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Deng XX, Li SS, Sun FY. Necrostatin-1 Prevents Necroptosis in Brains after Ischemic Stroke via Inhibition of RIPK1-Mediated RIPK3/MLKL Signaling. Aging Dis 2019; 10:807-817. [PMID: 31440386 PMCID: PMC6675533 DOI: 10.14336/ad.2018.0728] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 07/28/2018] [Indexed: 12/11/2022] Open
Abstract
Pharmacological studies have indirectly shown that necroptosis participates in ischemic neuronal death. However, its mechanism has yet to be elucidated in the ischemic brain. TNFα-triggered RIPK1 kinase activation could initiate RIPK3/MLKL-mediated necroptosis under inhibition of caspase-8. In the present study, we performed middle cerebral artery occlusion (MCAO) to induce cerebral ischemia in rats and used immunoblotting and immunostaining combined with pharmacological analysis to study the mechanism of necroptosis in ischemic brains. In the ipsilateral hemisphere, we found that ischemia induced the increase of (i) RIPK1 phosphorylation at the Ser166 residue (p-RIPK1), representing active RIPK1 kinase and (ii) the number of cells that were double stained with P-RIPK1 (Ser166) (p-RIPK1+) and TUNEL, a label of DNA double-strand breaks, indicating cell death. Furthermore, ischemia induced activation of downstream signaling factors of RIPK1, RIPK3 and MLKL, as well as the formation of mature interleukin-1β (IL-1β). Treatment with necrostatin-1 (Nec-1), an inhibitor of necroptosis, significantly decreased ischemia-induced increase of p-RIPK1 expression and p-RIPK1+ neurons, which showed protection from brain damage. Meanwhile, Nec-1 reduced RIPK3, MLKL and p-MLKL expression levels and mature IL-1β formation in Nec-1 treated ischemic brains. Our results clearly demonstrated that phosphorylation of RIPK1 at the Ser166 residue was involved in the pathogenesis of necroptosis in the brains after ischemic injury. Nec-1 treatment protected brains against ischemic necroptosis by reducing the activation of RIPK1 and inhibiting its downstream signaling pathways. These results provide direct in vivo evidence that phosphorylated RIPK1 (Ser 166) plays an important role in the initiation of RIPK3/MLKL-dependent necroptosis in the pathogenesis of ischemic stroke in the rodent brain.
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Affiliation(s)
- Xu-Xu Deng
- 1Department of Neurobiology, School of Basic Medical Sciences and National Clinical Research Center for Aging and Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,2Institute for Basic Research on Aging and Medicine, the State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Shan-Shan Li
- 1Department of Neurobiology, School of Basic Medical Sciences and National Clinical Research Center for Aging and Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,2Institute for Basic Research on Aging and Medicine, the State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Feng-Yan Sun
- 1Department of Neurobiology, School of Basic Medical Sciences and National Clinical Research Center for Aging and Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,2Institute for Basic Research on Aging and Medicine, the State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,3Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital, Fudan University, Shanghai, China
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52
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RIPK1 inhibitor Cpd-71 attenuates renal dysfunction in cisplatin-treated mice via attenuating necroptosis, inflammation and oxidative stress. Clin Sci (Lond) 2019; 133:1609-1627. [DOI: 10.1042/cs20190599] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/12/2019] [Accepted: 07/17/2019] [Indexed: 12/13/2022]
Abstract
Abstract
Acute kidney injury (AKI) is a destructive clinical condition induced by multiple insults including ischemic reperfusion, nephrotoxic drugs and sepsis. It is characterized by a sudden decline in renal function, in addition to excessive inflammation, oxidative stress and programmed cell death of renal tubular epithelial cells. RIPK1-mediated necroptosis plays an important role in AKI. In the present study, we evaluated the treatment effects of Compound-71 (Cpd-71), a novel RIPK1 inhibitor, by comparing with Necrostatin-1 (Nec-1), a classic RIPK1 inhibitor, which has several drawbacks like the narrow structure–activity relationship (SAR) profile, moderate potency and non-ideal pharmacokinetic properties, in vivo and in vitro. Our results showed that pretreatment of Cpd-71 attenuated cisplatin-induced renal injury, restored renal function and suppressed renal inflammation, oxidative stress and cell necroptosis. In addition, Cpd-71 inhibited renal damage while reducing the up-regulated serum creatinine (Cr) and blood urea nitrogen (BUN) levels in established AKI mice model. Consistently, we confirmed that Cpd-71 exhibited more effectively suppressive effect on cisplatin-induced renal tubular cell necroptosis than Nec-1, by physically binding to the allosteric type III ligand binding site of RIPK1, thereby reduced RIPK1 kinase activity, RIPK1/RIPK3 complex formation and phosphor-MLKL membrane translocation by molecular docking, Western blot, co-immunoprecipitation and cellular thermal shift assay (CETSA). Taken together, we currently showed that targeting RIPK1 with Cpd-71 may serve as a promising clinical candidate for AKI treatment.
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Wu J, Lipinski MM. Autophagy in Neurotrauma: Good, Bad, or Dysregulated. Cells 2019; 8:E693. [PMID: 31295858 PMCID: PMC6678153 DOI: 10.3390/cells8070693] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/06/2019] [Accepted: 07/09/2019] [Indexed: 12/12/2022] Open
Abstract
Autophagy is a physiological process that helps maintain a balance between the manufacture of cellular components and breakdown of damaged organelles and other toxic cellular constituents. Changes in autophagic markers are readily detectable in the spinal cord and brain following neurotrauma, including traumatic spinal cord and brain injury (SCI/TBI). However, the role of autophagy in neurotrauma remains less clear. Whether autophagy is good or bad is under debate, with strong support for both a beneficial and detrimental role for autophagy in experimental models of neurotrauma. Emerging data suggest that autophagic flux, a measure of autophagic degradation activity, is impaired in injured central nervous systems (CNS), and interventions that stimulate autophagic flux may provide neuroprotection in SCI/TBI models. Recent data demonstrating that neurotrauma can cause lysosomal membrane damage resulting in pathological autophagosome accumulation in the spinal cord and brain further supports the idea that the impairment of the autophagy-lysosome pathway may be a part of secondary injury processes of SCI/TBI. Here, we review experimental work on the complex and varied responses of autophagy in terms of both the beneficial and detrimental effects in SCI and TBI models. We also discuss the existing and developing therapeutic options aimed at reducing the disruption of autophagy to protect the CNS after injuries.
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Affiliation(s)
- Junfang Wu
- Department of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Center to Advance Chronic Pain Research, University of Maryland, Baltimore, MD 21201, USA.
| | - Marta M Lipinski
- Department of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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54
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Wang Y, Jiao J, Ren P, Wu M. Upregulation of miRNA-223-3p ameliorates RIP3-mediated necroptosis and inflammatory responses via targeting RIP3 after spinal cord injury. J Cell Biochem 2019; 120:11582-11592. [PMID: 30821011 DOI: 10.1002/jcb.28438] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/01/2018] [Accepted: 12/06/2018] [Indexed: 01/24/2023]
Abstract
Spinal cord injury (SCI) has been a major burden on the society because of the high rate of disability. Receptor-interacting protein 3 (RIP3)-mediated necroptosis is a newly discovered pathway of programmed cell death and is involved in multiple pathologies of various human diseases. Micro RNAs (miRNAs) have been shown to be a potential target for therapeutic interventions after SCI. The aim of the present study is to explore the potential role of miR-223-3p and possible mechanism in SCI. We found that miR-223-3p was significantly downregulated in spinal neurons after H2 O 2 -induced damage, while RIP3-mediated necroptosis was elevated. Accordingly, RIP3-mediated necroptosis and the inflammatory factor secretion could be significantly inhibited by Nec-1 treatment. In adittion, overexpression of miR-223-3p in spinal neurons protected against H 2 O 2 -induced necroptosis, and ablation of miR-223-3p exhibited the opposite effect. We found that miR-223-3p bound to the 3'-untranslated region of RIP3 mRNA to negatively regulate the expression of RIP3. Moreover, the activated RIP3 reversed the inhibition of RIP3 and MLKL expression and the levels of TNF-α, IL-1β, and lactate dehydrogenase, which were induced by transfection with miR-223-3p in a H 2 O 2 -induced model. Finally, these results indicate that miR-223-3p negatively regulates the RIP3 necroptotic signaling cascades and inflammatory factor secretion, which significantly relieves injury of spinal neurons. The miR-223-3p/RIP3 pathway offers a novel therapeutic target for the protection of spinal neurons after SCI.
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Affiliation(s)
- Yang Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jianhang Jiao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Pengfei Ren
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Minfei Wu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China
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55
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Ni H, Rui Q, Lin X, Li D, Liu H, Chen G. 2-BFI Provides Neuroprotection Against Inflammation and Necroptosis in a Rat Model of Traumatic Brain Injury. Front Neurosci 2019; 13:674. [PMID: 31293382 PMCID: PMC6606784 DOI: 10.3389/fnins.2019.00674] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 06/12/2019] [Indexed: 12/13/2022] Open
Abstract
Inflammation and programmed necrosis (necroptosis) are the two hallmark pathological changes after traumatic brain injury (TBI) that contribute to aggravated brain damage. 2-(2-Benzofuranyl)-2-imidazoline (2-BFI) has been shown to exert both anti-inflammatory and programmed cell death effects. Therefore, the aim of the present study was to evaluate the potential beneficial effects of 2-BFI in a rat model of TBI induced by a weight-drop device. 2-BFI or vehicle was given via intraperitoneal injection starting at 30 min post trauma and then twice daily for three consecutive days. Following a neurofunctional test at 72 h after injury, histological, molecular, and immunohistochemistry analyses were performed on the pericontusional areas of the brain. 2-BFI treatment significantly attenuated neurological deficits, brain edema and blood-brain barrier permeability after TBI. Also, treatment with 2-BFI significantly reduced microglial activation, neutrophil infiltration, and proinflammatory cytokine interleukin (IL)-1β secretion, which is related to nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome activation after TBI. In addition, 2-BFI treatment markedly reduced cortical tissue loss as well as repressed TBI-induced increases in necroptosis and necroptosis-associated proteins, including receptor-interacting protein (RIP1), RIP3, and mixed linkage kinase domain-like (MLKL) in the pericontusional brain tissue. Taken together, these findings indicate that 2-BFI may be an effective neuroprotectant after brain trauma and warrants further study.
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Affiliation(s)
- Haibo Ni
- Department of Neurosurgery, Zhangjiagang First People's Hospital, Suzhou, China
| | - Qin Rui
- Department of Laboratory, Zhangjiagang First People's Hospital, Suzhou, China
| | - Xiaolong Lin
- Department of Orthopedics, Zhangjiagang First People's Hospital, Suzhou, China
| | - Di Li
- Department of Translational Medicine Center, Zhangjiagang First People's Hospital, Suzhou, China
| | - Huixiang Liu
- Department of Neurosurgery, Zhangjiagang First People's Hospital, Suzhou, China
| | - Gang Chen
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
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56
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Franz CK, Joshi D, Daley EL, Grant RA, Dalamagkas K, Leung A, Finan JD, Kiskinis E. Impact of traumatic brain injury on amyotrophic lateral sclerosis: from bedside to bench. J Neurophysiol 2019; 122:1174-1185. [PMID: 31116639 DOI: 10.1152/jn.00572.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by the loss of upper and lower motor neurons, which manifests clinically as progressive weakness. Although several epidemiological studies have found an association between traumatic brain injury (TBI) and ALS, there is not a consensus on whether TBI is an ALS risk factor. It may be that it can cause ALS in a subset of susceptible patients, based on a history of repetitive mild TBI and genetic predisposition. This cannot be determined based on clinical observational studies alone. Better preclinical models are necessary to evaluate the effects of TBI on ALS onset and progression. To date, only a small number of preclinical studies have been performed, mainly in the superoxide dismutase 1 transgenic rodents, which, taken together, have mixed results and notable methodological limitations. The more recent incorporation of additional animal models such as Drosophila flies, as well as patient-induced pluripotent stem cell-derived neurons, should facilitate a better understanding of a potential functional interaction between TBI and ALS.
