1
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Zhu J, Park S, Kim SH, Kim CH, Jeong KH, Kim WJ. Sirtuin 3 regulates astrocyte activation by reducing Notch1 signaling after status epilepticus. Glia 2024; 72:1136-1149. [PMID: 38406970 DOI: 10.1002/glia.24520] [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: 11/14/2023] [Revised: 01/31/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024]
Abstract
Sirtuin3 (Sirt3) is a nicotinamide adenine dinucleotide enzyme that contributes to aging, cancer, and neurodegenerative diseases. Recent studies have reported that Sirt3 exerts anti-inflammatory effects in several neuropathophysiological disorders. As epilepsy is a common neurological disease, in the present study, we investigated the role of Sirt3 in astrocyte activation and inflammatory processes after epileptic seizures. We found the elevated expression of Sirt3 within reactive astrocytes as well as in the surrounding cells in the hippocampus of patients with temporal lobe epilepsy and a mouse model of pilocarpine-induced status epilepticus (SE). The upregulation of Sirt3 by treatment with adjudin, a potential Sirt3 activator, alleviated SE-induced astrocyte activation; whereas, Sirt3 deficiency exacerbated astrocyte activation in the hippocampus after SE. In addition, our results showed that Sirt3 upregulation attenuated the activation of Notch1 signaling, nuclear factor kappa B (NF-κB) activity, and the production of interleukin-1β (IL1β) in the hippocampus after SE. By contrast, Sirt3 deficiency enhanced the activity of Notch1/NF-κB signaling and the production of IL1β. These findings suggest that Sirt3 regulates astrocyte activation by affecting the Notch1/NF-κB signaling pathway, which contributes to the inflammatory response after SE. Therefore, therapies targeting Sirt3 may be a worthy direction for limiting inflammatory responses following epileptic brain injury.
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Affiliation(s)
- Jing Zhu
- Department of Neurology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soojin Park
- Department of Neurology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Se Hoon Kim
- Department of Pathology, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea
| | - Chul Hoon Kim
- Department of Pharmacology, Brain Korea 21 Project, Brain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyoung Hoon Jeong
- Epilepsy Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won-Joo Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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2
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Wu J, Niu L, Yang K, Xu J, Zhang D, Ling J, Xia P, Wu Y, Liu X, Liu J, Zhang J, Yu P. The role and mechanism of RNA-binding proteins in bone metabolism and osteoporosis. Ageing Res Rev 2024; 96:102234. [PMID: 38367813 DOI: 10.1016/j.arr.2024.102234] [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: 10/11/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Osteoporosis is a prevalent chronic metabolic bone disease that poses a significant risk of fractures or mortality in elderly individuals. Its pathophysiological basis is often attributed to postmenopausal estrogen deficiency and natural aging, making the progression of primary osteoporosis among elderly people, especially older women, seemingly inevitable. The treatment and prevention of osteoporosis progression have been extensively discussed. Recently, as researchers delve deeper into the molecular biological mechanisms of bone remodeling, they have come to realize the crucial role of posttranscriptional gene control in bone metabolism homeostasis. RNA-binding proteins, as essential actors in posttranscriptional activities, may exert influence on osteoporosis progression by regulating the RNA life cycle. This review compiles recent findings on the involvement of RNA-binding proteins in abnormal bone metabolism in osteoporosis and describes the impact of some key RNA-binding proteins on bone metabolism regulation. Additionally, we explore the potential and rationale for modulating RNA-binding proteins as a means of treating osteoporosis, with an overview of drugs that target these proteins.
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Affiliation(s)
- Jiaqiang Wu
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, 332000, China; The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; Department of General Surgery, First Medical Center of the Chinese PLA General Hospital, Beijing, China
| | - Liyan Niu
- HuanKui College of Nanchang University, Nanchang 330006, China
| | - Kangping Yang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Jingdong Xu
- Queen Mary College of Nanchang University, Nanchang 330006, China
| | - Deju Zhang
- Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, 999077, Hong Kong, China
| | - Jitao Ling
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang 330006, China; Institute for the Study of Endocrinology and Metabolism in Jiangxi Province, Nanchang 330006, China
| | - Panpan Xia
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang 330006, China; Institute for the Study of Endocrinology and Metabolism in Jiangxi Province, Nanchang 330006, China
| | - Yuting Wu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang 330006, China; Institute for the Study of Endocrinology and Metabolism in Jiangxi Province, Nanchang 330006, China
| | - Xiao Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510275, China
| | - Jianping Liu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang 330006, China; Institute for the Study of Endocrinology and Metabolism in Jiangxi Province, Nanchang 330006, China
| | - Jing Zhang
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, 332000, China; Department of Anesthesiology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, China.
| | - Peng Yu
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, 332000, China; Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang 330006, China; Institute for the Study of Endocrinology and Metabolism in Jiangxi Province, Nanchang 330006, China.
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3
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Pan B, Chen C, Zhao Y, Cai J, Fu S, Liu J. SIRT3: A Potential Target of Different Types of Osteoporosis. Cell Biochem Biophys 2024:10.1007/s12013-024-01254-4. [PMID: 38512537 DOI: 10.1007/s12013-024-01254-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
Osteoporosis (OP) is a common age-related disease. OP is mainly a decrease in bone density and mass caused by the destruction of bone microstructure, which leads to an increase in bone fragility. SIRT3 is a mitochondrial deacetylase that plays critical roles in mitochondrial homeostasis, metabolic regulation, gene transcription, stress response, and gene stability. Studies have shown that the higher expression levels of SIRT3 are associated with decreased levels of oxidative stress in the body and may play important roles in the prevention of age-related diseases. SIRTs can enhance the osteogenic potential and osteoblastic activity of bone marrow mesenchymal stromal cells not only by enhancing PGC-1α, FOXO3, SOD2, and oxidative phosphorylation, but also by anti-aging and reducing mitochondrial autophagy. SIRT3 is able to upregulate antioxidant enzymes to exert an inhibitory effect on osteoclasts, however, it has been shown that the inflammatory cascade response can in turn increase SIRT3 and inhibit osteoclast differentiation through the AMPK-PGC-1β pathway. SIRT3 plays an important role in different types of osteoporosis by affecting osteoblasts, osteoclasts, and bone marrow mesenchymal cells. In this review, we discuss the classification and physiological functions of SIRTs, the effects of SIRT3 on OCs osteoblasts, and BMSCs, and the roles and mechanisms of SIRT3 in different types of OP, such as diabetic OP, glucocorticoid-induced OP, postmenopausal OP, and senile OP.
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Affiliation(s)
- Binjing Pan
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Chongyang Chen
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Yangting Zhao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jing Cai
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Songbo Fu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Jingfang Liu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
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4
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Lambona C, Zwergel C, Valente S, Mai A. SIRT3 Activation a Promise in Drug Development? New Insights into SIRT3 Biology and Its Implications on the Drug Discovery Process. J Med Chem 2024; 67:1662-1689. [PMID: 38261767 PMCID: PMC10859967 DOI: 10.1021/acs.jmedchem.3c01979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024]
Abstract
Sirtuins catalyze deacetylation of lysine residues with a NAD+-dependent mechanism. In mammals, the sirtuin family is composed of seven members, divided into four subclasses that differ in substrate specificity, subcellular localization, regulation, as well as interactions with other proteins, both within and outside the epigenetic field. Recently, much interest has been growing in SIRT3, which is mainly involved in regulating mitochondrial metabolism. Moreover, SIRT3 seems to be protective in diseases such as age-related, neurodegenerative, liver, kidney, heart, and metabolic ones, as well as in cancer. In most cases, activating SIRT3 could be a promising strategy to tackle these health problems. Here, we summarize the main biological functions, substrates, and interactors of SIRT3, as well as several molecules reported in the literature that are able to modulate SIRT3 activity. Among the activators, some derive from natural products, others from library screening, and others from the classical medicinal chemistry approach.
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Affiliation(s)
- Chiara Lambona
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Clemens Zwergel
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Sergio Valente
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Antonello Mai
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Pasteur
Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
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5
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Karbowska M, Pawlak K, Sieklucka B, Domaniewski T, Lebkowska U, Zawadzki R, Pawlak D. Dose-dependent exposure to indoxyl sulfate alters AHR signaling, sirtuins gene expression, oxidative DNA damage, and bone mineral status in rats. Sci Rep 2024; 14:2583. [PMID: 38297036 PMCID: PMC10831046 DOI: 10.1038/s41598-024-53164-3] [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: 07/03/2023] [Accepted: 01/29/2024] [Indexed: 02/02/2024] Open
Abstract
Indoxyl sulfate (IS), an agonist of aryl hydrocarbon receptors (AhR), can accumulate in patients with chronic kidney disease, but its direct effect on bone is not clear. The present study investigated the effect of chronic exposure to low (100 mg/kg b.w.; 100 IS) and high (200 mg/kg b.w.; 200 IS) dose of IS on bone AhR pathway, sirtuins (SIRTs) expression, oxidative DNA damage and bone mineral status in Wistar rats. The accumulation of IS was observed only in trabecular bone tissue in both doses. The differences were observed in the bone parameters, depending on the applied IS dose. The exposure to 100 IS increased AhR repressor (AhRR)-CYP1A2 gene expression, which was associated with SIRT-1, SIRT-3 and SIRT-7 expression. At the low dose group, the oxidative DNA damage marker was unchanged in the bone samples, and it was inversely related to the abovementioned SIRTs expression. In contrast, the exposure to 200 IS reduced the expression of AhRR, CYP1A, SIRT-3 and SIRT-7 genes compared to 100 IS. The level of oxidative DNA damage was higher in trabecular bone in 200 IS group. Femoral bone mineral density was decreased, and inverse relations were noticed between the level of trabecular oxidative DNA damage and parameters of bone mineral status. In conclusion, IS modulates AhR-depending signaling affecting SIRTs expression, oxidative DNA damage and bone mineral status in a dose dependent manner.
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Affiliation(s)
- Malgorzata Karbowska
- Department of Pharmacodynamics, Medical University of Bialystok, Białystok, Poland.
| | - Krystyna Pawlak
- Department of Monitored Pharmacotherapy, Medical University of Bialystok, Białystok, Poland
| | - Beata Sieklucka
- Department of Pharmacodynamics, Medical University of Bialystok, Białystok, Poland
| | - Tomasz Domaniewski
- Department of Monitored Pharmacotherapy, Medical University of Bialystok, Białystok, Poland
| | - Urszula Lebkowska
- Department of Radiology, Medical University of Bialystok, Białystok, Poland
| | - Radoslaw Zawadzki
- Department of Radiology, Medical University of Bialystok, Białystok, Poland
| | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Białystok, Poland
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6
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Zhang T, Wang L, Duan X, Niu Y, Li M, Yun L, Sun H, Ma Y, Guo Y. Sirtuins mediate mitochondrial quality control mechanisms: a novel therapeutic target for osteoporosis. Front Endocrinol (Lausanne) 2024; 14:1281213. [PMID: 38264287 PMCID: PMC10805026 DOI: 10.3389/fendo.2023.1281213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/01/2023] [Indexed: 01/25/2024] Open
Abstract
Mitochondria plays a role in cell differentiation and apoptosis processes. Maintaining mitochondrial function is critical, and this involves various aspects of mitochondrial quality control such as protein homeostasis, biogenesis, dynamics, and mitophagy. Osteoporosis, a metabolic bone disorder, primarily arises from two factors: the dysregulation between lipogenic and osteogenic differentiation of aging bone marrow mesenchymal stem cells, and the imbalance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption. Mitochondrial quality control has the potential to mitigate or even reverse the effects. Among the Sirtuin family, consisting of seven Sirtuins (SIRT1-7), SIRT1-SIRT6 play a crucial role in maintaining mitochondrial quality control. Additionally, SIRT1, SIRT3, SIRT6, and SIRT7 are directly involved in normal bone development and homeostasis by modulating bone cells. However, the precise mechanism by which these Sirtuins exert their effects remains unclear. This article reviews the impact of various aspects of mitochondrial quality control on osteoporosis, focusing on how SIRT1, SIRT3, and SIRT6 can improve osteoporosis by regulating mitochondrial protein homeostasis, biogenesis, and mitophagy. Furthermore, we provide an overview of the current state of clinical and preclinical drugs that can activate Sirtuins to improve osteoporosis. Specific Sirtuin-activating compounds are effective, but further studies are needed. The findings of this study may offer valuable insights for future research on osteoporosis and the development of clinical prevention and therapeutic target strategies.
