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Wang Y, Zhang L, Lyu T, Cui L, Zhao S, Wang X, Wang M, Wang Y, Li Z. Association of DNA methylation/demethylation with the functional outcome of stroke in a hyperinflammatory state. Neural Regen Res 2024; 19:2229-2239. [PMID: 38488557 PMCID: PMC11034580 DOI: 10.4103/1673-5374.392890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/07/2023] [Accepted: 11/13/2023] [Indexed: 04/24/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202410000-00024/figure1/v/2024-02-06T055622Z/r/image-tiff Inflammation is closely related to stroke prognosis, and high inflammation status leads to poor functional outcome in stroke. DNA methylation is involved in the pathogenesis and prognosis of stroke. However, the effect of DNA methylation on stroke at high levels of inflammation is unclear. In this study, we constructed a hyperinflammatory cerebral ischemia mouse model and investigated the effect of hypomethylation and hypermethylation on the functional outcome. We constructed a mouse model of transient middle cerebral artery occlusion and treated the mice with lipopolysaccharide to induce a hyperinflammatory state. To investigate the effect of DNA methylation on stroke, we used small molecule inhibitors to restrain the function of key DNA methylation and demethylation enzymes. 2,3,5-Triphenyltetrazolium chloride staining, neurological function scores, neurobehavioral tests, enzyme-linked immunosorbent assay, quantitative reverse transcription PCR and western blot assay were used to evaluate the effects after stroke in mice. We assessed changes in the global methylation status by measuring DNA 5-mc and DNA 5-hmc levels in peripheral blood after the use of the inhibitor. In the group treated with the DNA methylation inhibitor, brain tissue 2,3,5-triphenyltetrazolium chloride staining showed an increase in infarct volume, which was accompanied by a decrease in neurological scores and worsening of neurobehavioral performance. The levels of inflammatory factors interleukin 6 and interleukin-1 beta in ischemic brain tissue and plasma were elevated, indicating increased inflammation. Related inflammatory pathway exploration showed significant overactivation of nuclear factor kappa B. These results suggested that inhibiting DNA methylation led to poor functional outcome in mice with high inflammation following stroke. Further, the effects were reversed by inhibition of DNA demethylation. Our findings suggest that DNA methylation regulates the inflammatory response in stroke and has an important role in the functional outcome of hyperinflammatory stroke.
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Affiliation(s)
- Yubo Wang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ling Zhang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tianjie Lyu
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Lu Cui
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shunying Zhao
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xuechun Wang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Meng Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yongjun Wang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
- Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases, Beijing, China
| | - Zixiao Li
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
- Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases, Beijing, China
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2
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Tsujita M, Melchior JT, Yokoyama S. Lipoprotein Particles in Cerebrospinal Fluid. Arterioscler Thromb Vasc Biol 2024; 44:1042-1052. [PMID: 38545782 DOI: 10.1161/atvbaha.123.318284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The brain is the most lipid-rich organ in the body, and the intricate interplay between lipid metabolism and pathologies associated with neurodegenerative disorders is being increasingly recognized. The brain is bathed in cerebrospinal fluid (CSF), which, like plasma, contains lipid-protein complexes called lipoproteins that are responsible for extracellular lipid transport. Multiple CSF lipoprotein populations exist, some of which are produced de novo in the central nervous system and others that appear to be generated from protein constituents that are produced in the periphery. These CSF lipoproteins are thought to play key roles in maintaining lipid homeostasis in the central nervous system, while little else is known due to their limited accessibility and their low abundance in CSF. Recent work has provided new insights into the compositional complexity of CSF lipoprotein families and their metabolism in cerebral circulation. The purpose of this review is to summarize our current state of knowledge on the composition, origin, and metabolism of CSF lipoproteins.
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Affiliation(s)
- Maki Tsujita
- Department of Biochemistry, Nagoya City University Graduate School of Medical Sciences, Japan (M.T.)
| | - John T Melchior
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington (J.T.M.)
- Department of Pathology and Laboratory Medicine, Center for Lipid and Arteriosclerosis Science, University of Cincinnati, OH (J.T.M.)
- Department of Neurology, Oregon Health and Science University, Portland (J.T.M.)
| | - Shinji Yokoyama
- Department of Food and Nutritional Sciences, Chubu University, Kasugai, Japan (S.Y.)
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3
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Wang ZY, Chen RX, Wang JF, Liu SC, Xu X, Zhou T, Chen YAL, Zhang YD, Li XC, Li CX. Apolipoprotein A-1 Accelerated Liver Regeneration Through Regulating Autophagy Via AMPK-ULK1 Pathway. Cell Mol Gastroenterol Hepatol 2023; 17:539-551. [PMID: 38122985 PMCID: PMC10883977 DOI: 10.1016/j.jcmgh.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND & AIMS Apolipoprotein A-1 (ApoA-1), the main apolipoprotein of high-density lipoprotein, has been well studied in the area of lipid metabolism and cardiovascular diseases. In this project, we clarify the function and mechanism of ApoA-1 in liver regeneration. METHODS Seventy percent of partial hepatectomy was applied in male ApoA-1 knockout mice and wild-type mice to investigate the effects of ApoA-1 on liver regeneration. D-4F (ApoA-1 mimetic peptide), autophagy activator, and AMPK activator were used to explore the mechanism of ApoA-1 on liver regeneration. RESULTS We demonstrated that ApoA-1 levels were highly expressed during the early stage of liver regeneration. ApoA-1 deficiency greatly impaired liver regeneration after hepatectomy. Meanwhile, we found that ApoA-1 deficiency inhibited autophagy during liver regeneration. The activation of autophagy protected against ApoA-1 deficiency in inhibiting liver regeneration. Furthermore, ApoA-1 deficiency impaired autophagy through AMPK-ULK1 pathway, and AMPK activation significantly improved liver regeneration. The administration of D-4F could accelerated liver regeneration after hepatectomy. CONCLUSIONS These findings suggested that ApoA-1 played an essential role in liver regeneration through promoting autophagy in hepatocytes via AMPK-ULK1 pathway. Our findings enrich the understanding of the underlying mechanism of liver regeneration and provide a potential therapeutic strategy for liver injury.
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Affiliation(s)
- Zi Yi Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Rui Xiang Chen
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Ji Fei Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Shuo Chen Liu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Xiao Xu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Tao Zhou
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yan An Lan Chen
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yao Dong Zhang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China
| | - Xiang Cheng Li
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China.
| | - Chang Xian Li
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, China.
