1
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Zhou L, Tian M, Zhang B, Cao X, Huo X, Yang F, Cao P, Feng L, Ma X, Tian X. Lysosome targeting fluorescent probe for NAAA imaging and its applications in the drug development for anti-inflammatory. Int J Biol Macromol 2024; 263:130307. [PMID: 38382784 DOI: 10.1016/j.ijbiomac.2024.130307] [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: 07/18/2023] [Revised: 02/04/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024]
Abstract
N-acylethanolamine acid amidase (NAAA) is a nucleophilic lysosomal cysteine hydrolase, which primarily mediates the hydrolytic inactivation of endogenous palmitoylethanolamide (PEA), which further influences the inflammatory process by regulating peroxisome proliferator-activated receptor-α (PPAR-α). Herein, a novel lysosome (Lyso)-targeting fluorescent probe (i.e., PMBD) was designed and synthesized for detecting endogenous NAAA selectively and sensitively, allowing real-time visual monitoring of endogenous NAAA in living cells. Moreover, PMBD can target Lyso with a high colocalization in Lyso Tracker. Finally, a high-throughput assay method for NAAA inhibitor screening was established using PMBD, and the NAAA-inhibitory effects of 42 anti-inflammatory Traditional Chinese medicines were evaluated. A novel potent inhibitor of NAAA, ellagic acid, was isolated from Cornus officinalis, which can suppress LPS-induced iNOS upregulation and NO production in RAW264.7 cells that display anti-inflammatory activities. PMBD, a novel Lyso-targeting fluorescent probe for visually imaging NAAA, could serve as a useful molecular tool for exploring the physiological functions of NAAA and drug development based on NAAA-related diseases.
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Affiliation(s)
- Limin Zhou
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Manman Tian
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
| | - Baojing Zhang
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
| | - Xudong Cao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
| | - Fangyu Yang
- General Hospital of Northern Theater Command, Department of Neurosurgery, Shenyang, China
| | - Peng Cao
- General Hospital of Northern Theater Command, Department of Neurosurgery, Shenyang, China.
| | - Lei Feng
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China; School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
| | - Xiangge Tian
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China.
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2
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Sgroi S, Romeo E, Fruscia PD, Porceddu PF, Russo D, Realini N, Albanesi E, Bandiera T, Bertozzi F, Reggiani A. Inhibition of N-acylethanolamine-hydrolyzing acid amidase reduces T cell infiltration in a mouse model of multiple sclerosis. Pharmacol Res 2021; 172:105816. [PMID: 34391933 DOI: 10.1016/j.phrs.2021.105816] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/30/2021] [Accepted: 08/11/2021] [Indexed: 11/27/2022]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS), in which myeloid cells sustain inflammation, take part in priming, differentiation, and reactivation of myelin-specific T cells, and cause direct myelin damage. N-Acylethanolamine-hydrolyzing acid amidase (NAAA) is a proinflammatory enzyme induced by phlogosis and overexpressed in macrophages and microglia of EAE mice. Targeting these cell populations by inhibiting NAAA may be a promising pharmacological strategy to modulate the inflammatory aspect of MS and manage disease progression. To address this goal, we used ARN16186, a small molecule specifically designed and synthesized as a pharmacological tool to inhibit NAAA. We assessed whether enzyme inhibition affected the severity of neurological symptoms and modulated immune cell infiltration into the central nervous system of EAE mice. We found that preventive chronic treatment with ARN16186 was efficacious in slowing disease progression and preserving locomotor activity in EAE mice. Furthermore, NAAA inhibition reduced the number of immune cells infiltrating the spinal cord and modulated the overactivation of NF-kB and STAT3 transcription factors, leading to less expansion of Th17 cells over the course of the disease.
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Affiliation(s)
- Stefania Sgroi
- D3-Validation, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Elisa Romeo
- D3-Validation, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Paolo Di Fruscia
- D3-PharmaChemistry, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | | | - Debora Russo
- D3-PharmaChemistry, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Natalia Realini
- D3-Validation, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Ennio Albanesi
- Department of Neuroscience and Brain Technologies, Neurofacility, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Tiziano Bandiera
- D3-PharmaChemistry, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Fabio Bertozzi
- D3-PharmaChemistry, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy
| | - Angelo Reggiani
- D3-Validation, Fondazione Istituto Italiano di Tecnologia, Genoa 16163, Italy.
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3
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Di Fruscia P, Carbone A, Bottegoni G, Berti F, Giacomina F, Ponzano S, Pagliuca C, Fiasella A, Pizzirani D, Ortega JA, Nuzzi A, Tarozzo G, Mengatto L, Giampà R, Penna I, Russo D, Romeo E, Summa M, Bertorelli R, Armirotti A, Bertozzi SM, Reggiani A, Bandiera T, Bertozzi F. Discovery and SAR Evolution of Pyrazole Azabicyclo[3.2.1]octane Sulfonamides as a Novel Class of Non-Covalent N-Acylethanolamine-Hydrolyzing Acid Amidase (NAAA) Inhibitors for Oral Administration. J Med Chem 2021; 64:13327-13355. [PMID: 34469137 PMCID: PMC8474119 DOI: 10.1021/acs.jmedchem.1c00575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Indexed: 12/30/2022]
Abstract
Inhibition of intracellular N-acylethanolamine-hydrolyzing acid amidase (NAAA) activity is a promising approach to manage the inflammatory response under disabling conditions. In fact, NAAA inhibition preserves endogenous palmitoylethanolamide (PEA) from degradation, thus increasing and prolonging its anti-inflammatory and analgesic efficacy at the inflamed site. In the present work, we report the identification of a potent, systemically available, novel class of NAAA inhibitors, featuring a pyrazole azabicyclo[3.2.1]octane structural core. After an initial screening campaign, a careful structure-activity relationship study led to the discovery of endo-ethoxymethyl-pyrazinyloxy-8-azabicyclo[3.2.1]octane-pyrazole sulfonamide 50 (ARN19689), which was found to inhibit human NAAA in the low nanomolar range (IC50 = 0.042 μM) with a non-covalent mechanism of action. In light of its favorable biochemical, in vitro and in vivo drug-like profile, sulfonamide 50 could be regarded as a promising pharmacological tool to be further investigated in the field of inflammatory conditions.
