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de Bartolomeis A, Ciccarelli M, De Simone G, Mazza B, Barone A, Vellucci L. Canonical and Non-Canonical Antipsychotics' Dopamine-Related Mechanisms of Present and Next Generation Molecules: A Systematic Review on Translational Highlights for Treatment Response and Treatment-Resistant Schizophrenia. Int J Mol Sci 2023; 24:ijms24065945. [PMID: 36983018 PMCID: PMC10051989 DOI: 10.3390/ijms24065945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Schizophrenia is a severe psychiatric illness affecting almost 25 million people worldwide and is conceptualized as a disorder of synaptic plasticity and brain connectivity. Antipsychotics are the primary pharmacological treatment after more than sixty years after their introduction in therapy. Two findings hold true for all presently available antipsychotics. First, all antipsychotics occupy the dopamine D2 receptor (D2R) as an antagonist or partial agonist, even if with different affinity; second, D2R occupancy is the necessary and probably the sufficient mechanism for antipsychotic effect despite the complexity of antipsychotics' receptor profile. D2R occupancy is followed by coincident or divergent intracellular mechanisms, implying the contribution of cAMP regulation, β-arrestin recruitment, and phospholipase A activation, to quote some of the mechanisms considered canonical. However, in recent years, novel mechanisms related to dopamine function beyond or together with D2R occupancy have emerged. Among these potentially non-canonical mechanisms, the role of Na2+ channels at the dopamine at the presynaptic site, dopamine transporter (DAT) involvement as the main regulator of dopamine concentration at synaptic clefts, and the putative role of antipsychotics as chaperones for intracellular D2R sequestration, should be included. These mechanisms expand the fundamental role of dopamine in schizophrenia therapy and may have relevance to considering putatively new strategies for treatment-resistant schizophrenia (TRS), an extremely severe condition epidemiologically relevant and affecting almost 30% of schizophrenia patients. Here, we performed a critical evaluation of the role of antipsychotics in synaptic plasticity, focusing on their canonical and non-canonical mechanisms of action relevant to the treatment of schizophrenia and their subsequent implication for the pathophysiology and potential therapy of TRS.
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Affiliation(s)
- Andrea de Bartolomeis
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
| | - Mariateresa Ciccarelli
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
| | - Giuseppe De Simone
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
| | - Benedetta Mazza
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
| | - Annarita Barone
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
| | - Licia Vellucci
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry, University Medical School of Naples "Federico II", 80131 Naples, Italy
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Rabkin SW, Tang JKK. Clozapine-induced Myocarditis: Pathophysiologic Mechanisms and Implications for Therapeutic Approaches. Curr Mol Pharmacol 2023; 16:60-70. [PMID: 35152873 DOI: 10.2174/1874467215666220211094910] [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: 06/15/2021] [Revised: 11/19/2021] [Accepted: 11/29/2021] [Indexed: 11/22/2022]
Abstract
Clozapine, a superior treatment for treatment-resistant schizophrenia can cause potentially life-threatening myocarditis and dilated cardiomyopathy. While the occurrence of this condition is well known, its molecular mechanisms are unclear and may be multifactorial. Putative mechanisms warrant an in-depth review not only from the perspective of toxicity but also for understanding the molecular mechanisms of the adverse cardiac effects of clozapine and the development of novel therapeutic approaches. Clozapine-induced cardiac toxicity encompasses a diverse set of pathways, including (i) immune modulation and proinflammatory processes encompassing an IgEmediated (type I hypersensitivity) response and perhaps a cytokine release syndrome (ii) catecholaminergic activation (iii) induction of free radicals and oxidative stress (iv) activation of cardiomyocyte cell death pathways, including apoptosis, ischemia through impairment in coronary blood flow via changes in endothelial production of NO and vasoconstriction induced by norepinephrine as well as other factors released from cardiac mast cells. (v) In addition, an extensive examination of the effects of clozapine on non-cardiac cellular proteins demonstrates that clozapine can impair enzymes involved in cellular metabolism, such as pyruvate kinase, mitochondrial malate dehydrogenase, and other proteins, including α-enolase, triosephosphate isomerase and cofilin, which might explain clozapine-induced reductions in myocardial energy generation for cell viability as well as contractile function. Pharmacologic antagonism of these cellular protein effects may lead to the development of strategies to antagonize the cardiac damage induced by clozapine.
