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Yao Y, Liu X, Niu X, Li Y, Han L. Lycopene Regulates Macrophage Immune Response through the Autophagy Pathway Mediated by RIPK1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14747-14759. [PMID: 38889306 DOI: 10.1021/acs.jafc.4c02531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
The effects of lycopene (LP) on macrophage immune responses were evaluated in this study. Compared with the control treatment, LP treatment significantly increased cell vitality, phagocytic activity, and chemokine production in RAW264.7 cells. Additionally, compared with the control treatment, 4 μM LP treatment significantly activated autophagy, enhanced mitochondrial membrane potential, and upregulated receptor-interacting protein kinase 1 (RIPK1), while necrostatin-1 significantly reversed these effects of LP. Furthermore, compared with that in the control group, RIPK1 was significantly upregulated in the 4 μM LP and 4 μM LP + spautin-1 groups, whereas p-mTOR levels were reduced. More importantly, compared with that in the control group, p62 was significantly downregulated, and Beclin1, LC3-II, and Atg7 were upregulated in the 4 μM LP group, while spautin-1 significantly reversed these effects of LP. These results confirm that LP activates the mTOR/Beclin1/LC3/p62 autophagy signaling pathway through RIPK1, thereby enhancing the immune response of macrophages.
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Affiliation(s)
- Yupei Yao
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Xiaoran Liu
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Xiaoyan Niu
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Yaping Li
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Lirong Han
- Hebei Key Laboratory of Public Health Safety, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
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2
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Peng L, Li K, Li D, Zuo X, Zhan L, Chen M, Gong M, Sun W, Xu E. The p75 neurotrophin receptor attenuates secondary thalamic damage after cortical infarction by promoting angiogenesis. CNS Neurosci Ther 2024; 30:e14875. [PMID: 39072998 DOI: 10.1111/cns.14875] [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: 03/10/2024] [Revised: 06/23/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND Angiogenesis is crucial in neuroprotection of secondary thalamic injury after cortical infarction. The p75 neurotrophin receptor (p75NTR) plays a key role in activating angiogenesis. However, the effects of p75NTR on angiogenesis in the thalamus after cortical infarction are largely unknown. Herein we investigate whether p75NTR facilitates angiogenesis to attenuate secondary thalamic damage via activating hypoxia-inducible factor 1α (HIF-1α)/vascular endothelial growth factor (VEGF) pathway mediated by Von Hippel-Lindau (VHL) after distal middle cerebral artery occlusion (dMCAO). METHODS The male rat model of dMCAO was established. The effects of p75NTR on the angiogenesis was evaluated using RNA-sequencing, immunohistochemistry, western blot, quantitative real-time polymerase chain reaction, magnetic resonance imaging, behavior tests, viral and pharmacological interventions. RESULTS We found that the p75NTR and vessel density were decreased in ipsilateral thalamus after dMCAO. The p75NTR-VHL interaction was reduced, which promoted the ubiquitination degradation of HIF-1α and reduced VEGF expression after dMCAO. Notably, p75NTR overexpression restrained the ubiquitination degradation of HIF-1α by inhibiting VHL-HIF-1α interaction, further promoted angiogenesis, increased cerebral blood flow of ipsilateral thalamus and improved neurological function after dMCAO. CONCLUSION For the first time, we highlighted that the enhancement of p75NTR-VHL interaction promoted angiogenesis in attenuating secondary thalamic damage after dMCAO.