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Affiliation(s)
- Paolo Di Fruscia
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Anna Carbone
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
- Department
of Biological, Chemical and Pharmaceutical Sciences and Technologies
(STEBICEF), University of Palermo, 90123Palermo, Italy
| | - Giovanni Bottegoni
- Computational
and Chemical Biology, Istituto Italiano
di Tecnologia (IIT), 16163Genova, Italy
| | - Francesco Berti
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Francesca Giacomina
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Stefano Ponzano
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Chiara Pagliuca
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Annalisa Fiasella
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Daniela Pizzirani
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Jose Antonio Ortega
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Andrea Nuzzi
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Glauco Tarozzo
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Luisa Mengatto
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Roberta Giampà
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Ilaria Penna
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Debora Russo
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Elisa Romeo
- D3-Validation, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Maria Summa
- Analytical
Chemistry and Translational Pharmacology, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Rosalia Bertorelli
- Analytical
Chemistry and Translational Pharmacology, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Andrea Armirotti
- Analytical
Chemistry and Translational Pharmacology, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Sine Mandrup Bertozzi
- Analytical
Chemistry and Translational Pharmacology, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Angelo Reggiani
- D3-Validation, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Tiziano Bandiera
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
| | - Fabio Bertozzi
- D3-PharmaChemistry, Istituto Italiano di Tecnologia (IIT), 16163Genova, Italy
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4
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Malamas MS, Pavlopoulos S, Alapafuja SO, Farah SI, Zvonok A, Mohammad KA, West J, Perry NT, Pelekoudas DN, Rajarshi G, Shields C, Chandrashekhar H, Wood J, Makriyannis A. Design and Structure-Activity Relationships of Isothiocyanates as Potent and Selective N-Acylethanolamine-Hydrolyzing Acid Amidase Inhibitors. J Med Chem 2021; 64:5956-5972. [PMID: 33900772 DOI: 10.1021/acs.jmedchem.1c00076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Acylethanolamines are signaling lipid molecules implicated in pathophysiological conditions associated with inflammation and pain. N-Acylethanolamine acid amidase (NAAA) favorably hydrolyzes lipid palmitoylethanolamide, which plays a key role in the regulation of inflammatory and pain processes. The synthesis and structure-activity relationship studies encompassing the isothiocyanate pharmacophore have produced potent low nanomolar inhibitors for hNAAA, while exhibiting high selectivity (>100-fold) against other serine hydrolases and cysteine peptidases. We have followed a target-based structure-activity relationship approach, supported by computational methods and known cocrystals of hNAAA. We have identified systemically active inhibitors with good plasma stability (t1/2 > 2 h) and microsomal stability (t1/2 ∼ 15-30 min) as pharmacological tools to investigate the role of NAAA in inflammation, pain, and drug addiction.
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Affiliation(s)
| | - Spiro Pavlopoulos
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Shakiru O Alapafuja
- MAK Scientific LLC, 151 South Bedford Street, Burlington, Massachusetts 01803, United States
| | - Shrouq I Farah
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Alexander Zvonok
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Khadijah A Mohammad
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Jay West
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Nicholas Thomas Perry
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Dimitrios N Pelekoudas
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Girija Rajarshi
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Christina Shields
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Honrao Chandrashekhar
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Jodi Wood
- Center for Drug Discovery, Northeastern University, Boston, Massachusetts 02115, United States
| | - Alexandros Makriyannis
- Center for Drug Discovery and Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts 02115, United States
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5
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Scalvini L, Ghidini A, Lodola A, Callegari D, Rivara S, Piomelli D, Mor M. N-Acylethanolamine Acid Amidase (NAAA): Mechanism of Palmitoylethanolamide Hydrolysis Revealed by Mechanistic Simulations. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02903] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Laura Scalvini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
| | - Andrea Ghidini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
| | - Alessio Lodola
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
| | - Donatella Callegari
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
| | - Silvia Rivara
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
| | - Daniele Piomelli
- Department of Anatomy and Neurobiology, University of California, Irvine, California 92697-4625, United States
- Department of Pharmaceutical Sciences, University of California, Irvine, California 92697-4625, United States
- Department of Biological Chemistry and Molecular Biology, University of California, Irvine, California 92697-4625, United States
| | - Marco Mor
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle scienze 27/A, I-43124 Parma, Italy
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6
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Piomelli D, Scalvini L, Fotio Y, Lodola A, Spadoni G, Tarzia G, Mor M. N-Acylethanolamine Acid Amidase (NAAA): Structure, Function, and Inhibition. J Med Chem 2020; 63:7475-7490. [PMID: 32191459 DOI: 10.1021/acs.jmedchem.0c00191] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
N-Acylethanolamine acid amidase (NAAA) is an N-terminal cysteine hydrolase primarily found in the endosomal-lysosomal compartment of innate and adaptive immune cells. NAAA catalyzes the hydrolytic deactivation of palmitoylethanolamide (PEA), a lipid-derived peroxisome proliferator-activated receptor-α (PPAR-α) agonist that exerts profound anti-inflammatory effects in animal models. Emerging evidence points to NAAA-regulated PEA signaling at PPAR-α as a critical control point for the induction and the resolution of inflammation and to NAAA itself as a target for anti-inflammatory medicines. The present Perspective discusses three key aspects of this hypothesis: the role of NAAA in controlling the signaling activity of PEA; the structural bases for NAAA function and inhibition by covalent and noncovalent agents; and finally, the potential value of NAAA-targeting drugs in the treatment of human inflammatory disorders.
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Affiliation(s)
- Daniele Piomelli
- Department of Anatomy and Neurobiology, University of California, Irvine, California 92697-4625, United States.,Department of Pharmaceutical Sciences, University of California, Irvine, California 92697-4625, United States.,Department of Biological Chemistry and Molecular Biology, University of California, Irvine, California 92697-4625, United States
| | - Laura Scalvini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze 27/A, I- 43124 Parma, Italy
| | - Yannick Fotio
- Department of Anatomy and Neurobiology, University of California, Irvine, California 92697-4625, United States
| | - Alessio Lodola
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze 27/A, I- 43124 Parma, Italy
| | - Gilberto Spadoni
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Giorgio Tarzia
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", Piazza Rinascimento 6, I-61029 Urbino, Italy
| | - Marco Mor
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze 27/A, I- 43124 Parma, Italy
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7
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Zhou P, Xiang L, Zhao D, Ren J, Qiu Y, Li Y. Synthesis, biological evaluation, and structure activity relationship (SAR) study of pyrrolidine amide derivatives as N-acylethanolamine acid amidase (NAAA) inhibitors. MEDCHEMCOMM 2018; 10:252-262. [PMID: 30931090 DOI: 10.1039/c8md00432c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/14/2018] [Indexed: 01/15/2023]
Abstract
N-Acylethanolamine acid amidase (NAAA) is one of the key enzymes involved in the degradation of fatty acid ethanolamides (FAEs), especially for palmitoylethanolamide (PEA). Pharmacological blockage of NAAA restores PEA levels, providing therapeutic benefits in the management of inflammation and pain. In the current work, we showed the structure-activity relationship (SAR) studies for pyrrolidine amide derivatives as NAAA inhibitors. A series of aromatic replacements or substituents for the terminal phenyl group of pyrrolidine amides were examined. SAR data showed that small lipophilic 3-phenyl substituents were preferable for optimal potency. The conformationally flexible linkers increased the inhibitory potency of pyrrolidine amide derivatives but reduced their selectivity toward fatty acid amide hydrolase (FAAH). The conformationally restricted linkers did not enhance the inhibitor potency toward NAAA but improved the selectivity over FAAH. Several low micromolar potent NAAA inhibitors were developed, including 4g bearing a rigid 4-phenylcinnamoyl group. Dialysis and kinetic analysis suggested that 4g inhibited NAAA via a competitive and reversible mechanism. Furthermore, 4g showed high anti-inflammatory activities in lipopolysaccharide (LPS) induced acute lung injury (ALI) model, and this effect was blocked by pre-treatment with the PPAR-α antagonist MK886. We anticipate that 4g (E93) will enable a new agent to treat inflammation and related diseases.