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Affiliation(s)
- Simon W Rabkin
- Division of Cardiology, University of British Columbia, Vancouver, B.C., Canada
| | - Jacky K K Tang
- Division of Cardiology, University of British Columbia, Vancouver, B.C., Canada
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3
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Torii-Goto A, Yoshimi A, Tashiro Y, Ukigai M, Matsumoto A, Ozaki N, Noda Y. A Reactive Metabolite of Clozapine Induces Hematopoietic Toxicity in HL-60 Cells Undergoing Granulocytic Differentiation through Its Effect on Glutathione Metabolism. Biol Pharm Bull 2022; 45:1232-1237. [DOI: 10.1248/bpb.b22-00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Aya Torii-Goto
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University
| | - Akira Yoshimi
- Department of Psychiatry, Nagoya University Graduate School of Medicine
| | - Yuko Tashiro
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University
| | - Mako Ukigai
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University
| | - Aoi Matsumoto
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University
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de Bartolomeis A, Vellucci L, Barone A, Manchia M, De Luca V, Iasevoli F, Correll CU. Clozapine's multiple cellular mechanisms: What do we know after more than fifty years? A systematic review and critical assessment of translational mechanisms relevant for innovative strategies in treatment-resistant schizophrenia. Pharmacol Ther 2022; 236:108236. [PMID: 35764175 DOI: 10.1016/j.pharmthera.2022.108236] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 12/21/2022]
Abstract
Almost fifty years after its first introduction into clinical care, clozapine remains the only evidence-based pharmacological option for treatment-resistant schizophrenia (TRS), which affects approximately 30% of patients with schizophrenia. Despite the long-time experience with clozapine, the specific mechanism of action (MOA) responsible for its superior efficacy among antipsychotics is still elusive, both at the receptor and intracellular signaling level. This systematic review is aimed at critically assessing the role and specific relevance of clozapine's multimodal actions, dissecting those mechanisms that under a translational perspective could shed light on molecular targets worth to be considered for further innovative antipsychotic development. In vivo and in vitro preclinical findings, supported by innovative techniques and methods, together with pharmacogenomic and in vivo functional studies, point to multiple and possibly overlapping MOAs. To better explore this crucial issue, the specific affinity for 5-HT2R, D1R, α2c, and muscarinic receptors, the relatively low occupancy at dopamine D2R, the interaction with receptor dimers, as well as the potential confounder effects resulting in biased ligand action, and lastly, the role of the moiety responsible for lipophilic and alkaline features of clozapine are highlighted. Finally, the role of transcription and protein changes at the synaptic level, and the possibility that clozapine can directly impact synaptic architecture are addressed. Although clozapine's exact MOAs that contribute to its unique efficacy and some of its severe adverse effects have not been fully understood, relevant information can be gleaned from recent mechanistic understandings that may help design much needed additional therapeutic strategies for TRS.
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Affiliation(s)
- Andrea de Bartolomeis
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment Resistant Psychosis, Department of Neuroscience, Reproductive Science and Dentistry, University Medical School of Naples "Federico II", Naples, Italy.
