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Gareev I, Beylerli O, Liang Y, Lu E, Ilyasova T, Sufianov A, Sufianova G, Shi H, Ahmad A, Yang G. The Role of Mitochondria-Targeting miRNAs in Intracerebral Hemorrhage. Curr Neuropharmacol 2023; 21:1065-1080. [PMID: 35524670 PMCID: PMC10286585 DOI: 10.2174/1570159x20666220507021445] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 04/02/2022] [Accepted: 04/24/2022] [Indexed: 11/22/2022] Open
Abstract
Non-traumatic intracerebral hemorrhage (ICH) is the most common type of hemorrhagic stroke, most often occurring between the ages of 45 and 60. Arterial hypertension (AH) is most often the cause of ICH, followed by atherosclerosis, blood diseases, inflammatory changes in cerebral vessels, intoxication and vitamin deficiencies. Cerebral hemorrhage can occur by diapedesis or as a result of a ruptured vessel. AH is difficult to treat, requires surgery and can lead to disability or death. One of the important directions in the study of the pathogenesis of ICH is mitochondrial dysfunction and its regulation. The key role of mitochondrial dysfunction in AH and atherosclerosis, as well as in the development of brain damage after hemorrhage, has been acknowledged. MicroRNAs (miRNAs) are a class of non-coding RNAs (about 18-22 nucleotides) that regulate a variety of biological processes including cell differentiation, proliferation, apoptosis, etc., primarily through gene repression. There is growing evidence to support dysregulated miRNAs in various cardiovascular diseases, including ICH. Further, the realization of miRNAs within mitochondrial compartment has challenged the traditional knowledge of signaling pathways involved in the regulatory network of cardiovascular diseases. However, the role of miRNAs in mitochondrial dysfunction for ICH is still under-appreciated, with comparatively much lesser studies and investigations reported, than those in other cardiovascular diseases. In this review, we summarize the up-to-date findings on the published role miRNAs in mitochondrial function for ICH, and the potential use of miRNAs in clinical settings, such as potential therapeutic targets and non-invasive diagnostic/prognostic biomarker tools.
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Affiliation(s)
- Ilgiz Gareev
- Federal Centre of Neurosurgery, Tyumen, Russia
- Рeoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
| | - Ozal Beylerli
- Federal Centre of Neurosurgery, Tyumen, Russia
- Рeoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
| | - Yanchao Liang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- Institute of Brain Science, Harbin Medical University, Harbin, 150001, China
| | - Enzhou Lu
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- Institute of Brain Science, Harbin Medical University, Harbin, 150001, China
| | - Tatiana Ilyasova
- Bashkir State Medical University, Ufa, Republic of Bashkortostan, 450008, Russia
| | - Albert Sufianov
- Federal Centre of Neurosurgery, Tyumen, Russia
- Department of Neurosurgery, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Рeoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
| | - Galina Sufianova
- Department of Pharmacology, Tyumen State Medical University, Tyumen, Russia
| | - Huaizhang Shi
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- Institute of Brain Science, Harbin Medical University, Harbin, 150001, China
| | - Aamir Ahmad
- Interim Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Guang Yang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- Institute of Brain Science, Harbin Medical University, Harbin, 150001, China
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2
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Arruri V, Vemuganti R. Role of autophagy and transcriptome regulation in acute brain injury. Exp Neurol 2022; 352:114032. [PMID: 35259350 PMCID: PMC9187300 DOI: 10.1016/j.expneurol.2022.114032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/17/2022] [Accepted: 02/28/2022] [Indexed: 01/18/2023]
Abstract
Autophagy is an evolutionarily conserved intracellular system that routes distinct cytoplasmic cargo to lysosomes for degradation and recycling. Accumulating evidence highlight the mechanisms of autophagy, such as clearance of proteins, carbohydrates, lipids and damaged organelles. The critical role of autophagy in selective degradation of the transcriptome is still emerging and could shape the total proteome of the cell, and thus can regulate the homeostasis under stressful conditions. Unregulated autophagy that potentiates secondary brain damage is a key pathological features of acute CNS injuries such as stroke and traumatic brain injury. This review discussed the mutual modulation of autophagy and RNA and its significance in mediating the functional consequences of acute CNS injuries.
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Affiliation(s)
- Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA; William S. Middleton Memorial Veteran Administration Hospital, Madison, WI, USA.