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Affiliation(s)
- Pan Zhou
- Eye Institute of Xiamen University , Xiamen , Fujian 361102 , China.,Medical College , Xiamen University , Xiamen , Fujian 361102 , China
| | - Lei Xiang
- Medical College , Xiamen University , Xiamen , Fujian 361102 , China
| | - Dongsheng Zhao
- Department of Pharmacy , Quanzhou Medical College , China . Tel: Quanzhou 362100
| | - Jie Ren
- Eye Institute of Xiamen University , Xiamen , Fujian 361102 , China.,Medical College , Xiamen University , Xiamen , Fujian 361102 , China
| | - Yan Qiu
- Eye Institute of Xiamen University , Xiamen , Fujian 361102 , China.,Medical College , Xiamen University , Xiamen , Fujian 361102 , China
| | - Yuhang Li
- Xiamen Institute of Rare-earth Materials , Haixi Institutes , Chinese Academy of Sciences , Fujian 361005 , China.,CAS Key Laboratory of Design and Assembly of Functional Nanostructures , and Fujian Provincial Key Laboratory of Nanomaterials , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , China .
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8
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Bottemanne P, Muccioli GG, Alhouayek M. N-acylethanolamine hydrolyzing acid amidase inhibition: tools and potential therapeutic opportunities. Drug Discov Today 2018; 23:1520-1529. [PMID: 29567427 DOI: 10.1016/j.drudis.2018.03.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/06/2018] [Accepted: 03/15/2018] [Indexed: 01/12/2023]
Abstract
N-acylethanolamines (NAEs) (e.g., N-palmitoylethanolamine, N-arachidonoylethanolamine, N-oleoylethanolamine) are bioactive lipids involved in many physiological processes including pain, inflammation, anxiety, cognition and food intake. Two enzymes are responsible for the hydrolysis of NAEs and therefore regulate their endogenous levels and effects: fatty acid amide hydrolase (FAAH) and N-acylethanolamine-hydrolyzing acid amidase (NAAA). As discussed here, extensive biochemical characterization of NAAA was carried out over the years that contributed to a better understanding of NAAA enzymology. An increasing number of studies describe the synthesis and pharmacological characterization of NAAA inhibitors. Recent medicinal chemistry efforts have led to the development of potent and stable inhibitors that enable studying the effects of NAAA inhibition in preclinical disease models, notably in the context of pain and inflammation.
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Affiliation(s)
- Pauline Bottemanne
- BPBL Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Av. E. Mounier 72, B1.72.01, B-1200 Bruxelles, Belgium
| | - Giulio G Muccioli
- BPBL Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Av. E. Mounier 72, B1.72.01, B-1200 Bruxelles, Belgium
| | - Mireille Alhouayek
- BPBL Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Av. E. Mounier 72, B1.72.01, B-1200 Bruxelles, Belgium.
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9
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Sasso O, Summa M, Armirotti A, Pontis S, De Mei C, Piomelli D. The N-Acylethanolamine Acid Amidase Inhibitor ARN077 Suppresses Inflammation and Pruritus in a Mouse Model of Allergic Dermatitis. J Invest Dermatol 2018; 138:562-569. [DOI: 10.1016/j.jid.2017.07.853] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/13/2017] [Accepted: 07/21/2017] [Indexed: 01/12/2023]
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10
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Li Y, Chen Q, Yang L, Li Y, Zhang Y, Qiu Y, Ren J, Lu C. Identification of highly potent N -acylethanolamine acid amidase (NAAA) inhibitors: Optimization of the terminal phenyl moiety of oxazolidone derivatives. Eur J Med Chem 2017; 139:214-221. [DOI: 10.1016/j.ejmech.2017.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/24/2017] [Accepted: 08/02/2017] [Indexed: 12/30/2022]
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11
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Petracca R, Ponzano S, Bertozzi S, Sasso O, Piomelli D, Bandiera T, Bertozzi F. Progress in the development of β-lactams as N-Acylethanolamine Acid Amidase (NAAA) inhibitors: Synthesis and SAR study of new, potent N-O-substituted derivatives. Eur J Med Chem 2017; 126:561-575. [DOI: 10.1016/j.ejmech.2016.11.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 10/20/2022]
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12
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Ren J, Li Y, Ke H, Li Y, Yang L, Yu H, Huang R, Lu C, Qiu Y. Design, synthesis, and biological evaluation of oxazolidone derivatives as highly potent N-acylethanolamine acid amidase (NAAA) inhibitors. RSC Adv 2017. [DOI: 10.1039/c6ra28734d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Preventing PEA degradation by inhibition of NAAA is a novel strategy for the treatment of inflammation and pain. We reported the discovery of oxazolidone derivative as highly potent NAAA inhibitors, including 2f, 3h, 3i and 3j.