| | - Licia Vellucci
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment Resistant Psychosis, Department of Neuroscience, Reproductive Science and Dentistry, University Medical School of Naples "Federico II", Naples, Italy
| | - Annarita Barone
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment Resistant Psychosis, Department of Neuroscience, Reproductive Science and Dentistry, University Medical School of Naples "Federico II", Naples, Italy
| | - Mirko Manchia
- Section of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy; Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - Felice Iasevoli
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment Resistant Psychosis, Department of Neuroscience, Reproductive Science and Dentistry, University Medical School of Naples "Federico II", Naples, Italy
| | - Christoph U Correll
- The Zucker Hillside Hospital, Department of Psychiatry, Northwell Health, Glen Oaks, NY, USA; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Psychiatry and Molecular Medicine, Hempstead, NY, USA; Charité Universitätsmedizin Berlin, Department of Child and Adolescent Psychiatry, Berlin, Germany
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Hino M, Kondo T, Kunii Y, Matsumoto J, Wada A, Niwa SI, Setou M, Yabe H. Tubulin/microtubules as novel clozapine targets. Neuropsychopharmacol Rep 2021; 42:32-41. [PMID: 34964309 PMCID: PMC8919115 DOI: 10.1002/npr2.12221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/16/2021] [Accepted: 11/21/2021] [Indexed: 01/06/2023] Open
Abstract
Aim Clozapine is currently the only effective drug for treatment‐resistant schizophrenia; nonetheless, its pharmacological mechanism remains unclear, and its administration is limited because of severe adverse effects. By comparing the binding proteins of clozapine and its derivative olanzapine, which is safer but less effective than clozapine, we attempted to clarify the mechanism of action specific to clozapine. Methods First, using the polyproline rod conjugates attached with clozapine or olanzapine, clozapine‐binding proteins in extracts from the cerebra of 7‐week‐old ICR mice were isolated and separated by sodium dodecyl sulfate‐polyacrylamide gel electrophoresis (SDS‐PAGE) and analyzed by liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) to identify proteins. Second, the effect of clozapine on tubulin polymerization was determined turbidimetrically. Finally, the cellular effects of clozapine were observed in HeLa cells by immunofluorescence microscopy. Results Alpha and β tubulins were the most abundant clozapine‐binding proteins. We also found that clozapine directly binds with α and β tubulin heterodimers to inhibit their polymerization to form microtubules and disturbs the microtubule network, causing mitotic arrest in HeLa cells. Conclusion These results suggest that α and β tubulin heterodimers are targeted by the clozapine and the microtubules are involved in the etiology of schizophrenia. Clozapine‐binding proteins were investigated in mouse brain by using the polyproline rod method. The most abundant clozapine‐binding proteins were α and β tubulins. This figure shows immunofluorescence staining of HeLa cells treated without or with indicated doses of clozapine for 3 hours with anti‐tubulin antibody, indicating that clozapine disrupts the microtubule network in the cell. Scale bar, 20 μm.![]()
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Affiliation(s)
- Mizuki Hino
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Miyagi, Japan
| | - Takeshi Kondo
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.,International Mass Imaging Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yasuto Kunii
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.,Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Miyagi, Japan
| | - Junya Matsumoto
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan
| | - Akira Wada
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan
| | - Shin-Ichi Niwa
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.,Department of Psychiatry, Aizu Medical Center, School of Medicine, Fukushima Medical University, Aizuwakamatsu, Fukushima, Japan
| | - Mitsutoshi Setou
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.,International Mass Imaging Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.,Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Hirooki Yabe
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan
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Mejia-Gutierrez M, Vásquez-Paz BD, Fierro L, Maza JR. In Silico Repositioning of Dopamine Modulators with Possible Application to Schizophrenia: Pharmacophore Mapping, Molecular Docking and Molecular Dynamics Analysis. ACS OMEGA 2021; 6:14748-14764. [PMID: 34151057 PMCID: PMC8209794 DOI: 10.1021/acsomega.0c05984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/30/2021] [Indexed: 05/17/2023]
Abstract
We have performed theoretical calculations with 70 drugs that have been considered in 231 clinical trials as possible candidates to repurpose drugs for schizophrenia based on their interactions with the dopaminergic system. A hypothesis of shared pharmacophore features was formulated to support our calculations. To do so, we have used the crystal structure of the D2-like dopamine receptor in complex with risperidone, eticlopride, and nemonapride. Linagliptin, citalopram, flunarizine, sildenafil, minocycline, and duloxetine were the drugs that best fit with our model. Molecular docking calculations, molecular dynamics outcomes, blood-brain barrier penetration, and human intestinal absorption were studied and compared with the results. From the six drugs selected in the shared pharmacophore features input, flunarizine showed the best docking score with D2, D3, and D4 dopamine receptors and had high stability during molecular dynamics simulations. Flunarizine is a frequently used medication to treat migraines and vertigo. However, its antipsychotic properties have been previously hypothesized, particularly because of its possible ability to block the D2 dopamine receptors.
