1
|
Galland F, de Espindola JS, Sacilotto ES, Almeida LGVC, Morari J, Velloso LA, Dos Santos LD, Rossini BC, Bertoldo Pacheco MT. Digestion of whey peptide induces antioxidant and anti-inflammatory bioactivity on glial cells: Sequences identification and structural activity analysis. Food Res Int 2024; 188:114433. [PMID: 38823827 DOI: 10.1016/j.foodres.2024.114433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Whey derived peptides have shown potential activity improving brain function in pathological condition. However, there is little information about their mechanism of action on glial cells, which have important immune functions in brain. Astrocytes and microglia are essential in inflammatory and oxidative defense that take place in neurodegenerative disease. In this work we evaluate antioxidant and anti-inflammatory potential bioactivity of whey peptide in glial cells. Peptides were formed during simulated gastrointestinal digestion (Infogest protocol), and low molecular weight (<5kDA) peptides (WPHf) attenuated reactive oxygen species (ROS) production induced by hydrogen peroxide stimulus in both cells in dose-dependent manner. WPHf induced an increase in the antioxidant glutathione (GSH) content and prevented GSH reduction induced by lipopolysaccharides (LPS) stimulus in astrocytes cells in a cell specific form. An increase in cytokine mRNA expression (TNFα and IL6) and nitric oxide secretion induced by LPS was attenuated by WPHf pre-treatment in both cells. The inflammatory pathway was dependent on NFκB activation. Bioactive peptide ranking analysis showed positive correlation with hydrophobicity and negative correlation with high molecular weights. The sequence identification revealed 19 peptides cross-referred with bioactive database. Whey peptides were rich in leucine, valine and tyrosine in the C-terminal region and lysine in the N-terminal region. The anti-inflammatory and antioxidant potential of whey peptides were assessed in glia cells and its mechanisms of action were related, such as modulation of antioxidant enzymes and anti-inflammatory pathways. Features of the peptide structure, such as molecular size, hydrophobicity and types of amino acids present in the terminal region are associated to bioactivity.
Collapse
Affiliation(s)
- Fabiana Galland
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil.
| | - Juliana Santos de Espindola
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Eduarda Spagnol Sacilotto
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Lilian Gabriely V C Almeida
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Joseane Morari
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, São Paulo, Brazil
| | - Lício Augusto Velloso
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, São Paulo, Brazil.
| | | | - Bruno Cesar Rossini
- Institute of Biotechnology, São Paulo State University (UNESP), Botucatu, SP 18607-440, Brazil.
| | - Maria Teresa Bertoldo Pacheco
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil.
| |
Collapse
|
2
|
Ma L, Wu Q, You Y, Zhang P, Tan D, Liang M, Huang Y, Gao Y, Ban Y, Chen Y, Yuan J. Neuronal small extracellular vesicles carrying miR-181c-5p contribute to the pathogenesis of epilepsy by regulating the protein kinase C-δ/glutamate transporter-1 axis in astrocytes. Glia 2024; 72:1082-1095. [PMID: 38385571 DOI: 10.1002/glia.24517] [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: 09/25/2023] [Revised: 01/17/2024] [Accepted: 02/05/2024] [Indexed: 02/23/2024]
Abstract
Information exchange between neurons and astrocytes mediated by extracellular vesicles (EVs) is known to play a key role in the pathogenesis of central nervous system diseases. A key driver of epilepsy is the dysregulation of intersynaptic excitatory neurotransmitters mediated by astrocytes. Thus, we investigated the potential association between neuronal EV microRNAs (miRNAs) and astrocyte glutamate uptake ability in epilepsy. Here, we showed that astrocytes were able to engulf epileptogenic neuronal EVs, inducing a significant increase in the glutamate concentration in the extracellular fluid of astrocytes, which was linked to a decrease in glutamate transporter-1 (GLT-1) protein expression. Using sequencing and gene ontology (GO) functional analysis, miR-181c-5p was found to be the most significantly upregulated miRNA in epileptogenic neuronal EVs and was linked to glutamate metabolism. Moreover, we found that neuronal EV-derived miR-181c-5p interacted with protein kinase C-delta (PKCδ), downregulated PKCδ and GLT-1 protein expression and increased glutamate concentrations in astrocytes both in vitro and in vivo. Our findings demonstrated that epileptogenic neuronal EVs carrying miR-181c-5p decrease the glutamate uptake ability of astrocytes, thus promoting susceptibility to epilepsy.
Collapse
Affiliation(s)
- Limin Ma
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Neurology, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Qingyuan Wu
- Department of Neurology, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yu You
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Peng Zhang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dandan Tan
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Minxue Liang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunyi Huang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuan Gao
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuenan Ban
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yangmei Chen
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jinxian Yuan
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
3
|
Chen K, Xu B, Qiu S, Long L, Zhao Q, Xu J, Wang H. Inhibition of phosphodiesterase 4 attenuates aquaporin 4 expression and astrocyte swelling following cerebral ischemia/reperfusion injury. Glia 2024. [PMID: 38785370 DOI: 10.1002/glia.24572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
We have previously shown that phosphodiesterase 4 (PDE4) inhibition protects against neuronal injury in rats following middle cerebral artery occlusion/reperfusion (MCAO/R). However, the effects of PDE4 on brain edema and astrocyte swelling are unknown. In this study, we showed that inhibition of PDE4 by Roflumilast (Roflu) reduced brain edema and brain water content in rats subjected to MCAO/R. Roflu decreased the expression of aquaporin 4 (AQP4), while the levels of phosphorylated protein kinase B (Akt) and forkhead box O3a (FoxO3a) were increased. In addition, Roflu reduced cell volume and the expression of AQP4 in primary astrocytes undergoing oxygen and glucose deprivation/reoxygenation (OGD/R). Consistently, PDE4B knockdown showed similar effects as PDE4 inhibition; and PDE4B overexpression rescued the inhibitory role of PDE4B knockdown on AQP4 expression. We then found that the effects of Roflu on the expression of AQP4 and cell volume were blocked by the Akt inhibitor MK2206. Since neuroinflammation and astrocyte activation are the common events that are observed in stroke, we treated primary astrocytes with interleukin-1β (IL-1β). Astrocytes treated with IL-1β showed decreased AQP4 and phosphorylated Akt and FoxO3a. Roflu significantly reduced AQP4 expression, which was accompanied by increased phosphorylation of Akt and FoxO3a. Furthermore, overexpression of FoxO3a partly reversed the effect of Roflu on AQP4 expression. Our findings suggest that PDE4 inhibition limits ischemia-induced brain edema and astrocyte swelling via the Akt/FoxO3a/AQP4 pathway. PDE4 is a promising target for the intervention of brain edema after cerebral ischemia.
Collapse
Affiliation(s)
- Kechun Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Bingtian Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Shuqin Qiu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Lu Long
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Qian Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jiangping Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, China
- Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou, China
| | - Haitao Wang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, China
- Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou, China
| |
Collapse
|
4
|
Loganathan N, Lieu CV, Belsham DD. Immortalization and Characterization of GFAP-expressing Glial Cells from the Adult Mouse Hypothalamus, Cortex, and Brain Stem. Neuroscience 2024; 551:43-54. [PMID: 38788830 DOI: 10.1016/j.neuroscience.2024.05.022] [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: 03/25/2024] [Revised: 04/23/2024] [Accepted: 05/19/2024] [Indexed: 05/26/2024]
Abstract
The generation of astrocyte cell lines from the hypothalamus is key to study glial involvement in hypothalamic physiology, including energy homeostasis. As such, we immortalized astrocytes from the hypothalamus of an adult male CD-1 mouse using SV40 T-antigen to generate the mHypoA-Ast1 cell line. A comparative approach was taken with two other murine GFAP-expressing cell lines that were also generated in this study: a mixed glial cell line from the cortex (mCortA-G1) and an oligodendrocyte cell line from the brainstem (mBstA-Olig1), as well as an established microglial cell line (IMG). mHypoA-Ast1 cells express GFAP, alongside other astrocytic markers such as Aldh1l1, Aqp4, Glt1 and S100b, and express low levels of microglial, ependymal and oligodendrocyte markers. 100 ng/mL lipopolysaccharide (LPS) elevated mRNA levels of Il6, Il1b, Tnfα and Cxcl5 in mHypoA-Ast1 cells after 4 h, while 50 μM palmitate increased Il6 and Chop mRNA, demonstrating the ability of these cells to respond to inflammatory and nutrient signals. Interestingly, co-culture of mHypoA-Ast1 cells with mHypoE-N46 hypothalamic neuronal cells prevented the palmitate-mediated increase in orexigenic neuropeptide Agrp mRNA in mHypoE-N46 cells, suggesting that this cell line can alter neuronal responses to nutrients. In conclusion, we report mHypoA-Ast1 cells representing a functional astrocyte cell line from the adult mouse brain that can be used to study the complex interactions of hypothalamic cells, as well as dysregulation that may occur in disease states, providing a key tool for neuroendocrine research.
Collapse
Affiliation(s)
- Neruja Loganathan
- Departments of Physiology, University of Toronto, Toronto, ON, Canada
| | - Calvin V Lieu
- Departments of Physiology, University of Toronto, Toronto, ON, Canada
| | - Denise D Belsham
- Departments of Physiology, University of Toronto, Toronto, ON, Canada; Medicine, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
5
|
Von Sulzback Brasil A, Castro Caurio A, Ramos Boldori J, Rosa Rodrigues N, Schmidt L, Casagrande Denardin C, Rossini Augusti P. Urolithin a Partially Protects against Oxidative Damage Induced for Microcistyn-lr in C6 Cells. Chem Biodivers 2024; 21:e202301287. [PMID: 38385951 DOI: 10.1002/cbdv.202301287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 02/23/2024]
Abstract
Microcystin-LR (MIC-LR) is a toxin which the mechanism of intoxication involves oxidative stress. Urolithin A (URO-A) is a metabolic product from the colonic fermentation of ellagic acid with antioxidant potential. This study aimed to evaluate the putative protective effect of URO-A against MIC-LR toxicity in C6 cells. C6 cells were incubated with MIC-LR (1 and 10 μM) and/or URO-A (3, 30, 60 and 100 μM) for 24 h. MIC-LR induced reactive species (RS) generation, depletion of total thiol (SH) groups, and survival loss when compared with the control group. Also, at 10 μM, MIC-LR induced CAT activity inhibition. URO-A caused CAT activity inhibition and showed a trend to increase RS generation (60 and 100 μM) per se. URO-A at 3 μM completely attenuated the RS generation and the impairment in SH groups caused by MIC-LR. Our results demonstrated that URO-A might offer a protective effect against toxicity caused by MIC-LR in glial cells by restoring the levels of RS and thiol groups.
Collapse
Affiliation(s)
- Allana Von Sulzback Brasil
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil Phone
| | - Aline Castro Caurio
- Campus Uruguaiana, Federal University of Pampa (Unipampa), Uruguaiana, Brazil
| | - Jean Ramos Boldori
- Campus Uruguaiana, Federal University of Pampa (Unipampa), Uruguaiana, Brazil
| | | | - Luana Schmidt
- Institute of Basic Health Sciences, Postgraduate Program in Biological Sciences: Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | | | - Paula Rossini Augusti
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil Phone
| |
Collapse
|
6
|
Nazeri Z, Abdeveiszadeh N, Zarezade V, Azizidoost S, Cheraghzadeh M, Aberumand M, Kheirollah A. Investigating the Effect of Aspirin on apoAI-Induced ATP Binding Cassette Transporter 1 Protein Expression and Cholesterol Efflux in Human Astrocytes. Adv Biomed Res 2024; 13:16. [PMID: 38525390 PMCID: PMC10958728 DOI: 10.4103/abr.abr_417_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 09/13/2023] [Accepted: 09/17/2023] [Indexed: 03/26/2024] Open
Abstract
Background Neurons need a high amount of cholesterol to maintain the stability of their membrane-rich structures. Astrocytes synthesize and distribute cholesterol to neurons, and ABCA1 is a key mediator of cholesterol efflux to generate HDL for cholesterol transport in the brain. Several studies imply the effect of aspirin on ABCA1 expression in peripheral cells such as macrophages. Here, we compared the effect of aspirin with apoA-I on ABCA1 protein expression and cholesterol efflux in human astrocytes. Materials and Methods Human astrocytes were cultured, and the effects of aspirin on the expression and protein levels of ABCA1 were investigated through RT-PCR and Western blot analysis. Additionally, the effect of co-treatment with apoA-I and aspirin on ABCA1 protein level and cholesterol efflux was evaluated. Results Dose and time-course experiments showed that the maximum effect of aspirin on ABCA1 expression occurred at a concentration of 0.5 mM after 12 h of incubation. RT-PCR and western blot data showed that aspirin upregulates ABCA1 expression by up to 4.7-fold and its protein level by 67%. Additionally, co-treatment with aspirin and apoA-I increased cholesterol release from astrocytes, indicating an additive effect of aspirin on apoAI-mediated cholesterol efflux. Conclusions The results suggest a potential role of aspirin in increasing ABCA1 expression and cholesterol efflux in astrocytes, similar to the effect of apoA-I. This indicates that aspirin could potentially regulate brain cholesterol balance and can be considered in certain neurological diseases, in particular in some neurological disorders related to cholesterol accumulation such as Alzheimer's disease.
Collapse
Affiliation(s)
- Zahra Nazeri
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Abdeveiszadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vahid Zarezade
- Department of Biochemistry, School of Medicine, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Cheraghzadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Aberumand
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Kheirollah
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- 548-E Borwell Research Building, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
| |
Collapse
|
7
|
Selistre NG, Rodrigues L, Federhen BC, Gayger-Dias V, Taday J, Wartchow KM, Gonçalves CA. S100B Secretion in Astrocytes, Unlike C6 Glioma Cells, Is Downregulated by Lactate. Metabolites 2023; 14:7. [PMID: 38276297 PMCID: PMC10819463 DOI: 10.3390/metabo14010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
S100B is a calcium-binding protein produced and secreted by astrocytes in response to various extracellular stimuli. C6 glioma cells are a lineage commonly employed for astroglial studies due to the expression of astrocyte specific markers and behavior. However, in high-glucose medium, C6 S100B secretion increases, in contrast to the trend in primary astrocyte cultures. Additionally, S100B secretion decreases due to fluorocitrate (FC), a Krebs cycle inhibitor, highlighting a connection between S100B and metabolism. Herein, we investigate the impact of FC on S100B secretion in primary astrocyte cultures, acute hippocampal slices and C6 glioma cells, as well as lactate mediation. Our results demonstrated that C6 responded similarly to astrocytes in various parameters, despite the decrease in S100B secretion, which was inversely observed in astrocytes and slices. Furthermore, FC inversely altered extracellular lactate in both models, suggesting a role for lactate in S100B secretion. This was reinforced by a decrease in S100B secretion in hippocampal slices treated with lactate and its agonist, but not in C6 cells, despite HCAR1 expression. Our findings indicate that extracellular lactate mediates the decrease in S100B secretion in astrocytes exposed to FC. They also emphasize the differences in C6 glioma cells regarding energetic metabolism. The proposed mechanism via HCAR1 provides further compelling evidence of the relationship between S100B and glucose metabolism.
