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Mohamad Hazir NS, Yahaya NHM, Zawawi MSF, Damanhuri HA, Mohamed N, Alias E. Changes in Metabolism and Mitochondrial Bioenergetics during Polyethylene-Induced Osteoclastogenesis. Int J Mol Sci 2022; 23:ijms23158331. [PMID: 35955464 PMCID: PMC9368566 DOI: 10.3390/ijms23158331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/24/2022] [Accepted: 07/24/2022] [Indexed: 12/10/2022] Open
Abstract
Changes in mitochondrial bioenergetics are believed to take place during osteoclastogenesis. This study aims to assess changes in mitochondrial bioenergetics and reactive oxygen species (ROS) levels during polyethylene (PE)-induced osteoclastogenesis in vitro. For this purpose, RAW264.7 cells were cultured for nine days and allowed to differentiate into osteoclasts in the presence of PE and RANKL. The total TRAP-positive cells, resorption activity, expression of osteoclast marker genes, ROS level, mitochondrial bioenergetics, glycolysis, and substrate utilization were measured. The effect of tocotrienols-rich fraction (TRF) treatment (50 ng/mL) on those parameters during PE-induced osteoclastogenesis was also studied. During PE-induced osteoclastogenesis, as depicted by an increase in TRAP-positive cells and gene expression of osteoclast-related markers, higher proton leak, higher extracellular acidification rate (ECAR), as well as higher levels of ROS and NADPH oxidases (NOXs) were observed in the differentiated cells. The oxidation level of some substrates in the differentiated group was higher than in other groups. TRF treatment significantly reduced the number of TRAP-positive osteoclasts, bone resorption activity, and ROS levels, as well as modulating the gene expression of antioxidant-related genes and mitochondrial function. In conclusion, changes in mitochondrial bioenergetics and substrate utilization were observed during PE-induced osteoclastogenesis, while TRF treatment modulated these changes.
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Affiliation(s)
- Nur Shukriyah Mohamad Hazir
- Department of Biochemistry, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (N.S.M.H.); (H.A.D.)
- Clinical Laboratory Section, Institute of Medical Science Technology, Universiti Kuala Lumpur, A1-1, Jalan TKS 1, Taman Kajang Sentral, Kajang 43000, Selangor, Malaysia
| | - Nor Hamdan Mohamad Yahaya
- Department of Orthopaedics, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia;
| | - Muhamad Syahrul Fitri Zawawi
- Department of Orthopaedics, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia;
| | - Hanafi Ahmad Damanhuri
- Department of Biochemistry, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (N.S.M.H.); (H.A.D.)
| | - Norazlina Mohamed
- Department of Pharmacology, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia;
| | - Ekram Alias
- Department of Biochemistry, Faculty of Medicine, Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (N.S.M.H.); (H.A.D.)
- Correspondence: ; Tel.: +60-3-91459559
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Ryu WI, Shen M, Lee Y, Healy RA, Bormann MK, Cohen BM, Sonntag KC. Nicotinamide riboside and caffeine partially restore diminished NAD availability but not altered energy metabolism in Alzheimer's disease. Aging Cell 2022; 21:e13658. [PMID: 35730144 PMCID: PMC9282847 DOI: 10.1111/acel.13658] [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: 11/18/2021] [Revised: 05/20/2022] [Accepted: 06/02/2022] [Indexed: 12/03/2022] Open
Abstract
The redox co‐factor nicotinamide adenine dinucleotide (NAD) declines with age, and NAD deficits are specifically associated with dysfunctional energy metabolism in late‐onset Alzheimer's disease (LOAD). Nicotinamide riboside (NR), a dietary NAD precursor, has been suggested to ameliorate the aging process or neurodegeneration. We assessed whether NR with or without caffeine, which increases nicotinamide mononucleotide transferase subtype 2 (NMNAT2), an essential enzyme in NAD production, modulates bioenergetic functions in LOAD. In LOAD patients—and young or old control individuals—derived dermal fibroblasts as well as in induced pluripotent stem cell‐differentiated neural progenitors and astrocytes, NR and caffeine cell type‐specifically increased the NAD pool, transiently enhanced mitochondrial respiration or glycolysis and altered the expression of genes in the NAD synthesis or consumption pathways. However, continued treatment led to reversed bioenergetic effects. Importantly, NR and caffeine did not alter the characteristics of a previously documented inherent LOAD‐associated bioenergetic phenotype. Thus, although NR and caffeine can partially restore diminished NAD availability, increasing NAD alone may not be sufficient to boost or restore energy metabolism in brain aging or alter aberrant energy management in LOAD. Nicotinamide riboside might still be of value in combination with other agents in preventive or therapeutic intervention strategies to address the aging process or age‐associated dementia.
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Affiliation(s)
- Woo-In Ryu
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Minqi Shen
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Yoon Lee
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Ryan A Healy
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Mariana K Bormann
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Bruce M Cohen
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - Kai-Christian Sonntag
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Basic Neuroscience Division, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.,Program for Neuropsychiatric Research, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
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Zhang Y, Wang X, Yang X, Yang X, Xue J, Yang Y. Ganoderic Acid A To Alleviate Neuroinflammation of Alzheimer's Disease in Mice by Regulating the Imbalance of the Th17/Tregs Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14204-14214. [PMID: 34798773 DOI: 10.1021/acs.jafc.1c06304] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ganoderic acid A (GAA) is a kind of lanostane-type triterpenoid isolated from Ganoderma lucidum. Imbalance of the Th17/Tregs axis exists in the progress of neuroinflammation of Alzheimer's disease (AD). In this study, the alleviating neuroinflammatory effect of GAA on d-galactose mice was studied from the aspect of regulating the imbalance of the Th17/Tregs axis. The Morris water maze test was used to evaluate the cognitive ability of AD mice. Flow cytometry was used to detect the percentages of IL-17A, IL-17F, IL-21, IL-22, and CD4+CD25+Foxp3+ in peripheral blood. Transmission electron microscopy was used to assess the cerebral mitochondrial ultrastructure. Metabolomic analysis based on gas chromatography-mass spectrometry was used to evaluate the mitochondrial dysfunction metabolism. Western blot analysis was used to detect the protein expressions of cytokines secreted by Th17 cells and Treg cells in the brain. As the results show, GAA has an alleviating neuroinflammatory effect on AD mice via regulating the imbalance of the Th17/Tregs axis. The potential mechanism was related to inhibition of the JAK/STAT signaling pathway induced by Th17 cells and enhancement of the mitochondrial oxidative phosphorylation by regulating Treg cells, thereby improving mitochondrial dysfunction of AD mice.
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Affiliation(s)
- Yan Zhang
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
| | - Xinyan Wang
- Graduate School, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
| | - Xiaomei Yang
- Nutritional Department, Jilin Medical University Affiliated Hospital, Jilin 132013, P. R. China
| | - Xiudong Yang
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
| | - Jianfei Xue
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
| | - Yanjun Yang
- School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
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