1
|
Kardam S, Ambasta RK, Kumar P. Overview of pro-inflammatory and pro-survival components in neuroinflammatory signalling and neurodegeneration. Ageing Res Rev 2024; 100:102465. [PMID: 39187022 DOI: 10.1016/j.arr.2024.102465] [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: 07/10/2024] [Revised: 08/07/2024] [Accepted: 08/18/2024] [Indexed: 08/28/2024]
Abstract
Neurodegenerative diseases (NDDs) are identified by the progressive deterioration of neurons and a subsequent decline in cognitive function, creating an enormous burden on the healthcare system globally. Neuroinflammation is an intricate procedure that initiates the immune response in the central nervous system (CNS) and significantly impacts the expansion of NDDs. This study scrutinizes the complicated interaction between neuronal degeneration and neuroinflammation, with an appropriate emphasis on their reciprocal impacts. It also describes how neuroinflammatory reactions in NDDs are controlled by activating certain pro-inflammatory transcription factors, including p38 MAPK, FAF1, Toll-like receptors (TLRs), and STAT3. Alternatively, it evaluates the impact of pro-survival transcription factors, such as the SOCS pathway, YY1, SIRT1, and MEF2, which provide neuroprotective protection against damage triggered by neuroinflammation. Moreover, we study the feasibility of accommodating drug repositioning as a therapeutic approach for treating neuroinflammatory disorders. This suggests the use of existing medications for novel utilization in the treatment of NDDs. Furthermore, the study intends to reveal novel biomarkers of neuroinflammation that contribute fundamental observation for the initial detection and diagnosis of these disorders. This study aims to strengthen therapy interference and augment patient outcomes by combining ongoing data and evaluating novel therapeutic and diagnostic approaches. The goal is to devote the growth of an effective strategy to reducing the impact of neuroinflammation on neuronal protection in NDDs.
Collapse
Affiliation(s)
- Shefali Kardam
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly DCE), Delhi 110042, India
| | - Rashmi K Ambasta
- Department of Biotechnology and Microbiology, SRM University, Sonepat, India; Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly DCE), Delhi 110042, India.
| |
Collapse
|
2
|
Tchekalarova J, Ivanova P, Krushovlieva D, Kortenska L, Angelova VT. Protective Effect of the Novel Melatonin Analogue Containing Donepezil Fragment on Memory Impairment via MT/ERK/CREB Signaling in the Hippocampus in a Rat Model of Pinealectomy and Subsequent Aβ 1-42 Infusion. Int J Mol Sci 2024; 25:1867. [PMID: 38339146 PMCID: PMC10855364 DOI: 10.3390/ijms25031867] [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: 01/18/2024] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
A reduction in melatonin function contributes to the acceleration of Alzheimer's disease (AD), and understanding the molecular processes of melatonin-related signaling is critical for intervention in AD progression. Recently, we synthesized a series of melatonin analogues with donepezil fragments and tested them in silico and in vitro. In this study, one of the most potent compounds, 3c, was evaluated in a rat model of pinealectomy (pin) followed by icvAβ1-42 infusion. Melatonin was used as the reference drug. Treatment with melatonin and 3c (10 mg/kg, i.p. for 14 days) had a beneficial effect on memory decline and the concomitant increase in hippocampal Aβ1-42 and pTAU in the pin+icvAβ1-42 rats. Melatonin supplementation facilitated non-amyloidogenic signaling via non-receptor (histone deacetylase sirtuin 1, SIRT1) and receptor-related signaling (MT/ERK/CREB). The hybrid 3c analogue up-regulated the MT1A and MT2B receptors, pERK and pCREB. Our results strongly support the hypothesis that melatonin-related analogues may become a promising drug candidate for Alzheimer's disease therapy.
Collapse
Affiliation(s)
- Jana Tchekalarova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (P.I.); (D.K.); (L.K.)
| | - Petya Ivanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (P.I.); (D.K.); (L.K.)
| | - Desislava Krushovlieva
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (P.I.); (D.K.); (L.K.)
| | - Lidia Kortenska
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (P.I.); (D.K.); (L.K.)
| | - Violina T. Angelova
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria;
| |
Collapse
|
3
|
Nabil M, Kassem DH, Ali AA, El-Mesallamy HO. Adipose tissue-derived mesenchymal stem cells ameliorate cognitive impairment in Alzheimer's disease rat model: Emerging role of SIRT1. Biofactors 2023; 49:1121-1142. [PMID: 37323056 DOI: 10.1002/biof.1982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Alzheimer's disease (AD) is a complex form of neurodegenerative dementia. Growing body of evidence supports the cardinal role of sirtuin1 (SIRT1) in neurodegeneration and AD development. Recently, adipose tissue-derived mesenchymal stem cells (Ad-MSCs) have made their mark for a wide array of regenerative medicine applications, including neurodegenerative disorders. Therefore, the present study aimed to investigate the therapeutic potential of Ad-MSCs in AD rat model, and to explore the possible implication of SIRT1. Ad-MSCs were isolated from rat epididymal fat pads and properly characterized. Aluminum chloride was used to induce AD in rats, and afterward, a group of AD-induced rats received a single dose of Ad-MSCs (2 × 106 cell, I.V per rat). One month after Ad-MSCs transplantation, behavioral tests were done, brain tissues were collected, then histopathological and biochemical assessments were performed. Amyloid beta and SIRT1 levels were determined by enzyme-linked immunosorbent assay. Whereas expression levels of neprilysin, BCL2 associated X protein, B-cell lymphoma-2, interleukin-1β, interleukin-6, and nerve growth factor in hippocampus and frontal cortex brain tissues were assessed using reverse transcriptase quantitative polymerase chain reaction. Our data demonstrated that transplantation of Ad-MSCs alleviated cognitive impairment in AD rats. Additionally, they exhibited anti-amyloidogenic, antiapoptotic, anti-inflammatory, as well as neurogenic effects. Furthermore, Ad-MSCs were found to possibly mediate their therapeutic effects, at least partially, via modulating both central and systemic SIRT1 levels. Hence, the current study portrays Ad-MSCs as an effective therapeutic approach for AD management and opens the door for future investigations to further elucidate the role of SIRT1 and its interrelated molecular mediators in AD.
Collapse
Affiliation(s)
- Mohamed Nabil
- Department of Biochemistry, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Dina H Kassem
- Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Azza A Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Hala O El-Mesallamy
- Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Faculty of Pharmacy, Sinai University, Sinai, Egypt
| |
Collapse
|
4
|
Apiraksattayakul S, Pingaew R, Leechaisit R, Prachayasittikul V, Ruankham W, Songtawee N, Tantimongcolwat T, Ruchirawat S, Prachayasittikul V, Prachayasittikul S, Phopin K. Aminochalcones Attenuate Neuronal Cell Death under Oxidative Damage via Sirtuin 1 Activity. ACS OMEGA 2023; 8:33367-33379. [PMID: 37744807 PMCID: PMC10515382 DOI: 10.1021/acsomega.3c03047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/17/2023] [Indexed: 09/26/2023]
Abstract
Encouraged by the lack of effective treatments and the dramatic growth in the global prevalence of neurodegenerative diseases along with various pharmacological properties of chalcone pharmacophores, this study focused on the development of aminochalcone-based compounds, organic molecules characterized by a chalcone backbone (consisting of two aromatic rings connected by a three-carbon α,β-unsaturated carbonyl system) with an amino group attached to one of the aromatic rings, as potential neuroprotective agents. Thus, the aminochalcone-based compounds in this study were designed by bearing a -OCH3 moiety at different positions on the ring and synthesized by the Claisen-Schmidt condensation. The compounds exhibited strong neuroprotective effects against hydrogen peroxide-induced neuronal death in the human neuroblastoma (SH-SY5Y) cell line (i.e., by improving cell survival, reducing reactive oxygen species production, maintaining mitochondrial function, and preventing cell membrane damage). The aminochalcone-based compounds showed mild toxicity toward a normal embryonic lung cell line (MRC-5) and a human neuroblastoma cell line, and were predicted to have preferable pharmacokinetic profiles with potential for oral administration. Molecular docking simulation indicated that the studied aminochalcones may act as competitive activators of the well-known protective protein, SIRT1, and provided beneficial knowledge regarding the essential key chemical moieties and interacting amino acid residues. Collectively, this work provides a series of four promising candidate agents that could be developed for neuroprotection.
Collapse
Affiliation(s)
- Setthawut Apiraksattayakul
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Ratchanok Pingaew
- Department
of Chemistry, Faculty of Science, Srinakharinwirot
University, Bangkok 10110, Thailand
| | - Ronnakorn Leechaisit
- Department
of Chemistry, Faculty of Science, Srinakharinwirot
University, Bangkok 10110, Thailand
| | - Veda Prachayasittikul
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Waralee Ruankham
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Napat Songtawee
- Department
of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Tanawut Tantimongcolwat
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Somsak Ruchirawat
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, and Program
in Chemical Science, Chulabhorn Graduate
Institute, Bangkok 10210, Thailand
- Center of
Excellence on Environmental Health and Toxicology (EHT), Commission
on Higher Education, Ministry of Education, Bangkok 10400, Thailand
| | - Virapong Prachayasittikul
- Department
of Clinical Microbiology and Applied Technology, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Supaluk Prachayasittikul
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| | - Kamonrat Phopin
- Center
for Research Innovation and Biomedical Informatics, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
- Department
of Clinical Microbiology and Applied Technology, Faculty of Medical
Technology, Mahidol University, Bangkok 10700, Thailand
| |
Collapse
|
5
|
Hur Y, Huynh J, Leong E, Dosanjh R, Charvat AF, Vu MH, Alam Z, Lee YT, Cabreros CC, Carroll EC, Hura GL, Wang N. The differing effects of a dual acting regulator on SIRT1. Front Mol Biosci 2023; 10:1260489. [PMID: 37711385 PMCID: PMC10499324 DOI: 10.3389/fmolb.2023.1260489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/17/2023] [Indexed: 09/16/2023] Open
Abstract
SIRT1 is an NAD+-dependent protein deacetylase that has been shown to play a significant role in many biological pathways, such as insulin secretion, tumor formation, lipid metabolism, and neurodegeneration. There is great interest in understanding the regulation of SIRT1 to better understand SIRT1-related diseases and to better design therapeutic approaches that target SIRT1. There are many known protein and small molecule activators and inhibitors of SIRT1. One well-studied SIRT1 regulator, resveratrol, has historically been regarded as a SIRT1 activator, however, recent studies have shown that it can also act as an inhibitor depending on the identity of the peptide substrate. The inhibitory nature of resveratrol has yet to be studied in detail. Understanding the mechanism behind this dual behavior is crucial for assessing the potential side effects of STAC-based therapeutics. Here, we investigate the detailed mechanism of substrate-dependent SIRT1 regulation by resveratrol. We demonstrate that resveratrol alters the substrate recognition of SIRT1 by affecting the K M values without significantly impacting the catalytic rate (k cat). Furthermore, resveratrol destabilizes SIRT1 and extends its conformation, but the conformational changes differ between the activation and inhibition scenarios. We propose that resveratrol renders SIRT1 more flexible in the activation scenario, leading to increased activity, while in the inhibition scenario, it unravels the SIRT1 structure, compromising substrate recognition. Our findings highlight the importance of substrate identity in resveratrol-mediated SIRT1 regulation and provide insights into the allosteric control of SIRT1. This knowledge can guide the development of targeted therapeutics for diseases associated with dysregulated SIRT1 activity.