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Affiliation(s)
- Colin K Franz
- Biologics Laboratory, Shirley Ryan AbilityLab, Chicago, Illinois.,Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Divya Joshi
- Biologics Laboratory, Shirley Ryan AbilityLab, Chicago, Illinois
| | - Elizabeth L Daley
- The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Rogan A Grant
- The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kyriakos Dalamagkas
- Department of Physical Medicine and Rehabilitation, McGovern Medical School, TIRR Memorial Hermann, Houston, Texas
| | - Audrey Leung
- Biologics Laboratory, Shirley Ryan AbilityLab, Chicago, Illinois.,Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - John D Finan
- Department of Neurosurgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Evangelos Kiskinis
- The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,Department of Physiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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57
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Liang YX, Wang NN, Zhang ZY, Juan ZD, Zhang C. Necrostatin-1 Ameliorates Peripheral Nerve Injury-Induced Neuropathic Pain by Inhibiting the RIP1/RIP3 Pathway. Front Cell Neurosci 2019; 13:211. [PMID: 31156396 PMCID: PMC6529821 DOI: 10.3389/fncel.2019.00211] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/26/2019] [Indexed: 12/22/2022] Open
Abstract
Necrostatin-1 is an inhibitor of necroptosis, a form of programmed cell death that has been reported to be involved in various neurological diseases. Presently, the role of necroptosis in neuropathic pain induced by peripheral nerve injury is still unclear. This study was focused on investigating the potential effects of necroptosis in the development and progression of neuropathic pain in a rat model and the possible neuroprotective effects of necrostatin-1 in neuropathic pain. The results indicated that the necroptosis-related proteins RIP1 and RIP3 significantly increased postoperation in the spinal cord in a neuropathic pain model and peaked 7 days postoperation, which was consistent with the time-dependent changes of hyperalgesia. Additionally, we found that peripheral nerve injury-related behavioral and biochemical changes were significantly reduced by necrostatin-1. In particular, hyperalgesia was attenuated, and the levels of RIP1 and RIP3 were decreased. Furthermore, the ultrastructure of necrotic cell death and neuroinflammation were alleviated by necrostatin-1. Collectively, these results suggest that necroptosis is an important mechanism of cell death in neuropathic pain induced by peripheral nerve injury and that necrostatin-1 may be a promising neuroprotective treatment for neuropathic pain.
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Affiliation(s)
- Ying-Xia Liang
- Medicine and Health Key Laboratory of Clinical Anesthesia, Department of Anesthesiology, Weifang Medical University, Weifang, China.,Genetics and Aging Research Unit, Department of Neurology, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States
| | - Nan-Nan Wang
- Medicine and Health Key Laboratory of Clinical Anesthesia, Department of Anesthesiology, Weifang Medical University, Weifang, China
| | - Zhi-Yu Zhang
- Department of Microsurgery, Shouguang People's Hospital, Weifang, China
| | - Zhao-Dong Juan
- Medicine and Health Key Laboratory of Clinical Anesthesia, Department of Anesthesiology, Weifang Medical University, Weifang, China
| | - Can Zhang
- Genetics and Aging Research Unit, Department of Neurology, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States
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58
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Choi MJ, Kang H, Lee YY, Choo OS, Jang JH, Park SH, Moon JS, Choi SJ, Choung YH. Cisplatin-Induced Ototoxicity in Rats Is Driven by RIP3-Dependent Necroptosis. Cells 2019; 8:E409. [PMID: 31052605 PMCID: PMC6562419 DOI: 10.3390/cells8050409] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 12/22/2022] Open
Abstract
Cisplatin-induced early-onset ototoxicity is linked to hearing loss. The mechanism by which cisplatin causes ototoxicity remains unclear. The purpose of this study was to identify the involvement of receptor-interacting protein kinase (RIP)3-dependent necroptosis in cisplatin-induced ototoxicity in vitro and in vivo. Sprague-Dawley rats (SD, 8 week) were treated via intraperitoneal (i.p.) injection with cisplatin (16 mg/kg for 1 day), and their hearing thresholds were measured by the auditory brainstem response (ABR) method. Hematoxylin and eosin (H & E) staining, immunohistochemistry, and western blots were performed to determine the effect of cisplatin-induced ototoxicity on cochlear morphology. Inhibitor experiments with necrostatin 1 (Nec-1) and Z-VAD were also performed in HEI-OC1 cell line. H&E stains revealed that the necroptotic changes were increased in the organ of Corti (OC) and spiral ganglion neurons (SGNs). Moreover, immunohistochemistry and western blot analysis showed that cisplatin treatment increased the protein levels of RIP3 in both OCs and SGNs. The treatment of Nec-1, a selective RIP1 inhibitor, resulted in markedly suppression of cisplatin-induced cell death in HEI-OC1 cells, whereas Z-VAD treatment did not change the cisplatin-induced cell death. Our results suggest that RIP3-dependent necroptosis was substantial in cisplatin-induced ototoxicity; inner cochlear regions, the OCs, and SGNs were especially sensitive to necroptosis.
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Affiliation(s)
- Mi-Jin Choi
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
| | - Hyunsook Kang
- Department of Otolaryngology-Head and Neck Surgery, Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan 31151, Korea.
| | - Yun Yeong Lee
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
| | - Oak-Sung Choo
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
| | - Jeong Hun Jang
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
| | - Sung-Hee Park
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
| | - Jong-Seok Moon
- Soonchunhyang Institute of Medi-bio Science, Soonchunhyang University, Cheonan 31151, Korea.
| | - Seong Jun Choi
- Department of Otolaryngology-Head and Neck Surgery, Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan 31151, Korea.
| | - Yun-Hoon Choung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea.
- Bk21 Plus Research Center for Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea.
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59
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Abstract
RIPK1 plays a critical role in mediating deleterious responses downstream of TNFR1. RIPK1 inhibitors have been progressed successfully past human phase I clinical studies. This paper discusses why RIPK1 inhibitors present an opportunity for developing oral drugs for a range of human degenerative and inflammatory diseases, especially CNS pathologies, including ALS, Alzheimer’s disease, Parkinson’s disease, traumatic brain injury, stroke, and lysosomal storage diseases. RIPK1 kinase has emerged as a promising therapeutic target for the treatment of a wide range of human neurodegenerative, autoimmune, and inflammatory diseases. This was supported by extensive studies which demonstrated that RIPK1 is a key mediator of apoptotic and necrotic cell death as well as inflammatory pathways. Furthermore, human genetic evidence has linked the dysregulation of RIPK1 to the pathogenesis of ALS as well as other inflammatory and neurodegenerative diseases. Importantly, unique allosteric small-molecule inhibitors of RIPK1 that offer high selectivity have been developed. These molecules can penetrate the blood–brain barrier, thus offering the possibility to target neuroinflammation and cell death which drive various neurologic conditions including Alzheimer’s disease, ALS, and multiple sclerosis as well as acute neurological diseases such as stroke and traumatic brain injuries. We discuss the current understanding of RIPK1 regulatory mechanisms and emerging evidence for the pathological roles of RIPK1 in human diseases, especially in the context of the central nervous systems.
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60
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Anthonymuthu TS, Kenny EM, Hier ZE, Clark RSB, Kochanek PM, Kagan VE, Bayır H. Detection of brain specific cardiolipins in plasma after experimental pediatric head injury. Exp Neurol 2019; 316:63-73. [PMID: 30981805 DOI: 10.1016/j.expneurol.2019.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/14/2019] [Accepted: 04/10/2019] [Indexed: 12/20/2022]
Abstract
Cardiolipin (CL) is a mitochondria-specific phospholipid that is central to maintenance and regulation of mitochondrial bioenergetic and metabolic functions. CL molecular species display great tissue variation with brain exhibiting a distinct, highly diverse CL population. We recently showed that the appearance of unique brain-type CLs in plasma could serve as a brain-specific marker of mitochondrial/tissue injury in patients after cardiac arrest. Mitochondrial dysfunction has been increasingly implicated as a critical mechanism underlying the pathogenesis of traumatic brain injury (TBI). Therefore, we hypothesized that unique, brain-specific CL species from the injured brain are released to the peripheral circulation after TBI. To test this hypothesis, we performed a high-resolution mass spectrometry based phospholipidomics analysis of post-natal day (PND)17 rat brain and plasma after controlled cortical impact. We found a time-dependent increase in plasma CLs after TBI including the aforementioned brain-specific CL species early after injury, whereas CLs were significantly decreased in the injured brain. Compositional and quantitative correlational analysis suggested a possible release of CL into the systemic circulation following TBI. The identification of brain-type CLs in systemic circulation may indicate underlying mitochondrial dysfunction/loss after TBI. They may have potential as pharmacodynamics response biomarkers for targeted therapies.
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Affiliation(s)
- Tamil S Anthonymuthu
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Children's Neuroscience Institute, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Elizabeth M Kenny
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Children's Neuroscience Institute, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Zachary E Hier
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Children's Neuroscience Institute, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Robert S B Clark
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA
| | - Patrick M Kochanek
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA
| | - Valerian E Kagan
- Children's Neuroscience Institute, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA; Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA; Laboratory of Navigational Redox Lipidomics, IM Sechenov Moscow Medical State University, Russia
| | - Hülya Bayır
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Children's Neuroscience Institute, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA; Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
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61
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Zhang Q, Wei S, Lu J, Fu W, Chen H, Huang Q, Chen Z, Zeng Z. Necrostatin-1 accelerates time to death in a rat model of cecal ligation and puncture and massively increases hepatocyte caspase-3 cleavage. Am J Physiol Gastrointest Liver Physiol 2019; 316:G551-G561. [PMID: 30735454 DOI: 10.1152/ajpgi.00175.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Necroptosis, a form of regulated necrosis, has been reported to be involved in numerous pathologies, including sepsis. However, a protective effect of the selective inhibitor of necroptosis, necrostatin-1 (Nec-1), against sepsis remains to be confirmed. Animals (rats and mice) were subjected to cecal ligation and puncture (CLP) to mimic clinical sepsis. Nec-1 or its vehicle (control) was administered 20 min before CLP. Survival time was observed up to 72 h after CLP. Specimens of liver tissue and serum were obtained at 6 h, 12 h, and 18 h. Expression of necroptosis-related proteins [receptor-interacting protein kinase (RIP)1, RIP3, and mixed lineage kinase domain-like (MLKL)] was determined by Western blot analysis. The RIP1/RIP3 interaction and the recruitment of MLKL to RIP3 were also analyzed. Liver function, histopathological changes, serum inflammation cytokines, TUNEL staining, and the expression of apoptosis-related protein, including caspase-3, B-cell lymphoma 2 (Bcl-2), and Bcl-2-associated X (Bax), was determined. As expected, Nec-1 administration reduced the expression of necroptosis-related proteins and the RIP1/RIP3 interaction, indicating inhibited necroptosis. Surprisingly, Nec-1 treatment exacerbated the liver injury and shortened survival time of septic rats with increased TUNEL-positive cells, cleaved caspase-3 protein content, and Bax/Bcl-2 ratio. Collectively, these findings show that Nec-1 administration inhibited the hepatocyte necroptosis pathway but accelerated apoptosis via the apoptotic pathway in CLP-induced sepsis rat. NEW & NOTEWORTHY The present study demonstrated that a chemical inhibitor necrostatin-1 (Nec-1) or receptor-interacting protein kinase(RIP1) knock down targeted at necroptosis inhibition accelerated liver injury of following sepsis. For fundamental research, these results warrant further investigation of the potential link between Nec-1 administration and the cellular apoptosis following sepsis induced liver injury. For applied research, these results suggest the potential harmful effect of Nec-1 on future sepsis treatment.