Collapse
Affiliation(s)
- Nicholas Guerini Selistre
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| | - Leticia Rodrigues
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| | - Barbara Carolina Federhen
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| | - Vitor Gayger-Dias
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| | - Jéssica Taday
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| | - Krista Mineia Wartchow
- Brain Health Imaging Institute, Department of Radiology, Weill Cornell Medicine, New York, NY 10044, USA
| | - Carlos-Alberto Gonçalves
- Biochemistry Post-Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90010-150, Brazil; (N.G.S.); (L.R.); (B.C.F.); (V.G.-D.); (J.T.); (C.-A.G.)
| |
Collapse
|
8
|
Lu D, Cai H, Li Y, Chang W, Liu X, Dai Q, Yu W, Chen W, Qiao G, Xie H, Xiao X, Li Z. Investigating the ID3/SLC22A4 as immune-related signatures in ischemic stroke. Aging (Albany NY) 2023; 15:14803-14829. [PMID: 38112574 PMCID: PMC10781493 DOI: 10.18632/aging.205308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/03/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Ischemic stroke (IS) is a fearful disease that can cause a variety of immune events. Nevertheless, precise immune-related mechanisms have yet to be systematically elucidated. This study aimed to identify immune-related signatures using machine learning and to validate them with animal experiments and single cell analysis. METHODS In this study, we screened 24 differentially expressed genes (DEGs) while identifying immune-related signatures that may play a key role in IS development through a comprehensive strategy between least absolute shrinkage and selection operation (LASSO) regression, support vector machine (SVM) and immune-related genes. In addition, we explored immune infiltration using the CIBERSORT algorithm. Finally, we performed validation in mouse brain tissue and single cell analysis. RESULTS We identified 24 DEGs for follow-up analysis. ID3 and SLC22A4 were finally identified as the better immune-related signatures through a comprehensive strategy among DEGs, LASSO, SVM and immune-related genes. RT-qPCR, western blot, and immunofluorescence revealed a significant decrease in ID3 and a significant increase in SLC22A4 in the middle cerebral artery occlusion group. Single cell analysis revealed that ID3 was mainly concentrated in endothelial_2 cells and SLC22A4 in astrocytes in the MCAO group. A CIBERSORT finds significantly altered levels of immune infiltration in IS patients. CONCLUSIONS This study focused on immune-related signatures after stroke and ID3 and SLC22A4 may be new therapeutic targets to promote functional recovery after stroke. Furthermore, the association of ID3 and SLC22A4 with immune cells may be a new direction for post-stroke immunotherapy.
Collapse
Affiliation(s)
- Dading Lu
- Department of Stroke Center, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
- Department of Neurology, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
- Department of Neurosurgery, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Yugang Li
- Department of Stroke Center, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
| | - Wenyuan Chang
- Department of Neurology, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
| | - Xiu Liu
- The First Clinical College, China Medical University, Shenbei, Shenyang, China
| | - Qiwei Dai
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Wanning Yu
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Wangli Chen
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Guomin Qiao
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Haojie Xie
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Xiong Xiao
- Department of Neurosurgery, Shengjing Hospital, Shenyang, China medical University, Heping, Shenyang, China
| | - Zhiqing Li
- Department of Stroke Center, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
- Department of Neurology, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
- Department of Neurosurgery, The First Hospital of China Medical University, Heping, Shenyang, Liaoning, China
| |
Collapse
|
9
|
Leite MC, Galland F, Guerra MC, Rodrigues L, Taday J, Monteforte PT, Hirata H, Gottfried C, Donato R, Smaili S, Gonçalves CA. Astroglial S100B Secretion Is Mediated by Ca 2+ Mobilization from Endoplasmic Reticulum: A Study Using Forskolin and DMSO as Secretagogues. Int J Mol Sci 2023; 24:16576. [PMID: 38068900 PMCID: PMC10706453 DOI: 10.3390/ijms242316576] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
S100B, a homodimeric Ca2+-binding protein, is produced and secreted by astrocytes, and its extracellular levels have been used as a glial marker in brain damage and neurodegenerative and psychiatric diseases; however, its mechanism of secretion is elusive. We used primary astrocyte cultures and calcium measurements from real-time fluorescence microscopy to investigate the role of intracellular calcium in S100B secretion. In addition, the dimethyl sulfoxide (DMSO) effect on S100B was investigated in vitro and in vivo using Wistar rats. We found that DMSO, a widely used vehicle in biological assays, is a powerful S100B secretagogue, which caused a biphasic response of Ca2+ mobilization. Our data show that astroglial S100B secretion is triggered by the increase in intracellular Ca2+ and indicate that this increase is due to Ca2+ mobilization from the endoplasmic reticulum. Also, blocking plasma membrane Ca2+ channels involved in the Ca2+ replenishment of internal stores decreased S100B secretion. The DMSO-induced S100B secretion was confirmed in vivo and in ex vivo hippocampal slices. Our data support a nonclassic vesicular export of S100B modulated by Ca2+, and the results might contribute to understanding the mechanism underlying the astroglial release of S100B.
Collapse
Affiliation(s)
- Marina C. Leite
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| | - Fabiana Galland
- Centro de Ciências e Qualidade dos Alimentos, Instituto de Tecnologia de Alimentos, Campinas 13070-178, SP, Brazil;
| | - Maria Cristina Guerra
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| | - Letícia Rodrigues
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| | - Jéssica Taday
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| | - Priscila T. Monteforte
- Departamento de Ciências Naturais, Universidade Federal de São João Del-Rei, São João Del Rei 36301-160, MG, Brazil;
| | - Hanko Hirata
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo 04044-020, SP, Brazil; (H.H.); (S.S.)
| | - Carmem Gottfried
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| | - Rosario Donato
- Interuniversity Institute of Myology, 06132 Perugia, Italy;
| | - Soraya Smaili
- Departamento de Farmacologia, Universidade Federal de São Paulo, São Paulo 04044-020, SP, Brazil; (H.H.); (S.S.)
| | - Carlos-Alberto Gonçalves
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600-Anexo, Porto Alegre 90035-003, RS, Brazil; (M.C.G.); (L.R.); (J.T.); (C.G.); (C.-A.G.)
| |
Collapse
|
10
|
Gonzalez H, Narasipura SD, Shull T, Shetty A, Teppen TL, Naqib A, Al-Harthi L. An Efficient and Cost-Effective Approach to Generate Functional Human Inducible Pluripotent Stem Cell-Derived Astrocytes. Cells 2023; 12:2357. [PMID: 37830571 PMCID: PMC10571578 DOI: 10.3390/cells12192357] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/11/2023] [Accepted: 09/16/2023] [Indexed: 10/14/2023] Open
Abstract
Human inducible pluripotent stem cell (hiPSC)-derived astrocytes (iAs) are critical to study astrocytes in health and disease. They provide several advantages over human fetal astrocytes in research, which include consistency, availability, disease modeling, customization, and ethical considerations. The generation of iAs is hampered by the requirement of Matrigel matrix coating for survival and proliferation. We provide a protocol demonstrating that human iAs cultured in the absence of Matrigel are viable and proliferative. Further, through a side-by-side comparison of cultures with and without Matrigel, we show significant similarities in astrocyte-specific profiling, including morphology (shape and structure), phenotype (cell-specific markers), genotype (transcriptional expression), metabolic (respiration), and functional aspects (glutamate uptake and cytokine response). In addition, we report that, unlike other CNS cell types, such as neuronal progenitor cells and neurons, iAs can withstand the absence of Matrigel coating. Our study demonstrates that Matrigel is dispensable for the culture of human iPSC-derived astrocytes, facilitating an easy, streamlined, and cost-effective method of generating these cells.
Collapse
Affiliation(s)
- Hemil Gonzalez
- Department of Internal Medicine, Division of Infectious Diseases, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Microbial Pathogens and Immunity, Rush Medical College, Chicago, IL 60612, USA; (S.D.N.); (T.S.)
| | - Srinivas D. Narasipura
- Department of Microbial Pathogens and Immunity, Rush Medical College, Chicago, IL 60612, USA; (S.D.N.); (T.S.)
| | - Tanner Shull
- Department of Microbial Pathogens and Immunity, Rush Medical College, Chicago, IL 60612, USA; (S.D.N.); (T.S.)
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois, Chicago, IL 60608, USA
| | - Amogh Shetty
- Illinois Mathematics and Science Academy, Aurora, IL 60506, USA
| | - Tara L. Teppen
- Molecular Neurobiology Division, Rush Alzheimer’s Disease Center, Rush University, Chicago, IL 60612, USA
| | - Ankur Naqib
- Genome Core Facility, Rush University, Chicago, IL 60612, USA;
| | - Lena Al-Harthi
- Department of Microbial Pathogens and Immunity, Rush Medical College, Chicago, IL 60612, USA; (S.D.N.); (T.S.)
| |
Collapse
|
11
|
Tournier B, Bouteldja F, Amossé Q, Nicolaides A, Duarte Azevedo M, Tenenbaum L, Garibotto V, Ceyzériat K, Millet P. 18 kDa Translocator Protein TSPO Is a Mediator of Astrocyte Reactivity. ACS OMEGA 2023; 8:31225-31236. [PMID: 37663488 PMCID: PMC10468775 DOI: 10.1021/acsomega.3c03368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/01/2023] [Indexed: 09/05/2023]
Abstract
An increase in astrocyte reactivity has been described in Alzheimer's disease and seems to be related to the presence of a pro-inflammatory environment. Reactive astrocytes show an increase in the density of the 18 kDa translocator protein (TSPO), but TSPO involvement in astrocyte functions remains poorly understood. The goal of this study was to better characterize the mechanisms leading to the increase in TSPO under inflammatory conditions and the associated consequences. For this purpose, the C6 astrocytic cell line was used in the presence of lipopolysaccharide (LPS) or TSPO overexpression mediated by the transfection of a plasmid encoding TSPO. The results show that nonlethal doses of LPS induced TSPO expression at mRNA and protein levels through a STAT3-dependent mechanism and increased the number of mitochondria per cell. LPS stimulated reactive oxygen species (ROS) production and decreased glucose consumption (quantified by the [18F]FDG uptake), and these effects were diminished by FEPPA, a TSPO antagonist. The transfection-mediated overexpression of TSPO induced ROS production, and this effect was blocked by FEPPA. In addition, a synergistic effect of overexpression of TSPO and LPS on ROS production was observed. These data show that the increase of TSPO in astrocytic cells is involved in the regulation of glucose metabolism and in the pro-inflammatory response. These data suggest that the overexpression of TSPO by astrocytes in Alzheimer's disease would have rather deleterious effects by promoting the pro-inflammatory response.
Collapse
Affiliation(s)
- Benjamin
B. Tournier
- Department
of Psychiatry, University Hospitals of Geneva, Geneva 1206, Switzerland
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
| | - Farha Bouteldja
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
| | - Quentin Amossé
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
| | - Alekos Nicolaides
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
| | - Marcelo Duarte Azevedo
- Laboratory
of Cellular and Molecular Neurotherapies, Center for Neuroscience
Research, Clinical Neuroscience Department, Lausanne University Hospital, Lausanne 1011, Switzerland
| | - Liliane Tenenbaum
- Laboratory
of Cellular and Molecular Neurotherapies, Center for Neuroscience
Research, Clinical Neuroscience Department, Lausanne University Hospital, Lausanne 1011, Switzerland
| | - Valentina Garibotto
- Division
of Nuclear Medicine, Diagnostic Department, University Hospitals of Geneva, Geneva 1206, Switzerland
- CIBM
Center for BioMedical Imaging; NIMTLab, Faculty of Medicine, University of Geneva, Geneva 1211, Switzerland
| | - Kelly Ceyzériat
- Department
of Psychiatry, University Hospitals of Geneva, Geneva 1206, Switzerland
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
- Division
of Nuclear Medicine, Diagnostic Department, University Hospitals of Geneva, Geneva 1206, Switzerland
- CIBM
Center for BioMedical Imaging; NIMTLab, Faculty of Medicine, University of Geneva, Geneva 1211, Switzerland
| | - Philippe Millet
- Department
of Psychiatry, University Hospitals of Geneva, Geneva 1206, Switzerland
- Department
of Psychiatry, University of Geneva, Geneva 1211, Switzerland
| |
Collapse
|
12
|
Dedoni S, Scherma M, Camoglio C, Siddi C, Dazzi L, Puliga R, Frau J, Cocco E, Fadda P. An overall view of the most common experimental models for multiple sclerosis. Neurobiol Dis 2023:106230. [PMID: 37453561 DOI: 10.1016/j.nbd.2023.106230] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/01/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
Multiple sclerosis (MS) is a complex chronic disease with an unknown etiology. It is considered an inflammatory demyelinating and neurodegenerative disorder of the central nervous system (CNS) characterized, in most cases, by an unpredictable onset of relapse and remission phases. The disease generally starts in subjects under 40; it has a higher incidence in women and is described as a multifactorial disorder due to the interaction between genetic and environmental risk factors. Unfortunately, there is currently no definitive cure for MS. Still, therapies can modify the disease's natural history, reducing the relapse rate and slowing the progression of the disease or managing symptoms. The limited access to human CNS tissue slows down. It limits the progression of research on MS. This limit has been partially overcome over the years by developing various experimental models to study this disease. Animal models of autoimmune demyelination, such as experimental autoimmune encephalomyelitis (EAE) and viral and toxin or transgenic MS models, represent the most significant part of MS research approaches. These models have now been complemented by ex vivo studies, using organotypic brain slice cultures and in vitro, through induced Pluripotent Stem cells (iPSCs). We will discuss which clinical features of the disorders might be reproduced and investigated in vivo, ex vivo, and in vitro in models commonly used in MS research to understand the processes behind the neuropathological events occurring in the CNS of MS patients. The primary purpose of this review is to give the reader a global view of the main paradigms used in MS research, spacing from the classical animal models to transgenic mice and 2D and 3D cultures.