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Affiliation(s)
- Jie Ren
- Medical College
- Xiamen University
- Xiamen
- P. R. China
| | - Yuhang Li
- Medical College
- Xiamen University
- Xiamen
- P. R. China
- Xiamen Institute of Rare-earth Materials
| | - Hongwei Ke
- College of Ocean and Earth Science
- Xiamen University
- Xiamen
- P. R. China
| | - Yanting Li
- Medical College
- Xiamen University
- Xiamen
- P. R. China
| | - Longhe Yang
- Engineering Research Center of Marine Biological Resource Comprehensive Utilization
- Third Institute of Oceanography
- State Oceanic Administration
- Xiamen 361005
- P. R. China
| | - Helin Yu
- Medical College
- Xiamen University
- Xiamen
- P. R. China
| | - Rui Huang
- Medical College
- Xiamen University
- Xiamen
- P. R. China
| | - Canzhong Lu
- Xiamen Institute of Rare-earth Materials
- Haixi Institutes
- Chinese Academy of Sciences
- P. R. China
| | - Yan Qiu
- Medical College
- Xiamen University
- Xiamen
- P. R. China
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13
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Romeo E, Pontis S, Ponzano S, Bonezzi F, Migliore M, Di Martino S, Summa M, Piomelli D. Preparation and In Vivo Use of an Activity-based Probe for N-acylethanolamine Acid Amidase. J Vis Exp 2016. [PMID: 27911411 DOI: 10.3791/54652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Activity-based protein profiling (ABPP) is a method for the identification of an enzyme of interest in a complex proteome through the use of a chemical probe that targets the enzyme's active sites. A reporter tag introduced into the probe allows for the detection of the labeled enzyme by in-gel fluorescence scanning, protein blot, fluorescence microscopy, or liquid chromatography-mass spectrometry. Here, we describe the preparation and use of the compound ARN14686, a click chemistry activity-based probe (CC-ABP) that selectively recognizes the enzyme N-acylethanolamine acid amidase (NAAA). NAAA is a cysteine hydrolase that promotes inflammation by deactivating endogenous peroxisome proliferator-activated receptor (PPAR)-alpha agonists such as palmitoylethanolamide (PEA) and oleoylethanolamide (OEA). NAAA is synthesized as an inactive full-length proenzyme, which is activated by autoproteolysis in the acidic pH of the lysosome. Localization studies have shown that NAAA is predominantly expressed in macrophages and other monocyte-derived cells, as well as in B-lymphocytes. We provide examples of how ARN14686 can be used to detect and quantify active NAAA ex vivo in rodent tissues by protein blot and fluorescence microscopy.
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Affiliation(s)
- Elisa Romeo
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | - Silvia Pontis
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | - Stefano Ponzano
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | - Fabiola Bonezzi
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | - Marco Migliore
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | | | - Maria Summa
- Drug Discovery and Development, Istituto Italiano di Tecnologia
| | - Daniele Piomelli
- Drug Discovery and Development, Istituto Italiano di Tecnologia; Departments of Anatomy and Neurobiology, Pharmacology, and Biological Chemistry, University of California, Irvine School of Medicine;
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14
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Tuo W, Leleu-Chavain N, Spencer J, Sansook S, Millet R, Chavatte P. Therapeutic Potential of Fatty Acid Amide Hydrolase, Monoacylglycerol Lipase, and N-Acylethanolamine Acid Amidase Inhibitors. J Med Chem 2016; 60:4-46. [DOI: 10.1021/acs.jmedchem.6b00538] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wei Tuo
- Université de Lille, Inserm, CHU Lille, U995,
LIRIC, Lille Inflammation Research International Center, F-59000 Lille, France
| | - Natascha Leleu-Chavain
- Université de Lille, Inserm, CHU Lille, U995,
LIRIC, Lille Inflammation Research International Center, F-59000 Lille, France
| | - John Spencer
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, U.K
| | - Supojjanee Sansook
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, U.K
| | - Régis Millet
- Université de Lille, Inserm, CHU Lille, U995,
LIRIC, Lille Inflammation Research International Center, F-59000 Lille, France
| | - Philippe Chavatte
- Université de Lille, Inserm, CHU Lille, U995,
LIRIC, Lille Inflammation Research International Center, F-59000 Lille, France
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15
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Migliore M, Pontis S, Fuentes de Arriba AL, Realini N, Torrente E, Armirotti A, Romeo E, Di Martino S, Russo D, Pizzirani D, Summa M, Lanfranco M, Ottonello G, Busquet P, Jung KM, Garcia-Guzman M, Heim R, Scarpelli R, Piomelli D. Second-Generation Non-Covalent NAAA Inhibitors are Protective in a Model of Multiple Sclerosis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marco Migliore
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Silvia Pontis
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Angel Luis Fuentes de Arriba
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Natalia Realini
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Esther Torrente
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Andrea Armirotti
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Elisa Romeo
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Simona Di Martino
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Debora Russo
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Daniela Pizzirani
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Maria Summa
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Massimiliano Lanfranco
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Giuliana Ottonello
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Perrine Busquet
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Kwang-Mook Jung
- Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry; University of California; Irvine CA 92697-4625 USA
| | - Miguel Garcia-Guzman
- Anteana Therapeutics; 11189 Sorrento Valley Road, Suite 104 San Diego CA 92121 USA
| | - Roger Heim
- Anteana Therapeutics; 11189 Sorrento Valley Road, Suite 104 San Diego CA 92121 USA
| | - Rita Scarpelli
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
| | - Daniele Piomelli
- Department of Drug Discovery and Development; Fondazione Istituto Italiano di Tecnologia; via Morego 30 16163 Genoa Italy
- Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry; University of California; Irvine CA 92697-4625 USA
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16
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Migliore M, Pontis S, Fuentes de Arriba AL, Realini N, Torrente E, Armirotti A, Romeo E, Di Martino S, Russo D, Pizzirani D, Summa M, Lanfranco M, Ottonello G, Busquet P, Jung KM, Garcia-Guzman M, Heim R, Scarpelli R, Piomelli D. Second-Generation Non-Covalent NAAA Inhibitors are Protective in a Model of Multiple Sclerosis. Angew Chem Int Ed Engl 2016; 55:11193-11197. [PMID: 27404798 DOI: 10.1002/anie.201603746] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/11/2016] [Indexed: 11/11/2022]
Abstract
Palmitoylethanolamide (PEA) and oleoylethanolamide (OEA) are endogenous lipid mediators that suppress inflammation. Their actions are terminated by the intracellular cysteine amidase, N-acylethanolamine acid amidase (NAAA). Even though NAAA may offer a new target for anti-inflammatory therapy, the lipid-like structures and reactive warheads of current NAAA inhibitors limit the use of these agents as oral drugs. A series of novel benzothiazole-piperazine derivatives that inhibit NAAA in a potent and selective manner by a non-covalent mechanism are described. A prototype member of this class (8) displays high oral bioavailability, access to the central nervous system (CNS), and strong activity in a mouse model of multiple sclerosis (MS). This compound exemplifies a second generation of non-covalent NAAA inhibitors that may be useful in the treatment of MS and other chronic CNS disorders.
