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Vázquez-Lizarraga R, Mendoza-Viveros L, Cid-Castro C, Ruiz-Montoya S, Carreño-Vázquez E, Orozco-Solis R. Hypothalamic circuits and aging: keeping the circadian clock updated. Neural Regen Res 2024; 19:1919-1928. [PMID: 38227516 DOI: 10.4103/1673-5374.389624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/20/2023] [Indexed: 01/17/2024] Open
Abstract
Over the past century, age-related diseases, such as cancer, type-2 diabetes, obesity, and mental illness, have shown a significant increase, negatively impacting overall quality of life. Studies on aged animal models have unveiled a progressive discoordination at multiple regulatory levels, including transcriptional, translational, and post-translational processes, resulting from cellular stress and circadian derangements. The circadian clock emerges as a key regulator, sustaining physiological homeostasis and promoting healthy aging through timely molecular coordination of pivotal cellular processes, such as stem-cell function, cellular stress responses, and inter-tissue communication, which become disrupted during aging. Given the crucial role of hypothalamic circuits in regulating organismal physiology, metabolic control, sleep homeostasis, and circadian rhythms, and their dependence on these processes, strategies aimed at enhancing hypothalamic and circadian function, including pharmacological and non-pharmacological approaches, offer systemic benefits for healthy aging. Intranasal brain-directed drug administration represents a promising avenue for effectively targeting specific brain regions, like the hypothalamus, while reducing side effects associated with systemic drug delivery, thereby presenting new therapeutic possibilities for diverse age-related conditions.
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Affiliation(s)
| | - Lucia Mendoza-Viveros
- Instituto Nacional de Medicina Genómica (INMEGEN), México City, México
- Centro de Investigacíon sobre el Envejecimiento, Centro de Investigacíon y de Estudios Avanzados (CIE-CINVESTAV), México City, México
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México UNAM, México City, México
| | - Carolina Cid-Castro
- Instituto Nacional de Medicina Genómica (INMEGEN), México City, México
- Centro de Investigacíon sobre el Envejecimiento, Centro de Investigacíon y de Estudios Avanzados (CIE-CINVESTAV), México City, México
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México UNAM, México City, México
| | | | | | - Ricardo Orozco-Solis
- Instituto Nacional de Medicina Genómica (INMEGEN), México City, México
- Centro de Investigacíon sobre el Envejecimiento, Centro de Investigacíon y de Estudios Avanzados (CIE-CINVESTAV), México City, México
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2
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Hasegawa K, Tamaki M, Shibata E, Inagaki T, Minato M, Yamaguchi S, Shimizu I, Miyakami S, Tada M, Wakino S. Ability of NAD and Sirt1 to epigenetically suppress albuminuria. Clin Exp Nephrol 2024; 28:599-607. [PMID: 38587753 DOI: 10.1007/s10157-024-02502-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024]
Abstract
The time for diabetic nephropathy (DN) to progress from mild to severe is long. Thus, methods to continuously repress DN are required to exert long-lasting effects mediated through epigenetic regulation. In this study, we demonstrated the ability of nicotinamide adenine dinucleotide (NAD) and its metabolites to reduce albuminuria through Sirt1- or Nampt-dependent epigenetic regulation. We previously reported that proximal tubular Sirt1 was lowered before glomerular Sirt1. Repressed glomerular Sirt1 was found to epigenetically elevate Claudin-1. In addition, we reported that proximal tubular Nampt deficiency epigenetically augmented TIMP-1 levels in Sirt6-mediated pathways, leading to type-IV collagen deposition and diabetic fibrosis. Altogether, we propose that the Sirt1/Claudin-1 axis may be crucial in the onset of albuminuria at the early stages of DN and that the Nampt/Sirt6/TIMP-1 axis promotes diabetic fibrosis in the middle to late stages of DN. Finally, administration of NMN, an NAD precursor, epigenetically potentiates the regression of the onset of DN to maintain Sirt1 and repress Claudin-1 in podocytes, suggesting the potential use of NAD metabolites as epigenetic medications for DN.
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Affiliation(s)
- Kazuhiro Hasegawa
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.