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Affiliation(s)
- Melissa Mejia-Gutierrez
- Faculty
of Natural and Exact Sciences, Department of Chemistry, and School
of Basic Sciences, Department of Physiological Sciences, Faculty of
Health, Laboratory and Research group - Pharmacology Univalle Group, Universidad del Valle, 25360 Cali, Colombia
| | - Bryan D. Vásquez-Paz
- Faculty
of Natural and Exact Sciences, Department of Chemistry, Laboratory
and Research group - Pharmacology Univalle Group, Universidad del Valle, 25360 Cali, Colombia
| | - Leonardo Fierro
- Faculty
of Health, School of Basic Sciences, Department of Physiological Sciencesh,
Laboratory and Research group - Pharmacology Univalle Group, Universidad del Valle, 25360 Cali, Colombia
| | - Julio R. Maza
- Faculty
of Basic Sciences, Department of Chemistry, Laboratory and Research
group - Organic Chemistry and Biomedical Group, Universidad del Atlántico, 081001 Puerto Colombia, Colombia
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Huang X, Ren L, Hou L, Fan H, Wang C, Wang C, Li Y. Paeoniflorin ameliorates antipsychotic-induced hyperprolactinemia in rats by attenuating impairment of the dopamine D2 receptor and TGF-β1 signaling pathways in the hypothalamus and pituitary. JOURNAL OF ETHNOPHARMACOLOGY 2020; 257:112862. [PMID: 32294507 DOI: 10.1016/j.jep.2020.112862] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/07/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paeoniflorin, a prominent component in some Chinese formulas for hyperprolactinemia-associated disorders, has been found to inhibit prolactin secretion in prolactinoma cells. AIM To examine the efficacy of paeoniflorin on hyperprolactinemia and the underlying mechanisms of action. MATERIALS AND METHODS Hyperprolactinemia in female rats was generated by administration of olanzapine (5 mg/kg, by a gavage method, once daily, × 13 weeks). The rats were co-treated with paeoniflorin (10 and 50 mg/kg). Prolactin and TGF-β1 concentrations were detected by ELISA. Protein expression was determined by Western blot. The effect in MMQ cells was also examined. RESULTS Paeoniflorin inhibited olanzapine-induced increases in plasma prolactin concentration and prolactin protein overexpression in the pituitary and hypothalamus of rats. Further, paeoniflorin restored olanzapine-induced downregulation of pituitary and hypothalamic dopamine D2 receptor (D2R) protein expression. More importantly, paeoniflorin attenuated olanzapine-suppressed protein expression of transforming growth factor (TGF)-β1 and its downstream genes, type II TGF-β receptor, type I TGF-β receptor and phosphorylated SMAD3 in the tissues. However, paeoniflorin did not affect plasma TGF-β1 concentration and hepatic TGF-β1 protein expression. In accord, olanzapine-induced increase in prolactin concentration, upregulation of prolactin protein expression, and downregulation of protein expression of the D2R and TGF-β1 signals in MMQ cells were attenuated. CONCLUSIONS This study demonstrates that paeoniflorin ameliorates olanzapine-induced hyperprolactinemia in rats by attenuating impairment of the D2R and TGF-β1 signaling pathways in the hypothalamus and pituitary. Our findings may provide evidence to support the use of paeoniflorin-contained Chinese herbs and formulas for hyperprolactinemia and its associated disorders.
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Affiliation(s)
- Xiaoqian Huang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Liying Ren
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Lianbing Hou
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Hua Fan
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Chengliang Wang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Chunxia Wang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Yuhao Li
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; Endocrinology and Metabolism Group, Sydney Institute of Health Sciences/Sydney Institute of Traditional Chinese Medicine, NSW, 2000 Australia.
