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Aria F, Pandey K, Alberini CM. Excessive Protein Accumulation and Impaired Autophagy in the Hippocampus of Angelman Syndrome Modeled in Mice. Biol Psychiatry 2023; 94:68-83. [PMID: 36764852 PMCID: PMC10276539 DOI: 10.1016/j.biopsych.2022.11.016] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 11/03/2022] [Accepted: 11/18/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Angelman syndrome (AS), a neurodevelopmental disorder caused by abnormalities of the 15q11.2-q13.1 chromosome region, is characterized by impairment of cognitive and motor functions, sleep problems, and seizures. How the genetic defects of AS produce these neurological symptoms is unclear. Mice modeling AS (AS mice) accumulate activity-regulated cytoskeleton-associated protein (ARC/ARG3.1), a neuronal immediate early gene (IEG) critical for synaptic plasticity. This accumulation suggests an altered protein metabolism. METHODS Focusing on the dorsal hippocampus (dHC), a brain region critical for memory formation and cognitive functions, we assessed levels and tissue distribution of IEGs, de novo protein synthesis, and markers of protein synthesis, endosomes, autophagy, and synaptic functions in AS mice at baseline and following learning. We also tested autophagic flux and memory retention following autophagy-promoting treatment. RESULTS AS dHC exhibited accumulation of IEGs ARC, FOS, and EGR1; autophagy proteins MLP3B, SQSTM1, and LAMP1; and reduction of the endosomal protein RAB5A. AS dHC also had increased levels of de novo protein synthesis, impaired autophagic flux with accumulation of autophagosome, and altered synaptic protein levels. Contextual fear conditioning significantly increased levels of IEGs and autophagy proteins, de novo protein synthesis, and autophagic flux in the dHC of normal mice, but not in AS mice. Enhancing autophagy in the dHC alleviated AS-related memory and autophagic flux impairments. CONCLUSIONS A major biological deficit of AS brain is a defective protein metabolism, particularly that dynamically regulated by learning, resulting in stalled autophagy and accumulation of neuronal proteins. Activating autophagy ameliorates AS cognitive impairments and dHC protein accumulation.
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Affiliation(s)
- Francesca Aria
- Center for Neural Science, New York University, New York, New York
| | - Kiran Pandey
- Center for Neural Science, New York University, New York, New York
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2
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Gonzalez Porras MA, Gransee HM, Denton TT, Shen D, Webb KL, Brinker CJ, Noureddine A, Sieck GC, Mantilla CB. CTB-targeted protocells enhance ability of lanthionine ketenamine analogs to induce autophagy in motor neuron-like cells. Sci Rep 2023; 13:2581. [PMID: 36781993 PMCID: PMC9925763 DOI: 10.1038/s41598-023-29437-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
Impaired autophagy, a cellular digestion process that eliminates proteins and damaged organelles, has been implicated in neurodegenerative diseases, including motor neuron disorders. Motor neuron targeted upregulation of autophagy may serve as a promising therapeutic approach. Lanthionine ketenamine (LK), an amino acid metabolite found in mammalian brain tissue, activates autophagy in neuronal cell lines. We hypothesized that analogs of LK can be targeted to motor neurons using nanoparticles to improve autophagy flux. Using a mouse motor neuron-like hybrid cell line (NSC-34), we tested the effect of three different LK analogs on autophagy modulation, either alone or loaded in nanoparticles. For fluorescence visualization of autophagy flux, we used a mCherry-GFP-LC3 plasmid reporter. We also evaluated protein expression changes in LC3-II/LC3-I ratio obtained by western blot, as well as presence of autophagic vacuoles per cell obtained by electron microscopy. Delivering LK analogs with targeted nanoparticles significantly enhanced autophagy flux in differentiated motor neuron-like cells compared to LK analogs alone, suggesting the need of a delivery vehicle to enhance their efficacy. In conclusion, LK analogs loaded in nanoparticles targeting motor neurons constitute a promising treatment option to induce autophagy flux, which may serve to mitigate motor neuron degeneration/loss and preserve motor function in motor neuron disease.