| | - Masanori Tamaki
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Eriko Shibata
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Taizo Inagaki
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Masanori Minato
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Sumiyo Yamaguchi
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Ikuko Shimizu
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Shinji Miyakami
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Miho Tada
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Shu Wakino
- Department of Nephrology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
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3
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Wang Y, Kuca K, You L, Nepovimova E, Heger Z, Valko M, Adam V, Wu Q, Jomova K. The role of cellular senescence in neurodegenerative diseases. Arch Toxicol 2024:10.1007/s00204-024-03768-5. [PMID: 38744709 DOI: 10.1007/s00204-024-03768-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/24/2024] [Indexed: 05/16/2024]
Abstract
Increasing evidence has revealed that cellular senescence drives NDs, including Alzheimer's disease (AD) and Parkinson's disease. Different senescent cell populations secrete senescence-associated secretory phenotypes (SASP), including matrix metalloproteinase-3, interleukin (IL)-1α, IL-6, and IL-8, which can harm adjacent microglia. Moreover, these cells possess high expression levels of senescence hallmarks (p16 and p21) and elevated senescence-associated β-galactosidase activity in in vitro and in vivo ND models. These senescence phenotypes contribute to the deposition of β-amyloid and tau-protein tangles. Selective clearance of senescent cells and SASP regulation by inhibiting p38/mitogen-activated protein kinase and nuclear factor kappa B signaling attenuate β-amyloid load and prevent tau-protein tangle deposition, thereby improving cognitive performance in AD mouse models. In addition, telomere shortening, a cellular senescence biomarker, is associated with increased ND risks. Telomere dysfunction causes cellular senescence, stimulating IL-6, tumor necrosis factor-α, and IL-1β secretions. The forced expression of telomerase activators prevents cellular senescence, yielding considerable neuroprotective effects. This review elucidates the mechanism of cellular senescence in ND pathogenesis, suggesting strategies to eliminate or restore senescent cells to a normal phenotype for treating such diseases.
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Affiliation(s)
- Yating Wang
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 500 03, Hradec Králové, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, 500 05, Hradec Kralove, Czech Republic
- Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain
| | - Li You
- College of Physical Education and Health, Chongqing College of International Business and Economics, Chongqing, 401520, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 500 03, Hradec Králové, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Marian Valko
- Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37, Bratislava, Slovakia
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, 434025, China.
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 500 03, Hradec Králové, Czech Republic.
| | - Klaudia Jomova
- Department of Chemistry, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, 949 74, Nitra, Slovakia.
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4
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Park JW, Park SE, Koh W, Jang WH, Choi JH, Roh E, Kang GM, Kim SJ, Lim HS, Park CB, Jeong SY, Moon SY, Lee CH, Kim SY, Choi HJ, Min SH, Lee CJ, Kim MS. Hypothalamic astrocyte NAD + salvage pathway mediates the coupling of dietary fat overconsumption in a mouse model of obesity. Nat Commun 2024; 15:2102. [PMID: 38453901 PMCID: PMC10920699 DOI: 10.1038/s41467-024-46009-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Nicotinamide adenine dinucleotide (NAD)+ serves as a crucial coenzyme in numerous essential biological reactions, and its cellular availability relies on the activity of the nicotinamide phosphoribosyltransferase (NAMPT)-catalyzed salvage pathway. Here we show that treatment with saturated fatty acids activates the NAD+ salvage pathway in hypothalamic astrocytes. Furthermore, inhibition of this pathway mitigates hypothalamic inflammation and attenuates the development of obesity in male mice fed a high-fat diet (HFD). Mechanistically, CD38 functions downstream of the NAD+ salvage pathway in hypothalamic astrocytes burdened with excess fat. The activation of the astrocytic NAMPT-NAD+-CD38 axis in response to fat overload induces proinflammatory responses in the hypothalamus. It also leads to aberrantly activated basal Ca2+ signals and compromised Ca2+ responses to metabolic hormones such as insulin, leptin, and glucagon-like peptide 1, ultimately resulting in dysfunctional hypothalamic astrocytes. Our findings highlight the significant contribution of the hypothalamic astrocytic NAD+ salvage pathway, along with its downstream CD38, to HFD-induced obesity.
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Affiliation(s)
- Jae Woo Park
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Se Eun Park
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Wuhyun Koh
- Center for Cognition and Sociality, Life Science Cluster, Institute for Basic Science, Daejeon, 34126, Korea
| | - Won Hee Jang
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Jong Han Choi
- Division of Endocrinology and Metabolism, Konkuk University Medical Center, Seoul, 05030, Korea
| | - Eun Roh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, 14068, Korea
| | - Gil Myoung Kang
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, 05505, Korea
| | - Seong Jun Kim
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Hyo Sun Lim
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Chae Beom Park
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - So Yeon Jeong
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Sang Yun Moon
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Chan Hee Lee
- Program of Material Science for Medicine and Pharmaceutics, Hallym University, Chuncheon, 24252, Korea
| | - Sang Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Korea
| | - Hyung Jin Choi
- Department of Biomedical Sciences, Wide River Institute of Immunology, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Se Hee Min
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, 05505, Korea
- Division of Endocrinology and Metabolism, Asan Diabetes Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - C Justin Lee
- Center for Cognition and Sociality, Life Science Cluster, Institute for Basic Science, Daejeon, 34126, Korea
| | - Min-Seon Kim
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, 05505, Korea.
- Division of Endocrinology and Metabolism, Asan Diabetes Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.
