences, Molecular Aging and Cell Biology, Niigata, Japan
| | - Y Hayashi
- Niigata University Graduate School of Medical and Dental Sciences, Cardiovascular Biology and Medicine, Niigata, Japan
| | - M Nakao
- Niigata University Graduate School of Medical and Dental Sciences, Cardiovascular Biology and Medicine, Niigata, Japan
| | - R Furuuchi
- Niigata University Graduate School of Medical and Dental Sciences, Molecular Aging and Cell Biology, Niigata, Japan
| | - Y.T Hsiao
- Niigata University Graduate School of Medical and Dental Sciences, Molecular Aging and Cell Biology, Niigata, Japan
| | - T Minamino
- Niigata University Graduate School of Medical and Dental Sciences, Cardiovascular Biology and Medicine, Niigata, Japan
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Suda M, Shimizu I, Yoshida Y, Katsuumi G, Hayashi Y, Ikegami R, Furuuchi R, Nakao M, Ozawa T, Minamino T. 5892Elimination of cells expressing Senescence associated glycoprotein (SAGP) attenuates the atherosclerotic diseases. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Cellular senescence is defined as a state of irreversible growth arrest and is accompanied by changes of both cell morphology and gene expression. Although accumulation of senescent vascular endothelial cells impair the vessel homeostasis and promote atherosclerotic diseases, underlying mechanisms are largely unknown. In this study, we identified a novel protein, senescence-associated glycoprotein (SAGP), as a biomarker of cellular senescence and we found modulation of SAGP or elimination of senescent cells targeting SAGP would become a novel therapy for atherosclerotic diseases.
We found that SAGP expression was significantly increased in human endothelial cells undergoing replicative senescence compared with young endothelial cells. We also found SAGP expression in aorta was significantly increased both in chronological aging mice or ApoE knockout mice. Furthermore, we measured SAGP expression in patients registered in our hospital and found that mean SAGP expression was significantly higher in patients with atherosclerotic diseases compared to patients without atherosclerotic diseases.These data suggest that SAGP would become a novel cellular senescence and/or atherosclerotic disease marker.
Genetic deletion of SAGP resulted in high level of mitochondrial reactive oxygen species (ROS) and promoted premature senescence in human endothelial cells. And this associated with suppression of mitochondrial autophagy, mitophagy. We found SAGP co-localized with lysosome by immunocytochemistry. In addition, the electron microscopy analysis revealed that the dysfunctional lysosomes were accumulated in SAGP knockdown endothelial cell, suggesting that SAGP maintain lysosomal homeostasis.
Next, wegenerated ApoE-KO/ SAGP overexpression mice and found that atherosclerotic plaque burden was attenuated in these double-transgenic mice. In contrast, SAGP/ApoE double knockout mice showed progression in atherosclerosis. These data suggest that modulation of SAGPwould become a new therapeutic target for atherosclerotic diseases.
SAGP vaccine
Recently, it is reported that elimination of senescent cells (senolysis) reversibly improved pathological aging phenotypes and also extended the lifespan. We have taken another approach for atherosclerotic diseases, senolytic therapy targeting SAGP. We generated SAGP-DTR (diphtheria toxin receptor) transgenic mice, in which we could eliminate the SAGP- positive senescent cells using DT (diphtheria toxin). We found elimination of SAGP positive senescent cells significantly reduced the atherosclerotic plaque burden, indicating that SAGP would become a useful target for senolytic therapy. We then developed a cytotoxic vaccine targeting SAGP. Treatment with SAGP vaccine successfully eliminated SAGP positive senescent cells. Administration of SAGP vaccine to ApoE-KO mice significantly reduced atherogenesis. These data indicate that targeting SAGP-positive cells could become a strategy for senolytic therapy.