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4
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Hu X, Geng P, Zhao X, Wang Q, Liu C, Guo C, Dong W, Jin X. The NG2-glia is a potential target to maintain the integrity of neurovascular unit after acute ischemic stroke. Neurobiol Dis 2023; 180:106076. [PMID: 36921779 DOI: 10.1016/j.nbd.2023.106076] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/07/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
The neurovascular unit (NVU) plays a critical role in health and disease. In the current review, we discuss the critical role of a class of neural/glial antigen 2 (NG2)-expressing glial cells (NG2-glia) in regulating NVU after acute ischemic stroke (AIS). We first introduce the role of NG2-glia in the formation of NVU during development as well as aging-induced damage to NVU and accompanying NG2-glia change. We then discuss the reciprocal interactions between NG2-glia and the other component cells of NVU, emphasizing the factors that could influence NG2-glia. Damage to the NVU integrity is the pathological basis of edema and hemorrhagic transformation, the most dreaded complication after AIS. The role of NG2-glia in AIS-induced NVU damage and the effect of NG2-glia transplantation on AIS-induced NVU damage are summarized. We next discuss the role of NG2-glia and the effect of NG2-glia transplantation in oligodendrogenesis and white matter repair as well as angiogenesis which is associated with the outcome of the patients after AIS. Finally, we review the current strategies to promote NG2-glia proliferation and differentiation and propose to use the dental pulp stem cells (DPSC)-derived exosome as a promising strategy to reduce AIS-induced injury and promote repair through maintaining the integrity of NVU by regulating endogenous NG2-glia proliferation and differentiation.
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Affiliation(s)
- Xiaoyan Hu
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Panpan Geng
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Xiaoyun Zhao
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Qian Wang
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Changqing Liu
- Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Chun Guo
- School of Biosciences, University of Sheffield, Firth Court, Western Bank, Sheffield, UK
| | - Wen Dong
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Xinchun Jin
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China; Institute of Neuroscience, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.
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5
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Tian D, Pan Y, Zhao Y, Wang H, Tian Y, Yang L, Shi W, Zhang C, Zhu Y, Zhang Y, Wang S, Zhang D. TCRαβ +NK1.1 -CD4 -CD8 - double-negative T cells inhibit central and peripheral inflammation and ameliorate ischemic stroke in mice. Theranostics 2023; 13:896-909. [PMID: 36793857 PMCID: PMC9925325 DOI: 10.7150/thno.80307] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/24/2022] [Indexed: 01/11/2023] Open
Abstract
Background: Excessive immune activation leads to secondary injury and impedes injured brain recovery after ischemic stroke. However, few effective methods are currently used for equilibrating immune balance. CD3+NK1.1-TCRβ+CD4-CD8- double-negative T (DNT) cells which do not express NK cell surface markers are unique regulatory cells that maintain homeostasis in several immune-related diseases. However, the therapeutic potential and regulatory mechanism of DNT cells in ischemic stroke are still unknown. Methods: Mouse ischemic stroke is induced by occlusion of the distal branches of the middle cerebral artery (dMCAO). DNT cells were adoptively transferred intravenously into ischemic stroke mice. Neural recovery was evaluated by TTC staining and behavioral analysis. Using immunofluorescence, flow cytometry, and RNA sequencing, the immune regulatory function of DNT cells was investigated at different time points post ischemic stroke. Results: Adoptive transfer of DNT cells significantly reduces infarct volume and improves sensorimotor function after ischemic stroke. DNT cells suppress peripheral Trem1+ myeloid cell differentiation during the acute phase. Furthermore, they infiltrate the ischemic tissue via CCR5 and equilibrate the local immune balance during the subacute phase. During the chronic phase, DNT cells enhance Treg cell recruitment through CCL5, eventually developing an immune homeostatic milieu for neuronal recovery. Conclusions: DNT cell treatment renders the comprehensive anti-inflammatory roles in specific phases of ischemic stroke. Our study suggests that the adoptive transfer of regulatory DNT cells may be a potential cell-based therapy for ischemic stroke.
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Affiliation(s)
- Dan Tian
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China
| | - Yuhualei Pan
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Yushang Zhao
- Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Huan Wang
- Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Yue Tian
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Lu Yang
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China
| | - Wen Shi
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Chengjie Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yanbing Zhu
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China
| | - Yongbo Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Songlin Wang
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China
| | - Dong Zhang
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China.,Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China.,Beijing Clinical Research Institute, Beijing, China.,Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
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6
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Soltani S, Mansouri K, Parvaneh S, Thakor AS, Pociot F, Yarani R. Diabetes complications and extracellular vesicle therapy. Rev Endocr Metab Disord 2022; 23:357-385. [PMID: 34647239 DOI: 10.1007/s11154-021-09680-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/30/2021] [Indexed: 02/06/2023]
Abstract
Diabetes is a chronic disorder characterized by dysregulated glycemic conditions. Diabetic complications include microvascular and macrovascular abnormalities and account for high morbidity and mortality rates in patients. Current clinical approaches for diabetic complications are limited to symptomatic treatments and tight control of blood sugar levels. Extracellular vesicles (EVs) released by somatic and stem cells have recently emerged as a new class of potent cell-free therapeutic delivery packets with a great potential to treat diabetic complications. EVs contain a mixture of bioactive molecules and can affect underlying pathological processes in favor of tissue healing. In addition, EVs have low immunogenicity and high storage capacity while maintaining nearly the same regenerative and immunomodulatory effects compared to current cell-based therapies. Therefore, EVs have received increasing attention for diabetes-related complications in recent years. In this review, we provide an outlook on diabetic complications and summarizes new knowledge and advances in EV applications. Moreover, we highlight recommendations for future EV-related research.
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Affiliation(s)
- Setareh Soltani
- Clinical Research Development Center, Taleghani and Imam Ali Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Health Technology Institute, Kermanshah, University of Medical Sciences, Kermanshah, Iran
| | - Shahram Parvaneh
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
- Research Institute of Translational Biomedicine, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Flemming Pociot
- Translational Type 1 Diabetes Research, Department of Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Reza Yarani
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA.
- Translational Type 1 Diabetes Research, Department of Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.
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7
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Zhou M, Li R, Venkat P, Qian Y, Chopp M, Zacharek A, Landschoot-Ward J, Powell B, Jiang Q, Cui X. Post-Stroke Administration of L-4F Promotes Neurovascular and White Matter Remodeling in Type-2 Diabetic Stroke Mice. Front Neurol 2022; 13:863934. [PMID: 35572941 PMCID: PMC9100936 DOI: 10.3389/fneur.2022.863934] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/21/2022] [Indexed: 02/02/2023] Open
Abstract
Patients with type 2 diabetes mellitus (T2DM) exhibit a distinct and high risk of ischemic stroke with worse post-stroke neurovascular and white matter (WM) prognosis than the non-diabetic population. In the central nervous system, the ATP-binding cassette transporter member A 1 (ABCA1), a reverse cholesterol transporter that efflux cellular cholesterol, plays an important role in high-density lipoprotein (HDL) biogenesis and in maintaining neurovascular stability and WM integrity. Our previous study shows that L-4F, an economical apolipoprotein A member I (ApoA-I) mimetic peptide, has neuroprotective effects via alleviating neurovascular and WM impairments in the brain of db/db-T2DM stroke mice. To further investigate whether L-4F has neurorestorative benefits in the ischemic brain after stroke in T2DM and elucidate the underlying molecular mechanisms, we subjected middle-aged, brain-ABCA1 deficient (ABCA1-B/-B), and ABCA1-floxed (ABCA1fl/fl) T2DM control mice to distal middle cerebral artery occlusion. L-4F (16 mg/kg, subcutaneous) treatment was initiated 24 h after stroke and administered once daily for 21 days. Treatment of T2DM-stroke with L-4F improved neurological functional outcome, and decreased hemorrhage, mortality, and BBB leakage identified by decreased albumin infiltration and increased tight-junction and astrocyte end-feet densities, increased cerebral arteriole diameter and smooth muscle cell number, and increased WM density and oligodendrogenesis in the ischemic brain in both ABCA1-B/-B and ABCA1fl/fl T2DM-stroke mice compared with vehicle-control mice, respectively (p < 0.05, n = 9 or 21/group). The L-4F treatment reduced macrophage infiltration and neuroinflammation identified by decreases in ED-1, monocyte chemoattractant protein-1 (MCP-1), and toll-like receptor 4 (TLR4) expression, and increases in anti-inflammatory factor Insulin-like growth factor 1 (IGF-1) and its receptor IGF-1 receptor β (IGF-1Rβ) in the ischemic brain (p < 0.05, n = 6/group). These results suggest that post-stroke administration of L-4F may provide a restorative strategy for T2DM-stroke by promoting neurovascular and WM remodeling. Reducing neuroinflammation in the injured brain may contribute at least partially to the restorative effects of L-4F independent of the ABCA1 signaling pathway.