Collapse
Affiliation(s)
- Yujin Hur
- Department of Chemistry, San José State University, San José, CA, United States
| | - Johnson Huynh
- Department of Chemistry, San José State University, San José, CA, United States
| | - Emily Leong
- Department of Chemistry, San José State University, San José, CA, United States
| | - Reena Dosanjh
- Department of Chemistry, San José State University, San José, CA, United States
| | - Annemarie F. Charvat
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, United States
| | - My H. Vu
- Department of Chemistry, San José State University, San José, CA, United States
| | - Zain Alam
- Department of Chemistry, San José State University, San José, CA, United States
| | - Yue Tong Lee
- Department of Chemistry, San José State University, San José, CA, United States
| | | | - Emma C. Carroll
- Department of Chemistry, San José State University, San José, CA, United States
| | - Greg L. Hura
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Ningkun Wang
- Department of Chemistry, San José State University, San José, CA, United States
| |
Collapse
|
6
|
Therapeutic potential of natural molecules against Alzheimer's disease via SIRT1 modulation. Biomed Pharmacother 2023; 161:114474. [PMID: 36878051 DOI: 10.1016/j.biopha.2023.114474] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease mainly characterized by progressive cognitive dysfunction and memory impairment. Recent studies have shown that regulating silent information regulator 1 (SIRT1) expression has a significant neuroprotective effect, and SIRT1 may become a new therapeutic target for AD. Natural molecules are an important source of drug development for use in AD therapy and may regulate a wide range of biological events by regulating SIRT1 as well as other SIRT1-mediated signaling pathways. This review aims to summarize the correlation between SIRT1 and AD and to identify in vivo and in vitro studies investigating the anti-AD properties of natural molecules as modulators of SIRT1 and SIRT1-mediated signaling pathways. A literature search was conducted for studies published between January 2000 and October 2022 using various literature databases, including Web of Science, PubMed, Google Scholar, Science Direct, and EMBASE. Natural molecules, such as resveratrol, quercetin, icariin, bisdemethoxycurcumin, dihydromyricetin, salidroside, patchouli, sesamin, rhein, ligustilide, tetramethoxyflavanone, 1-theanine, schisandrin, curcumin, betaine, pterostilbene, ampelopsin, schisanhenol, and eriodictyol, have the potential to modulate SIRT1 and SIRT1 signaling pathways, thereby combating AD. The natural molecules modulating SIRT1 discussed in this review provide a potentially novel multi-mechanistic therapeutic strategy for AD. However, future clinical trials need to be conducted to further investigate their beneficial properties and to determine the safety and efficacy of SIRT1 natural activators against AD.
Collapse
|
7
|
Batiha GES, Al-kuraishy HM, Al-Gareeb AI, Elekhnawy E. SIRT1 pathway in Parkinson's disease: a faraway snapshot but so close. Inflammopharmacology 2023; 31:37-56. [PMID: 36580159 PMCID: PMC9957916 DOI: 10.1007/s10787-022-01125-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 12/19/2022] [Indexed: 12/30/2022]
Abstract
Silent information regulator (SIRT) has distinctive enzymatic activities and physiological functions to control cell-cycle progression, gene expression, and DNA stability by targeting histone and non-histone proteins. SIRT1 enhances synaptic formation and synaptic activity, and therefore, can reduce the progression of various degenerative brain diseases including Parkinson's disease (PD). SIRT1 activity is decreased by aging with a subsequent increased risk for the development of degenerative brain diseases. Inhibition of SIRT1 promotes inflammatory reactions since SIRT1 inhibits transcription of nuclear factor kappa B (NF-κB) which also inhibits SIRT1 activation via activation of microRNA and miR-34a which reduce NAD synthesis. SIRT1 is highly expressed in microglia as well as neurons, and has antioxidant and anti-inflammatory effects. Therefore, this review aimed to find the possible role of SIRT1 in PD neuropathology. SIRT1 has neuroprotective effects; therefore, downregulation of SIRT1 during aging promotes p53 expression and may increase the vulnerability of neuronal cell deaths. PD neuropathology is linked with the sequence of inflammatory changes and the release of pro-inflammatory cytokines due to the activation of inflammatory signaling pathways. In addition, oxidative stress, inflammatory disorders, mitochondrial dysfunction, and apoptosis contribute mutually to PD neuropathology. Thus, SIRT1 and SIRT1 activators play a crucial role in the mitigation of PD neuropathology through the amelioration of oxidative stress, inflammatory disorders, mitochondrial dysfunction, apoptosis, and inflammatory signaling pathways.
Collapse
Affiliation(s)
- Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511 AlBeheira Egypt
| | - Hayder M. Al-kuraishy
- Department of Pharmacology, Toxicology and Medicine, College of Medicine, Al-Mustansiriyah University, Baghdad, 14132 Iraq
| | - Ali I. Al-Gareeb
- Department of Pharmacology, Toxicology and Medicine, College of Medicine, Al-Mustansiriyah University, Baghdad, 14132 Iraq
| | - Engy Elekhnawy
- Pharmaceutical Microbiology Department, Faculty of Pharmacy, Tanta University, Tanta, 31527 Egypt
| |
Collapse
|
8
|
Zhai Z, Xie D, Qin T, Zhong Y, Xu Y, Sun T. Effect and Mechanism of Exogenous Melatonin on Cognitive Deficits in Animal Models of Alzheimer's Disease: A Systematic review and Meta-analysis. Neuroscience 2022; 505:91-110. [PMID: 36116555 DOI: 10.1016/j.neuroscience.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 12/09/2022]
Abstract
Melatonin (MT) has been reported to control and prevent Alzheimer's disease (AD) in the clinic; however, the effect and mechanism of MT on AD have not been specifically described. Therefore, the main purpose of this meta-analysis was to explore the effect and mechanism of MT on AD models by studying behavioural indicators and pathological features. Seven databases were searched and 583 articles were retrieved. Finally, nine studies (13 analyses, 294 animals) were included according to pre-set criteria. Three authors independently judged the selected literature and the methodological quality. Meta-analysis showed that MT markedly ameliorated the learning ability by reducing the escape latency (EL), and the memory deficit was significantly corrected by increasing the dwell time in the target quadrant and crossings over the platform location in the Morris Water Maze (MWM). Among the pathological features, subgroup analysis found that MT may ease the symptoms of AD mainly by reducing the deposition of Aβ40 and Aβ42 in the cortex. In addition, MT exerted a superior effect on ameliorating the learning ability of senescence-related and metabolic AD models, and corrected the memory deficit of the toxin-induced AD model. The study was registered at PROSPERO (CRD42021226594).
Collapse
Affiliation(s)
- Zhenwei Zhai
- School of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Danni Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Tao Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Yanmei Zhong
- School of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Ying Xu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
| | - Tao Sun
- School of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| |
Collapse
|
9
|
Baltaci SB, Unal O, Gulbahce-Mutlu E, Gumus H, Pehlivanoglu S, Yardimci A, Mogulkoc R, Baltaci AK. The Role of Zinc Status on Spatial Memory, Hippocampal Synaptic Plasticity, and Insulin Signaling in icv-STZ-Induced Sporadic Alzheimer's-Like Disease in Rats. Biol Trace Elem Res 2022; 200:4068-4078. [PMID: 34727320 DOI: 10.1007/s12011-021-02999-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/26/2021] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease (AD), especially its sporadic form (sAD), is of multifactorial nature. Brain insulin resistance and disrupted zinc homeostasis are two key aspects of AD that remain to be elucidated. Here, we investigated the effects of dietary zinc deficiency and supplementation on memory, hippocampal synaptic plasticity, and insulin signaling in intracerebroventricular streptozotocin (icv-STZ)-induced sAD in rats. The memory performance was evaluated by Morris water maze. The expression of hippocampal protein and mRNA levels of targets related to synaptic plasticity and insulin pathway was assessed by Western blot and real-time quantitative PCR. We found memory deficits in icv-STZ rats, which were fully recovered by zinc supplementation. Western blot analysis revealed that icv-STZ treatment significantly reduced hippocampal PSD95 and p-GSK3β, and zinc supplementation restored the normal protein levels. mRNA levels of BDNF, PSD95, SIRT1, GLUT4, insulin receptor, and ZnT3 were found to be reduced by icv-STZ and reestablished by zinc supplementation. Our data suggest that zinc supplementation improves cognitive deficits and rescues the decline in key molecular targets of synaptic plasticity and insulin signaling in hippocampus caused by icv-STZ induced sAD in rats.
Collapse
Affiliation(s)
- Saltuk Bugra Baltaci
- Department of Physiology, Medical Faculty, Selçuk University, Konya, 42031, Turkey
| | - Omer Unal
- Department of Physiology, Medical Faculty, Selçuk University, Konya, 42031, Turkey
| | - Elif Gulbahce-Mutlu
- Department of Medical Biology, Medical Faculty, KTO Karatay University, Konya, Turkey
| | - Haluk Gumus
- Department of Neurology, Medical Faculty, Selçuk University, Konya, Turkey
| | - Suray Pehlivanoglu
- Department of Molecular Biology, Science Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Ahmet Yardimci
- Department of Physiology, Medical Faculty, Firat University, Elazig, Turkey
| | - Rasim Mogulkoc
- Department of Physiology, Medical Faculty, Selçuk University, Konya, 42031, Turkey
| | | |
Collapse
|
10
|
Apiraksattayakul S, Pingaew R, Prachayasittikul V, Ruankham W, Jongwachirachai P, Songtawee N, Suwanjang W, Tantimongcolwat T, Prachayasittikul S, Prachayasittikul V, Phopin K. Neuroprotective Properties of Bis-Sulfonamide Derivatives Against 6-OHDA-Induced Parkinson's Model via Sirtuin 1 Activity and in silico Pharmacokinetic Properties. Front Mol Neurosci 2022; 15:890838. [PMID: 35935335 PMCID: PMC9354714 DOI: 10.3389/fnmol.2022.890838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Parkinson's disease (PD) is considered one of the health problems in the aging society. Due to the limitations of currently available drugs in preventing disease progression, the discovery of novel neuroprotective agents has been challenged. Sulfonamide and its derivatives were reported for several biological activities. Herein, a series of 17 bis-sulfonamide derivatives were initially tested for their neuroprotective potential and cytotoxicity against the 6-hydroxydopamine (6-OHDA)-induced neuronal death in SH-SY5Y cells. Subsequently, six compounds (i.e., 2, 4, 11, 14, 15, and 17) were selected for investigations on underlying mechanisms. The data demonstrated that the pretreatment of selected compounds (5 μM) can significantly restore the level of cell viability, protect against mitochondrial membrane dysfunction, decrease the activity of lactate dehydrogenase (LDH), decrease the intracellular oxidative stress, and enhance the activity of NAD-dependent deacetylase sirtuin-1 (SIRT1). Molecular docking was also performed to support that these compounds could act as SIRT1 activators. In addition, in silico pharmacokinetic and toxicity profile prediction was also conducted for guiding the potential development. Thus, the six neuroprotective bis-sulfonamides were highlighted as potential agents to be further developed for PD management.