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Affiliation(s)
- Tianchi Zhang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lining Wang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiping Duan
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuanyuan Niu
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Muzhe Li
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Li Yun
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Haitao Sun
- Department of Orthopedic, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Yong Ma
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Traumatology and Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yang Guo
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Traumatology and Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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7
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Xu K, Li J, Wen R, Chang B, Cheng Y, Yi X. Role of SIRT3 in bone homeostasis and its application in preventing and treating bone diseases. Front Pharmacol 2023; 14:1248507. [PMID: 38192409 PMCID: PMC10773770 DOI: 10.3389/fphar.2023.1248507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/11/2023] [Indexed: 01/10/2024] Open
Abstract
Bone homeostasis refers to the balance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption and the maintenance of stable bone mass. SIRT3 is a class of mitochondrial protein deacetylase that influences various mitochondrial functions and is involved in the mechanisms underlying resistance to aging; regulation of bone marrow mesenchymal stem cells, osteoblasts, and osteoclasts; and development of osteoporosis, osteoarthritis, and other bone diseases. Moreover, exercise affects bones through SIRT3. Thus, studies on SIRT3 may provide insights for the treatment of bone diseases. Although SIRT3 can exert multiple effects on bone, the specific mechanism by which it regulates bone homeostasis remains unclear. By evaluating the relevant literature, this review discusses the structure and function of SIRT3, reveals the role and associated mechanisms of SIRT3 in regulating bone homeostasis and mediating bone health during exercise, and highlights the potential pharmacological value of SIRT3 in treating bone diseases.
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Affiliation(s)
- Ke Xu
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Jing Li
- School of Physical Education, Liaoning Normal University, Dalian, China
| | - Ruiming Wen
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Bo Chang
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Yang Cheng
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Xuejie Yi
- School of Sports Health, Shenyang Sport University, Shenyang, China
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8
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Azzam HN, El-Derany MO, Wahdan SA, Faheim RM, Helal GK, El-Demerdash E. The role of mitochondrial/metabolic axis in development of tamoxifen resistance in breast cancer. Hum Cell 2023; 36:1877-1886. [PMID: 37646973 PMCID: PMC10587280 DOI: 10.1007/s13577-023-00977-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 08/20/2023] [Indexed: 09/01/2023]
Abstract
Only a few investigations, to our knowledge, have examined the bioenergetics of Tamoxifen (TMX) resistant individuals and reported altered mitochondrial activity and metabolic profile. The primary cause of TMX resistance is firmly suggested to be metabolic changes. Metabolic variations and hypoxia have also been linked in a bidirectional manner. Increased hypoxic levels correlate with early recurrence and proliferation and have a negative therapeutic impact on breast cancer (BC) patients. Hypoxia, carcinogenesis, and patient death are all correlated, resulting in more aggressive traits, a higher chance of metastasis, and TMX resistance. Consequently, we sought to investigate the possible role of the metabolic/hypoxial axis Long non-coding RNA (LncRNA) Taurine up-regulated 1 (TUG-1), Micro-RNA 186-5p (miR-186), Sirtuin-3 (SIRT3), Peroxisome Proliferator Activator Receptor alpha (PPAR-α), and Hypoxia-Inducible Factor-1 (HIF-1) in the development of TMX resistance in BC patients and to correlate this axis with tumor progression. Interestingly, this will be the first time to explore epigenetic regulation of this axis in BC.
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Affiliation(s)
- Hany N Azzam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Heliopolis University, Cairo, Egypt
| | - Marwa O El-Derany
- Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Reham M Faheim
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Gouda K Helal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Heliopolis University, Cairo, Egypt
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
- Preclinical & Translational Research Center, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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9
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Ramser A, Hawken R, Greene E, Okimoto R, Flack B, Christopher CJ, Campagna SR, Dridi S. Bone Metabolite Profile Differs between Normal and Femur Head Necrosis (FHN/BCO)-Affected Broilers: Implications for Dysregulated Metabolic Cascades in FHN Pathophysiology. Metabolites 2023; 13:metabo13050662. [PMID: 37233703 DOI: 10.3390/metabo13050662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/28/2023] [Accepted: 04/30/2023] [Indexed: 05/27/2023] Open
Abstract
Femur head necrosis (FHN), also known as bacterial chondronecrosis with osteomyelitis (BCO), has remained an animal welfare and production concern for modern broilers regardless of efforts to select against it in primary breeder flocks. Characterized by the bacterial infection of weak bone, FHN has been found in birds without clinical lameness and remains only detectable via necropsy. This presents an opportunity to utilize untargeted metabolomics to elucidate potential non-invasive biomarkers and key causative pathways involved in FHN pathology. The current study used ultra-performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS) and identified a total of 152 metabolites. Mean intensity differences at p < 0.05 were found in 44 metabolites, with 3 significantly down-regulated and 41 up-regulated in FHN-affected bone. Multivariate analysis and a partial least squares discriminant analysis (PLS-DA) scores plot showed the distinct clustering of metabolite profiles from FHN-affected vs. normal bone. Biologically related molecular networks were predicted using an ingenuity pathway analysis (IPA) knowledge base. Using a fold-change cut off of -1.5 and 1.5, top canonical pathways, networks, diseases, molecular functions, and upstream regulators were generated using the 44 differentially abundant metabolites. The results showed the metabolites NAD+, NADP+, and NADH to be downregulated, while 5-Aminoimidazole-4-carboxamide ribonucleotide (AICAR) and histamine were significantly increased in FHN. Ascorbate recycling and purine nucleotides degradation were the top canonical pathways, indicating the potential dysregulation of redox homeostasis and osteogenesis. Lipid metabolism and cellular growth and proliferation were some of the top molecular functions predicted based on the metabolite profile in FHN-affected bone. Network analysis showed significant overlap across metabolites and predicted upstream and downstream complexes, including AMP-activated protein kinase (AMPK), insulin, collagen type IV, mitochondrial complex, c-Jun N-terminal kinase (Jnk), extracellular signal-regulated kinase (ERK), and 3β-hydroxysteroid dehydrogenase (3β HSD). The qPCR analysis of relevant factors showed a significant decrease in AMPKα2 mRNA expression in FHN-affected bone, supporting the predicted downregulation found in the IPA network analysis. Taken as a whole, these results demonstrate a shift in energy production, bone homeostasis, and bone cell differentiation that is distinct in FHN-affected bone, with implications for how metabolites drive the pathology of FHN.
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Affiliation(s)
- Alison Ramser
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA
| | | | - Elizabeth Greene
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ron Okimoto
- Cobb-Vantress, Siloam Springs, AR 72761, USA
| | | | | | - Shawn R Campagna
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996, USA
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee at Knoxville, Knoxville, TN 37996, USA
| | - Sami Dridi
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA
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10
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Xu K, Zhang L, Yu N, Ren Z, Wang T, Zhang Y, Zhao X, Yu T. Effects of advanced glycation end products (AGEs) on the differentiation potential of primary stem cells: a systematic review. Stem Cell Res Ther 2023; 14:74. [PMID: 37038234 PMCID: PMC10088298 DOI: 10.1186/s13287-023-03324-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 03/27/2023] [Indexed: 04/12/2023] Open
Abstract
The formation and accumulation of advanced glycation end products (AGEs) have been associated with aging and the development, or worsening, of many degenerative diseases, such as atherosclerosis, chronic kidney disease, and diabetes. AGEs can accumulate in a variety of cells and tissues, and organs in the body, which in turn induces oxidative stress and inflammatory responses and adversely affects human health. In addition, under abnormal pathological conditions, AGEs create conditions that are not conducive to stem cell differentiation. Moreover, an accumulation of AGEs can affect the differentiation of stem cells. This, in turn, leads to impaired tissue repair and further aggravation of diabetic complications. Therefore, this systematic review clearly outlines the effects of AGEs on cell differentiation of various types of primary isolated stem cells and summarizes the possible regulatory mechanisms and interventions. Our study is expected to reveal the mechanism of tissue damage caused by the diabetic microenvironment from a cellular and molecular point of view and provide new ideas for treating complications caused by diabetes.
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Affiliation(s)
- Kuishuai Xu
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Liang Zhang
- Department of Abdominal Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Ning Yu
- Department of Abdominal Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Zhongkai Ren
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Tianrui Wang
- Department of Traumatology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Yingze Zhang
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Xia Zhao
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China.
| | - Tengbo Yu
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China.
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11
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Chen Y, Sun Y, Xue X, Ma H. Comprehensive analysis of epigenetics mechanisms in osteoporosis. Front Genet 2023; 14:1153585. [PMID: 37056287 PMCID: PMC10087084 DOI: 10.3389/fgene.2023.1153585] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
Epigenetic modification pertains to the alteration of genetic-expression, which could be transferred to the next generations, without any alteration in the fundamental DNA sequence. Epigenetic modification could include various processes such as DNA methylation, histone alteration, non-coding RNAs (ncRNAs), and chromatin adjustment are among its primary operations. Osteoporosis is a metabolic disorder that bones become more fragile due to the decrease in mineral density, which could result in a higher risk of fracturing. Recently, as the investigation of the causal pathology of osteoporosis has been progressed, remarkable improvement has been made in epigenetic research. Recent literatures have illustrated that epigenetics is estimated to be one of the most contributing factors to the emergence and progression of osteoporosis. This dissertation primarily focuses on indicating the research progresses of epigenetic mechanisms and also the regulation of bone metabolism and the pathogenesis of osteoporosis in light of the significance of epigenetic mechanisms. In addition, it aims to provide new intelligence for the treatment of diseases related to bone metabolism.
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Affiliation(s)
- Yuzhu Chen
- The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yumiao Sun
- The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiangyu Xue
- Harbin Medical University, Harbin, Heilongjiang, China
| | - Huanzhi Ma
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Huanzhi Ma,
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12
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Strategies of Macrophages to Maintain Bone Homeostasis and Promote Bone Repair: A Narrative Review. J Funct Biomater 2022; 14:jfb14010018. [PMID: 36662065 PMCID: PMC9864083 DOI: 10.3390/jfb14010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/17/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
Bone homeostasis (a healthy bone mass) is regulated by maintaining a delicate balance between bone resorption and bone formation. The regulation of physiological bone remodeling by a complex system that involves multiple cells in the skeleton is closely related to bone homeostasis. Loss of bone mass or repair of bone is always accompanied by changes in bone homeostasis. However, due to the complexity of bone homeostasis, we are currently unable to identify all the mechanisms that affect bone homeostasis. To date, bone macrophages have been considered a third cellular component in addition to osteogenic spectrum cells and osteoclasts. As confirmed by co-culture models or in vivo experiments, polarized or unpolarized macrophages interact with multiple components within the bone to ensure bone homeostasis. Different macrophage phenotypes are prone to resorption and formation of bone differently. This review comprehensively summarizes the mechanisms by which macrophages regulate bone homeostasis and concludes that macrophages can control bone homeostasis from osteoclasts, mesenchymal cells, osteoblasts, osteocytes, and the blood/vasculature system. The elaboration of these mechanisms in this narrative review facilitates the development of macrophage-based strategies for the treatment of bone metabolic diseases and bone defects.
