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Targeting phosphodiesterase 4 as a therapeutic strategy for cognitive improvement. Bioorg Chem 2022; 130:106278. [DOI: 10.1016/j.bioorg.2022.106278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/22/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
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Paes D, Schepers M, Rombaut B, van den Hove D, Vanmierlo T, Prickaerts J. The Molecular Biology of Phosphodiesterase 4 Enzymes as Pharmacological Targets: An Interplay of Isoforms, Conformational States, and Inhibitors. Pharmacol Rev 2021; 73:1016-1049. [PMID: 34233947 DOI: 10.1124/pharmrev.120.000273] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The phosphodiesterase 4 (PDE4) enzyme family plays a pivotal role in regulating levels of the second messenger cAMP. Consequently, PDE4 inhibitors have been investigated as a therapeutic strategy to enhance cAMP signaling in a broad range of diseases, including several types of cancers, as well as in various neurologic, dermatological, and inflammatory diseases. Despite their widespread therapeutic potential, the progression of PDE4 inhibitors into the clinic has been hampered because of their related relatively small therapeutic window, which increases the chance of producing adverse side effects. Interestingly, the PDE4 enzyme family consists of several subtypes and isoforms that can be modified post-translationally or can engage in specific protein-protein interactions to yield a variety of conformational states. Inhibition of specific PDE4 subtypes, isoforms, or conformational states may lead to more precise effects and hence improve the safety profile of PDE4 inhibition. In this review, we provide an overview of the variety of PDE4 isoforms and how their activity and inhibition is influenced by post-translational modifications and interactions with partner proteins. Furthermore, we describe the importance of screening potential PDE4 inhibitors in view of different PDE4 subtypes, isoforms, and conformational states rather than testing compounds directed toward a specific PDE4 catalytic domain. Lastly, potential mechanisms underlying PDE4-mediated adverse effects are outlined. In this review, we illustrate that PDE4 inhibitors retain their therapeutic potential in myriad diseases, but target identification should be more precise to establish selective inhibition of disease-affected PDE4 isoforms while avoiding isoforms involved in adverse effects. SIGNIFICANCE STATEMENT: Although the PDE4 enzyme family is a therapeutic target in an extensive range of disorders, clinical use of PDE4 inhibitors has been hindered because of the adverse side effects. This review elaborately shows that safer and more effective PDE4 targeting is possible by characterizing 1) which PDE4 subtypes and isoforms exist, 2) how PDE4 isoforms can adopt specific conformations upon post-translational modifications and protein-protein interactions, and 3) which PDE4 inhibitors can selectively bind specific PDE4 subtypes, isoforms, and/or conformations.
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Affiliation(s)
- Dean Paes
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
| | - Melissa Schepers
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
| | - Ben Rombaut
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
| | - Daniel van den Hove
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
| | - Tim Vanmierlo
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
| | - Jos Prickaerts
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, EURON, Maastricht University, Maastricht, The Netherlands (D.P, M.S., B.R., D.v.d.H., T.V., J.P.); Department of Neuroscience, Neuro-Immune Connect and Repair laboratory, Biomedical Research Institute, Hasselt University, Hasselt, Belgium (D.P., M.S., B.R., T.V.); and Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany (D.v.d.H.)
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Brullo C, Rapetti F, Abbate S, Prosdocimi T, Torretta A, Semrau M, Massa M, Alfei S, Storici P, Parisini E, Bruno O. Design, synthesis, biological evaluation and structural characterization of novel GEBR library PDE4D inhibitors. Eur J Med Chem 2021; 223:113638. [PMID: 34171658 DOI: 10.1016/j.ejmech.2021.113638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/30/2022]
Abstract
Memory and cognitive functions depend on the cerebral levels of cyclic adenosine monophosphate (cAMP), which are regulated by the phosphodiesterase 4 (PDE4) family of enzymes. Selected rolipram-related PDE4 inhibitors, members of the GEBR library, have been shown to increase hippocampal cAMP levels, providing pro-cognitive benefits with a safe pharmacological profile. In a recent SAR investigation involving a subset of GEBR library compounds, we have demonstrated that, depending on length and flexibility, ligands can either adopt a twisted, an extended or a protruding conformation, the latter allowing the ligand to form stabilizing contacts with the regulatory domain of the enzyme. Here, based on those findings, we describe further chemical modifications of the protruding subset of GEBR library inhibitors and their effects on ligand conformation and potency. In particular, we demonstrate that the insertion of a methyl group in the flexible linker region connecting the catechol portion and the basic end of the molecules enhances the ability of the ligand to interact with both the catalytic and the regulatory domains of the enzyme.
