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Yang C, Liu G, Chen X, Le W. Cerebellum in Alzheimer's disease and other neurodegenerative diseases: an emerging research frontier. MedComm (Beijing) 2024; 5:e638. [PMID: 39006764 PMCID: PMC11245631 DOI: 10.1002/mco2.638] [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] [Received: 10/30/2023] [Revised: 06/04/2024] [Accepted: 06/12/2024] [Indexed: 07/16/2024] Open
Abstract
The cerebellum is crucial for both motor and nonmotor functions. Alzheimer's disease (AD), alongside other dementias such as vascular dementia (VaD), Lewy body dementia (DLB), and frontotemporal dementia (FTD), as well as other neurodegenerative diseases (NDs) like Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), and spinocerebellar ataxias (SCA), are characterized by specific and non-specific neurodegenerations in central nervous system. Previously, the cerebellum's significance in these conditions was underestimated. However, advancing research has elevated its profile as a critical node in disease pathology. We comprehensively review the existing evidence to elucidate the relationship between cerebellum and the aforementioned diseases. Our findings reveal a growing body of research unequivocally establishing a link between the cerebellum and AD, other forms of dementia, and other NDs, supported by clinical evidence, pathological and biochemical profiles, structural and functional neuroimaging data, and electrophysiological findings. By contrasting cerebellar observations with those from the cerebral cortex and hippocampus, we highlight the cerebellum's distinct role in the disease processes. Furthermore, we also explore the emerging therapeutic potential of targeting cerebellum for the treatment of these diseases. This review underscores the importance of the cerebellum in these diseases, offering new insights into the disease mechanisms and novel therapeutic strategies.
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Affiliation(s)
- Cui Yang
- Institute of Neurology Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - Guangdong Liu
- Institute of Neurology Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - Xi Chen
- Institute of Neurology Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - Weidong Le
- Institute of Neurology Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China Chengdu China
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2
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Gruol DL. The Neuroimmune System and the Cerebellum. CEREBELLUM (LONDON, ENGLAND) 2023:10.1007/s12311-023-01624-3. [PMID: 37950146 DOI: 10.1007/s12311-023-01624-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
The recognition that there is an innate immune system of the brain, referred to as the neuroimmune system, that preforms many functions comparable to that of the peripheral immune system is a relatively new concept and much is yet to be learned. The main cellular components of the neuroimmune system are the glial cells of the brain, primarily microglia and astrocytes. These cell types preform many functions through secretion of signaling factors initially known as immune factors but referred to as neuroimmune factors when produced by cells of the brain. The immune functions of glial cells play critical roles in the healthy brain to maintain homeostasis that is essential for normal brain function, to establish cytoarchitecture of the brain during development, and, in pathological conditions, to minimize the detrimental effects of disease and injury and promote repair of brain structure and function. However, dysregulation of this system can occur resulting in actions that exacerbate or perpetuate the detrimental effects of disease or injury. The neuroimmune system extends throughout all brain regions, but attention to the cerebellar system has lagged that of other brain regions and information is limited on this topic. This article is meant to provide a brief introduction to the cellular and molecular components of the brain immune system, its functions, and what is known about its role in the cerebellum. The majority of this information comes from studies of animal models and pathological conditions, where upregulation of the system facilitates investigation of its actions.
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Affiliation(s)
- Donna L Gruol
- Neuroscience Department, The Scripps Research Institute, La Jolla, CA, 92037, USA.