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Affiliation(s)
- Marco Migliore
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Silvia Pontis
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Angel Luis Fuentes de Arriba
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Natalia Realini
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Esther Torrente
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Andrea Armirotti
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Elisa Romeo
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Simona Di Martino
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Debora Russo
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Daniela Pizzirani
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Maria Summa
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Massimiliano Lanfranco
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Giuliana Ottonello
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Perrine Busquet
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Kwang-Mook Jung
- Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, CA 92697-4625, USA
| | - Miguel Garcia-Guzman
- Anteana Therapeutics, 11189 Sorrento Valley Road, Suite 104, San Diego CA 92121, USA
| | - Roger Heim
- Anteana Therapeutics, 11189 Sorrento Valley Road, Suite 104, San Diego CA 92121, USA
| | - Rita Scarpelli
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy
| | - Daniele Piomelli
- Department of Drug Discovery and Development, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy.,Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, CA 92697-4625, USA
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17
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Nuzzi A, Fiasella A, Ortega JA, Pagliuca C, Ponzano S, Pizzirani D, Bertozzi SM, Ottonello G, Tarozzo G, Reggiani A, Bandiera T, Bertozzi F, Piomelli D. Potent α-amino-β-lactam carbamic acid ester as NAAA inhibitors. Synthesis and structure–activity relationship (SAR) studies. Eur J Med Chem 2016; 111:138-59. [DOI: 10.1016/j.ejmech.2016.01.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/18/2016] [Accepted: 01/24/2016] [Indexed: 12/23/2022]
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18
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A simple and accurate protocol for absolute polar metabolite quantification in cell cultures using quantitative nuclear magnetic resonance. Anal Biochem 2016; 501:26-34. [PMID: 26898303 DOI: 10.1016/j.ab.2016.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 02/02/2023]
Abstract
Absolute analyte quantification by nuclear magnetic resonance (NMR) spectroscopy is rarely pursued in metabolomics, even though this would allow researchers to compare results obtained using different techniques. Here we report on a new protocol that permits, after pH-controlled serum protein removal, the sensitive quantification (limit of detection [LOD] = 5-25 μM) of hydrophilic nutrients and metabolites in the extracellular medium of cells in cultures. The method does not require the use of databases and uses PULCON (pulse length-based concentration determination) quantitative NMR to obtain results that are significantly more accurate and reproducible than those obtained by CPMG (Carr-Purcell-Meiboom-Gill) sequence or post-processing filtering approaches. Three practical applications of the method highlight its flexibility under different cell culture conditions. We identified and quantified (i) metabolic differences between genetically engineered human cell lines, (ii) alterations in cellular metabolism induced by differentiation of mouse myoblasts into myotubes, and (iii) metabolic changes caused by activation of neurotransmitter receptors in mouse myoblasts. Thus, the new protocol offers an easily implementable, efficient, and versatile tool for the investigation of cellular metabolism and signal transduction.
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19
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Bonezzi FT, Sasso O, Pontis S, Realini N, Romeo E, Ponzano S, Nuzzi A, Fiasella A, Bertozzi F, Piomelli D. An Important Role for N-Acylethanolamine Acid Amidase in the Complete Freund's Adjuvant Rat Model of Arthritis. J Pharmacol Exp Ther 2016; 356:656-63. [PMID: 26769918 DOI: 10.1124/jpet.115.230516] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/12/2016] [Indexed: 12/30/2022] Open
Abstract
The endogenous lipid amides, palmitoylethanolamide (PEA) and oleoylethanolamide (OEA), exert marked antinociceptive and anti-inflammatory effects in animal models by engaging nuclear peroxisome proliferator-activated receptor-α. PEA and OEA are produced by macrophages and other host-defense cells and are deactivated by the cysteine amidase, N-acylethanolamine acid amidase (NAAA), which is highly expressed in macrophages and B-lymphocytes. In the present study, we examined whether a) NAAA might be involved in the inflammatory reaction triggered by injection of complete Freund's adjuvant (CFA) into the rat paw and b) administration of 4-cyclohexylbutyl-N-[(S)-2-oxoazetidin-3-yl]-carbamate (ARN726), a novel systemically active NAAA inhibitor, attenuates such reaction. Injection of CFA into the paw produced local edema and heat hyperalgesia, which were accompanied by decreased PEA and OEA content (assessed by liquid chromatography/mass spectrometry) and increased NAAA levels (assessed by Western blot and ex vivo enzyme activity measurements) in paw tissue. Administration of undec-10-ynyl-N-[(3S)-2-oxoazetidin-3-yl] carbamate (ARN14686), a NAAA-preferring activity-based probe, revealed that NAAA was catalytically active in CFA-treated paws. Administration of ARN726 reduced NAAA activity and restored PEA and OEA levels in inflamed tissues, and significantly decreased CFA-induced inflammatory symptoms, including pus production and myeloperoxidase activity. The results confirm the usefulness of ARN726 as a probe to investigate the functions of NAAA in health and disease and suggest that this enzyme may provide a new molecular target for the treatment of arthritis.
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Affiliation(s)
- F T Bonezzi
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - O Sasso
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - S Pontis
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - N Realini
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - E Romeo
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - S Ponzano
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - A Nuzzi
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - A Fiasella
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - F Bertozzi
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
| | - D Piomelli
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Genova, Italy (F.T.B., O.S., S.P., N.R., E.R., S.P., A.N., A.F., F.B., D.P.); and Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California (D.P.)
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20
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Pontis S, Ribeiro A, Sasso O, Piomelli D. Macrophage-derived lipid agonists of PPAR-αas intrinsic controllers of inflammation. Crit Rev Biochem Mol Biol 2015; 51:7-14. [DOI: 10.3109/10409238.2015.1092944] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Romeo E, Ponzano S, Armirotti A, Summa M, Bertozzi F, Garau G, Bandiera T, Piomelli D. Activity-Based Probe for N-Acylethanolamine Acid Amidase. ACS Chem Biol 2015; 10:2057-2064. [PMID: 26102511 DOI: 10.1021/acschembio.5b00197] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
N-Acylethanolamine acid amidase (NAAA) is a lysosomal cysteine hydrolase involved in the degradation of saturated and monounsaturated fatty acid ethanolamides (FAEs), a family of endogenous lipid signaling molecules that includes oleoylethanolamide (OEA) and palmitoylethanolamide (PEA). Among the reported NAAA inhibitors, α-amino-β-lactone (3-aminooxetan-2-one) derivatives have been shown to prevent FAE hydrolysis in innate-immune and neural cells and to reduce reactions to inflammatory stimuli. Recently, we disclosed two potent and selective NAAA inhibitors, the compounds ARN077 (5-phenylpentyl-N-[(2S,3R)-2-methyl-4-oxo-oxetan-3-yl]carbamate) and ARN726 (4-cyclohexylbutyl-N-[(S)-2-oxoazetidin-3-yl]carbamate). The former is active in vivo by topical administration in rodent models of hyperalgesia and allodynia, while the latter exerts systemic anti-inflammatory effects in mouse models of lung inflammation. In the present study, we designed and validated a derivative of ARN726 as the first activity-based protein profiling (ABPP) probe for the in vivo detection of NAAA. The newly synthesized molecule 1 is an effective in vitro and in vivo click-chemistry activity based probe (ABP), which is able to capture the catalytically active form of NAAA in Human Embryonic Kidney 293 (HEK293) cells overexpressing human NAAA as well as in rat lung tissue. Competitive ABPP with 1 confirmed that ARN726 and ARN077 inhibit NAAA in vitro and in vivo. Compound 1 is a useful new tool to identify activated NAAA both in vitro and in vivo and to investigate the physiological and pathological roles of this enzyme.