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Affiliation(s)
- Chiara Brullo
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, Viale Benedetto XV 3, 16132, Genova, Italy
| | - Federica Rapetti
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, Viale Benedetto XV 3, 16132, Genova, Italy
| | - Sara Abbate
- Center for Nano Science and Technology @ PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milano, Italy
| | - Tommaso Prosdocimi
- Center for Nano Science and Technology @ PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milano, Italy
| | - Archimede Torretta
- Center for Nano Science and Technology @ PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milano, Italy
| | - Marta Semrau
- Elettra Sincrotrone Trieste S.C.p.A., SS 14 - km 163,5 in AREA Science Park, 34149, Trieste, Italy
| | - Matteo Massa
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, Viale Benedetto XV 3, 16132, Genova, Italy
| | - Silvana Alfei
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, Viale Benedetto XV 3, 16132, Genova, Italy
| | - Paola Storici
- Elettra Sincrotrone Trieste S.C.p.A., SS 14 - km 163,5 in AREA Science Park, 34149, Trieste, Italy
| | - Emilio Parisini
- Center for Nano Science and Technology @ PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milano, Italy; Latvian Institute of Organic Synthesis, Aizkraukles 21, LV, 1006, Riga, Latvia.
| | - Olga Bruno
- Department of Pharmacy, School of Medical and Pharmaceutical Sciences, University of Genova, Viale Benedetto XV 3, 16132, Genova, Italy.
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Furlan V, Bren U. Insight into Inhibitory Mechanism of PDE4D by Dietary Polyphenols Using Molecular Dynamics Simulations and Free Energy Calculations. Biomolecules 2021; 11:biom11030479. [PMID: 33806914 PMCID: PMC8004924 DOI: 10.3390/biom11030479] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 12/11/2022] Open
Abstract
Phosphodiesterase 4 (PDE4), mainly present in immune, epithelial, and brain cells, represents a family of key enzymes for the degradation of cyclic adenosine monophosphate (cAMP), which modulates inflammatory response. In recent years, the inhibition of PDE4 has been proven to be an effective therapeutic strategy for the treatment of neurological disorders. PDE4D constitutes a high-interest therapeutic target primarily for the treatment of Alzheimer’s disease, as it is highly involved in neuroinflammation, learning ability, and memory dysfunctions. In the present study, a thorough computational investigation consisting of molecular docking, molecular dynamics (MD) simulations, and binding free energy calculations based on the linear response approximation (LRA) method was performed to study dietary polyphenols as potential PDE4D inhibitors. The obtained results revealed that curcumin, 6-gingerol, capsaicin, and resveratrol represent potential PDE4D inhibitors; however, the predicted binding free energies of 6-gingerol, capsaicin, and resveratrol were less negative than in the case of curcumin, which exhibited the highest inhibitory potency in comparison with a positive control rolipram. Our results also revealed that the electrostatic component through hydrogen bonding represents the main driving force for the binding and inhibitory activity of curcumin, 6-gingerol, and resveratrol, while the van der Waals component through shape complementarity plays the most important role in capsaicin’s inhibitory activity. All investigated compounds form hydrophobic interactions with residues Gln376 and Asn602 as well as hydrogen bonds with nearby residues Asp438, Met439, and Ser440. The binding mode of the studied natural compounds is consequently very similar; however, it significantly differs from the binding of known PDE4 inhibitors. The uncovered molecular inhibitory mechanisms of four investigated natural polyphenols, curcumin, 6-gingerol, capsaicin, and resveratrol, form the basis for the design of novel PDE4D inhibitors for the treatment of Alzheimer’s disease with a potentially wider therapeutic window and fewer adverse side effects.