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Affiliation(s)
- Qin Zhang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China.,Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Siwei Wei
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China.,Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Jiayin Lu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China.,Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Weijun Fu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Hui Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Qiaobing Huang
- Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China.,Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
| | - Zhenhua Zeng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Peoples Republic of China.,Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology, Southern Medical University, Guangzhou, Peoples Republic of China
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Wang ZF, Gao C, Chen W, Gao Y, Wang HC, Meng Y, Luo CL, Zhang MY, Chen G, Chen XP, Wang T, Tao LY. Salubrinal offers neuroprotection through suppressing endoplasmic reticulum stress, autophagy and apoptosis in a mouse traumatic brain injury model. Neurobiol Learn Mem 2019; 161:12-25. [PMID: 30851432 DOI: 10.1016/j.nlm.2019.03.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 02/17/2019] [Accepted: 03/05/2019] [Indexed: 12/22/2022]
Abstract
Traumatic brain injury (TBI) is a complex injury that can cause severe disabilities and even death. TBI can induce secondary injury cascades, including but not limited to endoplasmic reticulum (ER) stress, apoptosis and autophagy. Although the investigators has previously shown that salubrinal, the selective phosphatase inhibitor of p-eIF2α, ameliorated neurologic deficits in murine TBI model, the neuroprotective mechanisms of salubrinal need further research to warrant the preclinical value. This study was undertaken to characterize the effects of salubrinal on cell death and neurological outcomes following TBI in mice and the potential mechanisms. In the current study, ER stress-related proteins including p-eIF2α, GRP78 and CHOP showed peak expressions both in the cortex and hippocampus from day 2 to day 3 after TBI, indicating ER stress was activated in our TBI model. Immunofluorescence staining showed that CHOP co-located NeuN-positive neuron, GFAP-positive astrocyte, Iba-1-positive microglia, CD31-positive vascular endothelial cell and PDGFR-β-positive pericyte in the cortex on day 2 after TBI, and these cells mentioned above constitute the neurovascular unit (NVU). We also found TBI-induced plasmalemma permeability, motor dysfunction, spatial learning and memory deficits and brain lesion volume were alleviated by continuous intraperitoneal administration of salubrinal post TBI. To investigate the underlying mechanisms further, we determined that salubrinal suppressed the expression of ER stress, autophagy and apoptosis related proteins on day 2 after TBI. In addition, salubrinal administration decreased the number of CHOP+/TUNEL+ and CHOP+/LC3+ cells on day 2 after TBI, detected by immunofluorescence. In conclusion, these data imply that salubrinal treatment improves morphological and functional outcomes caused by TBI in mice and these neuroprotective effects may be associated with inhibiting apoptosis, at least in part by suppressing ER stress-autophagy pathway.
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Affiliation(s)
- Zu-Feng Wang
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Cheng Gao
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Wei Chen
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Yuan Gao
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, China
| | - Hao-Chen Wang
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Ying Meng
- Community Health Center, Suzhou Western Eco-City, Suzhou 215161, China
| | - Cheng-Liang Luo
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Ming-Yang Zhang
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Guang Chen
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Xi-Ping Chen
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China
| | - Tao Wang
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China; Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.
| | - Lu-Yang Tao
- Department of Forensic Medicine, Medical School of Soochow University, Suzhou 215123, China.
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Kenny EM, Fidan E, Yang Q, Anthonymuthu TS, New LA, Meyer EA, Wang H, Kochanek PM, Dixon CE, Kagan VE, Bayır H. Ferroptosis Contributes to Neuronal Death and Functional Outcome After Traumatic Brain Injury. Crit Care Med 2019; 47:410-418. [PMID: 30531185 PMCID: PMC6449247 DOI: 10.1097/ccm.0000000000003555] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Traumatic brain injury triggers multiple cell death pathways, possibly including ferroptosis-a recently described cell death pathway that results from accumulation of 15-lipoxygenase-mediated lipid oxidation products, specifically oxidized phosphatidylethanolamine containing arachidonic or adrenic acid. This study aimed to investigate whether ferroptosis contributed to the pathogenesis of in vitro and in vivo traumatic brain injury, and whether inhibition of 15-lipoxygenase provided neuroprotection. DESIGN Cell culture study and randomized controlled animal study. SETTING University research laboratory. SUBJECTS HT22 neuronal cell line and adult male C57BL/6 mice. INTERVENTIONS HT22 cells were subjected to pharmacologic induction of ferroptosis or mechanical stretch injury with and without administration of inhibitors of ferroptosis. Mice were subjected to sham or controlled cortical impact injury. Injured mice were randomized to receive vehicle or baicalein (12/15-lipoxygenase inhibitor) at 10-15 minutes postinjury. MEASUREMENTS AND MAIN RESULTS Pharmacologic inducers of ferroptosis and mechanical stretch injury resulted in cell death that was rescued by prototypical antiferroptotic agents including baicalein. Liquid chromatography tandem-mass spectrometry revealed the abundance of arachidonic/adrenic-phosphatidylethanolamine compared with other arachidonic/adrenic acid-containing phospholipids in the brain. Controlled cortical impact resulted in accumulation of oxidized phosphatidylethanolamine, increased expression of 15-lipoxygenase and acyl-CoA synthetase long-chain family member 4 (enzyme that generates substrate for the esterification of arachidonic/adrenic acid into phosphatidylethanolamine), and depletion of glutathione in the ipsilateral cortex. Postinjury administration of baicalein attenuated oxidation of arachidonic/adrenic acid-containing-phosphatidylethanolamine, decreased the number of terminal deoxynucleotidyl transferase dUTP nick-end labeling positive cells in the hippocampus, and improved spatial memory acquisition versus vehicle. CONCLUSIONS Biomarkers of ferroptotic death were increased after traumatic brain injury. Baicalein decreased ferroptotic phosphatidylethanolamine oxidation and improved outcome after controlled cortical impact, suggesting that 15-lipoxygenase pathway might be a valuable therapeutic target after traumatic brain injury.
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Affiliation(s)
- Elizabeth M. Kenny
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Emin Fidan
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Qin Yang
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Tamil S. Anthonymuthu
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Lee Ann New
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Elizabeth A. Meyer
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Hong Wang
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Patrick M. Kochanek
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
| | - C. Edward Dixon
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Valerian E. Kagan
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15213
| | - Hülya Bayır
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213
- Safar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, 15213
- Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, 15213
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15213
- Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA, 15213
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Jun-Long H, Yi L, Bao-Lian Z, Jia-Si L, Ning Z, Zhou-Heng Y, Xue-Jun S, Wen-Wu L. Necroptosis Signaling Pathways in Stroke: From Mechanisms to Therapies. Curr Neuropharmacol 2018; 16:1327-1339. [PMID: 29663889 PMCID: PMC6251040 DOI: 10.2174/1570159x16666180416152243] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 11/20/2017] [Accepted: 02/28/2018] [Indexed: 12/17/2022] Open
Abstract
It has been confirmed that apoptosis, autophagy and necrosis are the three major modes of cell death. For a long time, necrosis is regarded as a deranged or accidental cell demise. In recent years, there is evidence showing that necrotic cell death can be a well regulated and orchestrated event, which is also known as programmed cell death or “necroptosis”. Necroptosis can be triggered by a variety of external stimuli and regulated by a caspase-independent pathway. It plays a key role in the pathogenesis of some diseases including neurological diseases. In the past two decades, a variety of studies have revealed that the necroptosis related pathway is activated in stroke, and plays a crucial role in the pathogenesis of stroke. Moreover, necroptosis may serve as a potential target in the therapy of stroke because genetic or pharmacological inhibition of necroptosis has been shown to be neuroprotective in stroke in vitro and in vivo. In this review, we briefly summarize re-cent advances in necroptosis, introduce the mechanism and strategies targeting necroptosis in stroke, and finally propose some issues in the treatment of stroke by targeting necroptosis
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Affiliation(s)
- Huang Jun-Long
- Department of Navy Aviation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China
| | - Li Yi
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Zhao Bao-Lian
- Department of Naval Clinical Medicine, Second Military Medical University, Shanghai 200433, China
| | - Li Jia-Si
- Department of Neurology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhang Ning
- Department of Navy Aviation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China
| | - Ye Zhou-Heng
- Department of Navy Aviation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China
| | - Sun Xue-Jun
- Department of Navy Aviation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China
| | - Liu Wen-Wu
- Department of Diving and Hyperbaric Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China
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Kim EH, Wong SW, Martinez J. Programmed Necrosis and Disease:We interrupt your regular programming to bring you necroinflammation. Cell Death Differ 2018; 26:25-40. [PMID: 30349078 DOI: 10.1038/s41418-018-0179-3] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/25/2018] [Accepted: 07/10/2018] [Indexed: 12/12/2022] Open
Abstract
Compared to the tidy and immunologically silent death during apoptosis, necrosis seems like a chaotic and unorganized demise. However, we now recognize that there is a method to its madness, as many forms of necrotic cell death are indeed programmed and function beyond lytic cell death to support homeostasis and immunity. Inherently more immunogenic than their apoptotic counterpart, programmed necrosis, such as necroptosis, pyroptosis, ferroptosis, and NETosis, releases inflammatory cytokines and danger-associated molecular patterns (DAMPs), skewing the milieu to a pro-inflammatory state. Moreover, impaired clearance of dead cells often leads to inflammation. Importantly, these pathways have all been implicated in inflammatory and autoimmune diseases, therefore careful understanding of their molecular mechanisms can have long lasting effects on how we interpret their role in disease and how we translate these mechanisms into therapy.
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Affiliation(s)
- Eui Ho Kim
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, 27709, USA
| | - Sing-Wai Wong
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, 27709, USA.,Oral and Craniofacial Biomedicine Curriculum, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jennifer Martinez
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, 27709, USA.
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66
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Heckmann BL, Tummers B, Green DR. Crashing the computer: apoptosis vs. necroptosis in neuroinflammation. Cell Death Differ 2018; 26:41-52. [PMID: 30341422 DOI: 10.1038/s41418-018-0195-3] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/07/2018] [Accepted: 08/10/2018] [Indexed: 12/20/2022] Open
Abstract
Programmed cell death (PCD) plays critical roles in development, homeostasis, and both control and progression of a plethora of diseases, including cancer and neurodegenerative pathologies. Besides classical apoptosis, several different forms of PCD have now been recognized, including necroptosis. The way a cell dies determines the reaction of the surrounding environment, and immune activation in response to cell death proceeds in a manner dependent on which death pathways are activated. Apoptosis and necroptosis are major mechanisms of cell death that typically result in opposing immune responses. Apoptotic death usually leads to immunologically silent responses whereas necroptotic death releases molecules that promote inflammation, a process referred to as necroinflammation. Diseases of the nervous system, in particular neurodegenerative diseases, are characterized by neuronal death and progressive neuroinflammation. The mechanisms of neuronal death are not well defined and significant cross-talk between pathways has been suggested. Moreover, it has been proposed that the dying of neurons is a catalyst for activating immune cells in the brain and sustaining inflammatory output. In the current review we discuss the effects of apoptotis and necroptosis on inflammatory immune activation, and evaluate the roles of each cell death pathway in a variety of pathologies with specific focus on neurodegeneration. A putative model is proposed for the regulation of neuronal death and neuroinflammation that features a role for both the apoptotic and necroptotic pathways in disease establishment and progression.
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Affiliation(s)
- Bradlee L Heckmann
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Bart Tummers
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Douglas R Green
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
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67
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Wagner AK, Kumar RG. TBI Rehabilomics Research: Conceptualizing a humoral triad for designing effective rehabilitation interventions. Neuropharmacology 2018; 145:133-144. [PMID: 30222984 DOI: 10.1016/j.neuropharm.2018.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/14/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022]
Abstract
Most areas of medicine use biomarkers in some capacity to aid in understanding how personal biology informs clinical care. This article draws upon the Rehabilomics research model as a translational framework for programs of precision rehabilitation and intervention research focused on linking personal biology to treatment response using biopsychosocial constructs that broadly represent function and that can be applied to many clinical populations with disability. The summary applies the Rehabilomics research framework to the population with traumatic brain injury (TBI) and emphasizes a broad vision for biomarker inclusion, beyond typical brain-derived biomarkers, to capture and/or reflect important neurological and non-neurological pathology associated with TBI as a chronic condition. Humoral signaling molecules are explored as important signaling and regulatory drivers of these chronic conditions and their impact on function. Importantly, secondary injury cascades involved in the humoral triad are influenced by the systemic response to TBI and the development of non-neurological organ dysfunction (NNOD). Biomarkers have been successfully leveraged in other medical fields to inform pre-randomization patient selection for clinical trials, however, this practice largely has not been utilized in TBI research. As such, the applicability of the Rehabilomics research model to contemporary clinical trials and comparative effectiveness research designs for neurological and rehabilitation populations is emphasized. Potential points of intervention to modify inflammation, hormonal, or neurotrophic support through rehabilitation interventions are discussed. This article is part of the Special Issue entitled "Novel Treatments for Traumatic Brain Injury".