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13
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Daphnetin Alleviates Senile and Disuse Osteoporosis by Distinct Modulations of Bone Formation and Resorption. Antioxidants (Basel) 2022; 11:antiox11122365. [PMID: 36552574 PMCID: PMC9774389 DOI: 10.3390/antiox11122365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Senile and disuse osteoporosis have distinct bone turnover status and lack effective treatments. In this study, senescence-accelerated mouse prone 8 (SAMP8) and hindlimb unloading mouse models were used to explore the protective effects of daphnetin on these two types of osteoporosis, and primary osteoblasts and bone marrow monocyte-derived osteoclasts, as well as pre-osteoblast MC3T3-E1, and osteoclast precursor RAW264.7 cells were used to investigate the underlying mechanisms. The results showed that daphnetin administration effectively improved bone remodeling in both senile and disuse osteoporosis, but with different mechanisms. In senile osteoporosis with low bone turnover, daphnetin inhibited NOX2-mediated ROS production in osteoblasts, resulting in accelerated osteogenic differentiation and bone formation, while in disuse osteoporosis with high bone turnover, daphnetin restored SIRT3 expression, maintained mitochondrial homeostasis, and additionally upregulated SOD2 to eliminate ROS in osteoclasts, resulting in attenuation of osteoclast differentiation and bone resorption. These findings illuminated that daphnetin has promising potential for the prevention and treatment of senile and disuse osteoporosis. The different mechanisms may provide clues and basis for targeted prevention and treatment of osteoporosis according to distinct bone turnover status.
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14
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Li Y, Li F. Mechanism and Prospect of Gastrodin in Osteoporosis, Bone Regeneration, and Osseointegration. Pharmaceuticals (Basel) 2022; 15:1432. [PMID: 36422561 PMCID: PMC9698149 DOI: 10.3390/ph15111432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/08/2022] [Accepted: 11/16/2022] [Indexed: 11/14/2023] Open
Abstract
Gastrodin, a traditional Chinese medicine ingredient, is widely used to treat vascular and neurological diseases. However, recently, an increasing number of studies have shown that gastrodin has anti-osteoporosis effects, and its mechanisms of action include its antioxidant effect, anti-inflammatory effect, and anti-apoptotic effect. In addition, gastrodin has many unique advantages in promoting bone healing in tissue engineering, such as inducing high hydrophilicity in the material surface, its anti-inflammatory effect, and pro-vascular regeneration. Therefore, this paper summarized the effects and mechanisms of gastrodin on osteoporosis and bone regeneration in the current research. Here we propose an assumption that the use of gastrodin in the surface loading of oral implants may greatly promote the osseointegration of implants and increase the success rate of implants. In addition, we speculated on the potential mechanisms of gastrodin against osteoporosis, by affecting actin filament polymerization, renin-angiotensin system (RAS) and ferroptosis, and proposed that the potential combination of gastrodin with Mg2+, angiotensin type 2 receptor blockers or artemisinin may greatly inhibit osteoporosis. The purpose of this review is to provide a reference for more in-depth research and application of gastrodin in the treatment of osteoporosis and implant osseointegration in the future.
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Affiliation(s)
| | - Fenglan Li
- Department of Prosthodontics, Shanxi Provincial People’s Hospital, Shanxi Medical University, Taiyuan 030000, China
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15
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Pan Z, Dong H, Huang N, Fang J. Oxidative stress and inflammation regulation of sirtuins: New insights into common oral diseases. Front Physiol 2022; 13:953078. [PMID: 36060706 PMCID: PMC9437461 DOI: 10.3389/fphys.2022.953078] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/29/2022] [Indexed: 12/22/2022] Open
Abstract
Sirtuins are a family of nicotinamide adenine dinucleotide (NAD)+-dependent histone deacetylases, comprising seven members SIRT1-SIRT7. Sirtuins have been extensively studied in regulating ageing and age-related diseases. Sirtuins are also pivotal modulators in oxidative stress and inflammation, as they can regulate the expression and activation of downstream transcriptional factors (such as Forkhead box protein O3 (FOXO3a), nuclear factor erythroid 2-related factor 2 (Nrf2) and nuclear factor-kappa B (NF-κB)) as well as antioxidant enzymes, through epigenetic modification and post-translational modification. Most importantly, studies have shown that aberrant sirtuins are involved in the pathogenesis of infectious and inflammatory oral diseases, and oral cancer. In this review, we provide a comprehensive overview of the regulatory patterns of sirtuins at multiple levels, and the essential roles of sirtuins in regulating inflammation, oxidative stress, and bone metabolism. We summarize the involvement of sirtuins in several oral diseases such as periodontitis, apical periodontitis, pulpitis, oral candidiasis, oral herpesvirus infections, dental fluorosis, and oral cancer. At last, we discuss the potential utilization of sirtuins as therapeutic targets in oral diseases.
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Affiliation(s)
- Zijian Pan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hao Dong
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ning Huang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Fang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Jie Fang,
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16
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Feng Q. Gastrodin attenuates lipopolysaccharide‑induced inflammation and oxidative stress, and promotes the osteogenic differentiation of human periodontal ligament stem cells through enhancing sirtuin3 expression. Exp Ther Med 2022; 23:296. [PMID: 35340880 PMCID: PMC8931632 DOI: 10.3892/etm.2022.11225] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 07/14/2021] [Indexed: 11/05/2022] Open
Affiliation(s)
- Qiujing Feng
- Department of Stomatology, Xingyi People's Hospital, Xingyi, Guizhou 562400, P.R. China
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17
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Abstract
SIRT3 is an NAD+-dependent deacetylase in the mitochondria with an extensive ability to regulate mitochondrial morphology and function. It has been reported that SIRT3 participates in the occurrence and development of many aging-related diseases. Osteoporosis is a common aging-related disease characterized by decreased bone mass and fragility fractures, which has caused a huge burden on society. Current research shows that SIRT3 is involved in the physiological processes of senescence of bone marrow mesenchymal stem cells (BMSCs), differentiation of BMSCs and osteoclasts. However, the specific effects and mechanisms of SIRT3 in osteoporosis are not clear. In the current review, we elaborated on the physiological functions of SIRT3, the cell types involved in bone remodeling, and the role of SIRT3 in osteoporosis. Furthermore, it also provided a theoretical basis for SIRT3 as a therapeutic target for osteoporosis.
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Affiliation(s)
- Siwang Hu
- The Orthopaedic Center, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
| | - Shuangshuang Wang
- Department of Cardiology, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
- *Correspondence: Shuangshuang Wang,
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18
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Chen L, Wang BZ, Xie J, Zhang RY, Jin C, Chen WK, Fang KH, Hong CX, Xu TH, Huang CB, Yang L, Weng SJ. Therapeutic effect of SIRT3 on glucocorticoid-induced osteonecrosis of the femoral head via intracellular oxidative suppression. Free Radic Biol Med 2021; 176:228-240. [PMID: 34260898 DOI: 10.1016/j.freeradbiomed.2021.07.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/22/2021] [Accepted: 07/07/2021] [Indexed: 12/11/2022]
Abstract
Glucocorticoid-induced osteonecrosis of the femoral head (GIONFH) is a serious complication after long-term or excess administration of clinical glucocorticoids intervention, and the pathogenic mechanisms underlying have not been clarified yet. Oxidative stress is considered as a major cause of bone homeostasis disorder. This study is aimed to explore the potential relevance between SIRT3 and GIONFH, as well as the effect of resveratrol, which has been reported for its role in SIRT3 activation, on dexamethasone-induced oxidative stress and mitochondrial compromise in bone marrow stem cells (BMSCs). In this study, our data showed that SIRT3 level was declined in GIONFH rat femoral head, corresponding to a resultant decrease of SIRT3 expression in dexamethasone-treated BMSCs in vitro. We also found that dexamethasone could result in oxidative injury in BMSCs, and resveratrol treatment reduced this deleterious effect via a SIRT3-dependent manner. Moreover, our results demonstrated that rewarding effect of resveratrol on BMSCs osteogenic differentiation was via activation of AMPK/PGC-1α/SIRT3 axis. Meanwhile, resveratrol administration prevented the occurrence of GIONFH, enhanced SIRT3 expression and reduced oxidative level in GIONFH model rats. Therefore, our study provides basic evidence that SIRT3 may be a promising therapeutic target for GIONFH treatment and resveratrol could be an ideal agent for clinical uses.
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Affiliation(s)
- Liang Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Bing-Zhang Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Jun Xie
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Ri-Yan Zhang
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, 325000, China
| | - Chen Jin
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Wei-Kai Chen
- School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Kang-Hao Fang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Chen-Xuan Hong
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Tian-Hao Xu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Cheng-Bin Huang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China
| | - Lei Yang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China; School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, 325000, China.
| | - She-Ji Weng
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China.
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19
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He W, Huang J, Liu Y, Xie C, Zhang K, Zhu X, Chen J, Huang H. Deletion of soluble epoxide hydrolase suppressed chronic kidney disease-related vascular calcification by restoring Sirtuin 3 expression. Cell Death Dis 2021; 12:992. [PMID: 34689162 PMCID: PMC8542048 DOI: 10.1038/s41419-021-04283-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 09/26/2021] [Accepted: 10/04/2021] [Indexed: 11/09/2022]
Abstract
Vascular calcification is common in chronic kidney disease (CKD) and contributes to cardiovascular disease (CVD) without any effective therapies available up to date. The expression of soluble epoxide hydrolase (sEH) is different in patients with and without vascular calcification. The present study investigates the role of sEH as a potential mediator of vascular calcification in CKD. Both Ephx2−/− and wild-type (WT) mice fed with high adenine and phosphate (AP) diet were used to explore the vascular calcification in CKD. Compared with WT, deletion of sEH inhibited vascular calcification induced by AP. sEH deletion also abolished high phosphorus (Pi)-induced phenotypic transition of vascular smooth muscle cells (VSMCs) independent of its epoxyeicosatrienoic acids (EETs) hydrolysis. Further gene expression analysis identified the potential role of Sirtuin 3 (Sirt3) in the sEH-regulated VSMC calcification. Under high Pi treatment, sEH interacted with Sirt3, which might destabilize Sirt3 and accelerate the degradation of Sirt3. Deletion of sEH may preserve the expression of Sirt3, and thus maintain the mitochondrial adenosine triphosphate (ATP) synthesis and morphology, significantly suppressing VSMC calcification. Our data supported that sEH deletion inhibited vascular calcification and indicated a promising target of sEH inhibition in vascular calcification prevention.
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Affiliation(s)
- Wanbing He
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang Road, Guangzhou, 510120, China
| | - Jieping Huang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang Road, Guangzhou, 510120, China
| | - Yang Liu
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, 3025 Shennan Middle Road, Shenzhen, 518033, China.,Department of Cardiology, The Second Affiliated Hospital, University of South China, 30 Jiefang Road, Hengyang, 421001, China
| | - Changming Xie
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, 3025 Shennan Middle Road, Shenzhen, 518033, China
| | - Kun Zhang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang Road, Guangzhou, 510120, China
| | - Xinhong Zhu
- Research Center of Brain Health, Pazhou Lab, 70 Anyue Road, Guangzhou, 510330, China
| | - Jie Chen
- Department of Radiotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang Road, Guangzhou, 510120, China
| | - Hui Huang
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, 3025 Shennan Middle Road, Shenzhen, 518033, China.
