1
|
Tausif YM, Thekkekkara D, Sai TE, Jahagirdar V, Arjun HR, Meheronnisha SK, Babu A, Banerjee A. Heat shock protein paradigms in cancer progression: future therapeutic perspectives. 3 Biotech 2024; 14:96. [PMID: 38449709 PMCID: PMC10912419 DOI: 10.1007/s13205-024-03951-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 01/28/2024] [Indexed: 03/08/2024] Open
Abstract
Heat-shock proteins (HSPs), also known as stress proteins, are ubiquitously present in all forms of life. They play pivotal roles in protein folding and unfolding, the formation of multiprotein complexes, the transportation and sorting of proteins into their designated subcellular compartments, the regulation of the cell cycle, and signalling processes. These HSPs encompass HSP27, HSP40, HSP70, HSP60, and HSP90, each contributing to various cellular functions. In the context of cancer, HSPs exert influence by either inhibiting or activating diverse signalling pathways, thereby impacting growth, differentiation, and cell division. This article offers an extensive exploration of the functions of HSPs within the realms of pharmacology and cancer biology. HSPs are believed to play substantial roles in the mechanisms underlying the initiation and progression of cancer. They hold promise as valuable clinical markers for cancer diagnosis, potential targets for therapeutic interventions, and indicators of disease progression. In times of cellular stress, HSPs function as molecular chaperones, safeguarding the structural and functional integrity of proteins and aiding in their proper folding. Moreover, HSPs play a crucial role in cancer growth, by regulating processes such as angiogenesis, cell proliferation, migration, invasion, and metastasis.
Collapse
Affiliation(s)
- Y. Mohammed Tausif
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Dithu Thekkekkara
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Thummuru Ekshita Sai
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Vaishnavi Jahagirdar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - H. R. Arjun
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - S. K. Meheronnisha
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Amrita Babu
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Aniruddha Banerjee
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| |
Collapse
|
2
|
Yeh TY, Chang MF, Kan YY, Chiang H, Hsieh ST. HSP27 Modulates Neuropathic Pain by Inhibiting P2X3 Degradation. Mol Neurobiol 2024; 61:707-724. [PMID: 37656312 DOI: 10.1007/s12035-023-03582-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
The role of heat shock protein 27 (HSP27), a chaperone, in neuropathic pain after nerve injury has not been systematically surveyed despite its neuroprotective and regeneration-promoting effects. In this study, we found that HSP27 expression in sensory neurons of the dorsal root ganglia (DRG) mediated nerve injury-induced neuropathic pain. Neuropathic pain behaviors were alleviated by silencing HSP27 in the DRG of a rat spinal nerve ligation (SNL) model. Local injection of an HSP27-overexpression construct into the DRG of naïve rats elicited neuropathic pain behaviors. HSP27 interacted with a purinergic receptor, P2X3, and their expression patterns corroborated the induction and reversal of neuropathic pain according to two lines of evidence: colocalization immunohistochemically and immunoprecipitation biochemically. In a cell model cotransfected with HSP27 and P2X3, the degradation rate of P2X3 was reduced in the presence of HSP27. Such an alteration was mediated by reducing P2X3 ubiquitination in SNL rats and was reversed after silencing HSP27 in the DRGs of SNL rats. In summary, the interaction of HSP27 with P2X3 provides a new mechanism of injury-induced neuropathic pain that could serve as an alternative therapeutic target.
Collapse
Affiliation(s)
- Ti-Yen Yeh
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Ming-Fong Chang
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Yu-Yu Kan
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | | | - Sung-Tsang Hsieh
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan.
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan.
- Center of Precision Medicine, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan.
- Department of Neurology, National Taiwan University Hospital, Taipei, 10002, Taiwan.
| |
Collapse
|
3
|
Alharbi KS, Almalki WH, Alzarea SI, Kazmi I, Al-Abbasi FA, Afzal O, Altamimi ASA, Albratty M, Najmi A, Gupta G. Anaesthesia-induced Changes in Genomic Expression Leading to Neurodegeneration. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:411-419. [PMID: 37157197 DOI: 10.2174/1871527322666230508123558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 05/10/2023]
Abstract
General anaesthetics (GA) have been in continuous clinical use for more than 170 years, with millions of young and elderly populations exposed to GA to relieve perioperative discomfort and carry out invasive examinations. Preclinical studies have shown that neonatal rodents with acute and chronic exposure to GA suffer from memory and learning deficits, likely due to an imbalance between excitatory and inhibitory neurotransmitters, which has been linked to neurodevelopmental disorders. However, the mechanisms behind anaesthesia-induced alterations in late postnatal mice have yet to be established. In this narrative review, we present the current state of knowledge on early life anaesthesia exposure-mediated alterations of genetic expression, focusing on insights gathered on propofol, ketamine, and isoflurane, as well as the relationship between network effects and subsequent biochemical changes that lead to long-term neurocognitive abnormalities. Our review provides strong evidence and a clear picture of anaesthetic agents' pathological events and associated transcriptional changes, which will provide new insights for researchers to elucidate the core ideas and gain an in-depth understanding of molecular and genetic mechanisms. These findings are also helpful in generating more evidence for understanding the exacerbated neuropathology, impaired cognition, and LTP due to acute and chronic exposure to anaesthetics, which will be beneficial for the prevention and treatment of many diseases, such as Alzheimer's disease. Given the many procedures in medical practice that require continuous or multiple exposures to anaesthetics, our review will provide great insight into the possible adverse impact of these substances on the human brain and cognition.
Collapse
Affiliation(s)
- Khalid Saad Alharbi
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al-Jouf, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al-Jouf, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj, 11942, Saudi Arabia
| | | | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box. 114, Jazan 45142, Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box. 114, Jazan 45142, Saudi Arabia
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, 302017, Jaipur, India
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| |
Collapse
|
4
|
Wang X, Wang H, Li J, Li L, Wang Y, Li A. Salt-induced phosphoproteomic changes in the subfornical organ in rats with chronic kidney disease. Ren Fail 2023; 45:2171886. [PMID: 36715439 PMCID: PMC9888458 DOI: 10.1080/0886022x.2023.2171886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVES Subfornical organ (SFO) is vital in chronic kidney disease (CKD) progression caused by high salt levels. The current study investigated the effects of high salt on phosphoproteomic changes in SFO in CKD rats. METHODS 5/6 nephrectomized rats were fed a normal-salt diet (0.4%) (NC group) or a high-salt diet (4%) (HC group) for three weeks, while sham-operated rats were fed a normal-salt diet (0.4%) (NS group). For phosphoproteomic analysis of SFO in different groups, TiO2 enrichment, isobaric tags for relative and absolute quantification (iTRAQ) labeling, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) were used. RESULTS There were 6808 distinct phosphopeptides found, which corresponded to 2661 phosphoproteins. NC group had 168 upregulated and 250 downregulated phosphopeptides compared to NS group. Comparison to NC group, HC group had 154 upregulated and 124 downregulated phosphopeptides. Growth associated protein 43 (GAP43) and heat shock protein 27 (Hsp27) were significantly upregulated phosphoproteins and may protect against high-salt damage. Differential phosphoproteins with tight functional connection were synapse proteins and microtubule-associated proteins, implying that high-salt diet disrupted brain's structure and function. Furthermore, differential phosphoproteins in HC/NC comparison group were annotated to participate in GABAergic synapse signaling pathway and aldosterone synthesis and secretion, which attenuated inhibitory neurotransmitter effects and increased sympathetic nerve activity (SNA). DISCUSSION This large scale phosphoproteomic profiling of SFO sheds light on how salt aggravates CKD via the central nervous system.
Collapse
Affiliation(s)
- Xin Wang
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Renal Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Huizhen Wang
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Renal Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiawen Li
- Nephrology Division, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lanying Li
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yifan Wang
- Anshun People’s Hospital of Guizhou Province, Anshun, China
| | - Aiqing Li
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Renal Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China,CONTACT Aiqing Li National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Clinical Research Center for Kidney Disease, Guangdong Provincial Key Laboratory of Renal Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| |
Collapse
|
5
|
Qiao H, Xu Q, Xu Y, Zhao Y, He N, Tang J, Zhao J, Liu Y. Molecular chaperones in stroke-induced immunosuppression. Neural Regen Res 2023; 18:2638-2644. [PMID: 37449602 DOI: 10.4103/1673-5374.373678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Stroke-induced immunosuppression is a process that leads to peripheral suppression of the immune system after a stroke and belongs to the central nervous system injury-induced immunosuppressive syndrome. Stroke-induced immunosuppression leads to increased susceptibility to post-stroke infections, such as urinary tract infections and stroke-associated pneumonia, worsening prognosis. Molecular chaperones are a large class of proteins that are able to maintain proteostasis by directing the folding of nascent polypeptide chains, refolding misfolded proteins, and targeting misfolded proteins for degradation. Various molecular chaperones have been shown to play roles in stroke-induced immunosuppression by modulating the activity of other molecular chaperones, cochaperones, and their associated pathways. This review summarizes the role of molecular chaperones in stroke-induced immunosuppression and discusses new approaches to restore host immune defense after stroke.
Collapse
Affiliation(s)
- Haoduo Qiao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Qing Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Yunfei Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Yao Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Nina He
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Jie Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Jie Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| | - Ying Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University; Department of Pathophysiology, Xiangya School of Medicine, Central South University; Sepsis Translational Medicine Key Laboratory of Hunan Province; National Medicine Functional Experimental Teaching Center, Changsha, Hunan Province, China
| |
Collapse
|
6
|
Andor A, Mohanraj M, Pató ZA, Úri K, Biri-Kovács B, Cheng Q, Arnér ESJ. TXNL1 has dual functions as a redox active thioredoxin-like protein as well as an ATP- and redox-independent chaperone. Redox Biol 2023; 67:102897. [PMID: 37804695 PMCID: PMC10570131 DOI: 10.1016/j.redox.2023.102897] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 10/09/2023] Open
Abstract
TXNL1 (also named TRP32, for thioredoxin related protein of 32 kDa) is a cytosolic thioredoxin-fold protein expressed in all cell types and conserved from yeast to mammals, but with yet poorly known function. Here, we expressed and purified human TXNL1 together with several Cys-to-Ser variants, characterizing their enzymatic properties. TXNL1 could reduce disulfides in insulin, cystine and glutathione disulfide (GSSG) in reactions coupled to thioredoxin reductase (TXNRD1, TrxR1) using NADPH, similarly to thioredoxin (TXN, Trx1), but with lower catalytic efficacy due to at least one order of magnitude higher Km of TrxR1 for TXNL1 compared to Trx1. However, in sharp contrast to Trx1, we found that TXNL1 also had efficient chaperone activity that did not require ATP. TXNL1 made non-covalent complexes with reduced insulin, thereby keeping it in solution, and TXNL1 provided chaperone function towards whole cell lysate proteins by preventing their aggregation during heating. The chaperone activities of TXNL1 did not require its redox activity or any dithiol-disulfide exchange reactions, as revealed using Cys-to-Ser substituted variants, as well as a maintained chaperone activity of TXNL1 also in the absence of TrxR1 and NADPH. These results reveal that TXNL1 has dual functions, supporting TrxR1-driven redox activities in disulfide reduction reactions, as well as being an ATP-independent chaperone that does not require involvement of its redox activity.
Collapse
Affiliation(s)
- Attila Andor
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Mahendravarman Mohanraj
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Zsuzsanna Anna Pató
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Katalin Úri
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Beáta Biri-Kovács
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Qing Cheng
- Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Elias S J Arnér
- Department of Selenoprotein Research and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Division of Biochemistry, Department of Medical Biochemistry, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
| |
Collapse
|
7
|
Li Z, Tang W, Zhang B, Yang R, Miao X. Emerging memristive neurons for neuromorphic computing and sensing. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2188878. [PMID: 37090846 PMCID: PMC10120469 DOI: 10.1080/14686996.2023.2188878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Inspired by the principles of the biological nervous system, neuromorphic engineering has brought a promising alternative approach to intelligence computing with high energy efficiency and low consumption. As pivotal components of neuromorphic system, artificial spiking neurons are powerful information processing units and can achieve highly complex nonlinear computations. By leveraging the switching dynamic characteristics of memristive device, memristive neurons show rich spiking behaviors with simple circuit. This report reviews the memristive neurons and their applications in neuromorphic sensing and computing systems. The switching mechanisms that endow memristive devices with rich dynamics and nonlinearity are highlighted, and subsequently various nonlinear spiking neuron behaviors emulated in these memristive devices are reviewed. Then, recent development is introduced on neuromorphic system with memristive neurons for sensing and computing. Finally, we discuss challenges and outlooks of the memristive neurons toward high-performance neuromorphic hardware systems and provide an insightful perspective for the development of interactive neuromorphic electronic systems.