Collapse
Affiliation(s)
- Setthawut Apiraksattayakul
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Ratchanok Pingaew
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
- Ratchanok Pingaew
| | - Veda Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Waralee Ruankham
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Papitcha Jongwachirachai
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Napat Songtawee
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Wilasinee Suwanjang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Tanawut Tantimongcolwat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Kamonrat Phopin
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
- *Correspondence: Kamonrat Phopin
| |
Collapse
|
11
|
Dysregulated miRNAs in Progression and Pathogenesis of Alzheimer's Disease. Mol Neurobiol 2022; 59:6107-6124. [PMID: 35867206 DOI: 10.1007/s12035-022-02950-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 06/28/2022] [Indexed: 10/17/2022]
Abstract
Alzheimer's disease (AD) is a progressive degeneration of neurons due to the accumulation of amyloid-β peptide (Aβ) and hyper-phosphorylation of tau protein in the neuronal milieu leading to increased oxidative stress and apoptosis. Numerous factors contribute towards the progression of AD, including miRNA, which are 22-24 nucleotides long sequence which acts as critical regulators of cellular processes by binding to 3' UTR of mRNA, regulating its expression post-transcriptionally. This review aims to determine the miRNA with the most significant dysregulation in the brain and cerebrospinal fluid (CSF) of human patients. A systemized inclusion/exclusion criterion has been utilized based on selected keywords followed by screening of those articles to conclude a list of 8 highly dysregulated miRNAs based on the fold change of AD vs control patients, which could be used in clinical testing as these miRNAs play central role in the pathophysiology of AD. Furthermore, a network study of highly dysregulated miRNA estimated the association of these miRNA in the mediation of Aβ generation and aggregation, inhibition of autophagy, reduction of Aβ clearance, microglial and astrocytic activation, neuro-inflammation, tau hyper-phosphorylation, and synaptic loss.
Collapse
|
12
|
Huynh AT, Nguyen TTN, Villegas CA, Montemorso S, Strauss B, Pearson RA, Graham JG, Oribello J, Suresh R, Lustig B, Wang N. Prediction and confirmation of a switch-like region within the N-terminal domain of hSIRT1. Biochem Biophys Rep 2022; 30:101275. [PMID: 35592613 PMCID: PMC9112024 DOI: 10.1016/j.bbrep.2022.101275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 11/28/2022] Open
Abstract
Many proteins display conformational changes resulting from allosteric regulation. Often only a few residues are crucial in conveying these structural and functional allosteric changes. These regions that undergo a significant change in structure upon receiving an input signal, such as molecular recognition, are defined as switch-like regions. Identifying these key residues within switch-like regions can help elucidate the mechanism of allosteric regulation and provide guidance for synthetic regulation. In this study, we combine a novel computational workflow with biochemical methods to identify a switch-like region in the N-terminal domain of human SIRT1 (hSIRT1), a lysine deacetylase that plays important roles in regulating cellular pathways. Based on primary sequence, computational methods predicted a region between residues 186-193 in hSIRT1 to exhibit switch-like behavior. Mutations were then introduced in this region and the resulting mutants were tested for allosteric reactions to resveratrol, a known hSIRT1 allosteric regulator. After fine-tuning the mutations based on comparison of known secondary structures, we were able to pinpoint M193 as the residue essential for allosteric regulation, likely by communicating the allosteric signal. Mutation of this residue maintained enzyme activity but abolished allosteric regulation by resveratrol. Our findings suggest a method to predict switch-like regions in allosterically regulated enzymes based on the primary sequence. If further validated, this could be an efficient way to identify key residues in enzymes for therapeutic drug targeting and other applications.
Collapse
Affiliation(s)
- Angelina T. Huynh
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Thi-Tina N. Nguyen
- Department of Biological Sciences, San José State University, San José, California, 95192, USA
| | - Carina A. Villegas
- Department of Biological Sciences, San José State University, San José, California, 95192, USA
| | - Saira Montemorso
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Benjamin Strauss
- Department of Computer Science, San José State University, San José, California, 95192, USA
| | - Richard A. Pearson
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Jason G. Graham
- Department of Biomedical, Chemical, and Materials Engineering, San José State University, San José, California, 95192, USA
| | - Jonathan Oribello
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Rohit Suresh
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Brooke Lustig
- Department of Chemistry, San José State University, San José, California, 95192, USA
| | - Ningkun Wang
- Department of Chemistry, San José State University, San José, California, 95192, USA
| |
Collapse
|
13
|
Resveratrol and neuroprotection: an insight into prospective therapeutic approaches against Alzheimer's disease from bench to bedside. Mol Neurobiol 2022; 59:4384-4404. [PMID: 35545730 DOI: 10.1007/s12035-022-02859-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/28/2022] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia and cognitive impairment; yet, there is currently no treatment. A buildup of Aβ, tau protein phosphorylation, oxidative stress, and inflammation in AD is pathogenic. The accumulation of amyloid-beta (Aβ) peptides in these neurocognitive areas is a significant characteristic of the disease. Therefore, inhibiting Aβ peptide aggregation has been proposed as the critical therapeutic approach for AD treatment. Resveratrol has been demonstrated in multiple studies to have a neuroprotective, anti-inflammatory, and antioxidant characteristic and the ability to minimize Aβ peptides aggregation and toxicity in the hippocampus of Alzheimer's patients, stimulating neurogenesis and inhibiting hippocampal degeneration. Furthermore, resveratrol's antioxidant effect promotes neuronal development by activating the silent information regulator-1 (SIRT1), which can protect against the detrimental effects of oxidative stress. Resveratrol-induced SIRT1 activation is becoming more crucial in developing novel therapeutic options for AD and other diseases that have neurodegenerative characteristics. This review highlighted a better knowledge of resveratrol's mechanism of action and its promising therapeutic efficacy in treating AD. We also highlighted the therapeutic potential of resveratrol as an AD therapeutic agent, which is effective against neurodegenerative disorders.
Collapse
|
14
|
Su T, Wang Z, Zhang Z, Hou Z, Han X, Yang F, Liu H. Resveratrol regulates Hsp60 in HEK 293T cells during activation of SIRT1 revealed by nascent protein labeling strategy. Food Nutr Res 2022; 66:8224. [PMID: 35517847 PMCID: PMC9034730 DOI: 10.29219/fnr.v66.8224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/30/2021] [Accepted: 02/23/2022] [Indexed: 11/20/2022] Open
Abstract
Background Resveratrol, a well-known natural compound and nutrient, activates the deacetylation ability of SIRT1, demonstrating p53-dependent apoptosis functions in many diseases. However, the nascent proteomic fluctuation caused by resveratrol is still unclear. Objective In this study, we investigated the effect of resveratrol on the nascent proteome and transcriptome initiated by SIRT1 activation, and we explored the mechanism of resveratrol in HEK 293T cells. Methods Bioorthogonal noncanonical amino acid tagging (BONCAT) is a method used to metabolically label nascent proteins. In this strategy, L-azidohomoalanine (AHA) was used to replace methionine (Met) under different conditions. Taking advantage of the click reaction between AHA and terminal alkyne- and disulfide-functionalized agarose resin (TAD resin), we were able to efficiently separate stimulation responsive proteins from the pre-existing proteome. Resveratrol responsive proteins were identified by Liquid Chromatograph-Mass Spectrometer/Mass Spectrometer (LC-MS/MS). Furthermore, changes in mRNA levels were analyzed by transcriptome sequencing. Results Integrational analysis revealed a resveratrol response in HEK 293T cells and showed that Hsp60 was downregulated at both the nascent protein and mRNA levels. Knockdown of SIRT1 and Hsp60 provides evidence that resveratrol downregulated Hsp60 through SIRT1 and that Hsp60 decreased p53 through the Akt pathway. Conclusions This study revealed dynamic changes in the nascent proteome and transcriptome in response to resveratrol in HEK 293T cells and demonstrated that resveratrol downregulates Hsp60 by activating SIRT1, which may be a possible mechanism by which resveratrol prevents p53-dependent apoptosis by regulating Hsp60.
Collapse
Affiliation(s)
- Tian Su
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhen Wang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhengyi Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhanwu Hou
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xiao Han
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fei Yang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Huadong Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| |
Collapse
|
15
|
Gupta R, Ambasta RK, Kumar P. Multifaced role of protein deacetylase sirtuins in neurodegenerative disease. Neurosci Biobehav Rev 2021; 132:976-997. [PMID: 34742724 DOI: 10.1016/j.neubiorev.2021.10.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/28/2021] [Accepted: 10/28/2021] [Indexed: 01/07/2023]
Abstract
Sirtuins, a class III histone/protein deacetylase, is a central regulator of metabolic function and cellular stress response. This plays a pivotal role in the pathogenesis and progression of diseases such as cancer, neurodegeneration, metabolic syndromes, and cardiovascular disease. Sirtuins regulate biological and cellular processes, for instance, mitochondrial biogenesis, lipid and fatty acid oxidation, oxidative stress, gene transcriptional activity, apoptosis, inflammatory response, DNA repair mechanism, and autophagic cell degradation, which are known components for the progression of the neurodegenerative diseases (NDDs). Emerging evidence suggests that sirtuins are the useful molecular targets against NDDs like, Alzheimer's Disease (AD), Parkinson's Disease (PD), Huntington's Disease (HD), and Amyotrophic Lateral Sclerosis (ALS). However, the exact mechanism of neuroprotection mediated through sirtuins remains unsettled. The manipulation of sirtuins activity with its modulators, calorie restriction (CR), and micro RNAs (miR) is a novel therapeutic approach for the treatment of NDDs. Herein, we reviewed the current putative therapeutic role of sirtuins in regulating synaptic plasticity and cognitive functions, which are mediated through the different molecular phenomenon to prevent neurodegeneration. We also explained the implications of sirtuin modulators, and miR based therapies for the treatment of life-threatening NDDs.
Collapse
Affiliation(s)
- Rohan Gupta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly DCE), Delhi 110042, India
| | - Rashmi K Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly DCE), Delhi 110042, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly DCE), Delhi 110042, India.
| |
Collapse
|
16
|
Kovács Z, Brunner B, Ari C. Beneficial Effects of Exogenous Ketogenic Supplements on Aging Processes and Age-Related Neurodegenerative Diseases. Nutrients 2021; 13:nu13072197. [PMID: 34206738 PMCID: PMC8308443 DOI: 10.3390/nu13072197] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/20/2022] Open
Abstract
Life expectancy of humans has increased continuously up to the present days, but their health status (healthspan) was not enhanced by similar extent. To decrease enormous medical, economical and psychological burden that arise from this discrepancy, improvement of healthspan is needed that leads to delaying both aging processes and development of age-related diseases, thereby extending lifespan. Thus, development of new therapeutic tools to alleviate aging processes and related diseases and to increase life expectancy is a topic of increasing interest. It is widely accepted that ketosis (increased blood ketone body levels, e.g., β-hydroxybutyrate) can generate neuroprotective effects. Ketosis-evoked neuroprotective effects may lead to improvement in health status and delay both aging and the development of related diseases through improving mitochondrial function, antioxidant and anti-inflammatory effects, histone and non-histone acetylation, β-hydroxybutyrylation of histones, modulation of neurotransmitter systems and RNA functions. Administration of exogenous ketogenic supplements was proven to be an effective method to induce and maintain a healthy state of nutritional ketosis. Consequently, exogenous ketogenic supplements, such as ketone salts and ketone esters, may mitigate aging processes, delay the onset of age-associated diseases and extend lifespan through ketosis. The aim of this review is to summarize the main hallmarks of aging processes and certain signaling pathways in association with (putative) beneficial influences of exogenous ketogenic supplements-evoked ketosis on lifespan, aging processes, the most common age-related neurodegenerative diseases (Alzheimer’s disease, Parkinson’s disease and amyotrophic lateral sclerosis), as well as impaired learning and memory functions.