Collapse
Affiliation(s)
- S Dedoni
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Italy.
| | - M Scherma
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Italy.
| | - C Camoglio
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Italy.
| | - C Siddi
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Italy
| | - L Dazzi
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato (Cagliari), Italy.
| | - R Puliga
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato (Cagliari), Italy.
| | - J Frau
- Regional Multiple Sclerosis Center, ASSL Cagliari, ATS Sardegna, Italy
| | - E Cocco
- Regional Multiple Sclerosis Center, ASSL Cagliari, ATS Sardegna, Italy; Department Medical Science and Public Health, University of Cagliari, Italy.
| | - P Fadda
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Italy; Neuroscience Institute, Section of Cagliari, National Research Council of Italy (CNR), Cagliari, Italy.
| |
Collapse
|
13
|
Sovrani V, Bobermin LD, Sesterheim P, Rezena E, Cioccari MS, Netto CA, Gonçalves CA, Leipnitz G, Quincozes-Santos A. Glioprotective effects of resveratrol in hypothalamic astrocyte cultures obtained from interferon receptor knockout (IFNα/βR -/-) mice. In Vitro Cell Dev Biol Anim 2023:10.1007/s11626-023-00777-z. [PMID: 37353697 DOI: 10.1007/s11626-023-00777-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/12/2023] [Indexed: 06/25/2023]
Abstract
Astrocytes play essential roles in the central nervous system (CNS), such as the regulation of glutamate metabolism, antioxidant defenses, and inflammatory/immune responses. Moreover, hypothalamic astrocytes seem to be crucial in the modulation of inflammatory processes, including those related to type I interferon signaling. In this regard, the polyphenol resveratrol has emerged as an important glioprotective molecule to regulate astrocyte functions. Therefore, this study aimed to investigate the immunomodulatory and protective effects of resveratrol in hypothalamic astrocyte cultures obtained from mouse depleted of type I interferon receptors (INF-α/β-/-), a condition that can impair immune and inflammatory functions. Resveratrol upregulated glutamate transporter and glutamine synthetase gene expression, as well as modulated the release of wide range of cytokines and genes involved in the control of inflammatory response, besides the expression of adenosine receptors, which display immunomodulatory functions. Resveratrol also increased genes associated with redox balance, mitochondrial processes, and trophic factors signaling. The putative genes associated with glioprotective effects of resveratrol, including nuclear factor erythroid derived 2 like 2 (Nrf2), heme oxygenase 1 (HO-1), sirtuin 1 (SIRT1), and phosphoinositide 3-kinase (PI3K)/Akt, were further upregulated by resveratrol. Thus, our data show that resveratrol was able to modulate key genes associated with glial functionality and inflammatory response in astrocyte cultures derived from IFNα/βR-/- mice. These data are in agreement with previous results, reinforcing its glioprotective effects even in hypothalamic astrocytes with altered inflammatory and immune signaling. Finally, this polyphenol can prepare astrocytes to better respond to injuries, including those associated with neuroimmunology defects.
Collapse
Affiliation(s)
- Vanessa Sovrani
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Larissa Daniele Bobermin
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patrícia Sesterheim
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Instituto de Cardiologia/Fundação Universitária de Cardiologia, Porto Alegre, RS, Brazil
| | - Ester Rezena
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Matheus Sinhorelli Cioccari
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carlos Alexandre Netto
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Laboratório de Neurotoxicidade e Glioproteção (LABGLIO), Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600 - Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Carlos-Alberto Gonçalves
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Laboratório de Neurotoxicidade e Glioproteção (LABGLIO), Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600 - Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Guilhian Leipnitz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Laboratório de Neurotoxicidade e Glioproteção (LABGLIO), Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600 - Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - André Quincozes-Santos
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Laboratório de Neurotoxicidade e Glioproteção (LABGLIO), Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos, 2600 - Anexo, Porto Alegre, RS, 90035-003, Brazil.
| |
Collapse
|
14
|
Paranjape N, Dean LE, Martinez A, Tjalkens RB, Lehmler HJ, Doorn JA. Structure-Activity Relationship of Lower Chlorinated Biphenyls and Their Human-Relevant Metabolites for Astrocyte Toxicity. Chem Res Toxicol 2023; 36:971-981. [PMID: 37279407 PMCID: PMC10283044 DOI: 10.1021/acs.chemrestox.3c00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Indexed: 06/08/2023]
Abstract
Exposure to polychlorinated biphenyls (PCBs) is associated with developmental neurotoxicity and neurodegenerative disorders; however, the underlying mechanisms of pathogenesis are unknown. Existing literature has focused mainly on using neurons as a model system to study mechanisms of PCB-mediated neurotoxicity, overlooking the role of glial cells, such as astrocytes. As normal brain function is largely astrocyte-dependent, we hypothesize that astrocytes play an important role in PCB-mediated injury to neurons. We assessed the toxicity of two commercial PCB mixtures, Aroclor 1016 and Aroclor 1254, and a non-Aroclor PCB mixture found in residential air called the Cabinet mixture, all of which contain lower chlorinated PCBs (LC-PCBs) found in indoor and outdoor air. We further assessed the toxicity of five abundant airborne LC-PCBs and their corresponding human-relevant metabolites in vitro models of astrocytes, namely, the C6 cell line and primary astrocytes isolated from Sprague-Dawley rats and C57BL/6 mice. PCB52 and its human-relevant hydroxylated and sulfated metabolites were found to be the most toxic compounds. No significant sex-dependent cell viability differences were observed in rat primary astrocytes. Based on the equilibrium partitioning model, it was predicted that the partitioning of LC-PCBs and their corresponding metabolites in biotic and abiotic compartments of the cell culture system is structure-dependent and that the observed toxicity is consistent with this prediction. This study, for the first time, shows that astrocytes are sensitive targets of LC-PCBs and their human-relevant metabolites and that further research to identify mechanistic targets of PCB exposure in glial cells is necessary.
Collapse
Affiliation(s)
- Neha Paranjape
- Department
of Pharmaceutical Sciences & Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
- Department
of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, United States
| | - Laura E. Dean
- Department
of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, United States
| | - Andres Martinez
- Department
of Civil and Environmental Engineering, IIHR-Hydroscience & Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Ronald B. Tjalkens
- Department
of Environmental and Radiological Health Sciences, College of Veterinary
Medicine and Biomedical Sciences, Colorado
State University, Fort Collins, Colorado 80521, United States
| | - Hans-Joachim Lehmler
- Department
of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, United States
| | - Jonathan A. Doorn
- Department
of Pharmaceutical Sciences & Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
| |
Collapse
|
15
|
Roggan MD, Kronenberg J, Wollert E, Hoffmann S, Nisar H, Konda B, Diegeler S, Liemersdorf C, Hellweg CE. Unraveling astrocyte behavior in the space brain: Radiation response of primary astrocytes. Front Public Health 2023; 11:1063250. [PMID: 37089489 PMCID: PMC10116417 DOI: 10.3389/fpubh.2023.1063250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 03/06/2023] [Indexed: 04/09/2023] Open
Abstract
IntroductionExposure to space conditions during crewed long-term exploration missions can cause several health risks for astronauts. Space radiation, isolation and microgravity are major limiting factors. The role of astrocytes in cognitive disturbances by space radiation is unknown. Astrocytes' response toward low linear energy transfer (LET) X-rays and high-LET carbon (12C) and iron (56Fe) ions was compared to reveal possible effects of space-relevant high-LET radiation. Since astronauts are exposed to ionizing radiation and microgravity during space missions, the effect of simulated microgravity on DNA damage induction and repair was investigated.MethodsPrimary murine cortical astrocytes were irradiated with different doses of X-rays, 12C and 56Fe ions at the heavy ion accelerator GSI. DNA damage and repair (γH2AX, 53BP1), cell proliferation (Ki-67), astrocytes' reactivity (GFAP) and NF-κB pathway activation (p65) were analyzed by immunofluorescence microscopy. Cell cycle progression was investigated by flow cytometry of DNA content. Gene expression changes after exposure to X- rays were investigated by mRNA-sequencing. RT-qPCR for several genes of interest was performed with RNA from X-rays- and heavy-ion-irradiated astrocytes: Cdkn1a, Cdkn2a, Gfap, Tnf, Il1β, Il6, and Tgfβ1. Levels of the pro inflammatory cytokine IL-6 were determined using ELISA. DNA damage response was investigated after exposure to X-rays followed by incubation on a 2D clinostat to simulate the conditions of microgravity.ResultsAstrocytes showed distinct responses toward the three different radiation qualities. Induction of radiation-induced DNA double strand breaks (DSBs) and the respective repair was dose-, LET- and time-dependent. Simulated microgravity had no significant influence on DNA DSB repair. Proliferation and cell cycle progression was not affected by radiation qualities examined in this study. Astrocytes expressed IL-6 and GFAP with constitutive NF-κB activity independent of radiation exposure. mRNA sequencing of X-irradiated astrocytes revealed downregulation of 66 genes involved in DNA damage response and repair, mitosis, proliferation and cell cycle regulation.DiscussionIn conclusion, primary murine astrocytes are DNA repair proficient irrespective of radiation quality. Only minor gene expression changes were observed after X-ray exposure and reactivity was not induced. Co-culture of astrocytes with microglial cells, brain organoids or organotypic brain slice culture experiments might reveal whether astrocytes show a more pronounced radiation response in more complex network architectures in the presence of other neuronal cell types.
Collapse
Affiliation(s)
- Marie Denise Roggan
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Jessica Kronenberg
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Microgravity User Support Center (MUSC), German Aerospace Center (DLR), Cologne, Germany
| | - Esther Wollert
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Sven Hoffmann
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Department of Gravitational Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Hasan Nisar
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Department of Medical Sciences, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Bikash Konda
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Sebastian Diegeler
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX, United States
| | - Christian Liemersdorf
- Department of Gravitational Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Christine E. Hellweg
- Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- *Correspondence: Christine E. Hellweg
| |
Collapse
|
16
|
Costa RT, Santos MB, Alberto-Silva C, Carrettiero DC, Ribeiro CAJ. Methylmalonic Acid Impairs Cell Respiration and Glutamate Uptake in C6 Rat Glioma Cells: Implications for Methylmalonic Acidemia. Cell Mol Neurobiol 2023; 43:1163-1180. [PMID: 35674974 DOI: 10.1007/s10571-022-01236-1] [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: 01/07/2022] [Accepted: 05/20/2022] [Indexed: 11/28/2022]
Abstract
Methylmalonic acidemia is an organic acidemia caused by deficient activity of L-methylmalonyl-CoA mutase or its cofactor cyanocobalamin and it is biochemically characterized by an accumulation of methylmalonic acid (MMA) in tissue and body fluids of patients. The main clinical manifestations of this disease are neurological and observable symptoms during metabolic decompensation are encephalopathy, cerebral atrophy, coma, and seizures, which commonly appear in newborns. This study aimed to investigate the toxic effects of MMA in a glial cell line presenting astrocytic features. Astroglial C6 cells were exposed to MMA (0.1-10 mM) for 24 or 48 h and cell metabolic viability, glucose consumption, and oxygen consumption rate, as well as glutamate uptake and ATP content were analyzed. The possible preventive effects of bezafibrate were also evaluated. MMA significantly reduced cell metabolic viability after 48-h period and increased glucose consumption during the same period of incubation. Regarding the energy homeostasis, MMA significantly reduced respiratory parameters of cells after 48-h exposure, indicating that cell metabolism is compromised at resting and reserve capacity state, which might influence the cell capacity to meet energetic demands. Glutamate uptake and ATP content were also compromised after exposure to MMA, which can be influenced energy metabolism impairment, affecting the functionality of the astroglial cells. Our findings suggest that these effects could be involved in the pathophysiology of neurological dysfunction of this disease. Methylmalonic acid compromises mitochondrial functioning leading to reduced ATP production and reduces glutamate uptake by C6 astroglial cells.
Collapse
Affiliation(s)
- Renata T Costa
- Centro de Ciências Naturais E Humanas (CCNH), UFABC - Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo, SP, CEP 09606-045, Brazil
| | - Marcella B Santos
- Centro de Ciências Naturais E Humanas (CCNH), UFABC - Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo, SP, CEP 09606-045, Brazil
| | - Carlos Alberto-Silva
- Centro de Ciências Naturais E Humanas (CCNH), UFABC - Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo, SP, CEP 09606-045, Brazil
| | - Daniel C Carrettiero
- Centro de Ciências Naturais E Humanas (CCNH), UFABC - Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo, SP, CEP 09606-045, Brazil
| | - César A J Ribeiro
- Centro de Ciências Naturais E Humanas (CCNH), UFABC - Universidade Federal do ABC, Alameda da Universidade, s/n, São Bernardo do Campo, SP, CEP 09606-045, Brazil.
| |
Collapse
|
17
|
Non-genomic Effect of Estradiol on the Neurovascular Unit and Possible Involvement in the Cerebral Vascular Accident. Mol Neurobiol 2023; 60:1964-1985. [PMID: 36596967 DOI: 10.1007/s12035-022-03178-7] [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: 09/02/2022] [Accepted: 12/16/2022] [Indexed: 01/05/2023]
Abstract
Cerebrovascular diseases, such as ischemic cerebral vascular accident (CVA), are responsible for causing high rates of morbidity, mortality, and disability in the population. The neurovascular unit (NVU) during and after ischemic CVA plays crucial roles in cell regulation and preservation, the immune and inflammatory response, and cell and/or tissue survival and repair. Cellular responses to 17β-estradiol (E2) can be triggered by two mechanisms: one called classical or genomic, which is due to the activation of the "classical" nuclear estrogen receptors α (ERα) and β (ERβ), and the non-genomic or rapid mechanism, which is due to the activation of the G protein-coupled estrogen receptor 1 (GPER) that is located in the plasma membrane and some in intracellular membranes, such as in the Golgi apparatus and endoplasmic reticulum. Nuclear receptors can regulate gene expression and cellular functions. On the contrary, activating the GPER by E2 and/or its G-1 agonist triggers several rapid cell signaling pathways. Therefore, E2 or its G-1 agonist, by mediating GPER activation and/or expression, can influence several NVU cell types. Most studies argue that the activation of the GPER may be used as a potential therapeutic target in various pathologies, such as CVA. Thus, with this review, we aimed to summarize the existing literature on the role of GPER mediated by E2 and/or its agonist G-1 in the physiology and pathophysiology of NVU.