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3
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Kim H, Gomez-Pastor R. HSF1 and Its Role in Huntington's Disease Pathology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1410:35-95. [PMID: 36396925 DOI: 10.1007/5584_2022_742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
PURPOSE OF REVIEW Heat shock factor 1 (HSF1) is the master transcriptional regulator of the heat shock response (HSR) in mammalian cells and is a critical element in maintaining protein homeostasis. HSF1 functions at the center of many physiological processes like embryogenesis, metabolism, immune response, aging, cancer, and neurodegeneration. However, the mechanisms that allow HSF1 to control these different biological and pathophysiological processes are not fully understood. This review focuses on Huntington's disease (HD), a neurodegenerative disease characterized by severe protein aggregation of the huntingtin (HTT) protein. The aggregation of HTT, in turn, leads to a halt in the function of HSF1. Understanding the pathways that regulate HSF1 in different contexts like HD may hold the key to understanding the pathomechanisms underlying other proteinopathies. We provide the most current information on HSF1 structure, function, and regulation, emphasizing HD, and discussing its potential as a biological target for therapy. DATA SOURCES We performed PubMed search to find established and recent reports in HSF1, heat shock proteins (Hsp), HD, Hsp inhibitors, HSF1 activators, and HSF1 in aging, inflammation, cancer, brain development, mitochondria, synaptic plasticity, polyglutamine (polyQ) diseases, and HD. STUDY SELECTIONS Research and review articles that described the mechanisms of action of HSF1 were selected based on terms used in PubMed search. RESULTS HSF1 plays a crucial role in the progression of HD and other protein-misfolding related neurodegenerative diseases. Different animal models of HD, as well as postmortem brains of patients with HD, reveal a connection between the levels of HSF1 and HSF1 dysfunction to mutant HTT (mHTT)-induced toxicity and protein aggregation, dysregulation of the ubiquitin-proteasome system (UPS), oxidative stress, mitochondrial dysfunction, and disruption of the structural and functional integrity of synaptic connections, which eventually leads to neuronal loss. These features are shared with other neurodegenerative diseases (NDs). Currently, several inhibitors against negative regulators of HSF1, as well as HSF1 activators, are developed and hold promise to prevent neurodegeneration in HD and other NDs. CONCLUSION Understanding the role of HSF1 during protein aggregation and neurodegeneration in HD may help to develop therapeutic strategies that could be effective across different NDs.
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Affiliation(s)
- Hyuck Kim
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Rocio Gomez-Pastor
- Department of Neuroscience, School of Medicine, University of Minnesota, Minneapolis, MN, USA.
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Wu Y, Meng W, Guan M, Zhao X, Zhang C, Fang Q, Zhang Y, Sun Z, Cai M, Huang D, Yang X, Yu Y, Cui Y, He S, Chai R. Pitavastatin protects against neomycin-induced ototoxicity through inhibition of endoplasmic reticulum stress. Front Mol Neurosci 2022; 15:963083. [PMID: 35992197 PMCID: PMC9381809 DOI: 10.3389/fnmol.2022.963083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Irreversible injury to inner ear hair cells induced by aminoglycoside antibiotics contributes to the formation of sensorineural hearing loss. Pitavastatin (PTV), a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, has been reported to exert neuroprotective effects. However, its role in aminoglycoside-induced hearing loss remains unknown. The objectives of this study were to investigate the beneficial effects, as well as the mechanism of action of PTV against neomycin-induced ototoxicity. We found that PTV remarkably reduced hair cell loss in mouse cochlear explants and promoted auditory HEI-OC1 cells survival after neomycin stimulation. We also observed that the auditory brainstem response threshold that was increased by neomycin was significantly reduced by pretreatment with PTV in mice. Furthermore, neomycin-induced endoplasmic reticulum stress in hair cells was attenuated by PTV treatment through inhibition of PERK/eIF2α/ATF4 signaling. Additionally, we found that PTV suppressed the RhoA/ROCK/JNK signal pathway, which was activated by neomycin stimulation in HEI-OC1 cells. Collectively, our results showed that PTV might serve as a promising therapeutic agent against aminoglycoside-induced ototoxicity.