Collapse
Affiliation(s)
- Zsolt Kovács
- Department of Biology, Savaria University Centre, ELTE Eötvös Loránd University, Károlyi Gáspár tér 4., 9700 Szombathely, Hungary; (Z.K.); (B.B.)
| | - Brigitta Brunner
- Department of Biology, Savaria University Centre, ELTE Eötvös Loránd University, Károlyi Gáspár tér 4., 9700 Szombathely, Hungary; (Z.K.); (B.B.)
- Faculty of Sciences, Institute of Biology, University of Pécs, Ifjúság Str. 6, 7624 Pécs, Hungary
| | - Csilla Ari
- Behavioral Neuroscience Research Laboratory, Department of Psychology, University of South Florida, 4202 E. Fowler Ave, PCD 3127, Tampa, FL 33620, USA
- Ketone Technologies LLC, 2780 E. Fowler Ave. #226, Tampa, FL 33612, USA
- Correspondence: ; Tel.: +1-(813)-2409925
| |
Collapse
|
17
|
Melatonin regulates Aβ production/clearance balance and Aβ neurotoxicity: A potential therapeutic molecule for Alzheimer's disease. Biomed Pharmacother 2020; 132:110887. [PMID: 33254429 DOI: 10.1016/j.biopha.2020.110887] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disease with multiple predisposing factors and complicated pathogenesis. Aβ peptide is one of the most important pathogenic factors in the etiology of AD. Accumulating evidence indicates that the imbalance of Aβ production and Aβ clearance in the brain of AD patients leads to Aβ deposition and neurotoxic Aβ oligomer formation. Melatonin shows a potent neuroprotective effect and can prevent or slow down the progression of AD, supporting the view that melatonin is a potential therapeutic molecule for AD. Melatonin modulates the regulatory network of secretase expression and affects the function of secretase, thereby inhibiting amyloidogenic APP processing and Aβ production. Additionally, melatonin ameliorates Aβ-induced neurotoxicity and probably promotes Aβ clearance through glymphatic-lymphatic drainage, BBB transportation and degradation pathways. In this review, we summarize and discuss the role of melatonin against Aβ-dependent AD pathogenesis. We explore the potential cellular and molecular mechanisms of melatonin on Aβ production and assembly, Aβ clearance, Aβ neurotoxicity and circadian cycle disruption. We summarize multiple clinical trials of melatonin treatment in AD patients, showing that melatonin has a promising effect on improving sleep quality and cognitive function. This review aims to stimulate further research on melatonin as a potential therapeutic agent for AD.
Collapse
|
18
|
Dong YT, Cao K, Xiang J, Shan L, Guan ZZ. Silent Mating-Type Information Regulation 2 Homolog 1 Attenuates the Neurotoxicity Associated with Alzheimer Disease via a Mechanism Which May Involve Regulation of Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-α. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1545-1564. [PMID: 32289286 DOI: 10.1016/j.ajpath.2020.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 03/14/2020] [Accepted: 03/20/2020] [Indexed: 12/29/2022]
Abstract
To investigate the neuroprotective role of silent mating-type information regulation 2 homolog 1 (SIRT1) in Alzheimer disease (AD), brain tissues from patients with AD and APP/PS1 mice as well as primary rat neurons exposed to oligomers of amyloid-β peptide were examined. The animals were treated with resveratrol (RSV) or suramin for 2 months. Cell cultures were treated with RSV, suramin, and the peroxisome proliferator-activated receptor gamma coactivator 1-α (PGC-1α) stimulator ZLN005. Cells were transiently transfected with PGC-1α silencing RNA. The level of SIRT1 in brain tissues from patients with AD and APP/PS1 mice, including nuclear and mitochondrial proteins, as well as in primary neurons exposed to oligomers of amyloid-β peptide, was decreased. Overexpression of APP/PS1 impaired learning and memory of mice; produced more senile plaques, disrupted membranes, and resulted in broken or absent cristae of mitochondria in the brain; decreased levels of A disintegrin and metallopeptidase domain 10, beta-secretase 2, 8-oxoguanine DNA glycosylase-1, PGC-1α, and NAD+; and increased levels of beta-secretase 1 and apoptosis. Interestingly, these changes were attenuated significantly by RSV treatment but enhanced by suramin administration. By activating PGC-1α but inhibiting SIRT1, apoptotic cell death was significantly decreased; however, by activating SIRT1 but inhibiting PGC-1α with small interfering PGC-1α, these levels remained unchanged. These findings indicate that SIRT1 may protect against AD-associated neurotoxicity, which might involve PGC-1α regulation.
Collapse
Affiliation(s)
- Yang-Ting Dong
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, PR China
| | - Kun Cao
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, PR China
| | - Jie Xiang
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, PR China
| | - Ling Shan
- the Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Zhi-Zhong Guan
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, PR China; Provincial Key Laboratory of Medical Molecular Biology, Guiyang, PR China.
| |
Collapse
|
19
|
Dong YT, Cao K, Tan LC, Wang XL, Qi XL, Xiao Y, Guan ZZ. Stimulation of SIRT1 Attenuates the Level of Oxidative Stress in the Brains of APP/PS1 Double Transgenic Mice and in Primary Neurons Exposed to Oligomers of the Amyloid-β Peptide. J Alzheimers Dis 2019; 63:283-301. [PMID: 29614660 DOI: 10.3233/jad-171020] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In the study, we examined whether the silent information regulator 1 (SIRT1) can attenuate oxidative stress in the brains of mice carrying the APP/PS1 double mutation and/or in primary neonatal rat neurons exposed to oligomers of amyloid-β peptide (AβOs). Starting at 4 or 8 months of age, the transgenic mice were treated with resveratrol (RSV, a stimulator of SIRT1) or suramin (an inhibitor) (each 20 mg/kg BW/day) for two months. The primary neurons were exposed to AβOs (0.5 μM) for 48 h and thereafter RSV (20 μM) or suramin (300 mg/ml) for 24 h. Cell viability was assessed by the CCK-8 assay; SIRT1 protein and mRNA determined by western blotting and real-time PCR, respectively; senile plaques examined immunohistochemically; ROS monitored by flow cytometry; and the contents of OH-, H2O2, O2·-, and MDA, and the activities of SOD and GSH-Px measured by standard biochemical procedures. In comparison to wild-type mice or untreated primary neurons, the expression of SIRT1 was significantly lower in the brains of APP/PS1 mice or neurons exposed to AβOs. In these same systems, increased numbers of senile plaques and a high level of oxidative stress were apparent. Interestingly, these two latter changes were attenuated by treatment with RSV, but enhanced by suramin. These findings indicate that SIRT1 may be neuroprotective.
Collapse
Affiliation(s)
- Yang-Ting Dong
- Department of Pathology at the Affiliated Hospital of Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China
| | - Kun Cao
- Department of Pathology at the Affiliated Hospital of Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China
| | - Long-Chun Tan
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Medical Molecular Biology, Guiyang, P. R. China
| | - Xiao-Ling Wang
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Medical Molecular Biology, Guiyang, P. R. China
| | - Xiao-Lan Qi
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Medical Molecular Biology, Guiyang, P. R. China
| | - Yan Xiao
- Department of Pathology at the Affiliated Hospital of Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China
| | - Zhi-Zhong Guan
- Department of Pathology at the Affiliated Hospital of Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, P. R. China.,Key Laboratory of Medical Molecular Biology, Guiyang, P. R. China
| |
Collapse
|
20
|
Melatonin in Alzheimer’s Disease: A Latent Endogenous Regulator of Neurogenesis to Mitigate Alzheimer’s Neuropathology. Mol Neurobiol 2019; 56:8255-8276. [DOI: 10.1007/s12035-019-01660-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 12/15/2022]
|
21
|
Mitochondrial Role in Stemness and Differentiation of Hematopoietic Stem Cells. Stem Cells Int 2019; 2019:4067162. [PMID: 30881461 PMCID: PMC6381553 DOI: 10.1155/2019/4067162] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/24/2018] [Indexed: 01/07/2023] Open
Abstract
Quiescent and self-renewing hematopoietic stem cells (HSCs) rely on glycolysis rather than on mitochondrial oxidative phosphorylation (OxPHOS) for energy production. HSC reliance on glycolysis is considered an adaptation to the hypoxic environment of the bone marrow (BM) and reflects the low energetic demands of HSCs. Metabolic rewiring from glycolysis to mitochondrial-based energy generation accompanies HSC differentiation and lineage commitment. Recent evidence, however, highlights that alterations in mitochondrial metabolism and activity are not simply passive consequences but active drivers of HSC fate decisions. Modulation of mitochondrial activity and metabolism is therefore critical for maintaining the self-renewal potential of primitive HSCs and might be beneficial for ex vivo expansion of transplantable HSCs. In this review, we emphasize recent advances in the emerging role of mitochondria in hematopoiesis, cellular reprograming, and HSC fate decisions.
Collapse
|
22
|
Morsy A, Trippier PC. Current and Emerging Pharmacological Targets for the Treatment of Alzheimer's Disease. J Alzheimers Dis 2019; 72:S145-S176. [PMID: 31594236 DOI: 10.3233/jad-190744] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
No cure or disease-modifying therapy for Alzheimer's disease (AD) has yet been realized. However, a multitude of pharmacological targets have been identified for possible engagement to enable drug discovery efforts for AD. Herein, we review these targets comprised around three main therapeutic strategies. First is an approach that targets the main pathological hallmarks of AD: amyloid-β (Aβ) oligomers and hyperphosphorylated tau tangles which primarily focuses on reducing formation and aggregation, and/or inducing their clearance. Second is a strategy that modulates neurotransmitter signaling. Comprising this strategy are the cholinesterase inhibitors and N-methyl-D-aspartate receptor blockade treatments that are clinically approved for the symptomatic treatment of AD. Additional targets that aim to stabilize neuron signaling through modulation of neurotransmitters and their receptors are also discussed. Finally, the third approach comprises a collection of 'sensitive targets' that indirectly influence Aβ or tau accumulation. These targets are proteins that upon Aβ accumulation in the brain or direct Aβ-target interaction, a modification in the target's function is induced. The process occurs early in disease progression, ultimately causing neuronal dysfunction. This strategy aims to restore normal target function to alleviate Aβ-induced toxicity in neurons. Overall, we generally limit our analysis to targets that have emerged in the last decade and targets that have been validated using small molecules in in vitro and/or in vivo models. This review is not an exhaustive list of all possible targets for AD but serves to highlight the most promising and critical targets suitable for small molecule drug intervention.
Collapse
Affiliation(s)
- Ahmed Morsy
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Paul C Trippier
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
- UNMC Center for Drug Discovery, University of Nebraska Medical Center, Omaha, NE, USA
| |
Collapse
|
23
|
A small molecule ApoE4-targeted therapeutic candidate that normalizes sirtuin 1 levels and improves cognition in an Alzheimer's disease mouse model. Sci Rep 2018; 8:17574. [PMID: 30514854 PMCID: PMC6279743 DOI: 10.1038/s41598-018-35687-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 11/09/2018] [Indexed: 12/19/2022] Open
Abstract
We describe here the results from the testing of a small molecule first-in-class apolipoprotein E4 (ApoE4)-targeted sirtuin1 (SirT1) enhancer, A03, that increases the levels of the neuroprotective enzyme SirT1 while not affecting levels of neurotoxic sirtuin 2 (SirT2) in vitro in ApoE4-transfected cells. A03 was identified by high-throughput screening (HTS) and found to be orally bioavailable and brain penetrant. In vivo, A03 treatment increased SirT1 levels in the hippocampus of 5XFAD-ApoE4 (E4FAD) Alzheimer’s disease (AD) model mice and elicited cognitive improvement while inducing no observed toxicity. We were able to resolve the enantiomers of A03 and show using in vitro models that the L-enantiomer was more potent than the corresponding D-enantiomer in increasing SirT1 levels. ApoE4 expression has been shown to decrease the level of the NAD-dependent deacetylase and major longevity determinant SirT1 in brain tissue and serum of AD patients as compared to normal controls. A deficiency in SirT1 level has been recently implicated in increased tau acetylation, a dominant post-translational modification and key pathological event in AD and tauopathies. Therefore, as a novel approach to therapeutic development for AD, we targeted identification of compounds that enhance and normalize brain SirT1 levels.