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Affiliation(s)
- Veronika Furlan
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia;
| | - Urban Bren
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia;
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, SI-6000 Koper, Slovenia
- Correspondence: ; Tel.: +386-2-229-4421
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Nadur NF, de Azevedo LL, Caruso L, Graebin CS, Lacerda RB, Kümmerle AE. The long and winding road of designing phosphodiesterase inhibitors for the treatment of heart failure. Eur J Med Chem 2020; 212:113123. [PMID: 33412421 DOI: 10.1016/j.ejmech.2020.113123] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 12/14/2022]
Abstract
Cyclic nucleotide phosphodiesterases (PDEs) are a superfamily of enzymes known to play a critical role in the indirect regulation of several intracellular metabolism pathways through the selective hydrolysis of the phosphodiester bonds of specific second messenger substrates such as cAMP (3',5'-cyclic adenosine monophosphate) and cGMP (3',5'-cyclic guanosine monophosphate), influencing the hypertrophy, contractility, apoptosis and fibroses in the cardiovascular system. The expression and/or activity of multiple PDEs is altered during heart failure (HF), which leads to changes in levels of cyclic nucleotides and function of cardiac muscle. Within the cardiovascular system, PDEs 1-5, 8 and 9 are expressed and are interesting targets for the HF treatment. In this comprehensive review we will present a briefly description of the biochemical importance of each cardiovascular related PDE to the HF, and cover almost all the "long and winding road" of designing and discovering ligands, hits, lead compounds, clinical candidates and drugs as PDE inhibitors in the last decade.
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Affiliation(s)
- Nathalia Fonseca Nadur
- Laboratório de Diversidade Molecular e Química Medicinal (LaDMol-QM, Molecular Diversity and Medicinal Chemistry Laboratory), Chemistry Institute, Rural Federal University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil; Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil
| | - Luciana Luiz de Azevedo
- Laboratório de Diversidade Molecular e Química Medicinal (LaDMol-QM, Molecular Diversity and Medicinal Chemistry Laboratory), Chemistry Institute, Rural Federal University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil; Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil
| | - Lucas Caruso
- Laboratório de Diversidade Molecular e Química Medicinal (LaDMol-QM, Molecular Diversity and Medicinal Chemistry Laboratory), Chemistry Institute, Rural Federal University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil; Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil
| | - Cedric Stephan Graebin
- Laboratório de Diversidade Molecular e Química Medicinal (LaDMol-QM, Molecular Diversity and Medicinal Chemistry Laboratory), Chemistry Institute, Rural Federal University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil; Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil
| | - Renata Barbosa Lacerda
- Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil
| | - Arthur Eugen Kümmerle
- Laboratório de Diversidade Molecular e Química Medicinal (LaDMol-QM, Molecular Diversity and Medicinal Chemistry Laboratory), Chemistry Institute, Rural Federal University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil; Programa de Pós-Gradução em Química (PPGQ), Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-000, Brazil.
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Dominant-Negative Attenuation of cAMP-Selective Phosphodiesterase PDE4D Action Affects Learning and Behavior. Int J Mol Sci 2020; 21:ijms21165704. [PMID: 32784895 PMCID: PMC7460819 DOI: 10.3390/ijms21165704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/26/2020] [Accepted: 08/06/2020] [Indexed: 12/22/2022] Open
Abstract
PDE4 cyclic nucleotide phosphodiesterases reduce 3′, 5′ cAMP levels in the CNS and thereby regulate PKA activity and the phosphorylation of CREB, fundamental to depression, cognition, and learning and memory. The PDE4 isoform PDE4D5 interacts with the signaling proteins β-arrestin2 and RACK1, regulators of β2-adrenergic and other signal transduction pathways. Mutations in PDE4D in humans predispose to acrodysostosis, associated with cognitive and behavioral deficits. To target PDE4D5, we developed mice that express a PDE4D5-D556A dominant-negative transgene in the brain. Male transgenic mice demonstrated significant deficits in hippocampus-dependent spatial learning, as assayed in the Morris water maze. In contrast, associative learning, as assayed in a fear conditioning assay, appeared to be unaffected. Male transgenic mice showed augmented activity in prolonged (2 h) open field testing, while female transgenic mice showed reduced activity in the same assay. Transgenic mice showed no demonstrable abnormalities in prepulse inhibition. There was also no detectable difference in anxiety-like behavior, as measured in the elevated plus-maze. These data support the use of a dominant-negative approach to the study of PDE4D5 function in the CNS and specifically in learning and memory.