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Affiliation(s)
- A K Wagner
- Department of Physical Medicine & Rehabilitation, University of Pittsburgh, USA; Safar Center for Resuscitation Research, University of Pittsburgh, USA; Department of Neuroscience, University of Pittsburgh, USA; Center for Neuroscience, University of Pittsburgh, USA.
| | - R G Kumar
- Department of Physical Medicine & Rehabilitation, University of Pittsburgh, USA; Safar Center for Resuscitation Research, University of Pittsburgh, USA; Department of Epidemiology, University of Pittsburgh, USA
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68
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Deficiency of receptor-interacting protein kinase 3 (RIPK3) attenuates inflammation and organ injury in neonatal sepsis. J Pediatr Surg 2018; 53:1699-1705. [PMID: 29248164 PMCID: PMC5966335 DOI: 10.1016/j.jpedsurg.2017.11.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/10/2017] [Accepted: 11/18/2017] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Sepsis is the third leading cause of morbidity and mortality in neonates. Sepsis in neonates is characterized as the systemic inflammation owing to infection within the first 28days after birth. The molecular mechanism causing the exaggerated inflammation phenotype in neonates has not been completely elucidated. Receptor interacting protein kinase 3 (RIPK3) is a protein identified as a mediator in programmed necrosis or necroptosis. We hypothesize that RIPK3 could be responsible for the inflammatory response in neonates and that deficiency in the RIPK3 protein attenuates inflammation and organ injury in neonatal sepsis. METHODS Male and female C57BL6 wild-type (WT) and RIPK3 knock-out (KO) newborn mice aged 5-7days (3-4g body weight) were injected intraperitoneally with 0.9mg/g cecal slurry (CS). At 10h after injection, the newborns were euthanized and blood, the lungs and gut tissues were collected. RESULTS At 10h after CS injection, serum cytokines IL-6 and IL-1β in the WT mice were increased by 511- and 43-fold whereas in KO mice, these levels were increased by 166-fold and 22-fold, respectively. Lung IL-1β in the WT mice increased by 7-fold after CS injection whereas only a 4-fold increase was seen in the KO mice. In the lungs of CS injected KO mice, the injury score, MIP-2 mRNA, myeloperoxidase (MPO) activity and TUNEL staining were significantly reduced by 76%, 70%, 26% and 74%, respectively compared to the CS WT mice. Gut TUNEL staining was also reduced by 80%. CONCLUSION The deficiency in RIPK3 attenuated serum and lung cytokines, lung injury and neutrophil infiltration and lung and gut apoptosis. These data suggest that RIPK3, in part, is responsible for the systemic inflammatory response in neonatal sepsis.
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69
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Ou X, Hua Y, Liao X, Gong C, Kang Y. Cognitive impairments induced by severe acute pancreatitis are attenuated by berberine treatment in rats. Mol Med Rep 2018; 18:3437-3444. [PMID: 30066867 DOI: 10.3892/mmr.2018.9313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 06/25/2018] [Indexed: 02/05/2023] Open
Abstract
Cognitive impairments induced by severe acute pancreatitis (SAP) are severe complications, for which there are a lack of effective pharmacological treatment strategies. Berberine is an isoquinoline alkaloid extracted from the Chinese herb, Coptis rhizome, which exhibits numerous biological effects on gastrointestinal disorders. However, the effects of berberine on SAP‑induced cognitive impairments remain unknown. The present study aimed to investigate the effects of berberine on cognitive impairments associated with SAP. Wistar rats were randomly divided into Sham, Sham + berberine, SAP and SAP + berberine groups. Rats were intraperitoneally injected with L‑arginine (3 g/kg) to induce SAP. Subsequently, selected rats were intragastrically administered berberine (100 mg/kg) once daily for 6 consecutive days. Disease severities of rats were investigated 48 h post‑induction of SAP via determination of serum amylase levels and hematoxylin and eosin staining. Survival rates, performance of behavioral tests (automated rotarod and fear conditioning tests), blood brain barrier (BBB) permeability, and the expression levels of tumor necrosis factor (TNF)‑α and interleukin (IL)‑1β in hippocampal tissues were also determined. Proteins associated with apoptosis and necroptosis in the hippocampal tissues of SAP rats, including caspase‑3, receptor‑interacting protein kinase (RIP)1 and RIP3, were detected via western blotting. The results revealed that treatment with L‑arginine induced SAP, which subsequently resulted in increased BBB permeability, mortality rates and cognitive deficits in rats. The expression levels of TNF‑α, IL‑1β, caspase‑3, RIP1 and RIP3 were significantly increased in the hippocampal tissues of SAP rats, thus suggesting that neuroinflammation, apoptosis and necroptosis may be involved in neurodegeneration associated with the development of SAP. Notably, administration of berberine protected the integrity of the BBB, decreased levels of brain inflammation and mortality rates, and attenuated increased levels of proteins associated with apoptosis and necroptosis and cognitive deficits associated with SAP in rats. The results of the present study demonstrated that daily treatment with berberine may attenuate cognitive deficits and reduce associated mortality via exhibition of anti‑neuroinflammatory effects and attenuation of neuronal apoptosis and necroptosis in the hippocampal tissues of SAP rats.
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Affiliation(s)
- Xiaofeng Ou
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yusi Hua
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xuelian Liao
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Cansheng Gong
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan Kang
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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70
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Zhang L, Wang H. Autophagy in Traumatic Brain Injury: A New Target for Therapeutic Intervention. Front Mol Neurosci 2018; 11:190. [PMID: 29922127 PMCID: PMC5996030 DOI: 10.3389/fnmol.2018.00190] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 05/15/2018] [Indexed: 11/23/2022] Open
Abstract
Traumatic brain injury (TBI) is one of the most devastating forms of brain injury. Many pathological mechanisms such as oxidative stress, apoptosis and inflammation all contribute to the secondary brain damage and poor outcomes of TBI. Current therapies are often ineffective and poorly tolerated, which drive the explore of new therapeutic targets for TBI. Autophagy is a highly conserved intracellular mechanism during evolution. It plays an important role in elimination abnormal intracellular proteins or organelles to maintain cell stability. Besides, autophagy has been researched in various models including TBI. Previous studies have deciphered that regulation of autophagy by different molecules and pathways could exhibit anti-oxidative stress, anti-apoptosis and anti-inflammation effects in TBI. Hence, autophagy is a promising target for further therapeutic development in TBI. The present review provides an overview of current knowledge about the mechanism of autophagy, the frequently used methods to monitor autophagy, the functions of autophagy in TBI as well as its potential molecular mechanisms based on the pharmacological regulation of autophagy.
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Affiliation(s)
- Li Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Handong Wang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
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Jackson TC, Dixon CE, Janesko-Feldman K, Vagni V, Kotermanski SE, Jackson EK, Kochanek PM. Acute Physiology and Neurologic Outcomes after Brain Injury in SCOP/PHLPP1 KO Mice. Sci Rep 2018; 8:7158. [PMID: 29739983 PMCID: PMC5940799 DOI: 10.1038/s41598-018-25371-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/20/2018] [Indexed: 11/12/2022] Open
Abstract
Suprachiasmatic nucleus circadian oscillatory protein (SCOP) (a.k.a. PHLPP1) regulates long-term memory consolidation in the brain. Using a mouse model of controlled cortical impact (CCI) we tested if (1) brain tissue levels of SCOP/PHLPP1 increase after a traumatic brain injury (TBI), and (2) if SCOP/PHLPP1 gene knockout (KO) mice have improved (or worse) neurologic outcomes. Blood chemistry (pH, pCO2, pO2, pSO2, base excess, sodium bicarbonate, and osmolarity) and arterial pressure (MAP) differed in isoflurane anesthetized WT vs. KOs at baseline and up to 1 h post-injury. CCI injury increased cortical/hippocampal SCOP/PHLPP1 levels in WTs 7d and 14d post-injury. Injured KOs had higher brain tissue levels of phosphorylated AKT (pAKT) in cortex (14d post-injury), and higher levels of phosphorylated MEK (pMEK) in hippocampus (7d and 14d post-injury) and in cortex (7d post-injury). Consistent with an important role of SCOP/PHLPP1 on memory function, injured-KOs had near normal performance on the probe trial of the Morris water maze, whereas injured-WTs were impaired. CA1/CA3 hippocampal survival was lower in KOs vs. WTs 24 h post-injury but equivalent by 7d. No difference in 21d cortical lesion volume was detected. SCOP/PHLPP1 overexpression in cultured rat cortical neurons had no effect on 24 h cell death after a mechanical stretch-injury.
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Affiliation(s)
- Travis C Jackson
- University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Children's Hospital of Pittsburgh of UPMC, John G. Rangos Research Center - 6th Floor 4401 Penn Avenue, Pittsburgh, PA, 15224, USA. .,University of Pittsburgh School of Medicine, Department of Critical Care Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, USA.
| | - C Edward Dixon
- University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Children's Hospital of Pittsburgh of UPMC, John G. Rangos Research Center - 6th Floor 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.,University of Pittsburgh School of Medicine, Department of Neurology, 811 Kaufmann Medical Building, 3471 Fifth Avenue, Pittsburgh, USA
| | - Keri Janesko-Feldman
- University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Children's Hospital of Pittsburgh of UPMC, John G. Rangos Research Center - 6th Floor 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.,University of Pittsburgh School of Medicine, Department of Critical Care Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, USA
| | - Vincent Vagni
- University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Children's Hospital of Pittsburgh of UPMC, John G. Rangos Research Center - 6th Floor 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.,University of Pittsburgh School of Medicine, Department of Critical Care Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, USA
| | - Shawn E Kotermanski
- University of Pittsburgh School of Medicine, Department of Pharmacology and Chemical Biology, Bridgeside Point Building 1, 100 Technology Drive, Pittsburgh, USA
| | - Edwin K Jackson
- University of Pittsburgh School of Medicine, Department of Pharmacology and Chemical Biology, Bridgeside Point Building 1, 100 Technology Drive, Pittsburgh, USA
| | - Patrick M Kochanek
- University of Pittsburgh School of Medicine, Safar Center for Resuscitation Research, Children's Hospital of Pittsburgh of UPMC, John G. Rangos Research Center - 6th Floor 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.,University of Pittsburgh School of Medicine, Department of Critical Care Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, USA
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72
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Liu S, Li Y, Choi HMC, Sarkar C, Koh EY, Wu J, Lipinski MM. Lysosomal damage after spinal cord injury causes accumulation of RIPK1 and RIPK3 proteins and potentiation of necroptosis. Cell Death Dis 2018; 9:476. [PMID: 29686269 PMCID: PMC5913300 DOI: 10.1038/s41419-018-0469-1] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/27/2018] [Accepted: 03/05/2018] [Indexed: 12/20/2022]
Abstract
Necroptosis, a regulated necrosis pathway mediated by the receptor-interacting protein kinases 1 and 3 (RIPK1 and RIPK3), is induced following spinal cord injury (SCI) and thought to contribute to neuronal and glial cell death. However, mechanisms leading to activation of necroptosis after SCI remain unclear. We have previously shown that autophagy, a catabolic pathway facilitating degradation of cytoplasmic proteins and organelles in a lysosome-dependent manner, is inhibited following SCI in rats. Our current data confirm that inhibition of autophagy also occurs after thoracic contusive SCI in the mouse model, as indicated by accumulation of both the autophagosome marker, LC3-II and autophagy cargo protein, p62/SQSTM1. This was most pronounced in the ventral horn neurons and was caused by rapid inhibition of lysosomal function after SCI. Interestingly, RIPK1, RIPK3, and the necroptosis effector protein MLKL also rapidly accumulated after SCI and localized to neurons with disrupted autophagy, suggesting that these events may be related. To determine if lysosomal dysfunction could contribute to induction of necroptosis, we treated PC12 cells and primary rat cortical neurons with lysosomal inhibitors. This led to rapid accumulation of RIPK1 and RIPK3, confirming that they are normally degraded by the lysosomal pathway. In PC12 cells lysosomal inhibition also sensitized cells to necroptosis induced by tumor necrosis factor α (TNFα) and caspase inhibitor. Imaging studies confirmed that RIPK1 partially localized to lysosomes in both untreated and lysosomal inhibitor treated cells. Similarly, we detected presence of RIPK1, RIPK3 and MLKL in both cytosol and at lysosomes after SCI in vivo. Furthermore, stimulation of autophagy and lysosomal function with rapamycin treatment led to decreased accumulation of RIPK1 and attenuated cell death after SCI. These data suggest that lysosomal dysfunction after SCI may contribute to both inhibition of autophagy and sensitize cells to necroptosis by promoting RIPK1 and RIPK3 accumulation.
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Affiliation(s)
- Shuo Liu
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA.,Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Yun Li
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA
| | - Harry M C Choi
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA
| | - Chinmoy Sarkar
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA
| | - Eugene Y Koh
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Junfang Wu
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Marta M Lipinski
- Department of Anesthesiology and the Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD, USA.