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Khan A, Kuriachan G, Mahalakshmi R. Cellular Interactome of Mitochondrial Voltage-Dependent Anion Channels: Oligomerization and Channel (Mis)Regulation. ACS Chem Neurosci 2021; 12:3497-3515. [PMID: 34503333 DOI: 10.1021/acschemneuro.1c00429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Voltage-dependent anion channels (VDACs) of the outer mitochondrial membrane are known conventionally as metabolite flux proteins. However, research findings in the past decade have revealed the multifaceted regulatory roles of VDACs, from governing cellular physiology and mitochondria-mediated apoptosis to directly regulating debilitating cancers and neurodegenerative diseases. VDACs achieve these diverse functions by establishing isoform-dependent stereospecific interactomes in the cell with the cytosolic constituents and endoplasmic reticulum complexes, and the machinery of the mitochondrial compartments. VDACs are now increasingly recognized as regulatory hubs of the cell. Not surprisingly, even the transient misregulation of VDACs results directly in mitochondrial dysfunction. Additionally, human VDACs are now implicated in interaction with aggregation-prone cytosolic proteins, including Aβ, tau, and α-synuclein, contributing directly to the onset of Alzheimer's and Parkinson's diseases. Deducing the interaction dynamics and mechanisms can lead to VDAC-targeted peptide-based therapeutics that can alleviate neurodegenerative states. This review succinctly presents the latest findings of the VDAC interactome, and the mode(s) of VDAC-dependent regulation of biochemical physiology. We also discuss the relevance of VDACs in pathophysiological states and aggregation-associated diseases and address how VDACs will facilitate the development of next-generation precision medicines.
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Affiliation(s)
- Altmash Khan
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Gifty Kuriachan
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Radhakrishnan Mahalakshmi
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
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Hsu SS, Lin YS, Liang WZ. Mechanism of action of a diterpene alkaloid hypaconitine on cytotoxicity and inhibitory effect of BAPTA-AM in HCN-2 neuronal cells. Clin Exp Pharmacol Physiol 2021; 48:801-810. [PMID: 33609056 DOI: 10.1111/1440-1681.13482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/11/2021] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
Hypaconitine, a neuromuscular blocker, is a diterpene alkaloid found in the root of Aconitum carmichaelii. Although hypaconitine was shown to affect various physiological responses in neurological models, the effect of hypaconitine on cell viability and the mechanism of its action of Ca2+ handling is elusive in cortical neurons. This study examined whether hypaconitine altered viability and Ca2+ signalling in HCN-2 neuronal cell lines. Cell viability was measured by the cell proliferation reagent (WST-1). Cytosolic Ca2+ concentrations [Ca2+ ]i was measured by the Ca2+ -sensitive fluorescent dye fura-2. In HCN-2 cells, hypaconitine (10-50 μmol/L) induced cytotoxicity and [Ca2+ ]i rises in a concentration-dependent manner. Removal of extracellular Ca2+ partially reduced the hypaconitine's effect on [Ca2+ ]i rises. Furthermore, chelation of cytosolic Ca2+ with BAPTA-AM reduced hypaconitine's cytotoxicity. In Ca2+ -containing medium, hypaconitine-induced Ca2+ entry was inhibited by modulators (2-APB and SKF96365) of store-operated Ca2+ channels and a protein kinase C (PKC) inhibitor (GF109203X). Hypaconitine induced Mn2+ influx indirectly suggesting that hypaconitine evoked Ca2+ entry. In Ca2+ -free medium, treatment with the endoplasmic reticulum Ca2+ pump inhibitor thapsigargin abolished hypaconitine-induced [Ca2+ ]i rises. Conversely, treatment with hypaconitine inhibited thapsigargin-induced [Ca2+ ]i rises. However, inhibition of phospholipase C (PLC) with U73122 did not inhibit hypaconitine-induced [Ca2+ ]i rises. Together, hypaconitine caused cytotoxicity that was linked to preceding [Ca2+ ]i rises by Ca2+ influx via store-operated Ca2+ entry involved PKC regulation and evoking PLC-independent Ca2+ release from the endoplasmic reticulum. Because BAPTA-AM loading only partially reversed hypaconitine-induced cell death, it suggests that hypaconitine induced a second Ca2+ -independent cytotoxicity in HCN-2 cells.
