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Atya HB, Sharaf NM, Abdelghany RM, El-Helaly SN, Taha H. Autophagy and exosomes; inter-connected maestros in Alzheimer's disease. Inflammopharmacology 2024; 32:2061-2073. [PMID: 38564092 PMCID: PMC11136856 DOI: 10.1007/s10787-024-01466-3] [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: 02/27/2024] [Accepted: 03/17/2024] [Indexed: 04/04/2024]
Abstract
Autophagy is a crucial process involved in the degradation and recycling of cytoplasmic components which are transported to the lysosomal compartment by autophagosomes. Exosomes are an important means of communication and signaling in both normal and diseased states, and they have a significant role in the transmission and propagation of proteins, especially proteins implicated in neurodegenerative disorders. Autophagy may affect exosomal processing, but whether autophagy controls the release of aggregated β-amyloid and tau proteins in exosomes of Alzheimer disease (AD) is unclear. Therefore, our study aimed to investigate how modulating autophagy affects the exosomal release of these proteins in animal models of AD. Isolated exosomes from brain tissues of 48 male albino mice were divided into four groups (Negative control, LPS, rapamycin (RAPA), and chloroquine (CQ). LC3 I and LC3 II as well as Aβ and Tau proteins levels were determined. All mice undergone Neuro-behavioral tests (Morris Water maze test, Y-maze test, and Novel Object Recognition). Both LPS and CQ groups showed reduced expression levels of LC3 II and LC3 II/LC3 I ratio. In contrast, RAPA group showed a significant increase in both LC3-II expression and LC3-II/LC3-I ratio. The levels of both Aβ & Tau in exosomes of CQ & LPS groups were higher. While RAPA group showed a significant diminished levels of tau & Aβ proteins. In conclusion, our findings suggest that autophagy alterations in AD can influence the release of Aβ and tau proteins through exosomes, which may impact the spread of misfolded proteins in AD. These results highlight a potential innovative therapeutic approach for combating AD.
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Affiliation(s)
- Hanaa B Atya
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, P.O. Box 11795, Cairo, Egypt.
| | - Nadia Mohamed Sharaf
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo-(GUC), Cairo, Egypt
| | - Ragwa Mansour Abdelghany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo-(GUC), Cairo, Egypt
| | - Sara Nageeb El-Helaly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Heba Taha
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, P.O. Box 11795, Cairo, Egypt
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Hu S, Zhao J, Fang S, Guo K, Qi W, Liu H. Neurotoxic effects of chloroquine and its main transformation product formed after chlorination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168043. [PMID: 37898196 DOI: 10.1016/j.scitotenv.2023.168043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/30/2023]
Abstract
Pharmaceutical transformation products (TPs) generated during wastewater treatment have become an environmental concern. However, there is limited understanding regarding the TPs produced from pharmaceuticals during wastewater treatment. In this study, chloroquine (CQ), which was extensively used for treating coronavirus disease-19 (COVID-19) infections during the pandemic, was selected for research. We identified and fractionated the main TP produced from CQ during chlorine disinfection and investigated the neurotoxic effects of CQ and its main TP on zebrafish (Danio rerio) embryos. Halogenated TP353 was observed as one of the main TPs produced from CQ during chlorine disinfection. Zebrafish embryos test revealed that TP353 caused higher neurotoxicity in zebrafish larvae, as compared to the CQ, and that was accompanied by significantly decreased expression levels of the genes related to central nervous system development (e.g., gfap, syn2a, and elavl3), inhibited activity of acetylcholinesterase (AChE), reduced GFP fluorescence intensity of motor neuron axons in transgenic larvae (hb9-GFP), and reduced total swimming distance and swimming velocity of larvae during light-dark transition stimulation. The results of this study can potentially be utilized as a theoretical reference for future evaluations of environmental risks associated with CQ and its related TPs. This work presents a methodology for assessing the environmental hazards linked to the discharge of pharmaceutical TPs after wastewater treatment.