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Affiliation(s)
- Linhui Peng
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Kongping Li
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Neurology, The Affiliated Brain Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dan Li
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xialin Zuo
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lixuan Zhan
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Meiyan Chen
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ming Gong
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Weiwen Sun
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - En Xu
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
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Yan L, Wang WJ, Cheng T, Yang DR, Wang YJ, Wang YZ, Yang FZ, So KF, Zhang L. Hepatic kynurenic acid mediates phosphorylation of Nogo-A in the medial prefrontal cortex to regulate chronic stress-induced anxiety-like behaviors in mice. Acta Pharmacol Sin 2024:10.1038/s41401-024-01302-y. [PMID: 38811774 DOI: 10.1038/s41401-024-01302-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
Exercise training effectively relieves anxiety disorders via modulating specific brain networks. The role of post-translational modification of proteins in this process, however, has been underappreciated. Here we performed a mouse study in which chronic restraint stress-induced anxiety-like behaviors can be attenuated by 14-day persistent treadmill exercise, in association with dramatic changes of protein phosphorylation patterns in the medial prefrontal cortex (mPFC). In particular, exercise was proposed to modulate the phosphorylation of Nogo-A protein, which drives the ras homolog family member A (RhoA)/ Rho-associated coiled-coil-containing protein kinases 1(ROCK1) signaling cascade. Further mechanistic studies found that liver-derived kynurenic acid (KYNA) can affect the kynurenine metabolism within the mPFC, to modulate this RhoA/ROCK1 pathway for conferring stress resilience. In sum, we proposed that circulating KYNA might mediate stress-induced anxiety-like behaviors via protein phosphorylation modification within the mPFC, and these findings shed more insights for the liver-brain communications in responding to both stress and physical exercise.
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Affiliation(s)
- Lan Yan
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Wen-Jing Wang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Tong Cheng
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Di-Ran Yang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Ya-Jie Wang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Yang-Ze Wang
- College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Feng-Zhen Yang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Kwok-Fai So
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
- State Key Laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, 266114, China.
- Center for Exercise and Brain Science, School of Psychology, Shanghai University of Sport, Shanghai, 200438, China.
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, China.
| | - Li Zhang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, 266114, China.
- Center for Exercise and Brain Science, School of Psychology, Shanghai University of Sport, Shanghai, 200438, China.
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, China.
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Dai L, Wu Z, Yin L, Cheng L, Zhou Q, Ding F. Exogenous Functional Mitochondria Derived from Bone Mesenchymal Stem Cells That Respond to ROS Can Rescue Neural Cells Following Ischemic Stroke. J Inflamm Res 2024; 17:3383-3395. [PMID: 38803690 PMCID: PMC11129787 DOI: 10.2147/jir.s463692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/17/2024] [Indexed: 05/29/2024] Open
Abstract
Background Upon uptake by stressed cells, functional mitochondria can perform their normal functions, ultimately enhancing the survival of host cells. However, despite the promising results of this approach, there is still a lack of understanding of the specific relationship between nerve cells and functional mitochondria. Methods Functional mitochondria (F-Mito) were isolated from bone marrow-derived mesenchymal stem cells (BMSCs). The ability of microglia cells to internalize F-Mito was evaluated using a middle cerebral artery occlusion (MCAO) model in C57BL/6J mice and an oxygen-glucose deprivation/reoxygenation (OGD/R) cell model. After OGD/R and F-Mito treatment, the temporal dynamics of intracellular reactive oxygen species (ROS) levels were examined.The relationship between ROS levels and F-Mito uptake was assessed at the individual cell level using MitoSOX, Mitotracker, and HIF-1α labeling. Results Our findings indicate that microglia cells exhibit enhanced mitochondrial uptake compared to astrocytes. Furthermore, internalized F-Mito reduced ROS levels and HIF-1α levels. Importantly, we found that the ROS response in microglia cells following ischemia is a critical regulator of F-Mito internalization, and promoting autophagy in microglia cells might reduce the uptake of ROS and HIF-1α levels. Conclusion It is verified that F-Mito derived from BMSCs play a protective role in ischemia-reperfusion injury, as their weakening reduces microglial cell activation and alleviates neuroinflammation.