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Affiliation(s)
- Shu-Shong Hsu
- Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Neurosurgery, National Defense Medical Center, Taipei, Taiwan
- College of Health and Nursing, Meiho University, Pingtung, Taiwan
| | - Yung-Shang Lin
- Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wei-Zhe Liang
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County, Taiwan
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Zhu L, Lin M, Ma J, Liu W, Gao L, Wei S, Xue Y, Shang X. The role of LINC00094/miR-224-5p (miR-497-5p)/Endophilin-1 axis in Memantine mediated protective effects on blood-brain barrier in AD microenvironment. J Cell Mol Med 2019; 23:3280-3292. [PMID: 30801976 PMCID: PMC6484416 DOI: 10.1111/jcmm.14214] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/19/2018] [Accepted: 01/20/2019] [Indexed: 12/16/2022] Open
Abstract
The dysfunction of the blood-brain barrier (BBB) is one of the main pathological features of Alzheimer's disease (AD). Memantine (MEM), an N-methyl-d-aspartate (NMDA) receptor antagonist, has been reported that been used widely for AD therapy. This study was performed to demonstrate the role of the MEM in regulating BBB permeability in AD microenvironment as well as its possible mechanisms. The present study showed that LINC00094 was dramatically increased in Abeta1-42 -incubated microvascular endothelial cells (ECs) of BBB model in vitro. Besides, it was decreased in MEM-incubated ECs. Silencing LINC00094 significantly decreased BBB permeability, meanwhile up-regulating the expression of ZO-1, occludin and claudin-5. Furthermore, silencing LINC00094 enhance the effect of MEM on decreasing BBB permeability in AD microenvironment. The analysis of the mechanism demonstrated that reduction of LINC00094 inhibited Endophilin-1 expression by up-regulating miR-224-4p/miR-497-5p, promoted the expression of ZO-1, occludin and claudin-5, and ultimately alleviated BBB permeability in AD microenvironment. Taken together, the present study suggests that the MEM/LINC00094/miR-224-5p (miR-497-5p)/Endophilin-1 axis plays a crucial role in the regulation of BBB permeability in AD microenvironment. Silencing LINC00094 combined with MEM provides a novel target for the therapy of AD.
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Affiliation(s)
- Lu Zhu
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Meiqing Lin
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jun Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Wenjing Liu
- Department of Geriatrics, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lili Gao
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shanshan Wei
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Xiuli Shang
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
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Qian Z, Lin Y, Xing J, Qiu Y, Ren L. Expression and functions of glutamate and γ‑aminobutyric acid transporters in ischemic models. Mol Med Rep 2018; 17:8196-8202. [PMID: 29693164 PMCID: PMC5984000 DOI: 10.3892/mmr.2018.8888] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 09/12/2017] [Indexed: 11/21/2022] Open
Abstract
Glutamate and γ-aminobutyric acid (GABA) transporters serve central roles in normal neuronal activity and are associated with numerous pathological brain conditions, including ischemia and epilepsy. However, the interplay between these transporters in ischemia remains unclear. In the present study, the expression levels of the excitatory amino acid carrier 1 (EAAC1) and GABA transporter 1 (GAT1) were analyzed in vivo and in vitro within ischemic models by immunofluorescence, western blot and RT-qPCR. Cell survival rates were analyzed following altered expression of these transporters within neuronal cells by flow cytometry. Expression levels of EAAC1 were reduced within the cerebrum of focal cerebral ischemic middle cerebral artery occlusion rat models as well as in primary neurons cultured under hypoxia. However, GAT1 expression levels were slightly elevated under ischemic conditions. The altered expression levels of EAAC1 and GAT1 were combined within neuron cells and the effects were investigated. Apoptotic analysis revealed that EAAC1 suppression and overexpression of GAT1 increased neuronal cell apoptosis under hypoxic conditions; however, EAAC1 overexpression combined with GAT1 knockdown reduced neuronal cell apoptosis under hypoxic conditions. The present study detected the expression levels of the glutamate and GABA transporters under hypoxia, in association with ischemia. The results indicated that, increased expression of EAAC1 combined with GAT1 suppression may provide protective effects in the treatment of epilepsy and ischemia.