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Affiliation(s)
- Maria A Gonzalez Porras
- Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX, USA
| | - Heather M Gransee
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, MN, USA
| | - Travis T Denton
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University Health Sciences Spokane, Spokane, WA, USA
- Department of Translational Medicine and Physiology, Elson S. Floyd, College of Medicine, Washington State University Health Sciences Spokane, Spokane, WA, USA
- Steve Gleason Institute for Neuroscience, Washington State University Health Sciences Spokane, Spokane, WA, USA
| | - Dunxin Shen
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University Health Sciences Spokane, Spokane, WA, USA
| | - Kevin L Webb
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - C Jeffrey Brinker
- Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM, USA
- Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA
- Department of Molecular Genetics and Microbiology, University of New Mexico, Albuquerque, NM, USA
| | - Achraf Noureddine
- Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM, USA
- Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA
| | - Gary C Sieck
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, MN, USA
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Carlos B Mantilla
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.
- MB2-758, St Mary's Hospital, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
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Cunha A, Gaubert A, Verget J, Thiolat ML, Barthélémy P, Latxague L, Dehay B. Trehalose-Based Nucleolipids as Nanocarriers for Autophagy Modulation: An In Vitro Study. Pharmaceutics 2022; 14:857. [PMID: 35456691 PMCID: PMC9026460 DOI: 10.3390/pharmaceutics14040857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/08/2022] [Indexed: 01/03/2023] Open
Abstract
The Autophagy Lysosomal Pathway is one of the most important mechanisms for removing dysfunctional cellular components. Increasing evidence suggests that alterations in this pathway play a pathogenic role in Parkinson's disease, making it a point of particular vulnerability. Numerous studies have proposed nanotechnologies as a promising approach for delivering active substances within the central nervous system to treat and diagnose neurodegenerative diseases. In this context, the aim was to propose the development of a new pharmaceutical technology for the treatment of neurodegenerative diseases. We designed a trehalose-based nanosystem by combining both a small natural autophagy enhancer molecule named trehalose and an amphiphilic nucleolipid conjugate. To improve nucleolipid protection and cellular uptake, these conjugates were formulated by rapid mixing in either solid lipid nanoparticles (Ø = 120.4 ± 1.4 nm) or incorporated into poly(lactic-co-glycolic acid) nanoparticles (Ø = 167.2 ± 2.4 nm). In vitro biological assays demonstrated a safe and an efficient cellular uptake associated with autophagy induction. Overall, these nucleolipid-based formulations represent a promising new pharmaceutical tool to deliver trehalose and restore the autophagy impaired function.
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Affiliation(s)
- Anthony Cunha
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
- Univ. Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France;
| | - Alexandra Gaubert
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Julien Verget
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | | | - Philippe Barthélémy
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Laurent Latxague
- Univ. Bordeaux, INSERM U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, 146 rue Léo Saignat, F-33076 Bordeaux, France; (A.C.); (A.G.); (J.V.); (P.B.); (L.L.)
| | - Benjamin Dehay
- Univ. Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France;
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Arotcarena M, Soria FN, Cunha A, Doudnikoff E, Prévot G, Daniel J, Blanchard‐Desce M, Barthélémy P, Bezard E, Crauste‐Manciet S, Dehay B. Acidic nanoparticles protect against α-synuclein-induced neurodegeneration through the restoration of lysosomal function. Aging Cell 2022; 21:e13584. [PMID: 35318803 PMCID: PMC9009122 DOI: 10.1111/acel.13584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/11/2022] [Accepted: 02/01/2022] [Indexed: 12/17/2022] Open
Abstract
Parkinson's disease (PD) is an age‐related neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra, associated with the accumulation of misfolded α‐synuclein and lysosomal impairment, two events deemed interconnected. Protein aggregation is linked to defects in degradation systems such as the autophagy‐lysosomal pathway, while lysosomal dysfunction is partly related to compromised acidification. We have recently proven that acidic nanoparticles (aNPs) can re‐acidify lysosomes and ameliorate neurotoxin‐mediated dopaminergic neurodegeneration in mice. However, no lysosome‐targeted approach has yet been tested in synucleinopathy models in vivo. Here, we show that aNPs increase α‐synuclein degradation through enhancing lysosomal activity in vitro. We further demonstrate in vivo that aNPs protect nigral dopaminergic neurons from cell death, ameliorate α‐synuclein pathology, and restore lysosomal function in mice injected with PD patient‐derived Lewy body extracts carrying toxic α‐synuclein aggregates. Our results support lysosomal re‐acidification as a disease‐modifying strategy for the treatment of PD and other age‐related proteinopathies.