Collapse
Affiliation(s)
- Zhiyuan Li
- School of Integrated Circuits, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
- Hubei Yangtze Memory Laboratories, Wuhan, China
| | - Wei Tang
- School of Integrated Circuits, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
- Hubei Yangtze Memory Laboratories, Wuhan, China
| | - Beining Zhang
- School of Integrated Circuits, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
- Hubei Yangtze Memory Laboratories, Wuhan, China
| | - Rui Yang
- School of Integrated Circuits, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
- Hubei Yangtze Memory Laboratories, Wuhan, China
- CONTACT Rui Yang School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan430074, China; Hubei Yangtze Memory Laboratories, Wuhan 430205, China
| | - Xiangshui Miao
- School of Integrated Circuits, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
- Hubei Yangtze Memory Laboratories, Wuhan, China
| |
Collapse
|
8
|
Ilieva M, Aldana BI, Vinten KT, Hohmann S, Woofenden TW, Lukjanska R, Waagepetersen HS, Michel TM. Proteomic phenotype of cerebral organoids derived from autism spectrum disorder patients reveal disrupted energy metabolism, cellular components, and biological processes. Mol Psychiatry 2022; 27:3749-3759. [PMID: 35618886 DOI: 10.1038/s41380-022-01627-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/04/2022] [Accepted: 05/12/2022] [Indexed: 02/08/2023]
Abstract
The way in which brain morphology and proteome are remodeled during embryonal development, and how they are linked to the cellular metabolism, could be a key for elucidating the pathological mechanisms of certain neurodevelopmental disorders. Cerebral organoids derived from autism spectrum disorder (ASD) patients were generated to capture critical time-points in the neuronal development, and metabolism and protein expression were investigated. The early stages of development, when neurogenesis commences (day in vitro 39), appeared to be a critical timepoint in pathogenesis. In the first month of development, increased size in ASD-derived organoids were detected in comparison to the controls. The size of the organoids correlates with the number of proliferating cells (Ki-67 positive cells). A significant difference in energy metabolism and proteome phenotype was also observed in ASD organoids at this time point, specifically, prevalence of glycolysis over oxidative phosphorylation, decreased ATP production and mitochondrial respiratory chain activity, differently expressed cell adhesion proteins, cell cycle (spindle formation), cytoskeleton, and several transcription factors. Finally, ASD patients and controls derived organoids were clustered based on a differential expression of ten proteins-heat shock protein 27 (hsp27) phospho Ser 15, Pyk (FAK2), Elk-1, Rac1/cdc42, S6 ribosomal protein phospho Ser 240/Ser 244, Ha-ras, mTOR (FRAP) phospho Ser 2448, PKCα, FoxO3a, Src family phospho Tyr 416-at day 39 which could be defined as potential biomarkers and further investigated for potential drug development.
Collapse
Affiliation(s)
- Mirolyuba Ilieva
- Department of Psychiatry, Department of Clinical Research, University of Southern Denmark, Odense, Denmark. .,Psychiatry in the Region of Southern Denmark, Odense University Hospital, Odense, Denmark. .,Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, Copenhagen SV, Denmark.
| | - Blanca Irene Aldana
- Neurometabolism Research Group, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kasper Tore Vinten
- Neurometabolism Research Group, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sonja Hohmann
- Department of Psychiatry, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Psychiatry in the Region of Southern Denmark, Odense University Hospital, Odense, Denmark
| | - Thomas William Woofenden
- Neurometabolism Research Group, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Renate Lukjanska
- Department of Psychiatry, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Psychiatry in the Region of Southern Denmark, Odense University Hospital, Odense, Denmark
| | - Helle S Waagepetersen
- Neurometabolism Research Group, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tanja Maria Michel
- Department of Psychiatry, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Psychiatry in the Region of Southern Denmark, Odense University Hospital, Odense, Denmark
| |
Collapse
|
9
|
Bathini M, Raghushaker CR, Mahato KK. The Molecular Mechanisms of Action of Photobiomodulation Against Neurodegenerative Diseases: A Systematic Review. Cell Mol Neurobiol 2022. [PMID: 33301129 DOI: 10.1007/s10571-020-01016-9,33301129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Neurodegenerative diseases might be slow but relentless, as we continue to fail in treating or delaying their progression. Given the complexity in the pathogenesis of these diseases, a broad-acting approach like photobiomodulation can prove promising. Photobiomodulation (PBM) uses red and infrared light for therapeutic benefits, working by stimulating growth and proliferation. The implications of photobiomodulation have been studied in several neurodegenerative disease models. It has been shown to improve cell survival, decrease apoptosis, alleviate oxidative stress, suppress inflammation, and rescue mitochondrial function. In in vivo models, it has reportedly preserved motor and cognitive skills. Beyond mitochondrial stimulation, the molecular mechanisms by which photobiomodulation protects against neurodegeneration have not been very well studied. This review has systematically been undertaken to study the effects of photobiomodulation at a molecular level and identify the different biochemical pathways and molecular changes in the process. The data showed the involvement of pathways like extracellular signal-regulated kinase (ERK), mitogen-activated protein kinase (MAPK), and protein kinase B (Akt). In addition, the expression of several genes and proteins playing different roles in the disease mechanisms was found to be influenced by PBM, such as neurotrophic factors and secretases. Studying the literature indicated that PBM can be translated to a potential therapeutic tool, acting through a spectrum of mechanisms that work together to decelerate disease progression in the organism, which is difficult to achieve through pharmacological interventions.
Collapse
Affiliation(s)
- Mayukha Bathini
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Chandavalli Ramappa Raghushaker
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Krishna Kishore Mahato
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
| |
Collapse
|
10
|
Zhou XY, Sun JY, Wang WQ, Li SX, Li HX, Yang HJ, Yang MF, Yuan H, Zhang ZY, Sun BL, Han JX. TAT-HSP27 Peptide Improves Neurologic Deficits via Reducing Apoptosis After Experimental Subarachnoid Hemorrhage. Front Cell Neurosci 2022; 16:878673. [PMID: 35573833 PMCID: PMC9096089 DOI: 10.3389/fncel.2022.878673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022] Open
Abstract
Cell apoptosis plays an important role in early brain injury (EBI) after subarachnoid hemorrhage (SAH). Heat shock protein 27 (HSP27), a member of the small heat shock protein (HSP) family, is induced by various stress factors and exerts protective role on cells. However, the role of HSP27 in brain injury after SAH needs to be further clarified. Here, we reported that HSP27 level of cerebrospinal fluid (CSF) is increased obviously at day 1 in patients with aneurysmal SAH (aSAH) and related to the grades of Hunt and Hess (HH), World Federation of Neurological Surgeons (WFNS), and Fisher score. In rat SAH model, HSP27 of CSF is first increased and then obviously declined; overexpression of HSP27, not knockdown of HSP27, attenuates SAH-induced neurological deficit and cell apoptosis in the basal cortex; and overexpression of HSP27 effectively suppresses SAH-elevated activation of mitogen-activated protein Kinase Kinase 4 (MKK4), the c-Jun N-terminal kinase (JNK), c-Jun, and caspase-3. In an in vitro hemolysate-damaged cortical neuron model, HSP2765−90 peptide effectively inhibits hemolysate-induced neuron death. Furthermore, TAT-HSP2765−90 peptide, a fusion peptide consisting of trans-activating regulatory protein (TAT) of HIV and HSP2765−90 peptide, effectively attenuates SAH-induced neurological deficit and cell apoptosis in the basal cortex of rats. Altogether, our results suggest that TAT-HSP27 peptide improves neurologic deficits via reducing apoptosis.
Collapse
Affiliation(s)
- Xiao-yan Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shandong University, Ji'nan, China
- Department of Neurosurgery, First Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
- Biomedical Sciences College and Shandong Medicinal Biotechnology Centre, Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
- Key Lab for Biotech-Drugs of National Health Commission, Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
| | - Jing-yi Sun
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Wei-qi Wang
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shu-xian Li
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Han-xia Li
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Hui-juan Yang
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Ming-feng Yang
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Hui Yuan
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
| | - Zong-yong Zhang
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
- *Correspondence: Zong-yong Zhang
| | - Bao-liang Sun
- Department of Neurology, Key Laboratory of Cerebral Microcirculation, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, China
- Bao-liang Sun
| | - Jin-Xiang Han
- Department of Neurosurgery, First Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
- Biomedical Sciences College and Shandong Medicinal Biotechnology Centre, Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
- Key Lab for Biotech-Drugs of National Health Commission, Shandong First Medical University and Shandong Academy of Medical Sciences, Ji'nan, China
- Jin-Xiang Han
| |
Collapse
|
11
|
Impact of phosphorylation of heat shock protein 27 on the expression profile of periodontal ligament fibroblasts during mechanical strain. J Orofac Orthop 2022; 84:143-153. [PMID: 35445818 PMCID: PMC10126016 DOI: 10.1007/s00056-022-00391-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/04/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Orthodontic tooth movement is a complex process involving the remodeling of extracellular matrix and bone as well as inflammatory processes. During orthodontic treatment, sterile inflammation and mechanical loading favor the production of receptor activator of NF-κB ligand (RANKL). Simultaneously, expression of osteoprotegerin (OPG) is inhibited. This stimulates bone resorption on the pressure side. Recently, heat shock protein 27 (HSP27) was shown to be expressed in the periodontal ligament after force application and to interfere with inflammatory processes. METHODS We investigated the effects of phosphorylated HSP27 on collagen synthesis (COL1A2 mRNA), inflammation (IL1B mRNA, IL6 mRNA, PTGS2 protein) and bone remodeling (RANKL protein, OPG protein) in human periodontal ligament fibroblasts (PDLF) without and with transfection of a plasmid mimicking permanent phosphorylation of HSP27 using real-time quantitative polymerase chain reaction (RT-qPCR), western blot and enzyme-linked immunosorbent assays (ELISAs). Furthermore, we investigated PDLF-induced osteoclastogenesis after compressive strain in a co-culture model with human macrophages. RESULTS In particular, phosphorylated HSP27 increased gene expression of COL1A2 and protein expression of PTGS2, while IL6 mRNA levels were reduced. Furthermore, we observed an increasing effect on the RANKL/OPG ratio and osteoclastogenesis mediated by PDLF. CONCLUSION Phosphorylation of HSP27 may therefore be involved in the regulation of orthodontic tooth movement by impairment of the sterile inflammation response and osteoclastogenesis.
Collapse
|
12
|
HSPB1 Gene Variants and Schizophrenia: A Case-Control Study in a Polish Population. DISEASE MARKERS 2022; 2022:4933011. [PMID: 35340410 PMCID: PMC8941579 DOI: 10.1155/2022/4933011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 02/01/2022] [Accepted: 03/01/2022] [Indexed: 11/20/2022]
Abstract
Schizophrenia (SCZ) is a severe psychiatric disorder that has a significant genetic component. HSPB1 (HSP27) is known for its neuroprotective functions under stress conditions and appears to play an important role during the development of the central nervous system, which is in agreement with the neurodevelopmental hypothesis of SCZ. The aim of the present case-control study was to investigate whether HSPB1 variants contribute to the risk and clinical features (age of onset, symptoms, and suicidal behavior) of SCZ in a Polish population. To the best of our knowledge, this is the first study that investigated the association between the HSPB1 polymorphisms and SCZ. Three SNPs of HSPB1 (rs2868370, rs2868371, and rs7459185) were genotyped in a total of 1082 (403 patients and 679 controls) unrelated subjects using TaqMan assays. The results showed that the genotypes, alleles, and haplotypes of the three SNPs were not significantly different between the schizophrenic patients and healthy controls either in the overall analysis or in the gender-stratified analysis (all p > 0.05). However, we did find a significant effect of the rs2868371 genotype on the age of onset, negative symptoms, and disorganized symptoms in the five-factor model of PANSS (all p < 0.01). Post hoc comparisons showed that carriers of the rs2868371 G/G genotype had significantly higher negative and disorganized factor scores than those with the C/G and C/C genotypes, respectively. Further investigations with other larger independent samples are required to confirm our findings and to better explore the effect of the HSPB1 polymorphisms on the risk and symptomatology of SCZ.
Collapse
|
13
|
Ding Y, Zhang Y, Zhang X, Chen P, Zhang Z, Yang Y, Cheng L, Mu C, Wang M, Xiang D, Wu G, Zhou K, Yuan Z, Liu Q. Engineering Spiking Neurons Using Threshold Switching Devices for High-Efficient Neuromorphic Computing. Front Neurosci 2022; 15:786694. [PMID: 35069102 PMCID: PMC8766734 DOI: 10.3389/fnins.2021.786694] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/23/2021] [Indexed: 12/02/2022] Open
Abstract
Inspired by the human brain, the spike-based neuromorphic system has attracted strong research enthusiasm because of the high energy efficiency and powerful computational capability, in which the spiking neurons and plastic synapses are two fundamental building blocks. Recently, two-terminal threshold switching (TS) devices have been regarded as promising candidates for building spiking neurons in hardware. However, how circuit parameters affect the spiking behavior of TS-based neurons is still an open question. Here, based on a leaky integrate-and-fire (LIF) neuron circuit, we systematically study the effect of both the extrinsic and intrinsic factors of NbO x -based TS neurons on their spiking behaviors. The extrinsic influence factors contain input intensities, connected synaptic weights, and parallel capacitances. To illustrate the effect of intrinsic factors, including the threshold voltage, holding voltage, and high/low resistance states of NbO x devices, we propose an empirical model of the fabricated NbO x devices, fitting well with the experimental results. The results indicate that with enhancing the input intensity, the spiking frequency increases first then decreases after reaching a peak value. Except for the connected synaptic weights, all other parameters can modulate the spiking peak frequency under high enough input intensity. Also, the relationship between energy consumption per spike and frequency of the neuron cell is further studied, leading guidance to design neuron circuits in a system to obtain the lowest energy consumption. At last, to demonstrate the practical applications of TS-based neurons, we construct a spiking neural network (SNN) to control the cart-pole using reinforcement learning, obtaining a reward score up to 450. This work provides valuable guidance on building compact LIF neurons based on TS devices and further bolsters the construction of high-efficiency neuromorphic systems.