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20
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Histone Acetylation in the Epigenetic Regulation of Bone Metabolism and Related Diseases. Stem Cells Int 2021; 2021:8043346. [PMID: 34326880 PMCID: PMC8310436 DOI: 10.1155/2021/8043346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/01/2021] [Indexed: 02/05/2023] Open
Abstract
As the earliest studied epigenetic modification, acetylation has been explored a lot through the years. While bone tissue acts as an indispensable part of body, researches aimed at the relationship between the bone and acetylation became necessary. Some environmental factors like diet may affect the metabolism status that some metabolites especially nicotinamide adenine dinucleotide (NAD) were found able to regulate intracellular histone acetylation in bone metabolism. This review focuses on representing the interaction among acetylation, metabolism, and the bone. The results showed that acetylation connects a lot with bone metabolism, while the explorations about related metabolites like acetyl-CoA or different environmental exposures are still limited. Some acetylation-related therapy methods of bone diseases based on metabolic regulation or epigenetic enzymes were also reviewed.
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21
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Zhang J, He Z, Fedorova J, Logan C, Bates L, Davitt K, Le V, Murphy J, Li M, Wang M, Lakatta EG, Ren D, Li J. Alterations in mitochondrial dynamics with age-related Sirtuin1/Sirtuin3 deficiency impair cardiomyocyte contractility. Aging Cell 2021; 20:e13419. [PMID: 34216536 PMCID: PMC8282250 DOI: 10.1111/acel.13419] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/08/2021] [Accepted: 05/24/2021] [Indexed: 12/19/2022] Open
Abstract
Sirtuin1 (SIRT1) and Sirtuin3 (SIRT3) protects cardiac function against ischemia/reperfusion (I/R) injury. Mitochondria are critical in response to myocardial I/R injury as disturbance of mitochondrial dynamics contributes to cardiac dysfunction. It is hypothesized that SIRT1 and SIRT3 are critical components to maintaining mitochondria homeostasis especially mitochondrial dynamics to exert cardioprotective actions under I/R stress. The results demonstrated that deficiency of SIRT1 and SIRT3 in aged (24–26 months) mice hearts led to the exacerbated cardiac dysfunction in terms of cardiac systolic dysfunction, cardiomyocytes contractile defection, and abnormal cardiomyocyte calcium flux during I/R stress. Moreover, the deletion of SIRT1 or SIRT3 in young (4–6 months) mice hearts impair cardiomyocyte contractility and shows aging‐like cardiac dysfunction upon I/R stress, indicating the crucial role of SIRT1 and SIRT3 in protecting myocardial contractility from I/R injury. The biochemical and seahorse analysis showed that the deficiency of SIRT1/SIRT3 leads to the inactivation of AMPK and alterations in mitochondrial oxidative phosphorylation (OXPHOS) that causes impaired mitochondrial respiration in response to I/R stress. Furthermore, the remodeling of the mitochondria network goes together with hypoxic stress, and mitochondria undergo the processes of fusion with the increasing elongated branches during hypoxia. The transmission electron microscope data showed that cardiac SIRT1/SIRT3 deficiency in aging alters mitochondrial morphology characterized by the impairment of mitochondria fusion under I/R stress. Thus, the age‐related deficiency of SIRT1/SIRT3 in the heart affects mitochondrial dynamics and respiration function that resulting in the impaired contractile function of cardiomyocytes in response to I/R.
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Affiliation(s)
- Jingwen Zhang
- College of Life Sciences Shandong Normal University Jinan China
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Zhibin He
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Julia Fedorova
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Cole Logan
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Lauryn Bates
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Kayla Davitt
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Van Le
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Jiayuan Murphy
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Melissa Li
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Mingyi Wang
- Laboratory of Cardiovascular Science Intramural Research Program National Institute on Aging National Institutes of Health Baltimore MD USA
| | - Edward G. Lakatta
- Laboratory of Cardiovascular Science Intramural Research Program National Institute on Aging National Institutes of Health Baltimore MD USA
| | - Di Ren
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Ji Li
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
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22
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Yi SJ, Jang YJ, Kim HJ, Lee K, Lee H, Kim Y, Kim J, Hwang SY, Song JS, Okada H, Park JI, Kang K, Kim K. The KDM4B-CCAR1-MED1 axis is a critical regulator of osteoclast differentiation and bone homeostasis. Bone Res 2021; 9:27. [PMID: 34031372 PMCID: PMC8144413 DOI: 10.1038/s41413-021-00145-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/10/2021] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
Bone undergoes a constant and continuous remodeling process that is tightly regulated by the coordinated and sequential actions of bone-resorbing osteoclasts and bone-forming osteoblasts. Recent studies have shown that histone demethylases are implicated in osteoblastogenesis; however, little is known about the role of histone demethylases in osteoclast formation. Here, we identified KDM4B as an epigenetic regulator of osteoclast differentiation. Knockdown of KDM4B significantly blocked the formation of tartrate-resistant acid phosphatase-positive multinucleated cells. Mice with myeloid-specific conditional knockout of KDM4B showed an osteopetrotic phenotype due to osteoclast deficiency. Biochemical analysis revealed that KDM4B physically and functionally associates with CCAR1 and MED1 in a complex. Using genome-wide chromatin immunoprecipitation (ChIP)-sequencing, we revealed that the KDM4B–CCAR1–MED1 complex is localized to the promoters of several osteoclast-related genes upon receptor activator of NF-κB ligand stimulation. We demonstrated that the KDM4B–CCAR1–MED1 signaling axis induces changes in chromatin structure (euchromatinization) near the promoters of osteoclast-related genes through H3K9 demethylation, leading to NF-κB p65 recruitment via a direct interaction between KDM4B and p65. Finally, small molecule inhibition of KDM4B activity impeded bone loss in an ovariectomized mouse model. Taken together, our findings establish KDM4B as a critical regulator of osteoclastogenesis, providing a potential therapeutic target for osteoporosis.
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Affiliation(s)
- Sun-Ju Yi
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - You-Jee Jang
- Korea Basic Science Institute, Gwangju Center at Chonnam National University, Gwangju, Republic of Korea
| | - Hye-Jung Kim
- New Drug Development Center, KBIO Osong Medical Innovation Foundation, Cheongju, Chungbuk, Republic of Korea
| | - Kyubin Lee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Hyerim Lee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Yeojin Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Junil Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Seon Young Hwang
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Jin Sook Song
- Data Convergence Drug Research Center, Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Hitoshi Okada
- Department of Biochemistry, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Jae-Il Park
- Korea Basic Science Institute, Gwangju Center at Chonnam National University, Gwangju, Republic of Korea
| | - Kyuho Kang
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Kyunghwan Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
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23
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Ling W, Krager K, Richardson KK, Warren AD, Ponte F, Aykin-Burns N, Manolagas SC, Almeida M, Kim HN. Mitochondrial Sirt3 contributes to the bone loss caused by aging or estrogen deficiency. JCI Insight 2021; 6:146728. [PMID: 33878033 PMCID: PMC8262324 DOI: 10.1172/jci.insight.146728] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/14/2021] [Indexed: 12/20/2022] Open
Abstract
Altered mitochondria activity in osteoblasts and osteoclasts has been implicated in the loss of bone mass associated with aging and estrogen deficiency — the 2 most common causes of osteoporosis. However, the mechanisms that control mitochondrial metabolism in bone cells during health or disease remain unknown. The mitochondrial deacetylase sirtuin-3 (Sirt3) has been earlier implicated in age-related diseases. Here, we show that deletion of Sirt3 had no effect on the skeleton of young mice but attenuated the age-related loss of bone mass in both sexes. This effect was associated with impaired bone resorption. Osteoclast progenitors from aged Sirt3-null mice were able to differentiate into osteoclasts, though the differentiated cells exhibited impaired polykaryon formation and resorptive activity, as well as decreased oxidative phosphorylation and mitophagy. The Sirt3 inhibitor LC-0296 recapitulated the effects of Sirt3 deletion in osteoclast formation and mitochondrial function, and its administration to aging mice increased bone mass. Deletion of Sirt3 also attenuated the increase in bone resorption and loss of bone mass caused by estrogen deficiency. These findings suggest that Sirt3 inhibition and the resulting impairment of osteoclast mitochondrial function could be a novel therapeutic intervention for the 2 most important causes of osteoporosis.
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Affiliation(s)
- Wen Ling
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine
| | - Kimberly Krager
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Kimberly K Richardson
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine
| | - Aaron D Warren
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine.,Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, USA
| | - Filipa Ponte
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine
| | - Nukhet Aykin-Burns
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Stavros C Manolagas
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine.,Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, USA.,Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Maria Almeida
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine.,Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, USA.,Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Ha-Neui Kim
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Division of Endocrinology, Department of Internal Medicine.,Central Arkansas Veterans Healthcare System, Little Rock, Arkansas, USA
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Da W, Tao L, Zhu Y. The Role of Osteoclast Energy Metabolism in the Occurrence and Development of Osteoporosis. Front Endocrinol (Lausanne) 2021; 12:675385. [PMID: 34054735 PMCID: PMC8150001 DOI: 10.3389/fendo.2021.675385] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/29/2021] [Indexed: 12/14/2022] Open
Abstract
In recent decades, the mechanism underlying bone metabolic disorders based on energy metabolism has been heavily researched. Bone resorption by osteoclasts plays an important role in the occurrence and development of osteoporosis. However, the mechanism underlying the osteoclast energy metabolism disorder that interferes with bone homeostasis has not been determined. Bone resorption by osteoclasts is a process that consumes large amounts of adenosine triphosphate (ATP) produced by glycolysis and oxidative phosphorylation. In addition to glucose, fatty acids and amino acids can also be used as substrates to produce energy through oxidative phosphorylation. In this review, we summarize and analyze the energy-based phenotypic changes, epigenetic regulation, and coupling with systemic energy metabolism of osteoclasts during the development and progression of osteoporosis. At the same time, we propose a hypothesis, the compensatory recovery mechanism (involving the balance between osteoclast survival and functional activation), which may provide a new approach for the treatment of osteoporosis.
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Affiliation(s)
| | - Lin Tao
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, China
| | - Yue Zhu
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, China
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Buccoliero C, Dicarlo M, Pignataro P, Gaccione F, Colucci S, Colaianni G, Grano M. The Novel Role of PGC1α in Bone Metabolism. Int J Mol Sci 2021; 22:ijms22094670. [PMID: 33925111 PMCID: PMC8124835 DOI: 10.3390/ijms22094670] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/19/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) is a protein that promotes transcription of numerous genes, particularly those responsible for the regulation of mitochondrial biogenesis. Evidence for a key role of PGC1α in bone metabolism is very recent. In vivo studies showed that PGC1α deletion negatively affects cortical thickness, trabecular organization and resistance to flexion, resulting in increased risk of fracture. Furthermore, in a mouse model of bone disease, PGC1α activation stimulates osteoblastic gene expression and inhibits atrogene transcription. PGC1α overexpression positively affects the activity of Sirtuin 3, a mitochondrial nicotinammide adenina dinucleotide (NAD)-dependent deacetylase, on osteoblastic differentiation. In vitro, PGC1α overexpression prevents the reduction of mitochondrial density, membrane potential and alkaline phosphatase activity caused by Sirtuin 3 knockdown in osteoblasts. Moreover, PGC1α influences the commitment of skeletal stem cells towards an osteogenic lineage, while negatively affects marrow adipose tissue accumulation. In this review, we will focus on recent findings about PGC1α action on bone metabolism, in vivo and in vitro, and in pathologies that cause bone loss, such as osteoporosis and type 2 diabetes.
