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Davis CK, Bathula S, Jeong S, Arruri V, Choi J, Subramanian S, Ostrom CM, Vemuganti R. An antioxidant and anti-ER stress combination therapy elevates phosphorylation of α-Syn at serine 129 and alleviates post-TBI PD-like pathology in a sex-specific manner in mice. Exp Neurol 2024; 377:114795. [PMID: 38657855 DOI: 10.1016/j.expneurol.2024.114795] [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: 02/22/2024] [Revised: 04/13/2024] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
Clinical studies have shown that traumatic brain injury (TBI) increases the onset of Parkinson's disease (PD) in later life by >50%. Oxidative stress, endoplasmic reticulum (ER) stress, and inflammation are the major drivers of both TBI and PD pathologies. We presently evaluated if curtailing oxidative stress and ER stress concomitantly using a combination of apocynin and tert-butylhydroquinone and salubrinal during the acute stage after TBI in mice reduces the severity of late-onset PD-like pathology. The effect of multiple low doses of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on post-TBI neurodegeneration was also evaluated. The combo therapy elevated the level of phosphorylation at serine 129 (pS129) of α-Syn in the pericontusional cortex of male mice at 72 h post-TBI. Motor and cognitive deficits induced by TBI lasted at least 3 months and the combo therapy curtailed these deficits in both sexes. At 3 months post-TBI, male mice given combo therapy exhibited significantly lesser α-Syn aggregates in the SN and higher TH+ cells in the SNpc, compared to vehicle control. However, the aggregate number was not significantly different between groups of female mice. Moreover, TBI-induced loss of TH+ cells was negligible in female mice irrespective of treatment. The MPTP treatment aggravated PD-like pathology in male mice but had a negligible effect on the loss of TH+ cells in female mice. Thus, the present study indicates that mitigation of TBI-induced oxidative stress and ER stress at the acute stage could potentially reduce the risk of post-TBI PD-like pathology at least in male mice, plausibly by elevating pS129-α-Syn level.
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Affiliation(s)
- Charles K Davis
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | | | - Soomin Jeong
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA; Neuroscience Training Program, University of Wisconsin, Madison, WI, USA
| | - Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Jeongwoo Choi
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Shruti Subramanian
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Carlie M Ostrom
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA; Neuroscience Training Program, University of Wisconsin, Madison, WI, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI, USA.
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2
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Zhang N, Nao J, Zhang S, Dong X. Novel insights into the activating transcription factor 4 in Alzheimer's disease and associated aging-related diseases: Mechanisms and therapeutic implications. Front Neuroendocrinol 2024:101144. [PMID: 38797197 DOI: 10.1016/j.yfrne.2024.101144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Ageing is inherent to all human beings, most mechanistic explanations of ageing results from the combined effects of various physiological and pathological processes. Additionally, aging pivotally contributes to several chronic diseases. Activating transcription factor 4 (ATF4), a member of the ATF/cAMP response element-binding protein family, has recently emerged as a pivotal player owing to its indispensable role in the pathophysiological processes of Alzheimer's disease and aging-related diseases. Moreover, ATF4 is integral to numerous biological processes. Therefore, this article aims to comprehensively review relevant research on the role of ATF4 in the onset and progression of aging-related diseases, elucidating its potential mechanisms and therapeutic approaches. Our objective is to furnish scientific evidence for the early identification of risk factors in aging-related diseases and pave the way for new research directions for their treatment. By elucidating the signaling pathway network of ATF4 in aging-related diseases, we aspire to gain a profound understanding of the molecular and cellular mechanisms, offering novel strategies for addressing aging and developing related therapeutics.
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Affiliation(s)
- Nan Zhang
- Department of Neurology, the Seventh Clinical College of China Medical University, No. 24 Central Street, Xinfu District, Fushun 113000, Liaoning, China.
| | - Jianfei Nao
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Shun Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
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3
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Yang Y, Lu D, Wang M, Liu G, Feng Y, Ren Y, Sun X, Chen Z, Wang Z. Endoplasmic reticulum stress and the unfolded protein response: emerging regulators in progression of traumatic brain injury. Cell Death Dis 2024; 15:156. [PMID: 38378666 PMCID: PMC10879178 DOI: 10.1038/s41419-024-06515-x] [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: 10/17/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/22/2024]
Abstract
Traumatic brain injury (TBI) is a common trauma with high mortality and disability rates worldwide. However, the current management of this disease is still unsatisfactory. Therefore, it is necessary to investigate the pathophysiological mechanisms of TBI in depth to improve the treatment options. In recent decades, abundant evidence has highlighted the significance of endoplasmic reticulum stress (ERS) in advancing central nervous system (CNS) disorders, including TBI. ERS following TBI leads to the accumulation of unfolded proteins, initiating the unfolded protein response (UPR). Protein kinase RNA-like ER kinase (PERK), inositol-requiring protein 1 (IRE1), and activating transcription factor 6 (ATF6) are the three major pathways of UPR initiation that determine whether a cell survives or dies. This review focuses on the dual effects of ERS on TBI and discusses the underlying mechanisms. It is suggested that ERS may crosstalk with a series of molecular cascade responses, such as mitochondrial dysfunction, oxidative stress, neuroinflammation, autophagy, and cell death, and is thus involved in the progression of secondary injury after TBI. Hence, ERS is a promising candidate for the management of TBI.
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Affiliation(s)
- Yayi Yang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu Province, China
| | - Dengfeng Lu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Menghan Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu Province, China
| | - Guangjie Liu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Yun Feng
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu Province, China
| | - Yubo Ren
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Xiaoou Sun
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China.
| | - Zhouqing Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China.
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188Shizi Street, Suzhou, 215006, Jiangsu Province, China.
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Shaik MG, Joshi SV, Akunuri R, Rana P, Rahman Z, Polomoni A, Yaddanapudi VM, Dandekar MP, Srinivas N. Small molecule inhibitors of NLRP3 inflammasome and GSK-3β in the management of traumatic brain injury: A review. Eur J Med Chem 2023; 259:115718. [PMID: 37573828 DOI: 10.1016/j.ejmech.2023.115718] [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: 11/10/2022] [Revised: 07/28/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
Traumatic brain injury (TBI) is a debilitating mental condition which causes physical disability and morbidity worldwide. TBI may damage the brain by direct injury that subsequently triggers a series of neuroinflammatory events. The activation of NLRP3 inflammasome and dysregulated host immune system has been documented in various neurological disorders such as TBI, ischemic stroke and multiple sclerosis. The activation of NLRP3 post-TBI increases the production of pro-inflammatory cytokines and caspase-1, which are major drivers of neuroinflammation and apoptosis. Similarly, GSK-3β regulates apoptosis through tyrosine kinase and canonical Wnt signalling pathways. Thus, therapeutic targeting of NLRP3 inflammasome and GSK-3β has emerged as promising strategies for regulating the post-TBI neuroinflammation and neurobehavioral disturbances. In this review, we discuss the identification & development of several structurally diverse and pharmacologically interesting small molecule inhibitors for targeting the NLRP3 inflammasome and GSK-3β in the management of TBI.
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Affiliation(s)
- Mahammad Ghouse Shaik
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Swanand Vinayak Joshi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ravikumar Akunuri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India; Ellen and Ronald Caplan Cancer Center, The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Preeti Rana
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India
| | - Anusha Polomoni
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India.
| | - Nanduri Srinivas
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India.
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Zhu Y, Zheng P, Lin Y, Wang J, You W, Wang Y, Zheng H, Wen L, Yang X. The alteration of serum bile acid profile among traumatic brain injury patients: a small-scale prospective study. J Clin Biochem Nutr 2023; 73:97-102. [PMID: 37534094 PMCID: PMC10390815 DOI: 10.3164/jcbn.23-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/03/2023] [Indexed: 08/04/2023] Open
Abstract
Traumatic brain injury is one of the major causes of morbidity and mortality worldwide. With the development of bile acids as a potential treatment, to identify the influence of traumatic brain injury on bile acid metabolism shows growing importance. This present study did a preliminary exploration of the bile acid profile alteration among traumatic brain injury patients. In total, 14 patients and 7 healthy volunteers were enrolled. The bile acid profile of the blood samples were detected by an Ultra-performance Liquid Chromatography Mass Spectrometer/Mass Spectrometer system. It was found that 6 bile acids were statistically decreased in traumatic brain injury patients comparing with healthy volunteers: glycocholic acid (median level 44.4 ng/ml vs 98.7 ng/ml, p = 0.003), taurocholic acid (median level 10.9 ng/ml vs 19.5 ng/ml, p = 0.006), glycoursodeoxycholic acid (median level 17.4 ng/ml vs 71.4 ng/ml, p = 0.001), ursodeoxycholic acid (median level <1 ng/ml vs 32.4 ng/ml, p = 0.002), taurochenodeoxycholic acid (median level <1 ng/ml vs 53.6 ng/ml, p = 0.003) and glycochenodeoxycholic acid (GCDCA, median level 160 ng/ml vs 364 ng/ml, p<0.001). In conclusion, traumatic brain injury events are able to induce bile acid metabolism alteration in plasma and might cause reduction in glycocholic, taurocholic, glycoursodeoxycholic, ursodeoxycholic, taurochenodeoxycholic and glycochenodeoxycholic acid levels.