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Affiliation(s)
- Zhongrun Qian
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Yingying Lin
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Jin Xing
- Department of Neurosurgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
| | - Yongming Qiu
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Li Ren
- Department of Neurosurgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
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7
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Shoshan-Barmatz V, Krelin Y, Shteinfer-Kuzmine A. VDAC1 functions in Ca 2+ homeostasis and cell life and death in health and disease. Cell Calcium 2017; 69:81-100. [PMID: 28712506 DOI: 10.1016/j.ceca.2017.06.007] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/21/2017] [Accepted: 06/21/2017] [Indexed: 01/15/2023]
Abstract
In the outer mitochondrial membrane (OMM), the voltage-dependent anion channel 1 (VDAC1) serves as a mitochondrial gatekeeper, controlling the metabolic and energy cross-talk between mitochondria and the rest of the cell. VDAC1 also functions in cellular Ca2+ homeostasis by transporting Ca2+ in and out of mitochondria. VDAC1 has also been recognized as a key protein in mitochondria-mediated apoptosis, contributing to the release of apoptotic proteins located in the inter-membranal space (IMS) and regulating apoptosis via association with pro- and anti-apoptotic members of the Bcl-2 family of proteins and hexokinase. VDAC1 is highly Ca2+-permeable, transporting Ca2+ to the IMS and thus modulating Ca2+ access to Ca2+ transporters in the inner mitochondrial membrane. Intra-mitochondrial Ca2+ controls energy metabolism via modulating critical enzymes in the tricarboxylic acid cycle and in fatty acid oxidation. Ca2+ also determines cell sensitivity to apoptotic stimuli and promotes the release of pro-apoptotic proteins. However, the precise mechanism by which intracellular Ca2+ mediates apoptosis is not known. Here, the roles of VDAC1 in mitochondrial Ca2+ homeostasis are presented while emphasizing a new proposed mechanism for the mode of action of pro-apoptotic drugs. This view, proposing that Ca2+-dependent enhancement of VDAC1 expression levels is a major mechanism by which apoptotic stimuli induce apoptosis, position VDAC1 oligomerization at a molecular focal point in apoptosis regulation. The interactions of VDAC1 with many proteins involved in Ca2+ homeostasis or regulated by Ca2+, as well as VDAC-mediated control of cell life and death and the association of VDAC with disease, are also presented.
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Affiliation(s)
- Varda Shoshan-Barmatz
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Yakov Krelin
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Shteinfer-Kuzmine
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Shen B, Pan Q, Yang Y, Gao Y, Liu X, Li W, Han Y, Yuan X, Qu Y, Zhao Z. miR-224 Affects Mammary Epithelial Cell Apoptosis and Triglyceride Production by Downregulating ACADM and ALDH2 Genes. DNA Cell Biol 2016; 36:26-33. [PMID: 27918674 DOI: 10.1089/dna.2016.3540] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNA molecules that involve in various biological functions by regulating the expressions of target genes. In recent years, many researchers have demonstrated that miR-224 played an important role in regulating lipid metabolism. Therefore, in this study, the target genes of miR-224 were verified and the regulatory role of miR-224 was confirmed in lipid metabolism. In this study, bioinformatics methods were used for primarily predicting the target gene of miR-224 and dual-luciferase reporter system was used for further verify the relationship between miR-224 and its target gene. Then, the miR-224 mimics, miR-224 inhibitor, and miRNA-ShNC were transfected into mammary epithelial cells (MECs), respectively, and the expression of miR-224 and its target genes was detected by quantitative real-time polymerase chain reaction and Western blot. Furthermore, the triglyceride production and cell apoptosis were detected by triglyceride mensuration reagent kit using flow cytometry. The results showed that ACADM and ALDH2 were predicted to be the target genes of miR-224, primarily by bioinformatics analysis. We founded that miR-224 could recognize with ACADM-3'UTR and ALDH2-3'UTR, indicating that the target sites existed in 3'UTR of ACADM and ALDH2. And then, the expressions of miR-224 had negative trend with the levels of ACADM and ALDH2, suggesting that miR-224 could downregulate the expressions of ACADM and ALDH2. Finally, the triglyceride production decreased and apoptosis rate increased after the overexpression of miR-224 in MECs. The above results indicated that miR-224 regulating target genes in lipid metabolism might be used as a new pathway for better breeding.
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Affiliation(s)
- Binglei Shen
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Qiqi Pan
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Yuwei Yang
- 2 College of Animal Science, Jilin University , Changchun, Jilin, People's Republic of China
| | - Yan Gao
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Xin Liu
- 2 College of Animal Science, Jilin University , Changchun, Jilin, People's Republic of China
| | - Wei Li
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Yunsheng Han
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Xue Yuan
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Yongli Qu
- 1 College of Animal Science, Heilongjiang Bayi Agricultural University , Daqing, People's Republic of China
| | - Zhihui Zhao
- 2 College of Animal Science, Jilin University , Changchun, Jilin, People's Republic of China
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