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Affiliation(s)
- Min Zhou
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Rongwen Li
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Poornima Venkat
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Yu Qian
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
- Department of Physics, Oakland University, Rochester, MI, United States
| | - Alex Zacharek
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | | | - Brianna Powell
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Quan Jiang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
- Department of Physics, Oakland University, Rochester, MI, United States
| | - Xu Cui
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
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8
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Yang Y, He Y, Wei X, Wan H, Ding Z, Yang J, Zhou H. Network Pharmacology and Molecular Docking-Based Mechanism Study to Reveal the Protective Effect of Salvianolic Acid C in a Rat Model of Ischemic Stroke. Front Pharmacol 2022; 12:799448. [PMID: 35153756 PMCID: PMC8828947 DOI: 10.3389/fphar.2021.799448] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/14/2021] [Indexed: 12/18/2022] Open
Abstract
Salvianolic acid C (SAC) is a major bioactive component of Salvia miltiorrhiza Bunge (Danshen), a Chinese herb for treating ischemic stroke (IS). However, the mechanism by which SAC affects the IS has not yet been evaluated, thus a network pharmacology integrated molecular docking strategy was performed to systematically evaluate its pharmacological mechanisms, which were further validated in rats with cerebral ischemia. A total of 361 potential SAC-related targets were predicted by SwissTargetPrediction and PharmMapper, and a total of 443 IS-related targets were obtained from DisGeNET, DrugBank, OMIM, and Therapeutic Target database (TTD) databases. SAC-related targets were hit by the 60 targets associated with IS. By Gene ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment combined with the protein-protein interaction (PPI) network and cytoHubba plug-ins, nine related signaling pathways (proteoglycans in cancer, pathways in cancer, PI3K-Akt signaling pathway, Focal adhesion, etc.), and 20 hub genes were identified. Consequently, molecular docking indicated that SAC may interact with the nine targets (F2, MMP7, KDR, IGF1, REN, PPARG, PLG, ACE and MMP1). Four of the target proteins (VEGFR2, MMP1, PPARγ and IGF1) were verified using western blot. This study comprehensively analyzed pathways and targets related to the treatment of IS by SAC. The results of western blot also confirmed that the SAC against IS is mainly related to anti-inflammatory and angiogenesis, which provides a reference for us to find and explore the effective anti-IS drugs.
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Affiliation(s)
- Yuting Yang
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu He
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaoyu Wei
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Haitong Wan
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhishan Ding
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiehong Yang
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Huifen Zhou
- Zhejiang Chinese Medical University, Hangzhou, China
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9
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Wittfeld K, Raman MR, Conner SC, Aslam A, Teumer A, Nauck M, Hosten N, Habes M, DeCarli C, Vasan RS, Beiser AS, Himali JJ, Seshadri S, Grabe HJ, Satizabal CL. Insulin-Like Growth Factor, Inflammation, and MRI Markers of Alzheimer's Disease in Predominantly Middle-Aged Adults. J Alzheimers Dis 2022; 88:311-322. [PMID: 35599493 PMCID: PMC9472289 DOI: 10.3233/jad-220356] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Insulin-like growth factor 1 (IGF-1) signaling has been implicated in Alzheimer's disease pathogenesis, and further evidence suggests inflammation can be a moderator of this association. However, most research to date has been conducted on older adults. OBJECTIVE To investigate the association of serum IGF-1 and IGF binding protein 3 (IGFBP-3) concentrations with MRI markers of Alzheimer's disease in predominantly middle-aged adults, and further assess moderation by chronic inflammation. METHODS We included participants from the Framingham Heart Study (n = 1,852, mean age 46±8, 46% men) and the Study of Health in Pomerania (n = 674, mean age 50±13, 42% men) with available serum IGF-1, IFGBP-3, as well as brain MRI. IGF-1 and IFGBP-3 were related to MRI outcomes (i.e., total brain, cortical gray matter, white matter, white matter hyperintensities (WMH), and hippocampal volumes) using multivariable regression models adjusting for potential confounders. Subgroup analyses by C-reactive protein (CRP) concentrations were also performed. Cohort-specific summary statistics were meta-analyzed using random-effects models and corrected for multiple comparisons. RESULTS Meta-analysis results revealed that higher IGF-1 concentrations were associated with lower WMH (estimate [β] [95% CI], -0.05 [-0.09, -0.02], p = 0.006) and larger hippocampal volumes (0.07 [0.02, 0.12], p = 0.01), independent of vascular risk factors. These associations occurred predominantly in individuals with CRP concentrations < 75th percentile. We did not observe associations between IGFBP-3 and MRI outcomes. CONCLUSION Our findings suggest that IGF-1-related signaling may be implicated in brain health as early as midlife.