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Affiliation(s)
- Yuanrun Zhu
- The First Affiliated Hospital, School of Medicine, Zhejiang University, 1367 West Wenyi Rd., Hangzhou, Zhejiang Province 310003, China
| | - Peidong Zheng
- Zhejiang University School of Medicine, 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310003, China
| | - Yajun Lin
- Zhejiang University School of Medicine, 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310003, China
| | - Juehan Wang
- Zhejiang University School of Medicine, 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310003, China
| | - Wendong You
- Zhejiang University School of Medicine, 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310003, China
- The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Rd., Fuzhou, Fujian Province 350000, China
| | - Yadong Wang
- The First Affiliated Hospital, School of Medicine, Zhejiang University, 1367 West Wenyi Rd., Hangzhou, Zhejiang Province 310003, China
| | - Huiqing Zheng
- Zhejiang University School of Medicine, 866 Yuhangtang Rd., Hangzhou, Zhejiang Province 310003, China
| | - Liang Wen
- The First Affiliated Hospital, School of Medicine, Zhejiang University, 1367 West Wenyi Rd., Hangzhou, Zhejiang Province 310003, China
| | - Xiaofeng Yang
- The First Affiliated Hospital, School of Medicine, Zhejiang University, 1367 West Wenyi Rd., Hangzhou, Zhejiang Province 310003, China
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Mi L, Min X, Shi M, Liu L, Zhang Y, Zhu Y, Li P, Chai Y, Chen F, Deng Q, Zhang S, Zhang J, Chen X. Neutrophil extracellular traps aggravate neuronal endoplasmic reticulum stress and apoptosis via TLR9 after traumatic brain injury. Cell Death Dis 2023; 14:374. [PMID: 37365190 DOI: 10.1038/s41419-023-05898-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 06/01/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023]
Abstract
Endoplasmic reticulum (ER) stress and ER stress-mediated apoptosis play an important role during secondary brain damage after traumatic brain injury (TBI). Increased neutrophil extracellular traps (NETs) formation has been demonstrated to be associated with neurological damage after TBI. However, the correlation between ER stress and NETs remains unclear, and the specific function of NETs in neurons has not been defined. In this study, we found that the levels of NETs circulating biomarkers were remarkably elevated in the plasma of TBI patients. We then inhibited NETs formation by peptidylarginine deiminase 4 (PAD4, a critical enzyme for NETs formation) deficiency and discovered that ER stress activation and ER stress-mediated neuronal apoptosis were reduced. The degradation of NETs via DNase I showed similar outcomes. Furthermore, overexpression of PAD4 aggravated neuronal ER stress and ER stress-associated apoptosis, while TLR9 antagonist administration abrogated the damage caused by NETs. In addition to in vivo experiments, in vitro experiments revealed that treatment with a TLR9 antagonist alleviated NETs-induced ER stress and apoptosis in HT22 cells. Collectively, our results indicated that ER stress as well as the accompanying neuronal apoptosis can be ameliorated by disruption of NETs and that suppression of the TLR9-ER stress signaling pathway may contribute to positive outcomes after TBI.
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Affiliation(s)
- Liang Mi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Xiaobin Min
- Department of Neurosurgery, Baodi Clinical College, Tianjin Medical University, Baodi, Tianjin, P.R. China
| | - Mingming Shi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China.
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China.
| | - Liang Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Yanfeng Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Yanlin Zhu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Peng Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Yan Chai
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Fanglian Chen
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China
| | - Quanjun Deng
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China.
| | - Shu Zhang
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China.
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China.
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China.
| | - Xin Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China.
- Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, P.R. China.
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Li MC, Tian Q, Liu S, Han SM, Zhang W, Qin XY, Chen JH, Liu CL, Guo YJ. The mechanism and relevant mediators associated with neuronal apoptosis and potential therapeutic targets in subarachnoid hemorrhage. Neural Regen Res 2023; 18:244-252. [PMID: 35900398 PMCID: PMC9396483 DOI: 10.4103/1673-5374.346542] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Subarachnoid hemorrhage (SAH) is a dominant cause of death and disability worldwide. A sharp increase in intracranial pressure after SAH leads to a reduction in cerebral perfusion and insufficient blood supply for neurons, which subsequently promotes a series of pathophysiological responses leading to neuronal death. Many previous experimental studies have reported that excitotoxicity, mitochondrial death pathways, the release of free radicals, protein misfolding, apoptosis, necrosis, autophagy, and inflammation are involved solely or in combination in this disorder. Among them, irreversible neuronal apoptosis plays a key role in both short- and long-term prognoses after SAH. Neuronal apoptosis occurs through multiple pathways including extrinsic, mitochondrial, endoplasmic reticulum, p53 and oxidative stress. Meanwhile, a large number of blood contents enter the subarachnoid space after SAH, and the secondary metabolites, including oxygenated hemoglobin and heme, further aggravate the destruction of the blood-brain barrier and vasogenic and cytotoxic brain edema, causing early brain injury and delayed cerebral ischemia, and ultimately increasing neuronal apoptosis. Even there is no clear and effective therapeutic strategy for SAH thus far, but by understanding apoptosis, we might excavate new ideas and approaches, as targeting the upstream and downstream molecules of apoptosis-related pathways shows promise in the treatment of SAH. In this review, we summarize the existing evidence on molecules and related drugs or molecules involved in the apoptotic pathway after SAH, which provides a possible target or new strategy for the treatment of SAH.
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Benakis C, Liesz A. The gut-brain axis in ischemic stroke: its relevance in pathology and as a therapeutic target. Neurol Res Pract 2022; 4:57. [PMCID: PMC9673423 DOI: 10.1186/s42466-022-00222-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/27/2022] [Indexed: 11/19/2022] Open
Abstract
The gut contains the largest reservoir of microorganisms of the human body, termed as the gut microbiota which emerges as a key pathophysiological factor in health and disease. The gut microbiota has been demonstrated to influence various brain functions along the “gut-brain axis”. Stroke leads to intestinal dysmotility and leakiness of the intestinal barrier which are associated with change of the gut microbiota composition and its interaction with the human host. Growing evidence over the past decade has demonstrated an important role of these post-stroke changes along the gut-brain axis to contribute to stroke pathology and be potentially druggable targets for future therapies. The impact of the gut microbiota on brain health and repair after stroke might be attributed to the diverse functions of gut bacteria in producing neuroactive compounds, modulating the host’s metabolism and immune status. Therefore, a better understanding on the gut-brain axis after stroke and its integration in a broader concept of stroke pathology could open up new avenues for stroke therapy. Here, we discuss current concepts from preclinical models and human studies on the bi-directional communication along the microbiota-gut-brain axis in stroke.
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Affiliation(s)
- Corinne Benakis
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Arthur Liesz
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany ,grid.452617.3Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
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Tauroursodeoxycholic Acid Reduces Neuroinflammation but Does Not Support Long Term Functional Recovery of Rats with Spinal Cord Injury. Biomedicines 2022; 10:biomedicines10071501. [PMID: 35884805 PMCID: PMC9313003 DOI: 10.3390/biomedicines10071501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
The bile acid tauroursodeoxycholic acid (TUDCA) reduces cell death under oxidative stress and inflammation. Implants of bone marrow-derived stromal cells (bmSC) are currently under investigation in clinical trials of spinal cord injury (SCI). Since cell death of injected bmSC limits the efficacy of this treatment, the cytoprotective effect of TUDCA may enhance its benefit. We therefore studied the therapeutic effect of TUDCA and its use as a combinatorial treatment with human bmSC in a rat model of SCI. A spinal cord contusion injury was induced at thoracic level T9. Treatment consisted of i.p. injections of TUDCA alone or in combination with one injection of human bmSC into the cisterna magna. The recovery of motor functions was assessed during a surveillance period of six weeks. Biochemical and histological analysis of spinal cord tissue confirmed the anti-inflammatory activity of TUDCA. Treatment improved the recovery of autonomic bladder control and had a positive effect on motor functions in the subacute phase, however, benefits were only transient, such that no significant differences between vehicle and TUDCA-treated animals were observed 1–6 weeks after the lesion. Combinatorial treatment with TUDCA and bmSC failed to have an additional effect compared to treatment with bmSC only. Our data do not support the use of TUDCA as a treatment of SCI.
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Mahmoudi A, Heydari S, Markina YV, Barreto GE, Sahebkar A. Role of statins in regulating molecular pathways following traumatic brain injury: A system pharmacology study. Biomed Pharmacother 2022; 153:113304. [PMID: 35724514 DOI: 10.1016/j.biopha.2022.113304] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 11/28/2022] Open
Abstract
Traumatic brain injury (TBI) is a serious disorder with debilitating physical and psychological complications. Previous studies have indicated that genetic factors have a critical role in modulating the secondary phase of injury in TBI. Statins have interesting pleiotropic properties such as antiapoptotic, antioxidative, and anti-inflammatory effects, which make them a suitable class of drugs for repurposing in TBI. In this study, we aimed to explore how statins modulate proteins and pathways involved in TBI using system pharmacology. We first explored the target associations with statins in two databases to discover critical clustering groups, candidate hub and critical hub genes in the network of TBI, and the possible connections of statins with TBI-related genes. Our results showed 1763 genes associated with TBI. Subsequently, the analysis of centralities in the PPI network displayed 55 candidate hub genes and 15 hub genes. Besides, MCODE analysis based on threshold score:10 determined four modular clusters. Intersection analysis of genes related to TBI and statins demonstrated 204 shared proteins, which suggested that statins influence 31 candidate hub and 9 hub genes. Moreover, statins had the highest interaction with MCODE1. The biological processes of the 31 shared proteins are related to gene expression, inflammation, antioxidant activity, and cell proliferation. Biological enriched pathways showed Programmed Cell Death proteins, AGE-RAGE signaling pathway, C-type lectin receptor signalling pathway, and MAPK signaling pathway as top clusters. In conclusion, statins could target several critical post-TBI genes mainly involved in inflammation and apoptosis, supporting the previous research results as a potential therapeutic agent.