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Affiliation(s)
| | - Federico N. Soria
- Univ. Bordeaux CNRS IMN UMR 5293 Bordeaux France
- Achucarro Basque Center for Neuroscience Dpto. Neurociencias Universidad del País Vasco (UPV/EHU) Leioa Spain
| | - Anthony Cunha
- Univ. Bordeaux CNRS IMN UMR 5293 Bordeaux France
- Université de Bordeaux INSERM U1212 CNRS UMR 5320 ARNA ARN: Régulations Naturelle et Artificielle ChemBioPharm Bordeaux France
| | | | - Geoffrey Prévot
- Univ. Bordeaux CNRS IMN UMR 5293 Bordeaux France
- Université de Bordeaux INSERM U1212 CNRS UMR 5320 ARNA ARN: Régulations Naturelle et Artificielle ChemBioPharm Bordeaux France
- Biomedical Engineering and Imaging Institute Icahn School of Medicine at Mount Sinai New York New York USA
| | - Jonathan Daniel
- Université de Bordeaux Institut des Sciences Moléculaires CNRS UMR 5255 Talence France
| | | | - Philippe Barthélémy
- Université de Bordeaux INSERM U1212 CNRS UMR 5320 ARNA ARN: Régulations Naturelle et Artificielle ChemBioPharm Bordeaux France
| | - Erwan Bezard
- Univ. Bordeaux CNRS IMN UMR 5293 Bordeaux France
| | - Sylvie Crauste‐Manciet
- Université de Bordeaux INSERM U1212 CNRS UMR 5320 ARNA ARN: Régulations Naturelle et Artificielle ChemBioPharm Bordeaux France
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Ha J, Park SB. Callyspongiolide kills cells by inducing mitochondrial dysfunction via cellular iron depletion. Commun Biol 2021; 4:1123. [PMID: 34556786 PMCID: PMC8460830 DOI: 10.1038/s42003-021-02643-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022] Open
Abstract
The highly cytotoxic marine natural product callyspongiolide holds great promise as a warhead of antibody-drug conjugate in cancer therapeutics; however, the mechanism underlying its cytotoxicity remains unclear. To elucidate how callyspongiolide kills cells, we employed label-free target identification with thermal stability-shift-based fluorescence difference in two-dimensional (2-D) gel electrophoresis (TS-FITGE), which allowed observation of a unique phenomenon of protein-spot separation on 2-D gels upon treatment with callyspongiolide at increasing temperatures. During our exploration of what proteins were associated with this phenomenon as well as why it happens, we found that callyspongiolide induces mitochondrial/lysosomal dysfunction and autophagy inhibition. Moreover, molecular biology studies revealed that callyspongiolide causes lysosomal dysfunction, which induces cellular iron depletion and leads to mitochondrial dysfunction and subsequent cytotoxicity. Notably, these effects were rescued through iron supplementation. Although our approach was unable to reveal the direct protein targets of callyspongiolide, unique phenomena observed only by TS-FITGE provided critical insight into the mechanism of action of callyspongiolide and specifically its cytotoxic activity via induction of mitochondrial dysfunction through cellular iron depletion caused by lysosomal deacidification, which occurred independent of known programmed cell death pathways. In order to elucidate how callyspongiolide, a potent cytotoxic marine natural product, kills human lung cancer cells, Ha and Park employed TS-FITGE technique, a label-free target identification method with thermal stability-shift-based fluorescence difference in 2-D gel electrophoresis, allowing them to observe protein-spot separation upon treatment in increasing temperatures. They found that callyspongiolide induces lysosomal dysfunction followed by mitochondrial dysfunction as well as iron depletion, which sheds light on the mechanism of action of callyspongiolide.
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Affiliation(s)
- Jaeyoung Ha
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea
| | - Seung Bum Park
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea. .,CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Korea. .,SPARK Biopharma, Inc, Seoul, 08791, Korea.