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Affiliation(s)
- Cinzia Buccoliero
- Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; (C.B.); (P.P.); (F.G.); (G.C.)
| | - Manuela Dicarlo
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari, 70124 Bari, Italy; (M.D.); (S.C.)
| | - Patrizia Pignataro
- Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; (C.B.); (P.P.); (F.G.); (G.C.)
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari, 70124 Bari, Italy; (M.D.); (S.C.)
| | - Francesco Gaccione
- Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; (C.B.); (P.P.); (F.G.); (G.C.)
| | - Silvia Colucci
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari, 70124 Bari, Italy; (M.D.); (S.C.)
| | - Graziana Colaianni
- Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; (C.B.); (P.P.); (F.G.); (G.C.)
| | - Maria Grano
- Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; (C.B.); (P.P.); (F.G.); (G.C.)
- Correspondence:
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Allegra A, Innao V, Polito F, Oteri R, Alibrandi A, Allegra AG, Oteri G, Di Giorgio RM, Musolino C, Aguennouz M. SIRT2 and SIRT3 expression correlates with redox imbalance and advanced clinical stage in patients with multiple myeloma. Clin Biochem 2021; 93:42-49. [PMID: 33861984 DOI: 10.1016/j.clinbiochem.2021.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 03/29/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Sirtuins comprise seven family elements (SIRT1-7) involved in various cell signalling pathways comprising cancer inhibition and tumorigenesis. The present study aims to evaluate SIRT2 and SIRT3 gene expression and potential redox reactions in patients with multiple myeloma (MM) at onset and its correlation with disease status, extent and presence of organ damage secondary to myeloma. DESIGN & METHODS Total RNA was extracted from 17 MM patients and 10 controls to assess gene expression using real-time PCR. The NAD+/NADH ratio as well as the levels of glutathione peroxidase (GPx) and hydrogen peroxide (HP) in peripheral blood mononuclear cells (PBMCs) were determined using established biochemical assays. RESULTS SIRT2 and SIRT3 expression is reduced in MM patients compared to healthy controls. Correlational analysis demonstrated that SIRT2 reduction is associated with advanced clinical stage and with more advanced bone lesions than in the remaining patients. SIRT3 expression is correlated with lytic bone lesions. Biochemical analysis indicated an imbalance of oxidative stress biomarkers with low concentrations of the antioxidant enzyme GPx, low amounts of NAD + and higher concentrations of pro-oxidant enzyme HP in PBMCs of MM patients compared to controls. Moreover, MM patients with bone lesions had lower concentrations of NAD + and GPx in PBMCs than patients without signs of bone disease. In addition, MM patients had higher quantities of intracellular HP than controls. CONCLUSIONS Our results demonstrate that SIRT2 and SIRT3 are downregulated in MM and that lower concentrations correlate with an advanced stage of disease and redox imbalance. We conclude that SIRT2 and SIRT3 together with oxidative stress biomarkers, may be useful for improved risk stratification of MM patients.
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Affiliation(s)
- Alessandro Allegra
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Division of Haematology, University of Messina, Messina, Italy.
| | - Vanessa Innao
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Division of Haematology, University of Messina, Messina, Italy
| | - Francesca Polito
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Italy
| | - Rosaria Oteri
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Angela Alibrandi
- Department of Economics, Unit of Statistical and Mathematical Sciences, University of Messina, Messina, Italy
| | - Andrea Gaetano Allegra
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Division of Haematology, University of Messina, Messina, Italy
| | - Giacomo Oteri
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Italy
| | - Rosa Maria Di Giorgio
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Caterina Musolino
- Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", Division of Haematology, University of Messina, Messina, Italy
| | - M'hammed Aguennouz
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
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Zhang H, Wang A, Shen G, Wang X, Liu G, Yang F, Chen B, Wang M, Xu Y. Hepcidin-induced reduction in iron content and PGC-1β expression negatively regulates osteoclast differentiation to play a protective role in postmenopausal osteoporosis. Aging (Albany NY) 2021; 13:11296-11314. [PMID: 33820875 PMCID: PMC8109081 DOI: 10.18632/aging.202817] [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: 09/19/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022]
Abstract
As a necessary trace element, iron is involved in many physiological processes. Clinical and basic studies have found that disturbances in iron metabolism, especially iron overload, might lead to bone loss and even be involved in postmenopausal osteoporosis. Hepcidin is a key regulator of iron homeostasis. However, the exact role of hepcidin in bone metabolism and the underlying mechanism remain unknown. In this study, we found that in postmenopausal osteoporosis cohort, the concentration of hepcidin in the serum was significantly reduced and positively correlated with bone mineral density. Ovariectomized (OVX) mice were then used to construct an osteoporosis model. Hepcidin overexpression in these mice significantly improved bone mass and rescued the phenotype of bone loss. Additionally, overexpression of hepcidin in OVX mice greatly reduced the number and differentiation of osteoclasts in vivo and in vitro. This study found that overexpression of hepcidin significantly inhibited ROS production, mitochondrial biogenesis, and PGC-1β expression. These data showed that hepcidin protected osteoporosis by reducing iron levels in bone tissue, and in conjunction with PGC-1β, reduced ROS production and the number of mitochondria, thus inhibiting osteoclast differentiation and bone absorption. Hepcidin could provide new targets for the clinical treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Hui Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Aifei Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Guangsi Shen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Xiao Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Gongwen Liu
- Department of Orthopaedics, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215004, China
| | - Fan Yang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Bin Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Mingyong Wang
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Youjia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
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Li N, Li X, Zheng K, Bai J, Zhang W, Sun H, Ge G, Wang W, Wang Z, Gu Y, Xue Y, Xu Y, Geng D, Zhou J. Inhibition of Sirtuin 3 prevents titanium particle-induced bone resorption and osteoclastsogenesis via suppressing ERK and JNK signaling. Int J Biol Sci 2021; 17:1382-1394. [PMID: 33867853 PMCID: PMC8040473 DOI: 10.7150/ijbs.53992] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 03/20/2021] [Indexed: 12/12/2022] Open
Abstract
Implant-derived wear particles can be phagocytosed by local macrophages, triggering an inflammatory cascade that can drive the activation and recruitment of osteoclasts, thereby inducing peri-prosthetic osteolysis. Efforts to suppress pro-inflammatory cytokine release and osteoclastsogenesis thus represent primary approaches to treating and preventing such osteolysis. Sirtuin 3 (SIRT3) is a NAD+-dependent deacetylases that control diverse metabolic processes. However, whether SIRT3 could mitigate wear debris-induced osteolysis has not been reported. Herein we explored the impact of the SIRT3 on titanium particle-induced osteolysis. Tartrate resistant acid phosphatase (TRAP) staining revealed that the inhibition of SIRT3 suppressed nuclear factor-κB ligand (RANKL)-mediated osteoclasts activation in a dose-dependent fashion. Notably, inhibition of SIRT3 also suppressed matrix metallopeptidase 9 (MMP9) and nuclear factor of activated T‐cell cytoplasmic 1 (NFATc1) expression at the mRNA and protein levels, while also inhibiting the mRNA expression of dendritic cell-specific transmembrane protein (DC-STAMP), ATPase H+ Transporting V0 Subunit D2 (Atp6v0d2), TRAP and Cathepsin K (CTSK) . In addition, inhibition of SIRT3 suppressed titanium particle-induced tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β) and interleukin-6 (IL-6) expression and prevented titanium particle-induced osteolysis and bone loss in vivo. This inhibition of osteoclasts differentiation was found to be linked to the downregulation and reduced phosphorylation of JNK and ERK. Taken together, inhibition of SIRT3 may be a potential target for titanium particle-induced bone loss.
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Affiliation(s)
- Ning Li
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Xiaoping Li
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Kai Zheng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Jiaxiang Bai
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Weicheng Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Houyi Sun
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Gaoran Ge
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Wei Wang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Zhen Wang
- Department of Orthopaedics, Suzhou Kowloon Hospital Shanghai Jiao Tong University School of Medicine, Suzhou, Jiangsu 215006, China
| | - Ye Gu
- Department of Orthopedics, Soochow University Affiliated First People's, Hospital of Changshou City, Changshu, Jiangsu 215500, China
| | - Yi Xue
- Department of Orthopaedics, Changshu Hospital Affiliated to Nanjing University of Traditional Chinese Medicine, Suzhou, Jiangsu 215500, China
| | - Yaozeng Xu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Dechun Geng
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
| | - Jun Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu 215006, China
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Protective effects of sirtuin 3 on titanium particle-induced osteogenic inhibition by regulating the NLRP3 inflammasome via the GSK-3β/β-catenin signalling pathway. Bioact Mater 2021; 6:3343-3357. [PMID: 33817415 PMCID: PMC8005659 DOI: 10.1016/j.bioactmat.2021.02.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023] Open
Abstract
Periprosthetic osteolysis (PPO) remains the key factor in implant failure and subsequent revision surgery and is mainly triggered by wear particles. Previous studies have shown that inhibition of osteoblastic differentiation is the most widespread incident affecting the interface of trabecular and loosening prostheses. Additionally, the NLRP3 inflammasome is activated by prosthetic particles. Sirtuin3, an NAD+-dependent deacetylase of mitochondria, regulates the function of mitochondria in diverse activities. However, whether SIRT3 can mitigate wear debris-induced osteolysis by inhibiting the NLRP3 inflammasome and enhancing osteogenesis has not been previously reported. Therefore, we investigated the role of SIRT3 during the process of titanium (Ti) particle-induced osteolysis. We revealed that upregulated SIRT3 dramatically attenuated Ti particle-induced osteogenic inhibition through suppression of the NLRP3 inflammasome and improvement of osteogenesis in vivo and in vitro. Moreover, we found that SIRT3 interference in the process of Ti particle-induced osteolysis relied on the GSK-3β/β-catenin signalling pathway. Collectively, these findings indicated that SIRT3 may serve as a rational new treatment against debris-induced PPO by deacetylase-dependent inflammasome attenuation. Effect of SIRT3 on rescued wear particles-induced osteogenic inhibition. Effect of SIRT3 on inhibited the activation of pyroptosis-related NLRP3 inflammasome. Effect of SIRT3 on mitigated periprosthetic osteolysis via GSK-3β/β-catenin signaling.
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Targeting reactive oxygen species in stem cells for bone therapy. Drug Discov Today 2021; 26:1226-1244. [PMID: 33684524 DOI: 10.1016/j.drudis.2021.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 12/04/2020] [Accepted: 03/02/2021] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) have emerged as key players in regulating the fate and function of stem cells from both non-hematopoietic and hematopoietic lineages in bone marrow, and thus affect the osteoblastogenesis-osteoclastogenesis balance and bone homeostasis. Accumulating evidence has linked ROS and associated oxidative stress with the progression of bone disorders, and ROS-based therapeutic strategies have appeared to achieve favorable outcomes in bone. We review current knowledge of the multifactorial roles and mechanisms of ROS as a target in bone pathology. In addition, we discuss emerging ROS-based therapeutic strategies that show potential for bone therapy. Finally, we highlight the opportunities and challenges facing ROS-targeted stem cell therapeutics for improving bone health.