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Affiliation(s)
- Ali Mahmoudi
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9177899191, the Islamic Republic of Iran; Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, the Islamic Republic of Iran
| | - Sahar Heydari
- Department of Physiology and Pharmacology, Faculty of Medicine, Sabzevar University of Medical Sciences, the Islamic Republic of Iran; Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, the Islamic Republic of Iran
| | - Yuliya V Markina
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Avtsyn Research Institute of Human Morphology of FSBI "Petrovsky National Research Center of Surgery", 3 Tsyurupy Str., 117418, Moscow, the Russian Federation
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland.
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, the Islamic Republic of Iran; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, the Islamic Republic of Iran; Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, the Islamic Republic of Iran.
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11
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Shulpekova Y, Zharkova M, Tkachenko P, Tikhonov I, Stepanov A, Synitsyna A, Izotov A, Butkova T, Shulpekova N, Lapina N, Nechaev V, Kardasheva S, Okhlobystin A, Ivashkin V. The Role of Bile Acids in the Human Body and in the Development of Diseases. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113401. [PMID: 35684337 PMCID: PMC9182388 DOI: 10.3390/molecules27113401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022]
Abstract
Bile acids are specific and quantitatively important organic components of bile, which are synthesized by hepatocytes from cholesterol and are involved in the osmotic process that ensures the outflow of bile. Bile acids include many varieties of amphipathic acid steroids. These are molecules that play a major role in the digestion of fats and the intestinal absorption of hydrophobic compounds and are also involved in the regulation of many functions of the liver, cholangiocytes, and extrahepatic tissues, acting essentially as hormones. The biological effects are realized through variable membrane or nuclear receptors. Hepatic synthesis, intestinal modifications, intestinal peristalsis and permeability, and receptor activity can affect the quantitative and qualitative bile acids composition significantly leading to extrahepatic pathologies. The complexity of bile acids receptors and the effects of cross-activations makes interpretation of the results of the studies rather difficult. In spite, this is a very perspective direction for pharmacology.
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Affiliation(s)
- Yulia Shulpekova
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Maria Zharkova
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Pyotr Tkachenko
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Igor Tikhonov
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Alexander Stepanov
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 119435 Moscow, Russia; (A.S.); (A.I.); (T.B.)
| | - Alexandra Synitsyna
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 119435 Moscow, Russia; (A.S.); (A.I.); (T.B.)
- Correspondence: ; Tel.: +7-499-764-98-78
| | - Alexander Izotov
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 119435 Moscow, Russia; (A.S.); (A.I.); (T.B.)
| | - Tatyana Butkova
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 119435 Moscow, Russia; (A.S.); (A.I.); (T.B.)
| | | | - Natalia Lapina
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Vladimir Nechaev
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Svetlana Kardasheva
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Alexey Okhlobystin
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
| | - Vladimir Ivashkin
- Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; (Y.S.); (M.Z.); (P.T.); (I.T.); (N.L.); (V.N.); (S.K.); (A.O.); (V.I.)
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12
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Shi M, Liu L, Min X, Mi L, Chai Y, Chen F, Wang J, Yue S, Zhang J, Deng Q, Chen X. Activation of Sigma-1 Receptor Alleviates ER-Associated Cell Death and Microglia Activation in Traumatically Injured Mice. J Clin Med 2022; 11:2348. [PMID: 35566476 PMCID: PMC9102000 DOI: 10.3390/jcm11092348] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/06/2022] [Accepted: 04/19/2022] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress and unfolded protein response (UPR) is associated with neuroinflammation and subsequent cell death following traumatic brain injury (TBI). The sigma-1 receptor (Sig-1R) acts as a dynamic pluripotent modulator of fundamental cellular processes at the mitochondria-associated membranes (MAMs). The activation of Sig-1R is neuroprotective in a variety of central nervous system diseases, but its impact on ER stress induced by traumatic brain injury is not known. This study investigated the role of Sig-1R in regulating the ER stress-mediated microglial activation and programmed cell death (apoptosis and pyroptosis) induced by TBI. METHODS Ten human brain tissues were obtained from The Tianjin Medical University General Hospital. Four normal brain tissues were obtained from patients who underwent surgery for cerebral vascular malformation, through which peripheral brain tissues were isolated. Six severe TBI tissues were from patients with brain injury caused by accidents. None of the patients had any other known neurological disorders. Mice with Sig-1R deletion using CRISPR technology were subjected to controlled cortical impact-induced injury. In parallel, wild type C57BL/6J mice were analyzed for outcomes after they were exposed to TBI and received the Sig-1R agonist PRE-084 (10 mg/kg daily for three days) either alone or in combination with the Sig-1R antagonist BD-1047 (10 mg/kg). RESULTS The expression of Sig-1R and the 78 kDa glucose-regulated protein, a known UPR marker, were significantly elevated in the injured cerebral tissues from TBI patients and mice subjected to TBI. PRE-084 improved neurological function, restored the cerebral cortical perfusion, and ameliorated and brain edema in C57BL/6J mice subjected to TBI by reducing endoplasmic reticulum stress-mediated apoptosis, pyroptosis, and microglia activation. The effect of PRE-084 was abolished in mice receiving Sig-1R antagonist BD-1047. CONCLUSIONS ER stress and UPR were upregulated in TBI patients and mice subjected to TBI. Sig-1R activation by the exogenous activator PRE-084 attenuated microglial cells activation, reduced ER stress-associated programmed cell death, and restored cerebrovascular and neurological function in TBI mice.
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Affiliation(s)
- Mingming Shi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Liang Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Xiaobin Min
- Baodi Clinical College, Tianjin Medical University, Tianjin 300052, China;
| | - Liang Mi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Yan Chai
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Fanglian Chen
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Jianhao Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Shuyuan Yue
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Quanjun Deng
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
| | - Xin Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; (M.S.); (L.L.); (L.M.); (J.W.); (S.Y.); (J.Z.)
- Tianjin Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Tianjin 300052, China; (Y.C.); (F.C.)
- Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Ministry of Education, Tianjin 300052, China
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13
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Yang C, Wu Y, Wang L, Li S, Zhou J, Tan Y, Song J, Xing H, Yi K, Zhan Q, Zhao J, Wang Q, Yuan X, Kang C. Glioma-derived exosomes hijack the blood-brain barrier to facilitate nanocapsule delivery via LCN2. J Control Release 2022; 345:537-548. [PMID: 35341902 DOI: 10.1016/j.jconrel.2022.03.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/18/2022] [Accepted: 03/20/2022] [Indexed: 12/15/2022]
Abstract
Exosomes are small extracellular vehicles which could transport genetic materials and proteins between cells. Although there are reports about exosomes crossing the blood-brain barrier (BBB), the underlying mechanisms still need further study. We found that exosomes from primary brain tumors could upregulate the expression of Lipocalin-2 (LCN2) in bEnd.3 brain microvascular endothelial cells (BMVECs). Furthermore, exosomes increased the membrane fluidity of bEnd.3 cells in an LCN2 dependent manner. Both intraperitoneal injection and caudal vein injection of LCN2 increased the number of nanocapsules crossing the BBB. Evans Blue staining revealed that LCN2 does not interrupt the integrity of the BBB, as observed in the traumatic brain injury model. Tandem mass tags quantitative proteomics and bioinformatics analysis revealed that LCN2 is upregulated by exosomes via the JAK-STAT3 pathway, but not delivered from exosomes. Knocking down LCN2 in bEnd.3 cells significantly abrogated the effect of exosomes on BMVEC membrane fluidity. Previously, we have reported that 2-methacryloyloxyethyl phosphorylcholine (MPC) and a peptide crosslinker could encapsulate mAbs to achieve nanocapsules. The nanocapsules containing choline analogs could effectively penetrate the BBB to deliver therapeutic monoclonal antibodies (tAbs) to the glioma. However, the delivered tAbs could be significantly reduced by blocking the release of exosomes from the gliomas. Application of tAb nanocapsules prior to treatment with MK2206, an AKT pathway inhibitor that has been shown to inhibit the production of exosomes, resulted in a better combination. Insights from this study provide a mechanistic framework with regard to how glioblastomas hijack BMVECs using exosomes. In addition, we provide a strategy for maximizing the effect of the choline-containing nanocapsules and MK2206 combination. These results also demonstrate the therapeutic role of tAbs in glioblastoma and brain tumor metastasis, by shedding new light on strategies that can be used for BBB-penetrating therapies.
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Affiliation(s)
- Chao Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China
| | - Ye Wu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China
| | - Lin Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China
| | - Sidi Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Junhu Zhou
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China
| | - Yanli Tan
- Department of Pathology, Medical College of Hebei University, Baoding, Hebei 071000, China; Key Laboratory of Precise Diagnosis and Treatment of Glioma in Hebei Province, Baoding 071000, China
| | - Jia Song
- Medical College of Hebei University, Baoding, Hebei 071000, China; Key Laboratory of Precise Diagnosis and Treatment of Glioma in Hebei Province, Baoding 071000, China
| | - Huike Xing
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Kaikai Yi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China
| | - Qi Zhan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Qixue Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China.
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China; Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government, Tianjin 300052, China.