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73
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Ning Y, Shi Y, Chen J, Song N, Cai J, Fang Y, Yu X, Ji J, Ding X. Necrostatin-1 Attenuates Cisplatin-Induced Nephrotoxicity Through Suppression of Apoptosis and Oxidative Stress and Retains Klotho Expression. Front Pharmacol 2018; 9:384. [PMID: 29725301 PMCID: PMC5917042 DOI: 10.3389/fphar.2018.00384] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/04/2018] [Indexed: 01/16/2023] Open
Abstract
Aim: Cisplatin is an effective chemotherapeutic drug, but the application in clinical is greatly limited by its nephrotoxicity. Necrostatin-1 (Nec-1), an inhibitor of RIP1 kinase, has been reported to inhibit RIP-mediated necroptosis. The aim of this study is to detect the protective effects of Nec-1 on the nephrotoxicity of cisplatin and to investigate its renoprotection mechanism. Methods: 8-week-old male C57BL/6 mice were randomly assigned into four groups: Control, Nec-1, Cisplatin, and Cisplatin+Nec-1. Mice were treated with cisplatin with or without Nec-1 pre-treatment. Renal function, histological changes, necroptosis, and apoptotic markers were investigated. NFκB pathway related proteins, proinflammatory cytokines, oxidative stress markers, renal Klotho, and autophagy-related proteins levels were also examined. Results: Renal function and histological data displayed that the treatment with Nec-1 significantly attenuates cisplatin-induced renal damage. The expression of RIPK1/RIPK3/MLKL were significantly enhanced in cisplatin group as compared to the control group (p < 0.05) and was significantly reduced by pre-treatment of Nec-1 (p < 0.05). The level of stress and apoptosis-related protein, including p-JNK, p-c-Jun, p-p38, Bax/Bcl-2 ratio, and caspase-3 showed the similar trend. Pre-treatment with Nec-1 inhibit NFκB signaling, reduced proinflammatory cytokines and oxidative stress, up-regulated renal Klotho, and autophagy-related proteins levels. Conclusion: Our results suggest that Nec-1 could be a potential therapeutic drug against the cisplatin-induced nephrotoxicity through its anti-necroptosis, anti-apoptotic, anti-inflammatory anti-oxidant and retain Klotho expression and activate autophagy effects in the kidney.
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Affiliation(s)
- Yichun Ning
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Yiqin Shi
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Jing Chen
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Nana Song
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China
| | - Jieru Cai
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Xiaofang Yu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Jun Ji
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center for Kidney, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China
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74
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Fricker M, Tolkovsky AM, Borutaite V, Coleman M, Brown GC. Neuronal Cell Death. Physiol Rev 2018; 98:813-880. [PMID: 29488822 PMCID: PMC5966715 DOI: 10.1152/physrev.00011.2017] [Citation(s) in RCA: 673] [Impact Index Per Article: 112.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/23/2017] [Accepted: 07/10/2017] [Indexed: 02/07/2023] Open
Abstract
Neuronal cell death occurs extensively during development and pathology, where it is especially important because of the limited capacity of adult neurons to proliferate or be replaced. The concept of cell death used to be simple as there were just two or three types, so we just had to work out which type was involved in our particular pathology and then block it. However, we now know that there are at least a dozen ways for neurons to die, that blocking a particular mechanism of cell death may not prevent the cell from dying, and that non-neuronal cells also contribute to neuronal death. We review here the mechanisms of neuronal death by intrinsic and extrinsic apoptosis, oncosis, necroptosis, parthanatos, ferroptosis, sarmoptosis, autophagic cell death, autosis, autolysis, paraptosis, pyroptosis, phagoptosis, and mitochondrial permeability transition. We next explore the mechanisms of neuronal death during development, and those induced by axotomy, aberrant cell-cycle reentry, glutamate (excitoxicity and oxytosis), loss of connected neurons, aggregated proteins and the unfolded protein response, oxidants, inflammation, and microglia. We then reassess which forms of cell death occur in stroke and Alzheimer's disease, two of the most important pathologies involving neuronal cell death. We also discuss why it has been so difficult to pinpoint the type of neuronal death involved, if and why the mechanism of neuronal death matters, the molecular overlap and interplay between death subroutines, and the therapeutic implications of these multiple overlapping forms of neuronal death.
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Affiliation(s)
- Michael Fricker
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Aviva M Tolkovsky
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Vilmante Borutaite
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Michael Coleman
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Guy C Brown
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
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75
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Involvement of the autophagic pathway in the progression of AMD-like retinopathy in senescence-accelerated OXYS rats. Biogerontology 2018; 19:223-235. [PMID: 29492791 DOI: 10.1007/s10522-018-9751-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 02/24/2018] [Indexed: 12/31/2022]
Abstract
Age-related macular degeneration (AMD) is a complex neurodegenerative disease resulting in a loss of central vision in the elderly. It is currently assumed that impairment of autophagy may be one of the key mechanisms leading to AMD. Here we estimated the influence of age-related autophagy alterations in the retina on the development of AMD-like retinopathy in senescence-accelerated OXYS rats. Significant changes in the expression of the autophagy proteins were absent at the age preceding the development of retinopathy (age 20 days). We found increased levels of LC3A/B, Atg7, and Atg12-Atg5 conjugated proteins in the OXYS retina during manifestation of this retinopathy at the age of 3 months. By contrast, in the retina of 18-month-old OXYS rats with a progressive stage of retinopathy, we revealed significantly decreased protein levels of Atg7 and Atg12-Atg5 as compared to age-matched Wistar rats. Simultaneously with perturbation of the autophagic response, the necrosome subunits Ripk1 and Ripk3 were detected in the OXYS retina. The downregulation of autophagy markers coincided with amyloid β accumulation (Moab-2) in the retinal pigment epithelium and choroid. Using high-throughput RNA sequencing, we found a missense single-nucleotide polymorphism (SNP) in the Pik3c2b gene associated with autophagy regulation. This SNP was predicted to significantly affect protein structure. Our data prove participation of the autophagic pathway in the progression of AMD-like retinopathy.
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76
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Abstract
Necrosis is a hallmark of several widespread diseases or their direct complications. In the past decade, we learned that necrosis can be a regulated process that is potentially druggable. RIPK3- and MLKL-mediated necroptosis represents by far the best studied pathway of regulated necrosis. During necroptosis, the release of damage-associated molecular patterns (DAMPs) drives a phenomenon referred to as necroinflammation, a common consequence of necrosis. However, most studies of regulated necrosis investigated cell lines in vitro in a cell autonomous manner, which represents a non-physiological situation. Conclusions based on such work might not necessarily be transferrable to disease states in which synchronized, non-cell autonomous effects occur. Here, we summarize the current knowledge of the pathophysiological relevance of necroptosis in vivo, and in light of this understanding, we reassess the morphological classification of necrosis that is generally used by pathologists. Along these lines, we discuss the paucity of data implicating necroptosis in human disease. Finally, the in vivo relevance of non-necroptotic forms of necrosis, such as ferroptosis, is addressed.
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Affiliation(s)
- Wulf Tonnus
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Andreas Linkermann
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
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77
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Hofmans S, Devisscher L, Martens S, Van Rompaey D, Goossens K, Divert T, Nerinckx W, Takahashi N, De Winter H, Van Der Veken P, Goossens V, Vandenabeele P, Augustyns K. Tozasertib Analogues as Inhibitors of Necroptotic Cell Death. J Med Chem 2018; 61:1895-1920. [DOI: 10.1021/acs.jmedchem.7b01449] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sam Hofmans
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Lars Devisscher
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Sofie Martens
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Department of Biomedical Molecular Biology (DBMB), Ghent University, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
| | - Dries Van Rompaey
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Kenneth Goossens
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Tatyana Divert
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Department of Biomedical Molecular Biology (DBMB), Ghent University, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
| | - Wim Nerinckx
- Unit for Medical Biotechnology, Center for Medical Biotechnology, VIB, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, K.L.-Ledeganckstraat 35, Ghent 9000, Belgium
| | - Nozomi Takahashi
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Department of Biomedical Molecular Biology (DBMB), Ghent University, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
| | - Hans De Winter
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Pieter Van Der Veken
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
| | - Vera Goossens
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Department of Biomedical Molecular Biology (DBMB), Ghent University, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
| | - Peter Vandenabeele
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Department of Biomedical Molecular Biology (DBMB), Ghent University, Technologiepark 927, Zwijnaarde-Ghent 9052, Belgium
- Methusalem Program, Ghent University, Ghent 9000, Belgium
| | - Koen Augustyns
- Laboratory of Medicinal Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk-Antwerp 2610, Belgium
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78
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Cylindromatosis mediates neuronal cell death in vitro and in vivo. Cell Death Differ 2018; 25:1394-1407. [PMID: 29352268 PMCID: PMC6113218 DOI: 10.1038/s41418-017-0046-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 09/18/2017] [Accepted: 11/13/2017] [Indexed: 01/03/2023] Open
Abstract
The tumor-suppressor cylindromatosis (CYLD) is a deubiquitinating enzyme and key regulator of cell proliferation and inflammation. A genome-wide siRNA screen linked CYLD to receptor interacting protein-1 (RIP1) kinase-mediated necroptosis; however, the exact mechanisms of CYLD-mediated cell death remain unknown. Therefore, we investigated the precise role of CYLD in models of neuronal cell death in vitro and evaluated whether CYLD deletion affects brain injury in vivo. In vitro, downregulation of CYLD increased RIP1 ubiquitination, prevented RIP1/RIP3 complex formation, and protected neuronal cells from oxidative death. Similar protective effects were achieved by siRNA silencing of RIP1 or RIP3 or by pharmacological inhibition of RIP1 with necrostatin-1. In vivo, CYLD knockout mice were protected from trauma-induced brain damage compared to wild-type littermate controls. These findings unravel the mechanisms of CYLD-mediated cell death signaling in damaged neurons in vitro and suggest a cell death-mediating role of CYLD in vivo.
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79
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Abstract
Baicalin, a plant-derived flavonoid, has been reported to exert neuroprotective effects on ischemia-like or excitotoxic injury. To confirm this function and explore the possible mechanism, we investigated the protective effect of baicalin on an in-vitro model of ischemia (oxygen-glucose deprivation-treated endothelial cell). In the present study, we found that baicalin (100 μM) inhibited cell death, reduced cell membrane damage, and maintained the integrity of the nucleus. Flow cytometric analysis and Hoechst 33258/propidium iodide double staining results showed that the necroptosis ratio decreased with baicalin treatment. Western blot analysis showed that baicalin regulated the expression of RIP-1 and RIP-3 in bEnd.3 cells and the use of detection kits showed that baicalin inhibited the production of reactive oxygen species and malondialdehyde, and increased the activity of superoxide dismutase in oxygen-glucose deprivation-treated bEnd.3 cells. These results indicated that baicalin effectively alleviated the oxidative stress, decreased the proportion of cells undergoing necrosis, and reduced cell damage.
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80
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Hernández DE, Salvadores NA, Moya-Alvarado G, Catalán RJ, Bronfman FC, Court FA. Axonal degeneration induced by glutamate-excitotoxicity is mediated by necroptosis. J Cell Sci 2018; 131:jcs.214684. [DOI: 10.1242/jcs.214684] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 10/05/2018] [Indexed: 12/27/2022] Open
Abstract
Neuronal excitotoxicity induced by glutamate leads to cell death and functional impairment in a variety of central nervous system pathologies. Glutamate-mediated excitotoxicity triggers neuronal apoptosis in the cell soma as well as degeneration of axons and dendrites by a process associated to calcium increase and mitochondrial dysfunction. Importantly, degeneration of axons initiated by diverse stimuli, including excitotoxicity, has been proposed as an important pathological event leading to functional impairment in neurodegenerative conditions. Here we demonstrate that excitotoxicity-induced axonal degeneration proceeds by a mechanism dependent on the necroptotic kinases RIPK1, RIPK3 and the necroptotic mediator MLKL. Inhibition of RIPK1, RIPK3 or MLKL prevent key steps in the axonal degeneration cascade including mitochondrial depolarization, the opening of the permeability transition pore and calcium dysregulation in the axon. Interestingly, the same excitotoxic stimuli lead to apoptosis in the cell soma, demonstrating the co-activation of two independent degenerative mechanisms in different compartments of the same cell. The identification of necroptosis as a key mechanism of axonal degeneration after excitotoxicity is an important initial step to develop novel therapeutic strategies for nervous system disorders.