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Affiliation(s)
- Lihua Dai
- Department of Emergency, Shidong Hospital, ShangHai, People’s Republic of China
| | - Zheqian Wu
- Department of Emergency, Shidong Hospital, ShangHai, People’s Republic of China
| | - Liili Yin
- Department of Emergency, Shidong Hospital, ShangHai, People’s Republic of China
| | - Longjian Cheng
- Department of Emergency, Shidong Hospital, ShangHai, People’s Republic of China
| | - Qiang Zhou
- Department of General Surgery, Eighth People’s Hospital, ShangHai, People’s Republic of China
| | - Fei Ding
- Department of Emergency, Shidong Hospital, ShangHai, People’s Republic of China
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Chen Y, Veenman L, Liao M, Huang W, Yu J, Zeng J. Enhanced angiogenesis in the thalamus induced by a novel TSPO ligand ameliorates cognitive deficits after focal cortical infarction. J Cereb Blood Flow Metab 2024; 44:477-490. [PMID: 37988123 PMCID: PMC10981401 DOI: 10.1177/0271678x231214671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/25/2023] [Accepted: 06/23/2023] [Indexed: 11/22/2023]
Abstract
Neuronal loss in the ipsilateral thalamus after focal cortical infarction participates in post-stroke cognitive deficits, and enhanced angiogenesis in the thalamus is expected to reduce neuronal damage. We hypothesize that novel translocator protein (TSPO) ligand, 2-Cl-MGV-1, can promote angiogenesis, attenuate neuronal loss in the thalamus, and ameliorate post-stroke cognitive deficits. Cortical infarction was induced by distal middle cerebral artery occlusion (dMCAO) in stroke-prone renovascular hypertensive rats. 2-Cl-MGV-1 or dimethyl sulfoxide was administered 24 h after dMCAO and then for 6 or 13 days. Spatial learning and memory were assessed using the Morris water maze. Neuronal loss, TSPO expression, angiogenesis, and intrinsic pathway were determined by immunofluorescence and immunoblotting 7 and 14 days after dMCAO. Cortical infarction caused post-stroke cognitive deficits and secondary neuronal loss with gliosis in the ipsilateral thalamus within 14 days of dMCAO. Increased angiogenesis and elevated expression of vascular TSPO were detected in the ipsilateral thalamus, and treatment with 2-Cl-MGV-1 enhanced angiogenesis by stimulating the PI3K-AKT-mTOR pathway. The effects of 2-Cl-MGV-1 on angiogenesis coincided with reduced neuronal loss in the thalamus and contributed to improvements in post-stroke cognitive deficits. Our findings suggest that 2-Cl-MGV-1 stimulates angiogenesis, ameliorates neuronal loss in the thalamus, and improves post-stroke cognitive deficits.
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Affiliation(s)
- Yicong Chen
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Leo Veenman
- Department of Neuroscience, Israel Institute of Technology, Haifa, Israel
| | - Mengshi Liao
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Weixian Huang
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jian Yu
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jinsheng Zeng
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
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6
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Jiang Z, Wei J, Liang J, Huang W, Ouyang F, Chen C, Li P, Cao S, Cai Y, Li J, Huang B, Zeng J, Chen Y. Dl-3-n-Butylphthalide Alleviates Secondary Brain Damage and Improves Working Memory After Stroke in Cynomolgus Monkeys. Stroke 2024; 55:725-734. [PMID: 38406851 DOI: 10.1161/strokeaha.123.045037] [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: 08/30/2023] [Accepted: 01/17/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Remote secondary neurodegeneration is associated with poststroke cognitive impairment (PSCI). Dl-3-n-butylphthalide (NBP) improves PSCI clinically. However, whether it ameliorates PSCI by alleviating secondary neurodegeneration remains uncertain. Nonhuman primates provide more relevant models than rodents for human stroke and PSCI. This study investigated the effects of NBP on PSCI and secondary neurodegeneration in cynomolgus monkeys after permanent left middle cerebral artery occlusion (MCAO). METHODS Thirteen adult male cynomolgus monkeys were randomly assigned to sham (n=4), MCAO+placebo (n=5), and MCAO+NBP groups (n=4). The MCAO+placebo and MCAO+NBP groups received saline and NBP injections intravenously, respectively, starting at 6-hour postsurgery for 2 weeks, followed by soybean oil and NBP orally, respectively, for 10 weeks after MCAO. Infarct size was assessed at week 4 by magnetic resonance imaging. Working memory and executive function were evaluated dynamically using the delayed response task and object retrieval detour task, respectively. Neuron loss, glia proliferation, and neuroinflammation in the ipsilateral dorsal lateral prefrontal cortex, thalamus, and hippocampus were analyzed by immunostaining 12 weeks after MCAO. RESULTS Infarcts were located in the left middle cerebral artery region, apart from the ipsilateral dorsal lateral prefrontal cortex, thalamus, or hippocampus, with no significant difference between the MCAO+placebo and MCAO+NBP group. Higher success in delayed response task was achieved at weeks 4, 8, and 12 after NBP compared with placebo treatments (P<0.05), but not in the object retrieval detour task (all P>0.05). More neurons and less microglia, astrocytes, CD68-positive microglia, tumor necrosis factor-α, and inducible NO synthase were observed in the ipsilateral dorsal lateral prefrontal cortex and thalamus after 12 weeks of NBP treatment (P<0.05), but not in the hippocampus (P>0.05). CONCLUSIONS Our findings indicate that NBP improves working memory by alleviating remote secondary neurodegeneration and neuroinflammation in the ipsilateral dorsal lateral prefrontal cortex and thalamus after MCAO in cynomolgus monkeys.