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14
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Shi M, Chai Y, Zhang J, Chen X. Endoplasmic Reticulum Stress-Associated Neuronal Death and Innate Immune Response in Neurological Diseases. Front Immunol 2022; 12:794580. [PMID: 35082783 PMCID: PMC8784382 DOI: 10.3389/fimmu.2021.794580] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022] Open
Abstract
Neuronal death and inflammatory response are two common pathological hallmarks of acute central nervous system injury and chronic degenerative disorders, both of which are closely related to cognitive and motor dysfunction associated with various neurological diseases. Neurological diseases are highly heterogeneous; however, they share a common pathogenesis, that is, the aberrant accumulation of misfolded/unfolded proteins within the endoplasmic reticulum (ER). Fortunately, the cell has intrinsic quality control mechanisms to maintain the proteostasis network, such as chaperone-mediated folding and ER-associated degradation. However, when these control mechanisms fail, misfolded/unfolded proteins accumulate in the ER lumen and contribute to ER stress. ER stress has been implicated in nearly all neurological diseases. ER stress initiates the unfolded protein response to restore proteostasis, and if the damage is irreversible, it elicits intracellular cascades of death and inflammation. With the growing appreciation of a functional association between ER stress and neurological diseases and with the improved understanding of the multiple underlying molecular mechanisms, pharmacological and genetic targeting of ER stress are beginning to emerge as therapeutic approaches for neurological diseases.
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Affiliation(s)
- Mingming Shi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.,Department of Neurosurgery, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Yan Chai
- Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.,Department of Neurosurgery, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.,Department of Neurosurgery, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Xin Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, China.,Department of Neurosurgery, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
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15
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Chen X, Mi L, Gu G, Gao X, Shi M, Chai Y, Chen F, Yang W, Zhang JN. Dysfunctional ER-mitochondrion coupling is associated with ER stress-induced apoptosis and neurological deficits in a rodent model of severe head injury. J Neurotrauma 2022; 39:560-576. [PMID: 35018820 DOI: 10.1089/neu.2021.0347] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Cellular homeostasis requires critical communications between the endoplasmic reticulum (ER) and mitochondria to maintain the viability of cells. This communication is mediated and maintained by the mitochondria-associated membranes (MAMs) and may be disrupted during acute traumatic brain injury (TBI), leading to structural and functional damages of neurons and supporting cells. To test this hypothesis, we subjected male C57BL/6 mice to severe TBI (sTBI) using a controlled cortical impact (CCI) device. We analyzed the physical ER-mitochondrion contacts in the perilesional cortex using transmission electron microscopy, western blot, and immunofluorescence. We specifically measured changes in the production of reactive oxygen species (ROS) in mitochondria, the unfolded protein response (UPR), the neuroinflammatory response, and ER stress-mediated apoptosis in the traumatic injured cerebral tissue. A modified neurological severity score (mNSS) was used to evaluate neurological function in the sTBI mice. We found that sTBI induced significant reorganizations of MEMs in the cerebral cortex within the first 24 hr post-injury. This ER-mitochondrion coupling was enhanced, reaching its peak level at 6 hrs post-sTBI. This enhanced coupling correlated closely with increases in the expression of the Ca2+ regulatory proteins (IP3R1, VDAC1, GRP75, Sigma-1R), production of ROS, degree of ER stress, levels of UPR, and release of proinflammatory cytokines. Furthermore, the neurological function of sTBI mice was significantly improved by silencing the gene for the ER-mitochondrion tethering factor PACS2, restoring the IP3R1-GRP75-VDAC1 axis of Ca2+ regulation, alleviating mitochondria-derived oxidative stress, suppressing inflammatory response through the PERK/eIF2α/ATF4/CHOP pathway, and inhibiting ER stress and associated apoptosis. These results indicate that dysfunctional ER-mitochondrion coupling might be primarily involved in the neuronal apoptosis and neurological deficits, and modulating the ER-mitochondrion crosstalk might be a novel therapeutic strategy for sTBI.
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Affiliation(s)
- Xin Chen
- Tianjin Medical University General Hospital, 117865, Neurosurgery, 154 Anshan Road, Heping District, Tianjin, Tianjin, China, 300052.,Tianjin Neurological Institute, 230967, 154 Anshan Road, Heping District, Tianjin, China, 300052;
| | - Liang Mi
- Tianjin Medical University General Hospital, 117865, Neurosurgery, Tianjin, Tianjin, China;
| | - Gang Gu
- Tianjin Medical University General Hospital, 117865, Tianjin, Tianjin, China;
| | - Xiangliang Gao
- Tianjin Medical University General Hospital, 117865, Department of Neurosurgery, Tianjin, Tianjin, China;
| | - Mingming Shi
- Tianjin Medical University General Hospital, 117865, Neurosurgery, Tianjin, Tianjin, China;
| | - Yan Chai
- Tianjin Neurological Institute, 230967, Tianjin, China;
| | - Fanglian Chen
- Tianjin Neurological Institute, 230967, Tianjin, Tianjin, China;
| | - Weidong Yang
- Tianjin Medical University General Hospital, 117865, Neurosurgery, Tianjin, Tianjin, China;
| | - Jian-Ning Zhang
- Tianjin Medical University General Hospital, 117865, Neurosurgery, Tianjin, Tianjin, China;
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16
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Chen H, Ma J, Ma X. Administration of tauroursodeoxycholic acid attenuates dexamethasone-induced skeletal muscle atrophy. Biochem Biophys Res Commun 2021; 570:96-102. [PMID: 34274852 DOI: 10.1016/j.bbrc.2021.06.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/29/2021] [Indexed: 12/14/2022]
Abstract
Glucocorticoids are known to induce skeletal muscle atrophy by suppressing protein synthesis and promoting protein degradation. Tauroursodeoxycholic acid (TUDCA) has beneficial effects in several diseases, such as hepatobiliary disorders, hindlimb ischemia and glucocorticoid-induced osteoporosis. However, the effects of TUDCA on glucocorticoid -induced skeletal muscle atrophy remains unknown. Therefore, in the present research, we explored the effects of TUDCA on dexamethasone (DEX)-induced loss and the potential mechanisms involved. We found TUDCA alleviated DEX-induced muscle wasting in C2C12 myotubes, identified by improved myotube differentiation index and expression of myogenin and MHC. And it showed that TUDCA activated the Akt/mTOR/S6K signaling pathway and inhibited FoxO3a transcriptional activity to decreased expression of MuRF1 and Atrogin-1, while blocking Akt by MK2206 blocked these effects of TUDCA on myotubes. Besides, TUDCA also attenuated DEX-induced apoptosis of myotubes. Furthermore, TUDCA was administrated to the mouse model of DEX-induced skeletal muscle atrophy. The results showed that TUDCA improved DEX-induced skeletal muscle atrophy and weakness (identified by increased grip strength and prolonged running exhaustive time) in mice by suppression of apoptosis, reduction of protein degradation and promotion of protein synthesis. Taken together, our research proved for the first time that TUDCA protected against DEX-induced skeletal muscle atrophy not only by improving myogenic differentiation and protein synthesis, but also through decreasing protein degradation and apoptosis of skeletal muscle.
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Affiliation(s)
- Hengting Chen
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Jianxiong Ma
- Tianjin Hospital, Tianjin University, Tianjin, 300072, China
| | - Xinlong Ma
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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17
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Zhu Y, Chen Z, You W, Wang Y, Tu M, Zheng P, Wen L, Yang X. A Retrospective Clinical Analysis of the Serum Bile Acid Alteration Caused by Traumatic Brain Injury. Front Neurol 2021; 12:624378. [PMID: 34512494 PMCID: PMC8424180 DOI: 10.3389/fneur.2021.624378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 07/09/2021] [Indexed: 12/23/2022] Open
Abstract
Traumatic brain injury (TBI) can cause damage to peripheral organ systems, such as digestive organ system, and alterations of gut microbiota in addition to brain injury. Our previous study found that TBI induced gastrointestinal dysfunction accompanied by alterations of bile acid metabolism. Bile acid and its receptors have been reported to play important roles in various neurological diseases. To further examine the changes of bile acid metabolism in TBI patients, we performed a retrospective clinical analysis. In this study, 177 patients were included, and the results showed that TBI patients had more frequent antibiotic use compared with a control group. Regression analysis identified TBI as an independent factor for reduction of serum bile acid level (B = -1.762, p = 0.006), even with antibiotic use taken into a regression model. Sub-group regression analysis of TBI patients showed that antibiotic use was negatively associated with bile acid level, while creatinine and triglyceride were positively associated with bile acid level. In conclusion, these data indicated that TBI could greatly reduce serum bile acid. This study provided preliminary but novel clinical evidence of TBI interfering with bile acid metabolism, and further studies with large sample sizes are needed to validate these findings in the future.
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Affiliation(s)
- Yuanrun Zhu
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zijian Chen
- Zhejiang University School of Medicine, Hangzhou, China.,Shaoxing Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Shaoxing, China
| | - Wendong You
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yadong Wang
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mengdi Tu
- Zhejiang University School of Medicine, Hangzhou, China
| | - Peidong Zheng
- Zhejiang University School of Medicine, Hangzhou, China
| | - Liang Wen
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaofeng Yang
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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18
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Orozco-Aguilar J, Simon F, Cabello-Verrugio C. Redox-Dependent Effects in the Physiopathological Role of Bile Acids. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4847941. [PMID: 34527174 PMCID: PMC8437588 DOI: 10.1155/2021/4847941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/17/2021] [Indexed: 12/17/2022]
Abstract
Bile acids (BA) are recognized by their role in nutrient absorption. However, there is growing evidence that BA also have endocrine and metabolic functions. Besides, the steroidal-derived structure gives BA a toxic potential over the biological membrane. Thus, cholestatic disorders, characterized by elevated BA on the liver and serum, are a significant cause of liver transplant and extrahepatic complications, such as skeletal muscle, central nervous system (CNS), heart, and placenta. Further, the BA have an essential role in cellular damage, mediating processes such as membrane disruption, mitochondrial dysfunction, and the generation of reactive oxygen species (ROS) and oxidative stress. The purpose of this review is to describe the BA and their role on hepatic and extrahepatic complications in cholestatic diseases, focusing on the association between BA and the generation of oxidative stress that mediates tissue damage.