Collapse
|
24
|
Neuroprotective Mechanisms of Resveratrol in Alzheimer's Disease: Role of SIRT1. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8152373. [PMID: 30510627 PMCID: PMC6232815 DOI: 10.1155/2018/8152373] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/21/2018] [Accepted: 08/15/2018] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a progressive and neurodegenerative disorder of the cortex and hippocampus, which eventually leads to cognitive impairment. Although the etiology of AD remains unclear, the presence of β-amyloid (Aβ) peptides in these learning and memory regions is a hallmark of AD. Therefore, the inhibition of Aβ peptide aggregation has been considered the primary therapeutic strategy for AD treatment. Many studies have shown that resveratrol has antioxidant, anti-inflammatory, and neuroprotective properties and can decrease the toxicity and aggregation of Aβ peptides in the hippocampus of AD patients, promote neurogenesis, and prevent hippocampal damage. In addition, the antioxidant activity of resveratrol plays an important role in neuronal differentiation through the activation of silent information regulator-1 (SIRT1). SIRT1 plays a vital role in the growth and differentiation of neurons and prevents the apoptotic death of these neurons by deacetylating and repressing p53 activity; however, the exact mechanisms remain unclear. Resveratrol also has anti-inflammatory effects as it suppresses M1 microglia activation, which is involved in the initiation of neurodegeneration, and promotes Th2 responses by increasing anti-inflammatory cytokines and SIRT1 expression. This review will focus on the antioxidant and anti-inflammatory neuroprotective effects of resveratrol, specifically on its role in SIRT1 and the association with AD pathophysiology.
Collapse
|
25
|
Rizzi L, Roriz-Cruz M. Sirtuin 1 and Alzheimer's disease: An up-to-date review. Neuropeptides 2018; 71:54-60. [PMID: 30007474 DOI: 10.1016/j.npep.2018.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/29/2018] [Accepted: 07/08/2018] [Indexed: 10/28/2022]
Abstract
Sirtuins are NAD+-dependent enzymes that regulate a large number of cellular pathways and are related to aging and age-associated diseases. In recent years, the role of sirtuins in Alzheimer's disease (AD) has become increasingly apparent. Growing evidence demonstrates that sirtuin 1 (SIRT1) regulates many processes that go amiss in AD, such as: APP processing, neuroinflammation, neurodegeneration, and mitochondrial dysfunction. Here we review how SIRT1 affects AD and cognition, the main mechanisms in which SIRT1 is related to AD pathology, and its importance for the prevention and possible diagnosis of AD.
Collapse
Affiliation(s)
- Liara Rizzi
- Division of Geriatric Neurology, Neurology Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-903, Brazil; School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 90035-903, Brazil.
| | - Matheus Roriz-Cruz
- Division of Geriatric Neurology, Neurology Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-903, Brazil; School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 90035-903, Brazil
| |
Collapse
|
26
|
Hadar A, Milanesi E, Walczak M, Puzianowska-Kuźnicka M, Kuźnicki J, Squassina A, Niola P, Chillotti C, Attems J, Gozes I, Gurwitz D. SIRT1, miR-132 and miR-212 link human longevity to Alzheimer's Disease. Sci Rep 2018; 8:8465. [PMID: 29855513 PMCID: PMC5981646 DOI: 10.1038/s41598-018-26547-6] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 05/15/2018] [Indexed: 01/13/2023] Open
Abstract
Alzheimer's Disease (AD) is the most common cause of dementia in the elderly. Centenarians - reaching the age of >100 years while maintaining good cognitive skills - seemingly have unique biological features allowing healthy aging and protection from dementia. Here, we studied the expression of SIRT1 along with miR-132 and miR-212, two microRNAs known to regulate SIRT1, in lymphoblastoid cell lines (LCLs) from 45 healthy donors aged 21 to 105 years and 24 AD patients, and in postmortem olfactory bulb and hippocampus tissues from 14 AD patients and 20 age-matched non-demented individuals. We observed 4.0-fold (P = 0.001) lower expression of SIRT1, and correspondingly higher expression of miR-132 (1.7-fold; P = 0.014) and miR-212 (2.1-fold; P = 0.036), in LCLs from AD patients compared with age-matched healthy controls. Additionally, SIRT1 expression was 2.2-fold (P = 0.001) higher in centenarian LCLs compared with LCLs from individuals aged 56-82 years; while centenarian LCLs miR-132 and miR-212 indicated 7.6-fold and 4.1-fold lower expression, respectively. Correlations of SIRT1, miR-132 and miR-212 expression with cognitive scores were observed for AD patient-derived LCLs and postmortem AD olfactory bulb and hippocampus tissues, suggesting that higher SIRT1 expression, possibly mediated by lower miR-132 and miR-212, may protect aged individuals from dementia and is reflected in their peripheral tissues.
Collapse
Affiliation(s)
- A Hadar
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - E Milanesi
- Department of Cellular and Molecular Medicine, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - M Walczak
- Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Warsaw, Poland
| | - M Puzianowska-Kuźnicka
- Department of Human Epigenetics, Mossakowski Medical Research Centre, Warsaw, Poland
- Department of Geriatrics and Gerontology, Medical Centre of Postgraduate Education, Warsaw, Poland
| | - J Kuźnicki
- The International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - A Squassina
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - P Niola
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - C Chillotti
- Unit of Clinical Pharmacology, University Hospital of Cagliari, Cagliari, Italy
| | - J Attems
- Institute of Neuroscience and Newcastle University Institute of Ageing, Newcastle University, Newcastle upon Tyne, UK
| | - I Gozes
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel.
- Adams Super Center for Brain Studies, Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - D Gurwitz
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel.
- Adams Super Center for Brain Studies, Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| |
Collapse
|
27
|
Delgado-González JC, Florensa-Vila J, Mansilla-Legorburo F, Insausti R, Artacho-Pérula E. Magnetic Resonance Imaging and Anatomical Correlation of Human Temporal Lobe Landmarks, in 3D Euclidean Space: A Study of Control and Alzheimer's Disease Subjects. J Alzheimers Dis 2018; 57:461-473. [PMID: 28269774 DOI: 10.3233/jad-160944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND The medial temporal lobe (MTL), and in particular the hippocampal formation, is essential in the processing and consolidation of declarative memory. The 3D environment of the anatomical structures contained in the MTL is an important issue. OBJECTIVE Our aim was to explore the spatial relationship of the anatomical structures of the MTL and changes in aging and/or Alzheimer's disease (AD). METHODS MTL anatomical landmarks are identified and registered to create a 3D network. The brain network is quantitatively described as a plane, rostrocaudally-oriented, and presenting Euclidean/real distances. Correspondence between 1.5T RM, 3T RM, and histological sections were assessed to determine the most important recognizable changes in AD, based on statistical significance. RESULTS In both 1.5T and 3T RM images and histology, inter-rater reliability was high. Sex and hemisphere had no influence on network pattern. Minor changes were found in relation to aging. Distances from the temporal pole to the dentate gyrus showed the most significant differences when comparing control and AD groups. The best discriminative distance between control and AD cases was found in the temporal pole/dentate gyrus rostrocaudal length in histological sections. Moreover, more distances between landmarks were required to obtain 100% discrimination between control (divided into <65 years or >65 years) and AD cases. DISCUSSION Changes in the distance between MTL anatomical landmarks can successfully be detected by using measurements of 3D network patterns in control and AD cases.
Collapse
Affiliation(s)
- José-Carlos Delgado-González
- Human Neuroanatomy Laboratory and C.R.I.B., School of Medicine, University of Castilla-La Mancha, Albacete, Spain
| | - José Florensa-Vila
- Radiodiagnostic Service, Hospital Nacional de Parapléjicos (HNP), Toledo, Spain
| | - Francisco Mansilla-Legorburo
- Radiology Service, Magnetic Resonance Unit, Complejo Hospitalario Universitario de Albacete (CHUA), Albacete, Spain
| | - Ricardo Insausti
- Human Neuroanatomy Laboratory and C.R.I.B., School of Medicine, University of Castilla-La Mancha, Albacete, Spain
| | - Emilio Artacho-Pérula
- Human Neuroanatomy Laboratory and C.R.I.B., School of Medicine, University of Castilla-La Mancha, Albacete, Spain
| |
Collapse
|
28
|
Wong SY, Tang BL. SIRT1 as a therapeutic target for Alzheimer's disease. Rev Neurosci 2018; 27:813-825. [PMID: 27497424 DOI: 10.1515/revneuro-2016-0023] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/12/2016] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is the most prevalent cause of dementia in the aging population worldwide. SIRT1 deacetylation of histones and transcription factors impinge on multiple neuronal and non-neuronal targets, and modulates stress response, energy metabolism and cellular senescence/death pathways. Collectively, SIRT1 activity could potentially affect multiple aspects of hippocampal and cortical neuron function and survival, thus modifying disease onset and progression. In this review, the known and potential mechanisms of action of SIRT1 with regard to AD, and its potential as a therapeutic target, are discussed.
Collapse
|
29
|
Hadem IKH, Majaw T, Kharbuli B, Sharma R. Beneficial effects of dietary restriction in aging brain. J Chem Neuroanat 2017; 95:123-133. [PMID: 29031555 DOI: 10.1016/j.jchemneu.2017.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/14/2017] [Accepted: 10/10/2017] [Indexed: 12/20/2022]
Abstract
Aging is a multifactorial complex process that leads to the deterioration of biological functions wherein its underlying mechanism is not fully elucidated. It affects the organism at the molecular and cellular level that contributes to the deterioration of structural integrity of the organs. The central nervous system is the most vulnerable organ affected by aging and its effect is highly heterogeneous. Aging causes alteration in the structure, metabolism and physiology of the brain leading to impaired cognitive and motor-neural functions. Dietary restriction (DR), a robust mechanism that extends lifespan in various organisms, ameliorates brain aging by reducing oxidative stress, improving mitochondrial function, activating anti-inflammatory responses, promoting neurogenesis and increasing synaptic plasticity. It also protects and prevents age-related structural changes. DR alleviates many age-associated diseases including neurodegeneration and improves cognitive functions. DR inhibits/activates nutrient signaling cascades such as insulin/IGF-1, mTOR, AMPK and sirtuins. Because of its sensitivity to energy status and hormones, AMPK is considered as the global nutrient sensor. This review will present an elucidative potential role of dietary restriction in the prevention of phenotypic features during aging in brain and its diverse mechanisms.