Collapse
|
18
|
Expression analysis and targets prediction of microRNAs in OGD/R treated astrocyte-derived exosomes by smallRNA sequencing. Genomics 2023; 115:110594. [PMID: 36863417 DOI: 10.1016/j.ygeno.2023.110594] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/03/2023] [Accepted: 02/26/2023] [Indexed: 03/04/2023]
Abstract
Astrocytes activate and crosstalk with neurons influencing inflammatory responses following ischemic stroke. The distribution, abundance, and activity of microRNAs in astrocytes-derived exosomes after ischemic stroke remains largely unknown. In this study, exosomes were extracted from primary cultured mouse astrocytes via ultracentrifugation, and exposed to oxygen glucose deprivation/re‑oxygenation injury to mimic experimental ischemic stroke. SmallRNAs from astrocyte-derived exosomes were sequenced, and differentially expressed microRNAs were randomly selected and verified by stem-loop real time quantitative polymerase chain reaction. We found that 176 microRNAs, including 148 known and 28 novel microRNAs, were differentially expressed in astrocyte-derived exosomes following oxygen glucose deprivation/re‑oxygenation injury. In gene ontology enrichment, Kyoto encyclopedia of genes and genomes pathway analyses, and microRNA target gene prediction analyses, these alteration in microRNAs were associated to a broad spectrum of physiological functions including signaling transduction, neuroprotection and stress responses. Our findings warrant further investigating of these differentially expressed microRNAs in human diseases particularly ischemic stroke.
Collapse
|
19
|
Intrahippocampal Inoculation of Aβ 1-42 Peptide in Rat as a Model of Alzheimer's Disease Identified MicroRNA-146a-5p as Blood Marker with Anti-Inflammatory Function in Astrocyte Cells. Cells 2023; 12:cells12050694. [PMID: 36899831 PMCID: PMC10000752 DOI: 10.3390/cells12050694] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/25/2023] Open
Abstract
Circulating microRNAs (miRNAs) have aroused a lot of interest as reliable blood diagnostic biomarkers of Alzheimer's disease (AD). Here, we investigated the panel of expressed blood miRNAs in response to aggregated Aβ1-42 peptides infused in the hippocampus of adult rats to mimic events of the early onset of non-familial AD disorder. Aβ1-42 peptides in the hippocampus led to cognitive impairments associated with an astrogliosis and downregulation of circulating miRNA-146a-5p, -29a-3p, -29c-3p, -125b-5p, and-191-5p. We established the kinetics of expression of selected miRNAs and found differences with those detected in the APPswe/PS1dE9 transgenic mouse model. Of note, miRNA-146a-5p was exclusively dysregulated in the Aβ-induced AD model. The treatment of primary astrocytes with Aβ1-42 peptides led to miRNA-146a-5p upregulation though the activation of the NF-κB signaling pathway, which in turn downregulated IRAK-1 but not TRAF-6 expression. As a consequence, no induction of IL-1β, IL-6, or TNF-α was detected. Astrocytes treated with a miRNA-146-5p inhibitor rescued IRAK-1 and changed TRAF-6 steady-state levels that correlated with the induction of IL-6, IL-1β, and CXCL1 production, indicating that miRNA-146a-5p operates anti-inflammatory functions through a NF-κB pathway negative feedback loop. Overall, we report a panel of circulating miRNAs that correlated with Aβ1-42 peptides' presence in the hippocampus and provide mechanistic insights into miRNA-146a-5p biological function in the development of the early stage of sporadic AD.
Collapse
|
20
|
Liu B, Liu G, Li C, Liu S, Sun D. Resection of Scar Tissue in Rats With Spinal Cord Injury Can Promote the Expression of βⅢ-tubulin in the Injured Area. World Neurosurg 2023; 170:e115-e126. [PMID: 36280047 DOI: 10.1016/j.wneu.2022.10.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Previous research shows that scar tissue formed in the injured area after spinal cord injury blocks nerve regeneration and functional recovery. However, those researchers tried to prevent the formation of scar after spinal cord injury to promote nerve regeneration, but it ran counter to their desire, indicating that the formation of scar might play a role in functional recovery after spinal cord injury. METHODS To investigate roles of scar formation on functional repair after spinal cord injury, we selected several different key time points to resect the scar tissue formed after spinal cord injury based on the rat models of the T8-T9 transection injury of spinal cord. First, the recovery of motor function was evaluated by Basso Beattie Bresnahan score and electrophysiologic examination; second, the pathologic features of functional recovery were analyzed mainly by immunofluorescence βⅢ-tubulin staining; finally, the genes related to the recovery of motor function were predicted by high-throughput sequencing analysis. RESULTS Immunofluorescence results showed that the resection of scar tissue promoted significantly the recovery of motor function and the expression of βⅢ-tubulin in the injured area in the second week after spinal cord injury. Furthermore, RNA-seq studies showed that Tubb3 and Tubb6 gene expression and other neural regeneration pathways were significantly different in the tissue before and after early resection. CONCLUSIONS Excision of scar tissue in the second week promoted nerve regeneration after spinal cord injury. Tubb3 and Tubb6 genes might be the potential targets for spinal cord injury therapy in our study.
Collapse
Affiliation(s)
- Baoguo Liu
- College of Pharmacy, Jilin University, Changchun, China
| | - Guoqing Liu
- Cell Therapy Center, Xintai Hospital of Traditional Chinese Medicine, Taian, China
| | - Changyang Li
- Cell Therapy Center, Xintai Hospital of Traditional Chinese Medicine, Taian, China
| | - Sumei Liu
- College of Pharmacy, Jilin University, Changchun, China; Cell Therapy Center, Xuanwu Hospital Capital Medical University, Beijing, China.
| | - Dejun Sun
- College of Pharmacy, Jilin University, Changchun, China
| |
Collapse
|
21
|
Rubio-Hernández EI, Comas-García M, Coronado-Ipiña MA, Colunga-Saucedo M, González Sánchez HM, Castillo CG. Astrocytes derived from neural progenitor cells are susceptible to Zika virus infection. PLoS One 2023; 18:e0283429. [PMID: 36989308 PMCID: PMC10057746 DOI: 10.1371/journal.pone.0283429] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 03/08/2023] [Indexed: 03/30/2023] Open
Abstract
Zika virus (ZIKV) was first isolated in 1947. From its isolation until 2007, symptoms of ZIKV-caused disease were limited (e.g., fever, hives, and headache); however, during the epidemic in Brazil in 2014, ZIKV infection caused Guillain-Barré syndrome in adults and microcephaly in fetuses and infants of women infected during pregnancy. The neurovirulence of ZIKV has been studied using neural progenitor cells (NPCs), brain organoids, neurons, and astrocytes. NPCs and astrocytes appear to be the most susceptible cells of the Central Nervous System to ZIKV infection. In this work, we aimed to develop a culture of astrocytes derived from a human NPC cell line. We analyze how ZIKV affects human astrocytes and demonstrate that 1) ZIKV infection reduces cell viability, increases the production of Reactive Oxygen Species (ROS), and results in high viral titers; 2) there are changes in the expression of genes that facilitate the entry of the virus into the cells; 3) there are changes in the expression of genes involved in the homeostasis of the glutamatergic system; and 4) there are ultrastructural changes in mitochondria and lipid droplets associated with production of virions. Our findings reveal new evidence of how ZIKV compromises astrocytic functionality, which may help understand the pathophysiology of ZIKV-associated congenital disease.
Collapse
Affiliation(s)
- Edson Iván Rubio-Hernández
- Laboratorio de Células Neurales Troncales Humanas, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología-Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Mauricio Comas-García
- Sección de Microscopia de Alta Resolución, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Miguel Angel Coronado-Ipiña
- Sección de Microscopia de Alta Resolución, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Mayra Colunga-Saucedo
- Sección de Genómica Médica, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Hilda Minerva González Sánchez
- Cátedra CONACYT- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Claudia G Castillo
- Laboratorio de Células Neurales Troncales Humanas, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología-Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| |
Collapse
|
22
|
Kwon OY, Lee SH. Ishige okamurae Attenuates Neuroinflammation and Cognitive Deficits in Mice Intracerebroventricularly Injected with LPS via Regulating TLR-4/MyD88-Dependent Pathways. Antioxidants (Basel) 2022; 12:antiox12010078. [PMID: 36670940 PMCID: PMC9854571 DOI: 10.3390/antiox12010078] [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: 12/07/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
Neuroinflammation is one of the critical causes of neuronal loss and cognitive impairment. We aimed to evaluate the anti-neuroinflammatory properties of Ishige okamuae using mice intracerebroventricularly injected with lipopolysaccharides (LPS) and LPS-treated C6 glioma cells. We found that the short- and long-term memory deficits of LPS-injected mice were improved by oral administration of Ishige okamurae extracts (IOE). LPS-induced neuronal loss, increase in amyloid-β plaque, and expression of COX-2 and iNOS were restored by IOE. In addition, LPS-induced activation of Toll-like receptor-4 (TLR-4) and its downstream molecules, such as MyD88, NFκB, and mitogen-activated protein kinases (MAPKs), were significantly attenuated in the brains of mice fed with IOE. We found that pretreatment of IOE to C6 glioma cells ameliorated LPS-induced expression of TLR-4 and its inflammatory cascades, such as MyD88 expression, reactive oxygen species production, MAPKs phosphorylation, and NFκB phosphorylation with consequent downregulation of COX-2, iNOS, proinflammatory cytokines, and nitric oxide expression. Furthermore, IOE (0.2 µg/mL) was found to have equivalent efficacy with 10 μM of MyD88 inhibitor in preventing LPS-induced inflammatory responses in C6 glioma cells. Taken together, these results strongly suggest that IOE could be developed as a promising anti-neuroinflammatory agent which is able to control the TLR-4/MyD88-dependent signaling pathways.
Collapse
|
23
|
Hohmann U, von Widdern JC, Ghadban C, Giudice MCL, Lemahieu G, Cavalcanti-Adam EA, Dehghani F, Hohmann T. Jamming Transitions in Astrocytes and Glioblastoma Are Induced by Cell Density and Tension. Cells 2022; 12:cells12010029. [PMID: 36611824 PMCID: PMC9818602 DOI: 10.3390/cells12010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/07/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Collective behavior of cells emerges from coordination of cell-cell-interactions and is important to wound healing, embryonic and tumor development. Depending on cell density and cell-cell interactions, a transition from a migratory, fluid-like unjammed state to a more static and solid-like jammed state or vice versa can occur. Here, we analyze collective migration dynamics of astrocytes and glioblastoma cells using live cell imaging. Furthermore, atomic force microscopy, traction force microscopy and spheroid generation assays were used to study cell adhesion, traction and mechanics. Perturbations of traction and adhesion were induced via ROCK or myosin II inhibition. Whereas astrocytes resided within a non-migratory, jammed state, glioblastoma were migratory and unjammed. Furthermore, we demonstrated that a switch from an unjammed to a jammed state was induced upon alteration of the equilibrium between cell-cell-adhesion and tension from adhesion to tension dominated, via inhibition of ROCK or myosin II. Such behavior has implications for understanding the infiltration of the brain by glioblastoma cells and may help to identify new strategies to develop anti-migratory drugs and strategies for glioblastoma-treatment.
Collapse
Affiliation(s)
- Urszula Hohmann
- Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Julian Cardinal von Widdern
- Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Chalid Ghadban
- Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Maria Cristina Lo Giudice
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, 69120 Heidelberg, Germany
| | - Grégoire Lemahieu
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, 69120 Heidelberg, Germany
| | | | - Faramarz Dehghani
- Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Tim Hohmann
- Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
- Correspondence:
| |
Collapse
|
24
|
Cholesterol-induced robust Ca oscillation in astrocytes required for survival and lipid droplet formation in high-cholesterol condition. iScience 2022; 25:105138. [PMID: 36185358 PMCID: PMC9523397 DOI: 10.1016/j.isci.2022.105138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 08/08/2022] [Accepted: 09/10/2022] [Indexed: 11/22/2022] Open
Abstract
Cholesterol, one of the major cell membrane components, stabilizes membrane fluidity and regulates signal transduction. Beside its canonical roles, cholesterol has been reported to directly activate signaling pathways such as hedgehog (Hh). We recently found that astrocytes, one of the glial cells, respond to Hh pathway stimulation by Ca signaling. These notions led us to test if extracellularly applied cholesterol triggers Ca signaling in astrocytes. Here, we found that cholesterol application induces robust Ca oscillation only in astrocytes with different properties from the Hh-induced Ca response. The Ca oscillation has a long delay which corresponds to the onset of cholesterol accumulation in the plasma membrane. Blockade of the Ca oscillation resulted in enhancement of astrocytic cell death and disturbance of lipid droplet formation, implying a possibility that the cholesterol-induced Ca oscillation plays important roles in astrocytic survival and cholesterol handling under pathological conditions of cholesterol load such as demyelination. Robust Ca oscillation by cholesterol in astrocytes but not in neurons and microglia Cholesterol-induced Ca oscillation relates to membrane cholesterol accumulation The Ca oscillation is driven via the PLC-IP3 signaling pathway Ca oscillation inhibition leads to astrocytic death and lipid droplet malformation
Collapse
|
25
|
Kawakita S, Mandal K, Mou L, Mecwan MM, Zhu Y, Li S, Sharma S, Hernandez AL, Nguyen HT, Maity S, de Barros NR, Nakayama A, Bandaru P, Ahadian S, Kim HJ, Herculano RD, Holler E, Jucaud V, Dokmeci MR, Khademhosseini A. Organ-On-A-Chip Models of the Blood-Brain Barrier: Recent Advances and Future Prospects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201401. [PMID: 35978444 PMCID: PMC9529899 DOI: 10.1002/smll.202201401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/22/2022] [Indexed: 05/09/2023]
Abstract
The human brain and central nervous system (CNS) present unique challenges in drug development for neurological diseases. One major obstacle is the blood-brain barrier (BBB), which hampers the effective delivery of therapeutic molecules into the brain while protecting it from blood-born neurotoxic substances and maintaining CNS homeostasis. For BBB research, traditional in vitro models rely upon Petri dishes or Transwell systems. However, these static models lack essential microenvironmental factors such as shear stress and proper cell-cell interactions. To this end, organ-on-a-chip (OoC) technology has emerged as a new in vitro modeling approach to better recapitulate the highly dynamic in vivo human brain microenvironment so-called the neural vascular unit (NVU). Such BBB-on-a-chip models have made substantial progress over the last decade, and concurrently there has been increasing interest in modeling various neurological diseases such as Alzheimer's disease and Parkinson's disease using OoC technology. In addition, with recent advances in other scientific technologies, several new opportunities to improve the BBB-on-a-chip platform via multidisciplinary approaches are available. In this review, an overview of the NVU and OoC technology is provided, recent progress and applications of BBB-on-a-chip for personalized medicine and drug discovery are discussed, and current challenges and future directions are delineated.