Collapse
Affiliation(s)
- Yanting Ding
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
| | - Yajun Zhang
- Department of Physics, Center for Advanced Quantum Studies, Beijing Normal University, Beijing, China
| | - Xumeng Zhang
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Pei Chen
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China
| | - Zefeng Zhang
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
| | - Yue Yang
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China
| | - Lingli Cheng
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China
| | - Chen Mu
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
| | - Ming Wang
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Du Xiang
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Guangjian Wu
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Keji Zhou
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Zhe Yuan
- Department of Physics, Center for Advanced Quantum Studies, Beijing Normal University, Beijing, China
| | - Qi Liu
- Frontier Institute of Chip and System, Fudan University, Shanghai, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| |
Collapse
|
14
|
Zhao R, Ma X, Bai L, Li X, Mamouni K, Yang Y, Liu H, Danaher A, Cook N, Kucuk O, Hodges RS, Gera L, Wu D. Overcoming prostate cancer drug resistance with a novel organosilicon small molecule. Neoplasia 2021; 23:1261-1274. [PMID: 34781084 PMCID: PMC8604682 DOI: 10.1016/j.neo.2021.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 10/06/2021] [Accepted: 11/04/2021] [Indexed: 12/25/2022]
Abstract
A major challenge to the treatment of advanced prostate cancer (PCa) is the development of resistance to androgen-deprivation therapy (ADT) and chemotherapy. It is imperative to discover effective therapies to overcome drug resistance and improve clinical outcomes. We have developed a novel class of silicon-containing compounds and evaluated the anticancer activities and mechanism of action using cellular and animal models of drug-resistant PCa. Five organosilicon compounds were evaluated for their anticancer activities in the NCI-60 panel and established drug-resistant PCa cell lines. GH1504 exhibited potent in vitro cytotoxicity in a broad spectrum of human cancer cells, including PCa cells refractory to ADT and chemotherapy. Molecular studies identified several potential targets of GH1504, most notably androgen receptor (AR), AR variant 7 (AR-v7) and survivin. Mechanistically, GH1504 may promote the protein turnover of AR, AR-v7 and survivin, thereby inducing apoptosis in ADT-resistant and chemoresistant PCa cells. Animal studies demonstrated that GH1504 effectively inhibited the in vivo growth of ADT-resistant CWR22Rv1 and chemoresistant C4-2B-TaxR xenografts in subcutaneous and intraosseous models. These preclinical results indicated that GH1504 is a promising lead that can be further developed as a novel therapy for drug-resistant PCa.
Collapse
Affiliation(s)
- Rui Zhao
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China; Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Xiaowei Ma
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Clinical Laboratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lijuan Bai
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xin Li
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA; Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, GA, USA
| | - Kenza Mamouni
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yang Yang
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - HongYan Liu
- Dotquant LLC, CoMotion Labs at University of Washington, Seattle, WA, USA
| | - Alira Danaher
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, GA, USA
| | - Nicholas Cook
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, GA, USA
| | - Omer Kucuk
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA; Department of Urology, Emory University School of Medicine, Atlanta, GA, USA
| | - Robert S Hodges
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Anschutz Medical Campus, School of Medicine, Aurora, CO, USA; AMP Discovery LLC, Aurora, CO, USA
| | - Lajos Gera
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Anschutz Medical Campus, School of Medicine, Aurora, CO, USA; AMP Discovery LLC, Aurora, CO, USA
| | - Daqing Wu
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA; Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, GA, USA; Department of Urology, Emory University School of Medicine, Atlanta, GA, USA; MetCure Therapeutics LLC, Atlanta, GA, USA.
| |
Collapse
|
15
|
Pasten C, Lozano M, Rocco J, Carrión F, Alvarado C, Liberona J, Michea L, Irarrázabal CE. Aminoguanidine Prevents the Oxidative Stress, Inhibiting Elements of Inflammation, Endothelial Activation, Mesenchymal Markers, and Confers a Renoprotective Effect in Renal Ischemia and Reperfusion Injury. Antioxidants (Basel) 2021; 10:antiox10111724. [PMID: 34829595 PMCID: PMC8614713 DOI: 10.3390/antiox10111724] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/02/2021] [Accepted: 10/06/2021] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress produces macromolecules dysfunction and cellular damage. Renal ischemia-reperfusion injury (IRI) induces oxidative stress, inflammation, epithelium and endothelium damage, and cessation of renal function. The IRI is an inevitable process during kidney transplantation. Preliminary studies suggest that aminoguanidine (AG) is an antioxidant compound. In this study, we investigated the antioxidant effects of AG (50 mg/kg, intraperitoneal) and its association with molecular pathways activated by IRI (30 min/48 h) in the kidney. The antioxidant effect of AG was studied measuring GSSH/GSSG ratio, GST activity, lipoperoxidation, iNOS, and Hsp27 levels. In addition, we examined the effect of AG on elements associated with cell survival, inflammation, endothelium, and mesenchymal transition during IRI. AG prevented lipid peroxidation, increased GSH levels, and recovered the GST activity impaired by IRI. AG was associated with inhibition of iNOS, Hsp27, endothelial activation (VE-cadherin, PECAM), mesenchymal markers (vimentin, fascin, and HSP47), and inflammation (IL-1β, IL-6, Foxp3, and IL-10) upregulation. In addition, AG reduced kidney injury (NGAL, clusterin, Arg-2, and TFG-β1) and improved kidney function (glomerular filtration rate) during IRI. In conclusion, we found new evidence of the antioxidant properties of AG as a renoprotective compound during IRI. Therefore, AG is a promising compound to treat the deleterious effect of renal IRI.
Collapse
Affiliation(s)
- Consuelo Pasten
- Laboratorio de Fisiología Integrativa y Molecular, Programa de Fisiología, Centro de Investigación e Innovación Biomédica, Universidad de los Andes, Santiago 7620157, Chile; (C.P.); (M.L.); (J.R.)
- Facultad de Medicina, Universidad de los Andes, Santiago 7620157, Chile
| | - Mauricio Lozano
- Laboratorio de Fisiología Integrativa y Molecular, Programa de Fisiología, Centro de Investigación e Innovación Biomédica, Universidad de los Andes, Santiago 7620157, Chile; (C.P.); (M.L.); (J.R.)
| | - Jocelyn Rocco
- Laboratorio de Fisiología Integrativa y Molecular, Programa de Fisiología, Centro de Investigación e Innovación Biomédica, Universidad de los Andes, Santiago 7620157, Chile; (C.P.); (M.L.); (J.R.)
| | - Flavio Carrión
- Facultad de Ciencias de la Salud, Universidad del Alba, Santiago 7620157, Chile;
| | - Cristobal Alvarado
- Clinical Research Unit, Hospital Las Higueras, Talcahuano 4260000, Chile;
- Department of Basic Sciences, School of Medicine, Universidad Católica de la Santísima Concepción, Concepción 4030000, Chile
| | - Jéssica Liberona
- Instituto de Ciencias Biomédicas, School of Medicine, Universidad de Chile, Santiago 7620157, Chile; (J.L.); (L.M.)
| | - Luis Michea
- Instituto de Ciencias Biomédicas, School of Medicine, Universidad de Chile, Santiago 7620157, Chile; (J.L.); (L.M.)
- Millennium Institute on Immunology and Immunotheraphy, Santiago 762015, Chile
| | - Carlos E. Irarrázabal
- Laboratorio de Fisiología Integrativa y Molecular, Programa de Fisiología, Centro de Investigación e Innovación Biomédica, Universidad de los Andes, Santiago 7620157, Chile; (C.P.); (M.L.); (J.R.)
- Facultad de Medicina, Universidad de los Andes, Santiago 7620157, Chile
- Correspondence: ; Tel.: +56-2-4129607
| |
Collapse
|
16
|
Hazer Rosberg DB, Hazer B, Stenberg L, Dahlin LB. Gold and Cobalt Oxide Nanoparticles Modified Poly-Propylene Poly-Ethylene Glycol Membranes in Poly (ε-Caprolactone) Conduits Enhance Nerve Regeneration in the Sciatic Nerve of Healthy Rats. Int J Mol Sci 2021; 22:7146. [PMID: 34281198 PMCID: PMC8268459 DOI: 10.3390/ijms22137146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of nerve defects is a clinical challenge. Autologous nerve grafts as the gold standard treatment may result in an incomplete restoration of extremity function. Biosynthetic nerve conduits are studied widely, but still have limitations. Here, we reconstructed a 10 mm sciatic nerve defect in healthy rats and analyzed nerve regeneration in poly (ε-caprolactone) (PCL) conduits longitudinally divided by gold (Au) and gold-cobalt oxide (AuCoO) nanoparticles embedded in poly-propylene poly-ethylene glycol (PPEG) membranes (AuPPEG or AuCoOPPEG) and compared it with unmodified PPEG-membrane and hollow PCL conduits. After 21 days, we detected significantly better axonal outgrowth, together with higher numbers of activated Schwann cells (ATF3-labelled) and higher HSP27 expression, in reconstructed sciatic nerve and in corresponding dorsal root ganglia (DRG) in the AuPPEG and AuCoOPPEG groups; whereas the number of apoptotic Schwann cells (cleaved caspase 3-labelled) was significantly lower. Furthermore, numbers of activated and apoptotic Schwann cells in the regenerative matrix correlated with axonal outgrowth, whereas HSP27 expression in the regenerative matrix and in DRGs did not show any correlation with axonal outgrowth. We conclude that gold and cobalt-oxide nanoparticle modified membranes in conduits improve axonal outgrowth and increase the regenerative performance of conduits after nerve reconstruction.
Collapse
Affiliation(s)
- Derya Burcu Hazer Rosberg
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
- Department of Neurosurgery, Mugla Sitki Kocman University, Mugla 48100, Turkey
| | - Baki Hazer
- Department of Aircraft Airflame Engine Maintenance, Kapadokya University, Ürgüp 50420, Turkey;
- Department of Chemistry, Zonguldak Bülent Ecevit University, Zonguldak 67100, Turkey
| | - Lena Stenberg
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
| | - Lars B. Dahlin
- Department of Hand Surgery, Skåne University Hospital, 205 02 Malmö, Sweden; (L.S.); (L.B.D.)
- Department of Translational Medicine—Hand Surgery, Lund University, 205 02 Malmö, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, 581 83 Linköping, Sweden
| |
Collapse
|
17
|
Vahidinia Z, Mahdavi E, Talaei SA, Naderian H, Tamtaji A, Haddad Kashani H, Beyer C, Azami Tameh A. The effect of female sex hormones on Hsp27 phosphorylation and histological changes in prefrontal cortex after tMCAO. Pathol Res Pract 2021; 221:153415. [PMID: 33857717 DOI: 10.1016/j.prp.2021.153415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/13/2021] [Accepted: 03/20/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Female sex hormones are protective factors against many neurological disorders such as brain ischemia. Heat shock protein like HSP27 is activated after tissue injury. The main purpose of the present study is to determine the effect of a combined estrogen / progesterone cocktail on the morphology of astrocytes, neurons and Hsp27 phosphorylation after cerebral ischemia. METHODS One hour after the MCAO induction, a single dose of estrogen and progesterone was injected. The infarct volume was calculated by TTC staining 24 h after ischemia. Immunohistochemistry was used to show the effects of estrogen and progesterone on astrocyte and neuron morphology, as well as the Western blot technique used for the quantitation of phosphorylated Hsp27. RESULTS The combined dose of estrogen and progesterone significantly decreased astrocytosis after ischemia and increased neuron survival. There was a large increase in Hsp27 phosphorylation in the penumbra ischemic region after stroke, which was significantly reduced by hormone therapy. CONCLUSION Our results indicate that the neuroprotective effect of neurosteroids in the brain may be due to the modulation of heat shock proteins.