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Affiliation(s)
- Josué Orozco-Aguilar
- Laboratory of Muscle Pathology, Fragility, and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Universidad de Chile, Santiago 8370146, Chile
- Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility, and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
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19
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Saikumar J, Bonini NM. Synergistic effects of brain injury and aging: common mechanisms of proteostatic dysfunction. Trends Neurosci 2021; 44:728-740. [PMID: 34301397 DOI: 10.1016/j.tins.2021.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/26/2021] [Accepted: 06/08/2021] [Indexed: 01/09/2023]
Abstract
The aftermath of TBI is associated with an acute stress response and the accumulation of insoluble protein aggregates. Even after the symptoms of TBI are resolved, insidious molecular processes continue to develop, which often ultimately result in the development of age-associated neurodegenerative disorders. The precise molecular cascades that drive unhealthy brain aging are still largely unknown. In this review, we discuss proteostatic dysfunction as a converging mechanism contributing to accelerated brain aging after TBI. We examine evidence from human tissue and in vivo animal models, spanning both the aging and injury contexts. We conclude that TBI has a sustained debilitating effect on the proteostatic machinery, which may contribute to the accelerated pathological and cognitive hallmarks of aging that are observed following injury.
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Affiliation(s)
- Janani Saikumar
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nancy M Bonini
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.
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20
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Lee DS, Kim JE. Regional specific activations of ERK1/2 and CDK5 differently regulate astroglial responses to ER stress in the rat hippocampus following status epilepticus. Brain Res 2021; 1753:147262. [PMID: 33422538 DOI: 10.1016/j.brainres.2020.147262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/02/2020] [Accepted: 12/24/2020] [Indexed: 01/04/2023]
Abstract
Endoplasmic reticulum (ER) triggers the regional specific astroglial responses to status epilepticus (SE, a prolonged seizure activity). However, the epiphenomena/downstream effecters for ER stress and the mechanism of ER stress signaling in astroglial apoptosis have not been fully understood. In the present study, tunicamycin-induced ER stress resulted in reactive astrogliosis-like events showing astroglial hypertrophy with the elevated extracellular signal-activated protein kinase 1/2 (ERK1/2) and cyclin-dependent kinase 5 (CDK5) phosphorylations in the CA1 region of the rat hippocampus. However, tunicamycin increased CDK5, but not ERK1/2, phosphorylation in the molecular layer of the dentate gyrus. Roscovitine (a CDK5 inhibitor) suppressed the effect of tunicamycin in the molecular layer of the dentate gyrus and the CA1 region, while U0126 (an ERK1/2 inhibitor) reversed it in the CA1 region. Salubrinal (an ER stress inhibitor) abrogated activations of ERK1/2 and CDK5, and attenuated reactive astrogliosis in the CA1 region and astroglial apoptosis in the molecular layer of the dentate gyrus following status epilepticus (SE, a prolonged seizure activity). These findings indicate that ER stress may induce reactive astrogliosis via ERK1/2-mediated CDK5 activation in the CA1 region. In the molecular layer of the dentate gyrus, however, ER stress may participate in astroglial apoptosis through ERK1/2-independent CDK5 activation following SE.
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Affiliation(s)
- Duk-Shin Lee
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon, Kangwon-Do 24252, South Korea
| | - Ji-Eun Kim
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon, Kangwon-Do 24252, South Korea.
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21
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Wang J, Deng X, Xie Y, Tang J, Zhou Z, Yang F, He Q, Cao Q, Zhang L, He L. An Integrated Transcriptome Analysis Reveals IGFBP7 Upregulation in Vasculature in Traumatic Brain Injury. Front Genet 2021; 11:599834. [PMID: 33505428 PMCID: PMC7831608 DOI: 10.3389/fgene.2020.599834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 11/30/2020] [Indexed: 01/08/2023] Open
Abstract
Vasculature plays critical roles in the pathogenesis and neurological repair of traumatic brain injury (TBI). However, how vascular endothelial cells respond to TBI at the molecular level has not been systematically reviewed. Here, by integrating three transcriptome datasets including whole cortex of mouse brain, FACS-sorted mouse brain endothelial cells, and single cell sequencing of mouse brain hippocampus, we revealed the key molecular alteration of endothelial cells characterized by increased Myc targets and Epithelial-Mesenchymal Transition signatures. In addition, immunofluorescence staining of patients’ samples confirmed that IGFBP7 was up-regulated in vasculature in response to TBI. TGFβ1, mainly derived from microglia and endothelial cells, sufficiently induces IGFBP7 expression in cultured endothelial cells, and is significantly upregulated in response to TBI. Our results identified IGFBP7 as a potential biomarker of vasculature in response to TBI, and indicate that TGFβ signaling may contribute to the upregulation of IGFBP7 in the vasculature.
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Affiliation(s)
- Jianhao Wang
- Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Ministry of Education and Tianjin City, Tianjin, China
| | - Xiangyi Deng
- Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Ministry of Education and Tianjin City, Tianjin, China
| | - Yuan Xie
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Jiefu Tang
- Trauma Center, First Affiliated Hospital of Hunan University of Medicine, Huaihua, China
| | - Ziwei Zhou
- Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Ministry of Education and Tianjin City, Tianjin, China
| | - Fan Yang
- Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Ministry of Education and Tianjin City, Tianjin, China
| | - Qiyuan He
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Qingze Cao
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Lei Zhang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China.,Precision Medicine Center, The Second People's Hospital of Huaihua, Huaihua, China
| | - Liqun He
- Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Ministry of Education and Tianjin City, Tianjin, China.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
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22
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Crilly S, Withers SE, Allan SM, Parry-Jones AR, Kasher PR. Revisiting promising preclinical intracerebral hemorrhage studies to highlight repurposable drugs for translation. Int J Stroke 2020; 16:123-136. [PMID: 33183165 PMCID: PMC7859586 DOI: 10.1177/1747493020972240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Intracerebral hemorrhage is a devastating global health burden with limited treatment options and is responsible for 49% of 6.5 million annual stroke-related deaths comparable to ischemic stroke. Despite the impact of intracerebral hemorrhage, there are currently no effective treatments and so weaknesses in the translational pipeline must be addressed. There have been many preclinical studies in intracerebral hemorrhage models with positive outcomes for potential therapies in vivo, but beyond advancing the understanding of intracerebral hemorrhage pathology, there has been no translation toward successful clinical application. Multidisciplinary preclinical research, use of multiple models, and validation in human tissue are essential for effective translation. Repurposing of therapeutics for intracerebral hemorrhage may be the most promising strategy to help relieve the global health burden of intracerebral hemorrhage. Here, we have reviewed the existing literature to highlight repurposable drugs with successful outcomes in preclinical models of intracerebral hemorrhage that have realistic potential for development into the clinic for intracerebral hemorrhage.
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Affiliation(s)
- Siobhan Crilly
- Division of Neuroscience and Experimental Psychology, Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - Sarah E Withers
- Division of Neuroscience and Experimental Psychology, Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - Stuart M Allan
- Division of Neuroscience and Experimental Psychology, Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - Adrian R Parry-Jones
- Division of Cardiovascular Sciences, Lydia Becker Institute of Immunology and Inflammation, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK.,Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, UK
| | - Paul R Kasher
- Division of Neuroscience and Experimental Psychology, Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
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23
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Xiong J, Gao Y, Li X, Li K, Li Q, Shen J, Han Z, Zhang J. Losartan Treatment Could Improve the Outcome of TBI Mice. Front Neurol 2020; 11:992. [PMID: 33178092 PMCID: PMC7593661 DOI: 10.3389/fneur.2020.00992] [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: 02/23/2020] [Accepted: 07/29/2020] [Indexed: 12/25/2022] Open
Abstract
Traumatic brain injury frequently leads to serious mortality and physical disability, yet effective treatments remains insufficient. TBI always leads to a series of secondary brain injuries including neuronal apoptosis, continuous inflammation, endoplasmic reticulum stress, and disruption of the blood-brain barrier. Sartans that block angiotensin II type 1 receptors are strongly neuroprotective, neurorestorative and anti-inflammatory. However, whether losartan, a FDA-approved and widely used drug for regulating blood pressure, is beneficial for improving the prognosis of TBI need more evidence. Through a controlled cortical impact injury mice model, we confirmed that losartan treatment could ameliorate CCI-induced secondary brain injury. We found that losartan treatment decreased brain lesion volume, neuronal apoptosis and ER stress protein ATF4 and eIF2α. Moreover, our results showed that losartan also improved neurological and motor function. It is worth pointing out that losartan increased the expression of tight junction proteins ZO-1 and alleviated brain edema and blood brain barrier leakage. Additionally, losartan inhibited pro-inflammatory factor TNF-α and improve anti-inflammatory factor IL-10. Taken together, our data demonstrated that losartan could improve the prognosis of TBI and may be a promising therapeutic method for mitigating TBI.