Collapse
Affiliation(s)
- Satoru Kawakita
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Lei Mou
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
- Department of Clinical Laboratory, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, Guangdong, 510150, P. R. China
| | | | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Shaopei Li
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Saurabh Sharma
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | | | - Huu Tuan Nguyen
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Surjendu Maity
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | | | - Aya Nakayama
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Praveen Bandaru
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Rondinelli Donizetti Herculano
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
- Department of Bioprocess and Biotechnology Engineering, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, 14801-902, Brazil
| | - Eggehard Holler
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| | | | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA
| |
Collapse
|
26
|
Leveraging nano-engineered mesenchymal stem cells for intramedullary spinal cord tumor treatment. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
27
|
de Souza Almeida RR, Bobermin LD, Parmeggiani B, Wartchow KM, Souza DO, Gonçalves CA, Wajner M, Leipnitz G, Quincozes-Santos A. Methylmalonic acid induces inflammatory response and redox homeostasis disruption in C6 astroglial cells: potential glioprotective roles of melatonin and resveratrol. Amino Acids 2022; 54:1505-1517. [PMID: 35927507 DOI: 10.1007/s00726-022-03191-z] [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: 07/28/2021] [Accepted: 07/22/2022] [Indexed: 11/24/2022]
Abstract
Methylmalonic acidemia is a neurometabolic disorder biochemically characterized by the accumulation of methylmalonic acid (MMA) in different tissues, including the central nervous system (CNS). In this sense, it has been shown that high levels of this organic acid have a key role in the progressive neurological deterioration in patients. Astroglial cells actively participate in a wide range of CNS functions, such as antioxidant defenses and inflammatory response. Considering the role of these cells to maintain brain homeostasis, in the present study, we investigated the effects of MMA on glial parameters, focusing on redox homeostasis and inflammatory process, as well as putative mediators of these events in C6 astroglial cells. MMA decreased cell viability, glutathione levels, and antioxidant enzyme activities, increased inflammatory response, and changed the expression of nuclear factor erythroid 2-related factor 2 (Nrf2), nuclear factor kappa B (NFκB), peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), inducible nitric oxide synthase (iNOS), cyclooxygenase 2 (COX-2), and adenosine receptors, suggesting that these transcriptional factors and proteins may underlie the glial responses induced by MMA. Moreover, we also demonstrated the protective roles of melatonin and resveratrol against MMA-induced inflammation and decrease in glutathione levels. In summary, our findings support the hypothesis that astroglial changes are associated with pathogenesis of methylmalonic acidemia. In addition, we showed that these cells might be potential targets for preventive/therapeutic strategies by using molecules, such as melatonin and resveratrol, which mediated glioprotection in this inborn error of metabolism.
Collapse
Affiliation(s)
- Rômulo Rodrigo de Souza Almeida
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Larissa Daniele Bobermin
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Belisa Parmeggiani
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Krista Minéia Wartchow
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Diogo Onofre Souza
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - Carlos-Alberto Gonçalves
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - Moacir Wajner
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - Guilhian Leipnitz
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - André Quincozes-Santos
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, RS, Brazil. .,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal Do Rio Grande Do Sul, Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil.
| |
Collapse
|
28
|
High-Frequency Repetitive Transcranial Magnetic Stimulation Regulates Astrocyte Activation by Modulating the Endocannabinoid System in Parkinson’s Disease. Mol Neurobiol 2022; 59:5121-5134. [DOI: 10.1007/s12035-022-02879-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 05/15/2022] [Indexed: 10/18/2022]
|
29
|
Belo do Nascimento I, Verfaillie M, Ates G, Beckers P, Joris V, Desmet N, Massie A, Hermans E. AMPK Modulates the Metabolic Adaptation of C6 Glioma Cells in Glucose-Deprived Conditions without Affecting Glutamate Transport. Cells 2022; 11:cells11111800. [PMID: 35681495 PMCID: PMC9180554 DOI: 10.3390/cells11111800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/26/2022] [Accepted: 05/26/2022] [Indexed: 02/04/2023] Open
Abstract
Energy homeostasis in the central nervous system largely depends on astrocytes, which provide metabolic support and protection to neurons. Astrocytes also ensure the clearance of extracellular glutamate through high-affinity transporters, which indirectly consume ATP. Considering the role of the AMP-activated protein kinase (AMPK) in the control of cell metabolism, we have examined its implication in the adaptation of astrocyte functions in response to a metabolic stress triggered by glucose deprivation. We genetically modified the astrocyte-like C6 cell line to silence AMPK activity by overexpressing a dominant negative mutant of its catalytic subunit. Upon glucose deprivation, we found that C6 cells maintain stable ATP levels and glutamate uptake capacity, highlighting their resilience during metabolic stress. In the same conditions, cells with silenced AMPK activity showed a reduction in motility, metabolic activity, and ATP levels, indicating that their adaptation to stress is compromised. The rate of ATP production remained, however, unchanged by AMPK silencing, suggesting that AMPK mostly influences energy consumption during stress conditions in these cells. Neither AMPK modulation nor prolonged glucose deprivation impaired glutamate uptake. Together, these results indicate that AMPK contributes to the adaptation of astrocyte metabolism triggered by metabolic stress, but not to the regulation of glutamate transport.
Collapse
Affiliation(s)
- Inês Belo do Nascimento
- Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium; (I.B.d.N.); (M.V.); (P.B.); (N.D.)
| | - Marie Verfaillie
- Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium; (I.B.d.N.); (M.V.); (P.B.); (N.D.)
| | - Gamze Ates
- Center for Neurosciences, Neuro-Aging & Viro-Immunotherapy, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium; (G.A.); (A.M.)
| | - Pauline Beckers
- Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium; (I.B.d.N.); (M.V.); (P.B.); (N.D.)
| | - Virginie Joris
- Pole of Pharmacology and Therapeutics, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium;
| | - Nathalie Desmet
- Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium; (I.B.d.N.); (M.V.); (P.B.); (N.D.)
| | - Ann Massie
- Center for Neurosciences, Neuro-Aging & Viro-Immunotherapy, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium; (G.A.); (A.M.)
| | - Emmanuel Hermans
- Institute of Neuroscience, Université Catholique de Louvain, 1200 Brussels, Belgium; (I.B.d.N.); (M.V.); (P.B.); (N.D.)
- Correspondence: ; Tel.: +32-2764-9339
| |
Collapse
|
30
|
Deng Y, Song H, Xiao Y, Zhao Y, Chu L, Ding J, Shen X, Qi X. High-Throughput Sequencing to Investigate lncRNA-circRNA-miRNA-mRNA Networks Underlying the Effects of Beta-Amyloid Peptide and Senescence on Astrocytes. Front Genet 2022; 13:868856. [PMID: 35646066 PMCID: PMC9133720 DOI: 10.3389/fgene.2022.868856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/25/2022] [Indexed: 11/21/2022] Open
Abstract
Astrocytes are widely distributed in the central nervous system and play an essential role in the function of neuronal cells. Associations between astrocytes and Alzheimer’s disease (AD) have been noted, and recent work has implicated circular RNA (circRNA) and long non-coding RNA (lncRNA) in the development of AD. However, few reports have investigated which lncRNA and circRNA are involved in the influence of amyloid beta (Aβ) and senescence on astrocytes. This study therefore examines changes at the transcriptome level to explore the effects of Aβ and senescence on astrocytes. Primary cultured astrocytes were treated with Aβ and cultured for 90 days in vitro, and high-throughput sequencing was performed to identify differentially expressed RNAs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses revealed that differentially expressed genes were associated with the focal adhesion signaling pathway, extracellular matrix receptor signaling pathway, and the extracellular matrix. The protein–protein interaction network was then constructed, and 103 hub genes were screened out; most of these were strongly associated with the expression of the extracellular matrix, extracellular matrix receptor signaling pathway, and focal adhesion. Two competing endogenous RNA networks were constructed based on the selected hub gene and differential RNAs, and we identified multiple competing endogenous RNA regulatory axes that were involved in the effects of Aβ and senescence on astrocytes. This is the first study to explore the molecular regulation mechanism of Aβ and senescence on primary astrocytes from the perspective of the whole transcriptome. In uncovering the signaling pathways and biological processes involved in the effects of Aβ and senescence on astrocytes, this work provides novel insights into the pathogenesis of AD at the level of competing endogenous RNA network regulation.
Collapse
Affiliation(s)
- Yuxin Deng
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Hui Song
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
| | - Yan Xiao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
| | - Yi Zhao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
| | - Liangzao Chu
- Department of Neurosurgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jiuyang Ding
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Xiangchun Shen
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, China
- *Correspondence: Xiangchun Shen, ; Xiaolan Qi,
| | - Xiaolan Qi
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang, China
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Translational Medicine Research Center, Guizhou Medical University, Guiyang, China
- *Correspondence: Xiangchun Shen, ; Xiaolan Qi,
| |
Collapse
|
31
|
Dolotov OV, Inozemtseva LS, Myasoedov NF, Grivennikov IA. Stress-Induced Depression and Alzheimer's Disease: Focus on Astrocytes. Int J Mol Sci 2022; 23:4999. [PMID: 35563389 PMCID: PMC9104432 DOI: 10.3390/ijms23094999] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 02/06/2023] Open
Abstract
Neurodegenerative diseases and depression are multifactorial disorders with a complex and poorly understood physiopathology. Astrocytes play a key role in the functioning of neurons in norm and pathology. Stress is an important factor for the development of brain disorders. Here, we review data on the effects of stress on astrocyte function and evidence of the involvement of astrocyte dysfunction in depression and Alzheimer's disease (AD). Stressful life events are an important risk factor for depression; meanwhile, depression is an important risk factor for AD. Clinical data indicate atrophic changes in the same areas of the brain, the hippocampus and prefrontal cortex (PFC), in both pathologies. These brain regions play a key role in regulating the stress response and are most vulnerable to the action of glucocorticoids. PFC astrocytes are critically involved in the development of depression. Stress alters astrocyte function and can result in pyroptotic death of not only neurons, but also astrocytes. BDNF-TrkB system not only plays a key role in depression and in normalizing the stress response, but also appears to be an important factor in the functioning of astrocytes. Astrocytes, being a target for stress and glucocorticoids, are a promising target for the treatment of stress-dependent depression and AD.
Collapse
Affiliation(s)
- Oleg V. Dolotov
- Institute of Molecular Genetics of National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia; (O.V.D.); (L.S.I.); (N.F.M.)
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 119234 Moscow, Russia
| | - Ludmila S. Inozemtseva
- Institute of Molecular Genetics of National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia; (O.V.D.); (L.S.I.); (N.F.M.)
| | - Nikolay F. Myasoedov
- Institute of Molecular Genetics of National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia; (O.V.D.); (L.S.I.); (N.F.M.)
| | - Igor A. Grivennikov
- Institute of Molecular Genetics of National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia; (O.V.D.); (L.S.I.); (N.F.M.)
| |
Collapse
|
32
|
Bang SI, Kim HY, Seo WT, Lee AY, Cho EJ. Mulberry vinegar attenuates lipopolysaccharide and interferon gamma-induced inflammatory responses in C6 glial cells. J Food Biochem 2022; 46:e14197. [PMID: 35471556 DOI: 10.1111/jfbc.14197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/13/2022] [Accepted: 04/05/2022] [Indexed: 11/29/2022]
Abstract
The present study evaluated the effect of mulberry vinegar (MV) on the regulation of the inflammatory responses using C6 glial cells. Treatment with lipopolysaccharide (LPS) and interferon-γ (IFN-γ) induced the nitric oxide and reactive oxygen species generation, while pre-incubation with MV inhibited these formations in a concentration-dependent manner. MV treatment also decreased the production of pro-inflammatory cytokines, such as interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α in C6 glial cells stimulated by LPS/IFN-γ. Compared to the LPS/IFN-γ-treated control group, the MV-treated group exerts downregulation in the protein expressions of inducible nitric oxide synthase and cyclooxygenase-2, through inhibition of nuclear factor-κB activation. Protein expressions of glial fibrillary acidic protein and ionized calcium-binding adapter molecule 1 were also decreased in the MV-treated group. These findings suggest that MV prevents neuroinflammation by regulating the NF-κB signaling pathway and glial activation. PRACTICAL APPLICATION: Mulberry fruits (Morus alba L.) have been commonly consumed as juice or jam. It is a rich source of anthocyanins that might be associated with beneficial effects on human health, including the anti-oxidant, anti-inflammatory, anti-obesity, and anti-diabetic effects. Mulberry vinegar was produced by alcohol and acetic fermentation of mulberry juice, and they possessed a protective effect against LPS/IFN-γ-stimulated inflammatory responses in glial cells via regulation of glial activation and NF-κB signaling pathway (i.e., downregulation of iNOS, COX-2, TLR4, p-IκB, and NF-κB p65 protein expressions). Although further research especially animal and clinical trials are still necessary, the present study will be helpful to scale-up the production of functional vinegar with neuroprotective and anti-inflammatory properties using mulberry.