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Peng T, Qi B, He J, Ke H, Shi J. Advances in the Development of Phosphodiesterase-4 Inhibitors. J Med Chem 2020; 63:10594-10617. [PMID: 32255344 DOI: 10.1021/acs.jmedchem.9b02170] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cyclic nucleotide phosphodiesterase 4 (PDE4) specifically hydrolyzes cyclic adenosine monophosphate (cAMP) and plays vital roles in biological processes such as cancer development. To date, PDE4 inhibitors have been widely studied as therapeutics for the treatment of various diseases such as chronic obstructive pulmonary disease, and many of them have progressed to clinical trials or have been approved as drugs. Herein, we review the advances in the development of PDE4 inhibitors in the past decade and will focus on their pharmacophores, PDE4 subfamily selectivity, and therapeutic potential. Hopefully, this analysis will lead to a strategy for development of novel therapeutics targeting PDE4.
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Affiliation(s)
- Ting Peng
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Baowen Qi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jun He
- Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Sichuan 610041, China
| | - Hengming Ke
- Department of Biochemistry and Biophysics, and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu 610072, China
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Cavalloro V, Russo K, Vasile F, Pignataro L, Torretta A, Donini S, Semrau MS, Storici P, Rossi D, Rapetti F, Brullo C, Parisini E, Bruno O, Collina S. Insight into GEBR-32a: Chiral Resolution, Absolute Configuration and Enantiopreference in PDE4D Inhibition. Molecules 2020; 25:E935. [PMID: 32093112 PMCID: PMC7070305 DOI: 10.3390/molecules25040935] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/12/2020] [Accepted: 02/16/2020] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease is the most common type of dementia, affecting millions of people worldwide. One of its main consequences is memory loss, which is related to downstream effectors of cyclic adenosine monophosphate (cAMP). A well-established strategy to avoid cAMP degradation is the inhibition of phosphodiesterase (PDE). In recent years, GEBR-32a has been shown to possess selective inhibitory properties against PDE type 4 family members, resulting in an improvement in spatial memory processes without the typical side effects that are usually correlated with this mechanism of action. In this work, we performed the HPLC chiral resolution and absolute configuration assignment of GEBR-32a. We developed an efficient analytical and semipreparative chromatographic method exploiting an amylose-based stationary phase, we studied the chiroptical properties of both enantiomers and we assigned their absolute configuration by 1H-NMR (nuclear magnetic resonance). Lastly, we measured the IC50 values of both enantiomers against both the PDE4D catalytic domain and the long PDE4D3 isoform. Results strongly support the notion that GEBR-32a inhibits the PDE4D enzyme by interacting with both the catalytic pocket and the regulatory domains.
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Affiliation(s)
- Valeria Cavalloro
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
- Department of Earth and Environmental Sciences, University of Pavia, 27100 Pavia, Italy
| | - Katia Russo
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Francesca Vasile
- Università degli Studi di Milano, Dipartimento di Chimica, via C. Golgi 19, 20133 Milano, Italy
| | - Luca Pignataro
- Università degli Studi di Milano, Dipartimento di Chimica, via C. Golgi 19, 20133 Milano, Italy
| | - Archimede Torretta
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Stefano Donini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Marta S Semrau
- Elettra-Sincrotrone Trieste S.C.p.A., SS 14-km 163.5 in AREA Science Park, 34149 Trieste, Italy
| | - Paola Storici
- Elettra-Sincrotrone Trieste S.C.p.A., SS 14-km 163.5 in AREA Science Park, 34149 Trieste, Italy
| | - Daniela Rossi
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Federica Rapetti
- Department of Pharmacy, Section of Medicinal Chemistry, School of Medical and Pharmaceutical Sciences, University of Genoa, 16132 Genoa, Italy
| | - Chiara Brullo
- Department of Pharmacy, Section of Medicinal Chemistry, School of Medical and Pharmaceutical Sciences, University of Genoa, 16132 Genoa, Italy
| | - Emilio Parisini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV-1006, Latvia
| | - Olga Bruno
- Department of Pharmacy, Section of Medicinal Chemistry, School of Medical and Pharmaceutical Sciences, University of Genoa, 16132 Genoa, Italy
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
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Blokland A, Heckman P, Vanmierlo T, Schreiber R, Paes D, Prickaerts J. Phosphodiesterase Type 4 Inhibition in CNS Diseases. Trends Pharmacol Sci 2019; 40:971-985. [DOI: 10.1016/j.tips.2019.10.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/15/2019] [Accepted: 10/17/2019] [Indexed: 12/17/2022]
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