Collapse
Affiliation(s)
| | - Teikur Majaw
- Department of Biochemistry, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Babiangshisha Kharbuli
- Department of Biochemistry, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Ramesh Sharma
- Department of Biochemistry, North-Eastern Hill University, Shillong 793022, Meghalaya, India.
| |
Collapse
|
30
|
Shukla M, Govitrapong P, Boontem P, Reiter RJ, Satayavivad J. Mechanisms of Melatonin in Alleviating Alzheimer's Disease. Curr Neuropharmacol 2017; 15:1010-1031. [PMID: 28294066 PMCID: PMC5652010 DOI: 10.2174/1570159x15666170313123454] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/10/2017] [Accepted: 03/09/2017] [Indexed: 02/07/2023] Open
Abstract
Alzheimer's disease (AD) is a chronic, progressive and prevalent neurodegenerative disease characterized by the loss of higher cognitive functions and an associated loss of memory. The thus far "incurable" stigma for AD prevails because of variations in the success rates of different treatment protocols in animal and human studies. Among the classical hypotheses explaining AD pathogenesis, the amyloid hypothesis is currently being targeted for drug development. The underlying concept is to prevent the formation of these neurotoxic peptides which play a central role in AD pathology and trigger a multispectral cascade of neurodegenerative processes post-aggregation. This could possibly be achieved by pharmacological inhibition of β- or γ-secretase or stimulating the nonamyloidogenic α-secretase. Melatonin the pineal hormone is a multifunctioning indoleamine. Production of this amphiphilic molecule diminishes with advancing age and this decrease runs parallel with the progression of AD which itself explains the potential benefits of melatonin in line of development and devastating consequences of the disease progression. Our recent studies have revealed a novel mechanism by which melatonin stimulates the nonamyloidogenic processing and inhibits the amyloidogenic processing of β-amyloid precursor protein (βAPP) by stimulating α -secretases and consequently down regulating both β- and γ-secretases at the transcriptional level. In this review, we discuss and evaluate the neuroprotective functions of melatonin in AD pathogenesis, including its role in the classical hypotheses in cellular and animal models and clinical interventions in AD patients, and suggest that with early detection, melatonin treatment is qualified to be an anti-AD therapy.
Collapse
Affiliation(s)
- Mayuri Shukla
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
| | - Piyarat Govitrapong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand
| | - Parichart Boontem
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
| | - Russel J. Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Jutamaad Satayavivad
- Chulabhorn Research Institute and Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok10210, Thailand
| |
Collapse
|
31
|
Zhu D, Wang H, Wu J, Wang Q, Xu L, Zhao Y, Pang K, Shi Q, Zhao W, Zhang J, Sun J. Postnatal Administration of Dizocilpine Inhibits Neuronal Excitability in PFC and Induces Social Deficits Detected by MiceProfiler. Mol Neurobiol 2016; 54:8152-8161. [PMID: 27896651 DOI: 10.1007/s12035-016-0291-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 11/08/2016] [Indexed: 12/17/2022]
Abstract
Schizophrenia is a devastating mental disease with social deficit as its core component of negative symptoms, which could be induced in rodents by dizocilpine (MK-801), a noncompetitive NMDA receptor antagonist. NMDA receptors are highly expressed during the postnatal period. However, less attention has been paid to the effects of postnatal MK-801 administration on social interaction. In this study, we evaluated the effects of postnatal administration of MK-801 on social interaction and explored the possible mechanisms. Postnatal day-7 mice were intraperitoneally injected with MK-801 twice daily for 5 days, and their social interaction repertoire was monitored by a computerized video in the 10th week. The contact event, relative position event, stop-state, and dynamic event were analyzed with MiceProfiler automatic idTracker system. The results showed that MK-801 reduced the number of the contact events, relative position events, and stop-states, while increased the number and duration of dynamic events. These changes implied that MK-801-injected mice had indifference and lower motivation in social interaction and could be a useful model for studies on the social deficit of schizophrenia. The prefrontal cortex is the key region for social interaction behaviors. Slice patch clamp was performed to analyze the cellular excitability of prefrontal cortical neurons after postnatal treatment with MK-801 in mice. The results demonstrated that MK-801 injection reduced the frequency and amplitude of action potentials, but increased the frequency of miniature inhibitory postsynaptic currents. These data illustrated that the excitability of neurons in the prefrontal cortex was inhibited. Finally, immunoblotting data demonstrated that MK-801 significantly decreased the levels of sirtuin 1 (SIRT1) and phosphorylated protein kinase B (p-PKB) in the prefrontal cortex (both P < 0.05). Taken together, our results indicated that administration of MK-801 to postnatal mice induces social interaction deficits possibly due to inhibiting the neuronal excitability and decreasing the levels of SIRT1 and p-PKB in the prefrontal cortex.
Collapse
Affiliation(s)
- Dexiao Zhu
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Hui Wang
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jintao Wu
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Qian Wang
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ling Xu
- Department of Rehabilitation, Qilu Children's Hospital, Shandong University, Jinan, Shandong, China
| | - Yue Zhao
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Kunkun Pang
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Qingqing Shi
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Wenbo Zhao
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jing Zhang
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jinhao Sun
- Department of Anatomy, School of Medicine, Shandong University, Jinan, Shandong, 250012, China.
| |
Collapse
|
32
|
Jęśko H, Wencel P, Strosznajder RP, Strosznajder JB. Sirtuins and Their Roles in Brain Aging and Neurodegenerative Disorders. Neurochem Res 2016; 42:876-890. [PMID: 27882448 PMCID: PMC5357501 DOI: 10.1007/s11064-016-2110-y] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 10/21/2016] [Accepted: 11/14/2016] [Indexed: 02/07/2023]
Abstract
Sirtuins (SIRT1-SIRT7) are unique histone deacetylases (HDACs) whose activity depends on NAD+ levels and thus on the cellular metabolic status. SIRTs regulate energy metabolism and mitochondrial function. They orchestrate the stress response and damage repair. Through these functions sirtuins modulate the course of aging and affect neurodegenerative diseases. SIRTSs interact with multiple signaling proteins, transcription factors (TFs) and poly(ADP-ribose) polymerases (PARPs) another class of NAD+-dependent post-translational protein modifiers. The cross-talk between SIRTs TFs and PARPs is a highly promising research target in a number of brain pathologies. This review describes updated results on sirtuins in brain aging/neurodegeneration. It focuses on SIRT1 but also on the roles of mitochondrial SIRTs (SIRT3, 4, 5) and on SIRT6 and SIRT2 localized in the nucleus and in cytosol, respectively. The involvement of SIRTs in regulation of insulin-like growth factor signaling in the brain during aging and in Alzheimer's disease was also focused. Moreover, we analyze the mechanism(s) and potential significance of interactions between SIRTs and several TFs in the regulation of cell survival and death. A critical view is given on the application of SIRT activators/modulators in therapy of neurodegenerative diseases.
Collapse
Affiliation(s)
- Henryk Jęśko
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego st., 02106, Warsaw, Poland
| | - Przemysław Wencel
- Laboratory of Preclinical Research and Environmental Agents, Department of Neurosurgery, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego st., 02106, Warsaw, Poland
| | - Robert P Strosznajder
- Laboratory of Preclinical Research and Environmental Agents, Department of Neurosurgery, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego st., 02106, Warsaw, Poland.
| | - Joanna B Strosznajder
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego st., 02106, Warsaw, Poland
| |
Collapse
|
33
|
Zhu D, Zhang J, Wu J, Li G, Yao W, Hao J, Sun J. Paliperidone Protects SH-SY5Y Cells Against MK-801-Induced Neuronal Damage Through Inhibition of Ca(2+) Influx and Regulation of SIRT1/miR-134 Signal Pathway. Mol Neurobiol 2015; 53:2498-509. [PMID: 26055227 DOI: 10.1007/s12035-015-9217-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/12/2015] [Indexed: 01/09/2023]
Abstract
Schizophrenia is a serious psychotic disease. Recently, increasing evidences support that neurodegeneration occurs in the brain of schizophrenia patients with progressive morphological changes. Paliperidone, an atypical antipsychotic drug, could attenuate psychotic symptom and protect neurons from different stressors. However, the underlying mechanisms are largely unknown. In this study, we used SH-SY5Y cells to evaluate the neuroprotective capability of paliperidone against the neurotoxicity induced by N-methyl-D-aspartate receptor antagonist, MK-801. And, we also explored the possible molecular mechanism. Neurotoxicity of 100 μM MK-801, which reduced the cell viability, was diminished by 100 μM paliperidone using MTT and LDH assays (both p < 0.05). Analysis with Hoechst 33342/PI double staining demonstrated that exposure to MK-801 (100 μM) for 24 h led to the death of 30 % of cultured cells (p < 0.05). Moreover, the patch clamp technique was employed to detect voltage calcium channel changes; the results showed that paliperidone effectively blocked the Ca(2+) influx through inhibiting the voltage-gated calcium channels (p < 0.05). Furthermore, paliperidone significantly reversed MK-801 induced increase of SIRT1 and decrease of miR-134 expression (both p < 0.05). Finally, SIRT1 inhibitor nicotinamide blocked MK-801 injury effects and suppressed miR-134 expression. Taken together, our results demonstrated that paliperidone could protect SH-SY5Y cells against MK-801 induced neurotoxicity via inhibition of Ca(2+) influx and regulation of SIRT1/miR-134 pathway, providing a promising and potential therapeutic target for schizophrenia.
Collapse
Affiliation(s)
- Dexiao Zhu
- Department of Anatomy, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Jing Zhang
- Department of Anatomy, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Jintao Wu
- Department of Anatomy, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Guibao Li
- Department of Anatomy, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Wei Yao
- Department of Physiology, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Jing Hao
- Department of Histology and Embryology, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China
| | - Jinhao Sun
- Department of Anatomy, School of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong Province, 250012, People's Republic of China.
| |
Collapse
|
34
|
Blacher E, Dadali T, Bespalko A, Haupenthal VJ, Grimm MOW, Hartmann T, Lund FE, Stein R, Levy A. Alzheimer's disease pathology is attenuated in a CD38-deficient mouse model. Ann Neurol 2015; 78:88-103. [PMID: 25893674 DOI: 10.1002/ana.24425] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 03/03/2015] [Accepted: 04/07/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Alzheimer's disease (AD)-associated dementia is due to tissue damage caused by amyloid β (Aβ) deposition within the brain and by accompanying neuroinflammation. The nicotinamide adenine dinucleotide (NAD) glycohydrolase CD38, which is expressed by neurons, astrocytes, and microglial cells, regulates inflammatory and repair processes in the brain and other tissues by degrading NAD and repressing the activity of other NAD-consuming enzymes and by producing NAD-derived metabolites that regulate calcium signaling and migration of inflammatory cells. Given the role of CD38 in neuroinflammation and repair, we examined the effect of CD38 deletion on AD pathology. METHODS We crossed APPswePS1ΔE9 (APP.PS) mice with Cd38(-) (/) (-) mice to generate AD-prone CD38-deficient animals (APP.PS.Cd38(-) (/) (-) ) and examined AD-related phenotypes in both groups. RESULTS APP.PS.Cd38(-) (/) (-) mice exhibited significant reductions in Aβ plaque load and soluble Aβ levels compared to APP.PS mice, and this correlated with improved spatial learning. Although CD38 deficiency resulted in decreased microglia/macrophage (MM) accumulation, the transcription profile of the Cd38(-) (/) (-) and Cd38(+/) (+) MM was similar, suggesting that the decreased Aβ burden in APP.PS.Cd38(-) (/) (-) mice was not due to alterations in MM activation/function. Instead, APP.PS.Cd38(-) (/) (-) neuronal cultures secreted less Aβ and this reduction was mimicked when APP.PS neuronal cultures were treated with inhibitors that blocked CD38 enzyme activity or the signaling pathways controlled by CD38-derived metabolites. Furthermore, β- and γ-secretase activity was decreased in APP.PS.Cd38(-) (/) (-) mice, which correlated with decreased Aβ production. INTERPRETATION CD38 regulates AD pathology in the APP.PS model of AD, suggesting that CD38 may be a novel target for AD treatment.