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Li Q, Wang H, Zhang J, Kong APS, Li G, Lam TP, Cheng JCY, Lee WYW. Deletion of SIRT3 inhibits osteoclastogenesis and alleviates aging or estrogen deficiency-induced bone loss in female mice. Bone 2021; 144:115827. [PMID: 33359008 DOI: 10.1016/j.bone.2020.115827] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/27/2020] [Accepted: 12/17/2020] [Indexed: 11/21/2022]
Abstract
SIRT3 has been speculated to affect osteoclast activity through its important roles in regulating mitochondrial function. It remains unclear whether SIRT3 affects osteoclast activity in female mice which is relevant to postmenopausal osteoporosis. We hypothesized that deletion of SIRT3 could modulate bone remodeling in female mice under physiological aging process or ovariectomy (OVX)-induced bone loss. We found that SIRT3 level was markedly increased in primary bone marrow-derived macrophages (BMMs) from both 26-month-old aged mice and OVX mice. Knockdown of SIRT3 in vitro inhibited osteoclast differentiation and mitochondrial biogenesis, and deletion of SIRT3 increased trabecular bone mass in female mice due to impaired osteoclastogenesis. The effect of SIRT3 on bone remodeling appears to be age-dependent as revealed by comparing the effect of SIRT3 deletion on 5-week-old, 3-month-old and 6-month-old female mice. Interestingly, Sirt3-/- mice were more resistant to bone loss following estrogen deficiency resulting from OVX. Our findings demonstrated that SIRT3 could play critical roles in bone remodeling and estrogen deficiency-induced bone loss in female mice, suggesting that SIRT3 and its downstream effectors might be potential novel therapeutic targets for the management of postmenopausal osteoporosis.
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Affiliation(s)
- Qiangqiang Li
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Haixing Wang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jiajun Zhang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alice Pik-Shan Kong
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Gang Li
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tsz-Ping Lam
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jack Chun-Yiu Cheng
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wayne Yuk-Wai Lee
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Xu K, He Y, Moqbel SAA, Zhou X, Wu L, Bao J. SIRT3 ameliorates osteoarthritis via regulating chondrocyte autophagy and apoptosis through the PI3K/Akt/mTOR pathway. Int J Biol Macromol 2021; 175:351-360. [PMID: 33556400 DOI: 10.1016/j.ijbiomac.2021.02.029] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/11/2021] [Accepted: 02/03/2021] [Indexed: 12/16/2022]
Abstract
Osteoarthritis (OA) is the most common form of joint disease. The aim of this study was to explore the functions of SIRT3 on OA pathophysiology and the mechanism involved. Rat chondrocytes and destabilized medial meniscus (DMM) rat OA model were used as in vitro and in vivo models. In addition, lentivirus and plasmid were used to overexpress SIRT3, while siRNA was applied to establish SIRT3 knockdown. IL-1β induced inflammation, apoptosis, mitochondrial dysfunction, and chondrocyte degeneration were inhibited by SIRT3 overexpression, which were enhanced in SIRT3-knockdown rat chondrocytes. Furthermore, overexpression of SIRT3 could restore IL-1β-induced autophagy inhibition. We also found that IL-1β-induced PI3K/Akt/mTOR signaling pathway activation was inhibited by SIRT3 overexpression, which was enhanced by SIRT3 knockdown. Last, intra-articular SIRT3 overexpression alleviated the severity of OA-induced rat joint damage. Our results demonstrated that SIRT3 is an important protective agent against OA pathophysiology via inhibiting PI3K/Akt/mTOR signaling.
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Affiliation(s)
- Kai Xu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuzhe He
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Safwat Adel Abdo Moqbel
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xing Zhou
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lidong Wu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Jiapeng Bao
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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Li Q, Cheng JC, Jiang Q, Lee WY. Role of sirtuins in bone biology: Potential implications for novel therapeutic strategies for osteoporosis. Aging Cell 2021; 20:e13301. [PMID: 33393735 PMCID: PMC7884050 DOI: 10.1111/acel.13301] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 12/16/2022] Open
Abstract
The decline in bone mass and bone strength and musculoskeletal problems associated with aging constitute a major challenge for affected individuals and the healthcare system globally. Sirtuins 1-7 (SIRT1-SIRT7) are a family of nicotinamide adenine dinucleotide-dependent deacetylases with remarkable abilities to promote longevity and counteract age-related diseases. Sirtuin knockout and transgenic models have provided novel insights into the function and signaling of these proteins in bone homeostasis. Studies have revealed that sirtuins play a critical role in normal skeletal development and homeostasis through their direct action on bone cells and that their dysregulation might contribute to different bone diseases. Preclinical studies have demonstrated that mice treated with sirtuin agonists show protection against age-related, postmenopausal, and immobilization-induced osteoporosis. These findings suggest that sirtuins could be potential targets for the modulation of the imbalance in bone remodeling and treatment of osteoporosis and other bone disorders. The aim of this review was to provide a comprehensive updated review of the current knowledge on sirtuin biology, focusing specifically on their roles in bone homeostasis and osteoporosis, and potential pharmacological interventions targeting sirtuins for the treatment of osteoporosis.
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Affiliation(s)
- Qiangqiang Li
- SH Ho Scoliosis Research LaboratoryDepartment of Orthopaedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing UniversityThe Chinese University of Hong KongHong Kong SARChina
- Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina
| | - Jack Chun‐yiu Cheng
- SH Ho Scoliosis Research LaboratoryDepartment of Orthopaedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing UniversityThe Chinese University of Hong KongHong Kong SARChina
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive SurgeryDrum Tower Hospital affiliated to Medical School of Nanjing UniversityNanjingChina
| | - Wayne Yuk‐wai Lee
- SH Ho Scoliosis Research LaboratoryDepartment of Orthopaedics and TraumatologyThe Chinese University of Hong KongHong Kong SARChina
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing UniversityThe Chinese University of Hong KongHong Kong SARChina
- Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong SARChina
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Wang JS, Yoon SH, Wein MN. Role of histone deacetylases in bone development and skeletal disorders. Bone 2021; 143:115606. [PMID: 32829038 PMCID: PMC7770092 DOI: 10.1016/j.bone.2020.115606] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 02/08/2023]
Abstract
Bone cells must constantly respond to hormonal and mechanical cues to change gene expression programs. Of the myriad of epigenomic mechanisms used by cells to dynamically alter cell type-specific gene expression, histone acetylation and deacetylation has received intense focus over the past two decades. Histone deacetylases (HDACs) represent a large family of proteins with a conserved deacetylase domain first described to deacetylate lysine residues on histone tails. It is now appreciated that multiple classes of HDACs exist, some of which are clearly misnamed in that acetylated lysine residues on histone tails is not the major function of their deacetylase domain. Here, we will review the roles of proteins bearing deacetylase domains in bone cells, focusing on current genetic evidence for each individual HDAC gene. While class I HDACs are nuclear proteins whose primary role is to deacetylate histones, class IIa and class III HDACs serve other important cellular functions. Detailed knowledge of the roles of individual HDACs in bone development and remodeling will set the stage for future efforts to specifically target individual HDAC family members in the treatment of skeletal diseases such as osteoporosis.
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Affiliation(s)
- Jialiang S Wang
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sung-Hee Yoon
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Marc N Wein
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Soares EL, Dos Santos FA, Mroczek T, de Lima DC, Josefino HVB, da Silva LAB, Mecca LEA, Franco GCN. Effect of caloric restriction on alveolar bone loss in rats. Life Sci 2021; 269:119067. [PMID: 33465390 DOI: 10.1016/j.lfs.2021.119067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 10/22/2022]
Affiliation(s)
| | | | - Tayline Mroczek
- Department of Health Sciences, Universidade Estadual de Ponta Grossa, PR, Brazil
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Merlotti D, Cosso R, Eller-Vainicher C, Vescini F, Chiodini I, Gennari L, Falchetti A. Energy Metabolism and Ketogenic Diets: What about the Skeletal Health? A Narrative Review and a Prospective Vision for Planning Clinical Trials on this Issue. Int J Mol Sci 2021; 22:ijms22010435. [PMID: 33406758 PMCID: PMC7796307 DOI: 10.3390/ijms22010435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/27/2020] [Accepted: 12/30/2020] [Indexed: 12/15/2022] Open
Abstract
The existence of a common mesenchymal cell progenitor shared by bone, skeletal muscle, and adipocytes cell progenitors, makes the role of the skeleton in energy metabolism no longer surprising. Thus, bone fragility could also be seen as a consequence of a “poor” quality in nutrition. Ketogenic diet was originally proven to be effective in epilepsy, and long-term follow-up studies on epileptic children undergoing a ketogenic diet reported an increased incidence of bone fractures and decreased bone mineral density. However, the causes of such negative impacts on bone health have to be better defined. In these subjects, the concomitant use of antiepileptic drugs and the reduced mobilization may partly explain the negative effects on bone health, but little is known about the effects of diet itself, and/or generic alterations in vitamin D and/or impaired growth factor production. Despite these remarks, clinical studies were adequately designed to investigate bone health are scarce and bone health related aspects are not included among the various metabolic pathologies positively influenced by ketogenic diets. Here, we provide not only a narrative review on this issue, but also practical advice to design and implement clinical studies on ketogenic nutritional regimens and bone health outcomes. Perspectives on ketogenic regimens, microbiota, microRNAs, and bone health are also included.
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Affiliation(s)
- Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (D.M.); (L.G.)
| | - Roberta Cosso
- Istituto Auxologico Italiano “Scientific Institute for Hospitalisation and Care”, 20100 Milano, Italy; (R.C.); (I.C.)
| | - Cristina Eller-Vainicher
- Unit of Endocrinology, Fondazione IRCCS Cà Granda-Ospedale Maggiore Policlinico Milano, 20122 Milano, Italy;
| | - Fabio Vescini
- Endocrinology and Metabolism Unit, University-Hospital S. Maria della Misericordia of Udine, 33100 Udine, Italy;
| | - Iacopo Chiodini
- Istituto Auxologico Italiano “Scientific Institute for Hospitalisation and Care”, 20100 Milano, Italy; (R.C.); (I.C.)
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20122 Milano, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (D.M.); (L.G.)
| | - Alberto Falchetti
- Istituto Auxologico Italiano “Scientific Institute for Hospitalisation and Care”, 20100 Milano, Italy; (R.C.); (I.C.)