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Affiliation(s)
- Jianhua Xiong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yalong Gao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaotian Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Kai Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Qifeng Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jun Shen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhenying Han
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
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24
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Dong Y, Yang S, Fu B, Liu F, Zhou S, Ding H, Ma W. Mechanism of tauroursodeoxycholic acid-mediated neuronal protection after acute spinal cord injury through AKT signaling pathway in rats. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2020; 13:2218-2227. [PMID: 33042326 PMCID: PMC7539877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To explore themechanism of tauroursodeoxycholic acid- (TUDCA) mediated neuronal protection after acute spinal cord injury (ASCI) in rats. Methods: ASCI rat model was established following modified Allen's weight-drop method and these rats were assigned to sham group (received sham operation), model group (ASCI rats), TUDCA group (ASCI rats received TUDCA treatment), MK2206 group (ASCI rats received AKT inhibitor MK2206 orally) and TUDCA + MK2206 group. Motor function of rats was evaluated using Basso Beattie Bresnahan (BBB) method. Hematoxylin-eosin (H&E) staining was used to detect histopathologic changes in the spinal cord and TUNEL fluorescence staining was used to check apoptosis. Real time fluorescence quantitative polymerase chain reaction (qRT-PCR) and western blot were employed to detect the production of AKT pathway related factors, apoptosis related factors (Bax, Bcl-2, caspase-3), autophagy related factor Beclin-1 and endoplasmic reticulum (ER) stress related factors (IRE1, Chop, ATF6) in spinal cord of rats. RESULTS Compared to the rats in the sham group, rats in ASCI group had decreased BBB scores (P<0.05), more significant tissue edema, structural cavity and apoptosis. Compared to rats in sham group, AKT pathway was inactivated in ASCI rats and was activated by TUDCA treatment (P<0.05). Compared to sham group, expressions of ER stress-related factors were increased, apoptosis was largely induced in other four groups, and expression of Beclin-1 was increased in the model group (P<0.05). TUDCA increased the expression of Beclin-1 and Bcl-2, and inhibited the expression of Bax, Caspase-3, and ER stress-related factors, thus suppressing apoptosis (P<0.05). Treatment by MK2206 had contrary effects and protective effects of TUDCA on ASCI rats could be counteracted by MK2206. CONCLUSION TUDCA can significantly improve the neural damage, enhance neuron autophagy, alleviate ER stress, and inhibit apoptosis in ASCI rats, by activating the AKT signaling pathway.
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Affiliation(s)
- Yi Dong
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Shengsen Yang
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Bin Fu
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Fei Liu
- Department of Emergency, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Shina Zhou
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Huiqiang Ding
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
| | - Wenxin Ma
- Department of Spine Orthopedics, General Hospital of Ningxia Medical UniversityYinchuan, Ningxia Hui Autonomous Region, China
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25
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Grant SM, DeMorrow S. Bile Acid Signaling in Neurodegenerative and Neurological Disorders. Int J Mol Sci 2020; 21:E5982. [PMID: 32825239 PMCID: PMC7503576 DOI: 10.3390/ijms21175982] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/13/2022] Open
Abstract
Bile acids are commonly known as digestive agents for lipids. The mechanisms of bile acids in the gastrointestinal track during normal physiological conditions as well as hepatic and cholestatic diseases have been well studied. Bile acids additionally serve as ligands for signaling molecules such as nuclear receptor Farnesoid X receptor and membrane-bound receptors, Takeda G-protein-coupled bile acid receptor and sphingosine-1-phosphate receptor 2. Recent studies have shown that bile acid signaling may also have a prevalent role in the central nervous system. Some bile acids, such as tauroursodeoxycholic acid and ursodeoxycholic acid, have shown neuroprotective potential in experimental animal models and clinical studies of many neurological conditions. Alterations in bile acid metabolism have been discovered as potential biomarkers for prognosis tools as well as the expression of various bile acid receptors in multiple neurological ailments. This review explores the findings of recent studies highlighting bile acid-mediated therapies and bile acid-mediated signaling and the roles they play in neurodegenerative and neurological diseases.
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Affiliation(s)
- Stephanie M. Grant
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA;
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Sharon DeMorrow
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA;
- Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
- Research Division, Central Texas Veterans Healthcare System, Austin, TX 78712, USA
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26
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Lanzillotta C, Zuliani I, Tramutola A, Barone E, Blarzino C, Folgiero V, Caforio M, Valentini D, Villani A, Locatelli F, Butterfield DA, Head E, Perluigi M, Abisambra JF, Di Domenico F. Chronic PERK induction promotes Alzheimer-like neuropathology in Down syndrome: Insights for therapeutic intervention. Prog Neurobiol 2020; 196:101892. [PMID: 32795489 DOI: 10.1016/j.pneurobio.2020.101892] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/30/2020] [Accepted: 08/02/2020] [Indexed: 12/11/2022]
Abstract
A major challenge in neurobiology is the identification of the mechanisms by which protein misfolding leads to cellular toxicity. Many neurodegenerative disorders, in which aberrant protein conformers aggregate into pathological inclusions, present the chronic activation of the PERK branch of the unfolded protein response. The adaptive effects of the PERK pathway include reduction of translation by transient inhibition of eIF2α and antioxidant protein production via induction of Nrf2 transcription factor. In contrast, PERK prolonged activation leads to sustained reduction in protein synthesis and induction of cell death pathways. To further investigate the role of the PERK pathway in neurodegenerative disorders, we focused on Down syndrome (DS), in which aging confers a high risk of Alzheimer disease (AD). By investigating human DS frontal cortices, we found early and sustained PERK activation associated with the induction of eIF2α and ATF4 downstream signals. We also observed that the Nrf2 response is uncoupled from PERK and its antioxidant effects are repressed in a mechanism implicating the transcription repressor Bach1. The pharmacological inhibition of PERK in DS mice reduced eIF2α-related translational repression and promoted Nrf2 nuclear translocation, favoring the rescue of Nrf2/Bach1 imbalance. The further analysis of peripheral cells from living DS individuals provided strong support of the pathological link between PERK and trisomy 21. Our results suggest that failure to regulate the PERK pathway is a peculiar characteristic of DS pathology and it may represent an essential step to promote cellular dysfunction, which actively contributes in the brain to the early development of AD.
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Affiliation(s)
- Chiara Lanzillotta
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Ilaria Zuliani
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Antonella Tramutola
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Eugenio Barone
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Carla Blarzino
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Valentina Folgiero
- Department of Pediatric Hematology/Oncology and of Cell and Gene Therapy, Bambino Gesù Children's Hospital, Rome, Italy
| | - Matteo Caforio
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy; Department of Pediatric Hematology/Oncology and of Cell and Gene Therapy, Bambino Gesù Children's Hospital, Rome, Italy
| | - Diletta Valentini
- Pediatric and Infectious Disease Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Alberto Villani
- Pediatric and Infectious Disease Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology/Oncology and of Cell and Gene Therapy, Bambino Gesù Children's Hospital, Rome, Italy; Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | - D Allan Butterfield
- Department of Chemistry, University of Kentucky, Lexington, KY, USA; Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
| | - Elizabeth Head
- Department of Pathology & Laboratory Medicine, University of California, Irvine, CA, USA
| | - Marzia Perluigi
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Jose F Abisambra
- Department of Neuroscience and Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA
| | - Fabio Di Domenico
- Department of Biochemical Sciences "A. Rossi Fanelli", Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy.
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27
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Shah V, Mittal R, Shahal D, Sinha P, Bulut E, Mittal J, Eshraghi AA. Evaluating the Efficacy of Taurodeoxycholic Acid in Providing Otoprotection Using an in vitro Model of Electrode Insertion Trauma. Front Mol Neurosci 2020; 13:113. [PMID: 32760249 PMCID: PMC7372968 DOI: 10.3389/fnmol.2020.00113] [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: 03/11/2020] [Accepted: 06/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cochlear implants (CIs) are widely used to provide auditory rehabilitation to individuals having severe to profound sensorineural hearing loss (SNHL). However, insertion of electrode leads to inner trauma and activation of inflammatory and apoptotic signaling cascades resulting in loss of residual hearing in implanted individuals. Pharmaceutical interventions that can target these signaling cascades hold great potential for preserving residual hearing by preventing sensory cell damage. Bile salts have shown efficacy in various regions of the body as powerful antioxidants and anti-inflammatory agents. However, their efficacy against inner ear trauma has never been explored. The objective of this study was to determine whether taurodeoxycholic acid (TDCA), a bile salt derivative, can prevent sensory cell damage employing an in vitro model of electrode insertion trauma (EIT). The organ of Corti (OC) explants were dissected from postnatal day 3 (P-3) rats and placed in serum-free media. Explants were divided into control and experimental groups: (1) untreated controls; (2) EIT; (3) EIT+ TDCA (different concentrations). Hair cell (HC) density, analyses of apoptosis pathway (cleaved caspase 3), levels of reactive oxygen species (ROS) as well as inducible nitric oxide synthase (iNOS) activity and Mitochondrial Membrane Potential (MMP) were assayed. Treatment with TDCA provided significant otoprotection against HC loss in a dose-dependent manner. The molecular mechanisms underlying otoprotection involved decreasing oxidative stress, lowering levels of iNOS, and abrogating generation of cleaved caspase 3. The results of the present study suggest that TDCA provides efficient otoprotection against EIT, in vitro and should be explored for developing pharmaceutical interventions to preserve residual hearing post-cochlear implantation.