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Affiliation(s)
- M Suda
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - I Shimizu
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - Y Yoshida
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - G Katsuumi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Hayashi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Ikegami
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Furuuchi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - M Nakao
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Ozawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Minamino
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Katsuumi G, Shimizu I, Yoshida Y, Suda M, Hayashi Y, Ikegami R, Wakasugi T, Nakao M, Furuuchi R, Nagasawa A, Mikawa R, Sugimoto M, Minamino T. Abstract 752: A Novel Senolytic Drug, Seno-7284 Ameliorates Aging and Age-related Cardiometabolic Disorders. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.752] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Accumulation of senescent cells is promoted in various organs as aging, and it also contributes to the progression of age-related disorders. Recent reports have demonstrated the elimination of senescent cells, so-called "senolysis" ameliorated various age-related disorders including cardiovascular diseases. However, there is currently no senolytic drug available in clinical settings. Here, we found a novel senolytic drug (termed “seno-7284”) from those already used in clinical setting and it exhibited senolytic effect in murine models of type 2 diabetes, atherosclerosis and progeroid aging. Conducting senescence-associated beta-galactosidase staining(SA-beta gal), we found that administrating seno-7284 for one week significantly reduced the accumulation of senescent cells in viscerala dipose tissue of diabetic mice induced by fed high-fat diet(Figure). This drug also ameliorated systemic glucose metabolism and adipose tissue inflammation without a reduction of body weight. Further analysis including RNA-seq analysis suggested seno-7284 stimulates the endogenous senolytic function of NK cells and CD8+ T cells via the Cxcl9-Cxcr3 axis. We also found administrating seno-7284 for two weeks also reduced the accumulation of senescent cells and atherosclerotic lesions in the aorta of western-diet-fed ApoE knock out mice. Surprisingly, this drug significantly improved the lifespan of Zmpste24 KO progeroid aging mice. Correctively, our results indicate that seno-7284 mediates its senolytic effect through the recruitment of lymphocytes. Senolytics would become a promising therapy for aging and age-related cardiometabolic disorders.
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Affiliation(s)
- Goro Katsuumi
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Ippei Shimizu
- Div of Molecular Aging and Cell Biology, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Yohko Yoshida
- Div of Molecular Aging and Cell Biology, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Masayoshi Suda
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Yuka Hayashi
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Ryutaro Ikegami
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Takayuki Wakasugi
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Masaaki Nakao
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Ryo Furuuchi
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Ayako Nagasawa
- Div of Thoracic and Cardiovascular Surgery, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
| | - Ryota Mikawa
- Dept of Mechanism of Aging, National Cntr for Geriatrics and Gerontology, Ohbu, Japan
| | - Masataka Sugimoto
- Dept of Mechanism of Aging, National Cntr for Geriatrics and Gerontology, Ohbu, Japan
| | - Tohru Minamino
- Dept of Cardiovascular Biology and Medicine, Niigata Univ Graduate Sch of Med and Dental Sciences, Niitaga, Japan
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Furuuchi R, Shimizu I, Yoshida Y, Hayashi Y, Ikegami R, Suda M, Katsuumi G, Wakasugi T, Nakao M, Minamino T. Boysenberry polyphenol inhibits endothelial dysfunction and improves vascular health. PLoS One 2018; 13:e0202051. [PMID: 30106986 PMCID: PMC6091942 DOI: 10.1371/journal.pone.0202051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
Endothelial cells have an important role in maintaining vascular homeostasis. Age-related disorders (including obesity, diabetes, and hypertension) or aging per se induce endothelial dysfunction that predisposes to the development of atherosclerosis. Polyphenols have been reported to suppress age-related endothelial cell disorders, but their role in vascular function is yet to be determined. We investigated the influence of boysenberry polyphenol on vascular health under metabolic stress in a murine model of dietary obesity. We found that administration of boysenberry polyphenol suppressed production of reactive oxygen species (ROS) and increased production of nitric oxide (NO) in the aorta. It has been reported that p53 induces cellular senescence and has a crucial role in age-related disorders, including heart failure and diabetes. Administration of boysenberry polyphenol significantly reduced the endothelial p53 level in the aorta and ameliorated endothelial cell dysfunction in iliac arteries under metabolic stress. Boysenberry polyphenol also reduced ROS and p53 levels in cultured human umbilical vein endothelial cells (HUVECs), while increasing NO production. Uncoupled endothelial nitric oxide synthase (eNOS monomer) is known to promote ROS production. We found that boysenberry polyphenol reduced eNOS monomer levels both in vivo and in vitro, along with an increase of eNOS dimerization. To investigate the components of boysenberry polyphenol mediating these favorable biological effects, we extracted the anthocyanin fractions. We found that anthocyanins contributed to suppression of ROS and p53, in association with increased NO production and eNOS dimerization. In an ex vivo study, anthocyanins promoted relaxation of iliac arteries from mice with dietary obesity. These findings indicate that boysenberry polyphenol and anthocyanins, a major component of this polyphenol, inhibit endothelial dysfunction and contribute to maintenance of vascular homeostasis.