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Affiliation(s)
- Zimu Jiang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jiating Wei
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jiahui Liang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Weixian Huang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Fubing Ouyang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Chunyong Chen
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Pingping Li
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Suhan Cao
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Yuangui Cai
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jianle Li
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Baozi Huang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Jinsheng Zeng
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Yicong Chen
- Section II, Department of Neurology and Stroke Center (Y. Chen), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
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7
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Cao H, Chen L, Zeng Z, Wu X, Lei Y, Jia W, Yue G, Yi B, Li YJ, Shi Y. Reversal of cholestatic liver disease by the inhibition of sphingosine 1-phosphate receptor 2 signaling. PeerJ 2024; 12:e16744. [PMID: 38250717 PMCID: PMC10798156 DOI: 10.7717/peerj.16744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Aims The objective of this study is to examine the impact of inhibiting Sphingosine 1-phosphate receptor 2 (S1PR2) on liver inflammation, fibrogenesis, and changes of gut microbiome in the context of cholestasis-induced conditions. Methods The cholestatic liver injury model was developed by common bile duct ligation (CBDL). Sprague-Dawley rats were randomly allocated to three groups, sham operation, CBDL group and JTE-013 treated CBDL group. Biochemical and histological assessments were conducted to investigate the influence of S1PR2 on the modulation of fibrogenic factors and inflammatory infiltration. We conducted an analysis of the fecal microbiome by using 16S rRNA sequencing. Serum bile acid composition was evaluated through the utilization of liquid chromatography-mass spectrometry techniques. Results In the BDL rat model, the study findings revealed a significant increase in serum levels of conjugated bile acids, accompanied by an overexpression of S1PR2. Treatment with the specific inhibitor of S1PR2, known as JTE-013, resulted in a range of specific effects on the BDL rats. These effects included the improvement of liver function, reduction of liver inflammation, inhibition of hepatocyte apoptosis, and suppression of NETosis. These effects are likely mediated through the TCA/S1PR2/NOX2/NLRP3 pathway. Furthermore, the administration of JTE-013 resulted in an augmentation of the diversity of the bacterial community's diversity, facilitating the proliferation of advantageous species while concurrently inhibiting the prevalence of detrimental bacteria. Conclusions The results of our study suggest that the administration of JTE-013 may have a beneficial effect in alleviating cholestatic liver disease and restoring the balance of intestinal flora.