Collapse
Affiliation(s)
- Zeinab Vahidinia
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Elham Mahdavi
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Homayoun Naderian
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Aboutaleb Tamtaji
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Haddad Kashani
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Cordian Beyer
- Institute of Neuroanatomy, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Abolfazl Azami Tameh
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| |
Collapse
|
18
|
Latham LE, Wang C, Patterson TA, Slikker W, Liu F. Neuroprotective Effects of Carnitine and Its Potential Application to Ameliorate Neurotoxicity. Chem Res Toxicol 2021; 34:1208-1222. [PMID: 33570912 DOI: 10.1021/acs.chemrestox.0c00479] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Carnitine is an essential metabolite that is absorbed from the diet and synthesized in the kidney, liver, and brain. It ferries fatty acids across the mitochondrial membrane to undergo β-oxidation. Carnitine has been studied as a therapy or protective agent for many neurological diseases and neurotoxicity (e.g., prolonged anesthetic exposure-induced developmental neurotoxicity in preclinical models). Preclinical and clinical data support the notion that carnitine or acetyl carnitine may improve a patient's quality of life through increased mitochondrial respiration, release of neurotransmitters, and global gene expression changes, showing the potential of carnitine beyond its approved use to treat primary and secondary carnitine deficiency. In this review, we summarize the beneficial effects of carnitine or acetyl carnitine on the central nervous system, highlighting protective effects against neurotoxicity-induced damage caused by various chemicals and encouraging a thorough evaluation of carnitine use as a therapy for patients suffering from neurotoxicant exposure.
Collapse
Affiliation(s)
- Leah E Latham
- Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079, United States
| | - Cheng Wang
- Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079, United States
| | - Tucker A Patterson
- Office of Director, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079, United States
| | - William Slikker
- Office of Director, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079, United States
| | - Fang Liu
- Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, Arkansas 72079, United States
| |
Collapse
|
19
|
Drastichova Z, Rudajev V, Pallag G, Novotny J. Proteome profiling of different rat brain regions reveals the modulatory effect of prolonged maternal separation on proteins involved in cell death-related processes. Biol Res 2021; 54:4. [PMID: 33557947 PMCID: PMC7871601 DOI: 10.1186/s40659-021-00327-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/25/2021] [Indexed: 01/08/2023] Open
Abstract
Background Early-life stress in the form of maternal separation can be associated with alterations in offspring neurodevelopment and brain functioning. Here, we aimed to investigate the potential impact of prolonged maternal separation on proteomic profiling of prefrontal cortex, hippocampus and cerebellum of juvenile and young adult rats. A special attention was devoted to proteins involved in the process of cell death and redox state maintenance. Methods Long-Evans pups were separated from their mothers for 3 h daily over the first 3 weeks of life (during days 2–21 of age). Brain tissue samples collected from juvenile (22-day-old) and young adult (90-day-old) rats were used for label-free quantitative (LFQ) proteomic analysis. In parallel, selected oxidative stress markers and apoptosis-related proteins were assessed biochemically and by Western blot, respectively. Results In total, 5526 proteins were detected in our proteomic analysis of rat brain tissue. Approximately one tenth of them (586 proteins) represented those involved in cell death processes or regulation of oxidative stress balance. Prolonged maternal separation caused changes in less than half of these proteins (271). The observed alterations in protein expression levels were age-, sex- and brain region-dependent. Interestingly, the proteins detected by mass spectrometry that are known to be involved in the maintenance of redox state were not markedly altered. Accordingly, we did not observe any significant differences between selected oxidative stress markers, such as the levels of hydrogen peroxide, reduced glutathione, protein carbonylation and lipid peroxidation in brain samples from rats that underwent maternal separation and from the corresponding controls. On the other hand, a number of changes were found in cell death-associated proteins, mainly in those involved in the apoptotic and autophagic pathways. However, there were no detectable alterations in the levels of cleaved products of caspases or Bcl-2 family members. Taken together, these data indicate that the apoptotic and autophagic cell death pathways were not activated by maternal separation either in adolescent or young adult rats. Conclusion Prolonged maternal separation can distinctly modulate expression profiles of proteins associated with cell death pathways in prefrontal cortex, hippocampus and cerebellum of juvenile rats and the consequences of early-life stress may last into adulthood and likely participate in variations in stress reactivity. Supplementary Information The online version contains supplementary material available at 10.1186/s40659-021-00327-5.
Collapse
Affiliation(s)
- Zdenka Drastichova
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Vladimir Rudajev
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Gergely Pallag
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jiri Novotny
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic.
| |
Collapse
|
20
|
Dukay B, Walter FR, Vigh JP, Barabási B, Hajdu P, Balassa T, Migh E, Kincses A, Hoyk Z, Szögi T, Borbély E, Csoboz B, Horváth P, Fülöp L, Penke B, Vígh L, Deli MA, Sántha M, Tóth ME. Neuroinflammatory processes are augmented in mice overexpressing human heat-shock protein B1 following ethanol-induced brain injury. J Neuroinflammation 2021; 18:22. [PMID: 33423680 PMCID: PMC7798334 DOI: 10.1186/s12974-020-02070-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/30/2020] [Indexed: 12/27/2022] Open
Abstract
Background Heat-shock protein B1 (HSPB1) is among the most well-known and versatile member of the evolutionarily conserved family of small heat-shock proteins. It has been implicated to serve a neuroprotective role against various neurological disorders via its modulatory activity on inflammation, yet its exact role in neuroinflammation is poorly understood. In order to shed light on the exact mechanism of inflammation modulation by HSPB1, we investigated the effect of HSPB1 on neuroinflammatory processes in an in vivo and in vitro model of acute brain injury. Methods In this study, we used a transgenic mouse strain overexpressing the human HSPB1 protein. In the in vivo experiments, 7-day-old transgenic and wild-type mice were treated with ethanol. Apoptotic cells were detected using TUNEL assay. The mRNA and protein levels of cytokines and glial cell markers were examined using RT-PCR and immunohistochemistry in the brain. We also established primary neuronal, astrocyte, and microglial cultures which were subjected to cytokine and ethanol treatments. TNFα and hHSPB1 levels were measured from the supernates by ELISA, and intracellular hHSPB1 expression was analyzed using fluorescent immunohistochemistry. Results Following ethanol treatment, the brains of hHSPB1-overexpressing mice showed a significantly higher mRNA level of pro-inflammatory cytokines (Tnf, Il1b), microglia (Cd68, Arg1), and astrocyte (Gfap) markers compared to wild-type brains. Microglial activation, and 1 week later, reactive astrogliosis was higher in certain brain areas of ethanol-treated transgenic mice compared to those of wild-types. Despite the remarkably high expression of pro-apoptotic Tnf, hHSPB1-overexpressing mice did not exhibit higher level of apoptosis. Our data suggest that intracellular hHSPB1, showing the highest level in primary astrocytes, was responsible for the inflammation-regulating effects. Microglia cells were the main source of TNFα in our model. Microglia isolated from hHSPB1-overexpressing mice showed a significantly higher release of TNFα compared to wild-type cells under inflammatory conditions. Conclusions Our work provides novel in vivo evidence that hHSPB1 overexpression has a regulating effect on acute neuroinflammation by intensifying the expression of pro-inflammatory cytokines and enhancing glial cell activation, but not increasing neuronal apoptosis. These results suggest that hHSPB1 may play a complex role in the modulation of the ethanol-induced neuroinflammatory response. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-020-02070-2.
Collapse
Affiliation(s)
- Brigitta Dukay
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary. .,Doctoral School in Biology, University of Szeged, Szeged, Hungary.
| | - Fruzsina R Walter
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Judit P Vigh
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Beáta Barabási
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary.,Doctoral School in Theoretical Medicine, University of Szeged, Szeged, Hungary
| | - Petra Hajdu
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary
| | - Tamás Balassa
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary.,Doctoral School of Informatics, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Ede Migh
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary
| | - András Kincses
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Zsófia Hoyk
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Titanilla Szögi
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Emőke Borbély
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Bálint Csoboz
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary.,Institute of Medical Biology, University of Tromsø, Tromsø, Norway
| | - Péter Horváth
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary.,Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Lívia Fülöp
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Botond Penke
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - László Vígh
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary
| | - Mária A Deli
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Miklós Sántha
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary
| | - Melinda E Tóth
- Institute of Biochemistry, Biological Research Centre, Temesvári krt. 62, Szeged, H-6726, Hungary.
| |
Collapse
|
21
|
Chaudhury S, Keegan BM, Blagg BSJ. The role and therapeutic potential of Hsp90, Hsp70, and smaller heat shock proteins in peripheral and central neuropathies. Med Res Rev 2021; 41:202-222. [PMID: 32844464 PMCID: PMC8485878 DOI: 10.1002/med.21729] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/16/2022]
Abstract
Heat shock proteins (Hsps) are molecular chaperones that also play important roles in the activation of the heat shock response (HSR). The HSR is an evolutionary conserved and protective mechanism that is used to counter abnormal physiological conditions, stressors, and disease states, such as those exemplified in cancer and/or neurodegeneration. In normal cells, heat shock factor-1 (HSF-1), the transcription factor that regulates the HSR, remains in a dormant multiprotein complex that is formed upon association with chaperones (Hsp90, Hsp70, etc.), co-chaperones, and client proteins. However, under cellular stress, HSF-1 dissociates from Hsp90 and induces the transcriptional upregulation of Hsp70 to afford protection against the encountered cellular stress. As a consequence of both peripheral and central neuropathies, cellular stress occurs and results in the accumulation of unfolded and/or misfolded proteins, which can be counterbalanced by activation of the HSR. Since Hsp90 is the primary regulator of the HSR, modulation of Hsp90 by small molecules represents an attractive therapeutic approach against both peripheral and central neuropathies.
Collapse
Affiliation(s)
- Subhabrata Chaudhury
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, Indiana, USA
| | - Bradley M Keegan
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, Indiana, USA
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, Indiana, USA
| |
Collapse
|
22
|
Bathini M, Raghushaker CR, Mahato KK. The Molecular Mechanisms of Action of Photobiomodulation Against Neurodegenerative Diseases: A Systematic Review. Cell Mol Neurobiol 2020; 42:955-971. [PMID: 33301129 PMCID: PMC8942959 DOI: 10.1007/s10571-020-01016-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 11/18/2020] [Indexed: 01/08/2023]
Abstract
Neurodegenerative diseases might be slow but relentless, as we continue to fail in treating or delaying their progression. Given the complexity in the pathogenesis of these diseases, a broad-acting approach like photobiomodulation can prove promising. Photobiomodulation (PBM) uses red and infrared light for therapeutic benefits, working by stimulating growth and proliferation. The implications of photobiomodulation have been studied in several neurodegenerative disease models. It has been shown to improve cell survival, decrease apoptosis, alleviate oxidative stress, suppress inflammation, and rescue mitochondrial function. In in vivo models, it has reportedly preserved motor and cognitive skills. Beyond mitochondrial stimulation, the molecular mechanisms by which photobiomodulation protects against neurodegeneration have not been very well studied. This review has systematically been undertaken to study the effects of photobiomodulation at a molecular level and identify the different biochemical pathways and molecular changes in the process. The data showed the involvement of pathways like extracellular signal-regulated kinase (ERK), mitogen-activated protein kinase (MAPK), and protein kinase B (Akt). In addition, the expression of several genes and proteins playing different roles in the disease mechanisms was found to be influenced by PBM, such as neurotrophic factors and secretases. Studying the literature indicated that PBM can be translated to a potential therapeutic tool, acting through a spectrum of mechanisms that work together to decelerate disease progression in the organism, which is difficult to achieve through pharmacological interventions.
Collapse
Affiliation(s)
- Mayukha Bathini
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Chandavalli Ramappa Raghushaker
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Krishna Kishore Mahato
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
| |
Collapse
|
23
|
Martínez-Laorden E, Navarro-Zaragoza J, Milanés MV, Laorden ML, Almela P. Cardiac Protective Role of Heat Shock Protein 27 in the Stress Induced by Drugs of Abuse. Int J Mol Sci 2020; 21:E3623. [PMID: 32455528 PMCID: PMC7279295 DOI: 10.3390/ijms21103623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 11/16/2022] Open
Abstract
Heat shock proteins (HSP) are induced after different stress situations. Some of these proteins, particularly HSP-27, function as markers to indicate cellular stress or damage and protect the heart during addictive processes. Morphine withdrawal induces an enhancement of sympathetic activity in parallel with an increased HSP-27 expression and phosphorylation, indicating a severe situation of stress. HSP-27 can interact with different intracellular signaling pathways. Propranolol and SL-327 were able to antagonize the activation of hypothalamic-pituitary adrenal (HPA) axis and the phosphorylation of HSP-27 observed during morphine withdrawal. Therefore, β-adrenergic receptors and the extracellular signal-regulated kinase (ERK) pathway would be involved in HPA axis activity, and consequently, in HSP-27 activation. Finally, selective blockade of corticotrophin releasing factor (CRF)-1 receptor and the genetic deletion of CRF1 receptors antagonize cardiac adaptive changes. These changes are increased noradrenaline (NA) turnover, HPA axis activation and decreased HSP-27 expression and phosphorylation. This suggests a link between the HPA axis and HSP-27. On the other hand, morphine withdrawal increases µ-calpain expression, which in turn degrades cardiac troponin T (cTnT). This fact, together with a co-localization between cTnT and HSP-27, suggests that this chaperone avoids the degradation of cTnT by µ-calpain, correcting the cardiac contractility abnormalities observed during addictive processes. The aim of our research is to review the possible role of HSP-27 in the cardiac changes observed during morphine withdrawal and to understand the mechanisms implicated in its cardiac protective functions.