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8
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Song L, Huang Y, Gou M, Crommen J, Jiang Z, Feng Y. Method development and validation for the determination of biogenic amines in soy sauce using supercritical fluid chromatography coupled with single quadrupole mass spectrometry. J Sep Sci 2020; 43:2728-2736. [DOI: 10.1002/jssc.202000030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/31/2020] [Accepted: 04/08/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Liu Song
- Central LaboratoryGuangdong Pharmaceutical University Guangzhou P. R. China
- Institute of Pharmaceutical AnalysisCollege of PharmacyJinan University Guangzhou P. R. China
| | - Yang Huang
- Shenzhen Institute for Drug Control Shenzhen P. R. China
| | - Marie‐Jia Gou
- Laboratory for the Analysis of MedicineDepartment of Pharmaceutical SciencesCIRM, University of Liege Liege Belgium
| | - Jacques Crommen
- Laboratory for the Analysis of MedicineDepartment of Pharmaceutical SciencesCIRM, University of Liege Liege Belgium
| | - Zhengjin Jiang
- Institute of Pharmaceutical AnalysisCollege of PharmacyJinan University Guangzhou P. R. China
| | - Yifan Feng
- Central LaboratoryGuangdong Pharmaceutical University Guangzhou P. R. China
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Yu Z, Jin W, Dong X, Ao M, Liu H, Yu L. Safety evaluation and protective effects of ethanolic extract from maca (Lepidium meyenii Walp.) against corticosterone and H2O2 induced neurotoxicity. Regul Toxicol Pharmacol 2020; 111:104570. [DOI: 10.1016/j.yrtph.2019.104570] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/29/2019] [Accepted: 12/24/2019] [Indexed: 01/01/2023]
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Moreau D, Vacca F, Vossio S, Scott C, Colaco A, Paz Montoya J, Ferguson C, Damme M, Moniatte M, Parton RG, Platt FM, Gruenberg J. Drug-induced increase in lysobisphosphatidic acid reduces the cholesterol overload in Niemann-Pick type C cells and mice. EMBO Rep 2019; 20:e47055. [PMID: 31267706 PMCID: PMC6607015 DOI: 10.15252/embr.201847055] [Citation(s) in RCA: 25] [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: 09/13/2018] [Revised: 04/12/2019] [Accepted: 04/23/2019] [Indexed: 12/26/2022] Open
Abstract
Most cells acquire cholesterol by endocytosis of circulating low-density lipoproteins (LDLs). After cholesteryl ester de-esterification in endosomes, free cholesterol is redistributed to intracellular membranes via unclear mechanisms. Our previous work suggested that the unconventional phospholipid lysobisphosphatidic acid (LBPA) may play a role in modulating the cholesterol flux through endosomes. In this study, we used the Prestwick library of FDA-approved compounds in a high-content, image-based screen of the endosomal lipids, lysobisphosphatidic acid and LDL-derived cholesterol. We report that thioperamide maleate, an inverse agonist of the histamine H3 receptor HRH3, increases highly selectively the levels of lysobisphosphatidic acid, without affecting any endosomal protein or function that we tested. Our data also show that thioperamide significantly reduces the endosome cholesterol overload in fibroblasts from patients with the cholesterol storage disorder Niemann-Pick type C (NPC), as well as in liver of Npc1-/- mice. We conclude that LBPA controls endosomal cholesterol mobilization and export to cellular destinations, perhaps by fluidifying or buffering cholesterol in endosomal membranes, and that thioperamide has repurposing potential for the treatment of NPC.
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Affiliation(s)
- Dimitri Moreau
- Department of BiochemistryUniversity of GenevaGeneva 4Switzerland
| | - Fabrizio Vacca
- Department of BiochemistryUniversity of GenevaGeneva 4Switzerland
| | - Stefania Vossio
- Department of BiochemistryUniversity of GenevaGeneva 4Switzerland
| | - Cameron Scott
- Department of BiochemistryUniversity of GenevaGeneva 4Switzerland
| | | | | | - Charles Ferguson
- Institute for Molecular Bioscience and Center for Microscopy and MicroanalysisUniversity of QueenslandBrisbaneQldAustralia
| | - Markus Damme
- Biochemisches InstitutChristian‐Albrechts‐UniversitätKielGermany
| | - Marc Moniatte
- Mass Spectrometry Core FacilityEPFLLausanneSwitzerland
| | - Robert G Parton
- Institute for Molecular Bioscience and Center for Microscopy and MicroanalysisUniversity of QueenslandBrisbaneQldAustralia
| | | | - Jean Gruenberg
- Department of BiochemistryUniversity of GenevaGeneva 4Switzerland
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Yu Z, Jin W, Cui Y, Ao M, Liu H, Xu H, Yu L. Protective effects of macamides from Lepidium meyenii Walp. against corticosterone-induced neurotoxicity in PC12 cells. RSC Adv 2019; 9:23096-23108. [PMID: 35514490 PMCID: PMC9067313 DOI: 10.1039/c9ra03268a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/09/2019] [Indexed: 11/21/2022] Open