Collapse
Affiliation(s)
- Se In Bang
- Department of Food Science and Nutrition, Pusan National University, Busan, South Korea
| | - Hyun Young Kim
- Department of Food Science and Nutrition, Gyeongsang National University, Jinju, South Korea
| | - Weon Tack Seo
- Department of Food Science and Nutrition, Gyeongsang National University, Jinju, South Korea
| | - Ah Young Lee
- Department of Food Science and Nutrition, Gyeongsang National University, Jinju, South Korea
| | - Eun Ju Cho
- Department of Food Science and Nutrition, Pusan National University, Busan, South Korea
| |
Collapse
|
33
|
Gao P, Wang Z, Lei M, Che J, Zhang S, Zhang T, Hu Y, Shi L, Cui L, Liu J, Noda M, Peng Y, Long J. Daphnetin ameliorates Aβ pathogenesis via STAT3/GFAP signaling in an APP/PS1 double-transgenic mouse model of Alzheimer's disease. Pharmacol Res 2022; 180:106227. [PMID: 35452800 DOI: 10.1016/j.phrs.2022.106227] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/05/2022] [Accepted: 04/17/2022] [Indexed: 12/30/2022]
Abstract
Alzheimer's disease (AD) has become a major public health problem that affects the elderly population. Therapeutic compounds with curative effects are not available due to the complex pathogenesis of AD. Daphnetin, a natural coumarin derivative and inhibitor of various kinases, has anti-inflammatory and antioxidant activities. In this study, we found that daphnetin improved spatial learning and memory in an amyloid precursor protein (APP)/presenilin 1 (PS1) double-transgenic mouse model of AD. Daphnetin markedly decreased the levels of amyloid-β peptide 1-40 (Aβ40) and 1-42 (Aβ42) in the cerebral cortex, downregulated the expressions of enzymes involved in APP processing, e.g., beta-site APP-cleaving enzyme (BACE), nicastrin and presenilin enhancer protein 2 (PEN2). We further found the reduced serum levels of inflammatory factors, including interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and chemokine (C-C motif) ligand 3 (CCL3), while daphnetin increased total antioxidant capacity (T-AOC) and superoxide dismutase (SOD) levels in the serum. Interestingly, daphnetin markedly decreased the expression of glial fibrillary acidic protein (GFAP) and the upstream regulatory molecule- phosphorylated signal transducer and activator of transcription 3 (p-STAT3) in APP/PS1 mice, and mainly inhibited the phosphorylation of STAT3 at Ser727 to decrease GFAP expression evidenced in a LPS-activated glial cell model. These results suggest that daphnetin ameliorates cognitive deficits and that Aβ deposition in APP/PS1 mice is mainly correlated with astrocyte activation and APP processing.
Collapse
Affiliation(s)
- Peipei Gao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Zhen Wang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Mengyao Lei
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jiaxing Che
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Shuangxi Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Tiantian Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yachong Hu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Le Shi
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li Cui
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Mami Noda
- Laboratory of Pathophysiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Yunhua Peng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jiangang Long
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
34
|
Dickerson M, Guilhaume-Corrêa F, Strickler J, VandeVord PJ. Age-relevant in vitro models may lead to improved translational research for traumatic brain injury. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022. [DOI: 10.1016/j.cobme.2022.100391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
35
|
Abzianidze V, Moiseeva N, Suponina D, Zakharenkova S, Rogovskaya N, Laletina L, Holder AA, Krivorotov D, Bogachenkov A, Garabadzhiu A, Ukolov A, Kosorukov V. Natural Phaeosphaeride A Derivatives Overcome Drug Resistance of Tumor Cells and Modulate Signaling Pathways. Pharmaceuticals (Basel) 2022; 15:ph15040395. [PMID: 35455394 PMCID: PMC9030166 DOI: 10.3390/ph15040395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/18/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
In the present study, natural phaeosphaeride A (PPA) derivatives are synthesized. Anti-tumor studies are carried out on the PC3, K562, HCT-116, THP-1, MCF-7, A549, NCI-H929, Jurkat, and RPMI8226 tumor cell lines, and on the human embryonic kidney (HEK293) cell line. All the compounds synthesized turned out to have better efficacy than PPA towards the tumor cell lines listed. Among them, three compounds exhibited an ability to overcome the drug resistance of tumor cells associated with the overexpression of the P-glycoprotein by modulating the work of this transporter. Luminex xMAP technology was used to assess the effect of five synthesized compounds on the activation of intracellular kinase cascades in A431 cells. MILLIPLEX MAP Multi-Pathway Magnetic Bead 9-Plex was used, which allowed for the simultaneous detection of the following nine phosphorylated protein markers of the main intracellular signaling pathways: a universal transcription factor that controls the expression of immune-response genes, apoptosis and cell cycle NFκB (pS536); cAMP-dependent transcription factor (CREB (pS133); mitogen-activated kinase p38 (pT180/pY182); stress-activated protein kinase JNK (pT183/pY185); ribosomal SK; transcription factors STAT3 (pS727) and STAT5A/B (pY694/699); protein kinase B (Akt) (pS473); and kinase regulated by extracellular signals ERK1/2 (pT185/pY187). The effect of various concentrations of PPA derivatives on the cell culture was studied using xCelligence RTCA equipment. The compounds were found to modulate JNK, ERK1/2, and p38 signaling pathways. The set of activated kinase cascades suggests that oxidative stress is the main probable mechanism of the toxic action of PPA derivatives.
Collapse
Affiliation(s)
- Victoria Abzianidze
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
- Correspondence: (V.A.); (A.H.); Tel.: +7-981-249-0902 (V.A.); +1-757-683-7102 (A.H.)
| | - Natalia Moiseeva
- Laboratory of Tumor Cell Genetics, Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, 115478 Moscow, Russia; (N.M.); (L.L.)
| | - Diana Suponina
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Sofya Zakharenkova
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Nadezhda Rogovskaya
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Lidia Laletina
- Laboratory of Tumor Cell Genetics, Institute of Carcinogenesis, N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, 115478 Moscow, Russia; (N.M.); (L.L.)
| | - Alvin A. Holder
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Avenue, Norfolk, VA 23529, USA
- Correspondence: (V.A.); (A.H.); Tel.: +7-981-249-0902 (V.A.); +1-757-683-7102 (A.H.)
| | - Denis Krivorotov
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Alexander Bogachenkov
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Alexander Garabadzhiu
- Saint Petersburg State Technological Institute (Technical University), 190013 Saint Petersburg, Russia;
| | - Anton Ukolov
- Research Institute of Hygiene, Occupational Pathology and Human Ecology, Federal Medical Biological Agency, p/o Kuz’molovsky, 188663 Saint Petersburg, Russia; (D.S.); (S.Z.); (N.R.); (D.K.); (A.B.); (A.U.)
| | - Vyacheslav Kosorukov
- Laboratory of Transgenic Drugs, N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, 115478 Moscow, Russia;
| |
Collapse
|
36
|
Dias FRP, de Souza Almeida RR, Sovrani V, Thomaz NK, Gonçalves CA, Quincozes-Santos A, Bobermin LD. Glioprotective Effects of Resveratrol Against BMAA-Induced Astroglial Dysfunctions. Neurotox Res 2022; 40:530-541. [PMID: 35320508 DOI: 10.1007/s12640-022-00492-9] [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: 02/08/2022] [Revised: 03/13/2022] [Accepted: 03/17/2022] [Indexed: 11/28/2022]
Abstract
Astroglial cells play important roles in maintaining central nervous system (CNS) homeostasis. The neurotoxin β-N-methylamino-L-alanine (BMAA) has usually been associated with neurodegeneration due to its toxic effects on neurons. However, little is known about the effects of BMAA on astroglial cells. Resveratrol, a natural polyphenol, represents a potential protective strategy against brain injuries. In the present study, we sought to investigate BMAA-induced astroglial dysfunctions and the glioprotective roles of resveratrol. BMAA did not impair astroglial cellular viability, but increased glutamate uptake, glutamate metabolism into glutamine, and reactive oxygen species production, while decreased glutathione (GSH) and superoxide dismutase (SOD)-based antioxidant defenses and triggers an inflammatory response. In contrast, resveratrol was able to prevent most of these BMAA-induced functional changes in astroglial cells. Moreover, both BMAA and resveratrol modulated the gene expression of molecular pathways associated with glutamate metabolism, redox homeostasis, and inflammatory response, which characterize their roles on astroglial functions. In this regard, BMAA downregulated adenosine receptors, peroxisome proliferator-activated receptor-gamma coactivator 1-alpha (PGC-1α), phosphoinositide-3-kinase (PI3K), and Akt, while resveratrol prevented these effects and upregulated nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1). Our study, for the first time, demonstrates that BMAA directly impacts key astroglial functions, contributing to elucidating the cellular and molecular mechanisms of this toxin in the CNS. In addition, we reinforce the glioprotective effects of resveratrol against BMAA-induced astroglial dysfunctions.
Collapse
Affiliation(s)
- Filipe Renato Pereira Dias
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil
| | - Rômulo Rodrigo de Souza Almeida
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil
| | - Vanessa Sovrani
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil
| | - Natalie K Thomaz
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil
| | - Carlos-Alberto Gonçalves
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil.,Programa de Pós-Graduação Em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - André Quincozes-Santos
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil.,Programa de Pós-Graduação Em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Larissa Daniele Bobermin
- Programa de Pós-Graduação Em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rua Ramiro Barcelos, 2600 - Anexo, 90035-003, RS, Brazil. .,Programa de Pós-Graduação Em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| |
Collapse
|
37
|
Yang F, Sun Z, Wang D, Du T. MiR-106b-5p regulates esophageal squamous cell carcinoma progression by binding to HPGD. BMC Cancer 2022; 22:308. [PMID: 35317779 PMCID: PMC8941792 DOI: 10.1186/s12885-022-09404-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/02/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Several studies have documented the key role of microRNAs (miRNAs) in esophageal squamous cell carcinoma (ESCC). Although the expression of the 15-hydroxyprostaglandin dehydrogenase (HPGD) gene and miR-106b-5p are reportedly linked to cancer progression, their underlying mechanisms in ESCC remain unclear. METHODS mRNA and miRNA expression in ESCC tissues and cells were analyzed using RT-qPCR. Luciferase and RNA pull-down assays were used to identify the interaction between miR-106b-5p and HPGD. Xenograft and pulmonary metastasis models were used to assess tumor growth and metastasis. CCK-8, BrdU, colony formation, adhesion, cell wound healing, Transwell, and caspase-3/7 activity assays, and flow cytometry and western blot analyses were used to examine the function of miR-106-5p and HPGD in ESCC cell lines. RESULTS The findings revealed that miR-106b-5p expression was upregulated in ESCC tissues and cell lines. miR-106b-5p augmented cellular proliferation, colony formation, adhesion, migration, invasion, and proportion of cells in the S-phase, but reduced apoptosis and the proportion of cells in G1-phase. Silencing of miR-106-5p inhibited tumor growth in vivo and pulmonary metastasis. Although HPGD overexpression suppressed proliferation, colony formation, adhesion, migration, and invasion of ESCC cells, it promoted apoptosis and caused cell cycle arrest of the ESCC cells. The results also indicated a direct interaction of HPGD with miR-106b-5p in ESCC cells. Furthermore, miR-106b-5p inhibited HPGD expression, thereby suppressing ESCC tumorigenesis. CONCLUSION Our data suggest that miR-106b-5p enhances proliferation, colony formation, adhesion, migration, and invasion, and induces the cycle progression, but represses apoptosis of ESCC cells by targeting HPGD. This suggests that the miR-106b-5p/HPGD axis may serve as a promising target for the diagnosis and treatment of ESCC.
Collapse
Affiliation(s)
- Fan Yang
- Department of Thoracic and Cardiovascular Surgery, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, No. 114, Tianjin Street, Huangshi, 435000, Hubei, P.R. China
| | - Zhanwen Sun
- Department of Thoracic and Cardiovascular Surgery, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, No. 114, Tianjin Street, Huangshi, 435000, Hubei, P.R. China
| | - Dengyun Wang
- Department of Thoracic and Cardiovascular Surgery, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, No. 114, Tianjin Street, Huangshi, 435000, Hubei, P.R. China
| | - Tian Du
- Department of Thoracic and Cardiovascular Surgery, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, No. 114, Tianjin Street, Huangshi, 435000, Hubei, P.R. China.
| |
Collapse
|
38
|
Debom GN, Rubenich DS, Braganhol E. Adenosinergic Signaling as a Key Modulator of the Glioma Microenvironment and Reactive Astrocytes. Front Neurosci 2022; 15:648476. [PMID: 35069091 PMCID: PMC8766410 DOI: 10.3389/fnins.2021.648476] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 12/03/2021] [Indexed: 12/13/2022] Open
Abstract
Astrocytes are numerous glial cells of the central nervous system (CNS) and play important roles in brain homeostasis. These cells can directly communicate with neurons by releasing gliotransmitters, such as adenosine triphosphate (ATP) and glutamate, into the multipartite synapse. Moreover, astrocytes respond to tissue injury in the CNS environment. Recently, astrocytic heterogeneity and plasticity have been discussed by several authors, with studies proposing a spectrum of astrocytic activation characterized by A1/neurotoxic and A2/neuroprotective polarization extremes. The fundamental roles of astrocytes in communicating with other cells and sustaining homeostasis are regulated by purinergic signaling. In the CNS environment, the gliotransmitter ATP acts cooperatively with other glial signaling molecules, such as cytokines, which may impact CNS functions by facilitating/inhibiting neurotransmitter release. Adenosine (ADO), the main product of extracellular ATP metabolism, is an important homeostatic modulator and acts as a neuromodulator in synaptic transmission via P1 receptor sensitization. Furthermore, purinergic signaling is a key factor in the tumor microenvironment (TME), as damaged cells release ATP, leading to ADO accumulation in the TME through the ectonucleotidase cascade. Indeed, the enzyme CD73, which converts AMP to ADO, is overexpressed in glioblastoma cells; this upregulation is associated with tumor aggressiveness. Because of the crucial activity of CD73 in these cells, extracellular ADO accumulation in the TME contributes to sustaining glioblastoma immune escape while promoting A2-like activation. The present review describes the importance of ADO in modulating astrocyte polarization and simultaneously promoting tumor growth. We also discuss whether targeting of CD73 to block ADO production can be used as an alternative cancer therapy.
Collapse
Affiliation(s)
- Gabriela N Debom
- Programa de Pós-graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Dominique S Rubenich
- Programa de Pós-graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Elizandra Braganhol
- Programa de Pós-graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil.,Instituto de Cardiologia do Rio Grande do Sul, Instituto de Cardiologia - Fundação Universitária de Cardiologia, Porto Alegre, Brazil
| |
Collapse
|
39
|
Song L, Oseid DE, Wells EA, Coaston T, Robinson AS. Heparan Sulfate Proteoglycans (HSPGs) Serve as the Mediator Between Monomeric Tau and Its Subsequent Intracellular ERK1/2 Pathway Activation. J Mol Neurosci 2022; 72:772-791. [PMID: 35040015 PMCID: PMC8763444 DOI: 10.1007/s12031-021-01943-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 11/06/2021] [Indexed: 12/15/2022]
Abstract
The conversion of soluble tau protein to insoluble, hyperphosphorylated neurofibrillary tangles (NFTs) is a major hallmark leading to neuronal death observed in neurodegenerative tauopathies. Unlike NFTs, the involvement of monomeric tau in the progression of tau pathology has been less investigated. Using live-cell confocal microscopy and flow cytometry, we demonstrate that soluble 0N4R monomers were rapidly endocytosed by SH-SY5Y and C6 glioma cells via actin-dependent macropinocytosis. Further, cellular endocytosis of monomeric tau has been demonstrated to be HSPG-dependent, as shown in C6 glial cells with genetic knockouts of xylosyltransferase-1—a key enzyme in HSPG synthesis—with a reduced level of tau uptake. Tau internalization subsequently triggers ERK1/2 activation and therefore, the upregulation of IL-6 and IL-1β. The role of ERK1/2 in regulating the levels of pro-inflammatory gene transcripts was confirmed by inhibiting the MEK-ERK1/2 signaling pathway, which led to the attenuated IL-6 and IL-1β expressions but not that of TNF-α. Moreover, as a key regulator of tau internalization, LRP1 (low-density lipoprotein receptor-related protein 1) levels were downregulated in response to monomeric tau added to C6 cells, while it was upregulated in HSPG-deficient cells, suggesting that the involvement of LRP1 in tau uptake depends on the presence of HSPGs on the cell surface. The subsequent LRP1 knockdown experiment we performed shows that LRP1 deficiency leads to an attenuated propensity for tau uptake and further elevated IL-6 gene expression. Collectively, our data suggest that tau has multiple extracellular binding partners that mediate its internalization through distinct mechanisms. Additionally, this study demonstrates the important role of both HSPGs and LRP1 in regulating cellular immune responses to tau protein monomers, providing a novel target for alleviating the neuroinflammatory environment before the formation of neurofibrillary tangles.