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Affiliation(s)
- Diego E. Hernández
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Chile
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
- Center of Advanced Microscopy (CMA), Universidad de Concepción, Concepción, Chile
| | - Natalia A. Salvadores
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Chile
- FONDAP Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Guillermo Moya-Alvarado
- Center for Ageing and Regeneration (CARE UC), Faculty of Biological Sciences, Department of Physiology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Romina J. Catalán
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Chile
- FONDAP Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Francisca C. Bronfman
- Center for Ageing and Regeneration (CARE UC), Faculty of Biological Sciences, Department of Physiology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe A. Court
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Chile
- FONDAP Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
- Buck Institute for Research on Ageing, Novato, San Francisco, USA
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81
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Su X, Wang H, Lin Y, Chen F. RIP1 and RIP3 mediate hemin-induced cell death in HT22 hippocampal neuronal cells. Neuropsychiatr Dis Treat 2018; 14:3111-3119. [PMID: 30532542 PMCID: PMC6247969 DOI: 10.2147/ndt.s181074] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Intracerebral hemorrhage (ICH) is a devastating neurological injury associated with significant mortality. Necroptosis is a newly identified type of programmed necrosis initiated by the activation of tumor necrosis factor alpha. Evidences had demonstrated the importance of necroptosis in neuronal cell death. Necrostatin-1 is a specific inhibitor of necroptosis. The present study was carried out to explore whether RIP1/RIP3 pathways participate in hemin induced cell death in HT-22 hippocampal neuronal cells and investigate the potential neuroprotection of necrostatin-1 in hemin induced cell death in HT-22. METHODS First, different concentrations of hemin (0, 25, 50, 100 μmol/L) were added to HT-22 cells. Propidium iodide (PI) positive cells and cell viability were measured at 24 hours after hemin treatment. Then, necrostatin-1, pan-caspase inhibitor Benzyloxycarbonyl-Val-Ala-Asp(OMe)-fluoromethylketone (z-VAD-fmk) and reactive oxygen species (ROS) scavenger butylated hydroxyanisole (BHA) were applied to hemin-treated HT-22 cells. PI positive cells and cell viability were measured at 24 hours after hemin treatment. MitoSox Red was used to indicate ROS level. Last, the effect of RIP3 in hemin induced HT-22 cell death was explored through RIP3 knockdown using siRNA. PI positive cells, cell viability and ROS lever were measured at 24 h after hemin treatment. RESULTS Hemin could induce a dose dependent cell death in HT22 neural cells. RIP1 specific inhibitor necrostatin-1 significantly inhibited cell death induced by hemin in HT-22 cells, greatly reducing PI positive cells, dramatically improving cell viability and decreasing ROS accumulation. BHA could significantly inhibit PI positive cells induced by hemin in HT-22 cells. Furthermore, silencing of RIP3 using siRNA attenuated hemin induced cell death in HT-22 cells, greatly reducing PI positive cells, dramatically improving cell viability and decreasing ROS accumulation. CONCLUSION These data revealed that RIP1/RIP3 might mediate hemin induced cell death in HT-22 cells, and necrostatin-1 played a neuroprotection role in hemin induced cell death in HT-22. RIP1 and RIP3 might represent novel therapeutic targets for ICH.
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Affiliation(s)
- Xingfen Su
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian, People's Republic of China,
| | - Handong Wang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, People's Republic of China
| | - Yuanxiang Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian, People's Republic of China,
| | - Fuxiang Chen
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian, People's Republic of China,
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82
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Liu C, Zhang K, Shen H, Yao X, Sun Q, Chen G. Necroptosis: A novel manner of cell death, associated with stroke (Review). Int J Mol Med 2017; 41:624-630. [PMID: 29207014 DOI: 10.3892/ijmm.2017.3279] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 10/24/2017] [Indexed: 11/06/2022] Open
Abstract
Cell death is indispensable in the physiology, pathology, growth, development, senility and death of an organism. In recent years, the identification of a highly regulated form of necrosis, known as necroptosis, has challenged the traditional concept of necrosis and apoptosis, which are two major modes of cell death. This novel manner of cell death is similar in form to necrosis in terms of morphological features, and it can also be regulated in a caspase‑independent manner. Therefore, necroptosis can be understood initially as a combination of necrosis and apoptosis. The mechanism of its regulation, induction and inhibition is complicated, and involves a range of molecular expression and regulation. According to the recent literature, necroptosis takes place in the physiological regulatory processes of an organism and is involved in the occurrence, development and prognosis of a variety of diseases that have a necrosis phenotype, including neurodegenerative diseases, ischemic disease, hemorrhagic disease, inflammation and viral infectious diseases. In the present review, the features, molecular mechanism and identification of necroptosis under pathological conditions are discussed, with particular emphasis on its association with stroke.
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Affiliation(s)
- Chenglin Liu
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Kai Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Haitao Shen
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Xiyang Yao
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Qing Sun
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Gang Chen
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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83
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Fuchslocher Chico J, Saggau C, Adam D. Proteolytic control of regulated necrosis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:2147-2161. [DOI: 10.1016/j.bbamcr.2017.05.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/27/2017] [Accepted: 05/30/2017] [Indexed: 12/20/2022]
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84
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FGF2 Attenuates Neural Cell Death via Suppressing Autophagy after Rat Mild Traumatic Brain Injury. Stem Cells Int 2017; 2017:2923182. [PMID: 29181034 PMCID: PMC5664312 DOI: 10.1155/2017/2923182] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/26/2017] [Accepted: 09/11/2017] [Indexed: 12/19/2022] Open
Abstract
Traumatic brain injury (TBI) can lead to physical and cognitive deficits, which are caused by the secondary injury process. Effective pharmacotherapies for TBI patients are still lacking. Fibroblast growth factor-2 (FGF2) is an important neurotrophic factor that can stimulate neurogenesis and angiogenesis and has been shown to have neuroprotective effects after brain insults. Previous studies indicated that FGF2's neuroprotective effects might be related to its function of regulating autophagy. The present study investigated FGF2's beneficial effects in the early stage of rat mild TBI and the underlying mechanisms. One hundred and forty-four rats were used for creating controlled cortical impact (CCI) models to simulate the pathological damage after TBI. Our results indicated that pretreatment of FGF2 played a neuroprotective role in the early stage of rat mild TBI through alleviating brain edema, reducing neurological deficits, preventing tissue loss, and increasing the number of surviving neurons in injured cortex and the ipsilateral hippocampus. FGF2 could also protect cells from various forms of death such as apoptosis or necrosis through inhibition of autophagy. Finally, autophagy activator rapamycin could abolish the protective effects of FGF2. This study extended our understanding of FGF2's neuroprotective effects and shed lights on the pharmacological therapy after TBI.
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85
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Wang S, Wu J, Zeng YZ, Wu SS, Deng GR, Chen ZD, Lin B. Necrostatin-1 Mitigates Endoplasmic Reticulum Stress After Spinal Cord Injury. Neurochem Res 2017; 42:3548-3558. [PMID: 28932945 DOI: 10.1007/s11064-017-2402-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 08/09/2017] [Accepted: 09/11/2017] [Indexed: 12/28/2022]
Abstract
Necrostatin-1 (Nec-1) has been shown to inhibit necroptosis and convey a significant protective effect after spinal cord injury (SCI). This small molecule inhibitor may reduce tissue damage and restore neurological function by lessening mitochondrial injury after SCI and preserving energy homeostasis. However, the effects of Nec-1 on endoplasmic reticulum stress (ERS)-an important pathological consequence of SCI-are still not clear. The present study investigates the relationship between necroptosis and ERS in a rat model of SCI. Electron microscopy was employed to observe ultra-structural changes in the endoplasmic reticulum and mitochondria after lesioning. Real-time quantitative PCR was used to measure the mRNA levels of ERS-related pro-apoptotic molecules such as C/EBP homologous protein (CHOP), immunoglobulin-binding protein (BiP/GRP78) and X box-binding protein-1 (XBP-1). Western blot and immunofluorescence were conducted to analyze CHOP, GRP78 and XBP-1 protein expression after lesioning. Results demonstrated that applying Nec-1 in SCI reduces ultra-structural damage to the endoplasmic reticulum and mitochondria and inhibits expression of ERS-related genes and proteins after lesioning. Immunofluorescence also shows ERS-related proteins mainly expressed in the cytoplasm of nerve cells. Taken together, these results demonstrate that Nec-1 has protective effect on the endoplasmic reticulum and mitochondria and alleviates ERS after SCI.
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Affiliation(s)
- Shuang Wang
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China
| | - Jin Wu
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China
| | - Yu-Zhe Zeng
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China
| | - Song-Song Wu
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China
| | - Guo-Rong Deng
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, 361003, Fujian, China
| | - Zhi-Da Chen
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China
| | - Bin Lin
- Department of Orthopaedics, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, China.
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86
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Zhou K, Shi L, Wang Z, Zhou J, Manaenko A, Reis C, Chen S, Zhang J. RIP1-RIP3-DRP1 pathway regulates NLRP3 inflammasome activation following subarachnoid hemorrhage. Exp Neurol 2017; 295:116-124. [PMID: 28579326 DOI: 10.1016/j.expneurol.2017.06.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/21/2017] [Accepted: 06/01/2017] [Indexed: 12/30/2022]
Abstract
The NLRP3 inflammasome functions as a crucial component of the inflammatory response in early brain injury (EBI) after subarachnoid hemorrhage (SAH). However, the mechanisms underlying the activation of NLRP3 inflammasome has not been well elucidated. In this study, we hypothesized the RIP1-RIP3-DRP1 pathway was involved in the activation of the NLRP3 inflammasome following SAH. SAH was induced by endovascular perforation in rats. Necrostatin-1 (Nec-1) or mitochondrial division inhibitor (Mdivi-1) was administered 1h after SAH by intraperitoneal injection. SAH grade, neurological function, brain water content, Western blot, ROS assay, immunofluorescence and transmission electron microscopy were performed. SAH led to the upregulation of RIP1, RIP3, phosphorylated DRP1 and NLRP3 inflammasome. Nec-1 treatment reduced RIP1, RIP3, phosphorylated DRP1 and NLRP3 inflammasome, subsequently alleviated brain edema and neurological deficits at 24h following SAH. The treatment with Mdivi-1 inhibited the expression of DRP1 protein, attenuated mitochondria damage and the generation of ROS, inhibited NLRP3 inflammasome and ameliorated brain edema and neurological deficits at 24h after SAH. The activation of the NLRP3 inflammasome in EBI after SAH was mediated by RIP1-RIP3-DRP1 pathway. Nec-1 and Mdivi-1 can inhibit inflammation and improve neurological function after SAH.
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Affiliation(s)
- Keren Zhou
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ligen Shi
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhen Wang
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jingyi Zhou
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Anatol Manaenko
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Cesar Reis
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
| | - Sheng Chen
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Jianmin Zhang
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Brain research institute, Zhejiang University, Hangzhou, Zhejiang, China; Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China.
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87
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Thornton C, Leaw B, Mallard C, Nair S, Jinnai M, Hagberg H. Cell Death in the Developing Brain after Hypoxia-Ischemia. Front Cell Neurosci 2017; 11:248. [PMID: 28878624 PMCID: PMC5572386 DOI: 10.3389/fncel.2017.00248] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/07/2017] [Indexed: 01/11/2023] Open
Abstract
Perinatal insults such as hypoxia–ischemia induces secondary brain injury. In order to develop the next generation of neuroprotective therapies, we urgently need to understand the underlying molecular mechanisms leading to cell death. The cell death mechanisms have been shown to be quite different in the developing brain compared to that in the adult. The aim of this review is update on what cell death mechanisms that are operating particularly in the setting of the developing CNS. In response to mild stress stimuli a number of compensatory mechanisms will be activated, most often leading to cell survival. Moderate-to-severe insults trigger regulated cell death. Depending on several factors such as the metabolic situation, cell type, nature of the stress stimulus, and which intracellular organelle(s) are affected, the cell undergoes apoptosis (caspase activation) triggered by BAX dependent mitochondrial permeabilzation, necroptosis (mixed lineage kinase domain-like activation), necrosis (via opening of the mitochondrial permeability transition pore), autophagic cell death (autophagy/Na+, K+-ATPase), or parthanatos (poly(ADP-ribose) polymerase 1, apoptosis-inducing factor). Severe insults cause accidental cell death that cannot be modulated genetically or by pharmacologic means. However, accidental cell death leads to the release of factors (damage-associated molecular patterns) that initiate systemic effects, as well as inflammation and (regulated) secondary brain injury in neighboring tissue. Furthermore, if one mode of cell death is inhibited, another route may step in at least in a scenario when upstream damaging factors predominate over protective responses. The provision of alternative routes through which the cell undergoes death has to be taken into account in the hunt for novel brain protective strategies.