Collapse
Affiliation(s)
| | - Javier Navarro-Zaragoza
- Department of Pharmacology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain; (E.M.-L.); (M.V.M.); (M.L.L.); (P.A.)
| | | | | | | |
Collapse
|
24
|
An artificial spiking afferent nerve based on Mott memristors for neurorobotics. Nat Commun 2020; 11:51. [PMID: 31896758 PMCID: PMC6940364 DOI: 10.1038/s41467-019-13827-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/26/2019] [Indexed: 01/19/2023] Open
Abstract
Neuromorphic computing based on spikes offers great potential in highly efficient computing paradigms. Recently, several hardware implementations of spiking neural networks based on traditional complementary metal-oxide semiconductor technology or memristors have been developed. However, an interface (called an afferent nerve in biology) with the environment, which converts the analog signal from sensors into spikes in spiking neural networks, is yet to be demonstrated. Here we propose and experimentally demonstrate an artificial spiking afferent nerve based on highly reliable NbOx Mott memristors for the first time. The spiking frequency of the afferent nerve is proportional to the stimuli intensity before encountering noxiously high stimuli, and then starts to reduce the spiking frequency at an inflection point. Using this afferent nerve, we further build a power-free spiking mechanoreceptor system with a passive piezoelectric device as the tactile sensor. The experimental results indicate that our afferent nerve is promising for constructing self-aware neurorobotics in the future. Though artificial sensory systems based on electronic devices have been realized, further transformation of data into spikes is required for neural network optimization. Here, based on NbOx Mott memristors, the authors report artificial spiking afferent nerves for accessing spiking systems and demonstrate spiking mechanoreceptor systems.
Collapse
|
25
|
Pandey M, Nabi J, Tabassum N, Pottoo FH, Khatik R, Ahmad N. Molecular Chaperones in Neurodegeneration. QUALITY CONTROL OF CELLULAR PROTEIN IN NEURODEGENERATIVE DISORDERS 2020. [DOI: 10.4018/978-1-7998-1317-0.ch014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cellular chaperones are essential players to this protein quality control network that functions to prevent protein misfolding, refold misfolded proteins, or degrade them, thereby maintaining neuronal proteostasis. Moreover, overexpression of cellular chaperones is considered to inhibit protein aggregation and apoptosis in various experimental models of neurodegeneration. Alterations or downregulation of chaperone machinery by age-related decline, molecular crowding, or genetic mutations are regarded as key pathological hallmarks of neurodegenerative disorders like Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), and Prion diseases. Therefore, chaperones may serve as potential therapeutic targets in these diseases. This chapter presents a generalized view of misfolding and aggregation of proteins in neurodegeneration and then critically analyses some of the known cellular chaperones and their role in several neurodegenerative disorders.
Collapse
Affiliation(s)
- Mukesh Pandey
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, India
| | - Jahangir Nabi
- Department of Pharmaceutical Sciences (Pharmacology Division), Faculty of Applied Sciences and Technology, University of Kashmir, Srinagar, India
| | - Nahida Tabassum
- Department of Pharmaceutical Sciences (Pharmacology Division), Faculty of Applied Sciences and Technology, University of Kashmir, Srinagar, India
| | - Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Saudi Arabia
| | - Renuka Khatik
- Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, China
| | - Niyaz Ahmad
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdul Rahman Bin Faisal University, Saudi Arabia
| |
Collapse
|
26
|
Almela P, Cuenca-Bermejo L, Yuste JE, Estrada C, de Pablos V, Bautista-Hernández V, Fernández-Villalba E, Laorden ML, Herrero MT. Cardiac Noradrenaline Turnover and Heat Shock Protein 27 Phosphorylation in Dyskinetic Monkeys. Mov Disord 2019; 35:698-703. [PMID: 31872915 DOI: 10.1002/mds.27958] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Autonomic dysfunction is a well-known dominant symptom in the advanced stages of Parkinson's disease. However, the role of cardiac sympathetic nerves still needs to be elucidated. OBJECTIVES To evaluate cardiac sympathetic response in Parkinsonian and dyskinetic monkeys. METHODS Adult male monkeys were divided into 1 of the following 3 groups: controls, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-treated monkeys, and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine+levodopa-treated animals. Noradrenaline, its metabolite normetanephrine, and phospho-Heat shock proten 27 (p-Hsp27) at serine 82 levels were analyzed in the left and right ventricles of the heart. Tyrosine hydroxylase immunohistochemistry was performed in the ventral mesencephalon. RESULTS The results were the following: (1) 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine intoxication significantly increased normetanephrine levels and decreased noradrenaline turnover in the right ventricle without changes in the left ventricle; however, (2) levodopa treatment decreased noradrenaline levels and enhanced the normetanephrine/noradrenaline ratio in parallel with a very significant increase of Hsp27 activity in both ventricles. CONCLUSIONS Levodopa treatment could induce protective cardiac effects through the increased Hsp27 activity. © 2019 International Parkinson and Movement Disorder Society.
Collapse
Affiliation(s)
- Pilar Almela
- Department of Pharmacology, School of Medicine, University of Murcia, Murcia, Spain.,Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España
| | - Lorena Cuenca-Bermejo
- Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - José E Yuste
- Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - Cristina Estrada
- Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - Vicente de Pablos
- Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - Víctor Bautista-Hernández
- Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain.,Department of Cardiovascular Surgery, Integrated Management Area of A Coruña, La Coruña, Spain
| | - Emiliano Fernández-Villalba
- Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - María-Luisa Laorden
- Department of Pharmacology, School of Medicine, University of Murcia, Murcia, Spain.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| | - María-Trinidad Herrero
- Institute of Biomedical Research of Murcia (IMIB), Campus de Ciencias de la Salud, Carretera Buenavista s/n, 30120 El Palmar, Murcia, España.,Clinical & Experimental Neuroscience, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain
| |
Collapse
|
27
|
Behdarvandy M, Karimian M, Atlasi MA, Azami Tameh A. Heat shock protein 27 as a neuroprotective biomarker and a suitable target for stem cell therapy and pharmacotherapy in ischemic stroke. Cell Biol Int 2019; 44:356-367. [PMID: 31502740 DOI: 10.1002/cbin.11237] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 09/08/2019] [Indexed: 12/12/2022]
Abstract
Ischemic stroke is a major common cause of death and long-term disability worldwide. Several pathophysiological events including excitotoxicity, oxidative/nitrative stress, inflammation, and apoptosis are involved in ischemic injuries. Recently, the molecular mechanisms involved in cerebral ischemia through a focus on a member of small heat shock proteins family, Hsp27, has been developed. Notably, following exposure to ischemia, Hsp27 expression in the brain could be increased rather than the normal condition and it may play an important role in neuroprotection after ischemic stroke. The neuroprotection effects of Hsp27 may arise from its anti-oxidant, anti-inflammatory, anti-apoptotic, and chaperonic properties. Moreover, some therapeutic strategies such as stem cell therapy and pharmacotherapy have been developed with Hsp27 targeting. In this review, we describe the function and structure of Hsp27 and its possible role in neuroprotection after ischemic stroke. Finally, we present current studies in stroke therapy, which focused on Hsp27 targeting.
Collapse
Affiliation(s)
- Marjan Behdarvandy
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Qotb-e Ravandi Blvd., 8715988141, Kashan, Iran
| | - Mohammad Karimian
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Qotb-e Ravandi Blvd., 8715988141, Kashan, Iran
| | - Mohammad Ali Atlasi
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Qotb-e Ravandi Blvd., 8715988141, Kashan, Iran
| | - Abolfazl Azami Tameh
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Qotb-e Ravandi Blvd., 8715988141, Kashan, Iran
| |
Collapse
|
28
|
Chen VCH, Chiu CC, Weng JC, Chen LJ, Siow JY, Hsu TC, Tzang BS. Taurine reduces hyperactive behavior in SHR rats through upregulating the proportion of CD4+CD25+Foxp3+ regulatory T cells. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.03.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
29
|
Shokrollahi E, Nourazarian A, Rahbarghazi R, Salimi L, Karbasforush S, Khaksar M, Salarinasab S, Abhari A, Heidarzadeh M. Treatment of human neuroblastoma cell line SH-SY5Y with HSP27 siRNA tagged-exosomes decreased differentiation rate into mature neurons. J Cell Physiol 2019; 234:21005-21013. [PMID: 31012118 DOI: 10.1002/jcp.28704] [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] [Received: 09/30/2018] [Revised: 03/27/2019] [Accepted: 04/10/2019] [Indexed: 12/15/2022]
Abstract
Heat shock proteins (HSPs) participate in the regulation of different cell activities in response to stimuli. By applying different strategies, the modulation of heat shock proteins is at the center of attention. Conventional delivery approaches are not fully encouraged due to cytotoxicity and immunogenicity issues. Exosomes are touted as bio-shuttles for delivery of distinct biomolecules inside the cells. Here, we aimed to HSP27 small interfering RNA (siRNA)-tagged exosomes for the inhibition of Hsp27 in human neuroblastoma cell line SH-SY5Y and explored differentiation into neuron-like cells. Exosomes were isolated, characterized by scanning electron microscope (SEM) and CD63 then enriched with siRNA against Hsp27. Neuroblastoma cells were incubated with exosomes carrying siRNA for 48 hr. Exosome uptake was monitored by immunofluorescence assay. The cell viability and proliferation were analyzed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and bromodeoxyuridine/5-bromo-2'-deoxyuridine incorporation assays. The ability of cells to form colonies was evaluated by clonogenic assay. The cell potential to express NeuN, a mature neuron factor, was studied by flow cytometry analysis. SEM showed the nano-sized particles and a high level of CD63 after enrichment. Immunofluorescence imaging revealed an appropriate transfection rate in cell exposed to Hsp27 siRNA tagged exosomes. The cell viability and proliferation were reduced compared to cells received nude exosomes ( p < 0.05). Clonogenic activity of cells was diminished by the inhibition of Hsp27. Flow cytometry analysis revealed that the inhibition of Hsp27 prohibited NeuN content, showing the maturation of SH-SY5Y cells to mature cells compared to control. These data confirmed that exosomes could be used as appropriate bio-shuttles for the inhibition of Hsp27-aborted cell differentiation toward mature neuron.
Collapse
Affiliation(s)
- Elhameh Shokrollahi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Nourazarian
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Salimi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeede Karbasforush
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Khaksar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sadegh Salarinasab
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Abhari
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Heidarzadeh
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
30
|
Vexler ZS, Mallard C, Hagberg H. Positive and negative conditioning in the neonatal brain. CONDITIONING MEDICINE 2018; 1:279-293. [PMID: 31214666 PMCID: PMC6581457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Brain injury in the perinatal period occurs in many clinical settings, e.g. hypoxic-ischemic encephalopathy (HIE) in term infants, neonatal stroke, encephalopathy of prematurity, and infections. These insults often result in life-long disabilities including cerebral palsy, cognitive deficits, visual dysfunction, hearing impairments, and epilepsy. However, the success of clinical implementation of a broad array of potential neuroprotective strategies tested experimentally has been limited with the exception of therapeutic hypothermia (TH) used within hours of birth in term human babies with mild to moderate HIE. There is an extensive search for adjuvant therapeutic approaches to enhance the outcomes. One strategy is to modify susceptibility in the developing CNS by means of preconditioning or postconditioning using sublethal stress. The pre-clinical and clinical literature has shown that CNS immaturity at the time of ischemic insult plays a central role in the response to injury. Thus, better understanding of the molecular regulation of the endogenous vulnerability of the immature brain is needed. Further, the use of sublethal stressors of different origin may help shed light on mechanistic similarities and distinctions beween conditioning strategies. In this review we discuss the mechanisms of protection that are achieved by an interplay of changes on the systemic level and brain level, and via changes of intracellular and mitochondrial signaling. We also discuss the barriers to improving our understanding of how brain immaturity and the type of insult-hypoxic, ischemic or inflammatory-affect the efficacy of conditioning efforts in the immature brain.