Abstract
Maca has attracted considerable attention owing to its neuroprotective effects in vitro and vivo. Macamides, a series of nonpolar and long-chain fatty acid N-benzylamides, are considered unique constituents in maca. This study investigated the protective effects of ethanol extracts of maca (EEM) and macamides on corticosterone-induced (CORT) neurotoxicity in rat pheochromocytoma (PC12) cells. CORT reduced cell viability and increased LDH release, intracellular ROS levels, and MMP decline rate, and induced mitochondrial apoptosis. However, pretreatment with EEM and macamides ameliorated CORT-induced neurotoxicity. EEM increased the cell viability and reduced the LDH release. M 18:1, M 18:2, and M 18:3 increased cell viability and reduced LDH release and intracellular ROS generation. M 18:2 and M 18:3 inhibited MMP reduction and reduced the Bax/Bcl-2 ratios. M 18:1 reduced the intracellular ROS without affecting other factors. Moreover, M 18:3 prevented CORT-induced mitochondrial apoptosis, restrained the expression levels of pro-apoptotic proteins, namely, Bax, cytochrome C, cleaved-caspase-3, and cleaved-PARP, and increased the expression levels of Bcl-2. In addition, M 18:3 increased Akt phosphorylation and the ability of M 18:3 to protect against CORT-induced cytotoxicity was remarkably reduced by LY294002, a PI3K phosphorylation inhibitor. M 18:3 also elevated the phosphorylation of CREB and activated the BDNF protein levels in CORT-induced PC12 cells. In conclusion, macamides, especially M 18:3, exert protective effects on CORT-induced PC12 cells. The cellular mechanism of M 18:3 against CORT-induced cytotoxicity may involve inhibition of mitochondrial apoptosis, and activation of Akt and CREB phosphorylation. Overall, macamides may potentially treat neuronal damage induced by CORT. Neuroprotection of macamides is probably associated with inhibition of the mitochondrial apoptotic and the activation of the phosphorylation of Akt and CREB.![]()
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Affiliation(s)
- Zejun Yu
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Wenwen Jin
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Yajie Cui
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Mingzhang Ao
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Hao Liu
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Hang Xu
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
| | - Longjiang Yu
- Institute of Resource Biology and Biotechnology
- Department of Biotechnology
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
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12
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Goto A, Yoshimi A, Nagai T, Ukigai M, Mouri A, Ozaki N, Noda Y. Human neutrophils show decreased survival upon long-term exposure to clozapine. Hum Psychopharmacol 2017; 32. [PMID: 28913970 DOI: 10.1002/hup.2629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/12/2017] [Accepted: 07/31/2017] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Clozapine is an atypical antipsychotic prescribed for treatment-resistant schizophrenic patients, but treatment with clozapine is strictly limited because it can induce lethal-hematologic side effects. We investigated the effects of short- and long-term exposure of human neutrophils derived from healthy subjects to clozapine and compared them with the effects of reactive metabolite of clozapine, olanzapine, and doxorubicin. METHODS Neutrophils were exposed to clozapine and olanzapine (1, 10, 50, or 100 μM), reactive metabolite of clozapine (50 or 100 μM), or doxorubicin (0.2 μM) and cultured for a short (2 hr) or long (24 or 48 hr) duration, and then the survival rate of neutrophils was calculated. RESULTS Decreased human neutrophil survival was observed in short-term exposure to clozapine (100 μM) and long-term exposure to clozapine even at a lower concentration (50 μM). A similar phenomenon was observed in reactive metabolite of clozapine and long-term exposure to doxorubicin (0.2 μM), but not to olanzapine (1-100 μM). CONCLUSIONS The effect of long-term exposure to clozapine on neutrophil survival is plausibly associated with delayed onset of agranulocytosis after initial exposure. Our results suggest that human neutrophils are vulnerable to clozapine and its reactive metabolite in a concentration- and time-dependent manner.
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Affiliation(s)
- Aya Goto
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Akira Yoshimi
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Tomoko Nagai
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Mako Ukigai
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Akihiro Mouri
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Norio Ozaki
- Department of Psychiatry, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
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