Collapse
Affiliation(s)
- Eran Blacher
- Department of Neurobiology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Tulin Dadali
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Alina Bespalko
- Department of Neurobiology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Viola J Haupenthal
- German Institute for Dementia Prevention, Saarland University, Homburg, Germany
- Neurodegeneration and Neurobiology, Saarland University, Homburg, Germany
- Experimental Neurology, Saarland University, Homburg, Germany
| | - Marcus O W Grimm
- German Institute for Dementia Prevention, Saarland University, Homburg, Germany
- Neurodegeneration and Neurobiology, Saarland University, Homburg, Germany
- Experimental Neurology, Saarland University, Homburg, Germany
| | - Tobias Hartmann
- German Institute for Dementia Prevention, Saarland University, Homburg, Germany
- Neurodegeneration and Neurobiology, Saarland University, Homburg, Germany
- Experimental Neurology, Saarland University, Homburg, Germany
| | - Frances E Lund
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Reuven Stein
- Department of Neurobiology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Ayelet Levy
- Department of Neurobiology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
35
|
Kovacic JC, Moreno P, Hachinski V, Nabel EG, Fuster V. Cellular senescence, vascular disease, and aging: Part 1 of a 2-part review. Circulation 2015; 123:1650-60. [PMID: 21502583 DOI: 10.1161/circulationaha.110.007021] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jason C Kovacic
- The Zena and Michael A. Wiener Cardiovascular Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | | | | | | | | |
Collapse
|
36
|
Abstract
Alzheimer's disease (AD), the most common form of dementia, is a chronic, progressive neurodegenerative disease that manifests clinically as a slow global decline in cognitive function, including deterioration of memory, reasoning, abstraction, language and emotional stability, culminating in a patient with end-stage disease, totally dependent on custodial care. With a global ageing population, it is predicted that there will be a marked increase in the number of people diagnosed with AD in the coming decades, making this a significant challenge to socio-economic policy and aged care. Global estimates put a direct cost for treating and caring for people with dementia at $US604 billion, an estimate that is expected to increase markedly. According to recent global statistics, there are 35.6 million dementia sufferers, the number of which is predicted to double every 20 years, unless strategies are implemented to reduce this burden. Currently, there is no cure for AD; while current therapies may temporarily ameliorate symptoms, death usually occurs approximately 8 years after diagnosis. A greater understanding of AD pathophysiology is paramount, and attention is now being directed to the discovery of biomarkers that may not only facilitate pre-symptomatic diagnosis, but also provide an insight into aberrant biochemical pathways that may reveal potential therapeutic targets, including nutritional ones. AD pathogenesis develops over many years before clinical symptoms appear, providing the opportunity to develop therapy that could slow or stop disease progression well before any clinical manifestation develops.
Collapse
|
37
|
In vivo NAD assay reveals the intracellular NAD contents and redox state in healthy human brain and their age dependences. Proc Natl Acad Sci U S A 2015; 112:2876-81. [PMID: 25730862 DOI: 10.1073/pnas.1417921112] [Citation(s) in RCA: 310] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
NAD is an essential metabolite that exists in NAD(+) or NADH form in all living cells. Despite its critical roles in regulating mitochondrial energy production through the NAD(+)/NADH redox state and modulating cellular signaling processes through the activity of the NAD(+)-dependent enzymes, the method for quantifying intracellular NAD contents and redox state is limited to a few in vitro or ex vivo assays, which are not suitable for studying a living brain or organ. Here, we present a magnetic resonance (MR) -based in vivo NAD assay that uses the high-field MR scanner and is capable of noninvasively assessing NAD(+) and NADH contents and the NAD(+)/NADH redox state in intact human brain. The results of this study provide the first insight, to our knowledge, into the cellular NAD concentrations and redox state in the brains of healthy volunteers. Furthermore, an age-dependent increase of intracellular NADH and age-dependent reductions in NAD(+), total NAD contents, and NAD(+)/NADH redox potential of the healthy human brain were revealed in this study. The overall findings not only provide direct evidence of declined mitochondrial functions and altered NAD homeostasis that accompany the normal aging process but also, elucidate the merits and potentials of this new NAD assay for noninvasively studying the intracellular NAD metabolism and redox state in normal and diseased human brain or other organs in situ.
Collapse
|
38
|
Alzheimer's disease and epigenetic diet. Neurochem Int 2014; 78:105-16. [DOI: 10.1016/j.neuint.2014.09.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 09/18/2014] [Accepted: 09/29/2014] [Indexed: 01/04/2023]
|
39
|
Pasinetti GM, Wang J, Ho L, Zhao W, Dubner L. Roles of resveratrol and other grape-derived polyphenols in Alzheimer's disease prevention and treatment. Biochim Biophys Acta Mol Basis Dis 2014; 1852:1202-8. [PMID: 25315300 DOI: 10.1016/j.bbadis.2014.10.006] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 10/03/2014] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD) is a devastating disorder that strikes 1 in 10 Americans over the age of 65, and almost half of all Americans over 85 years old. The odds of an individual developing AD double every five years after the age of 65. While it has become increasingly common to meet heart attack or cancer survivors, there are no AD survivors. There is mounting evidence that dietary polyphenols, including resveratrol, may beneficially influence AD. Based on this consideration, several studies reported in the last few years were designed to validate sensitive and reliable translational tools to mechanistically characterize brain bioavailable polyphenols as disease-modifying agents to help prevent the onset of AD dementia and other neurodegenerative disorders. Several research groups worldwide with expertise in AD, plant biology, nutritional sciences, and botanical sciences have reported very high quality studies that ultimately provided the necessary information showing that polyphenols and their metabolites, which come from several dietary sources, including grapes, cocoa etc., are capable of preventing AD. The ultimate goal of these studies was to provide novel strategies to prevent the disease even before the onset of clinical symptoms. The studies discussed in this review article provide support that the information gathered in the last few years of research will have a major impact on AD prevention by providing vital knowledge on the protective roles of polyphenols, including resveratrol. This article is part of a Special Issue entitled: Resveratrol: Challenges in translating pre-clinical findings to improved patient outcomes.
Collapse
Affiliation(s)
- Giulio Maria Pasinetti
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Psychiatry, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Geriatric Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA.
| | - Jun Wang
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Geriatric Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA
| | - Lap Ho
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Geriatric Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA
| | - Wei Zhao
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Geriatric Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA
| | - Lauren Dubner
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| |
Collapse
|
40
|
Ferretta A, Gaballo A, Tanzarella P, Piccoli C, Capitanio N, Nico B, Annese T, Di Paola M, Dell'aquila C, De Mari M, Ferranini E, Bonifati V, Pacelli C, Cocco T. Effect of resveratrol on mitochondrial function: implications in parkin-associated familiar Parkinson's disease. Biochim Biophys Acta Mol Basis Dis 2014; 1842:902-15. [PMID: 24582596 DOI: 10.1016/j.bbadis.2014.02.010] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 02/13/2014] [Accepted: 02/19/2014] [Indexed: 01/25/2023]
Abstract
Mitochondrial dysfunction and oxidative stress occur in Parkinson's disease (PD), but the molecular mechanisms controlling these events are not completely understood. Peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α) is a transcriptional coactivator known as master regulator of mitochondrial functions and oxidative metabolism. Recent studies, including one from our group, have highlighted altered PGC-1α activity and transcriptional deregulation of its target genes in PD pathogenesis suggesting it as a new potential therapeutic target. Resveratrol, a natural polyphenolic compound proved to improve mitochondrial activity through the activation of several metabolic sensors resulting in PGC-1α activation. Here we have tested in vitro the effect of resveratrol treatment on primary fibroblast cultures from two patients with early-onset PD linked to different Park2 mutations. We show that resveratrol regulates energy homeostasis through activation of AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) and raise of mRNA expression of a number of PGC-1α's target genes resulting in enhanced mitochondrial oxidative function, likely related to a decrease of oxidative stress and to an increase of mitochondrial biogenesis. The functional impact of resveratrol treatment encompassed an increase of complex I and citrate synthase activities, basal oxygen consumption, and mitochondrial ATP production and a decrease in lactate content, thus supporting a switch from glycolytic to oxidative metabolism. Moreover, resveratrol treatment caused an enhanced macro-autophagic flux through activation of an LC3-independent pathway. Our results, obtained in early-onset PD fibroblasts, suggest that resveratrol may have potential clinical application in selected cases of PD-affected patients.
Collapse
Affiliation(s)
- Anna Ferretta
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy
| | - Antonio Gaballo
- Institute of Nanoscience-NNL, Consiglio Nazionale delle Ricerche (CNR), Lecce, Italy
| | - Paola Tanzarella
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy
| | - Claudia Piccoli
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Beatrice Nico
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy
| | - Marco Di Paola
- Institute of Biomembranes and Bioenergetics, Consiglio Nazionale delle Ricerche, (CNR), Bari, Italy
| | | | - Michele De Mari
- Department of Neurology, 'Bonomo' Hospital, Andria (BA), Italy
| | | | - Vincenzo Bonifati
- Department of Clinical Genetics, Erasmus MC, Dr. Molewaterplein 50, 3015 GE Rotterdam, The Netherlands
| | - Consiglia Pacelli
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy.
| | - Tiziana Cocco
- Department of Basic Medical Sciences, Neurosciences and Organs of Senses, University of Bari 'A. Moro', Bari, Italy.
| |
Collapse
|
41
|
Martins IJ, Creegan R. Links between Insulin Resistance, Lipoprotein Metabolism and Amyloidosis in Alzheimer’s Disease. Health (London) 2014. [DOI: 10.4236/health.2014.612190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
42
|
Duan W. Sirtuins: from metabolic regulation to brain aging. Front Aging Neurosci 2013; 5:36. [PMID: 23888142 PMCID: PMC3719022 DOI: 10.3389/fnagi.2013.00036] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 07/01/2013] [Indexed: 12/13/2022] Open
Abstract
Brain aging is characterized by progressive loss of neurophysiological functions that is often accompanied by age-associated neurodegeneration. Calorie restriction has been linked to extension of lifespan and reduction of the risk of neurodegenerative diseases in experimental model systems. Several signaling pathways have been indicated to underlie the beneficial effects of calorie restriction, among which the sirtuin family has been suggested to play a central role. In mammals, it has been established that sirtuins regulate physiological responses to metabolism and stress, two key factors that affect the process of aging. Sirtuins represent a promising new class of conserved deacetylases that play an important role in regulating metabolism and aging. This review focuses on current understanding of the relation between metabolic pathways involving sirtuins and the brain aging process, with focus on SIRT1 and SIRT3. Identification of therapeutic agents capable of modulating the expression and/or activity of sirtuins is expected to provide promising strategies for ameliorating neurodegeneration. Future investigations regarding the concerted interplay of the different sirtuins will help us understand more about the aging process, and potentially lead to the development of therapeutic approaches for the treatment of age-related neurodegenerative diseases and promotion of successful aging.