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Affiliation(s)
- Katharina Wittfeld
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Germany
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Mekala R Raman
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
| | - Sarah C Conner
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Asra Aslam
- Long School of Medicine, UT Health San Antonio, San Antonio, TX, USA
| | - Alexander Teumer
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Department of Population Medicine and Lifestyle Diseases Prevention, Medical University of Bialystok, Bialystok, Poland
| | - Matthias Nauck
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Norbert Hosten
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Mohamad Habes
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, UT Health San Antonio, San Antonio, TX, USA
- Department of Radiology, Center for Biomedical Image Computing and Analytics, University of Pennsylvania, Philadelphia, PA, USA
- Department of Neurology, Penn Memory Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Charles DeCarli
- Department of Neurology, University of California, Davis School of Medicine, Sacramento, CA, USA
| | - Ramachandran S Vasan
- Framingham Heart Study, Framingham, MA, USA
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
- Department of Epidemiology, Boston University School of Public Health, Boston MA, USA
| | - Alexa S Beiser
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Jayandra J Himali
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, UT Health San Antonio, San Antonio, TX, USA
| | - Sudha Seshadri
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, UT Health San Antonio, San Antonio, TX, USA
| | - Hans J Grabe
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Germany
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Claudia L Satizabal
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, UT Health San Antonio, San Antonio, TX, USA
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10
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Xia Y, Cheng M, Hu Y, Li M, Shen L, Ji X, Cui X, Liu X, Wang W, Gao H. Combined transcriptomic and lipidomic analysis of D-4F ameliorating bleomycin-induced pulmonary fibrosis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1424. [PMID: 34733976 PMCID: PMC8506780 DOI: 10.21037/atm-21-3777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/26/2021] [Indexed: 11/06/2022]
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease that leads to respiratory failure, and for which there is no effective treatment. Apolipoprotein A-1 (ApoA-1) has been reported to ameliorate the bleomycin (BLM)-induced IPF model. Methods To examine the function of D-4F, an ApoA-1 mimetic polypeptide, in IPF, we used an in-vivo BLM-induced model. We assigned mice into the following 3 groups: the Blank Group (BLK Group), the Bleomycin Treatment Group (Model Group), and the D-4F Interference Group (Inter Group). The BLM-induced fibrosis was examined by hematoxylin and eosin, Masson’s trichrome (M-T) staining and immunohistochemical staining. An untargeted lipidomic and transcriptomic analysis were used to examine the function of D-4F. Results There were 35 differentially altered lipids (DALs) in the BLK, Model and Inter Groups. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that glycerophospholipid metabolism was the most highly enriched of the 35 DALs. There were 99 differentially expressed genes (DEGs) in the BLK, Model and Inter Groups. The enriched KEGG pathway analysis showed that the mitogen-activated protein kinase (MAPK) pathway was 1 of the top 10 pathways. The results of the untargeted lipidomic and transcriptomic analysis showed that phospholipase A2 group 4c (Pla2g4c) was a crucial gene in both the MAPK pathway and glycerophospholipid metabolism. Pla2g4c was increased in the Model Group but decreased in the Inter Group. Conclusions It may be that D-4F prevented the BLM-induced pulmonary fibrosis model by inhibiting the expression of pla2g4c. Our findings suggest that D-4F may be a potential treatment of IPF.
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Affiliation(s)
- Yong Xia
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Mei Cheng
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Yanyan Hu
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Man Li
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Lin Shen
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Xiang Ji
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Xiaopei Cui
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Xiangju Liu
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Weiling Wang
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
| | - Haiqing Gao
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China.,Shandong provincial Key Laboratory of Cardiovascular Proteomics, Shandong University, Jinan, China
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11
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Youssef MI, Ma J, Chen Z, Hu WW. Potential therapeutic agents for ischemic white matter damage. Neurochem Int 2021; 149:105116. [PMID: 34229025 DOI: 10.1016/j.neuint.2021.105116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/24/2021] [Indexed: 11/19/2022]
Abstract
Ischemic white matter damage (WMD) is increasingly being considered as one of the major causes of neurological disorders in older adults and preterm infants. The functional consequences of WMD triggers a progressive cognitive decline and dementia particularly in patients with ischemic cerebrovascular diseases. Despite the major stride made in the pathogenesis mechanisms of ischemic WMD in the last century, effective medications are still not available. So, there is an urgent need to explore a promising approach to slow the progression or modify its pathological course. In this review, we discussed the animal models, the pathological mechanisms and the potential therapeutic agents for ischemic WMD. The development in the studies of anti-oxidants, free radical scavengers, anti-inflammatory or anti-apoptotic agents and neurotrophic factors in ischemic WMD were summarized. The agents which either alleviate oligodendrocyte damage or promote its proliferation or differentiation may have potential value for the treatment of ischemic WMD. Moreover, drugs with multifaceted protective activities or a wide therapeutic window may be optimal for clinical translation.
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Affiliation(s)
- Mahmoud I Youssef
- Department of Pharmacology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Jing Ma
- Department of Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, PR China.
| | - Zhong Chen
- Department of Pharmacology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China; Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China.
| | - Wei-Wei Hu
- Department of Pharmacology, NHC and CAMS Key Laboratory of Medical Neurobiology, School of Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
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12
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Zhang L, Wuri J, An L, Liu X, Wu Y, Hu H, Wu R, Su Y, Yuan Q, Yan T. Metoprolol attenuates intracerebral hemorrhage-induced cardiac damage by suppression of sympathetic overactivity in mice. Auton Neurosci 2021; 234:102832. [PMID: 34126326 DOI: 10.1016/j.autneu.2021.102832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/08/2021] [Accepted: 06/03/2021] [Indexed: 11/28/2022]
Abstract
The high rates of mortality and disability resulting from intracerebral hemorrhage (ICH) are closely related to subsequent cardiac complications. The mechanisms underlying ICH-induced cardiac dysfunction are not fully understood. In this study, we investigated the role of sympathetic overactivity in mediating cardiac dysfunction post ICH in mice. Collagenase-injection ICH model was established in adult male C57BL/6J mice. Neurological function was subsequently evaluated at multiple time points after ICH and cardiac function was measured by echocardiography on 3 and 14 days after ICH. Plasma adrenaline, noradrenaline, cortisol and heart β1 adrenergic receptor (β1-AR) levels were assessed to evaluate sympathetic activity. Picro Sirius Red (PSR) staining was performed to evaluate cardiomyocyte hypertrophy and interstitial fibrosis. Monocyte chemotactic protein 1 (MCP-1), tumor necrosis factor-alpha (TNF-α), interleukin-6(IL-6), nuclear factor kappa-B(NF-κB), NADPH oxidase-2 (NOX2), matrix metalloprotein (MMP-9) and transforming growth factor-beta (TGF-β) levels were assessed to evaluate inflammation, fibrosis and oxidative stress levels in heart after ICH. Macrophages and neutrophils were assessed to evaluate inflammatory cell infiltration in heart after ICH. ICH induced sympathetic excitability, as identified by increased circulating adrenaline, noradrenaline, cortisol levels and β1-AR expression in heart tissue. Metoprolol-treated ICH mice had improved cardiac and neurological function. The suppression of sympathetic overactivity by metoprolol attenuates cardiac inflammation, fibrosis and oxidative stress after ICH. In conclusion, ICH-induced secondary sympathetic overactivity which mediated inflammatory response may play an important role in post-ICH cardiac dysfunction.
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Affiliation(s)
- Liqun Zhang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Jimusi Wuri
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Lulu An
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Xiaoxuan Liu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Ye Wu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Haotian Hu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Ruixia Wu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Yue Su
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Quan Yuan
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Tao Yan
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China.
