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A Functional riboSNitch in the 3' Untranslated Region of FKBP5 Alters MicroRNA-320a Binding Efficiency and Mediates Vulnerability to Chronic Post-Traumatic Pain. J Neurosci 2018; 38:8407-8420. [PMID: 30150364 DOI: 10.1523/jneurosci.3458-17.2018] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 01/30/2023] Open
Abstract
Previous studies have shown that common variants of the gene coding for FK506-binding protein 51 (FKBP5), a critical regulator of glucocorticoid sensitivity, affect vulnerability to stress-related disorders. In a previous report, FKBP5 rs1360780 was identified as a functional variant because of its effect on gene methylation. Here we report evidence for a novel functional FKBP5 allele, rs3800373. This study assessed the association between rs3800373 and post-traumatic chronic pain in 1607 women and men from two ethnically diverse human cohorts. The molecular mechanism through which rs3800373 affects adverse outcomes was established via in silico, in vivo, and in vitro analyses. The rs3800373 minor allele predicted worse adverse outcomes after trauma exposure, such that individuals with the minor (risk) allele developed more severe post-traumatic chronic musculoskeletal pain. Among these individuals, peritraumatic circulating FKBP5 expression levels increased as cortisol and glucocorticoid receptor (NR3C1) mRNA levels increased, consistent with increased glucocorticoid resistance. Bioinformatic, in vitro, and mutational analyses indicate that the rs3800373 minor allele reduces the binding of a stress- and pain-associated microRNA, miR-320a, to FKBP5 via altering the FKBP5 mRNA 3'UTR secondary structure (i.e., is a riboSNitch). This results in relatively greater FKBP5 translation, unchecked by miR-320a. Overall, these results identify an important gene-miRNA interaction influencing chronic pain risk in vulnerable individuals and suggest that exogenous methods to achieve targeted reduction in poststress FKBP5 mRNA expression may constitute useful therapeutic strategies.SIGNIFICANCE STATEMENT FKBP5 is a critical regulator of the stress response. Previous studies have shown that dysregulation of the expression of this gene plays a role in the pathogenesis of chronic pain development as well as a number of comorbid neuropsychiatric disorders. In the current study, we identified a functional allele (rs3800373) in the 3'UTR of FKBP5 that influences vulnerability to chronic post-traumatic pain in two ethnic cohorts. Using multiple complementary experimental approaches, we show that the FKBP5 rs3800373 minor allele alters the secondary structure of FKBP5 mRNA, decreasing the binding of a stress- and pain-associated microRNA, miR-320a. This results in relatively greater FKBP5 translation, unchecked by miR-320a, increasing glucocorticoid resistance and increasing vulnerability to post-traumatic pain.
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Maiarù M, Leese C, Certo M, Echeverria-Altuna I, Mangione AS, Arsenault J, Davletov B, Hunt SP. Selective neuronal silencing using synthetic botulinum molecules alleviates chronic pain in mice. Sci Transl Med 2018; 10:10/450/eaar7384. [DOI: 10.1126/scitranslmed.aar7384] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/20/2018] [Accepted: 06/28/2018] [Indexed: 12/16/2022]
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Nissen NI, Anderson KR, Wang H, Lee HS, Garrison C, Eichelberger SA, Ackerman K, Im W, Miwa JM. Augmenting the antinociceptive effects of nicotinic acetylcholine receptor activity through lynx1 modulation. PLoS One 2018; 13:e0199643. [PMID: 29969495 PMCID: PMC6029753 DOI: 10.1371/journal.pone.0199643] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022] Open
Abstract
Neuronal nicotinic acetylcholine receptors (nAChRs) of the cholinergic system have been linked to antinociception, and therefore could be an alternative target for pain alleviation. nAChR activity has been shown to be regulated by the nicotinic modulator, lynx1, which forms stable complexes with nAChRs and has a negative allosteric action on their function. The objective in this study was to investigate the contribution of lynx1 to nicotine-mediated antinociception. Lynx1 contribution was investigated by mRNA expression analysis and electrophysiological responses to nicotine in the dorsal raphe nucleus (DRN), a part of the pain signaling pathway. In vivo antinociception was investigated in a test of nociception, the hot-plate analgesia assay with behavioral pharmacology. Lynx1/α4β2 nAChR interactions were investigated using molecular dynamics computational modeling. Nicotine evoked responses in serotonergic and GABAergic neurons in the DRN are augmented in slices lacking lynx1 (lynx1KO). The antinociceptive effect of nicotine and epibatidine is enhanced in lynx1KO mice and blocked by mecamylamine and DHβE. Computer simulations predict preferential binding affinity of lynx1 to the α:α interface that exists in the stoichiometry of the low sensitivity (α4)3(β2)2 nAChRs. Taken together, these data point to a role of lynx1 in mediating pain signaling in the DRN through preferential affinity to the low sensitivity α4β2 nAChRs. This study suggests that lynx1 is a possible alternative avenue for nociceptive modulation outside of opioid-based strategies.