Collapse
Affiliation(s)
- Wenzhen Duan
- Division of Neurobiology, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine Baltimore, MD, USA ; Department of Neuroscience, Johns Hopkins University School of Medicine Baltimore, MD, USA ; Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine Baltimore, MD, USA
| |
Collapse
|
43
|
Adwan L, Zawia NH. Epigenetics: a novel therapeutic approach for the treatment of Alzheimer's disease. Pharmacol Ther 2013; 139:41-50. [PMID: 23562602 PMCID: PMC3693222 DOI: 10.1016/j.pharmthera.2013.03.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 03/19/2013] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is the most common type of dementia in the elderly. It is characterized by the deposition of two forms of aggregates within the brain, the amyloid β plaques and tau neurofibrillary tangles. Currently, no disease-modifying agent is approved for the treatment of AD. Approved pharmacotherapies target the peripheral symptoms but they do not prevent or slow down the progression of the disease. Although several disease-modifying immunotherapeutic agents are in clinical development, many have failed due to the lack of efficacy or serious adverse events. Epigenetic changes including DNA methylation and histone modifications are involved in learning and memory and have been recently highlighted for holding promise as potential targets for AD therapeutics. Dynamic and latent epigenetic alterations are incorporated in AD pathological pathways and present valuable reversible targets for AD and other neurological disorders. The approval of epigenetic drugs for cancer treatment has opened the door for the development of epigenetic drugs for other disorders including neurodegenerative diseases. In particular, methyl donors and histone deacetylase inhibitors are being investigated for possible therapeutic effects to rescue memory and cognitive decline found in such disorders. This review explores the area of epigenetics for potential AD interventions and presents the most recent findings in this field.
Collapse
Affiliation(s)
- Lina Adwan
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA
| | - Nasser H. Zawia
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA
- Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston, RI, USA
| |
Collapse
|
44
|
Abstract
Huntington's disease (HD) is an autosomal dominant hereditary disease caused by a trinucleotide repeat mutation in the huntingtin gene that results in an increased number of glutamine residues in the N terminus of huntingtin protein. Mutant huntingtin leads to progressive impairment of motor function, cognitive dysfunction, and neuropsychiatric disturbance. There are no disease-modifying treatments available. During the past decade, sirtuin-1 (SIRT1) has been the focus of intense investigation and discussion because it regulates longevity in multiple organisms and has shown beneficial effects in a variety of models of neurodegenerative disorders. Studies in different animal models provide convincing evidence that SIRT1 protects neurons in mouse models of HD as well as in Caenorhabditis elegans, although controversial results were reported in a fly model. Indeed, many connections exist between the deacetylation function of SIRT1 and its role in neuroprotection. As a result, pharmacological interventions targeting SIRT1 might become promising strategies to combat HD. This review summarizes recent progress in SIRT1 research, with a focus on the specificity of this protein as a potential therapeutic target for HD, as well as existing challenges for developing SIRT1 modulators for clinical use.
Collapse
|
45
|
Dhurandhar EJ, Allison DB, van Groen T, Kadish I. Hunger in the absence of caloric restriction improves cognition and attenuates Alzheimer's disease pathology in a mouse model. PLoS One 2013; 8:e60437. [PMID: 23565247 PMCID: PMC3614512 DOI: 10.1371/journal.pone.0060437] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 02/26/2013] [Indexed: 12/24/2022] Open
Abstract
It has been shown that caloric restriction (CR) delays aging and possibly delays the development of Alzheimer's disease (AD). We conjecture that the mechanism may involve interoceptive cues, rather than reduced energy intake per se. We determined that hunger alone, induced by a ghrelin agonist, reduces AD pathology and improves cognition in the APP-SwDI mouse model of AD. Long-term treatment with a ghrelin agonist was sufficient to improve the performance in the water maze. The treatment also reduced levels of amyloid beta (Aβ) and inflammation (microglial activation) at 6 months of age compared to the control group, similar to the effect of CR. Thus, a hunger-inducing drug attenuates AD pathology, in the absence of CR, and the neuroendocrine aspects of hunger also prevent age-related cognitive decline.
Collapse
Affiliation(s)
- Emily J. Dhurandhar
- School of Public Health, Office of Energetics, Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - David B. Allison
- School of Public Health, Office of Energetics, Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Thomas van Groen
- Department of Cell, Developmental and Integrative Biology, Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Inga Kadish
- Department of Cell, Developmental and Integrative Biology, Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
| |
Collapse
|
46
|
Hou Y, Chen H, He Q, Jiang W, Luo T, Duan J, Mu N, He Y, Wang H. Changes in methylation patterns of multiple genes from peripheral blood leucocytes of Alzheimer's disease patients. Acta Neuropsychiatr 2013; 25:66-76. [PMID: 25287307 DOI: 10.1111/j.1601-5215.2012.00662.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Efforts aiming at identifying biomarkers and corresponding methods for early diagnosis of Alzheimer's disease (AD) might be the most appropriate strategy to initiate promising new treatments and/or prevention of AD OBJECTIVE: The aim of our study is to assess the association of DNA methylation pattern of various leucocyte genes with AD pathogenesis in order to find potential biomarkers and corresponding methods for molecular diagnosis of AD. METHODS DNA methylation level of various genes in AD patients and normal population were compared by bisulphite sequencing PCR and methylation-specific PCR (MSP). Furthermore, real-time PCR was used to explore the effects of DNA methylation on the expression of target genes. RESULTS Results showed significant hypermethylation of mammalian orthologue of Sir2 (SIRT1) gene in AD patients compared with normal population. Meanwhile, changes in methylation level of SIRT1 gene between different severities of AD were also found. Specific primers were designed from the SIRT1 CpG islands to differentiate AD and control group by MSP method. Besides, significant demethylation of β-amyloid precursor protein (APP) gene was observed in AD patients, whereas no difference was observed in other AD-related genes. Moreover, significant decrease in expression of SIRT1 gene and increase in expression of APP gene were also found in AD patients. In addition, the expression level of SIRT1/APP genes was associated with the severity, but not with the age or gender, of AD patients. CONCLUSION SIRT1 and APP might be the interesting candidate biomarkers and valuable for clinical diagnosis or treatment of AD.
Collapse
Affiliation(s)
- Yaping Hou
- 1 Department of Anatomy & Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Huayun Chen
- 2 Daan Gene Diagnostic Center, Sun Yat-sen University, Guangzhou, PR China
| | - Qiong He
- 1 Department of Anatomy & Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Wei Jiang
- 1 Department of Anatomy & Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Tao Luo
- 1 Department of Anatomy & Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Jinhai Duan
- 3 East Department of Neurology, Guangdong General Hospital, Guangzhou, PR China
| | - Nan Mu
- 6 Guangzhou Brain Hospital, Guangzhou, PR China
| | - Yunshao He
- 2 Daan Gene Diagnostic Center, Sun Yat-sen University, Guangzhou, PR China
| | - Huaqiao Wang
- 1 Department of Anatomy & Neurobiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| |
Collapse
|
47
|
Insulin induces neurite outgrowth via SIRT1 in SH-SY5Y cells. Neuroscience 2013; 238:371-80. [PMID: 23357110 DOI: 10.1016/j.neuroscience.2013.01.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 01/05/2013] [Accepted: 01/07/2013] [Indexed: 01/24/2023]
Abstract
Insulin plays diverse roles, including learning and memory, in the central nervous system. SIRT1 has been reported to be involved in the processes of normal learning, memory, and synaptic plasticity. However, whether insulin is directly involved in regulating SIRT1 expression in neurons or whether it affects synapses remains largely unknown. Here, we show that insulin promotes neurite outgrowth and increases SIRT1 expression in SH-SY5Y cells. LY294002, a phosphatidylinositol 3-kinase inhibitor, inhibited the expression of insulin-induced increases in SIRT1. Conversely, the downregulation of SIRT1 using a SIRT1 inhibitor and SIRT1-siRNA resulted in a significant reduction in the length of neurite outgrowth. Taken together, these results suggest that the regulation of SIRT1 by insulin is important for the neurite outgrowth of neuroblastoma cells.
Collapse
|
48
|
Martins IJ, Lim WLF, Wilson AC, Laws SM, Martins RN. The acceleration of aging and Alzheimer’s disease through the biological mechanisms behind obesity and type II diabetes. Health (London) 2013. [DOI: 10.4236/health.2013.55121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
49
|
Caloric Restriction and the Nutrient-Sensing PGC-1α in Mitochondrial Homeostasis: New Perspectives in Neurodegeneration. Int J Cell Biol 2012; 2012:759583. [PMID: 22829833 PMCID: PMC3399559 DOI: 10.1155/2012/759583] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 06/08/2012] [Indexed: 12/25/2022] Open
Abstract
Mitochondrial activity progressively declines during ageing and in many neurodegenerative diseases. Caloric restriction (CR) has been suggested as a dietary intervention that is able to postpone the detrimental aspects of aging as it ameliorates mitochondrial performance. This effect is partially due to increased mitochondrial biogenesis. The nutrient-sensing PGC-1α is a transcriptional coactivator that promotes the expression of mitochondrial genes and is induced by CR. It is believed that many of the mitochondrial and metabolic benefits of CR are due to increased PGC-1α activity. The increase of PGC-1α is also positively linked to neuroprotection and its decrement has been involved in the pathogenesis of many neurodegenerative diseases. This paper aims to summarize the current knowledge about the role of PGC-1α in neuronal homeostasis and the beneficial effects of CR on mitochondrial biogenesis and function. We also discuss how PGC-1α-governed pathways could be used as target for nutritional intervention to prevent neurodegeneration.
Collapse
|
50
|
Jeong JK, Moon MH, Lee YJ, Seol JW, Park SY. Autophagy induced by the class III histone deacetylase Sirt1 prevents prion peptide neurotoxicity. Neurobiol Aging 2012; 34:146-56. [PMID: 22575359 DOI: 10.1016/j.neurobiolaging.2012.04.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 03/12/2012] [Accepted: 04/04/2012] [Indexed: 10/28/2022]
Abstract
Sirtuin 1 (Sirt1) is a class III histone deacetylase that mediates the protective effects of neurons in neurodegenerative disorders, including Alzheimer's and prion disease. However, the mechanism directly involved in neuroprotection is still poorly understood. Recent evidence has demonstrated that activating Sirt1 induces autophagy, and that activating autophagy protects neurons against neurodegenerative disorders by regulating mitochondrial homeostasis. Thus, we focused on the mechanism of the Sirt1-mediated neuroprotective effect that was associated with regulating mitochondrial homeostasis via autophagy. Adenoviral-mediated Sirt1 overexpression prevented prion protein (PrP)(106-126)-induced neurotoxicity via autophagy processing. Moreover, Sirt1-induced autophagy protected against the PrP(106-126)-mediated decrease in the mitochondrial membrane potential value. Additionally, Sirt1 overexpression decreased PrP(106-126)-induced Bax translocation to the mitochondria and cytochrome c release into the cytosol. Sirt1 knockdown using small interfering (si) RNAs induced downregulation of Sirt1 protein expression and sensitized neuron cells to PrP(106-126)-induced cell death and mitochondrial dysfunction. Knockdown of autophagy-related 5 (ATG5) using small interfering RNA decreased autophagy-related 5 and autophagy marker microtubule-associated protein 1 light chain 3-II protein levels and blocked the effect of a Sirt1 activator against PrP(106-126)-induced mitochondrial dysfunction and neurotoxicity. Taken together, this study is the first report demonstrating that autophagy induced by Sirt1 activation plays a pivotal role protecting against prion-induced neuron cell death and also suggests that regulating autophagy including which by Sirt1 activation may be a therapeutic target for neurodegenerative disorders including the prion disease.
Collapse
Affiliation(s)
- Jae-Kyo Jeong
- Center for Healthcare Technology Development, Korea Zoonoses Research Institute, College of Veterinary Medicine, Chonbuk National University, Jeonju, Jeonbuk, South Korea
| | | | | | | | | |
Collapse
|