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5
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Wang Y, Cao Y, Han L, Wang L, Huang Y, Zhao L, Bi Y, Liu G. Deacetylase sirtuin 2 negatively regulates myeloid-derived suppressor cell functions in allograft rejection. Am J Transplant 2023; 23:1845-1857. [PMID: 37633450 DOI: 10.1016/j.ajt.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/20/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
Although myeloid-derived suppressor cells (MDSCs) are critical for allograft survival, their regulatory mechanism remains unclear. Herein, our results showed that metabolism sensor sirtuin 2 (SIRT2) negatively regulates the functions of MDSCs in inducing allogeneic skin graft rejection. Genetic deletion of SIRT2 in myeloid cells (Sirt2Δmye) increased the number of CD11b+Gr1+ MDSCs in bone marrow, spleens, draining lymph nodes, and allografts, inhibited the production of proinflammatory cytokine tumor necrosis factor ɑ, enhanced the production of anti-inflammatory cytokine interleukin 10, and potentiated the suppressive activation of MDSCs in prolonging allograft skin survival. C-X-C motif chemokine receptor 2 is critical for mediating the recruitment and cytokine production of MDSCs induced by SIRT2. Mechanistically, Sirt2Δmye enhanced NAD+ levels, succinate dehydrogenase subunit A (SDHA) activities, and oxidative phosphorylation (OXPHOS) levels in MDSCs after transplantation. Pharmacologically blocking nicotinamide phosphoribosyltransferase effectively reverses the production of cytokines and suppressive activities of MDSC induced by Sirt2Δmye. Blocking OXPHOS with knockdown of SDHA or pharmacological blocking of SDHA significantly restores Sirt2Δmye-mediated stronger MDSC suppressive activity and inflammatory factor productions. Thus, our findings identify a previously unrecognized interplay between NAD+ and SDH-mediated OXPHOS metabolic pathways in regulating MDSC functions induced by the metabolic sensor SIRT2 in allogeneic transplantation.
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Affiliation(s)
- Yufei Wang
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yejin Cao
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Linian Han
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Likun Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yijin Huang
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Longhao Zhao
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yujing Bi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
| | - Guangwei Liu
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China.
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6
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Rathor P, Ch R. Metabolic Basis of Circadian Dysfunction in Parkinson's Disease. BIOLOGY 2023; 12:1294. [PMID: 37887004 PMCID: PMC10604297 DOI: 10.3390/biology12101294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/26/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023]
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative disorders. The management of PD is a challenging aspect for general physicians and neurologists. It is characterized by the progressive loss of dopaminergic neurons. Impaired α-synuclein secretion and dopamine release may cause mitochondrial dysfunction and perturb energy metabolism, subsequently altering the activity and survival of dopaminergic neurons, thus perpetuating the neurodegenerative process in PD. While the etiology of PD remains multifactorial, emerging research indicates a crucial role of circadian dysfunction in its pathogenesis. Researchers have revealed that circadian dysfunction and sleep disorders are common among PD subjects and disruption of circadian rhythms can increase the risk of PD. Hence, understanding the findings of circadian biology from translational research in PD is important for reducing the risk of neurodegeneration and for improving the quality of life. In this review, we discuss the intricate relationship between circadian dysfunction in cellular metabolism and PD by summarizing the evidence from animal models and human studies. Understanding the metabolic basis of circadian dysfunction in PD may shed light on novel therapeutic approaches to restore circadian rhythm, preserve dopaminergic function, and ameliorate disease progression. Further investigation into the complex interplay between circadian rhythm and PD pathogenesis is essential for the development of targeted therapies and interventions to alleviate the burden of this debilitating neurodegenerative disorder.
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Affiliation(s)
- Priya Rathor
- Metabolomics Lab, CSIR—Central Institute of Medicinal & Aromatic Plants, Lucknow 226015, India;
- Academy of Council of Scientific and Industrial Research (ACSIR), Gaziabad 201002, India
| | - Ratnasekhar Ch
- Metabolomics Lab, CSIR—Central Institute of Medicinal & Aromatic Plants, Lucknow 226015, India;
- Academy of Council of Scientific and Industrial Research (ACSIR), Gaziabad 201002, India
- School of Biological Sciences, Queen’s University Belfast, Belfast BT9 5DL, UK
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7
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Hepler C, Bass J. Circadian mechanisms in adipose tissue bioenergetics and plasticity. Genes Dev 2023; 37:454-473. [PMID: 37364987 PMCID: PMC10393195 DOI: 10.1101/gad.350759.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
The circadian clock plays an essential role in coordinating feeding and metabolic rhythms with the light/dark cycle. Disruption of clocks is associated with increased adiposity and metabolic disorders, whereas aligning feeding time with cell-autonomous rhythms in metabolism improves health. Here, we provide a comprehensive overview of recent literature in adipose tissue biology as well as our understanding of molecular mechanisms underlying the circadian regulation of transcription, metabolism, and inflammation in adipose tissue. We highlight recent efforts to uncover the mechanistic links between clocks and adipocyte metabolism, as well as its application to dietary and behavioral interventions to improve health and mitigate obesity.
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Affiliation(s)
- Chelsea Hepler
- Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Joseph Bass
- Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
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