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Zhao K, Zhang H, Yang D. SIRT1 exerts protective effects by inhibiting endoplasmic reticulum stress and NF-κB signaling pathways. Front Cell Dev Biol 2024; 12:1405546. [PMID: 38745862 PMCID: PMC11091328 DOI: 10.3389/fcell.2024.1405546] [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: 03/23/2024] [Accepted: 04/16/2024] [Indexed: 05/16/2024] Open
Abstract
Silent information regulator two homolog 1 (SIRT1), an NAD + -dependent histone deacetylase, plays a pivotal regulatory role in a myriad of physiological processes. A growing body of evidence suggests that SIRT1 can exert protective effects in metabolic disorders and neurodegenerative diseases by inhibiting endoplasmic reticulum (ER) stress and the nuclear factor-κB (NF-κB) inflammatory signaling pathway. This review systematically elucidates the molecular mechanisms and biological significance of SIRT1 in regulating ER stress and the NF-κB pathway. On one hand, SIRT1 can deacetylate key molecules in the ER stress pathway, such as glucose-regulated protein 78 (GRP78), X-box binding protein 1 (XBP1), PKR-like ER kinase (PERK), inositol-requiring enzyme 1α (IRE1α), and activating transcription factor 6 (ATF6), thereby alleviating ER stress. On the other hand, SIRT1 can directly or indirectly remove the acetylation modification of the NF-κB p65 subunit, inhibiting its transcriptional activity and thus attenuating inflammatory responses. Through these mechanisms, SIRT1 can ameliorate insulin resistance in metabolic diseases, exert cardioprotective effects in ischemia-reperfusion injury, and reduce neuronal damage in neurodegenerative diseases. However, it is important to note that while these findings are promising, the complex nature of the biological systems involved warrants further investigation to fully unravel the intricacies of SIRT1's regulatory mechanisms. Nevertheless, understanding the regulatory mechanisms of SIRT1 on ER stress and the NF-κB pathway is of great significance for expanding our knowledge of the pathogenesis of related diseases and exploring new preventive and therapeutic strategies targeting SIRT1.
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Affiliation(s)
| | | | - Dong Yang
- Plastic Surgery Hospital (PSH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Lin D, Sun Y, Wang Y, Yang D, Shui M, Wang Y, Xue Z, Huang X, Zhang Y, Wu A, Wei C. Transforming Growth Factor β1 Ameliorates Microglial Activation in Perioperative Neurocognitive Disorders. Neurochem Res 2023; 48:3512-3524. [PMID: 37470907 DOI: 10.1007/s11064-023-03994-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 06/13/2023] [Accepted: 07/11/2023] [Indexed: 07/21/2023]
Abstract
Perioperative neurocognitive disorder (PND) is a common complication of surgery and anesthesia, especially among older patients. Microglial activation plays a crucial role in the occurrence and development of PND and transforming growth factor beta 1 (TGF-β1) can regulate microglial homeostasis. In the present study, abdominal surgery was performed on 12-14 months-old C57BL/6 mice to establish a PND model. The expression of TGF-β1, TGF-β receptor 1, TGF-β receptor 2, and phosphor-smad2/smad3 (psmad2/smad3) was assessed after anesthesia and surgery. Additionally, we examined changes in microglial activation, morphology, and polarization, as well as neuroinflammation and dendritic spine density in the hippocampus. Behavioral tests, including the Morris water maze and open field tests, were used to examine cognitive function, exploratory locomotion, and emotions. We observed decreased TGF-β1 expression after surgery and anesthesia. Intranasally administered exogenous TGF-β1 increased psmad2/smad3 colocalization with microglia positive for ionized calcium-binding adaptor molecule 1. TGF-β1 treatment attenuated microglial activation, reduced microglial phagocytosis, and reduced surgery- and anesthesia-induced changes in microglial morphology. Compared with the surgery group, TGF-β1 treatment decreased M1 microglial polarization and increased M2 microglial polarization. Additionally, surgery- and anesthesia-induced increase in interleukin 1 beta and tumor necrosis factor-alpha levels was ameliorated by TGF-β1 treatment at postoperative day 3. TGF-β1 also ameliorated cognitive function after surgery and anesthesia as well as rescue dendritic spine loss. In conclusion, surgery and anesthesia induced decrease in TGF-β1 levels in older mice, which may contribute to PND development; however, TGF-β1 ameliorated microglial activation and cognitive dysfunction in PND mice.
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Affiliation(s)
- Dandan Lin
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China
| | - Yi Sun
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China
| | - Yuzhu Wang
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China
| | - Di Yang
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China
| | - Min Shui
- Department of Anesthesiology, Sichuan Provincial People's Hospital, Sichuan Academy of Medical Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Yiming Wang
- State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Ziyi Xue
- Department of Anesthesiology, Peking University First Hospital, Beijing, China
| | - Xiao Huang
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China
| | - Yan Zhang
- State Key Laboratory of Membrane Biology, College of Life Sciences, Peking University, Beijing, 100871, China.
| | - Anshi Wu
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China.
| | - Changwei Wei
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongti Nanlu, Chao-Yang District, Beijing, 100020, China.