Collapse
Affiliation(s)
- Liqing Song
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Daniel E Oseid
- Tulane Brain Institute, Tulane University, New Orleans, LA, 70118, USA
| | - Evan A Wells
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Troy Coaston
- Tulane Brain Institute, Tulane University, New Orleans, LA, 70118, USA
| | - Anne S Robinson
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
- Tulane Brain Institute, Tulane University, New Orleans, LA, 70118, USA.
| |
Collapse
|
40
|
Mokrane N, Snabi Y, Cens T, Guiramand J, Charnet P, Bertaud A, Menard C, Rousset M, de Jesus Ferreira MC, Thibaud JB, Cohen-Solal C, Vignes M, Roussel J. Manipulations of Glutathione Metabolism Modulate IP 3-Mediated Store-Operated Ca 2+ Entry on Astroglioma Cell Line. Front Aging Neurosci 2022; 13:785727. [PMID: 34975458 PMCID: PMC8719003 DOI: 10.3389/fnagi.2021.785727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/01/2021] [Indexed: 02/03/2023] Open
Abstract
The regulation of the redox status involves the activation of intracellular pathways as Nrf2 which provides hormetic adaptations against oxidative stress in response to environmental stimuli. In the brain, Nrf2 activation upregulates the formation of glutathione (GSH) which is the primary antioxidant system mainly produced by astrocytes. Astrocytes have also been shown to be themselves the target of oxidative stress. However, how changes in the redox status itself could impact the intracellular Ca2+ homeostasis in astrocytes is not known, although this could be of great help to understand the neuronal damage caused by oxidative stress. Indeed, intracellular Ca2+ changes in astrocytes are crucial for their regulatory actions on neuronal networks. We have manipulated GSH concentration in astroglioma cells with selective inhibitors and activators of the enzymes involved in the GSH cycle and analyzed how this could modify Ca2+ homeostasis. IP3-mediated store-operated calcium entry (SOCE), obtained after store depletion elicited by Gq-linked purinergic P2Y receptors activation, are either sensitized or desensitized, following GSH depletion or increase, respectively. The desensitization may involve decreased expression of the proteins STIM2, Orai1, and Orai3 which support SOCE mechanism. The sensitization process revealed by exposing cells to oxidative stress likely involves the increase in the activity of Calcium Release-Activated Channels (CRAC) and/or in their membrane expression. In addition, we observe that GSH depletion drastically impacts P2Y receptor-mediated changes in membrane currents, as evidenced by large increases in Ca2+-dependent K+ currents. We conclude that changes in the redox status of astrocytes could dramatically modify Ca2+ responses to Gq-linked GPCR activation in both directions, by impacting store-dependent Ca2+-channels, and thus modify cellular excitability under purinergic stimulation.
Collapse
Affiliation(s)
- Nawfel Mokrane
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Yassin Snabi
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Thierry Cens
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France
| | - Janique Guiramand
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France
| | - Pierre Charnet
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France
| | - Anaïs Bertaud
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Claudine Menard
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Matthieu Rousset
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France
| | - Marie-Céleste de Jesus Ferreira
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | | | - Catherine Cohen-Solal
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Michel Vignes
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| | - Julien Roussel
- UMR 5247 Institut des Biomolécules Max Mousseron (IBMM), Montpellier, France.,Department of Biological Sciences, Université de Montpellier, Montpellier, France
| |
Collapse
|
41
|
Human herpesvirus 6A U4 inhibits proteasomal degradation of amyloid precursor protein. J Virol 2021; 96:e0168821. [PMID: 34878807 DOI: 10.1128/jvi.01688-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Human herpesvirus 6 (HHV-6) belongs to the betaherpesvirus subfamily and is divided into two distinct species, HHV-6A and HHV-6B. HHV-6 can infect nerve cells and is associated with a variety of nervous system diseases. Recently, the association of HHV-6A infection with Alzheimer's disease (AD) has been suggested. The main pathological phenomena of AD are the accumulation of β-amyloid (Aβ), neurofibrillary tangles, and neuroinflammation, however, the specific molecular mechanism of pathogenesis of AD is not fully clear. In this study, we focused on the effect of HHV-6A U4 gene function on Aβ expression. Co-expression of HHV-6A U4 with APP resulted in inhibition of ubiquitin-mediated proteasomal degradation of amyloid precursor protein (APP). Consequently, accumulation of β-amyloid peptide (Aβ), insoluble neurofibrillary tangles, and loss of neural cells may occur. Immunoprecipitation coupled to mass spectrometry (IP-MS) showed that HHV-6A U4 protein interacts with E3 ubiquitin ligase composed of DDB1 and Cullin 4B which is also responsible for APP degradation. We hypothesize that HHV-6A U4 protein competes with APP for binding to E3 ubiquitin ligase, resulting in inhibition of APP ubiquitin modification and clearance. Finally, this is leading to the increase of APP expression and Aβ deposition, which is the hallmark of AD. These findings provide novel evidence for the etiological hypothesis of AD that can contribute to the further analysis of HHV-6A role in AD. IMPORTANCE The association of HHV-6A infection with Alzheimer's disease has attracted increasing attention, although its role and molecular mechanism remain to be established. Our results here indicate that HHV-6A U4 inhibits APP (amyloid precursor protein) degradation. U4 protein interacts with CRLs (Cullin-RING E3 ubiquitin-protein ligases) which is also responsible for APP degradation. We propose a model that U4 competitively binds to CRLs with APP, resulting in APP accumulation and Aβ generation. Our findings provide new insights into the etiological hypothesis of HHV-6A in AD that can help further analyses.
Collapse
|
42
|
Zhao H, Du P, Peng R, Peng G, Yuan J, Liu D, Liu Y, Mo X, Liao Y. Long Noncoding RNA OR7E156P/miR-143/HIF1A Axis Modulates the Malignant Behaviors of Glioma Cell and Tumor Growth in Mice. Front Oncol 2021; 11:690213. [PMID: 34422645 PMCID: PMC8377393 DOI: 10.3389/fonc.2021.690213] [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: 04/02/2021] [Accepted: 07/19/2021] [Indexed: 12/28/2022] Open
Abstract
Gliomas are characterized by high incidence, recurrence and mortality all of which are significant challenges to efficacious clinical treatment. The hypoxic microenvironment in the inner core and intermediate layer of the tumor mass of gliomas is a critical contributor to glioma pathogenesis. In this study, we identified an upregulated lncRNA, OR7E156P, in glioma was identified. The silencing of OR7E156P inhibited cell invasion and DNA synthesis in vitro and tumor growth in vivo. OR7E156P was intricately linked to the HIF1A pathway. Hypoxia could induce OR7E156P expression, whereas OR7E156P silencing decreased HIF1A protein levels under hypoxic conditions. Hypoxia promoted glioma cell invasion and DNA synthesis, and HUVEC tube formation, whereas OR7E156P silencing partially reversed the cellular effects of hypoxia. HIF1A overexpression promoted, whereas OR7E156P silencing inhibited tumor growth; the inhibitory effects of OR7E156P silencing on tumor growth were partially reversed by HIF1A overexpression. miR-143 directly targeted OR7E156P and HIF1A, respectively. miR-143 inhibition increased HIF1A protein levels, promoted glioma cell invasion and DNA synthesis. Moreover, they enhanced HUVEC tube formation, whereas OR7E156P silencing partially reversed the cellular effects of miR-143 inhibition. HIF1A targeted the promoter region of miR-143 and inhibited miR-143 expression. Altogether a regulatory axis consisting of OR7E156P, miR-143, and HIF1A, was identified which is deregulated in glioma, and the process of the OR7E156P/miR-143/HIF1A axis modulating glioma cell invasion through ZEB1 and HUVEC tube formation through VEGF was demonstrated.
Collapse
Affiliation(s)
- Haiting Zhao
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China.,Department of Neurology, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Peng Du
- Department of Neurosurgery, The Second Affiliated Hospital, Xinjiang Medical University, Urumqi, China
| | - Renjun Peng
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Gang Peng
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Jian Yuan
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Dingyang Liu
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Yi Liu
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Xin Mo
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| | - Yiwei Liao
- Department of Neurosurgery, Xiangya Hospital, The Central South University (CSU), Changsha, China
| |
Collapse
|
43
|
Sun C, An Q, Li R, Chen S, Gu X, An S, Wang Z. Calcitonin gene-related peptide induces the histone H3 lysine 9 acetylation in astrocytes associated with neuroinflammation in rats with neuropathic pain. CNS Neurosci Ther 2021; 27:1409-1424. [PMID: 34397151 PMCID: PMC8504526 DOI: 10.1111/cns.13720] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 02/06/2023] Open
Abstract
Aims Calcitonin gene‐related peptide (CGRP) as a regulator of astrocyte activation may facilitate spinal nociceptive processing. Histone H3 lysine 9 acetylation (H3K9ac) is considered an important regulator of cytokine and chemokine gene expression after peripheral nerve injury. In this study, we explored the relationship between CGRP and H3K9ac in the activation of astrocytes, and elucidated the underlying mechanisms in the pathogenesis of chronic neuropathic pain. Methods Astroglial cells (C6) were treated with CGRP and differentially enrichments of H3K9ac on gene promoters were examined using ChIP‐seq. A chronic constriction injury (CCI) rat model was used to evaluate the role of CGRP on astrocyte activation and H3K9ac signaling in CCI‐induced neuropathic pain. Specific inhibitors were employed to delineate the involved signaling. Results Intrathecal injection of CGRP and CCI increased the number of astrocytes displaying H3K9ac in the spinal dorsal horn of rats. Treatment of CGRP was able to up‐regulate H3K9ac and glial fibrillary acidic protein (GFAP) expression in astroglial cells. ChIP‐seq data indicated that CGRP significantly altered H3K9ac enrichments on gene promoters in astroglial cells following CGRP treatment, including 151 gaining H3K9ac and 111 losing this mark, which mostly enriched in proliferation, autophagy, and macrophage chemotaxis processes. qRT‐PCR verified expressions of representative candidate genes (ATG12, ATG4C, CX3CR1, MMP28, MTMR14, HMOX1, RET) and RTCA verified astrocyte proliferation. Additionally, CGRP treatment increased the expression of H3K9ac, CX3CR1, and IL‐1β in the spinal dorsal horn. CGRP antagonist and HAT inhibitor attenuated mechanical and thermal hyperalgesia in CCI rats. Such analgesic effects were concurrently associated with the reduced levels of H3K9ac, CX3CR1, and IL‐1β in the spinal dorsal horn of CCI rats. Conclusion Our findings highly indicate that CGRP is associated with the development of neuropathic pain through astrocytes‐mediated neuroinflammatory responses via H3K9ac in spinal dorsa horn following nerve injury. This study found that CGRP act on their astrocytic receptors and lead to H3K9 acetylation (H3K9ac), which are mainly associated with proliferation‐, autophagy‐, and inflammation‐related gene expression. The number of astrocytes with H3K9ac expression is increased after nerve injury. Inhibition of CGRP attenuates the development of neuropathic pain, which was accompanied by the suppression of H3K9ac, CX3CR1, and IL‐1β expression in CCI rats.
Collapse
Affiliation(s)
- Chenyan Sun
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Qi An
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Ruidi Li
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Shuhui Chen
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Xinpei Gu
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Shuhong An
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Zhaojin Wang
- Department of Human Anatomy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| |
Collapse
|
44
|
Tournier B, Ceyzériat K, Bouteldja FN, Millet P. Amyloid and Tau Induce Cell Death Independently of TSPO Polymerization and Density Changes. ACS OMEGA 2021; 6:18719-18727. [PMID: 34337211 PMCID: PMC8319921 DOI: 10.1021/acsomega.1c01678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Apoptosis-dependent cell death of astrocytes has been described in Alzheimer's disease and is linked to the presence of two markers of the pathology: the β-amyloid peptide (Aβ) and the hyperphosphorylated Tau protein. Astrocytes also show reactive states characterized by the overexpression of the 18 kDa translocator protein (TSPO). However, TSPO is also known, in other areas of research, to participate in cell proliferation and death. Regulation of its function by autopolymerization has been described, but its involvement in apoptosis remains unknown. The aim was to determine the effects of Aβ, Tau, and TSPO antagonists on proliferation/cell death and TSPO polymerization in the C6 astrocytic cell line. The dose-effect on cell death in response to Aβ and Tau was observed but without alterations of TSPO density and polymerization. In contrast, nanomolar doses of antagonists stimulated cell proliferation, although micromolar doses induced cell death with a reduction in TSPO density and an increase in the ratio between the 36 and the 72 kDa TSPO polymers. Therefore, an alteration in the density and polymerization of TSPO appears to be related to cell death induced by TSPO antagonisms. In contrast, Aβ- and Tau-induced death seems to be independent of TSPO alterations. In conclusion, even if its role in cell death and proliferation is demonstrated, TSPO seems to, in the context of Alzheimer's disease, rather represent a marker of the activity of astrocytes than of cell death.