- Correspondence:
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37
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Xu J, Pei Y, Lu J, Liang X, Li Y, Wang J, Zhang Y. LncRNA SNHG7 alleviates IL-1β-induced osteoarthritis by inhibiting miR-214-5p-mediated PPARGC1B signaling pathways. Int Immunopharmacol 2021; 90:107150. [PMID: 33296783 DOI: 10.1016/j.intimp.2020.107150] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND As a common joint disease, osteoarthritis (OA) is the main cause of limited joint mobility and disability. The role of lncRNAs in the regulation of OA is increasingly discovered. Therefore, further exploring the function of SNHG7 in OA is of great significance for understanding its occurrence and development. METHODS We used interleukin-1β (IL-1β) to treat to establish an OA model primary on chondrocytes in vitro, and gain- and loss of function assays of SNHG7 and miR-214-5p were conducted. The cell viability and apoptosis of chondrocytes were detected by CCK8 assay, BrdU assay and flow cytometry. The inflammatory cytokines (IL-1β, IL-6 and TNF-α), NLRP3 inflammasome, protein level of PPARGC1B, PPARγ, P38 and NF-κB were determined by RT-PCR and/or western blot. RESULTS The results showed that SNHG7 was distinctly downregulated, while miR-214-5p was significantly upregulated in OA patients and primary chondrocytes treated with IL-1β. In addition, SNHG7 enhanced cell viability, inhibited apoptosis and inflammation of IL-1β-mediated chondrocytes. In contrast, miR-214-5p upregulation reduced viability, promoted apoptosis and inflammation of chondrocytes. Mechanistically, SNHG7 served as a competitive endogenous RNA by sponging miR-214-5p, which targeted PPARGC1B. Besides, the results of the compensation experiment affirmed that miR-214-5p attenuates SNHG7-mediated protective effects on IL-1β-mediated chondrocytes against apoptosis and inflammation, and activating PPARγ pathway markedly dampened the cytotoxic effects of miR-214-5p. CONCLUSIONS Collectively, The above results confirmed that SNHG7 prevents IL-1β induced OA by inhibiting NLRP3 inflammasome and apoptosis through miR-214-5p/PPARGC1B axis.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Cartilage, Articular/drug effects
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Case-Control Studies
- Cells, Cultured
- Chondrocytes/drug effects
- Chondrocytes/metabolism
- Chondrocytes/pathology
- Humans
- Inflammasomes/metabolism
- Inflammation Mediators/metabolism
- Interleukin-1beta/toxicity
- Knee Joint/drug effects
- Knee Joint/metabolism
- Knee Joint/pathology
- Mice, Inbred C57BL
- MicroRNAs/genetics
- MicroRNAs/metabolism
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Osteoarthritis, Knee/genetics
- Osteoarthritis, Knee/metabolism
- Osteoarthritis, Knee/pathology
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Signal Transduction
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Mice
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Affiliation(s)
- Junkui Xu
- Foot Ankle Center, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Yanjiang Pei
- Department of Urology Surgery, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Jun Lu
- Foot Ankle Center, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Xiaojun Liang
- Foot Ankle Center, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Yi Li
- Foot Ankle Center, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Junhu Wang
- Foot Ankle Center, The Xi'an Honghui Hospital, Xi'an 710054, Shaanxi, China
| | - Yingang Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
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Epigenetic Regulators Involved in Osteoclast Differentiation. Int J Mol Sci 2020; 21:ijms21197080. [PMID: 32992908 PMCID: PMC7583862 DOI: 10.3390/ijms21197080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/17/2022] Open
Abstract
Age related changes to the skeleton, such as osteoporosis, increase the risk of fracture and morbidity in the elderly population. In osteoporosis, bone remodeling becomes unbalanced with an increase in bone resorption and a decrease in bone formation. Osteoclasts are large multinucleated cells that secrete acid and proteases to degrade and resorb bone. Understanding the molecular mechanisms that regulate osteoclast differentiation and activity will provide insight as to how hyper-active osteoclasts lead to pathological bone loss, contributing to diseases such as osteoporosis. Reversible modifications to the DNA such as histone acetylation, methylation, phosphorylation and ubiquitylation alters the access of transcriptional machinery to DNA and regulates gene expression and osteoclast differentiation and activity. It is critical for the management of bone related diseases to understand the role of these chromatin modifying proteins during osteoclast differentiation, as potential therapies targeting these proteins are currently under development.
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Yang J, Ueharu H, Mishina Y. Energy metabolism: A newly emerging target of BMP signaling in bone homeostasis. Bone 2020; 138:115467. [PMID: 32512164 PMCID: PMC7423769 DOI: 10.1016/j.bone.2020.115467] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 12/11/2022]
Abstract
Energy metabolism is the process of generating energy (i.e. ATP) from nutrients. This process is indispensable for cell homeostasis maintenance and responses to varying conditions. Cells require energy for growth and maintenance and have evolved to have multiple pathways to produce energy. Both genetic and functional studies have demonstrated that energy metabolism, such as glucose, fatty acid, and amino acid metabolism, plays important roles in the formation and function of bone cells including osteoblasts, osteocytes, and osteoclasts. Dysregulation of energy metabolism in bone cells consequently disturbs the balance between bone formation and bone resorption. Metabolic diseases have also been reported to affect bone homeostasis. Bone morphogenic protein (BMP) signaling plays critical roles in regulating the formation and function of bone cells, thus affecting bone development and homeostasis. Mutations of BMP signaling-related genes in mice have been reported to show abnormalities in energy metabolism in many tissues, including bone. In addition, BMP signaling correlates with critical signaling pathways such as mTOR, HIF, Wnt, and self-degradative process autophagy to coordinate energy metabolism and bone homeostasis. These findings will provide a newly emerging target of BMP signaling and potential therapeutic strategies and the improved management of bone diseases. This review summarizes the recent advances in our understanding of (1) energy metabolism in regulating the formation and function of bone cells, (2) function of BMP signaling in whole body energy metabolism, and (3) mechanistic interaction of BMP signaling with other signaling pathways and biological processes critical for energy metabolism and bone homeostasis.
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Affiliation(s)
- Jingwen Yang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China.
| | - Hiroki Ueharu
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA.
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40
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Zhang J, Xiang H, Liu J, Chen Y, He RR, Liu B. Mitochondrial Sirtuin 3: New emerging biological function and therapeutic target. Theranostics 2020; 10:8315-8342. [PMID: 32724473 PMCID: PMC7381741 DOI: 10.7150/thno.45922] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/08/2020] [Indexed: 02/05/2023] Open
Abstract
Sirtuin 3 (SIRT3) is one of the most prominent deacetylases that can regulate acetylation levels in mitochondria, which are essential for eukaryotic life and inextricably linked to the metabolism of multiple organs. Hitherto, SIRT3 has been substantiated to be involved in almost all aspects of mitochondrial metabolism and homeostasis, protecting mitochondria from a variety of damage. Accumulating evidence has recently documented that SIRT3 is associated with many types of human diseases, including age-related diseases, cancer, heart disease and metabolic diseases, indicating that SIRT3 can be a potential therapeutic target. Here we focus on summarizing the intricate mechanisms of SIRT3 in human diseases, and recent notable advances in the field of small-molecule activators or inhibitors targeting SIRT3 as well as their potential therapeutic applications for future drug discovery.
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41
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Tong X, Ganta RR, Liu Z. AMP-activated protein kinase (AMPK) regulates autophagy, inflammation and immunity and contributes to osteoclast differentiation and functionabs. Biol Cell 2020; 112:251-264. [PMID: 32445585 DOI: 10.1111/boc.202000008] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 02/06/2023]
Abstract
Osteoclasts are multinucleated giant cells, responsible for bone resorption. Osteoclast differentiation and function requires a series of cytokines to remove the old bone, which coordinates with the induction of bone remodelling by osteoblast-mediated bone formation. Studies have demonstrated that AMP-activated protein kinase (AMPK) play a negative regulatory role in osteoclast differentiation and function. Research involving AMPK, a nutrient and energy sensor, has primarily focused on osteoclast differentiation and function; thus, its role in autophagy, inflammation and immunity remains poorly understood. Autophagy is a conservative homoeostatic mechanism of eukaryotic cells, and response to osteoclast differentiation and function; however, how it interacts with inflammation remains unclear. Additionally, based on the regulatory function of different AMPK subunits for osteoclast differentiation and function, its activation is regulated by upstream factors to perform bone metabolism. This review summarises the critical role of AMPK-mediated autophagy, inflammation and immunity by upstream and downstream signalling during receptor activator of nuclear factor kappa-B ligand-induced osteoclast differentiation and function. This pathway may provide therapeutic targets for bone-related diseases, as well as function as a biomarker for bone homoeostasis.
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Affiliation(s)
- Xishuai Tong
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic of China.,Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, 66502, USA.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, Jiangsu, 225009, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic of China
| | - Roman R Ganta
- Center of Excellence for Vector-Borne Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, 66502, USA
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, Jiangsu, 225009, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic of China
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Wang Y, Li C, Gu J, Chen C, Duanmu J, Miao J, Yao W, Tao J, Tu M, Xiong B, Zhao L, Liu Z. Celastrol exerts anti-inflammatory effect in liver fibrosis via activation of AMPK-SIRT3 signalling. J Cell Mol Med 2019; 24:941-953. [PMID: 31742890 PMCID: PMC6933398 DOI: 10.1111/jcmm.14805] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/23/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Celastrol, a pentacyclic tritepene extracted from Tripterygium Wilfordi plant, showing potent liver protection effects on several liver-related diseases. However, the anti-inflammatory potential of celastrol in liver fibrosis and the detailed mechanisms remain uncovered. This study was to investigate the anti-inflammatory effect of celastrol in liver fibrosis and to further reveal mechanisms of celastrol-induced anti-inflammatory effects with a focus on AMPK-SIRT3 signalling. Celastrol showed potent ameliorative effects on liver fibrosis both in activated hepatic stellate cells (HSCs) and in fibrotic liver. Celastrol remarkably suppressed inflammation in vivo and inhibited the secretion of inflammatory factors in vitro. Interestingly, celastrol increased SIRT3 promoter activity and SIRT3 expression both in fibrotic liver and in activated HSCs. Furthermore, SIRT3 silencing evidently ameliorated the anti-inflammatory potential of celastrol. Besides, we found that celastrol could increase the AMPK phosphorylation. Further investigation showed that SIRT3 siRNA decreased SIRT3 expression but had no obvious effect on phosphorylation of AMPK. In addition, inhibition of AMPK by employing compound C (an AMPK inhibitor) or AMPK1α siRNA significantly suppressed SIRT3 expression, suggesting that AMPK was an up-stream protein of SIRT3 in liver fibrosis. We further found that depletion of AMPK significantly attenuated the inhibitory effect of celastrol on inflammation. Collectively, celastrol attenuated liver fibrosis mainly through inhibition of inflammation by activating AMPK-SIRT3 signalling, which makes celastrol be a potential candidate compound in treating or protecting against liver fibrosis.
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Affiliation(s)
- Yuqin Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chunling Li
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jingya Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chang Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jiaxin Duanmu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jing Miao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Wenjuan Yao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Jinhua Tao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Mengjue Tu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Biao Xiong
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Lingling Zhao
- Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, China
| | - Zhaoguo Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
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Hong L, Ai J, Ma D. Activation of Dusp14 protects against osteoclast generation and bone loss by regulating AMPKα-dependent manner. Biochem Biophys Res Commun 2019; 519:445-452. [PMID: 31526569 DOI: 10.1016/j.bbrc.2019.07.091] [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] [Received: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 01/22/2023]
Abstract
Osteoporosis is a progressive systematic skeletal disorder featured by decreased bone and enhanced risk of fracture due to an uncoupling of bone resorption. Chronic inflammatory response plays an essential role in osteoporosis progression. Unfortunately, the pathogenesis that contributes to osteoporosis still remains unclear. Dual-specificity phosphatase 14 (Dusp14, also known as MKP6) is a MAP kinase phosphatase, and has important roles in regulating various cellular processes. In the study, we attempted to explore the effects of Dusp14 on osteoporosis development. The results indicated that Dusp14 expression was decreased during osteoclast differentiation and that Dusp14 over-expression markedly alleviated osteoclast generation regulated by macrophage colony-stimulating factor (M-CSF) and receptor activator of NF-κB ligand (RANKL). In M-CSF/RANKL-treated bone marrow-derived cells (BMMs), promoting Dusp14 expression significantly alleviated inflammation and apoptosis by suppressing nuclear factor (NF)-κB and Caspase-3 signaling pathways, respectively. Furthermore, AMP-activated protein kinase (AMPK)-α activation was markedly increased by Dusp14 over-expression in M-CSF/RANKL-incubated BMMs. Importantly, we found that AMPKα blockage obviously abolished the role of Dusp14 in preventing osteoclasts differentiation at least partly via elevating M-CSF/RANKL-elicited inflammation and apoptosis. In vivo, magnesium silicate-induced inflammatory osteoporosis was obviously alleviated in Dusp14 transgenic (TG) mice. Taken together, we defined Dusp14 as an important molecular switch resulting in osteoporosis through an AMPKα-dependent manner.