Collapse
Affiliation(s)
- Zinaida S. Vexler
- Department of Neurology, University California San Francisco, San Francisco, California, USA
| | - Carina Mallard
- Center of Perinatal Medicine and Health, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Henrik Hagberg
- Center of Perinatal Medicine and Health, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden
| |
Collapse
|
31
|
Sec6 enhances cell migration and suppresses apoptosis by elevating the phosphorylation of p38 MAPK, MK2, and HSP27. Cell Signal 2018; 49:1-16. [DOI: 10.1016/j.cellsig.2018.04.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/27/2018] [Accepted: 04/30/2018] [Indexed: 11/20/2022]
|
32
|
The indole compound NC009-1 inhibits aggregation and promotes neurite outgrowth through enhancement of HSPB1 in SCA17 cells and ameliorates the behavioral deficits in SCA17 mice. Neurotoxicology 2018; 67:259-269. [PMID: 29936316 DOI: 10.1016/j.neuro.2018.06.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/14/2018] [Accepted: 06/14/2018] [Indexed: 12/18/2022]
Abstract
Spinocerebellar ataxia type 17 (SCA17) is caused by the expansion of translated CAG repeat in the TATA box binding protein (TBP) gene encoding a long polyglutamine (polyQ) tract in the TBP protein, which leads to intracellular accumulation of aggregated TBP and cell death. The molecular chaperones act in preventing protein aggregation to ameliorate downstream harmful events. In this study, we used Tet-On cells with inducible SCA17 TBP/Q79-GFP expression to test five in-house NC009 indole compounds for neuroprotection. We found that both aggregation and polyQ-induced reactive oxygen species can be significantly prohibited by the tested NC009 compounds in Tet-On TBP/Q79 293 cells. Among the five indole compounds, NC009-1 up-regulated expression of heat shock protein family B (small) member 1 (HSPB1) chaperone to reduce polyQ aggregation and promote neurite outgrowth in neuronal differentiated TBP/Q79 SH-SY5Y cells. The increased HSPB1 thus ameliorated the increased BH3 interacting domain death agonist (BID), cytochrome c (CYCS) release, and caspase 3 (CASP3) activation which result in apoptosis. Knock down of HSPB1 attenuated the effects of NC009-1 on TBP/Q79 SH-SY5Y cells, suggesting that HSPB1 might be one of the major pathways involved for NC009-1 effects. NC009-1 further reduced polyQ aggregation in Purkinje cells and ameliorated behavioral deficits in SCA17 TBP/Q109 transgenic mice. Our results suggest that NC009-1 has a neuroprotective effect on SCA17 cell and mouse models to support its therapeutic potential in SCA17 treatment.
Collapse
|
33
|
Twayana KS, Ravanan P. Eukaryotic cell survival mechanisms: Disease relevance and therapeutic intervention. Life Sci 2018; 205:73-90. [PMID: 29730169 DOI: 10.1016/j.lfs.2018.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/17/2018] [Accepted: 05/01/2018] [Indexed: 01/10/2023]
Abstract
Cell responds to stress by activating various modes of stress responses which aim for minimal damage to cells and speedy recovery from the insults. However, unresolved stresses exceeding the tolerance limit lead to cell death (apoptosis, autophagy etc.) that helps to get rid of damaged cells and protect cell integrity. Furthermore, aberrant stress responses are the hallmarks of several pathophysiologies (neurodegeneration, metabolic diseases, cancer etc.). The catastrophic remodulation of stress responses is observed in cancer cells in favor of their uncontrolled growth. Whereas pro-survival stress responses redirected to death signaling provokes excessive cell death in neurodegeneration. Clear understanding of such mechanistic link to disease progression is required in order to modulate these processes for new therapeutic targets. The current review explains this with respect to novel drug discoveries and other breakthroughs in therapeutics.
Collapse
Affiliation(s)
- Krishna Sundar Twayana
- Apoptosis and Cell Survival Research Laboratory, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu-632014, India
| | - Palaniyandi Ravanan
- Apoptosis and Cell Survival Research Laboratory, Department of Biosciences, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu-632014, India.
| |
Collapse
|
34
|
Sato SB, Sugiura M, Kurihara T. Dimer-monomer equilibrium of human HSP27 is influenced by the in-cell macromolecular crowding environment and is controlled by fatty acids and heat. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:692-701. [PMID: 29635040 DOI: 10.1016/j.bbapap.2018.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 12/23/2022]
Abstract
Small heat shock protein 27 (HSP27) is an essential element of the proteostasis network in human cells. The HSP27 monomer coexists with the dimer, which can bind unfolded client proteins. Here, we evaluated the in-cell dimer-monomer equilibrium and its relevance to the binding of client proteins in a normal human vascular endothelial cell line. When cells were treated with a membrane-permeable crosslinker, the protein existed primarily as a free monomer (27 kDa) with a markedly smaller percentage of dimer (54 kDa), hetero-conjugates, and minor smear-like bands. When the protein was crosslinked in a cell-free lysate, two of the hetero-conjugates that were crosslinked in live cells were also detected, but the dimer and other complexes were absent. However, when cells were pretreated with fatty acid (FA) and/or heat (42.5 °C), dissociation of the dimer was selectively prevented and two types of covalently linked dimers were increased. These changes occurred most prominently in cells treated with docosahexaenoic acid (DHA) and heat, which appeared to intensify the heat resistance of the cell. Both the formation of covalently linked dimers and heat resistance were prevented by N-acetylcysteine. By contrast, nearly all of the free monomers in the lysate converted to disulfide bond-linked dimers by a simple, long incubation at 4 °C. These results strongly suggest that the monomer-dimer equilibrium of HSP27 was inversed between the in-cell and cell-free systems. Temperature- and amphiphile-regulated dimerization was restricted probably due to the low hydration of the in-cell crowding environment.
Collapse
Affiliation(s)
- Satoshi B Sato
- Department of Biophysics, Division of Biological Science, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
| | - Miwa Sugiura
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tatsuo Kurihara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| |
Collapse
|
35
|
Liu L, An D, Xu J, Shao B, Li X, Shi J. Ac2-26 Induces IKKβ Degradation Through Chaperone-Mediated Autophagy Via HSPB1 in NCM-Treated Microglia. Front Mol Neurosci 2018; 11:76. [PMID: 29662435 PMCID: PMC5890123 DOI: 10.3389/fnmol.2018.00076] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/26/2018] [Indexed: 11/24/2022] Open
Abstract
Annexin A1 (ANXA1) is an endogenous protein with potent anti-inflammatory properties in the brain. Although ANXA1 has been predominantly studied for its binding to formyl peptide receptors (FPRs) on plasma membranes, little is known regarding whether this protein has an anti-inflammatory effect in the cytosol. Here, we investigated the mechanism by which the ANXA1 peptide Ac2-26 decreases high TNF-α production and IKKβ activity, which was caused by oxygen glucose deprivation/reperfusion (OGD/R)-induced neuronal conditioned medium (NCM) in microglia. We found that exogenous Ac2-26 crosses into the cytoplasm of microglia and inhibits both gene expression and protein secretion of TNF-α. Ac2-26 also causes a decrease in IKKβ protein but not IKKβ mRNA, and this effect is inverted by lysosome inhibitor NH4CL. Furthermore, we demonstrate that Ac2-26 induces IKKβ accumulation in lysosomes and that lysosomal-associated membrane protein 2A (LAMP-2A), not LC-3, is enhanced in microglia exposed to Ac2-26. We hypothesize that Ac2-26 mediates IKKβ degradation in lysosomes through chaperone-mediated autophagy (CMA). Interestingly, ANXA1 in the cytoplasm does not interact with IKKβ but with HSPB1, and Ac2-26 promotes HSPB1 binding to IKKβ. Furthermore, both ANXA1 and HSPB1 can interact with Hsc70 and LAMP-2A, but IKKβ only associates with LAMP-2A. Downregulation of HSPB1 or LAMP-2A reverses the degradation of IKKβ induced by Ac2-26. Taken together, these findings define an essential role of exogenous Ac2-26 in microglia and demonstrate that Ac2-26 is associated with HSPB1 and promotes HSPB1 binding to IKKβ, which is degraded by CMA, thereby reducing TNF-α expression.
Collapse
Affiliation(s)
- Lu Liu
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Dandan An
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Junying Xu
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Bin Shao
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Xing Li
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Shi
- Department of Neurobiology and Key Laboratory of Neurological Diseases of Ministry of Education, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
36
|
Zhu Z, Reiser G. The small heat shock proteins, especially HspB4 and HspB5 are promising protectants in neurodegenerative diseases. Neurochem Int 2018; 115:69-79. [PMID: 29425965 DOI: 10.1016/j.neuint.2018.02.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/24/2018] [Accepted: 02/05/2018] [Indexed: 12/13/2022]
Abstract
Small heat shock proteins (sHsps) are a group of proteins with molecular mass between 12 and 43 kDa. Currently, 11 members of this family have been classified, namely HspB1 to HspB11. HspB1, HspB2, HspB5, HspB6, HspB7, and HspB8, which are expressed in brain have been observed to be related to the pathology of neurodegenerative diseases, including Parkinson's, Alzheimer's, Alexander's disease, multiple sclerosis, and human immunodeficiency virus-associated dementia. Specifically, sHsps interact with misfolding and damaging protein aggregates, like Glial fibrillary acidic protein in AxD, β-amyloid peptides aggregates in Alzheimer's disease, Superoxide dismutase 1 in Amyotrophic lateral sclerosis and cytosine-adenine-guanine/polyglutamine (CAG/PolyQ) in Huntington's disease, Spinocerebellar ataxia type 3, Spinal-bulbar muscular atrophy, to reduce the toxicity or increase the clearance of these protein aggregates. The degree of HspB4 expression in brain is still debated. For neuroprotective mechanisms, sHsps attenuate mitochondrial dysfunctions, reduce accumulation of misfolded proteins, block oxidative/nitrosative stress, and minimize neuronal apoptosis and neuroinflammation, which are molecular mechanisms commonly accepted to mirror the progression and development of neurodegenerative diseases. The increasing incidence of the neurodegenerative diseases enhanced search for effective approaches to rescue neural tissue from degeneration with minimal side effects. sHsps have been found to exert neuroprotective functions. HspB5 has been emphasized to reduce the paralysis in a mouse model of experimental autoimmune encephalomyelitis, providing a therapeutic basis for the disease. In this review, we discuss the current understanding of the properties and the mechanisms of protection orchestrated by sHsps in the nervous system, highlighting the promising therapeutic role of sHsps in neurodegenerative diseases.
Collapse
Affiliation(s)
- Zhihui Zhu
- Institut für Inflammation und Neurodegeneration (Neurobiochemie), Otto-von-Guericke-Universität Magdeburg, Medizinische Fakultät, Leipziger Straße 44, 39120 Magdeburg, Germany; College of Medicine, Department of Physiology, University of Kentucky, Lexington, KY, USA
| | - Georg Reiser
- Institut für Inflammation und Neurodegeneration (Neurobiochemie), Otto-von-Guericke-Universität Magdeburg, Medizinische Fakultät, Leipziger Straße 44, 39120 Magdeburg, Germany.
| |
Collapse
|
37
|
Bao X, Hua Y, Keep RF, Xi G. Thrombin-induced tolerance against oxygen-glucose deprivation in astrocytes: role of protease-activated receptor-1. CONDITIONING MEDICINE 2018; 1:57-63. [PMID: 30123875 PMCID: PMC6097711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Our previous studies have found that pretreatment with a low dose of thrombin (thrombin preconditioning, TPC) reduces infarct volume and attenuates brain edema after focal cerebral ischemia in vivo and protects against the neuronal death induced by oxygen glucose deprivation (OGD) in vitro. In this study, we found that TPC (24 hours exposure to 0.5 or 1 U/ml thrombin) protects against OGD-induced astrocyte death, and that such protection is through protease activated receptor-1 (Par-1) and the p44/42 mitogen activated protein kinase (MAPK)/p90 ribosomal S6 kinase (p90RSK)/heat shock protein 25 (HSP25) pathway. In contrast, in Par-1 KO mouse astrocytes, TPC had no protective effect and it did not significantly phosphorylate p44/42 MAPK or p90RSK or upregulate HSP25. PD98059, an inhibitor of p44/42 MAPK, blocked thrombin-induced tolerance as well as upregulation of phosphorylated p90RSK and HSP25 in WT mouse astrocytes. Furthermore, SL0101, an inhibitor of p90RSK, blocked thrombin-induced protection and the HSP25 upregulation in WT mouse astrocytes. These results suggest that TPC-induced tolerance in ischemic astrocytes may be through activation of thrombin receptor Par-1 and a downstream p44/42 MAPK/p90RSK/HSP25 pathway.
Collapse
Affiliation(s)
- Xuhui Bao
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Ya Hua
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Richard F Keep
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| | - Guohua Xi
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, USA
| |
Collapse
|
38
|
Kim JH, Jung YJ, Choi B, Lee NL, Lee HJ, Kwak SY, Kwon Y, Na Y, Lee YS. Overcoming HSP27-mediated resistance by altered dimerization of HSP27 using small molecules. Oncotarget 2018; 7:53178-53190. [PMID: 27449291 PMCID: PMC5288177 DOI: 10.18632/oncotarget.10629] [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] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 07/06/2016] [Indexed: 12/15/2022] Open
Abstract
Heat shock protein 27 (HSP27, HSPB1) is an anti-apoptotic protein characterized for its tumorigenic and metastatic properties, and now referenced as a major therapeutic target in many types of cancer. The biochemical properties of HSP27 rely on a structural oligomeric and dynamic organization that is important for its chaperone activity. Down-regulation by small interfering RNA or inhibition with a dominant-negative mutant efficiently counteracts the anti-apoptotic and protective properties of HSP27. However, unlike other HSPs such as HSP90 and HSP70, small molecule approaches for neutralization of HSP27 are not well established because of the absence of an ATP binding domain. Previously, we found that a small molecule, zerumbone (ZER), induced altered dimerization of HSP27 by cross linking the cysteine residues required to build a large oligomer, led to sensitization in combination with radiation. In this study, we identified another small molecule, a xanthone compound, more capable of altering dimeric HSP27 than ZER and yielding sensitization in human lung cancer cells when combined with HSP90 inhibitors or standard anticancer modalities such as irradiation and cytotoxic anticancer drugs. Therefore, altered dimerization of HSP27 represents a good strategy for anticancer therapy in HSP27-overexpressing cancer cells.