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Affiliation(s)
- Viraj Shah
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Rahul Mittal
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - David Shahal
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Priyanka Sinha
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Erdogan Bulut
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Jeenu Mittal
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Adrien A Eshraghi
- Cochlear Implant and Hearing Research Laboratory, Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States.,Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, United States.,Department of Biomedical Engineering, University of Miami, Coral Gables, FL, United States
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Ma C, Wang X, Xu T, Zhang S, Liu S, Zhai C, Wang Z, Mu J, Li C, Cheng F, Wang Q. An Integrative Pharmacology-Based Analysis of Refined Qingkailing Injection Against Cerebral Ischemic Stroke: A Novel Combination of Baicalin, Geniposide, Cholic Acid, and Hyodeoxycholic Acid. Front Pharmacol 2020; 11:519. [PMID: 32457601 PMCID: PMC7227481 DOI: 10.3389/fphar.2020.00519] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022] Open
Abstract
Stroke is the second leading cause of death after heart disease globally and cerebral ischemic stroke accounts for approximately 70% of all incident stroke cases. We selected four main compounds from a patent Chinese medicine, Qingkailing (QKL) injection, including baicalin from Scutellaria baicalensis Georgi (Huang Qin), geniposide from Gardenia jasminoides J. Ellis (Zhizi), and cholic acid and hyodeoxycholic acid from Bovis Calculus (Niuhuang) with a ratio of 4.4:0.4:3:2.6 m/m, to develop a more efficacious and safer modern Chinese medicine injection against ischemic stroke, refined QKL (RQKL). In this study, we investigated multiple targets, levels, and pathways of RQKL by using an integrative pharm\acology combining experimental validation approach. In silica study showed that RQKL may regulate PI3K-Akt, estrogen, neurotrophin, HIF-1, MAPK, Hippo, FoxO, TGF-beta, NOD-like receptor, apoptosis, NF-kappa B, Wnt, chemokine, TNF, Toll-like receptor signaling pathways against ischemic stroke. The experimental results showed that RQKL improved neurological function and prevented infract volume and blood-brain-barrier damage. RQKL inhibited microgliosis and astrogliosis, and protected neurons from ischemic/reperfusion injury. RQKL also inhibited cell apoptosis and affecting the ratio of the anti-apoptosis protein B-cell lymphoma-2 (Bcl2) and pro-apoptosis protein Bcl2-associated X protein (Bax). Western blot analysis showed that RQKL activated AKT/PI3K signaling pathway and antibody array showed RQKL inhibited inflammatory response and decreased proinflammatory factor Tnf, Il6, and Il1b, and chemokines Ccl2, Cxcl2, and Cxcl3, and increased anti-inflammatory cytokine Il10. In conclusion, RQKL protected tissue against ischemic stroke through multiple-target, multiple signals, and modulating multiple cell-types in brain. This study not only promoted our understanding of the role of RQKL against ischemic stroke, but also provided a pattern for the study of Chinese medicine combining pharmaceutical Informatics and system biology methods.
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Affiliation(s)
- Chongyang Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xueqian Wang
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Tian Xu
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Shuang Zhang
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Shuling Liu
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Changming Zhai
- Department of Liver Disease, Guangdong Province Hospital of Traditional Chinese Medicine Zhuhai Branch, Zhuhai, China
| | - Zisong Wang
- Department of Traditional Chinese Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jie Mu
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Changxiang Li
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Fafeng Cheng
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
| | - Qingguo Wang
- School of Traditional Chinese Medicine Department, Beijing University of Chinese Medicine, Beijing, China
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Kaur H, Nagamoto-Combs K, Golovko S, Golovko MY, Klug MG, Combs CK. Probiotics ameliorate intestinal pathophysiology in a mouse model of Alzheimer's disease. Neurobiol Aging 2020; 92:114-134. [PMID: 32417748 DOI: 10.1016/j.neurobiolaging.2020.04.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 02/06/2023]
Abstract
Evidence suggests that changes in intestinal microbiota may affect the central nervous system. However, it is unclear whether alteration of intestinal microbiota affects progression of Alzheimer's disease (AD). To understand this, wild-type control (C57BL/6) mice were compared with the AppNL-G-F model of disease. We used probiotic supplementation to manipulate the gut microbiota. Fecal samples were collected for microbiota profiling. To study brain and intestinal inflammation, biochemical and histological analyses were performed. Altered metabolic pathways were examined by quantifying eicosanoid and bile acid profiles in the brain and serum using ultraperformance liquid chromatography-tandem mass spectrometry. We observed that brain pathology was associated with intestinal dysbiosis and increased intestinal inflammation and leakiness in AppNL-G-F mice. Probiotic supplementation significantly decreased intestinal inflammation and gut permeability with minimal effect on amyloid-β, cytokine, or gliosis levels in the brain. Concentrations of several bile acids and prostaglandins were altered in the serum and brain because of AD or probiotic supplementation. Our study characterizes intestinal dysfunction in an AD mouse model and the potential of probiotic intervention to ameliorate this condition.
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Affiliation(s)
- Harpreet Kaur
- Department of Biomedical Sciences, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA
| | - Kumi Nagamoto-Combs
- Department of Pathology, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA
| | - Svetlana Golovko
- Department of Biomedical Sciences, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA
| | - Mikhail Y Golovko
- Department of Biomedical Sciences, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA
| | - Marilyn G Klug
- Department of Population Health, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA
| | - Colin Kelly Combs
- Department of Biomedical Sciences, University of North Dakota, School of Medicine & Health Sciences, Grand Forks, ND, USA.
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Dexmedetomidine attenuates endoplasmic reticulum stress-induced apoptosis and improves neuronal function after traumatic brain injury in mice. Brain Res 2020; 1732:146682. [DOI: 10.1016/j.brainres.2020.146682] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 01/23/2023]
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31
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Tauroursodeoxycholic acid prevents ER stress-induced apoptosis and improves cerebral and vascular function in mice subjected to subarachnoid hemorrhage. Brain Res 2020; 1727:146566. [DOI: 10.1016/j.brainres.2019.146566] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/15/2022]
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32
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Kusaczuk M. Tauroursodeoxycholate-Bile Acid with Chaperoning Activity: Molecular and Cellular Effects and Therapeutic Perspectives. Cells 2019; 8:E1471. [PMID: 31757001 PMCID: PMC6952947 DOI: 10.3390/cells8121471] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 12/11/2022] Open
Abstract
Tauroursodeoxycholic acid (TUDCA) is a naturally occurring hydrophilic bile acid that has been used for centuries in Chinese medicine. Chemically, TUDCA is a taurine conjugate of ursodeoxycholic acid (UDCA), which in contemporary pharmacology is approved by Food and Drug Administration (FDA) for treatment of primary biliary cholangitis. Interestingly, numerous recent studies demonstrate that mechanisms of TUDCA functioning extend beyond hepatobiliary disorders. Thus, TUDCA has been demonstrated to display potential therapeutic benefits in various models of many diseases such as diabetes, obesity, and neurodegenerative diseases, mostly due to its cytoprotective effect. The mechanisms underlying this cytoprotective activity have been mainly attributed to alleviation of endoplasmic reticulum (ER) stress and stabilization of the unfolded protein response (UPR), which contributed to naming TUDCA as a chemical chaperone. Apart from that, TUDCA has also been found to reduce oxidative stress, suppress apoptosis, and decrease inflammation in many in-vitro and in-vivo models of various diseases. The latest research suggests that TUDCA can also play a role as an epigenetic modulator and act as therapeutic agent in certain types of cancer. Nevertheless, despite the massive amount of evidence demonstrating positive effects of TUDCA in pre-clinical studies, there are certain limitations restraining its wide use in patients. Here, molecular and cellular modes of action of TUDCA are described and therapeutic opportunities and limitations of this bile acid are discussed.
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Affiliation(s)
- Magdalena Kusaczuk
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222 Białystok, Poland
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33
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Liu S, Jin R, Xiao AY, Chen R, Li J, Zhong W, Feng X, Li G. Induction of Neuronal PI3Kγ Contributes to Endoplasmic Reticulum Stress and Long-Term Functional Impairment in a Murine Model of Traumatic Brain Injury. Neurotherapeutics 2019; 16:1320-1334. [PMID: 31187475 PMCID: PMC6985432 DOI: 10.1007/s13311-019-00748-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Phosphoinositide 3-kinase γ (PI3Kγ) expressed in immune cells is linked to neuroinflammation in several neurological diseases. However, the expression and role of PI3Kγ in preclinical traumatic brain injury (TBI) have not been investigated. In WT mice, we found that TBI induced rapid and extensive expression of PI3Kγ in neurons within the perilesional cortex and the ipsilateral hippocampal subfields (CA1, CA3), which peaked between 1 and 3 days and declined significantly 7 days after TBI. Intriguingly, the induction of neuronal PI3Kγ in these subregions of the brain spatiotemporally coincided with both the TBI-induced activation of the neuronal ER stress pathway (p-eIF2α, ATF4, and CHOP) and neuronal cell death (marked by TUNEL-positive neurons) 3 days after TBI. Further, we show that the absence of PI3Kγ in knockout mice profoundly reduced the TBI-induced activation of the ER stress pathway and neuronal cell death. White matter disruption is a better predictor of long-term clinical outcomes than focal lesion size. We show that PI3Kγ deficiency not only reduced brain tissue loss but also alleviated white matter injury (determined by axonal injury and demyelination) up to 28 days after TBI. Importantly, PI3Kγ-knockout mice exhibited greater functional recovery including forepaw use, sensorimotor balance and coordination, and spatial learning and memory up to 28 days after TBI. These results unveil a previously unappreciated role for neuronal PI3Kγ in the regulation of ER stress associated with neuronal cell death, white matter damage, and long-term functional impairment after TBI.
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Affiliation(s)
- Shan Liu
- Department of Neurosurgery and Neuroscience Institute, Penn State University Hershey Medical Center, Hershey, PA, 17033, USA
| | - Rong Jin
- Department of Neurosurgery and Neuroscience Institute, Penn State University Hershey Medical Center, Hershey, PA, 17033, USA
| | - Adam Y Xiao
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA, 71103, USA
| | - Rui Chen
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, LA, 71103, USA
| | - Jarvis Li
- Hershey High School, Hershey, PA, 17033, USA
| | - Wei Zhong
- Department of Neurosurgery and Neuroscience Institute, Penn State University Hershey Medical Center, Hershey, PA, 17033, USA
| | - Xiaozhou Feng
- Department of Pharmacology, Penn State University Hershey Medical Center, Hershey, PA, 17033, USA
| | - Guohong Li
- Department of Neurosurgery and Neuroscience Institute, Penn State University Hershey Medical Center, Hershey, PA, 17033, USA.
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, LA, 71103, USA.