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Affiliation(s)
- Yunhao Wu
- State Key Laboratory of Bioelectronics, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Department of Otolaryngology Head and Neck Surgery, School of Life Sciences and Technology, Zhongda Hospital, Advanced Institute for Life and Health, Southeast University, Nanjing, China
| | - Wei Meng
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China
| | - Ming Guan
- Department of Otolaryngology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaolong Zhao
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Chen Zhang
- Beijing Key Laboratory of Neural Regeneration and Repair, Department of Neurobiology, Advanced Innovation Center for Human Brain Protection, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Qiaojun Fang
- State Key Laboratory of Bioelectronics, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Department of Otolaryngology Head and Neck Surgery, School of Life Sciences and Technology, Zhongda Hospital, Advanced Institute for Life and Health, Southeast University, Nanjing, China
| | - Yuhua Zhang
- State Key Laboratory of Bioelectronics, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Department of Otolaryngology Head and Neck Surgery, School of Life Sciences and Technology, Zhongda Hospital, Advanced Institute for Life and Health, Southeast University, Nanjing, China
| | - Zihui Sun
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China
| | - Mingjing Cai
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China
| | - Dongdong Huang
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China
| | - Xuechun Yang
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yafeng Yu
- Department of Otolaryngology, First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Yafeng Yu,
| | - Yong Cui
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, South Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- Yong Cui,
| | - Shuangba He
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Nanjing Tongren Hospital, Southeast University, Nanjing, China
- Shuangba He,
| | - Renjie Chai
- State Key Laboratory of Bioelectronics, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Department of Otolaryngology Head and Neck Surgery, School of Life Sciences and Technology, Zhongda Hospital, Advanced Institute for Life and Health, Southeast University, Nanjing, China
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
- Renjie Chai,
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Mengr A, Hrubá L, Exnerová A, Holubová M, Popelová A, Železná B, Kuneš J, Maletínská L. Palmitoylated prolactin-releasing peptide reduced Aβ plaques and microgliosis in the cerebellum: APP/PS1 mice study. Curr Alzheimer Res 2021; 18:607-622. [PMID: 34551697 DOI: 10.2174/1567205018666210922110652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Prolactin-releasing peptide (PrRP) is a potential drug for the treatment of obesity and associated type 2 diabetes mellitus (T2DM) due to its strong anorexigenic and antidiabetic properties. In our recent study, the lipidized PrRP analog palm11-PrRP31 was proven to exert beneficial effects in APP/PS1 mice, a model of Alzheimer´s disease (AD)-like amyloid-β (Aβ) pathology, reducing the Aβ plaque load, microgliosis and astrocytosis in the hippocampus and cortex. OBJECTIVE In this study, we focused on the neuroprotective and anti-inflammatory effects of palm11-PrRP31 and its possible impact on synaptogenesis in the cerebellum of APP/PS1 mice, because others have suggested that cerebellar Aβ plaques contribute to cognitive deficits in AD. METHODS APP/PS1 mice were treated subcutaneously with palm11-PrRP31 for 2 months, then immunoblotting and immunohistochemistry were used to quantify pathological markers connected to AD, compared to control mice. RESULTS In the cerebella of 8 months old APP/PS1 mice, we found widespread Aβ plaques surrounded by activated microglia detected by ionized calcium-binding adapter molecule (Iba1), but no increase in astrocytic marker glial fibrillary acidic protein (GFAP) compared to controls. Interestingly, no difference in both presynaptic markers syntaxin1A and postsynaptic marker spinophilin was registered between APP/PS1 and control mice. Palm11-PrRP31 treatment significantly reduced the Aβ plaque load and microgliosis in the cerebellum. Furthermore, palm11-PrRP31 increased synaptogenesis and attenuated neuroinflammation and apoptosis in the hippocampus of APP/PS1 mice. CONCLUSION These results suggest palm11-PrRP31 is a promising agent for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Anna Mengr
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Lucie Hrubá
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Aneta Exnerová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Martina Holubová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Andrea Popelová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Blanka Železná
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
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6
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Occhigrossi L, D’Eletto M, Barlev N, Rossin F. The Multifaceted Role of HSF1 in Pathophysiology: Focus on Its Interplay with TG2. Int J Mol Sci 2021; 22:ijms22126366. [PMID: 34198675 PMCID: PMC8232231 DOI: 10.3390/ijms22126366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/03/2021] [Accepted: 06/11/2021] [Indexed: 11/19/2022] Open
Abstract
The cellular environment needs to be strongly regulated and the maintenance of protein homeostasis is crucial for cell function and survival. HSF1 is the main regulator of the heat shock response (HSR), the master pathway required to maintain proteostasis, as involved in the expression of the heat shock proteins (HSPs). HSF1 plays numerous physiological functions; however, the main role concerns the modulation of HSPs synthesis in response to stress. Alterations in HSF1 function impact protein homeostasis and are strongly linked to diseases, such as neurodegenerative disorders, metabolic diseases, and different types of cancers. In this context, type 2 Transglutaminase (TG2), a ubiquitous enzyme activated during stress condition has been shown to promote HSF1 activation. HSF1-TG2 axis regulates the HSR and its function is evolutionary conserved and implicated in pathological conditions. In this review, we discuss the role of HSF1 in the maintenance of proteostasis with regard to the HSF1-TG2 axis and we dissect the stress response pathways implicated in physiological and pathological conditions.