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Affiliation(s)
- Shengchao Hu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jian Zhao
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Shangbiao Fang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Kehui Guo
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Weixiao Qi
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huijuan Liu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
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Yang W, Ma L, Hai DM, Liu N, Yang JM, Lan XB, Du J, Yang LS, Sun T, Yu JQ. Hippocampal Proteomic Analysis in Male Mice Following Aggressive Behavior Induced by Long-Term Administration of Perampanel. ACS OMEGA 2022; 7:19388-19400. [PMID: 35721950 PMCID: PMC9202264 DOI: 10.1021/acsomega.2c01008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/11/2022] [Indexed: 05/03/2023]
Abstract
Antiepileptic drugs have been shown to be associated with inducing or exacerbating adverse psychotropic reaction, including aggressive behavior. Perampanel, the first pharmacological compound approved by the FDA in 2012, is an effective antiepileptic drug for intractable epilepsy but induces severe aggression. So far, the underlying molecular mechanisms of aggression induced by perampanel remain incompletely understood. In the present study, a model of aggressive behavior based on the clinical use of perampanel was established and resident-intruder test and open field test were performed. Changes in hippocampal protein profiles were detected by tandem mass tag (TMT) proteomics. The behavioral results indicated that long-term use of perampanel increased the aggressive behavior of C57BL/6J mice. Proteomic analysis revealed that 93 proteins were significantly altered in the hippocampus of the perampanel-treated group (corrected p < 0.05), which were divided into multiple functional groups, mainly related to synaptic function, synaptogenesis, postsynaptic density protein, neurite outgrowth, AMPA-type glutamate receptor immobilization, and others. Bioinformatic analysis showed that differentially expressed proteins were involved in synaptic plasticity and the Ras signaling pathway. Furthermore, validation results by western blot demonstrated that glutamate receptor 1 (GluA1) and phosphorylation of mitogen-activated protein kinase (ERK1/2) were notably up-regulated, and synaptophysin (Syn) and postsynaptic density 95 (PSD95) were down-regulated in perampanel-treated mice. Therefore, our results provide valuable insight into the molecular mechanisms of aggressive behavior induced by perampanel, as well as potential options for safety treatment of perampanel in the future.
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Affiliation(s)
- Wu Yang
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
- Department
of Emergency, General Hospital of Ningxia
Medical University, Yinchuan 750004, Ningxia, PR China
| | - Lin Ma
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Dong-Mei Hai
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Ning Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Jia-Mei Yang
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Xiao-Bing Lan
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Juan Du
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Li-Shan Yang
- Department
of Emergency, General Hospital of Ningxia
Medical University, Yinchuan 750004, Ningxia, PR China
| | - Tao Sun
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
- Ningxia Key Laboratory of Cerebrocranial
Disease, The Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
| | - Jian Qiang Yu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
- Ningxia
Hui Medicine Modern Engineering Research Center and Collaborative
Innovation Center, Ningxia Medical University, Yinchuan 750004, Ningxia, PR China
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Li X, Hu X, Jiang Y, Wang D, Wang T, Li B. Autonomic behavioral impairment induced by simazine exposure during early life of male mouse is mediated by Lmx1a/Wnt1 pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:776-788. [PMID: 34936186 DOI: 10.1002/tox.23442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/06/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Simazine is a widely used herbicide and known as an environmental estrogen. Multiple studies have proved simazine can induced the degeneration of dopaminergic neuron resulting in a degenerative disease-like syndrome. Herein, we explored the neurotoxicity of simazine on the dopaminergic nervous system of embryos and weaned offspring during the maternal gestation period or the maternal gestation and lactation periods. We found that simazine disturbed the crucial components expression involved in Lmx1a/Wnt1 pathway of dopaminergic neuron in embryonic and weaned offspring. Furthermore, morphological and behavioral tests performed on weaned male offspring treated by simazine suggested that the grip strength, autonomic exploring, and the space sense ability were weakened, as well as the pathological damage of dopaminergic neuron was clearly observed. But, the same neurotoxicity of simazine is less significantly observed in female offspring. Our findings will provide reliable reference for the determination of environmental limits and new insight into the pathogenesis of nonfamilial neurodegenerative diseases related to environmental risk factors.
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Affiliation(s)
- Xueting Li
- Department of Hygienic Toxicology, College of Public Health, Harbin Medical University, Harbin, China
- Department of Epidemiology, College of Public Health, Harbin Medical University, Harbin, China
| | - Xiaomeng Hu
- Department of Hygienic Toxicology, College of Public Health, Harbin Medical University, Harbin, China
| | - Yujia Jiang
- Department of Hygienic Toxicology, College of Public Health, Harbin Medical University, Harbin, China
| | - Dandan Wang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Ting Wang
- Department of Hygienic Toxicology, College of Public Health, Harbin Medical University, Harbin, China
| | - Baixiang Li
- Department of Hygienic Toxicology, College of Public Health, Harbin Medical University, Harbin, China
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