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Rosas-Hernandez H, Burks SM, Cuevas E, Ali SF. Stretch-Induced Deformation as a Model to Study Dopaminergic Dysfunction in Traumatic Brain Injury. Neurochem Res 2019; 44:2546-2555. [DOI: 10.1007/s11064-019-02872-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/04/2019] [Accepted: 09/09/2019] [Indexed: 01/08/2023]
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35
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TUDCA attenuates intestinal injury and inhibits endoplasmic reticulum stress-mediated intestinal cell apoptosis in necrotizing enterocolitis. Int Immunopharmacol 2019; 74:105665. [DOI: 10.1016/j.intimp.2019.05.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/20/2019] [Accepted: 05/26/2019] [Indexed: 01/06/2023]
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36
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Yang M, Wang X, Fan Y, Chen Y, Sun D, Xu X, Wang J, Gu G, Peng R, Shen T, Liu X, Li F, Wang Y, Wang D, Rong H, Han Z, Gao X, Li Q, Fan K, Yuan Y, Zhang J. Semaphorin 3A Contributes to Secondary Blood-Brain Barrier Damage After Traumatic Brain Injury. Front Cell Neurosci 2019; 13:117. [PMID: 30971898 PMCID: PMC6444306 DOI: 10.3389/fncel.2019.00117] [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: 12/20/2018] [Accepted: 03/11/2019] [Indexed: 12/20/2022] Open
Abstract
Semaphorin 3A (SEMA3A) is a member of the Semaphorins family, a class of membrane-associated protein that participates in the construction of nerve networks. SEMA3A has been reported to affect vascular permeability previously, but its influence in traumatic brain injury (TBI) is still unknown. To investigate the effects of SEMA3A, we used a mouse TBI model with a controlled cortical impact (CCI) device and a blood–brain barrier (BBB) injury model in vitro with oxygen-glucose deprivation (OGD). We tested post-TBI changes in SEMA3A, and its related receptors (Nrp-1 and plexin-A1) expression and distribution through western blotting and double-immunofluorescence staining, respectively. Neurological outcomes were evaluated by modified neurological severity scores (mNSSs) and beam-walking test. We examined BBB damage through Evans Blue dye extravasation, brain water content, and western blotting for VE-cadherin and p-VE-cadherin in vivo, and we examined the endothelial cell barrier through hopping probe ion conductance microscopy (HPICM), transwell leakage, and western blotting for VE-cadherin and p-VE-cadherin in vitro. Changes in miR-30b-5p were assessed by RT-PCR. Finally, the neuroprotective function of miR-30b-5p is measured by brain water content, mNSSs and beam-walking test. SEMA3A expression varied following TBI and peaked on the third day which expressed approximate fourfold increase compared with sham group, with the protein concentrated at the lesion boundary. SEMA3A contributed to neurological function deficits and secondary BBB damage in vivo. Our results demonstrated that SEMA3A level following OGD injury almost doubled than control group, and the negative effects of OGD injury can be improved by blocking SEMA3A expression. Furthermore, the expression of miR-30b-5p decreased approximate 40% at the third day and 60% at the seventh day post-CCI. OGD injury also exhibited an effect to approximately decrease 50% of miR-30b-5p expression. Additionally, the expression of SEMA3A post-TBI is regulated by miR-30b-5p, and miR-30b-5p could improve neurological outcomes post-TBI efficiently. Our results demonstrate that SEMA3A is a significant factor in secondary BBB damage after TBI and can be abolished by miR-30b-5p, which represents a potential therapeutic target.
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Affiliation(s)
- Mengchen Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Xiaoxue Wang
- Tianjin Medical University, Tianjin, China.,Department of Clinical Laboratory Diagnostics, Tianjin Medical University General Hospital, Tianjin, China
| | - Yueshan Fan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Yaqing Chen
- Tianjin Medical University, Tianjin, China.,Department of Clinical Laboratory Diagnostics, Tianjin Medical University General Hospital, Tianjin, China
| | - Dongdong Sun
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Xin Xu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Jianhao Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Gang Gu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Ruilong Peng
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Tianyu Shen
- Tianjin Medical University, Tianjin, China.,The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xilei Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Fanjian Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Yi Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Dong Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Hongtao Rong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Zhenying Han
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Xiangliang Gao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Qifeng Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | | | - Yuhua Yuan
- Tianjin Medical University, Tianjin, China.,Department of Clinical Laboratory Diagnostics, Tianjin Medical University General Hospital, Tianjin, China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China.,Tianjin Medical University, Tianjin, China
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37
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Xu X, Wang M, Li JZ, Wei SD, Wu H, Lai X, Cao D, Ou ZB, Gong J. Tauroursodeoxycholic acid alleviates hepatic ischemia reperfusion injury by suppressing the function of Kupffer cells in mice. Biomed Pharmacother 2018; 106:1271-1281. [DOI: 10.1016/j.biopha.2018.06.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 06/09/2018] [Accepted: 06/12/2018] [Indexed: 12/19/2022] Open
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38
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He H, Liu W, Zhou Y, Liu Y, Weng P, Li Y, Fu H. Sevoflurane post-conditioning attenuates traumatic brain injury-induced neuronal apoptosis by promoting autophagy via the PI3K/AKT signaling pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:629-638. [PMID: 29606856 PMCID: PMC5868589 DOI: 10.2147/dddt.s158313] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Sevoflurane post-conditioning exerts nerve-protective effects through inhibiting caspase-dependent neuronal apoptosis after a traumatic brain injury (TBI). Autophagy that is induced by the endoplasmic reticulum stress plays an important role in the secondary neurological dysfunction after a TBI. However, the relationship between autophagy and caspase-dependent apoptosis as well as the underlying nerve protection mechanism that occurs with sevoflurane post-conditioning following a TBI remains unclear. Methods The Feeney TBI model was used to induce brain injury in rats. Evaluation of the modified neurological severity scores, measurement of brain water content, Nissl staining, and terminal deoxynucleotidyl transferase dUTP nick end labeling assay were used to determine the neuroprotective effects of the sevoflurane post-conditioning. Both immunofluorescence and Western blot analyses were used to detect the expression of autophagy-related proteins microtubule-associated protein 1 light chain 3-II and Beclin-1, pro-apoptotic factors, as well as the activation of the phosphatidylinositide 3-kinase/protein kinase B (PI3K/AKT) signaling pathway within the lesioned cortex. Results Autophagy and neuronal apoptosis were activated in the lesioned cortex following the TBI. Sevoflurane post-conditioning enhanced early autophagy, suppressed neuronal apoptosis, and alleviated brain edema, which improved nerve function after a TBI (all P < 0.05). Sevoflurane post-conditioning induced the activation of PI3K/AKT signaling after the TBI (P < 0.05). The neuroprotective effects of sevoflurane post-conditioning were reversed through the autophagy inhibitor 3-methyladenine treatment. Conclusion Neuronal apoptosis and the activation of autophagy were involved in the secondary neurological injury following a TBI. Sevoflurane post-conditioning weakened the TBI-induced neuronal apoptosis by regulating autophagy via PI3K/AKT signaling.
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Affiliation(s)
- Hefan He
- Department of Anesthesia, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Weifeng Liu
- Department of Anesthesia, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Yingying Zhou
- Department of Anesthesia, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Yibin Liu
- Department of Anesthesia, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Peiqing Weng
- Department of Anesthesia, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Yasong Li
- Department of Neurosurgery, the Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
| | - Huangde Fu
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China
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Zhou S, Yin DP, Wang Y, Tian Y, Wang ZG, Zhang JN. Dynamic changes in growth factor levels over a 7-day period predict the functional outcomes of traumatic brain injury. Neural Regen Res 2018; 13:2134-2140. [PMID: 30323142 PMCID: PMC6199919 DOI: 10.4103/1673-5374.241462] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Traumatic brain injury (TBI) can result in poor functional outcomes and death, and overall outcomes are varied. Growth factors, such as angiopoietin-1 (Ang-1), vascular endothelial growth factor (VEGF), and granulocyte-colony stimulating factor (G-CSF), play important roles in the neurological functions. This study investigated the relationship between serum growth factor levels and long-term outcomes after TBI. Blood samples from 55 patients were collected at 1, 3 and 7 days after TBI. Blood samples from 39 healthy controls were collected as a control group. Serum Ang-1, G-CSF, and VEGF levels were measured using ELISA. Patients were monitored for 3 months using the Glasgow Outcome Scale-Extended (GOSE). Patients having a GOSE score of > 5 at 3 months were categorized as a good outcome, and patients with a GOSE score of 1–5 were categorized as a bad outcome. Our data demonstrated that TBI patients showed significantly increased growth factor levels within 7 days compared with healthy controls. Serum levels of Ang-1 at 1 and 7 days and G-CSF levels at 7 days were significantly higher in patients with good outcomes than in patients with poor outcomes. VEGF levels at 7 days were remarkably higher in patients with poor outcomes than in patients with good outcomes. Receiver operating characteristic analysis showed that the best cut-off points of serum growth factor levels at 7 days to predict functional outcome were 1,333 pg/mL for VEGF, 447.2 pg/mL for G-CSF, and 90.6 ng/mL for Ang-1. These data suggest that patients with elevated levels of serum Ang-1, G-CSF, and decreased VEGF levels had a better prognosis in the acute phase of TBI (within 7 days). This study was registered with the Chinese Clinical Trial Registry (registration number: ChiCTR1800018251) on September 7, 2018.
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Affiliation(s)
- Shuai Zhou
- Department of Intensive Care Unit, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Dong-Pei Yin
- Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yi Wang
- Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Ye Tian
- Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Zeng-Guang Wang
- Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jian-Ning Zhang
- Tianjin Neurological Institute; Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
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