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13
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Guo YS, Yuan M, Han Y, Shen XY, Gao ZK, Bi X. Therapeutic Potential of Cytokines in Demyelinating Lesions After Stroke. J Mol Neurosci 2021; 71:2035-2052. [PMID: 33970426 DOI: 10.1007/s12031-021-01851-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022]
Abstract
White matter damage is a component of most human stroke and usually accounts for at least half of the lesion volume. Subcortical white matter stroke (WMS) accounts for 25% of all strokes and causes severe motor and cognitive dysfunction. The adult brain has a very limited ability to repair white matter damage. Pathological analysis shows that demyelination or myelin loss is the main feature of white matter injury and plays an important role in long-term sensorimotor and cognitive dysfunction. This suggests that demyelination is a major therapeutic target for ischemic stroke injury. An acute inflammatory reaction is triggered by brain ischemia, which is accompanied by cytokine production. The production of cytokines is an important factor affecting demyelination and myelin regeneration. Different cytokines have different effects on myelin damage and myelin regeneration. Exploring the role of cytokines in demyelination and remyelination after stroke and the underlying molecular mechanisms of demyelination and myelin regeneration after ischemic injury is very important for the development of rehabilitation treatment strategies. This review focuses on recent findings on the effects of cytokines on myelin damage and remyelination as well as the progress of research on the role of cytokines in ischemic stroke prognosis to provide a new treatment approach for amelioration of white matter damage after stroke.
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Affiliation(s)
- Yi-Sha Guo
- Shanghai University of Sport, Shanghai, 200438, China
| | - Mei Yuan
- Shanghai University of Sport, Shanghai, 200438, China
| | - Yu Han
- Shanghai University of Sport, Shanghai, 200438, China
| | - Xin-Ya Shen
- Shanghai University of Traditional Chinese Medicine, Shanghai, 200438, China
| | - Zhen-Kun Gao
- Shanghai University of Traditional Chinese Medicine, Shanghai, 200438, China
| | - Xia Bi
- Department of Rehabilitation Medicine, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China.
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14
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Castaño D, Rattanasopa C, Monteiro-Cardoso VF, Corlianò M, Liu Y, Zhong S, Rusu M, Liehn EA, Singaraja RR. Lipid efflux mechanisms, relation to disease and potential therapeutic aspects. Adv Drug Deliv Rev 2020; 159:54-93. [PMID: 32423566 DOI: 10.1016/j.addr.2020.04.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 02/06/2023]
Abstract
Lipids are hydrophobic and amphiphilic molecules involved in diverse functions such as membrane structure, energy metabolism, immunity, and signaling. However, altered intra-cellular lipid levels or composition can lead to metabolic and inflammatory dysfunction, as well as lipotoxicity. Thus, intra-cellular lipid homeostasis is tightly regulated by multiple mechanisms. Since most peripheral cells do not catabolize cholesterol, efflux (extra-cellular transport) of cholesterol is vital for lipid homeostasis. Defective efflux contributes to atherosclerotic plaque development, impaired β-cell insulin secretion, and neuropathology. Of these, defective lipid efflux in macrophages in the arterial walls leading to foam cell and atherosclerotic plaque formation has been the most well studied, likely because a leading global cause of death is cardiovascular disease. Circulating high density lipoprotein particles play critical roles as acceptors of effluxed cellular lipids, suggesting their importance in disease etiology. We review here mechanisms and pathways that modulate lipid efflux, the role of lipid efflux in disease etiology, and therapeutic options aimed at modulating this critical process.
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15
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Hu H, Zhao Q, Liu X, Yan T. Human umbilical cord blood cells rescued traumatic brain injury-induced cardiac and neurological deficits. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:278. [PMID: 32355722 PMCID: PMC7186665 DOI: 10.21037/atm.2020.03.52] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Background Traumatic brain injury (TBI) evokes neurological deficits and induces cardiac dysfunction. Treatment with human umbilical cord blood cells (HUCBCs) represents a potential therapeutic strategy for TBI-induced neurological deficits. The present study aimed to determine whether HUCBCs could ameliorate the cardiac dysfunction and neurological deficits induced by TBI. Methods Adult male C57BL/6J mice were subjected to controlled cortical impact (CCI)-induced TBI and were treated with either HUCBCs (1×106) or phosphate-buffered saline (PBS), via tail vein injections, 3 days after TBI. Neurological and cognitive functions were subsequently evaluated at multiple time points after TBI and cardiac function was assessed by echocardiography 3 and 30 days after TBI. Brain and heart tissues were paraffin-embedded 30 days after TBI. Hematoxylin and eosin (H&E) staining was performed on brain tissue sections to calculate the brain damage volume, and Picro Sirius Red (PSR) staining was performed on heart tissue sections to evaluate myocardial fibrosis. Terminal deoxynucleotide transferase dUTP nick end labeling (TUNEL) staining was employed to assess cell apoptosis 30 days after TBI. Transforming growth factor-beta (TGF-β) and NADPH oxidase-2 (NOX2) levels were assessed to evaluate inflammation and oxidative stress levels 30 days after TBI. Results TBI elicited acute and chronic cardiac deficits, identified by decreased left ventricular ejection fraction (LVEF) and fractional shortening (LVFS) values 3 and 30 days after TBI, in addition to neurological and cognitive deficits. TBI mice treated with HUCBCs exhibited enhanced LVEF and FS values 30 days after TBI compared with untreated TBI controls. HUCBC treatment significantly improved neurological and cognitive functions and reduced cardiomyocyte apoptosis, inflammatory response, oxidative stress, and cardiac fibrosis in heart tissues 30 days after TBI. Conclusions TBI induced both neurological deficits and cardiac dysfunction in mice, which were ameliorated by HUCBC treatment. The anti-inflammatory activities of HUCBCs may contribute to these observed therapeutic effects.
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Affiliation(s)
- Haotian Hu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Qiang Zhao
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Xiaoxuan Liu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Tao Yan
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma, Neurorepair, and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
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16
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Wang X, Li R, Zacharek A, Landschoot-Ward J, Chopp M, Chen J, Cui X. ApoA-I Mimetic Peptide Reduces Vascular and White Matter Damage After Stroke in Type-2 Diabetic Mice. Front Neurosci 2019; 13:1127. [PMID: 31708728 PMCID: PMC6823666 DOI: 10.3389/fnins.2019.01127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/04/2019] [Indexed: 01/04/2023] Open
Abstract
Diabetes leads to an elevated risk of stroke and worse functional outcome compared to the general population. We investigate whether L-4F, an economical ApoA-I mimetic peptide, reduces neurovascular and white-matter damage in db/db type-2 diabetic (T2DM) stroke mice. L-4F (16 mg/kg, subcutaneously administered initially 2 h after stroke and subsequently daily for 4 days) reduced hemorrhagic transformation, decreased infarct-volume and mortality, and treated mice exhibited increased cerebral arteriole diameter and smooth muscle cell number, decreased blood-brain barrier leakage and white-matter damage in the ischemic brain as well as improved neurological functional outcome after stroke compared with vehicle-control T2DM mice (p < 0.05, n = 11/group). Moreover, administration of L-4F mitigated macrophage infiltration, and reduced the level of proinflammatory mediators tumor necrosis factor alpha (TNFα), high-mobility group box-1 (HMGB-1)/advanced glycation end-product receptor (RAGE) and plasminogen activator inhibitor-1 (PAI-1) in the ischemic brain in T2DM mice (p < 0.05, n = 6/group). In vitro, L-4F treatment did not increase capillary-like tube formation in mouse-brain endothelial cells, but increased primary artery explant cell migration derived from C57BL/6-aorta 1 day after middle cerebral artery occlusion (MCAo), and enhanced neurite-outgrowth after 2 h of oxygen-glucose deprivation and axonal-outgrowth in primary cortical neurons derived from the C57BL/6-embryos subjected to high-glucose condition. This study suggests that early treatment with L-4F provides a potential strategy to reduce neuroinflammation and vascular and white-matter damage in the T2DM stroke population.