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Affiliation(s)
- Claire Thornton
- Division of Imaging Sciences and Biomedical Engineering, Centre for the Developing Brain, King's College London, King's Health Partners, St. Thomas' HospitalLondon, United Kingdom
| | - Bryan Leaw
- The Ritchie Centre, Hudson Institute of Medical ResearchClayton, VIC, Australia
| | - Carina Mallard
- Department of Physiology, Perinatal Center, Institute of Physiology and Neuroscience, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Syam Nair
- Department of Physiology, Perinatal Center, Institute of Physiology and Neuroscience, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Masako Jinnai
- Department of Physiology, Perinatal Center, Institute of Physiology and Neuroscience, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Henrik Hagberg
- Division of Imaging Sciences and Biomedical Engineering, Centre for the Developing Brain, King's College London, King's Health Partners, St. Thomas' HospitalLondon, United Kingdom.,Department of Clinical Sciences and Physiology and Neuroscience, Perinatal Center, Sahlgrenska Academy, Gothenburg UniversityGothenburg, Sweden
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88
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Lule S, Wu L, McAllister LM, Edmiston WJ, Chung JY, Levy E, Zheng Y, Gough PJ, Bertin J, Degterev A, Lo EH, Whalen MJ. Genetic Inhibition of Receptor Interacting Protein Kinase-1 Reduces Cell Death and Improves Functional Outcome After Intracerebral Hemorrhage in Mice. Stroke 2017; 48:2549-2556. [PMID: 28765287 DOI: 10.1161/strokeaha.117.017702] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/03/2017] [Accepted: 07/10/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND PURPOSE Recent studies using cultured cells and rodent intracerebral hemorrhage (ICH) models have implicated RIPK1 (receptor interacting protein kinase-1) as a driver of programmed necrosis and secondary injury based on use of chemical inhibitors. However, these inhibitors have off-target effects and cannot be used alone to prove a role for RIPK1. The aim of the current study was to examine the effect of genetic inhibition of the kinase domain of RIPK1 in a mouse ICH model. METHODS We subjected 2 lines of mice with RIPK1 point mutations of the kinase domain (K45A and D138N), rendering them kinase inactive, to autologous blood ICH and measured acute cell death and functional outcome. RESULTS Compared with wild-type controls, RIPK1K45A/K45A and RIPK1D138N/D138N had significantly less cells with plasmalemma permeability, less acute neuronal cell death, less weight loss and more rapid weight gain to baseline, and improved performance in a Morris water maze paradigm after autologous blood ICH. In addition, mice systemically administered GSK'963, a potent, specific, brain penetrant small molecule RIPK1 inhibitor, had reduced acute neuronal death at 24 hours after ICH. CONCLUSIONS The data show that the kinase domain of RIPK1 is a disease driver of ICH, mediating both acute cell death and functional outcome, and support development of RIPK1 inhibitors as therapeutic agents for human ICH.
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Affiliation(s)
- Sevda Lule
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Limin Wu
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Lauren M McAllister
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - William J Edmiston
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Joon Yong Chung
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Emily Levy
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Yi Zheng
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Peter J Gough
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - John Bertin
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Alexei Degterev
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Eng H Lo
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.)
| | - Michael J Whalen
- From the Neuroscience Center and Department of Pediatrics (S.L., L.W., L.M.M., W.J.E., J.Y.C., E.L., M.J.W.), Radiology (Y.Z., E.H.L.), and Department of Neurology (E.H.L.), Massachusetts General Hospital and Harvard Medical School, Charlestown; Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA (P.J.G., J.B.); and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA (A.D.).
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Dong K, Han L, Liu J, Wang F, Sun X. RNA Interference Reveals the Coregulatory Effects of Cylindromatosis on Apoptosis and Necroptosis of Photoreceptor Cells in Experimental Retinal Detachment. THE AMERICAN JOURNAL OF PATHOLOGY 2017. [DOI: 10.1016/j.ajpath.2017.04.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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90
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Yang XS, Yi TL, Zhang S, Xu ZW, Yu ZQ, Sun HT, Yang C, Tu Y, Cheng SX. Hypoxia-inducible factor-1 alpha is involved in RIP-induced necroptosis caused by in vitro and in vivo ischemic brain injury. Sci Rep 2017; 7:5818. [PMID: 28724891 PMCID: PMC5517428 DOI: 10.1038/s41598-017-06088-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/07/2017] [Indexed: 12/22/2022] Open
Abstract
Necroptosis, a novel type of programmed cell death, is involved in stroke-induced ischemic brain injury. Although studies have sought to explore the mechanisms of necroptosis, its signaling pathway has not yet to be completely elucidated. Thus, we used oxygen-glucose deprivation (OGD) and middle cerebral artery occlusion (MCAO) models mimicking ischemic stroke (IS) conditions to investigate mechanisms of necroptosis. We found that OGD and MCAO induced cell death, local brain ischemia and neurological deficit, while zVAD-fmk (zVAD, an apoptotic inhibitor), GSK’872 (a receptor interacting protein kinase-3 (RIP3) inhibitor), and combined treatment alleviated cell death and ischemic brain injury. Moreover, OGD and MCAO upregulated protein expression of the triggers of necroptosis: receptor interacting protein kinase-1 (RIP1), RIP3 and mixed lineage kinase domain-like protein (MLKL). The upregulation of these proteins was inhibited by GSK’872, combination treatments and RIP3 siRNA but not zVAD treatment. Intriguingly, hypoxia-inducible factor-1 alpha (HIF-1α), an important transcriptional factor under hypoxic conditions, was upregulated by OGD and MCAO. Similar to their inhibitory effects on aforementioned proteins upregulation, GSK’872, combination treatments and RIP3 siRNA decreased HIF-1α protein level. These findings indicate that necroptosis contributes to ischemic brain injury induced by OGD and MCAO and implicate HIF-1α, RIP1, RIP3, and MLKL in necroptosis.
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Affiliation(s)
- Xiao-Sa Yang
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Tai-Long Yi
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Sai Zhang
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Zhong-Wei Xu
- Central Laboratory of Logistics University of PAP, No. 1 Huizhi Huan Road, DongLi District, Tianjin, 300393, China
| | - Ze-Qi Yu
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Hong-Tao Sun
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Cheng Yang
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China
| | - Yue Tu
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China.
| | - Shi-Xiang Cheng
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience, Center for Neurology and Neurosurgery of Affiliated Hospital of the Logistics University of Chinese People's Armed Police Force (PAP), No. 220 ChengLin Road, HeDong District, Tianjin, 300162, China.
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91
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Moreno-Gonzalez G, Vandenabeele P, Krysko DV. Necroptosis: A Novel Cell Death Modality and Its Potential Relevance for Critical Care Medicine. Am J Respir Crit Care Med 2017; 194:415-28. [PMID: 27285640 DOI: 10.1164/rccm.201510-2106ci] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cell death is intertwined with life in development, homeostasis, pathology, and aging. Until recently, apoptosis was the best known form of programmed cell death, whereas necrosis was for a long time considered accidental owing to physicochemical injury. However, identification of crucial signaling and execution molecules, which are highly regulated, revealed that necrosis encompasses several cell death modalities that can be therapeutically targeted. The best understood form of regulated necrosis is necroptosis, which is transduced by the kinase activities of receptor interacting protein kinase-1 and receptor interacting protein kinase-3, eventually leading to the activation of mixed lineage kinase domain-like and plasma membrane permeabilization. We are only beginning to appreciate the role of necroptosis in different pathological conditions, including critical illnesses. In this review, we discuss the molecular mechanisms of necroptosis and analyze the effect of inhibiting necroptosis in experimental models of critical illnesses. In view of the identification of an increasing number of cell death modalities, we also briefly discuss the simultaneous targeting of multiple cell death modalities because, depending on the cell type and cellular conditions, various types of cell death may contribute to the pathology.
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Affiliation(s)
- Gabriel Moreno-Gonzalez
- 1 Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium.,2 Department of Biomedical Molecular Biology, and.,3 Intensive Care Unit, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Peter Vandenabeele
- 1 Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium.,2 Department of Biomedical Molecular Biology, and.,4 Methusalem Program, Ghent University, Ghent, Belgium; and
| | - Dmitri V Krysko
- 1 Molecular Signaling and Cell Death Unit, VIB Inflammation Research Center, Ghent, Belgium.,2 Department of Biomedical Molecular Biology, and
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92
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Necroptosis in neurodegenerative diseases: a potential therapeutic target. Cell Death Dis 2017; 8:e2905. [PMID: 28661482 PMCID: PMC5520937 DOI: 10.1038/cddis.2017.286] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/13/2017] [Accepted: 05/17/2017] [Indexed: 02/08/2023]
Abstract
Neurodegenerative diseases are a group of chronic progressive disorders characterized by neuronal loss. Necroptosis, a recently discovered form of programmed cell death, is a cell death mechanism that has necrosis-like morphological characteristics. Necroptosis activation relies on the receptor-interacting protein (RIP) homology interaction motif (RHIM). A variety of RHIM-containing proteins transduce necroptotic signals from the cell trigger to the cell death mediators RIP3 and mixed lineage kinase domain-like protein (MLKL). RIP1 plays a particularly important and complex role in necroptotic cell death regulation ranging from cell death activation to inhibition, and these functions are often cell type and context dependent. Increasing evidence suggests that necroptosis plays an important role in the pathogenesis of neurodegenerative diseases. Moreover, small molecules such as necrostatin-1 are thought inhibit necroptotic signaling pathway. Understanding the precise mechanisms underlying necroptosis and its interactions with other cell death pathways in neurodegenerative diseases could provide significant therapeutic insights. The present review is aimed at summarizing the molecular mechanisms of necroptosis and highlighting the emerging evidence on necroptosis as a major driver of neuron cell death in neurodegenerative diseases.
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Nikseresht S, Khodagholi F, Dargahi L, Ahmadiani A. Necroptosis Resumes Apoptosis in Hippocampus but Not in Frontal Cortex. J Cell Biochem 2017; 118:4628-4638. [DOI: 10.1002/jcb.26127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 05/08/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Sara Nikseresht
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Fariba Khodagholi
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Leila Dargahi
- Neurobiology Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Abolhassan Ahmadiani
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
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Yang R, Hu K, Chen J, Zhu S, Li L, Lu H, Li P, Dong R. Necrostatin-1 protects hippocampal neurons against ischemia/reperfusion injury via the RIP3/DAXX signaling pathway in rats. Neurosci Lett 2017; 651:207-215. [PMID: 28501693 DOI: 10.1016/j.neulet.2017.05.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/16/2017] [Accepted: 05/08/2017] [Indexed: 12/21/2022]
Abstract
Global cerebral ischemia/reperfusion (I/R) induces selective neuronal injury in CA1 region of hippocampus, leading to severe impairment in behavior, learning and memory functions. However, the molecular mechanism underlying the processes was not elucidated clearly. RIP3 is a key molecular switch connecting apoptosis, necrosis and necroptosis. DAXX, as a novel substrate of RIP3, plays a vital role in ischemia-induced neuronal death. The aim of this study is to investigate the role and mechanism of RIP3/DAXX signaling pathway on neurons in CA1 region of the rat hippocampus after cerebral I/R. Global cerebral ischemia was induced by the method of four-vessel occlusion. RIP1 specific inhibitor Necrostatin-1 was administered by intracerebroventricular injection 1h before ischemia. Open-field, closed-field, and Morris water maze tests were performed respectively to examine the anxiety and cognitive behavior in each group. Hematoxylin and eosinstaining was used to examine the survival of hippocampal CA1 pyramidal neurons. Western blot or immunoprecipitation were carried to detect protein expression, phosphorylation, and interaction. We found that pre-treatment with Nec-1 protected locomotive ability, relieved anxiety behavior, and improved cognitive ability in the rats subjected to cerebral I/R. In addition Moreover, Nec-1 decreased significantly the dead rate of neurons in hippocampal CA1 region after cerebral I/R through suppressing RIP1-RIP3 interaction and RIP3 activation along with RIP3-DAXX interaction, and then blocked DAXX translocation from nucleaus to cytoplasm, which resulted in the inactiviation of DAXX. We concluded that pre-treatment with Nec-1 can protect neurons in the hippocampal CA1 region against ischemic damage through the RIP3-DAXX signaling pathway.