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Affiliation(s)
- Elisa Romeo
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Stefano Ponzano
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Andrea Armirotti
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Maria Summa
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Fabio Bertozzi
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Gianpiero Garau
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Tiziano Bandiera
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Daniele Piomelli
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
- Departments
of Anatomy and Neurobiology, Pharmacology, and Biological Chemistry, University of California, 3216 Gillespie Neuroscience Facility, Irvine, California 92697-4621, United States
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22
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Ribeiro A, Pontis S, Mengatto L, Armirotti A, Chiurchiù V, Capurro V, Fiasella A, Nuzzi A, Romeo E, Moreno-Sanz G, Maccarrone M, Reggiani A, Tarzia G, Mor M, Bertozzi F, Bandiera T, Piomelli D. A Potent Systemically Active N-Acylethanolamine Acid Amidase Inhibitor that Suppresses Inflammation and Human Macrophage Activation. ACS Chem Biol 2015; 10:1838-46. [PMID: 25874594 DOI: 10.1021/acschembio.5b00114] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Fatty acid ethanolamides such as palmitoylethanolamide (PEA) and oleoylethanolamide (OEA) are lipid-derived mediators that potently inhibit pain and inflammation by ligating type-α peroxisome proliferator-activated receptors (PPAR-α). These bioactive substances are preferentially degraded by the cysteine hydrolase, N-acylethanolamine acid amidase (NAAA), which is highly expressed in macrophages. Here, we describe a new class of β-lactam derivatives that are potent, selective, and systemically active inhibitors of intracellular NAAA activity. The prototype of this class deactivates NAAA by covalently binding the enzyme's catalytic cysteine and exerts profound anti-inflammatory effects in both mouse models and human macrophages. This agent may be used to probe the functions of NAAA in health and disease and as a starting point to discover better anti-inflammatory drugs.
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Affiliation(s)
- Alison Ribeiro
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Silvia Pontis
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Luisa Mengatto
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Andrea Armirotti
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Valerio Chiurchiù
- European
Center for Brain Research, Fondazione Santa Lucia, via del Fosso
di Fiorano 64/65, 00143 Rome, Italy
| | - Valeria Capurro
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Annalisa Fiasella
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Andrea Nuzzi
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Elisa Romeo
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Guillermo Moreno-Sanz
- Department
of Anatomy and Neurobiology, University of California, Irvine, California 92697-4625, United States
| | - Mauro Maccarrone
- Department
of Anatomy and Neurobiology, University of California, Irvine, California 92697-4625, United States
- Campus Bio-Medico University of Rome, via Alvaro del Portillo 21, 00128, Rome, Italy
| | - Angelo Reggiani
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Giorgio Tarzia
- Department
of Biomolecular Science, University of Urbino “Carlo Bo”, 61029 Urbino, Italy
| | - Marco Mor
- Pharmaceutical
Department, University of Parma, I-43100 Parma, Italy
| | - Fabio Bertozzi
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Tiziano Bandiera
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
| | - Daniele Piomelli
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, via Morego
30, 16163 Genoa, Italy
- Departments
of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine, California 92697, United States
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Ponzano S, Berteotti A, Petracca R, Vitale R, Mengatto L, Bandiera T, Cavalli A, Piomelli D, Bertozzi F, Bottegoni G. Synthesis, Biological Evaluation, and 3D QSAR Study of 2-Methyl-4-oxo-3-oxetanylcarbamic Acid Esters as N-Acylethanolamine Acid Amidase (NAAA) Inhibitors. J Med Chem 2014; 57:10101-11. [DOI: 10.1021/jm501455s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Stefano Ponzano
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Anna Berteotti
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Rita Petracca
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Romina Vitale
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Luisa Mengatto
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Tiziano Bandiera
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Andrea Cavalli
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
- Department
of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro
6, I-40126 Bologna, Italy
| | - Daniele Piomelli
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
- Department
of Anatomy and Neurobiology, Department of
Pharmacology, and Department of Biological
Chemistry, University of California—Irvine, Irvine, California 92697-4621, United States
| | - Fabio Bertozzi
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
| | - Giovanni Bottegoni
- Drug
Discovery and Development, Istituto Italiano di Tecnologia, Via Morego
30, I-16163 Genova, Italy
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Bandiera T, Ponzano S, Piomelli D. Advances in the discovery of N-acylethanolamine acid amidase inhibitors. Pharmacol Res 2014; 86:11-7. [PMID: 24798679 DOI: 10.1016/j.phrs.2014.04.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 04/23/2014] [Accepted: 04/24/2014] [Indexed: 10/25/2022]
Abstract
N-Acylethanolamine acid amidase (NAAA) is a cysteine amidase that hydrolyzes saturated or monounsaturated fatty acid ethanolamides, such as palmitoylethanolamide (PEA) and oleoylethanolamide (OEA). PEA has been shown to exert analgesic and anti-inflammatory effects by engaging peroxisome proliferator-activated receptor-α. Like other fatty acid ethanolamides, PEA is not stored in cells, but produced on demand from cell membrane precursors, and its actions are terminated by intracellular hydrolysis by either fatty acid amide hydrolase or NAAA. Endogenous levels of PEA and OEA have been shown to decrease during inflammation. Modulation of the tissue levels of PEA by inhibition of enzymes responsible for the breakdown of this lipid mediator may represent therefore a new therapeutic strategy for the treatment of pain and inflammation. While a large number of inhibitors of fatty acid amide hydrolase have been discovered, few compounds have been reported to inhibit NAAA activity. Here, we describe the most representative NAAA inhibitors and briefly highlight their pharmacological profile. A recent study has shown that a NAAA inhibitor attenuated heat hyperalgesia and mechanical allodynia caused by local inflammation or nerve damage in animal models of pain and inflammation. This finding encourages further exploration of the pharmacology of NAAA inhibitors.
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Affiliation(s)
- Tiziano Bandiera
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego 30, I-16163 Genova, Italy.
| | - Stefano Ponzano
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego 30, I-16163 Genova, Italy
| | - Daniele Piomelli
- Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego 30, I-16163 Genova, Italy; Departments of Anatomy and Neurobiology, Pharmacology and Biological Chemistry, University of California, Irvine 92697-4625, USA.