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Affiliation(s)
- Ryo Furuuchi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Bourbon Corporation, Niigata, Japan
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yohko Yoshida
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Molecular Aging and Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuka Hayashi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryutaro Ikegami
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masayoshi Suda
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Goro Katsuumi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takayuki Wakasugi
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masaaki Nakao
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- * E-mail: ,
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Suda M, Shimizu I, Yoshida Y, Hayashi Y, Katsuumi G, Ikegami R, Wakasugi T, Nagasawa A, Nakao M, Furuuchi R, Ujiie A, Ozawa T, Minamino T. P595Senescence-associated glycoprotein (SAGP) inhibits age-related endothelial dysfunction by the activation of mitophagy in vascular diseases. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M Suda
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - I Shimizu
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - Y Yoshida
- Niigata University, Division of molecular aging and cell biology, Niigata, Japan
| | - Y Hayashi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - G Katsuumi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Ikegami
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Wakasugi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Nagasawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - M Nakao
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Furuuchi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Ujiie
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Ozawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Minamino
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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8
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Matsushima A, Furuuchi R, Shirai M, Nagai S, Yokoyama T, Nishida H, Hirayama M. Effects of acute and chronic boysenberry intake on blood pressure and endothelial function in spontaneous hypertensive rats. J Nutr Sci Vitaminol (Tokyo) 2014; 60:43-51. [PMID: 24759259 DOI: 10.3177/jnsv.60.43] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The effects of acute or chronic intake of boysenberry juice or artificial vinegar on blood pressure (BP) and endothelial function were investigated in spontaneous hypertensive rats (SHR). A single administration of boysenberry juice (BJ, equivalent to 0.5 mL/kg body weight) or artificial boysenberry juice vinegar (BJV, equivalent to 0.5 mL BJ and 0.10 g acetic acid/kg body weight) decreased both systolic blood pressure (SBP) and diastolic blood pressure (DBP) significantly. Reductions in SBP of the control group compared with the BJ and BJV groups reached maxima of -16.8±4.3 and -28.4±7.3 mmHg 8 h after administration, respectively. Chronic SBP- and DBP-lowering effects were also observed upon daily feedings of both BJ and BJV at 4 wk. No significant differences were found in SBP or DBP between respective acute and chronic intake of BJ and BJV, except for the decrease in DBP after 4 wk of BJV intake. This suggests that the polyphenol constituents in BJ and BJV likely play a major role in lowering SBP and DBP under these conditions and that acetic acid added to BJ exerts a DBP-lowering effect after 4 wk of BJV intake. The polyphenolic constituents of these beverages might elevate plasma NO concentration via aortic endothelial nitric oxide synthase activation, but the effects of chronic intake on blood pressure might also be at least partly mediated by the renin-angiotensin system. These results may help explain the beneficial effects of boysenberry intake on cardiovascular health, such as reduced blood pressure and improved endothelial function.