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Mathew B, Chennakesavalu M, Sharma M, Torres LA, Stelman CR, Tran S, Patel R, Burg N, Salkovski M, Kadzielawa K, Seiler F, Aldrich LN, Roth S. Autophagy and post-ischemic conditioning in retinal ischemia. Autophagy 2021; 17:1479-1499. [PMID: 32452260 PMCID: PMC8205079 DOI: 10.1080/15548627.2020.1767371] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 04/29/2020] [Accepted: 05/06/2020] [Indexed: 12/21/2022] Open
Abstract
Retinal ischemia is a major cause of vision loss and a common underlying mechanism associated with diseases, such as diabetic retinopathy and central retinal artery occlusion. We have previously demonstrated the robust neuroprotection in retina induced by post-conditioning (post-C), a brief period of ischemia, 24 h, following a prolonged and damaging initial ischemia. The mechanisms underlying post-C-mediated retinal protection are largely uncharacterized. We hypothesized that macroautophagy/autophagy is a mediator of post-C-induced neuroprotection. This study employed an in vitro model of oxygen glucose deprivation (OGD) in the retinal R28 neuronal cell line, and an in vivo rat model of retinal ischemic injury. In vivo, there were significant increases in autophagy proteins, MAP1LC3-II/LC3-II, and decreases in SQSTM1/p62 (sequestosome 1) in ischemia/post-C vs. ischemia/sham post-C. Blockade of Atg5 and Atg7 in vivo decreased LC3-II, increased SQSTM1, attenuated the functional protective effect of post-C, and increased histological damage and TUNEL compared to non-silencing siRNA. TUNEL after ischemia in vivo was found in retinal ganglion, amacrine, and photoreceptor cells. Blockade of Atg5 attenuated the post-C neuroprotection by a brief period of OGD in vitro. Moreover, in vitro, post-C attenuated cell death, loss of cellular proliferation, and defective autophagic flux from prolonged OGD. Stimulating autophagy using Tat-Beclin 1 rescued retinal neurons from cell death after OGD. As a whole, our results suggest that autophagy is required for the neuroprotective effect of retinal ischemic post-conditioning and augmentation of autophagy offers promise in the treatment of retinal ischemic injury.Abbreviations: BECN1: Beclin 1, autophagy related; DAPI: 4',6-diamidino-2-phenylindole; DR: diabetic retinopathy; EdU: 5-ethynyl-2'-deoxyuridine; ERG: Electroretinogram; FITC: Fluorescein isothiocyanate; GCL: Ganglion cell layer; GFAP: Glial fibrillary acidic protein; INL: Inner nuclear layer; IPL: Inner plexiform layer; MAP1LC3/LC3: Microtubule-associated protein 1 light chain 3; OGD: Oxygen-glucose deprivation; ONL: Outer nuclear layer; OP: Oscillatory potential; PFA: Paraformaldehyde; PL: Photoreceptor layer; post-C: post-conditioning; RFP: Red fluorescent protein; RGC: Retinal ganglion cell; RPE: Retinal pigment epithelium; RT-PCR: Real-time polymerase chain reaction; SEM: Standard error of the mean; siRNA: Small interfering RNA; SQSTM1: Sequestosome 1; STR: Scotopic threshold response; Tat: Trans-activator of transcription; TUNEL: Terminal deoxynucleotidyl transferase dUTP nick end labeling.
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Affiliation(s)
- Biji Mathew
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Monica Sharma
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Leianne A. Torres
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Clara R. Stelman
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Sophie Tran
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Raj Patel
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Nathan Burg
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Maryna Salkovski
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Konrad Kadzielawa
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Figen Seiler
- Electron Microscopy Core Facility, University of Illinois at Chicago, Chicago, IL, USA
| | - Leslie N. Aldrich
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Steven Roth
- Department of Anesthesiology, And College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
- Department of Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
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Chlorogenic acid enhances autophagy by upregulating lysosomal function to protect against SH-SY5Y cell injury induced by H 2O 2. Exp Ther Med 2021; 21:426. [PMID: 33747165 PMCID: PMC7967846 DOI: 10.3892/etm.2021.9843] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Autophagy serves an important role in amyloid-β (Aβ) metabolism and τ processing and clearance in Alzheimer's disease. The progression of Aβ plaque accumulation and hyperphosphorylation of τ proteins are enhanced by oxidative stress. A hydrogen peroxide (H2O2) injury cell model was established using SH-SY5Y cells. Cells were randomly divided into normal, H2O2 and chlorogenic acid (5-caffeoylquinic acid; CGA) groups. The influence of CGA on cell viability was evaluated using a Cell Counting Kit-8 assay and cell death was assessed using Hoechst 33342 nuclear staining. Autophagy induction and fusion of autophagic vacuoles assays were performed using monodansylcadaverine staining. Additionally, SH-SY5Y cells expressing Ad-mCherry-green fluorescent protein-LC3B were established to detect autophagic flow. LysoTracker Red staining was used to evaluate lysosome function and LysoSensor™ Green staining assays were used to assess lysosomal acidification. The results demonstrated that CGA decreased the apoptosis rate, increased cell viability and improved cell morphology in H2O2-treated SH-SY5Y cells. Furthermore, CGA alleviated the accumulation of autophagic vacuoles, reduced the LC3BII/I ratio and decreased P62 levels, resulting in increased autophagic flux. Additionally, CGA upregulated lysosome acidity and increased the expression levels of cathepsin D. Importantly, these effects of CGA on H2O2-treated SH-SY5Y cells were mediated via the mTOR-transcription factor EB signaling pathway. These results indicated that CGA protected cells against H2O2-induced oxidative damage via the upregulation of autophagosomes, which promoted autophagocytic degradation and increased autophagic flux.