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Affiliation(s)
- Rongli Yang
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Kun Hu
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Jieyun Chen
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Shiguang Zhu
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Lei Li
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Hailong Lu
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Pingjing Li
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China
| | - Ruiguo Dong
- Department of Neurology, Affiliated Hospital of Xuzhou Medical University, 99 West Huai-hai Road, Xuzhou, Jiangsu 221002, PR China.
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95
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Glushakova OY, Glushakov AA, Wijesinghe DS, Valadka AB, Hayes RL, Glushakov AV. Prospective clinical biomarkers of caspase-mediated apoptosis associated with neuronal and neurovascular damage following stroke and other severe brain injuries: Implications for chronic neurodegeneration. Brain Circ 2017; 3:87-108. [PMID: 30276309 PMCID: PMC6126261 DOI: 10.4103/bc.bc_27_16] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 04/10/2017] [Accepted: 04/17/2017] [Indexed: 12/11/2022] Open
Abstract
Acute brain injuries, including ischemic and hemorrhagic stroke, as well as traumatic brain injury (TBI), are major worldwide health concerns with very limited options for effective diagnosis and treatment. Stroke and TBI pose an increased risk for the development of chronic neurodegenerative diseases, notably chronic traumatic encephalopathy, Alzheimer's disease, and Parkinson's disease. The existence of premorbid neurodegenerative diseases can exacerbate the severity and prognosis of acute brain injuries. Apoptosis involving caspase-3 is one of the most common mechanisms involved in the etiopathology of both acute and chronic neurological and neurodegenerative diseases, suggesting a relationship between these disorders. Over the past two decades, several clinical biomarkers of apoptosis have been identified in cerebrospinal fluid and peripheral blood following ischemic stroke, intracerebral and subarachnoid hemorrhage, and TBI. These biomarkers include selected caspases, notably caspase-3 and its specific cleavage products such as caspase-cleaved cytokeratin-18, caspase-cleaved tau, and a caspase-specific 120 kDa αII-spectrin breakdown product. The levels of these biomarkers might be a valuable tool for the identification of pathological pathways such as apoptosis and inflammation involved in injury progression, assessment of injury severity, and prediction of clinical outcomes. This review focuses on clinical studies involving biomarkers of caspase-3-mediated pathways, following stroke and TBI. The review further examines their prospective diagnostic utility, as well as clinical utility for improved personalized treatment of stroke and TBI patients and the development of prophylactic treatment chronic neurodegenerative disease.
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Affiliation(s)
- Olena Y Glushakova
- Department of Neurosurgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Andriy A Glushakov
- Department of Neurosurgery, University of South Florida College of Medicine, Tampa, FL, USA
| | - Dayanjan S Wijesinghe
- Department of Pharmacotherapy and Outcomes Sciences, Laboratory of Pharmacometabolomics and Companion Diagnostics, Virginia Commonwealth University, Richmond, VA, USA
| | - Alex B Valadka
- Department of Neurosurgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Ronald L Hayes
- Department of Neurosurgery, Virginia Commonwealth University, Richmond, VA, USA
- Banyan Biomarkers, Inc., Alachua, 32615, USA
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96
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Arora D, Sharma PK, Siddiqui MH, Shukla Y. Necroptosis: Modules and molecular switches with therapeutic implications. Biochimie 2017; 137:35-45. [PMID: 28263777 DOI: 10.1016/j.biochi.2017.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/07/2017] [Accepted: 02/27/2017] [Indexed: 12/24/2022]
Abstract
Among the various programmed cell death (PCD) pathways, "Necroptosis" has gained much importance as a novel paradigm of cell death. This pathway has emerged as a backup mechanism when physiologically conserved PCD (apoptosis) is non-functional either genetically or pathogenically. The expanding spectrum of necroptosis from physiological development to diverse patho-physiological disorders, including xenobiotics-mediated toxicity has now grabbed the attention worldwide. The efficient role of necroptosis regulators in disease development and management are under constant examination. In fact, few regulators (e.g. MLKL) have already paved their way towards clinical trials and others are in queue. In this review, emphasis has been paid to the various contributing factors and molecular switches that can regulate necroptosis. Here we linked the overview of current knowledge of this enigmatic signaling with magnitude of therapeutics that may underpin the opportunities for novel therapeutic approaches to suppress the pathogenesis of necroptosis-driven disorders.
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Affiliation(s)
- Deepika Arora
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, Uttar Pradesh, India
| | - Pradeep Kumar Sharma
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Mohammed Haris Siddiqui
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, Uttar Pradesh, India
| | - Yogeshwer Shukla
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India.
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97
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Simon DW, McGeachy M, Bayır H, Clark RS, Loane DJ, Kochanek PM. The far-reaching scope of neuroinflammation after traumatic brain injury. Nat Rev Neurol 2017; 13:171-191. [PMID: 28186177 PMCID: PMC5675525 DOI: 10.1038/nrneurol.2017.13] [Citation(s) in RCA: 593] [Impact Index Per Article: 84.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The 'silent epidemic' of traumatic brain injury (TBI) has been placed in the spotlight as a result of clinical investigations and popular press coverage of athletes and veterans with single or repetitive head injuries. Neuroinflammation can cause acute secondary injury after TBI, and has been linked to chronic neurodegenerative diseases; however, anti-inflammatory agents have failed to improve TBI outcomes in clinical trials. In this Review, we therefore propose a new framework of targeted immunomodulation after TBI for future exploration. Our framework incorporates factors such as the time from injury, mechanism of injury, and secondary insults in considering potential treatment options. Structuring our discussion around the dynamics of the immune response to TBI - from initial triggers to chronic neuroinflammation - we consider the ability of soluble and cellular inflammatory mediators to promote repair and regeneration versus secondary injury and neurodegeneration. We summarize both animal model and human studies, with clinical data explicitly defined throughout this Review. Recent advances in neuroimmunology and TBI-responsive neuroinflammation are incorporated, including concepts of inflammasomes, mechanisms of microglial polarization, and glymphatic clearance. Moreover, we highlight findings that could offer novel therapeutic targets for translational and clinical research, assimilate evidence from other brain injury models, and identify outstanding questions in the field.
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Affiliation(s)
- Dennis W. Simon
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Pediatrics, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Mandy McGeachy
- Department of Medicine, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Hülya Bayır
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Environmental and Occupational Health, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Robert S.B. Clark
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Pediatrics, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Anesthesiology, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Clinical and Translational Science Institute, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - David J. Loane
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MA 21201, USA
| | - Patrick M. Kochanek
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Pediatrics, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Anesthesiology, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
- Department of Neurological Surgery, University of Pittsburgh School of Medicine; The Children’s Hospital of Pittsburgh of UPMC, and the Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
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98
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Zhang HB, Cheng SX, Tu Y, Zhang S, Hou SK, Yang Z. Protective effect of mild-induced hypothermia against moderate traumatic brain injury in rats involved in necroptotic and apoptotic pathways. Brain Inj 2017; 31:406-415. [PMID: 28140659 DOI: 10.1080/02699052.2016.1225984] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
AIM To investigate the protective effect of hypothermia (HT) on brain injury in moderate traumatic brain injury (TBI) rat models and the potential mechanisms, especially the involvement of RIPK1 in apoptosis and necroptosis. METHODS Adult Sprague-Dawley rats were randomized to four groups: sham+normothermia (sham+NT), sham+hypothermia (sham+HT), moderate TBI+normothermia (TBI+NT) and moderate TBI+hypothermia (TBI+HT). The sham+HT and TBI+HT groups were submitted to 32°C for 6 hours. The regional cerebral blood flow (rCBF) was assessed 24 hours after TBI; 24 and 48 hours after TBI, the modified neurological severity score (mNSS) was assessed. Immediately after behavioural tests, rats were sacrificed to harvest the brain tissues. RESULTS mNSS scores were lower in the TBI+HT group compared with the TBI+NT group (p < 0.01) and cerebral blood flow was better (p < 0.01). H&E staining of the cortex and ipsilateral hippocampus showed pyknotic and irregularly shaped neurons in TBI+NT rats, which were less frequent in TBI+HT rats. The TBI+NT and TBI+HT groups showed higher TNF-α, TRAIL, FasL, FADD, caspase-3, caspase-8, PARP-1, RIPK-1 and RIPK-3 levels than the sham+NT group (all p < 0.05), but the levels of these proteins were all lower in the TBI+HT group compared with the TBI+NT group (all p < 0.01). CONCLUSION HT treatment significantly reduced RIPK-1 upregulation, which may inhibit necroptosis and apoptosis pathways after moderate TBI.
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Affiliation(s)
- Hai-Bo Zhang
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
| | - Shi-Xiang Cheng
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
| | - Yue Tu
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
| | - Sai Zhang
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
| | - Shi-Ke Hou
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
| | - Zhen Yang
- a Tianjin Key Laboratory of Neurotrauma Repair, Institute of Traumatic Brain Injury and Neuroscience of Chinese People's Armed Police Forces (PAP) , Neurosurgical and Neurological Hospital of PAP , Tianjin , PR China
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Üçal M, Kraitsy K, Weidinger A, Paier-Pourani J, Patz S, Fink B, Molcanyi M, Schäfer U. Comprehensive Profiling of Modulation of Nitric Oxide Levels and Mitochondrial Activity in the Injured Brain: An Experimental Study Based on the Fluid Percussion Injury Model in Rats. J Neurotrauma 2017; 34:475-486. [DOI: 10.1089/neu.2016.4411] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Muammer Üçal
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, Graz, Austria
| | - Klaus Kraitsy
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, Graz, Austria
| | - Adelheid Weidinger
- Ludwig Boltzmann Institute for Clinical and Experimental Traumatology, Vienna, Austria
| | - Jamile Paier-Pourani
- Ludwig Boltzmann Institute for Clinical and Experimental Traumatology, Vienna, Austria
| | - Silke Patz
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, Graz, Austria
| | - Bruno Fink
- NOXYGEN Science Transfer & Diagnostics GmbH, Elzach, Germany
| | - Marek Molcanyi
- Institute for Neurophysiology, Medical Faculty, University of Cologne, Cologne, Germany
| | - Ute Schäfer
- Research Unit Experimental Neurotraumatology, Department of Neurosurgery, Medical University Graz, Graz, Austria
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100
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Ichiseki T, Ueda S, Ueda Y, Tuchiya M, Kaneuji A, Kawahara N. Involvement of necroptosis, a newly recognized cell death type, in steroid-induced osteonecrosis in a rabbit model. Int J Med Sci 2017; 14:110-114. [PMID: 28260985 PMCID: PMC5332838 DOI: 10.7150/ijms.17134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 11/24/2016] [Indexed: 01/01/2023] Open
Abstract
We investigated the role of programmed necrosis (necroptosis), a newly recognized form of cell necrosis that has been implicated in the development of steroid-induced osteonecrosis. We used an osteonecrosis model in which 30 Japanese white rabbits each weighing 3.5kg were injected once with methylprednisolone at 20 mg/kg body weight into the right gluteal muscle. Ten animals killed 14 days thereafter were designated as S14d groups, while another 10 animals injected with necroptosis, a specific inhibitor of necrostatin-1 i.v. at 1.65mg/kg on the same day as the steroid were also killed on the 14th day and designated as SN14d group. As a control, 10 animals injected only with physiological saline were studied as N group. After the animals were sacrificed the bilateral femoral bone was examined histopathologically and the presence of osteonecrosis determined. Furthermore, animals subjected to the same treatment and killed on the 3rd day after drug administration were set up as S3d group and SN3d group, and Western blotting of Receptor-interacting protein ( RIP ) 1 and RIP3 in femoral bone performed. The osteonecrosis rate was 70% in S14d group, and 0% in both N and SN groups. In 2 of 10 animals in SN group fatty marrow was found. On Western blotting significantly increased expression of both RIP1 and RIP3 was noted in S3d group, confirming that Nec-1 was suppressed. Necroptosis mediated by RIP1 and RIP3 expression was thought to be implicated in the development of steroid-induced osteonecrosis. Also, by suppressing expression of RIP1 and 3 with the administration of Nec-1 the osteonecrosis rate was significantly decreased. These results suggest that necroptosis may have potential as a novel target for both elucidating the mechanisms underlying steroid-induced osteonecrosis and establishing more effective prophylactic countermeasures.
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Affiliation(s)
- Toru Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shusuke Ueda
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Yoshimichi Ueda
- Department of Pathology, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Masanobu Tuchiya
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Ayumi Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Norio Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
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