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Affiliation(s)
- Huiling Cao
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Childhood Nutrition and Health, Chongqing, China
| | - Lin Chen
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Ziyang Zeng
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Xianfeng Wu
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Yuhao Lei
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Wen Jia
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Childhood Nutrition and Health, Chongqing, China
| | - Guang Yue
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Childhood Nutrition and Health, Chongqing, China
| | - Bin Yi
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Yu-jie Li
- Southwest Hospital, Third Military Medical University, Chongqing, Chongqing, China
| | - Yuan Shi
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Childhood Nutrition and Health, Chongqing, China
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8
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Yang J, Sun P, Xu X, Liu X, Lan L, Yi M, Xiao C, Ni R, Fan Y. TAK1 Improves Cognitive Function via Suppressing RIPK1-Driven Neuronal Apoptosis and Necroptosis in Rats with Chronic Hypertension. Aging Dis 2023; 14:1799-1817. [PMID: 37196118 PMCID: PMC10529759 DOI: 10.14336/ad.2023.0219] [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: 11/18/2022] [Accepted: 02/19/2023] [Indexed: 05/19/2023] Open
Abstract
Chronic hypertension is a major risk factor for cognitive impairment, which can promote neuroinflammation and neuronal loss in the central nervous system. Transforming growth factor β-activated kinase 1 (TAK1) is a key molecular component in determining cell fate and can be activated by inflammatory cytokines. This study aimed to investigate the role of TAK1 in mediating neuronal survival in the cerebral cortex and hippocampus under chronic hypertensive conditions. To that end, we used stroke-prone renovascular hypertension rats (RHRSP) as chronic hypertension models. Adeno-associated virus (AAV) designed to overexpress or knock down TAK1 expression were injected into the lateral ventricles of rats and the subsequent effects on cognitive function and neuronal survival under chronic hypertensive conditions were assessed. We found that, TAK1 knockdown in RHRSP markedly increased neuronal apoptosis and necroptosis and induced cognitive impairment, which could be reversed by Nec-1s, an inhibitor of receptor interacting protein kinase 1 (RIPK1). In contrast, overexpression of TAK1 in RHRSP significantly suppressed neuronal apoptosis and necroptosis and improved cognitive function. Further knockdown of TAK1 in sham-operated rats received similar phenotype with RHRSP. The results have been verified in vitro. In this study, we provide in vivo and in vitro evidence that TAK1 improves cognitive function by suppressing RIPK1-driven neuronal apoptosis and necroptosis in rats with chronic hypertension.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yuhua Fan
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
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9
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Ruknudin P, Nazari AR, Wirth M, Lahaie I, Bajon E, Rivard A, Chemtob S, Desjarlais M. Novel Function of Nogo-A as Negative Regulator of Endothelial Progenitor Cell Angiogenic Activity: Impact in Oxygen-Induced Retinopathy. Int J Mol Sci 2023; 24:13185. [PMID: 37685993 PMCID: PMC10488245 DOI: 10.3390/ijms241713185] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
Endothelial Progenitor Cells (EPCs) can actively participate in revascularization in oxygen-induced retinopathy (OIR). Yet the mechanisms responsible for their dysfunction is unclear. Nogo-A, whose function is traditionally related to the inhibition of neurite function in the central nervous system, has recently been documented to display anti-angiogenic pro-repellent properties. Based on the significant impact of EPCs in retinal vascularization, we surmised that Nogo-A affects EPC function, and proceeded to investigate the role of Nogo-A on EPC function in OIR. The expression of Nogo-A and its specific receptor NgR1 was significantly increased in isolated EPCs exposed to hyperoxia, as well as in EPCs isolated from rats subjected to OIR compared with respective controls (EPCs exposed to normoxia). EPCs exposed to hyperoxia displayed reduced migratory and tubulogenic activity, associated with the suppressed expression of prominent EPC-recruitment factors SDF-1/CXCR4. The inhibition of Nogo-A (using a Nogo-66 neutralizing antagonist peptide) or siRNA-NGR1 in hyperoxia-exposed EPCs restored SDF-1/CXCR4 expression and, in turn, rescued the curtailed neovascular functions of EPCs in hyperoxia. The in vivo intraperitoneal injection of engineered EPCs (Nogo-A-inhibited or NgR1-suppressed) in OIR rats at P5 (prior to exposure to hyperoxia) prevented retinal and choroidal vaso-obliteration upon localization adjacent to vasculature; coherently, the inhibition of Nogo-A/NgR1 in EPCs enhanced the expression of key angiogenic factors VEGF, SDF-1, PDGF, and EPO in retina; CXCR4 knock-down abrogated suppressed NgR1 pro-angiogenic effects. The findings revealed that hyperoxia-induced EPC malfunction is mediated to a significant extent by Nogo-A/NgR1 signaling via CXCR4 suppression; the inhibition of Nogo-A in EPCs restores specific angiogenic growth factors in retina and the ensuing vascularization of the retina in an OIR model.