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Affiliation(s)
- Luca Occhigrossi
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (L.O.); (M.D.)
| | - Manuela D’Eletto
- Department of Biology, University of Rome ‘Tor Vergata’, 00133 Rome, Italy; (L.O.); (M.D.)
| | - Nickolai Barlev
- Institute of Cytology, 194064 Saint-Petersburg, Russia;
- Moscow Institute of Physics and Technology (MIPT), 141701 Dolgoprudny, Russia
| | - Federica Rossin
- Institute of Cytology, 194064 Saint-Petersburg, Russia;
- Correspondence:
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7
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Protective effect of maternal exercise against amyloid-β neurotoxicity in the male rat offspring's cerebellum. J Dev Orig Health Dis 2020; 11:521-532. [PMID: 32631472 DOI: 10.1017/s2040174420000562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The Developmental Origins of Health and Disease (DOHaD) states that intrauterine maternal environment influences postnatal life by programming offspring's metabolism. Intrauterine milieu induced by exercise during pregnancy promotes long-lasting benefits to the offspring's health and seems to offer some resistance against chronic diseases in adult life. Alzheimer's disease is a public health concern with limited treatment options. In the present study, we assessed the potential of maternal exercise during pregnancy in long-term programming of young adult male rat offspring's cerebellar metabolism in conferring neuroprotection against amyloid-β (Aβ) neurotoxicity. Female Wistar rats were submitted to a swimming protocol 1 week prior mating and throughout pregnancy (five sessions/a week lasting 30 min). Aβ oligomers were infused bilaterally in the brain ventricles of 60-day-old male offspring. Fourteen days after surgery, we measured parameters related to redox state, mitochondrial function, and the immunocontent of proteins related to synaptic function. We found that maternal exercise during pregnancy attenuated several parameters in the offspring's male rat cerebellum, such as the reactive species rise, the increase of inducible nitric oxide synthase immunocontent and tau phosphorylation induced by Aβ oligomers, increased mitochondrial fission indicated by dynamin-related protein 1 (DRP1), and protein oxidation identified by carbonylation. Strikingly, we find that maternal exercise promotes changes in the rat offspring's cerebellum that are still evident in young adult life. These favorable neurochemical changes in offspring's cerebellum induced by maternal exercise may contribute to a protective phenotype against Aβ-induced neurotoxicity in young adult male rat offspring.
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8
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Solmaz V, Atasoy Ö, Erbaş O. Atorvastatin has therapeutic potential for the fatty liver-induced memory dysfunction in rats, likely via its antioxidant and anti-inflammatory properties. Neurol Res 2020; 42:497-503. [PMID: 32252617 DOI: 10.1080/01616412.2020.1747718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
This study aimed to evaluate the memory function in a rat model of fatty liver and to investigate the effects of statins on fatty liver, neuronal inflammation, oxidative stress and memory. In this study, 24 male rats were used and were divided into four groups consisting of 6 animals in each. Of them, 12 rats received liquid diet containing 35% fructose for 8 weeks in order to induce hepatosteatosis, while other animals had a normal nutrition. Group 1 served as controls and had a normal nutrition with no drug treatment. The animals in Group 2 had a normal nutrition and treated with atorvastatin. Group 3 received high-fructose diet with no drug treatment and Group 4 received high-fructose diet followed by atorvastatin treatment. After the two weeks of treatment period, passive avoidance tasks evaluating the memory were performed in both the study and control groups. The liver and brain were then removed for histologic, pathologic, and biochemical evaluation. In the non-treated rats with hepatosteatosis (Group 3), the lowest mean latency time and the highest mean histopathologic liver score, and brain TNF- α and MDA (Measurement of lipid peroxidation) were found (p < 0.00001). On the other hand, in the animals treated with atorvastatin, all these parameters were significantly higher than that of controls and significantly lower than that of Group 3 (p < 0.05). Fatty liver can increase inflammation and cause memory disorders, and atorvastatin may have a positive effect on cognitive disorders.