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Affiliation(s)
- Neel I. Nissen
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Kristin R. Anderson
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | - Huaixing Wang
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | - Hui Sun Lee
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | - Carly Garrison
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | | | - Kasarah Ackerman
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | - Wonpil Im
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
| | - Julie M. Miwa
- Department of Biological Science, Lehigh University, Bethlehem, PA, United States of America
- * E-mail:
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Matosin N, Halldorsdottir T, Binder EB. Understanding the Molecular Mechanisms Underpinning Gene by Environment Interactions in Psychiatric Disorders: The FKBP5 Model. Biol Psychiatry 2018; 83:821-830. [PMID: 29573791 DOI: 10.1016/j.biopsych.2018.01.021] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 01/18/2018] [Accepted: 01/22/2018] [Indexed: 12/21/2022]
Abstract
Epidemiologic and genetic studies suggest common environmental and genetic risk factors for a number of psychiatric disorders, including depression, bipolar disorder, and schizophrenia. Genetic and environmental factors, especially adverse life events, not only have main effects on disease development but also may interact to shape risk and resilience. Such gene by adversity interactions have been described for FKBP5, an endogenous regulator of the stress-neuroendocrine system, conferring risk for a number of psychiatric disorders. In this review, we present a molecular and cellular model of the consequences of FKBP5 by early adversity interactions. We illustrate how altered genetic and epigenetic regulation of FKBP5 may contribute to disease risk by covering evidence from clinical and preclinical studies of FKBP5 dysregulation, known cell-type and tissue-type expression patterns of FKBP5 in humans and animals, and the role of FKBP5 as a stress-responsive molecular hub modulating many cellular pathways. FKBP5 presents the possibility to better understand the molecular and cellular factors contributing to a disease-relevant gene by environment interaction, with implications for the development of biomarkers and interventions for psychiatric disorders.
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Affiliation(s)
- Natalie Matosin
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany; School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Thorhildur Halldorsdottir
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Elisabeth B Binder
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany; Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia.
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55
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Pomplun S, Sippel C, Hähle A, Tay D, Shima K, Klages A, Ünal CM, Rieß B, Toh HT, Hansen G, Yoon HS, Bracher A, Preiser P, Rupp J, Steinert M, Hausch F. Chemogenomic Profiling of Human and Microbial FK506-Binding Proteins. J Med Chem 2018; 61:3660-3673. [PMID: 29578710 DOI: 10.1021/acs.jmedchem.8b00137] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
FK506-binding proteins (FKBPs) are evolutionarily conserved proteins that display peptidyl-prolyl isomerase activities and act as coreceptors for immunosuppressants. Microbial macrophage-infectivity-potentiator (Mip)-type FKBPs can enhance infectivity. However, developing druglike ligands for FKBPs or Mips has proven difficult, and many FKBPs and Mips still lack biologically useful ligands. To explore the scope and potential of C5-substituted [4.3.1]-aza-bicyclic sulfonamides as a broadly applicable class of FKBP inhibitors, we developed a new synthesis method for the bicyclic core scaffold and used it to prepare an FKBP- and Mip-focused library. This allowed us to perform a systematic structure-activity-relationship analysis across key human FKBPs and microbial Mips, yielding highly improved inhibitors for all the FKBPs studied. A cocrystal structure confirmed the molecular-binding mode of the core structure and explained the affinity gained as a result of the preferred substituents. The best FKBP and Mip ligands showed promising antimalarial, antileginonellal, and antichlamydial properties in cellular models of infectivity, suggesting that substituted [4.3.1]-aza-bicyclic sulfonamides could be a novel class of anti-infectives.