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Affiliation(s)
- Xiaohui Wang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Rongwen Li
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Alex Zacharek
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | | | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States.,Department of Physics, Oakland University, Rochester, MI, United States
| | - Jieli Chen
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Xu Cui
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
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17
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Abstract
PURPOSE OF REVIEW We review current knowledge regarding HDL and Alzheimer's disease, focusing on HDL's vasoprotective functions and potential as a biomarker and therapeutic target for the vascular contributions of Alzheimer's disease. RECENT FINDINGS Many epidemiological studies have observed that circulating HDL levels associate with decreased Alzheimer's disease risk. However, it is now understood that the functions of HDL may be more informative than levels of HDL cholesterol (HDL-C). Animal model studies demonstrate that HDL protects against memory deficits, neuroinflammation, and cerebral amyloid angiopathy (CAA). In-vitro studies using state-of-the-art 3D models of the human blood-brain barrier (BBB) confirm that HDL reduces vascular Aβ accumulation and attenuates Aβ-induced endothelial inflammation. Although HDL-based therapeutics have not been tested in clinical trials for Alzheimer's disease , several HDL formulations are in advanced phase clinical trials for coronary artery disease and atherosclerosis and could be leveraged toward Alzheimer's disease . SUMMARY Evidence from human studies, animal models, and bioengineered arteries supports the hypothesis that HDL protects against cerebrovascular dysfunction in Alzheimer's disease. Assays of HDL functions relevant to Alzheimer's disease may be desirable biomarkers of cerebrovascular health. HDL-based therapeutics may also be of interest for Alzheimer's disease, using stand-alone or combination therapy approaches.
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Affiliation(s)
- Emily B. Button
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jérôme Robert
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tara M. Caffrey
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jianjia Fan
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Wenchen Zhao
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cheryl L. Wellington
- Department of Pathology and Laboratory Medicine
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
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18
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Elgebaly MM, Arreguin J, Storke N. Targets, Treatments, and Outcomes Updates in Diabetic Stroke. J Stroke Cerebrovasc Dis 2019; 28:1413-1420. [PMID: 30904470 DOI: 10.1016/j.jstrokecerebrovasdis.2019.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 02/11/2019] [Indexed: 12/13/2022] Open
Abstract
GOAL Due to multiple failures to translate basic research, the need for novel therapeutic targets and strategies is still urgent to save a larger number of the stroke patients' population and to reduce the toxicity of the current stroke therapy. METHOD We summarize the most recent, within past 5 years, basic and clinical diabetic stroke research findings. FINDINGS We aim to examine the most current understanding of stroke and neurovascular unit integrity, especially in presence of hyperglycemia and/or diabetes mellitus. From there, we are comparing the meaningful findings that aim at treating diabetic stroke to see where they differ, where they succeed, and where they open questions for new therapeutic strategies. CONCLUSION The need for more clinically effective neuroprotective strategies is still mismatched with the bench side findings.
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Affiliation(s)
- Mostafa M Elgebaly
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, Florida.
| | - Jennifer Arreguin
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, Florida
| | - Niko Storke
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, Florida
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19
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Administration of Downstream ApoE Attenuates the Adverse Effect of Brain ABCA1 Deficiency on Stroke. Int J Mol Sci 2018; 19:ijms19113368. [PMID: 30373276 PMCID: PMC6274914 DOI: 10.3390/ijms19113368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 11/17/2022] Open
Abstract
The ATP-binding cassette transporter member A1 (ABCA1) and apolipoprotein E (ApoE) are major cholesterol transporters that play important roles in cholesterol homeostasis in the brain. Previous research demonstrated that specific deletion of brain-ABCA1 (ABCA1-B/-B) reduced brain grey matter (GM) and white matter (WM) density in the ischemic brain and decreased functional outcomes after stroke. However, the downstream molecular mechanism underlying brain ABCA1-deficiency-induced deficits after stroke is not fully understood. Adult male ABCA1-B/-B and ABCA1-floxed control mice were subjected to distal middle-cerebral artery occlusion and were intraventricularly infused with artificial mouse cerebrospinal fluid as vehicle control or recombinant human ApoE2 into the ischemic brain starting 24 h after stroke for 14 days. The ApoE/apolipoprotein E receptor 2 (ApoER2)/high-density lipoprotein (HDL) levels and GM/WM remodeling and functional outcome were measured. Although ApoE2 increased brain ApoE/HDL levels and GM/WM density, negligible functional improvement was observed in ABCA1-floxed-stroke mice. ApoE2-administered ABCA1-B/-B stroke mice exhibited elevated levels of brain ApoE/ApoER2/HDL, increased GM/WM density, and neurogenesis in both the ischemic ipsilateral and contralateral brain, as well as improved neurological function compared with the vehicle-control ABCA1-B/-B stroke mice 14 days after stroke. Ischemic lesion volume was not significantly different between the two groups. In vitro supplementation of ApoE2 into primary cortical neurons and primary oligodendrocyte-progenitor cells (OPCs) significantly increased ApoER2 expression and enhanced cholesterol uptake. ApoE2 promoted neurite outgrowth after oxygen-glucose deprivation and axonal outgrowth of neurons, and increased proliferation/survival of OPCs derived from ABCA1-B/-B mice. Our data indicate that administration of ApoE2 minimizes the adverse effects of ABCA1 deficiency after stroke, at least partially by promoting cholesterol traffic/redistribution and GM/WM remodeling via increasing the ApoE/HDL/ApoER2 signaling pathway.