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Affiliation(s)
| | - Özüm Atasoy
- Radyasyon Onkolojisi, Kartal Dr. Lutfi Kırdar Eğitim Ve Araştırma Hastanesi, İstanbul, Turkey
| | - Oytun Erbaş
- Department of Physiology, Bilim University Medical Faculty, İstanbul, Turkey
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9
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Hoxha E, Lippiello P, Zurlo F, Balbo I, Santamaria R, Tempia F, Miniaci MC. The Emerging Role of Altered Cerebellar Synaptic Processing in Alzheimer's Disease. Front Aging Neurosci 2018; 10:396. [PMID: 30542279 PMCID: PMC6278174 DOI: 10.3389/fnagi.2018.00396] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/15/2018] [Indexed: 11/13/2022] Open
Abstract
The role of the cerebellum in Alzheimer's disease (AD) has been neglected for a long time. Recent studies carried out using transgenic mouse models have demonstrated that amyloid-β (Aβ) is deposited in the cerebellum and affects synaptic transmission and plasticity, sometimes before plaque formation. A wide variability of motor phenotype has been observed in the different murine models of AD, without a consistent correlation with the extent of cerebellar histopathological changes or with cognitive deficits. The loss of noradrenergic drive may contribute to the impairment of cerebellar synaptic function and motor learning observed in these mice. Furthermore, cerebellar neurons, particularly granule cells, have been used as in vitro model of Aβ-induced neuronal damage. An unexpected conclusion is that the cerebellum, for a long time thought to be somehow protected from AD pathology, is actually considered as a region vulnerable to Aβ toxic damage, even at the early stage of the disease, with consequences on motor performance.
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Affiliation(s)
- Eriola Hoxha
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Turin, Italy.,Department of Neuroscience, University of Torino, Turin, Italy
| | - Pellegrino Lippiello
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Fabio Zurlo
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Ilaria Balbo
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Turin, Italy.,Department of Neuroscience, University of Torino, Turin, Italy
| | - Rita Santamaria
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Filippo Tempia
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Turin, Italy.,Department of Neuroscience, University of Torino, Turin, Italy.,National Institute of Neuroscience (INN), Turin, Italy
| | - Maria Concetta Miniaci
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
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10
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Huang C, Wu J, Xu L, Wang J, Chen Z, Yang R. Regulation of HSF1 protein stabilization: An updated review. Eur J Pharmacol 2018; 822:69-77. [PMID: 29341886 DOI: 10.1016/j.ejphar.2018.01.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/11/2017] [Accepted: 01/09/2018] [Indexed: 12/12/2022]
Abstract
Heat shock factor 1 (HSF1) is a transcriptional factor that determines the efficiency of heat shock responses (HSRs) in the cell. Given its function has been extensively studied in recent years, HSF1 is considered a potential target for the treatment of disorders associated with protein aggregation. The activity of HSF1 is traditionally regulated at the transcriptional level in which the transactivation domain of HSF1 is modified by extensive array of pos-translational modifications, such as phosphorylation, sumoylation, and acetylation. Recently, HSF1 is also reported to be regulated at the monomeric level. For example, in neurodegenerative disorders such as Huntington's disease and Alzheimer's disease the expression levels of the monomeric HSF1 are found to be reduced markedly. Methylene blue (MB) and riluzole, two clinical available drugs, increase the amount of the monomeric HSF1 in both cells and animals. Since the monomeric HSF1 not only determines the efficiency of HSRs, but exerts protective effects in a trimerization-independent manner, increasing the amount of the monomeric HSF1 via stabilization of HSF1 may be an alternative strategy for the amplification of HSR. However, to date we have no outlined knowledges about HSF1 protein stabilization, though studies regarding the regulation of the monomeric HSF1 have been documented in recent years. Here, we summarize the regulation of the monomeric HSF1 by some previously reported factors, such as synuclein, Huntingtin (Htt), TDP-43, unfolded protein response (UPR), MB and doxorubicin (DOX), as well as their possible mechanisms, aiming to push the understanding about HSF1 protein stabilization.
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Affiliation(s)
- Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China.
| | - Jingjing Wu
- Department of Cardiology, Suzhou Kowloon Hospital of Shanghai Jiaotong University School of Medicine, #118 Wansheng Street, Suzhou 215021, Jiangsu, China
| | - Li Xu
- Department of Ultrasound, Danyang People's Hospital, #2 Xinmin Western Road, Danyang 212300, Jiangsu, China
| | - Jili Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Zhuo Chen
- Invasive Technology Department, Nantong First People's Hospital, The Second Affiliated Hospital of Nantong University, # 6 North Road Hai'er Xiang, Nantong 226001, Jiangsu, China
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Jiangsu Province, #20Xisi Road, Nantong 226001, Jiangsu, China.