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Affiliation(s)
- Pakiza Ruknudin
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
| | - Ali Riza Nazari
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
| | - Maelle Wirth
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
- Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H1T 2H2, Canada
| | - Isabelle Lahaie
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
| | - Emmanuel Bajon
- Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H1T 2H2, Canada
| | - Alain Rivard
- Department of Medicine, Centre Hospitalier de l’Université de Montréal (CHUM) Research Center, Montréal, QC H1T 2H2, Canada
| | - Sylvain Chemtob
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
- Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H1T 2H2, Canada
| | - Michel Desjarlais
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC H1T 2H2, Canada
- Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC H1T 2H2, Canada
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10
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Jiang W, Hu K, Liu X, Gao J, Zhu L. Single-cell transcriptome analysis reveals the clinical implications of myeloid-derived suppressor cells in head and neck squamous cell carcinoma. Pathol Oncol Res 2023; 29:1611210. [PMID: 37475874 PMCID: PMC10354270 DOI: 10.3389/pore.2023.1611210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/28/2023] [Indexed: 07/22/2023]
Abstract
Head and neck squamous cell carcinoma (HNSC) is the most common malignant tumor that arises in the epithelium of the head and neck regions. Myeloid-derived suppressor cells (MDSCs) are one of the tumor-infiltrating immune cell populations, which play a powerful role in inhibiting anti-tumor immune response. Herein, we employed a single-cell RNA sequencing (scRNA-seq) dataset to dissect the heterogeneity of myeloid cells. We found that SPP1 + tumor-associated macrophages (TAMs) and MDSCs were the most abundant myeloid cells in the microenvironment. By cell cluster deconvolution from bulk RNA-seq datasets of larger patient groups, we observed that highly-infiltrated MDSC was a poor prognostic marker for patients' overall survival (OS) probabilities. To better apply the MDSC OS prediction values, we identified a set of six MDSC-related genes (ALDOA, CD52, FTH1, RTN4, SLC2A3, and TNFAIP6) as the prognostic signature. In both training and test cohorts, MDSC-related prognostic signature showed a promising value for predicting patients' prognosis outcomes. Further parsing the ligand-receptor pairs of intercellular communications by CellChat, we found that MDSCs could frequently interact with cytotoxic CD8 + T cells, SPP1 + TAMs, and endothelial cells. These interactions likely contributed to the establishment of an immunosuppressive microenvironment and the promotion of tumor angiogenesis. Our findings suggest that targeting MDSCs may serve as an alternative and promising target for the immunotherapy of HNSC.
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Affiliation(s)
- Wenru Jiang
- Department of Implant and Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Kangyao Hu
- Department of Implant and Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaofei Liu
- Department of Implant and Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jili Gao
- Department of Implant and Prosthodontics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Liping Zhu
- Department of Implant and Prosthodontics, Harbin First Hospital, Harbin, China
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11
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Fang J, Wang Z, Miao CY. Angiogenesis after ischemic stroke. Acta Pharmacol Sin 2023; 44:1305-1321. [PMID: 36829053 PMCID: PMC10310733 DOI: 10.1038/s41401-023-01061-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/01/2023] [Indexed: 02/26/2023] Open
Abstract
Owing to its high disability and mortality rates, stroke has been the second leading cause of death worldwide. Since the pathological mechanisms of stroke are not fully understood, there are few clinical treatment strategies available with an exception of tissue plasminogen activator (tPA), the only FDA-approved drug for the treatment of ischemic stroke. Angiogenesis is an important protective mechanism that promotes neural regeneration and functional recovery during the pathophysiological process of stroke. Thus, inducing angiogenesis in the peri-infarct area could effectively improve hemodynamics, and promote vascular remodeling and recovery of neurovascular function after ischemic stroke. In this review, we summarize the cellular and molecular mechanisms affecting angiogenesis after cerebral ischemia registered in PubMed, and provide pro-angiogenic strategies for exploring the treatment of ischemic stroke, including endothelial progenitor cells, mesenchymal stem cells, growth factors, cytokines, non-coding RNAs, etc.
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Affiliation(s)
- Jie Fang
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China
| | - Zhi Wang
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China
| | - Chao-Yu Miao
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China.