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9
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Matsusima A, Furuuchi R, Sakaguchi Y, Goto H, Yokoyama T, Nishida H, Hirayama M. Acute and chronic flow-mediated dilation and blood pressure responses to daily intake of boysenberry juice: a preliminary study. Int J Food Sci Nutr 2013; 64:988-92. [PMID: 23848379 DOI: 10.3109/09637486.2013.812617] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
There is an increasing interest in dietary polyphenols for risk reduction in cardiovascular diseases. The aim of this study was to evaluate acute and chronic flow-mediated dilation (FMD) and blood pressure responses to daily intake of boysenberry juice. FMD of the brachial artery was measured in six subjects in the initial, intermediate and follow-up stages of a 4-week open-label intervention study. The intake of boysenberry juice (180 ml/d) increased FMD with progression of intervention stage, and FMD differed in the follow-up stage compared with pre-intake baseline (p = 0.0163 < 0.0167 = 0.1/6) using Bonferroni correction. Changes in systolic blood pressure (SBP) correlated negatively with SBP before intake only in the follow-up stage (r = -0.961 and p = 0.0007 at 3.5 h), indicating a greater SBP reduction in subjects with higher SBP. These results suggest that daily intake of boysenberry juice is beneficial for reducing cardiovascular risk.
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Affiliation(s)
- Akito Matsusima
- Bourbon Institutes of Health Science, Bourbon Corporation , Kashiwazaki City , Japan
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Furuuchi R, Yokoyama T, Watanabe Y, Hirayama M. Identification and quantification of short oligomeric proanthocyanidins and other polyphenols in boysenberry seeds and juice. J Agric Food Chem 2011; 59:3738-3746. [PMID: 21391678 DOI: 10.1021/jf104976n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Proanthocyanidins and other polyphenols in the seeds and juice of boysenberry were quantitatively analyzed. Polyphenolic extracts were prepared from the waste seeds and commercial juice by chromatographic fractionation. Compositional analysis revealed that both extracts contained six polyphenolic classes: flavanol monomers, proanthocyanidins, anthocyanins, ellagic acid, ellagitannins, and flavonol glycosides. Ellagitannins were the most abundant polyphenols in both extracts. Proanthocyanidins were present as short oligomers consisting of dimeric and trimeric procyanidins and propelargonidins, with the most abundant component being procyanidin B4 in both extracts. Quantification by high-performance liquid chromatography-mass spectrometry (HPLC-MS) revealed that the seeds contained a 72-fold higher amount of proanthocyanidins than the juice. These results indicate that boysenberry fruits contain short oligomeric proanthocyanidins along with flavanol monomers and the seeds represent a good source of short oligomeric proanthocyanidins.
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Affiliation(s)
- Ryo Furuuchi
- Department of Food Science, Niigata University of Pharmacy and Applied Life Sciences, Akiha-ku, Niigata, Japan
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11
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Furuuchi R, Imai EI, Honda H, Hatori K, Matsuno K. Evolving lipid vesicles in prebiotic hydrothermal environments. ORIGINS LIFE EVOL B 2005; 35:333-43. [PMID: 16228647 DOI: 10.1007/s11084-005-2039-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2003] [Accepted: 04/05/2004] [Indexed: 10/25/2022]
Abstract
We compared three different kinds of lipid vesicles made of saturated fatty acids, unsaturated fatty acids, and phospholipids for their evolutionary capabilities in a simulated hydrothermal environment. Encapsulation of the glycine monomers enhanced the oligomerization of peptides in all cases. Fatty acid vesicles remained stable at higher temperatures and efficiently utilized heat energy for this synthetic reaction. Phospholipid vesicles were destabilized by higher temperatures, and thus were found to be better suited to enhance synthetic reactions at lower temperatures.
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Affiliation(s)
- Ryo Furuuchi
- Department of BioEngineering, Nagaoka University of Technology, Nagaoka, 940-2188, Japan
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