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11
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Hamel E, Royea J, Ongali B, Tong XK. Neurovascular and Cognitive failure in Alzheimer’s Disease: Benefits of Cardiovascular Therapy. Cell Mol Neurobiol 2016; 36:219-32. [DOI: 10.1007/s10571-015-0285-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/06/2015] [Indexed: 12/19/2022]
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12
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Lee JM, Shin MS, Ji ES, Kim TW, Cho HS, Kim CJ, Jang MS, Kim TW, Kim BK, Kim DH. Treadmill exercise improves motor coordination through ameliorating Purkinje cell loss in amyloid beta23-35-induced Alzheimer's disease rats. J Exerc Rehabil 2014; 10:258-64. [PMID: 25426461 PMCID: PMC4237839 DOI: 10.12965/jer.140163] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 10/18/2014] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is a most common age-related neurodegenerative disease. AD is characterized by a progressive loss of neurons causing cognitive dysfunction. The cerebellum is closely associated with integration of movement, including motor coordination, control, and equilibrium. In the present study, we evaluated the effect of tread-mill exercise on the survival of Purkinje neurons in relation with reactive astrocyte in the cerebellum using Aβ25-35-induced AD rats. AD was induced by a bilateral intracerebroventricular (ICV) injection of Aβ25-35. The rats in the exercise groups were forced to run on a motorized treadmill for 30 min once a day for 4 weeks, starting 2 days after Aβ25-35 injection. In the present results, ICV injection of Aβ25-35 deteriorated motor coordination and balance. The number of calbindin-positive cells in the cerebellar vermis was decreased and glial fibrillary acidic protein (GFAP) expression in the cerebellar vermis was increased in the Aβ25-35-induced AD rats. Treadmill exercise improved motor coordination and balance. Treadmill exercise increased the number of Purkinje neurons and suppressed GFAP expression in the cerebellar vermis. The present study demonstrated that treadmill exercises alleviated dysfunction of motor coordination and balance by reduction of Purkinje cell loss through suppressing reactive astrocytes in the cerebellum of AD rats. The present study provides the possibility that treadmill exercise might be an important therapeutic strategy for the symptom improvement of AD patients.
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Affiliation(s)
- Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Mal-Soon Shin
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Eun-Sang Ji
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Han-Sam Cho
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Myung-Soo Jang
- Department of Anesthesiology and Pain Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Tae-Wook Kim
- Department of Physical Education, College of Physical Education, Hanyang University, Seoul, Korea
| | - Bo-Kyun Kim
- KBS Institute of the Sports, Arts and Science, Seoul, Korea
| | - Dong-Hee Kim
- Department of Ophthalmology, Chungju Hospital, College of Medicine, Konkuk University, Chungju, Korea
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13
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Kuwabara Y, Ishizeki M, Watamura N, Toba J, Yoshii A, Inoue T, Ohshima T. Impairments of long-term depression induction and motor coordination precede Aβ accumulation in the cerebellum of APPswe/PS1dE9 double transgenic mice. J Neurochem 2014; 130:432-43. [DOI: 10.1111/jnc.12728] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Revised: 03/23/2014] [Accepted: 03/27/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Yuki Kuwabara
- Laboratory for Molecular Brain Science; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Masato Ishizeki
- Laboratory of Neurophysiology; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Naoto Watamura
- Laboratory for Molecular Brain Science; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Junya Toba
- Laboratory for Molecular Brain Science; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Aya Yoshii
- Laboratory for Molecular Brain Science; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Takafumi Inoue
- Laboratory of Neurophysiology; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
| | - Toshio Ohshima
- Laboratory for Molecular Brain Science; Department of Life Science and Medical Bioscience; Waseda University; Tokyo Japan
- Laboratory for Developmental Neurobiology; RIKEN Brain Science Institute; Wako Saitama Japan
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14
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Li ZH, Ramakrishnan S, Striepen B, Moreno SNJ. Toxoplasma gondii relies on both host and parasite isoprenoids and can be rendered sensitive to atorvastatin. PLoS Pathog 2013; 9:e1003665. [PMID: 24146616 PMCID: PMC3798403 DOI: 10.1371/journal.ppat.1003665] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 08/14/2013] [Indexed: 01/03/2023] Open
Abstract