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12
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Dave BP, Shah KC, Shah MB, Chorawala MR, Patel VN, Shah PA, Shah GB, Dhameliya TM. Unveiling the modulation of Nogo receptor in neuroregeneration and plasticity: Novel aspects and future horizon in a new frontier. Biochem Pharmacol 2023; 210:115461. [PMID: 36828272 DOI: 10.1016/j.bcp.2023.115461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023]
Abstract
Neurodegenerative diseases (NDs) such as Alzheimer's, Parkinson's, Multiple Sclerosis, Hereditary Spastic Paraplegia, and Amyotrophic Lateral Sclerosis have emerged as the most dreaded diseases due to a lack of precise diagnostic tools and efficient therapies. Despite the fact that the contributing factors of NDs are still unidentified, mounting evidence indicates the possibility that genetic and cellular changes may lead to the significant production of abnormally misfolded proteins. These misfolded proteins lead to damaging effects thereby causing neurodegeneration. The association between Neurite outgrowth factor (Nogo) with neurological diseases and other peripheral diseases is coming into play. Three isoforms of Nogo have been identified Nogo-A, Nogo-B and Nogo-C. Among these, Nogo-A is mainly responsible for neurological diseases as it is localized in the CNS (Central Nervous System), whereas Nogo-B and Nogo-C are responsible for other diseases such as colitis, lung, intestinal injury, etc. Nogo-A, a membrane protein, had first been described as a CNS-specific inhibitor of axonal regeneration. Several recent studies have revealed the role of Nogo-A proteins and their receptors in modulating neurite outgrowth, branching, and precursor migration during nervous system development. It may also modulate or affect the inhibition of growth during the developmental processes of the CNS. Information about the effects of other ligands of Nogo protein on the CNS are yet to be discovered however several pieces of evidence have suggested that it may also influence the neuronal maturation of CNS and targeting Nogo-A could prove to be beneficial in several neurodegenerative diseases.
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Affiliation(s)
- Bhavarth P Dave
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Kashvi C Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Maitri B Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Mehul R Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India.
| | - Vishvas N Patel
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Palak A Shah
- Department of Pharmacology, K. B. Institute of Pharmaceutical Education and Research, Gandhinagar 380023, Gujarat, India
| | - Gaurang B Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad 380009, Gujarat, India
| | - Tejas M Dhameliya
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Nirma University, Ahmedabad-382481, Gujarat, India
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13
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Lu H, Wang Y, Fan H, Wang Y, Fan S, Hu S, Shen H, Li H, Xue Q, Ni J, Fang Q, Chen G. GluA1 Degradation by Autophagy Contributes to Circadian Rhythm Effects on Cerebral Ischemia Injury. J Neurosci 2023; 43:2381-2397. [PMID: 36813576 PMCID: PMC10072305 DOI: 10.1523/jneurosci.1914-22.2023] [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: 10/09/2022] [Revised: 02/01/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
The mechanisms of many diseases, including central nervous system disorders, are regulated by circadian rhythms. The development of brain disorders such as depression, autism, and stroke is strongly associated with circadian cycles. Previous studies have shown that cerebral infarct volume is smaller at night (active phase) than during the day (inactive phase) in ischemic stroke rodent models. However, the underlying mechanisms remain unclear. Increasing evidence suggests that glutamate systems and autophagy play important roles in the pathogenesis of stroke. Here, we report that GluA1 expression was decreased and autophagic activity was increased in active-phase male mouse models of stroke compared with the inactive-phase models. In the active-phase model, induction of autophagy decreased the infarct volume, whereas inhibition of autophagy increased the infarct volume. Meanwhile, GluA1 expression was decreased following activation of autophagy and increased following inhibition of autophagy. We used Tat-GluA1 to uncouple p62, an autophagic adapter, from GluA1 and found that this blocked the degradation of GluA1, an effect similar to that of inhibition of autophagy in the active-phase model. We also demonstrated that knock-out of the circadian rhythm gene Per1 abolished the circadian rhythmicity of the volume of infarction and also abolished GluA1 expression and autophagic activity in wild-type (WT) mice. Our results suggest an underlying mechanism by which the circadian rhythm participates in the autophagy-dependent regulation of GluA1 expression, which influences the volume of infarction in stroke.SIGNIFICANCE STATEMENT Circadian rhythms affect the pathophysiological mechanisms of disease. Previous studies suggested that circadian rhythms affect the infarct volume in stroke, but the underlying mechanisms remain largely unknown. Here, we demonstrate that the smaller infarct volume after middle cerebral artery occlusion/reperfusion (MCAO/R) during the active phase is related to lower GluA1 expression and activation of autophagy. The decrease in GluA1 expression during the active phase is mediated by the p62-GluA1 interaction, followed by direct autophagic degradation. In short, GluA1 is the substrate of autophagic degradation, which mainly occurs after MCAO/R during the active phase but not the inactive phase.