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Affiliation(s)
- Sebastian Pomplun
- Department of Translational Research in Psychiatry , Max Planck Institute of Psychiatry , 80804 Munich , Germany
| | - Claudia Sippel
- Department of Translational Research in Psychiatry , Max Planck Institute of Psychiatry , 80804 Munich , Germany
| | - Andreas Hähle
- Department of Translational Research in Psychiatry , Max Planck Institute of Psychiatry , 80804 Munich , Germany.,Technical University Darmstadt , Alarich-Weiss-Straße 4 , 64287 Darmstadt , Germany
| | - Donald Tay
- School of Biological Sciences , Nanyang Technological University , 639798 Singapore
| | - Kensuke Shima
- Department of Infectious Diseases and Microbiology , University of Lübeck , 23562 Lübeck , Germany
| | - Alina Klages
- Technische Universität Braunschweig , 38106 Braunschweig , Germany
| | - Can Murat Ünal
- Technische Universität Braunschweig , 38106 Braunschweig , Germany
| | - Benedikt Rieß
- Department of Translational Research in Psychiatry , Max Planck Institute of Psychiatry , 80804 Munich , Germany
| | - Hui Ting Toh
- School of Biological Sciences , Nanyang Technological University , 639798 Singapore
| | | | - Ho Sup Yoon
- School of Biological Sciences , Nanyang Technological University , 639798 Singapore
| | - Andreas Bracher
- Max Planck Institute of Biochemistry , 82152 Martinsried , Germany
| | - Peter Preiser
- School of Biological Sciences , Nanyang Technological University , 639798 Singapore
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology , University of Lübeck , 23562 Lübeck , Germany
| | - Michael Steinert
- Department of Infectious Diseases and Microbiology , University of Lübeck , 23562 Lübeck , Germany.,Helmholtz Centre for Infection Research , 38124 Braunschweig , Germany
| | - Felix Hausch
- Department of Translational Research in Psychiatry , Max Planck Institute of Psychiatry , 80804 Munich , Germany.,Technical University Darmstadt , Alarich-Weiss-Straße 4 , 64287 Darmstadt , Germany
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56
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Jokinen V, Sidorova Y, Viisanen H, Suleymanova I, Tiilikainen H, Li Z, Lilius TO, Mätlik K, Anttila JE, Airavaara M, Tian L, Rauhala PV, Kalso EA. Differential Spinal and Supraspinal Activation of Glia in a Rat Model of Morphine Tolerance. Neuroscience 2018; 375:10-24. [DOI: 10.1016/j.neuroscience.2018.01.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 01/10/2018] [Accepted: 01/23/2018] [Indexed: 12/20/2022]
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57
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Cox MB, Johnson JL. Evidence for Hsp90 Co-chaperones in Regulating Hsp90 Function and Promoting Client Protein Folding. Methods Mol Biol 2018; 1709:397-422. [PMID: 29177674 DOI: 10.1007/978-1-4939-7477-1_28] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Molecular chaperones are a diverse group of highly conserved proteins that transiently interact with partially folded polypeptide chains during normal cellular processes such as protein translation, translocation, and disassembly of protein complexes. Prior to folding or after denaturation, hydrophobic residues that are normally sequestered within a folded protein are exposed to the aqueous environment and are prone to aggregation or misfolding. Multiple classes of molecular chaperones, such as Hsp70s and Hsp40s, recognize and transiently bind polypeptides with exposed hydrophobic stretches in order to prevent misfolding. Other types of chaperones, such as Hsp90, have more specialized functions in that they appear to interact with only a subset of cellular proteins. This chapter focuses on the role of Hsp90 and partner co-chaperones in promoting the folding and activation of a diverse group of proteins with critical roles in cellular signaling and function.
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Affiliation(s)
- Marc B Cox
- Department of Biological Sciences, University of Texas at El Paso and the Border Biomedical Research Center, El Paso, TX, 79968, USA
| | - Jill L Johnson
- Department of Biological Sciences and the Center for Reproductive Biology, University of Idaho, Moscow, ID, 83844-3051, USA.
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58
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Fries GR, Gassen NC, Rein T. The FKBP51 Glucocorticoid Receptor Co-Chaperone: Regulation, Function, and Implications in Health and Disease. Int J Mol Sci 2017; 18:ijms18122614. [PMID: 29206196 PMCID: PMC5751217 DOI: 10.3390/ijms18122614] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/21/2017] [Accepted: 11/29/2017] [Indexed: 12/27/2022] Open
Abstract
Among the chaperones and co-chaperones regulating the glucocorticoid receptor (GR), FK506 binding protein (FKBP) 51 is the most intensely investigated across different disciplines. This review provides an update on the role of the different co-chaperones of Hsp70 and Hsp90 in the regulation of GR function. The development leading to the focus on FKBP51 is outlined. Further, a survey of the vast literature on the mechanism and function of FKBP51 is provided. This includes its structure and biochemical function, its regulation on different levels—transcription, post-transcription, and post-translation—and its function in signaling pathways. The evidence portraying FKBP51 as a scaffolding protein organizing protein complexes rather than a chaperone contributing to the folding of individual proteins is collated. Finally, FKBP51’s involvement in physiology and disease is outlined, and the promising efforts in developing drugs targeting FKBP51 are discussed.
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Affiliation(s)
- Gabriel R Fries
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA.
| | - Nils C Gassen
- Department of Translational Science in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany.
| | - Theo Rein
- Department of Translational Science in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany.