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25
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Rahman IAS, Tsuboi K, Uyama T, Ueda N. New players in the fatty acyl ethanolamide metabolism. Pharmacol Res 2014; 86:1-10. [PMID: 24747663 DOI: 10.1016/j.phrs.2014.04.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 12/13/2022]
Abstract
Fatty acyl ethanolamides represent a class of endogenous bioactive lipid molecules and are generally referred to as N-acylethanolamines (NAEs). NAEs include palmitoylethanolamide (anti-inflammatory and analgesic substance), oleoylethanolamide (anorexic substance), and anandamide (endocannabinoid). The endogenous levels of NAEs are mainly regulated by enzymes responsible for their biosynthesis and degradation. In mammalian tissues, the major biosynthetic pathway starts from glycerophospholipids and is composed of two enzyme reactions. The first step is N-acylation of ethanolamine phospholipids catalyzed by Ca(2+)-dependent N-acyltransferase and the second step is the release of NAEs from N-acylated ethanolamine phospholipids by N-acylphosphatidylethanolamine (NAPE)-hydrolyzing phospholipase D (NAPE-PLD). As for the degradation of NAEs, fatty acid amide hydrolase plays the central role. However, recent studies strongly suggest the involvement of other enzymes in the NAE metabolism. These enzymes include members of the HRAS-like suppressor family (also called phospholipase A/acyltransferase family), which were originally discovered as tumor suppressors but can function as Ca(2+)-independent NAPE-forming N-acyltransferases; multiple enzymes involved in the NAPE-PLD-independent multi-step pathways to generate NAE from NAPE, which came to light by the analysis of NAPE-PLD-deficient mice; and a lysosomal NAE-hydrolyzing acid amidase as a second NAE hydrolase. These newly recognized enzymes may become the targets for the development of new therapeutic drugs. Here, we focus on recent enzymological findings in this area.
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Affiliation(s)
- Iffat Ara Sonia Rahman
- Department of Biochemistry, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan
| | - Kazuhito Tsuboi
- Department of Biochemistry, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan
| | - Toru Uyama
- Department of Biochemistry, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan
| | - Natsuo Ueda
- Department of Biochemistry, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan.
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26
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Peripheral gating of pain signals by endogenous lipid mediators. Nat Neurosci 2014; 17:164-74. [PMID: 24473264 DOI: 10.1038/nn.3612] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 11/22/2013] [Indexed: 12/13/2022]
Abstract
Primary sensory afferents and their neighboring host-defense cells are a rich source of lipid-derived mediators that contribute to the sensation of pain caused by tissue damage and inflammation. But an increasing number of lipid molecules have been shown to act in an opposite way, to suppress the inflammatory process, restore homeostasis in damaged tissues and attenuate pain sensitivity by regulating neural pathways that transmit nociceptive signals from the periphery of the body to the CNS. Here we review the molecular and cellular mechanisms that contribute to the modulatory actions of lipid mediators in peripheral nociceptive signaling.
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Vitale R, Ottonello G, Petracca R, Bertozzi SM, Ponzano S, Armirotti A, Berteotti A, Dionisi M, Cavalli A, Piomelli D, Bandiera T, Bertozzi F. Synthesis, Structure-Activity, and Structure-Stability Relationships of 2-Substituted-N-(4-oxo-3-oxetanyl)N-Acylethanolamine Acid Amidase (NAAA) Inhibitors. ChemMedChem 2014; 9:323-36. [DOI: 10.1002/cmdc.201300416] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Indexed: 12/23/2022]
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28
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Lodola A, Rivara S, Mor M. Insights in the Mechanism of Action and Inhibition of N-Acylethanolamine Acid Amidase by Means of Computational Methods. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2014; 96:219-34. [DOI: 10.1016/bs.apcsb.2014.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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29
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Ponzano S, Bertozzi F, Mengatto L, Dionisi M, Armirotti A, Romeo E, Berteotti A, Fiorelli C, Tarozzo G, Reggiani A, Duranti A, Tarzia G, Mor M, Cavalli A, Piomelli D, Bandiera T. Synthesis and structure-activity relationship (SAR) of 2-methyl-4-oxo-3-oxetanylcarbamic acid esters, a class of potent N-acylethanolamine acid amidase (NAAA) inhibitors. J Med Chem 2013; 56:6917-34. [PMID: 23991897 DOI: 10.1021/jm400739u] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Acylethanolamine acid amidase (NAAA) is a lysosomal cysteine hydrolase involved in the degradation of saturated and monounsaturated fatty acid ethanolamides (FAEs), a family of endogenous lipid agonists of peroxisome proliferator-activated receptor-α, which include oleoylethanolamide (OEA) and palmitoylethanolamide (PEA). The β-lactone derivatives (S)-N-(2-oxo-3-oxetanyl)-3-phenylpropionamide (2) and (S)-N-(2-oxo-3-oxetanyl)-biphenyl-4-carboxamide (3) inhibit NAAA, prevent FAE hydrolysis in activated inflammatory cells, and reduce tissue reactions to pro-inflammatory stimuli. Recently, our group disclosed ARN077 (4), a potent NAAA inhibitor that is active in vivo by topical administration in rodent models of hyperalgesia and allodynia. In the present study, we investigated the structure-activity relationship (SAR) of threonine-derived β-lactone analogues of compound 4. The main results of this work were an enhancement of the inhibitory potency of β-lactone carbamate derivatives for NAAA and the identification of (4-phenylphenyl)-methyl-N-[(2S,3R)-2-methyl-4-oxo-oxetan-3-yl]carbamate (14q) as the first single-digit nanomolar inhibitor of intracellular NAAA activity (IC50 = 7 nM on both rat NAAA and human NAAA).