Intracellular pathogens have complex metabolic interactions with their host cells to ensure a steady supply of energy and anabolic building blocks for rapid growth. Here we use the obligate intracellular parasite Toxoplasma gondii to probe this interaction for isoprenoids, abundant lipidic compounds essential to many cellular processes including signaling, trafficking, energy metabolism, and protein translation. Synthesis of precursors for isoprenoids in Apicomplexa occurs in the apicoplast and is essential. To synthesize longer isoprenoids from these precursors, T. gondii expresses a bifunctional farnesyl diphosphate/geranylgeranyl diphosphate synthase (TgFPPS). In this work we construct and characterize T. gondii null mutants for this enzyme. Surprisingly, these mutants have only a mild growth phenotype and an isoprenoid composition similar to wild type parasites. However, when extracellular, the loss of the enzyme becomes phenotypically apparent. This strongly suggests that intracellular parasite salvage FPP and/or geranylgeranyl diphosphate (GGPP) from the host. We test this hypothesis using inhibitors of host cell isoprenoid synthesis. Mammals use the mevalonate pathway, which is susceptible to statins. We document strong synergy between statin treatment and pharmacological or genetic interference with the parasite isoprenoid pathway. Mice can be cured with atorvastatin (Lipitor) from a lethal infection with the TgFPPs mutant. We propose a double-hit strategy combining inhibitors of host and parasite pathways as a novel therapeutic approach against Apicomplexan parasites. Toxoplasma gondii is an obligate intracellular parasite and is not able to replicate outside the host cell. The parasite lives in a specialized parasitophorous vacuole in contact with the host cytoplasm through the parasitophorous vacuole membrane. It is highly likely that a very active exchange of metabolites occurs between parasite and host cell. We present evidence for this exchange for isoprenoids, abundant lipidic compounds essential to many cellular processes including signaling, trafficking, energy metabolism, and protein translation. Our work shows that intracellular T. gondii tachyzoites are able to salvage farnesyl diphosphate (FPP) and/or geranylgeranyl diphosphate (GGPP) from the host, and the parasite is able to grow even when its endogenous production is shut down. However, when extracellular, the parasite depends entirely on its own production of isoprenoids. We propose to use a combination of inhibitors that would hit both the host and the parasite pathways as a novel therapeutic approach against Toxoplasma gondii that could also work against other Apicomplexan parasites.
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Affiliation(s)
- Zhu-Hong Li
- Center for Tropical and Emerging Global Diseases and Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Srinivasan Ramakrishnan
- Center for Tropical and Emerging Global Diseases and Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Boris Striepen
- Center for Tropical and Emerging Global Diseases and Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Silvia N. J. Moreno
- Center for Tropical and Emerging Global Diseases and Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
- * E-mail:
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15
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Van Rooyen DM, Gan LT, Yeh MM, Haigh WG, Larter CZ, Ioannou G, Teoh NC, Farrell GC. Pharmacological cholesterol lowering reverses fibrotic NASH in obese, diabetic mice with metabolic syndrome. J Hepatol 2013; 59:144-52. [PMID: 23500152 DOI: 10.1016/j.jhep.2013.02.024] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 02/10/2013] [Accepted: 02/25/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS We have recently showed that hyperinsulinemia promotes hepatic free cholesterol (FC) accumulation in obese, insulin-resistant Alms1 mutant (foz/foz) mice with NASH. Here we tested whether cholesterol-lowering drugs reduce stress-activated c-Jun N-terminal kinase (JNK) activation, hepatocyte injury/apoptosis, inflammation, and fibrosis in this metabolic syndrome NASH model. METHODS Female foz/foz and WT mice were fed HF (0.2% cholesterol) 16 weeks, before adding ezetimibe (5 mg/kg), atorvastatin (20 mg/kg), or both to diet, another 8 weeks. Hepatic lipidomic analysis, ALT, liver histology, Sirius Red morphometry, hepatic mRNA and protein expression and immunohistochemistry (IHC) for apoptosis (M30), macrophages (F4/80), and polymorphs (myeloperoxidase) were determined. RESULTS In mice with NASH, ezetimibe/atorvastatin combination normalized hepatic FC but did not alter saturated free fatty acids (FFA) and had minimal effects on other lipids; ezetimibe and atorvastatin had similar but less profound effects. Pharmacological lowering of FC abolished JNK activation, improved serum ALT, apoptosis, liver inflammation/NAFLD activity score, designation as "NASH", macrophage chemotactic protein-1 expression, reduced macrophage and polymorph populations, and liver fibrosis. CONCLUSIONS Cholesterol lowering with ezetimibe/atorvastatin combination reverses hepatic FC but not saturated FFA accumulation. This dampens JNK activation, ALT release, hepatocyte apoptosis, and inflammatory recruitment, with reversal of steatohepatitis pathology and liver fibrosis. Ezetimibe/statin combination is a potent, mechanism-based treatment that could reverse NASH and liver fibrosis.