Collapse
Affiliation(s)
- Benjamin
B. Tournier
- Department
of Psychiatry, University Hospitals of Geneva, 1205 Genève, Switzerland
- Department
of Psychiatry, University of Geneva, 1211 Genève, Switzerland
| | - Kelly Ceyzériat
- Department
of Psychiatry, University Hospitals of Geneva, 1205 Genève, Switzerland
- Department
of Psychiatry, University of Geneva, 1211 Genève, Switzerland
- Division
of Nuclear Medicine and Molecular Imaging, Diagnostic Department, University Hospitals of Geneva, 1205 Genève, Switzerland
- Division
of Radiation Oncology, Department of Oncology, University Hospitals of Geneva, 1205 Genève, Switzerland
| | - Farha N. Bouteldja
- Department
of Psychiatry, University Hospitals of Geneva, 1205 Genève, Switzerland
- Department
of Psychiatry, University of Geneva, 1211 Genève, Switzerland
| | - Philippe Millet
- Department
of Psychiatry, University Hospitals of Geneva, 1205 Genève, Switzerland
- Department
of Psychiatry, University of Geneva, 1211 Genève, Switzerland
| |
Collapse
|
45
|
Astrocyte specific proteins content in the different parts of the rat and mongolian gerbil brain during ontogenesis. UKRAINIAN BIOCHEMICAL JOURNAL 2021. [DOI: 10.15407/ubj93.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
46
|
da Costa CC, Martins LAM, Koth AP, Ramos JMO, Guma FTCR, de Oliveira CM, Pedra NS, Fischer G, Helena ES, Gioda CR, Sanches PRS, Junior ASV, Soares MSP, Spanevello RM, Gamaro GD, de Souza ICC. Static Magnetic Stimulation Induces Changes in the Oxidative Status and Cell Viability Parameters in a Primary Culture Model of Astrocytes. Cell Biochem Biophys 2021; 79:873-885. [PMID: 34176101 DOI: 10.1007/s12013-021-01015-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2021] [Indexed: 11/24/2022]
Abstract
Astrocytes play an important role in the central nervous system function and may contribute to brain plasticity response during static magnetic fields (SMF) brain therapy. However, most studies evaluate SMF stimulation in brain plasticity while few studies evaluate the consequences of SMF at the cellular level. Thus, we here evaluate the effects of SMF at 305 mT (medium-intensity) in a primary culture of healthy/normal cortical astrocytes obtained from neonatal (1 to 2-day-old) Wistar rats. After reaching confluence, cells were daily subjected to SMF stimulation for 5 min, 15 min, 30 min, and 40 min during 7 consecutive days. Oxidative stress parameters, cell cycle, cell viability, and mitochondrial function were analyzed. The antioxidant capacity was reduced in groups stimulated for 5 and 40 min. Although no difference was observed in the enzymatic activity of superoxide dismutase and catalase or the total thiol content, lipid peroxidation was increased in all stimulated groups. The cell cycle was changed after 40 min of SMF stimulation while 15, 30, and 40 min led cells to death by necrosis. Mitochondrial function was reduced after SMF stimulation, although imaging analysis did not reveal substantial changes in the mitochondrial network. Results mainly revealed that SMF compromised healthy astrocytes' oxidative status and viability. This finding reveals how important is to understand the SMF stimulation at the cellular level since this therapeutic approach has been largely used against neurological and psychiatric diseases.
Collapse
Affiliation(s)
- Caroline Crespo da Costa
- NeuroCell Laboratory, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Léo Anderson Meira Martins
- Department of Physiology, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Bairro Centro Histórico, Porto Alegre, Rio Grande do Sul, 90050-170, Brasil
| | - André Peres Koth
- NeuroCell Laboratory, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Jéssica Marques Obelar Ramos
- NeuroCell Laboratory, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Fátima Theresinha Costa Rodrigues Guma
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Bairro Santa Cecília, Porto Alegre, Rio Grande do Sul, 90035-000, Brasil
| | - Cleverson Moraes de Oliveira
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Bairro Santa Cecília, Porto Alegre, Rio Grande do Sul, 90035-000, Brasil
| | - Nathália Stark Pedra
- Laboratory of Neurochemistry, Inflammation and Cancer, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Geferson Fischer
- Laboratory of Virology and Immunology, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Eduarda Santa Helena
- Department of Physiological Sciences, Universidade Federal de Rio Grande Avenida Itália, Km 8, Bairro Carreiros, Rio Grande, Rio Grande do Sul, 96203-900, Brasil
| | - Carolina Rosa Gioda
- Department of Physiological Sciences, Universidade Federal de Rio Grande Avenida Itália, Km 8, Bairro Carreiros, Rio Grande, Rio Grande do Sul, 96203-900, Brasil
| | - Paulo Roberto Stefani Sanches
- Laboratory of the Research and Development Service in Biomedical Engineering- Hospital de Clínicas de Porto Alegre Rua Ramiro Barcelos, 2350- Bairro Santa Cecília, Porto Alegre-RS, 90035-903, Brasil
| | - Antonio Sergio Varela Junior
- Institute of Biological Science, Universidade Federal do Rio Grande Avenida Itália, Km 8, Bairro Carreiros, Rio Grande, Rio Grande do Sul, 96203-900, Brasil
| | - Mayara Sandrielly Pereira Soares
- Laboratory of Neurochemistry, Inflammation and Cancer, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Rosélia Maria Spanevello
- Laboratory of Neurochemistry, Inflammation and Cancer, Post-Graduate Program in Biochemistry and Bioprospection, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Giovana Duzzo Gamaro
- NeuroCell Laboratory, Universidade Federal de Pelotas Campus Universitário, S/N, Capão do Leão-RS, 96160-000, Brasil
| | - Izabel Cristina Custódio de Souza
- Coordinator of NeuroCell Laboratory, Laboratory of Histology, Department of Morphology, Post-Graduate Program in Biochemistry and Bioprospection, Universidade Federal de Pelotas Avenida Duque de Caxias, 250, 96030-000, Pelotas, Rio Grande do Sul, Brasil.
| |
Collapse
|
47
|
Vizuete AFK, de Lima Cordeiro J, Neves JD, Seady M, Grun LK, Barbé-Tuana FM, Leite MC, Netto CA, Gonçalves CA. Arundic acid (ONO-2526) inhibits stimulated-S100B secretion in inflammatory conditions. Neurosci Lett 2021; 751:135776. [PMID: 33727126 DOI: 10.1016/j.neulet.2021.135776] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 11/18/2022]
Abstract
Astrocytes respond to injury by modifying the expression profile of several proteins, including the S100 calcium-binding protein B (S100B), assumed to be a marker as well as a mediator of brain injury. AA is an inhibitor of S100B synthesis and plays a protective role in different models of brain injury, as decreases in S100B expression cause decreases in extracellular S100B. However, S100B mRNA expression, S100B protein content and S100B secretion do not always occur in association; as such, we herein investigated the effect of AA on S100B secretion, using different approaches with three stimulating conditions for S100B secretion, namely, low potassium medium, TNF-α (in hippocampal slices) and LPS exposure (in astrocyte cultures). Our data indicate that AA directly affects S100B secretion, indicating that the extracellular levels of this astroglial protein may be mediating the action of this compound. More importantly, AA had no effect on basal S100B secretion, but inhibited stimulated S100B secretion (stimulated either by the proinflammatory molecules, LPS or TNF-α, or by low potassium medium). Data from hippocampal slices that were directly exposed to AA, or from animals that received the acid by intracerebroventricular infusion, contribute to understanding its neuroprotective effect.
Collapse
Affiliation(s)
| | - Juliana de Lima Cordeiro
- Graduate Program in Neuroscience, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | - Juliana Dalibor Neves
- Graduate Program in Neuroscience, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | - Marina Seady
- Graduate Program in Biochemistry, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | - Lucas Kich Grun
- Graduate Program in Neuroscience, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | | | - Marina Concli Leite
- Graduate Program in Biochemistry, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | - Carlos Alexandre Netto
- Graduate Program in Biochemistry, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil; Graduate Program in Neuroscience, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| | - Carlos-Alberto Gonçalves
- Graduate Program in Biochemistry, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil; Graduate Program in Neuroscience, Institute of Basic Health Sciences, UFRGS, Porto Alegre, Brazil
| |
Collapse
|
48
|
Regan JT, Mirczuk SM, Scudder CJ, Stacey E, Khan S, Worwood M, Powles T, Dennis-Beron JS, Ginley-Hidinger M, McGonnell IM, Volk HA, Strickland R, Tivers MS, Lawson C, Lipscomb VJ, Fowkes RC. Sensitivity of the Natriuretic Peptide/cGMP System to Hyperammonaemia in Rat C6 Glioma Cells and GPNT Brain Endothelial Cells. Cells 2021; 10:cells10020398. [PMID: 33672024 PMCID: PMC7919485 DOI: 10.3390/cells10020398] [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: 12/02/2020] [Revised: 02/05/2021] [Accepted: 02/11/2021] [Indexed: 12/16/2022] Open
Abstract
C-type natriuretic peptide (CNP) is the major natriuretic peptide of the central nervous system and acts via its selective guanylyl cyclase-B (GC-B) receptor to regulate cGMP production in neurons, astrocytes and endothelial cells. CNP is implicated in the regulation of neurogenesis, axonal bifurcation, as well as learning and memory. Several neurological disorders result in toxic concentrations of ammonia (hyperammonaemia), which can adversely affect astrocyte function. However, the relationship between CNP and hyperammonaemia is poorly understood. Here, we examine the molecular and pharmacological control of CNP in rat C6 glioma cells and rat GPNT brain endothelial cells, under conditions of hyperammonaemia. Concentration-dependent inhibition of C6 glioma cell proliferation by hyperammonaemia was unaffected by CNP co-treatment. Furthermore, hyperammonaemia pre-treatment (for 1 h and 24 h) caused a significant inhibition in subsequent CNP-stimulated cGMP accumulation in both C6 and GPNT cells, whereas nitric-oxide-dependent cGMP accumulation was not affected. CNP-stimulated cGMP efflux from C6 glioma cells was significantly reduced under conditions of hyperammonaemia, potentially via a mechanism involving changed in phosphodiesterase expression. Hyperammonaemia-stimulated ROS production was unaffected by CNP but enhanced by a nitric oxide donor in C6 cells. Extracellular vesicle production from C6 cells was enhanced by hyperammonaemia, and these vesicles caused impaired CNP-stimulated cGMP signalling in GPNT cells. Collectively, these data demonstrate functional interaction between CNP signalling and hyperammonaemia in C6 glioma and GPNT cells, but the exact mechanisms remain to be established.
Collapse
Affiliation(s)
- Jacob T. Regan
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Samantha M. Mirczuk
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (I.M.M.); (C.L.)
| | - Christopher J. Scudder
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (I.M.M.); (C.L.)
| | - Emily Stacey
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Sabah Khan
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Michael Worwood
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Torinn Powles
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - J. Sebastian Dennis-Beron
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Matthew Ginley-Hidinger
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
| | - Imelda M. McGonnell
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (I.M.M.); (C.L.)
| | - Holger A. Volk
- Stiftung Tierärztliche Hochschule Hannover, Klinik für Kleintiere, Bünteweg, 930559 Hannover, Germany;
| | - Rhiannon Strickland
- Clinical Sciences & Services, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (R.S.); (V.J.L.)
| | - Michael S. Tivers
- Paragon Veterinary Referrals, Paragon Business Village Paragon Way, Red Hall Cres, Wakefield WF1 2DF, UK;
| | - Charlotte Lawson
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (I.M.M.); (C.L.)
| | - Victoria J. Lipscomb
- Clinical Sciences & Services, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (R.S.); (V.J.L.)
| | - Robert C. Fowkes
- Endocrine Signalling Group, Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (J.T.R.); (S.M.M.); (C.J.S.); (E.S.); (S.K.); (M.W.); (T.P.); (J.S.D.-B.); (M.G.-H.)
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; (I.M.M.); (C.L.)
- Correspondence: ; Tel.: +44-207-468-1215
| |
Collapse
|
49
|
dos Reis Teixeira A, Teixeira RR, Ribeiro IML, Pereira WL, Manhabosco TM, de Brito ACF, Oliveira LAM, Coelho Nogueira KDOP. Association of electroanalytical and spectrophotometric methods to evaluate the antioxidant activity of isobenzofuranone in primary cultures of hippocampal neurons. Toxicol In Vitro 2020; 68:104970. [DOI: 10.1016/j.tiv.2020.104970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/30/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022]
|
50
|
Park SH, Lee JY, Jhee KH, Yang SA. Amyloid-ß peptides inhibit the expression of AQP4 and glutamate transporter EAAC1 in insulin-treated C6 glioma cells. Toxicol Rep 2020; 7:1083-1089. [PMID: 32953460 PMCID: PMC7484518 DOI: 10.1016/j.toxrep.2020.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 08/09/2020] [Accepted: 08/27/2020] [Indexed: 01/30/2023] Open
Abstract
Astrocytic aquaporin 4 (AQP4) facilitates glutamate clearance via regulation of the glutamate transporter function, involved in the modulation of brain plasticity and cognitive function to prevent neurodegenerative disorders such as Alzheimer's disease (AD). In in vitro studies, the C6 rat glioma cell line is a widely applied aging model system to investigate changes in glial cells associated with aging or AD. However, the neurotoxicity mechanism whether AQP4 mediate glutamate uptake in Aβ-stimulated C6 cell remain uncertain. In this study, we examined the effects of Aβ on the expression of AQP4, Glu transporters, Glu uptake, and cell viability in insulin-treated C6 cells. Our results showed that the expression of AQP4 mRNA and protein was significantly enhanced by insulin in older cultures (passage 45), and the expression was inhibited by Aβ at 10 μM. In addition, the cell viability and glutamate uptake in Aβ-treated C6 cells were decreased in dose-dependent manners. GFAP showed similar changes in gene and protein expression patterns as AQP4, but no significant alterations were seen in GLAST expression. In C6 cells, the glutamate transport was found to be EAAC1, not GLT-1. EAAC1 expression was decreased by the treatment of Aβ. Taken together, our findings suggest that C6 cells may have astrocytic characteristics, and the astrocytic cytotoxicity induced by Aβ was mediated by reduction of glutamate uptake through AQP4/EAAC1 pathway in C6 cells. This indicates that C6 glioma cells could be used to study the roles of AQP4 on astrocyte function in AD.
Collapse
Affiliation(s)
- Se-Ho Park
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea.,Institute of Natural Science, Keimyung University, Daegu 42601, Republic of Korea
| | - Jae-Yeul Lee
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea.,Institute of Natural Science, Keimyung University, Daegu 42601, Republic of Korea
| | - Kwang-Hwan Jhee
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Seun-Ah Yang
- Department of Food Science and Technology, Keimyung University, Daegu 42601, Republic of Korea
| |
Collapse
|