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Wei P, Jia M, Liu PM, Meng L, Li J, Yang JJ. Stem cell-based therapy and its potential in perioperative neurocognitive disorders. Br J Anaesth 2023; 131:e139-e142. [PMID: 37587005 DOI: 10.1016/j.bja.2023.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/02/2023] [Accepted: 07/12/2023] [Indexed: 08/18/2023] Open
Affiliation(s)
- Penghui Wei
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China; Department of Anesthesiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, PR China
| | - Min Jia
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Pan-Miao Liu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Liying Meng
- Department of Medical Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, PR China
| | - Jianjun Li
- Department of Anesthesiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, PR China
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China.
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Li Y, Sun M, Cao F, Chen Y, Zhang L, Li H, Cao J, Song J, Ma Y, Mi W, Zhang X. The Ferroptosis Inhibitor Liproxstatin-1 Ameliorates LPS-Induced Cognitive Impairment in Mice. Nutrients 2022; 14:4599. [PMID: 36364859 PMCID: PMC9656387 DOI: 10.3390/nu14214599] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 08/10/2023] Open
Abstract
CNS inflammation is known to be an important pathogenetic mechanism of perioperative neurocognitive disorder (PND), and iron overload was reported to participate in this process accompanied by oxidative stress. Ferroptosis is an iron-dependent form of cell death, and occurs in multiple neurodegenerative diseases with cognitive disorder. However, the effect of ferroptosis in inflammation-related PND is unknown. In this study, we found that the ferroptosis inhibitor liproxstatin-1 ameliorated memory deficits in the mouse model of lipopolysaccharide (LPS)-induced cognitive impairment. Moreover, liproxstatin-1 decreased the activation of microglia and the release of interleukin (IL)-6 and tumor necrosis factor-alpha (TNF)-α, attenuated oxidative stress and lipid peroxidation, and further weakened mitochondrial injury and neuronal damage after LPS exposure. Additionally, the protective effect of liproxstatin-1 was related to the alleviation of iron deposition and the regulation of the ferroptosis-related protein family TF, xCT, Fth, Gpx4, and FtMt. These findings enhance our understanding of inflammation-involved cognitive dysfunction and shed light on future preclinical studies.
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Affiliation(s)
- Yang Li
- Chinese PLA Medical School, Beijing 100853, China
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Miao Sun
- Chinese PLA Medical School, Beijing 100853, China
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Fuyang Cao
- Chinese PLA Medical School, Beijing 100853, China
- Department of Anesthesiology, Sixth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Yu Chen
- Department of Anesthesiology, Sixth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Linlin Zhang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Hao Li
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Jiangbei Cao
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Jie Song
- Nursing Department, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Yulong Ma
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Weidong Mi
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xiaoying Zhang
- Department of Anesthesiology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Skok M. Mesenchymal stem cells as a potential therapeutic tool to cure cognitive impairment caused by neuroinflammation. World J Stem Cells 2021; 13:1072-1083. [PMID: 34567426 PMCID: PMC8422935 DOI: 10.4252/wjsc.v13.i8.1072] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/28/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
An established contribution of neuroinflammation to multiple brain pathologies has raised the requirement for therapeutic strategies to overcome it in order to prevent age- and disease-dependent cognitive decline. Mesenchymal stem cells (MSCs) produce multiple growth and neurotrophic factors and seem to evade immune rejection due to low expression of major histocompatibility complex class I molecules. Therefore, MSCs are widely used in experiments and clinical trials of regenerative medicine. This review summarizes recent data concerning the optimization of MSC use for therapeutic purposes with the emphasis on the achievements of the last 2 years. Specific attention is paid to extracellular vesicles secreted by MSCs and to the role of α7 nicotinic acetylcholine receptors. The reviewed data demonstrate that MSCs have a significant therapeutic potential in treating neuroinflammation-related cognitive disfunctions including age-related neurodegenerative diseases. The novel data demonstrate that maximal therapeutic effect is being achieved when MSCs penetrate the brain and produce their stimulating factors in situ. Consequently, therapeutic application using MSCs should include measures to facilitate their homing to the brain, support the survival in the brain microenvironment, and stimulate the production of neurotrophic and anti-inflammatory factors. These measures include but are not limited to genetic modification of MSCs and pre-conditioning before transplantation.
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Affiliation(s)
- Maryna Skok
- Department of Molecular Immunology, Palladin Institute of Biochemistry NAS of Ukraine, Kyiv 01054, Ukraine
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