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Affiliation(s)
- Lei Hong
- Department of Orthopedic Surgery, First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - Jiangbo Ai
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Danian Ma
- Department of Orthopedics, Xuyi County People's Hospital, Huai'an, 211700, China.
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Sirtuin 3 deficiency does not impede digit regeneration in mice. Sci Rep 2019; 9:16491. [PMID: 31712596 PMCID: PMC6848098 DOI: 10.1038/s41598-019-52921-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022] Open
Abstract
The mitochondrial deacetylase sirtuin 3 (SIRT3) is thought to be one of the main contributors to metabolic flexibility-promoting mitochondrial energy production and maintaining homeostasis. In bone, metabolic profiles are tightly regulated and the loss of SIRT3 has deleterious effects on bone volume in vivo and on osteoblast differentiation in vitro. Despite the prominent role of this protein in bone stem cell proliferation, metabolic activity, and differentiation, the importance of SIRT3 for regeneration after bone injury has never been reported. We show here, using the mouse digit amputation model, that SIRT3 deficiency has no impact on the regenerative capacity and architecture of bone and soft tissue. Regeneration occurs in SIRT3 deficient mice in spite of the reduced oxidative metabolic profile of the periosteal cells. These data suggest that bone regeneration, in contrast to homeostatic bone turnover, is not reliant upon active SIRT3, and our results highlight the need to examine known roles of SIRT3 in the context of injury.
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45
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Tomková V, Sandoval-Acuña C, Torrealba N, Truksa J. Mitochondrial fragmentation, elevated mitochondrial superoxide and respiratory supercomplexes disassembly is connected with the tamoxifen-resistant phenotype of breast cancer cells. Free Radic Biol Med 2019; 143:510-521. [PMID: 31494243 DOI: 10.1016/j.freeradbiomed.2019.09.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/04/2019] [Accepted: 09/04/2019] [Indexed: 12/22/2022]
Abstract
Tamoxifen resistance remains a clinical obstacle in the treatment of hormone sensitive breast cancer. It has been reported that tamoxifen is able to target respiratory complex I within mitochondria. Therefore, we established two tamoxifen-resistant cell lines, MCF7 Tam5R and T47D Tam5R resistant to 5 μM tamoxifen and investigated whether tamoxifen-resistant cells exhibit mitochondrial changes which could help them survive the treatment. The function of mitochondria in this experimental model was evaluated in detail by studying i) the composition and activity of mitochondrial respiratory complexes; ii) respiration and glycolytic status; iii) mitochondrial distribution, dynamics and reactive oxygen species production. We show that Tam5R cells exhibit a significant decrease in mitochondrial respiration, low abundance of assembled mitochondrial respiratory supercomplexes, a more fragmented mitochondrial network connected with DRP1 Ser637 phosphorylation, higher glycolysis and sensitivity to 2-deoxyglucose. Tam5R cells also produce significantly higher levels of mitochondrial superoxide but at the same time increase their antioxidant defense (CAT, SOD2) through upregulation of SIRT3 and show phosphorylation of AMPK at Ser 485/491. Importantly, MCF7 ρ0 cells lacking functional mitochondria exhibit a markedly higher resistance to tamoxifen, supporting the role of mitochondria in tamoxifen resistance. We propose that reduced mitochondrial function and higher level of reactive oxygen species within mitochondria in concert with metabolic adaptations contribute to the phenotype of tamoxifen resistance.
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Affiliation(s)
- Veronika Tomková
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
| | | | - Natalia Torrealba
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
| | - Jaroslav Truksa
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic.
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Storder J, Renard P, Arnould T. Update on the role of Sirtuin 3 in cell differentiation: A major metabolic target that can be pharmacologically controlled. Biochem Pharmacol 2019; 169:113621. [PMID: 31472127 DOI: 10.1016/j.bcp.2019.08.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023]
Abstract
Cell differentiation is a fundamental biological event in which a precursor stem cell is turning into a specialized somatic cell. It is thus crucial for the development, tissue turnover and regeneration in mammals. Among the numerous changes taking place in a cell during a differentiation programme, the biology of mitochondria, the central organelle mainly responsible for energy homeostasis and stress adaptation, is deeply modified. These modifications are now well recognized as taking an active part to the completion of the differentiation programme. Indeed, mitochondrial biogenesis and metabolic shift are observed during cell differentiation, adapting many syntheses, calcium homeostasis, ATP and reactive oxygen species production, to the needs. These mitochondrial functions are substantially regulated by the post-translational modifications of the mitochondrial proteins among which lysine acetylation is essential. This mitoacetylome is then globally controlled by the balance between spontaneous/enzymatically-catalysed protein acetylation and the NAD+-dependent deacetylation mediated by Sirtuin 3. This enzyme is now considered as a major regulator of the function of the organelle. Regarding the requirement of these mitochondrial adaptations, the subsequent growing interest for this enzyme recently extended to the investigation of the mechanisms driving cell differentiation. This review summarizes the currently available information about the significance of SIRT3 in cell differentiation in physio-pathological contexts. We also suggest a control of the differentiation-activated autophagy by SIRT3, a hypothesis supported by recent findings establishing a causal link between SIRT3 and autophagy. Eventually, an update on the present pharmacological modulators of SIRT3 in a context of cell differentiation is discussed.
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Affiliation(s)
- Julie Storder
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 61 rue de Bruxelles, 5000 Namur, Belgium
| | - Patricia Renard
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 61 rue de Bruxelles, 5000 Namur, Belgium
| | - Thierry Arnould
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 61 rue de Bruxelles, 5000 Namur, Belgium.
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Bone Remodeling: Histone Modifications as Fate Determinants of Bone Cell Differentiation. Int J Mol Sci 2019; 20:ijms20133147. [PMID: 31252653 PMCID: PMC6651527 DOI: 10.3390/ijms20133147] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 02/07/2023] Open
Abstract
The bone tissue is a dynamic complex that constitutes of several interdependent systems and is continuously remodeled through the concerted actions of bone cells. Osteoblasts are mononucleated cells, derived from mesenchymal stem cells, responsible for bone formation. Osteoclasts are large multinucleated cells that differentiate from hematopoietic progenitors of the myeloid lineage and are responsible for bone resorption. The lineage-specific differentiation of bone cells requires an epigenetic regulation of gene expressions involving chromatin dynamics. The key step for understanding gene regulatory networks during bone cell development lies in characterizing the chromatin modifying enzymes responsible for reorganizing and potentiating particular chromatin structure. This review covers the histone-modifying enzymes involved in bone development, discusses the impact of enzymes on gene expression, and provides future directions and clinical significance in this area.
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Liu Z, Liu H, Xiao L, Liu G, Sun L, He L. STC-1 ameliorates renal injury in diabetic nephropathy by inhibiting the expression of BNIP3 through the AMPK/SIRT3 pathway. J Transl Med 2019; 99:684-697. [PMID: 30683904 DOI: 10.1038/s41374-018-0176-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 10/10/2018] [Accepted: 10/22/2018] [Indexed: 12/21/2022] Open
Abstract
Diabetic kidney disease (DKD) is the leading cause of morbidity and mortality in individuals with diabetes, and it is the leading cause of end-stage renal disease (ESRD) worldwide. Stanniocalcin-1 (STC-1) is present in various tissues, and it has antioxidant and anti-apoptotic activities, which play a role in kidney protection, including diabetic nephropathy (DN). However, the mechanism that underlies these effects remains unknown. This study suggests that STC-1 ameliorates oxidative stress and cell apoptosis in the kidneys of db/db mice and high glucose (HG)-treated BUMPT cells by inhibiting Bnip3 expression through AMPK/Sirt3 pathway activation. In the clinic, DKD patients with high levels of STC-1 have a better prognosis than patients with low STC-1 levels. Thus, we concluded that STC-1 ameliorates renal injury in DN by inhibiting the expression of Bnip3 through the AMPK/SIRT3 pathway and that serum STC-1 is independently associated with DKD progression in patients with type 2 diabetes. As high STC-1 levels indicate a better prognosis, synthetic STC-1 may become a potential drug for the treatment of DKD patients.
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Affiliation(s)
- Zhiwen Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, 139 Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, 139 Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Li Xiao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, 139 Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Guoyong Liu
- Department of Nephrology, The First Affiliated Hospital of Changde Vocational Technical College, Changde, 415000, People's Republic of China
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, 139 Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Liyu He
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, 139 Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
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Regulation of Osteoclast Differentiation and Skeletal Maintenance by Histone Deacetylases. Molecules 2019; 24:molecules24071355. [PMID: 30959867 PMCID: PMC6479495 DOI: 10.3390/molecules24071355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/28/2019] [Accepted: 04/04/2019] [Indexed: 12/21/2022] Open
Abstract
Bone is a dynamic tissue that must respond to developmental, repair, and remodeling cues in a rapid manner with changes in gene expression. Carefully-coordinated cycles of bone resorption and formation are essential for healthy skeletal growth and maintenance. Osteoclasts are large, multinucleated cells that are responsible for breaking down bone by secreting acids to dissolve the bone mineral and proteolytic enzymes that degrade the bone extracellular matrix. Increased osteoclast activity has a severe impact on skeletal health, and therefore, osteoclasts represent an important therapeutic target in skeletal diseases, such as osteoporosis. Progression from multipotent progenitors into specialized, terminally-differentiated cells involves carefully-regulated patterns of gene expression to control lineage specification and emergence of the cellular phenotype. This process requires coordinated action of transcription factors with co-activators and co-repressors to bring about proper activation and inhibition of gene expression. Histone deacetylases (HDACs) are an important group of transcriptional co-repressors best known for reducing gene expression via removal of acetyl modifications from histones at HDAC target genes. This review will cover the progress that has been made recently to understand the role of HDACs and their targets in regulating osteoclast differentiation and activity and, thus, serve as potential therapeutic target.
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50
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Abstract
The sirtuin family of NAD+-dependent protein deacetylases promotes longevity and counteracts age-related diseases. One of the major targets of Sirtuins are the FoxO family of transcription factors. FoxOs play a major role in the adaptation of cells to a variety of stressors such as oxidative stress and growth factor deprivation. Studies with murine models of cell-specific loss- or gain-of-function of Sirtuins or FoxOs and with Sirtuin1 stimulators have provided novel insights into the function and signaling of these proteins on the skeleton. These studies have revealed that both Sirtuins and FoxOs acting directly in cartilage and bone cells are critical for normal skeletal development, homeostasis and that their dysregulation might contribute to skeletal disease. Deacetylation of FoxOs by Sirt1 in osteoblasts and osteoclasts stimulates bone formation and inhibits bone resorption, making Sirt1 ligands promising therapeutic agents for diseases of low bone mass. While a similar link has not been established in chondrocytes, Sirt1 and FoxOs both have chondroprotective actions, suggesting that Sirt1 activators may have similar efficacy in preventing cartilage degeneration due to aging or injury. In this review we summarize these advances and discuss their implications for the pathogenesis of age-related osteoporosis and osteoarthritis.
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Affiliation(s)
- Maria Almeida
- Department of Medicine, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Department of Orthopedics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Ryan M Porter
- Department of Medicine, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Department of Orthopedics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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