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20
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Li M, Liu J, Bi Y, Chen J, Zhao L. Potential Medications or Compounds Acting on Toll-like Receptors in Cerebral Ischemia. Curr Neuropharmacol 2018; 16:160-175. [PMID: 28571545 PMCID: PMC5883378 DOI: 10.2174/1570159x15666170601125139] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/24/2017] [Accepted: 05/31/2017] [Indexed: 01/22/2023] Open
Abstract
Background: Toll-like receptors play an integral role in the process of inflammatory response after ischemic in-jury. The therapeutic potential acting on TLRs is worth of evaluations. The aim of this review was to introduce readers some potential medications or compounds which could alleviate the ischemic damage via TLRs. Methods: Research articles online on TLRs were reviewed. Categorizations were listed according to the follows, methods acting on TLRs directly, modulations of MyD88 or TRIF signaling pathway, and the ischemic tolerance induced by the pre-conditioning or postconditioning with TLR ligands or minor cerebral ischemia via acting on TLRs. Results: There are only a few studies concerning on direct effects. Anti-TLR4 or anti-TLR2 therapies may serve as promis-ing strategies in acute events. Approaches targeting on inhibiting NF-κB signaling pathway and enhancing interferon regu-latory factor dependent signaling have attracted great interests. Not only drugs but compounds extracted from traditional Chinese medicine have been used to identify their neuroprotective effects against cerebral ischemia. In addition, many re-searchers have reported the positive therapeutic effects of preconditioning with agonists of TLR2, 3, 4, 7 and 9. Several trails have also explored the potential of postconditioning, which provide a new idea in ischemic treatments. Considering all the evidence above, many drugs and new compounds may have great potential to reduce ischemic insults. Conclusion: This review will focus on promising therapies which exerting neuroprotective effects against ischemic injury by acting on TLRs.
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Affiliation(s)
- Man Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Liu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Department of Neurology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, China
| | - Ying Bi
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jixiang Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lei Zhao
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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21
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Zhao Q, Yan T, Li L, Chopp M, Venkat P, Qian Y, Li R, Wu R, Li W, Lu M, Zhang T, Chen J. Immune Response Mediates Cardiac Dysfunction after Traumatic Brain Injury. J Neurotrauma 2018; 36:619-629. [PMID: 30045672 DOI: 10.1089/neu.2018.5766] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cardiovascular complications are common after traumatic brain injury (TBI) and are associated with increased morbidity and mortality. In this study, we investigated the possible role of the immune system in mediating cardiac dysfunction post-TBI in mice. Adult male C57BL/6J mice were subjected to a TBI model of controlled cortical impact (CCI) with or without splenectomy (n = 20/group). Splenectomy was performed immediately prior to induction of TBI. Cardiac function was measured using echocardiography prior to and after TBI. Neurological and cognitive functional tests and flow cytometry and immunostaining were performed. TBI mice exhibited significant cardiac dysfunction identified by decreased left ventricular ejection fraction and fractional shortening at 3 and 30 days post-TBI. In addition, these mice exhibited significantly increased cardiomyocyte apoptosis, inflammation, and oxidative stress at 3 and 30 days post-TBI, as well as cardiac hypertrophy and fibrosis and ventricular dilatation at 30 days after TBI. TBI mice subjected to splenectomy showed significantly improved cardiac function, and decreased cardiac fibrosis, oxidative stress, cardiomyocyte apoptosis, and infiltration of immune cells and inflammatory factor expression in the heart compared with TBI control mice. TBI mice exhibited severe neurological and cognitive function deficits. However, splenectomy did not improve neurological and cognitive functional outcome after TBI compared with the TBI control group. TBI induces immune cell infiltration and inflammatory factor expression in the heart as well as cardiac dysfunction. Splenectomy decreases heart inflammation and improves cardiac function after TBI. Immune response may contribute to TBI-induced cardiac dysfunction.
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Affiliation(s)
- Qiang Zhao
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Tao Yan
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Linlin Li
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Michael Chopp
- 3 Department of Neurology, Henry Ford Hospital , Detroit, Michigan.,4 Department of Physics, Oakland University , Rochester, Michigan
| | - Poornima Venkat
- 3 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
| | - Yu Qian
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Ran Li
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Ruixia Wu
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Wei Li
- 1 Department of Geriatrics, Tianjin Medical University General Hospital , Tianjin, China .,2 Tianjin Neurological Institute , Neurology, Key Laboratory of Post Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China .,3 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
| | - Mei Lu
- 5 Department of Public Health Sciences, Henry Ford Hospital , Detroit, Michigan
| | - Talan Zhang
- 5 Department of Public Health Sciences, Henry Ford Hospital , Detroit, Michigan
| | - Jieli Chen
- 3 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
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22
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Wu G, McBride DW, Zhang JH. Axl activation attenuates neuroinflammation by inhibiting the TLR/TRAF/NF-κB pathway after MCAO in rats. Neurobiol Dis 2017; 110:59-67. [PMID: 29196212 DOI: 10.1016/j.nbd.2017.11.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 11/09/2017] [Accepted: 11/27/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND AND PURPOSE Ischemic stroke activates Toll-like receptors (TLRs), triggering rapid inflammatory cytokine production. Axl signaling has multiple roles, including regulating cytokine secretion, clearing apoptotic cells, and maintaining cell survival, however, its role in inflammation after ischemic stroke has not been examined. We hypothesized that activation of Axl by recombinant Growth-arrest-specific protein 6 (rGas6) attenuates neuroinflammation by inhibiting the TLR/TRAF/NF-κB pathway after middle cerebral artery occlusion (MCAO) in rats. METH: Sprague-Dawley rats were subjected to 2h of MCAO. One hour after reperfusion, the rats were given an intranasal injection of rGas6, vehicle, or R428 (Axl receptor inhibitor). Neurological scores, infarct volumes, immunofluorescence staining, Morris Water Maze, rotarod test and histology alterations were analyzed. The expressions of proinflammatory cytokines, including IL-1β, IL-6, TNF-α, and Gas6, Axl, STAT1, SOCS1, SOCS3 and the TLR/TRAF/NF-κB pathway were quantified using Western blot. RESULTS Endogenous expressions of Gas6 and Axl decreased significantly by 24h after MCAO. rGas6 reduced brain infarction and improved neurologic deficits scores, and increased expression of Axl and decreased the expressions of TRAF3, TRAF6 and inflammatory factors IL-1β, IL-6, and TNF-α. Four weeks after MCAO, rGas6 improved long-term neurological behavior and memory. Inhibition of the Axl/TLR/TRAF/NF-κB pathway reversed the brain protection by rGas6. CONCLUSION rGas6 reduced the neurological deficits by inhibiting neuroinflammation via the TLR/TRAF/NF-κB signaling pathway. rGas6 can be used as potential treatment to ischemic stroke.
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Affiliation(s)
- Guangyong Wu
- Departments of Anesthesiology, Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, USA; Department of Neurosurgery, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Devin W McBride
- Departments of Anesthesiology, Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, USA
| | - John H Zhang
- Departments of Anesthesiology, Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, USA.
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23
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Gandolfi M, Smania N, Vella A, Picelli A, Chirumbolo S. Assessed and Emerging Biomarkers in Stroke and Training-Mediated Stroke Recovery: State of the Art. Neural Plast 2017; 2017:1389475. [PMID: 28373915 PMCID: PMC5360976 DOI: 10.1155/2017/1389475] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/11/2017] [Indexed: 12/13/2022] Open
Abstract
Since the increasing update of the biomolecular scientific literature, biomarkers in stroke have reached an outstanding and remarkable revision in the very recent years. Besides the diagnostic and prognostic role of some inflammatory markers, many further molecules and biological factors have been added to the list, including tissue derived cytokines, growth factor-like molecules, hormones, and microRNAs. The literatures on brain derived growth factor and other neuroimmune mediators, bone-skeletal muscle biomarkers, cellular and immunity biomarkers, and the role of microRNAs in stroke recovery were reviewed. To date, biomarkers represent a possible challenge in the diagnostic and prognostic evaluation of stroke onset, pathogenesis, and recovery. Many molecules are still under investigation and may become promising and encouraging biomarkers. Experimental and clinical research should increase this list and promote new discoveries in this field, to improve stroke diagnosis and treatment.