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Affiliation(s)
- Haifeng Lu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Yugang Wang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Hua Fan
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan Province 471000, China
| | - Yiqing Wang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Shenghao Fan
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Shimin Hu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Haitao Shen
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Haiying Li
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Qun Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Jianqiang Ni
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Qi Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
| | - Gang Chen
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, China
- Institute of Stroke Research, Soochow University, Suzhou, Jiangsu Province 215006, China
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14
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Wei S, Leng B, Yan G. Targeting autophagy process in center nervous trauma. Front Neurosci 2023; 17:1128087. [PMID: 36950126 PMCID: PMC10025323 DOI: 10.3389/fnins.2023.1128087] [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: 12/20/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
The central nervous system (CNS) is the primary regulator of physiological activity, and when CNS is compromised, its physical functions are affected. Spinal cord injury (SCI) and traumatic brain injury (TBI) are common trauma in CNS that are difficult to recover from, with a higher global disability and mortality rate. Autophagy is familiar to almost all researchers due to its role in regulating the degradation and recycling of cellular defective or incorrect proteins and toxic components, maintaining body balance and regulating cell health and function. Emerging evidence suggests it has a broad and long-lasting impact on pathophysiological process such as oxidative stress, inflammation, apoptosis, and angiogenesis, involving the alteration of autophagy marker expression and function recovery. Changes in autophagy level are considered a potential therapeutic strategy and have shown promising results in preclinical studies for neuroprotection following traumatic brain injury. However, the relationship between upward or downward autophagy and functional recovery following SCI or TBI is debatable. This article reviews the regulation and role of autophagy in repairing CNS trauma and the intervention effects of autophagy-targeted therapeutic agents to find more and better treatment options for SCI and TBI patients.
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Affiliation(s)
- Shanshan Wei
- Department of Graduate, Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, China
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Bing Leng
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Genquan Yan
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Genquan Yan,
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15
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Wang X, Huang R, Huang B, Li X. S1PR2 Regulates Autophagy Through the AKT/mTOR Pathway to Promote Pathological Damage in Alzheimer's Disease. J Alzheimers Dis 2023; 96:1489-1504. [PMID: 38007654 DOI: 10.3233/jad-230533] [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] [Indexed: 11/27/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is a fatal and debilitating neurodegenerative disease. Sphingosine-1-phosphate receptor 2 (S1PR2), one of the receptors of S1P, is a key regulatory factor for various diseases. OBJECTIVE This study aimed to explore the role and possible mechanism of S1PR2 in AD. METHODS S1PR2 expression in the AD mice was detected, and after intervening S1PR2 expression with sh-S1PR2 in AD mice, the behavioral changes, pathological lesions of the hippocampus, autophagy level, and AKT/mTOR pathway activation were analyzed. Furthermore, SH-SY5Y cells were induced by Aβ25-35 to construct an AD cell model, and the effects of sh-S1PR2 on proliferation, apoptosis, autophagy, and AKT/mTOR pathway of AD cells were investigated. In addition, the effects of pathway inhibitor rapamycin on model cells were further analyzed. RESULTS The expression of S1PR2 was significantly increased in AD mice, the sh-S1PR2 significantly improved behavioral dysfunction, alleviated pathological injury of the hippocampus, increased the number of neurons, and inhibited Aβ production and p-tau expression, showing a positive effect on the AD pathology. In addition, silencing of S1PR2 expression significantly promoted the autophagy level and inhibited the activation of the AKT/mTOR pathway in AD model mice. In vitro experiments further confirmed that sh-S1PR2 promoted cell proliferation, inhibited apoptosis, relieved cytopathology, promoted autophagy, and inhibited the activation of the AKT/mTOR pathway in the cell model. The use of rapamycin further confirmed the role of AKT/mTOR pathway-mediated autophagy in the regulation of AD by S1PR2. CONCLUSION S1PR2 promoted AD pathogenesis by inhibiting autophagy through the activation of AKT/mTOR pathway.
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Affiliation(s)
- Xiaoping Wang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Rui Huang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Bin Huang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Xiaojia Li
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
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