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Affiliation(s)
- Derrick M Van Rooyen
- Liver Research Group, ANU Medical School at The Canberra Hospital, Garran, ACT, Australia
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16
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Jiang YQ, Wang XL, Cao XH, Ye ZY, Li L, Cai WQ. Increased heat shock transcription factor 1 in the cerebellum reverses the deficiency of Purkinje cells in Alzheimer's disease. Brain Res 2013; 1519:105-11. [PMID: 23665061 DOI: 10.1016/j.brainres.2013.04.059] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 04/23/2013] [Accepted: 04/25/2013] [Indexed: 10/26/2022]
Abstract
Alzheimer's disease (AD) is one of the most debilitating neurodegenerative nerve diseases, seriously affecting one's ability to carry out daily activities. AD is both progressive and incurable, but molecular studies have begun to shed light on the mechanisms that underlie it. Immunochemical staining showed that cell bodies of Purkinje cells in the cerebellum were significantly reduced in AD rats compared with normal rats. Heat shock protein 70 (HSP70) was found to prevent polyglutamine aggregation in Huntington's disease and spinocerebellar ataxias (SCAs) and to relieve symptoms in SCAs and Parkinson's disease. Recently, AD-related phenotypes were found to be suppressed in HSP70 transgenic rats. However, the effects of other HSPs and the mechanisms of HSP-triggered changes in AD are unknown. In this study, we found that expression levels of HSP60, -70, and -90 were downregulated in the cerebella of rats with AD. Furthermore, heat shock factor 1 (HSF1), a key transcription factor for the expression of HSP genes, was found to be greatly decreased in the cerebella of AD rats. Even more interesting, injection of lentivirus vector-HSF1 into the cerebella of AD rats significantly increased HSF1 and HSP expression levels and induced an increase in the number of Purkinje cell bodies. Our findings provide novel evidence that low expression of HSPs in AD rats is dependent on the low expression of HSF1, and increased expression of HSF1 contributes to the reversal of cerebellar Purkinje cell deficiency in AD. Therefore, increasing HSF1 expression is a potential new strategy for the treatment of AD.
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Affiliation(s)
- Yu-Qing Jiang
- Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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Alzheimer's disease biomarkers: correspondence between human studies and animal models. Neurobiol Dis 2013; 56:116-30. [PMID: 23631871 DOI: 10.1016/j.nbd.2013.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 04/11/2013] [Accepted: 04/18/2013] [Indexed: 01/05/2023] Open
Abstract
Alzheimer's disease (AD) represents an escalating global threat as life expectancy and disease prevalence continue to increase. There is a considerable need for earlier diagnoses to improve clinical outcomes. Fluid biomarkers measured from cerebrospinal fluid (CSF) and blood, or imaging biomarkers have considerable potential to assist in the diagnosis and management of AD. An additional important utility of biomarkers is in novel therapeutic development and clinical trials to assess efficacy and side effects of therapeutic interventions. Because many biomarkers are initially examined in animal models, the extent to which markers translate from animals to humans is an important issue. The current review highlights many existing and pipeline biomarker approaches, focusing on the degree of correspondence between AD patients and animal models. The review also highlights the need for greater translational correspondence between human and animal biomarkers.
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18
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Statins and their influence on brain cholesterol. J Clin Lipidol 2011; 5:373-9. [DOI: 10.1016/j.jacl.2011.06.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/01/2011] [Accepted: 06/10/2011] [Indexed: 11/15/2022]
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