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Affiliation(s)
- Marialuisa Gandolfi
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
- UOC Neurorehabilitation, AOUI Verona, Verona, Italy
| | - Nicola Smania
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
- UOC Neurorehabilitation, AOUI Verona, Verona, Italy
| | - Antonio Vella
- Immunology Unit, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Alessandro Picelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
- UOC Neurorehabilitation, AOUI Verona, Verona, Italy
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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24
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Liu QS, Li SR, Li K, Li X, Yin X, Pang Z. Ellagic acid improves endogenous neural stem cells proliferation and neurorestoration through Wnt/β-catenin signaling in vivo and in vitro. Mol Nutr Food Res 2016; 61. [PMID: 27794200 DOI: 10.1002/mnfr.201600587] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/25/2016] [Accepted: 09/30/2016] [Indexed: 01/09/2023]
Abstract
SCOPE The aim of this study is to research the effects of the polyphenol ellagic acid (EA) on brain cells and to explore its mechanism of action, and to evaluate whether EA can be safely utilized by humans as a functional food or therapeutic agent. METHODS AND RESULTS A photothrombosis-induced model of brain injury in rats was created, and EA was administered intragastrically to rats on 7 consecutive days post-venous ischemia. An oxygen-glucose deprivation and re-perfusion model was established in neural stem cells in order to research the effects on proliferation after 2 days of EA treatment in vitro. The administration of EA improved the rats' nerve-related abilities, remedied infarct volumes and morphological changes in the brain, and enhanced the content of nestin protein in the brain semidarkness zone. The proliferation of NSCs and the expression of β-catenin and Cyclin D1 genes were also increased in primary cultured NSCs. CONCLUSIONS EA administration can improve brain injury outcomes and increase the proliferation of NSCs through the Wnt/β-catenin signaling pathway. The presented results represent new insights on the mechanisms of the brain cell protective activity of EA. Thus, EA may be used in functional foods or medicines to help treat nerve dysfunction, neurodegenerative disease and aging.
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Affiliation(s)
- Qing-Shan Liu
- Key Lab of Ministry of Education, National Research Center for Minority Medicine and Nutrition, Minzu University of China, Beijing, China
| | - Shu-Ran Li
- Key Lab of Ministry of Education, National Research Center for Minority Medicine and Nutrition, Minzu University of China, Beijing, China
| | - Keqin Li
- Key Lab of Ministry of Education, National Research Center for Minority Medicine and Nutrition, Minzu University of China, Beijing, China
| | - Xu Li
- Key Lab of Ministry of Education, National Research Center for Minority Medicine and Nutrition, Minzu University of China, Beijing, China
| | - Xiaoying Yin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Zongran Pang
- Key Lab of Ministry of Education, National Research Center for Minority Medicine and Nutrition, Minzu University of China, Beijing, China
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25
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Carbone F, Satta N, Montecucco F, Virzi J, Burger F, Roth A, Roversi G, Tamborino C, Casetta I, Seraceni S, Trentini A, Padroni M, Dallegri F, Lalive PH, Mach F, Fainardi E, Vuilleumier N. Anti-ApoA-1 IgG serum levels predict worse poststroke outcomes. Eur J Clin Invest 2016; 46:805-17. [PMID: 27490973 DOI: 10.1111/eci.12664] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/01/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Autoantibodies to apolipoprotein A-1 (anti-ApoA-1 IgG) were shown to predict major adverse cardiovascular events and promote atherogenesis. However, their potential relationship with clinical disability and ischaemic lesion volume after acute ischaemic stroke (AIS) remains unexplored. MATERIALS AND METHODS We included n = 76 patients admitted for AIS and we investigated whether baseline serum anti-ApoA-1 IgG levels could predict (i) AIS-induced clinical disability [assessed by the modified Rankin Scale (mRS)], and (ii) AIS-related ischaemic lesion volume [assessed by Computed Tomography (CT)]. We also evaluated the possible pro-apoptotic and pro-necrotic effects of anti-ApoA-1 IgG on human astrocytoma cell line (U251) using flow cytometry. RESULTS High levels of anti-ApoA-1 IgG were retrieved in 15·8% (12/76) of patients. Increased baseline levels of anti-ApoA-1 IgG were independently correlated with worse mRS [β = 0·364; P = 0·002; adjusted odds ratio (OR): 1·05 (95% CI 1·01-1·09); P = 0·017] and CT-assessed ischaemic lesion volume [β = 0·333; P < 0·001; adjusted OR: 1·06 (95% CI 1·01-1·12); P = 0·048] at 3 months. No difference in baseline clinical, biochemical and radiological characteristics was observed between patients with high vs. low levels of anti-ApoA-1 IgG. Incubating human astrocytoma cells with anti-ApoA-1 IgG dose dependently induced necrosis and apoptosis of U251 cells in vitro. CONCLUSION Anti-ApoA-1 IgG serum levels at AIS onset are associated with poorer clinical recovery and worse brain lesion volume 3 months after AIS. These observations could be partly explained by the deleterious effect of anti-ApoA-1 IgG on human brain cell survival in vitro and may have clinical implication in the prediction of poor outcome in AIS.
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Affiliation(s)
- Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, School of Medicine, University of Genoa, Genoa, Italy
| | - Nathalie Satta
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, School of Medicine, University of Genoa, Genoa, Italy.,IRCCS AOU San Martino - IST, Genoa, Italy.,Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | - Julien Virzi
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Fabienne Burger
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Aline Roth
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Gloria Roversi
- Department of Biological, Psychiatric and Psychological Science, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Carmine Tamborino
- Department of Biological, Psychiatric and Psychological Science, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Ilaria Casetta
- Department of Biological, Psychiatric and Psychological Science, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Silva Seraceni
- Institute for Maternal and Child Health 'IRCCS Burlo Garofolo', Trieste, Italy
| | - Alessandro Trentini
- Section of Medical Biochemistry, Molecular Biology and Genetics, Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Marina Padroni
- Section of Medical Biochemistry, Molecular Biology and Genetics, Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Franco Dallegri
- First Clinic of Internal Medicine, Department of Internal Medicine, School of Medicine, University of Genoa, Genoa, Italy.,IRCCS AOU San Martino - IST, Genoa, Italy
| | - Patrice H Lalive
- Division of Neurology, Department of Clinical Neurosciences, Geneva University Hospital, Geneva, Switzerland
| | - François Mach
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Enrico Fainardi
- Neuroradiology Unit, Department of Neurosciences and Rehabilitation, Azienda Ospedaliera-Universitaria, Arcispedale S. Anna, Ferrara, Italy
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland
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