Collapse
Affiliation(s)
- Jee Hye Kim
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Ye Jin Jung
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Byeol Choi
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Na Lim Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Hae Jun Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea
| | - Soo Yeon Kwak
- College of Pharmacy, CHA University, Pocheon, 487-010, Korea
| | - Youngjoo Kwon
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Younghwa Na
- College of Pharmacy, CHA University, Pocheon, 487-010, Korea
| | - Yun-Sil Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| |
Collapse
|
39
|
Braak H, Del Tredici K. Anterior Cingulate Cortex TDP-43 Pathology in Sporadic Amyotrophic Lateral Sclerosis. J Neuropathol Exp Neurol 2017; 77:74-83. [DOI: 10.1093/jnen/nlx104] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/04/2017] [Indexed: 01/04/2023] Open
|
40
|
Ge H, He X, Guo L, Yang X. Clinicopathological significance of HSP27 in gastric cancer: a meta-analysis. Onco Targets Ther 2017; 10:4543-4551. [PMID: 28979146 PMCID: PMC5602475 DOI: 10.2147/ott.s146590] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Many studies have provided increasing evidence to demonstrate that HSP27 has been involved in the development of gastric cancer; however, they all include few patients and the results remain controversial. Hence, we conducted a meta-analysis to evaluate correlations between HSP27 and the clinicopathological characteristics of gastric cancer. Methods An electronic search for relevant articles was conducted in PubMed, Cochrane Library, Web of Science, EMBASE database, Chinese CNKI, and Wan Fang. Data on the relationship between HSP27 expression and lymph node metastasis, serosal invasion, gender, tumor size, differentiation, and TNM stage were extracted. Pooled odds ratios and 95% confidence intervals were estimated by forest plot. Results The pooled analyses suggested that HSP27 expression was significantly associated with the incidence of gastric cancer. However, HSP27 expression had no significant relationship with lymph node metastasis, serosal invasion, gender, tumor size, differentiation, and TNM stage. Conclusion Our meta-analysis demonstrated that HSP27 may play vital roles in tumorigenesis and deterioration of gastric cancer. However, further high-quality studies are needed to provide more reliable evidence.
Collapse
Affiliation(s)
- Hua Ge
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Xueyan He
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Lingfei Guo
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Xianzhi Yang
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| |
Collapse
|
41
|
Lei Y, Liu K, Hou L, Ding L, Li Y, Liu L. Small chaperons and autophagy protected neurons from necrotic cell death. Sci Rep 2017; 7:5650. [PMID: 28720827 PMCID: PMC5515951 DOI: 10.1038/s41598-017-05995-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 06/07/2017] [Indexed: 01/22/2023] Open
Abstract
Neuronal necrosis occurs during early phase of ischemic insult. However, our knowledge of neuronal necrosis is still inadequate. To study the mechanism of neuronal necrosis, we previously established a Drosophila genetic model of neuronal necrosis by calcium overloading through expression of a constitutively opened cation channel mutant. Here, we performed further genetic screens and identified a suppressor of neuronal necrosis, CG17259, which encodes a seryl-tRNA synthetase. We found that loss-of-function (LOF) CG17259 activated eIF2α phosphorylation and subsequent up-regulation of chaperons (Hsp26 and Hsp27) and autophagy. Genetically, down-regulation of eIF2α phosphorylation, Hsp26/Hsp27 or autophagy reduced the protective effect of LOF CG17259, indicating they function downstream of CG17259. The protective effect of these protein degradation pathways indicated activation of a toxic protein during neuronal necrosis. Our data indicated that p53 was likely one such protein, because p53 was accumulated in the necrotic neurons and down-regulation of p53 rescued necrosis. In the SH-SY5Y human cells, tunicamycin (TM), a PERK activator, promoted transcription of hsp27; and necrosis induced by glutamate could be rescued by TM, associated with reduced p53 accumulation. In an ischemic stroke model in rats, p53 protein was also increased, and TM treatment could reduce the p53 accumulation and brain damage.
Collapse
Affiliation(s)
- Ye Lei
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, 100871, China.,Aging and Disease lab of Xuanwu Hospital and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Youanmen, Beijing, 100069, China
| | - Kai Liu
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, 100871, China
| | - Lin Hou
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, 100871, China.,Aging and Disease lab of Xuanwu Hospital and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Youanmen, Beijing, 100069, China
| | - Lianggong Ding
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, 100871, China.,Aging and Disease lab of Xuanwu Hospital and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Youanmen, Beijing, 100069, China
| | - Yuhong Li
- Aging and Disease lab of Xuanwu Hospital and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Youanmen, Beijing, 100069, China
| | - Lei Liu
- Aging and Disease lab of Xuanwu Hospital and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Youanmen, Beijing, 100069, China.
| |
Collapse
|
42
|
Lee BS, Jung E, Lee Y, Chung SH. Hypothermia decreased the expression of heat shock proteins in neonatal rat model of hypoxic ischemic encephalopathy. Cell Stress Chaperones 2017; 22:409-415. [PMID: 28285429 PMCID: PMC5425372 DOI: 10.1007/s12192-017-0782-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/26/2017] [Accepted: 02/23/2017] [Indexed: 12/16/2022] Open
Abstract
Hypothermia (HT) is a well-established neuroprotective strategy against neonatal hypoxic ischemic encephalopathy (HIE). The overexpression of heat shock proteins (HSP) has been shown to provide neuroprotection in animal models of stroke. We aimed to investigate the effect of HT on HSP70 and HSP27 expression in a neonatal rat model of HIE. Seven-day-old rat pups were exposed to hypoxia for 90 min to establish the Rice-Vannucci model and were assigned to the following four groups: hypoxic injury (HI)-normothermia (NT, 36 °C), HI-HT (30 °C), sham-NT, and sham-HT. After temperature intervention for 24 h, the mRNA and protein expression of HSP70 and HSP27 were measured. The association between HSP expression and brain injury severity was also evaluated. The brain infarct size was significantly smaller in the HI-HT group than in the HI-NT group. The mRNA and protein expression of both HSPs were significantly greater in the two HI groups, compared to those in the two sham groups. Moreover, among the rat pups subjected to HI, HT significantly reduced the mRNA and protein expression of both HSPs. The mRNA expression level of the HSPs was proportional to the brain injury severity. Post-ischemic HT, i.e., a cold shock attenuated the expression of HSP70 and HSP27 in a neonatal rat model of HIE. Our study suggests that neither HSP70 nor HSP27 expression is involved in the neuroprotective mechanism through which prolonged HT protects against neonatal HIE.
Collapse
Affiliation(s)
- Byong Sop Lee
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 138-736, South Korea.
| | - Euiseok Jung
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 138-736, South Korea
| | - Yeonjoo Lee
- Medical School, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sung-Hoon Chung
- Department of Pediatrics, Kyung Hee University School of Medicine, Seoul, South Korea
| |
Collapse
|
43
|
Zhan L, Liu L, Li K, Wu B, Liu D, Liang D, Wen H, Wang Y, Sun W, Liao W, Xu E. Neuroprotection of hypoxic postconditioning against global cerebral ischemia through influencing posttranslational regulations of heat shock protein 27 in adult rats. Brain Pathol 2017; 27:822-838. [PMID: 27936516 DOI: 10.1111/bpa.12472] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 12/01/2016] [Indexed: 12/18/2022] Open
Abstract
We previously reported that hypoxic postconditioning (HPC) ameliorated hippocampal neuronal death induced by transient global cerebral ischemia (tGCI) in adult rats. However, the mechanism of HPC-induced neuroprotection is still elusive. Notably, heat shock protein 27 (Hsp27) has recently emerged as a potent neuroprotectant in cerebral ischemia. Although its robust protective effect on stroke has been recognized, the mechanism of Hsp27-mediated neuroprotection is largely unknown. Here, we investigated the potential molecular mechanism by which HPC modulates the posttranslational regulations of Hsp27 after tGCI. We found that HPC increased expression of Hsp27 in CA1 subregion after tGCI. Inhibition of Hsp27 expression with lentivirus-mediated short hairpin RNA (shRNA) abolished the neuroprotection induced by HPC in vivo. Furthermore, pretreatment with cycloheximide, a protein synthesis inhibitor, resulted in a significant decrease in the degradation rate of Hsp27 protein in postconditioned rats, suggesting that the increase in the expression of Hsp27 after HPC might result from its decreased degradation. Next, pretreatment with leupeptin, a lysosomal inhibitor, resulted in an accumulation of Hsp27 after tGCI, indicating that autophagic pathway may be responsible for the degradation of Hsp27. We further showed that the formation of LC3-II and autophagosomes increased after tGCI. Meanwhile, the degradation of Hsp27 was suppressed and neuronal damage was reduced when blocking autophagy with 3-Methyladenine, whereas activating autophagy with rapamycin showed an opposite tendency. Lastly, we confirmed that HPC increased the expression of phosphorylated MAPKAP kinase 2 (MK2) and Hsp27 after tGCI. Also, administration of SB203580, a p38 mitogen-activated protein kinase inhibitor, decreased the expressions of phosphorylated MK2 and Hsp27. Our results suggested that inhibition of Hsp27 degradation mediated by down-regulation of autophagy may induce ischemic tolerance after HPC. Additionally, phosphorylation of Hsp27 induced by MK2 might be associated with the neuroprotection of HPC.
Collapse
Affiliation(s)
- Lixuan Zhan
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Liu Liu
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Kongping Li
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Baoxing Wu
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Dandan Liu
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Donghai Liang
- Department of Environmental Health Sciences, Rollins School of Public Health, Emory University, 1518 Clifton Road, 2040K, Atlanta, GA, 30322
| | - Haixia Wen
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Yanmei Wang
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Weiwen Sun
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - Weiping Liao
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| | - En Xu
- Institute of Neurosciences and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou, 510260, China
| |
Collapse
|
44
|
Neuroprotective and Neurorestorative Processes after Spinal Cord Injury: The Case of the Bulbospinal Respiratory Neurons. Neural Plast 2016; 2016:7692602. [PMID: 27563469 PMCID: PMC4987469 DOI: 10.1155/2016/7692602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 06/29/2016] [Indexed: 11/18/2022] Open
Abstract
High cervical spinal cord injuries interrupt the bulbospinal respiratory pathways projecting to the cervical phrenic motoneurons resulting in important respiratory defects. In the case of a lateralized injury that maintains the respiratory drive on the opposite side, a partial recovery of the ipsilateral respiratory function occurs spontaneously over time, as observed in animal models. The rodent respiratory system is therefore a relevant model to investigate the neuroplastic and neuroprotective mechanisms that will trigger such phrenic motoneurons reactivation by supraspinal pathways. Since part of this recovery is dependent on the damaged side of the spinal cord, the present review highlights our current understanding of the anatomical neuroplasticity processes that are developed by the surviving damaged bulbospinal neurons, notably axonal sprouting and rerouting. Such anatomical neuroplasticity relies also on coordinated molecular mechanisms at the level of the axotomized bulbospinal neurons that will promote both neuroprotection and axon growth.
Collapse
|
45
|
Scarlett JM, Rojas JM, Matsen ME, Kaiyala KJ, Stefanovski D, Bergman RN, Nguyen HT, Dorfman MD, Lantier L, Wasserman DH, Mirzadeh Z, Unterman TG, Morton GJ, Schwartz MW. Central injection of fibroblast growth factor 1 induces sustained remission of diabetic hyperglycemia in rodents. Nat Med 2016; 22:800-6. [PMID: 27213816 PMCID: PMC4938755 DOI: 10.1038/nm.4101] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 04/08/2016] [Indexed: 12/11/2022]
Abstract
Type 2 diabetes (T2D) is among the most common and costly disorders worldwide. The goal of current medical management for T2D is to transiently ameliorate hyperglycemia through daily dosing of one or more antidiabetic drugs. Hypoglycemia and weight gain are common side effects of therapy, and sustained disease remission is not obtainable with nonsurgical approaches. On the basis of the potent glucose-lowering response elicited by activation of brain fibroblast growth factor (FGF) receptors, we explored the antidiabetic efficacy of centrally administered FGF1, which, unlike other FGF peptides, activates all FGF receptor subtypes. We report that a single intracerebroventricular injection of FGF1 at a dose one-tenth of that needed for antidiabetic efficacy following peripheral injection induces sustained diabetes remission in both mouse and rat models of T2D. This antidiabetic effect is not secondary to weight loss, does not increase the risk of hypoglycemia, and involves a novel and incompletely understood mechanism for increasing glucose clearance from the bloodstream. We conclude that the brain has an inherent potential to induce diabetes remission and that brain FGF receptors are potential pharmacological targets for achieving this goal.