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Olivas-Aguirre M, Torres-López L, Valle-Reyes JS, Hernández-Cruz A, Pottosin I, Dobrovinskaya O. Cannabidiol directly targets mitochondria and disturbs calcium homeostasis in acute lymphoblastic leukemia. Cell Death Dis 2019; 10:779. [PMID: 31611561 PMCID: PMC6791884 DOI: 10.1038/s41419-019-2024-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/22/2019] [Accepted: 09/24/2019] [Indexed: 12/13/2022]
Abstract
Anticancer properties of non-psychoactive cannabinoid cannabidiol (CBD) have been demonstrated on tumors of different histogenesis. Different molecular targets for CBD were proposed, including cannabinoid receptors and some plasma membrane ion channels. Here we have shown that cell lines derived from acute lymphoblastic leukemia of T lineage (T-ALL), but not resting healthy T cells, are highly sensitive to CBD treatment. CBD effect does not depend on cannabinoid receptors or plasma membrane Ca2+-permeable channels. Instead, CBD directly targets mitochondria and alters their capacity to handle Ca2+. At lethal concentrations, CBD causes mitochondrial Ca2+ overload, stable mitochondrial transition pore formation and cell death. Our results suggest that CBD is an attractive candidate to be included into chemotherapeutic protocols for T-ALL treatment.
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Affiliation(s)
- Miguel Olivas-Aguirre
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. 25 de Julio 965, Col. 28030, Colima, Mexico
| | - Liliana Torres-López
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. 25 de Julio 965, Col. 28030, Colima, Mexico
| | - Juan Salvador Valle-Reyes
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. 25 de Julio 965, Col. 28030, Colima, Mexico
| | - Arturo Hernández-Cruz
- Department of Cognitive Neuroscience and National Laboratory of Channelopathies (LaNCa), Institute of Cellular Physiology, National Autonomous University of Mexico, Mexico-City, Mexico
| | - Igor Pottosin
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. 25 de Julio 965, Col. 28030, Colima, Mexico.
| | - Oxana Dobrovinskaya
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. 25 de Julio 965, Col. 28030, Colima, Mexico.
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Vucicevic L, Misirkic-Marjanovic M, Harhaji-Trajkovic L, Maric N, Trajkovic V. Mechanisms and therapeutic significance of autophagy modulation by antipsychotic drugs. Cell Stress 2018; 2:282-291. [PMID: 31225453 PMCID: PMC6551804 DOI: 10.15698/cst2018.11.161] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In this review we analyze the ability of antipsychotic medications to modulate macroautophagy, a process of controlled lysosomal digestion of cellular macromolecules and organelles. We focus on its molecular mechanisms, consequences for the function/survival of neuronal and other cells, and the contribution to the beneficial and side-effects of antipsychotics in the treatment of schizophrenia, neurodegeneration, and cancer. A wide range of antipsychotics was able to induce neuronal autophagy as a part of the adaptive stress response apparently independent of mammalian target of rapamycin and dopamine receptor blockade. Autophagy induction by antipsychotics could contribute to reducing neuronal dysfunction in schizophrenia, but also to the adverse effects associated with their long-term use, such as brain volume loss and weight gain. In neurodegenerative diseases, antipsychotic-stimulated autophagy might help to increase the clearance and reduce neurotoxicity of aggregated proteotoxins. However, the possibility that some antipsychotics might block autophagic flux and potentially contribute to proteotoxin-mediated neurodegeneration must be considered. Finally, the anticancer effects of autophagy induction by antipsychotics make plausible their repurposing as adjuncts to standard cancer therapy.
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Affiliation(s)
- Ljubica Vucicevic
- Institute for Biological Research, University of Belgrade, Belgrade, Serbia
| | | | | | - Nadja Maric
- Clinic of Psychiatry, Clinical Centre of Serbia and School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vladimir Trajkovic
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Dr. Subotica 1, 11000 Belgrade, Serbia
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