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Affiliation(s)
- Stefano Ponzano
- Drug Discovery and Development, Istituto Italiano di Tecnologia , Via Morego 30, I-16163 Genova, Italy
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30
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Ueda N, Tsuboi K, Uyama T. Metabolism of endocannabinoids and related N-acylethanolamines: canonical and alternative pathways. FEBS J 2013; 280:1874-94. [PMID: 23425575 DOI: 10.1111/febs.12152] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 01/14/2013] [Accepted: 01/23/2013] [Indexed: 12/31/2022]
Abstract
Endocannabinoids are endogenous ligands of the cannabinoid receptors CB1 and CB2. Two arachidonic acid derivatives, arachidonoylethanolamide (anandamide) and 2-arachidonoylglycerol, are considered to be physiologically important endocannabinoids. In the known metabolic pathway in mammals, anandamide and other bioactive N-acylethanolamines, such as palmitoylethanolamide and oleoylethanolamide, are biosynthesized from glycerophospholipids by a combination of Ca(2+)-dependent N-acyltransferase and N-acyl-phosphatidylethanolamine-hydrolyzing phospholipase D, and are degraded by fatty acid amide hydrolase. However, recent studies have shown the involvement of other enzymes and pathways, which include the members of the tumor suppressor HRASLS family (the phospholipase A/acyltransferase family) functioning as Ca(2+)-independent N-acyltransferases, N-acyl-phosphatidylethanolamine-hydrolyzing phospholipaseD-independent multistep pathways via N-acylated lysophospholipid, and N-acylethanolamine-hydrolyzing acid amidase, a lysosomal enzyme that preferentially hydrolyzes palmitoylethanolamide. Although their physiological significance is poorly understood, these new enzymes/pathways may serve as novel targets for the development of therapeutic drugs. For example, selective N-acylethanolamine-hydrolyzing acid amidase inhibitors are expected to be new anti-inflammatory and analgesic drugs. In this minireview, we focus on advances in the understanding of these enzymes/pathways. In addition, recent findings on 2-arachidonoylglycerol metabolism are described.
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Affiliation(s)
- Natsuo Ueda
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa, Japan.
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Peroxisome proliferator-activated receptor α mediates acute effects of palmitoylethanolamide on sensory neurons. J Neurosci 2012; 32:12735-43. [PMID: 22972997 DOI: 10.1523/jneurosci.0130-12.2012] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The amplitude of the depolarization-evoked Ca2+ transient is larger in dorsal root ganglion (DRG) neurons from tumor-bearing mice compared with that of neurons from naive mice, and the change is mimicked by coculturing DRG neurons with the fibrosarcoma cells used to generate the tumors (Khasabova et al., 2007). The effect of palmitoylethanolamide (PEA), a ligand for the peroxisome proliferator-activated receptor α (PPARα), was determined on the evoked-Ca2+ transient in the coculture condition. The level of PEA was reduced in DRG cells from tumor-bearing mice as well as those cocultured with fibrosarcoma cells. Pretreatment with PEA, a synthetic PPARα agonist (GW7647), or ARN077, an inhibitor of the enzyme that hydrolyzes PEA, acutely decreased the amplitude of the evoked Ca2+ transient in small DRG neurons cocultured with fibrosarcoma cells. The PPARα antagonist GW6471 blocked the effect of each. In contrast, the PPARα agonist was without effect in the control condition, but the antagonist increased the amplitude of the Ca2+ transient, suggesting that PPARα receptors are saturated by endogenous ligand under basal conditions. Effects of drugs on mechanical sensitivity in vivo paralleled their effects on DRG neurons in vitro. Local injection of ARN077 decreased mechanical hyperalgesia in tumor-bearing mice, and the effect was blocked by GW6471. These data support the conclusion that the activity of DRG neurons is rapidly modulated by PEA through a PPARα-dependent mechanism. Moreover, agents that increase the activity of PPARα may provide a therapeutic strategy to reduce tumor-evoked pain.
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Antinociceptive effects of the N-acylethanolamine acid amidase inhibitor ARN077 in rodent pain models. Pain 2012; 154:350-360. [PMID: 23218523 DOI: 10.1016/j.pain.2012.10.018] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 09/18/2012] [Accepted: 10/26/2012] [Indexed: 01/01/2023]
Abstract
Fatty acid ethanolamides (FAEs), which include palmitoylethanolamide (PEA) and oleoylethanolamide (OEA), are endogenous agonists of peroxisome proliferator-activated receptor-α (PPAR-α) and important regulators of the inflammatory response. They are degraded in macrophages by the lysosomal cysteine amidase, N-acylethanolamine acid amidase (NAAA). Previous studies have shown that pharmacological inhibition of NAAA activity suppresses macrophage activation in vitro and causes marked anti-inflammatory effects in vivo, which is suggestive of a role for NAAA in the control of inflammation. It is still unknown, however, whether NAAA-mediated FAE deactivation might regulate pain signaling. The present study examined the effects of ARN077, a potent and selective NAAA inhibitor recently disclosed by our group, in rodent models of hyperalgesia and allodynia caused by inflammation or nerve damage. Topical administration of ARN077 attenuated, in a dose-dependent manner, heat hyperalgesia and mechanical allodynia elicited in mice by carrageenan injection or sciatic nerve ligation. The antinociceptive effects of ARN077 were prevented by the selective PPAR-α antagonist GW6471 and did not occur in PPAR-α-deficient mice. Furthermore, topical ARN077 reversed the allodynia caused by ultraviolet B radiation in rats, and this effect was blocked by pretreatment with GW6471. Sciatic nerve ligation or application of the proinflammatory phorbol ester 12-O-tetradecanoylphorbol 13-acetate decreased FAE levels in sciatic nerve and skin tissue, respectively. ARN077 reversed these biochemical effects. The results identify ARN077 as a potent inhibitor of intracellular NAAA activity, which is active in vivo by topical administration. The findings further suggest that NAAA regulates peripheral pain initiation by interrupting endogenous FAE signaling at PPAR-α.
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Biochemical and mass spectrometric characterization of human N-acylethanolamine-hydrolyzing acid amidase inhibition. PLoS One 2012; 7:e43877. [PMID: 22952796 PMCID: PMC3432061 DOI: 10.1371/journal.pone.0043877] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 07/30/2012] [Indexed: 12/15/2022] Open
Abstract
The mechanism of inactivation of human enzyme N-acylethanolamine-hydrolyzing acid amidase (hNAAA), with selected inhibitors identified in a novel fluorescent based assay developed for characterization of both reversible and irreversible inhibitors, was investigated kinetically and using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). 1-Isothiocyanatopentadecane (AM9023) was found to be a potent, selective and reversible hNAAA inhibitor, while two others, 5-((biphenyl-4-yl)methyl)-N,N-dimethyl-2H-tetrazole-2-carboxamide (AM6701) and N-Benzyloxycarbonyl-L-serine β-lactone (N-Cbz-serine β-lactone), inhibited hNAAA in a covalent and irreversible manner. MS analysis of the hNAAA/covalent inhibitor complexes identified modification only of the N-terminal cysteine (Cys126) of the β-subunit, confirming a suggested mechanism of hNAAA inactivation by the β-lactone containing inhibitors. These experiments provide direct evidence of the key role of Cys126 in hNAAA inactivation by different classes of covalent inhibitors, confirming the essential role of cysteine for catalysis and inhibition in this cysteine N-terminal nucleophile hydrolase enzyme. They also provide a methodology for the rapid screening and characterization of large libraries of compounds as potential inhibitors of NAAA, and subsequent characterization or their mechanism through MALDI-TOF MS based bottom up-proteomics.
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