Collapse
MESH Headings
- Adipose Tissue/drug effects
- Adipose Tissue/metabolism
- Animals
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Blotting, Western
- Body Composition
- Brain/drug effects
- Brain/metabolism
- Carbon Radioisotopes
- Deoxyglucose
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/metabolism
- Diet, High-Fat
- Disease Models, Animal
- Ependymoglial Cells/drug effects
- Ependymoglial Cells/metabolism
- Fibroblast Growth Factor 1/pharmacology
- Forkhead Box Protein O1/genetics
- Glucose Tolerance Test
- Heart/drug effects
- Heat-Shock Proteins/drug effects
- Heat-Shock Proteins/metabolism
- Hyperglycemia/metabolism
- Hypothalamus/cytology
- Hypothalamus/drug effects
- Hypothalamus/metabolism
- Injections, Intraventricular
- Liver/metabolism
- Male
- Mice
- Mice, Knockout
- Mice, Obese
- Molecular Chaperones
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Myocardium/metabolism
- Neoplasm Proteins/drug effects
- Neoplasm Proteins/metabolism
- Proto-Oncogene Proteins c-fos/drug effects
- Proto-Oncogene Proteins c-fos/metabolism
- Rats
- Rats, Zucker
- Real-Time Polymerase Chain Reaction
- Receptor, Insulin/antagonists & inhibitors
- Receptor, Insulin/genetics
- Remission Induction
Collapse
Affiliation(s)
- Jarrad M Scarlett
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
- Department of Pediatric Gastroenterology and Hepatology, Seattle Children's Hospital, Seattle, Washington, USA
| | - Jennifer M Rojas
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Miles E Matsen
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Karl J Kaiyala
- Department of Oral Health Sciences, School of Dentistry, University of Washington, Seattle, Washington, USA
| | - Darko Stefanovski
- New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Richard N Bergman
- Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Hong T Nguyen
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Mauricio D Dorfman
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Louise Lantier
- Department of Molecular Physiology and Biophysics, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - David H Wasserman
- Department of Molecular Physiology and Biophysics, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Zaman Mirzadeh
- Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Terry G Unterman
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
- Medical Service, Jesse Brown Virginia Medical Center, Chicago, Illinois, USA
| | - Gregory J Morton
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Michael W Schwartz
- Diabetes and Obesity Center of Excellence, Department of Medicine, University of Washington, Seattle, Washington, USA
| |
Collapse
|
46
|
Piri N, Kwong JMK, Gu L, Caprioli J. Heat shock proteins in the retina: Focus on HSP70 and alpha crystallins in ganglion cell survival. Prog Retin Eye Res 2016; 52:22-46. [PMID: 27017896 PMCID: PMC4842330 DOI: 10.1016/j.preteyeres.2016.03.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/14/2016] [Accepted: 03/22/2016] [Indexed: 10/22/2022]
Abstract
Heat shock proteins (HSPs) belong to a superfamily of stress proteins that are critical constituents of a complex defense mechanism that enhances cell survival under adverse environmental conditions. Cell protective roles of HSPs are related to their chaperone functions, antiapoptotic and antinecrotic effects. HSPs' anti-apoptotic and cytoprotective characteristics, their ability to protect cells from a variety of stressful stimuli, and the possibility of their pharmacological induction in cells under pathological stress make these proteins an attractive therapeutic target for various neurodegenerative diseases; these include Alzheimer's, Parkinson's, Huntington's, prion disease, and others. This review discusses the possible roles of HSPs, particularly HSP70 and small HSPs (alpha A and alpha B crystallins) in enhancing the survival of retinal ganglion cells (RGCs) in optic neuropathies such as glaucoma, which is characterized by progressive loss of vision caused by degeneration of RGCs and their axons in the optic nerve. Studies in animal models of RGC degeneration induced by ocular hypertension, optic nerve crush and axotomy show that upregulation of HSP70 expression by hyperthermia, zinc, geranyl-geranyl acetone, 17-AAG (a HSP90 inhibitor), or through transfection of retinal cells with AAV2-HSP70 effectively supports the survival of injured RGCs. RGCs survival was also stimulated by overexpression of alpha A and alpha B crystallins. These findings provide support for translating the HSP70- and alpha crystallin-based cell survival strategy into therapy to protect and rescue injured RGCs from degeneration associated with glaucomatous and other optic neuropathies.
Collapse
Affiliation(s)
- Natik Piri
- Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; Brain Research Institute, University of California, Los Angeles, CA 90095, USA.
| | - Jacky M K Kwong
- Stein Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Lei Gu
- Stein Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Joseph Caprioli
- Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; Brain Research Institute, University of California, Los Angeles, CA 90095, USA
| |
Collapse
|
47
|
Navarro-Zaragoza J, Ros-Simó C, Milanés MV, Valverde O, Laorden ML. Binge Ethanol and MDMA Combination Exacerbates Toxic Cardiac Effects by Inducing Cellular Stress. PLoS One 2015; 10:e0141502. [PMID: 26509576 PMCID: PMC4624901 DOI: 10.1371/journal.pone.0141502] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/08/2015] [Indexed: 01/06/2023] Open
Abstract
Binge drinking is a common pattern of ethanol consumption among young people. Binge drinkers are especially susceptible to brain damage when other substances are co-administered, in particular 3,4 methylendioxymethamphetamine (MDMA). The aim of the present work was to study the mechanisms implicated in the adaptive changes observed after administration of these drugs of abuse. So, we have evaluated the cardiac sympathetic activity and the expression and activation of heat shock protein 27 (HSP27), after voluntary binge ethanol consumption, alone and in combination with MDMA. Both parameters are markers of stressful situations and they could be modified inducing several alterations in different systems. Adolescent mice received MDMA, ethanol or both (ethanol plus MDMA). Drinking in the dark (DID) procedure was used as a model of binge. Noradrenaline (NA) turnover, tyrosine hydroxylase (TH), TH phosphorylated at serine 31 and HSP27 expression and its phosphorylation at serine 82 were evaluated in adolescent mice 48 h, 72 h, and 7 days after treatments in the left ventricle. NA and normetanephrine (NMN) were determined by high-performance liquid chromatography (HPLC); TH and HSP27 expression and phosphorylation were measured by quantitative blot immunollabeling using specific antibodies. Ethanol and MDMA co-administration increased NA turnover and TH expression and phosphorylation versus the consumption of each one of these drugs. In parallel with the described modifications in the cardiac sympathetic activity, our results showed that binge ethanol+MDMA exposure is associated with an increase in HSP27 expression and phosphorylation in the left ventricle, supporting the idea that the combination of both drugs exacerbates the cellular stress induced by ethanol or MDMA alone.
Collapse
Affiliation(s)
- Javier Navarro-Zaragoza
- Department of Pharmacology, Faculty of Medicine, University of Murcia, Murcia, Spain
- * E-mail:
| | - Clara Ros-Simó
- Grup de Recerca en Neurobiologia del Comportament (GRNC), Universitat Pompeu Fabra, Barcelona, Spain
| | | | - Olga Valverde
- Grup de Recerca en Neurobiologia del Comportament (GRNC), Universitat Pompeu Fabra, Barcelona, Spain
| | - María-Luisa Laorden
- Department of Pharmacology, Faculty of Medicine, University of Murcia, Murcia, Spain
| |
Collapse
|
48
|
Kanchan K, Fuxreiter M, Fésüs L. Physiological, pathological, and structural implications of non-enzymatic protein-protein interactions of the multifunctional human transglutaminase 2. Cell Mol Life Sci 2015; 72:3009-35. [PMID: 25943306 PMCID: PMC11113818 DOI: 10.1007/s00018-015-1909-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 04/10/2015] [Accepted: 04/13/2015] [Indexed: 12/26/2022]
Abstract
Transglutaminase 2 (TG2) is a ubiquitously expressed member of an enzyme family catalyzing Ca(2+)-dependent transamidation of proteins. It is a multifunctional protein having several well-defined enzymatic (GTP binding and hydrolysis, protein disulfide isomerase, and protein kinase activities) and non-enzymatic (multiple interactions in protein scaffolds) functions. Unlike its enzymatic interactions, the significance of TG2's non-enzymatic regulation of its activities has recently gained importance. In this review, we summarize all the partners that directly interact with TG2 in a non-enzymatic manner and analyze how these interactions could modulate the crosslinking activity and cellular functions of TG2 in different cell compartments. We have found that TG2 mostly acts as a scaffold to bridge various proteins, leading to different functional outcomes. We have also studied how specific structural features, such as intrinsically disordered regions and embedded short linear motifs contribute to multifunctionality of TG2. Conformational diversity of intrinsically disordered regions enables them to interact with multiple partners, which can result in different biological outcomes. Indeed, ID regions in TG2 were identified in functionally relevant locations, indicating that they could facilitate conformational transitions towards the catalytically competent form. We reason that these structural features contribute to modulating the physiological and pathological functions of TG2 and could provide a new direction for detecting unique regulatory partners. Additionally, we have assembled all known anti-TG2 antibodies and have discussed their significance as a toolbox for identifying and confirming novel TG2 regulatory functions.
Collapse
Affiliation(s)
- Kajal Kanchan
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4010 Hungary
- Sainsbury Laboratory, University of Cambridge, Cambridge, UK
| | - Mónika Fuxreiter
- MTA-DE Momentum Laboratory of Protein Dynamics, University of Debrecen, Debrecen, Hungary
| | - László Fésüs
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, 4010 Hungary
- MTA-DE Apoptosis, Genomics and Stem Cell Research Group of the Hungarian Academy of Sciences, Debrecen, Hungary
| |
Collapse
|
49
|
Wu D, Xu J, Song E, Tang S, Zhang X, Kemper N, Hartung J, Bao E. Acetyl salicylic acid protected against heat stress damage in chicken myocardial cells and may associate with induced Hsp27 expression. Cell Stress Chaperones 2015; 20:687-96. [PMID: 25956131 PMCID: PMC4463918 DOI: 10.1007/s12192-015-0596-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 04/13/2015] [Accepted: 04/27/2015] [Indexed: 11/25/2022] Open
Abstract
We investigated whether acetyl salicylic acid (ASA) protects chicken myocardial cells from heat stress-mediated damage in vivo and whether the induction of Hsp27 expression is connected with this function. Pathological changes, damage-related enzyme levels, and Hsp27 expression were studied in chickens following heat stress (40 ± 1 °C for 0, 1, 2, 3, 5, 7, 10, 15, or 24 h, respectively) with or without ASA administration (1 mg/kg BW, 2 h prior). Appearance of pathological lesions such as degenerations and karyopyknosis as well as the myocardial damage-related enzyme activation indicated that heat stress causes considerable injury to the myocardial cells in vivo. Myocardial cell injury was most serious in chickens exposed to heat stress without prior ASA administration; meanwhile, ASA pretreatment acted protective function against high temperature-induced injury. Hsp27 expression was induced under all experimental conditions but was one-fold higher in the ASA-pretreated animals (0.3138 ± 0.0340 ng/mL) than in untreated animals (0.1437 ± 0.0476 ng/mL) 1 h after heat stress exposure, and such an increase was sustained over the length of the experiment. Our findings indicate that pretreatment with ASA protects chicken myocardial cells from acute heat stress in vivo with almost no obvious side effects, and this protection may involve an enhancement of Hsp27 expression. However, the detailed mechanisms underlying this effect require further investigation.
Collapse
Affiliation(s)
- Di Wu
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jiao Xu
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| | - Erbao Song
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| | - Shu Tang
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| | - Xiaohui Zhang
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| | - N. Kemper
- />Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - J. Hartung
- />Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Endong Bao
- />College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 China
| |
Collapse
|
50
|
Mymrikov EV, Haslbeck M. Medical implications of understanding the functions of human small heat shock proteins. Expert Rev Proteomics 2015; 12:295-308. [PMID: 25915440 DOI: 10.1586/14789450.2015.1039993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Small heat shock proteins (sHsps) are ubiquitous molecular chaperones that are implicated in a variety of diseases. Upon stress, they stabilize unfolding proteins and prevent them from aggregating. However, under physiological conditions without severe stress, some sHsps interact with other proteins. In a perspective view, their ability to bind specific client proteins might allow them to fine-tune the availability of the client for other, client-dependent cellular processes. Additionally, some sHsps seem to interact with specific co-chaperones. These co-chaperones are usually part of large protein machineries that are functionally modulated upon sHsps interaction. Finally, secreted human sHsps seem to interact with receptor proteins, potentially as signal molecules transmitting the stress status from one cell to another. This review focuses on the mechanistic description of these different binding modes for human sHsps and how this might help to understand and modulate the function of sHsps in the context of disease.
Collapse
Affiliation(s)
- Evgeny V Mymrikov
- Department Chemie, Technische Universität München, D-85747 Garching, Germany
| | | |
Collapse
|