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59
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Balsevich G, Häusl AS, Meyer CW, Karamihalev S, Feng X, Pöhlmann ML, Dournes C, Uribe-Marino A, Santarelli S, Labermaier C, Hafner K, Mao T, Breitsamer M, Theodoropoulou M, Namendorf C, Uhr M, Paez-Pereda M, Winter G, Hausch F, Chen A, Tschöp MH, Rein T, Gassen NC, Schmidt MV. Stress-responsive FKBP51 regulates AKT2-AS160 signaling and metabolic function. Nat Commun 2017; 8:1725. [PMID: 29170369 PMCID: PMC5700978 DOI: 10.1038/s41467-017-01783-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 10/12/2017] [Indexed: 01/30/2023] Open
Abstract
The co-chaperone FKBP5 is a stress-responsive protein-regulating stress reactivity, and its genetic variants are associated with T2D related traits and other stress-related disorders. Here we show that FKBP51 plays a role in energy and glucose homeostasis. Fkbp5 knockout (51KO) mice are protected from high-fat diet-induced weight gain, show improved glucose tolerance and increased insulin signaling in skeletal muscle. Chronic treatment with a novel FKBP51 antagonist, SAFit2, recapitulates the effects of FKBP51 deletion on both body weight regulation and glucose tolerance. Using shorter SAFit2 treatment, we show that glucose tolerance improvement precedes the reduction in body weight. Mechanistically, we identify a novel association between FKBP51 and AS160, a substrate of AKT2 that is involved in glucose uptake. FKBP51 antagonism increases the phosphorylation of AS160, increases glucose transporter 4 expression at the plasma membrane, and ultimately enhances glucose uptake in skeletal myotubes. We propose FKBP51 as a mediator between stress and T2D development, and potential target for therapeutic approaches.
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Affiliation(s)
- Georgia Balsevich
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Alexander S Häusl
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Carola W Meyer
- Institute of Diabetes and Obesity, Helmholtz Zentrum München, Parkring 13, 85748, Garching, Germany
| | - Stoyo Karamihalev
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Xixi Feng
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Max L Pöhlmann
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Carine Dournes
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Andres Uribe-Marino
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Sara Santarelli
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Christiana Labermaier
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Kathrin Hafner
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Tianqi Mao
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | | | - Marily Theodoropoulou
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Christian Namendorf
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Manfred Uhr
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Marcelo Paez-Pereda
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Gerhard Winter
- Ludwig Maximilians University, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Felix Hausch
- Technical University Darmstadt, Institute of Organic Chemistry and Biochemistry, Alarich-Weiss-Str. 4, 64287, Darmstadt, Germany
| | - Alon Chen
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Matthias H Tschöp
- Institute of Diabetes and Obesity, Helmholtz Zentrum München, Parkring 13, 85748, Garching, Germany
| | - Theo Rein
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Nils C Gassen
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany
| | - Mathias V Schmidt
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Kraepelinstraße 2-10, 80804, Munich, Germany.
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Combined x-ray crystallography and computational modeling approach to investigate the Hsp90 C-terminal peptide binding to FKBP51. Sci Rep 2017; 7:14288. [PMID: 29079741 PMCID: PMC5660230 DOI: 10.1038/s41598-017-14731-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/16/2017] [Indexed: 01/13/2023] Open
Abstract
FK506 binding protein of 51 kDa (FKBP51) is a heat shock protein 90 (Hsp90) co-chaperone involved in the regulation of steroid hormone receptors activity. It is known for its role in various regulatory pathways implicated in mood and stress-related disorders, cancer, obesity, Alzheimer’s disease and corticosteroid resistant asthma. It consists of two FKBP12 like active peptidyl prolyl isomerase (PPIase) domains (an active FK1 and inactive FK2 domain) and one tetratricopeptide repeat (TPR) domain that mediates interaction with Hsp90 via its C-terminal MEEVD peptide. Here, we report a combined x-ray crystallography and molecular dynamics study to reveal the binding mechanism of Hsp90 MEEVD peptide to the TPR domain of FKBP51. The results demonstrated that the Hsp90 C-terminal peptide binds to the TPR domain of FKBP51 with the help of di-carboxylate clamp involving Lys272, Glu273, Lys352, Asn322, and Lys329 which are conserved throughout several di-carboxylate clamp TPR proteins. Interestingly, the results from molecular dynamics study are also in agreement to the complex structure where all the contacts between these two partners were consistent throughout the simulation period. In a nutshell, our findings provide new opportunity to engage this important protein-protein interaction target by small molecules designed by structure based drug design strategy.
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61
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Bonner JM, Boulianne GL. Diverse structures, functions and uses of FK506 binding proteins. Cell Signal 2017; 38:97-105. [DOI: 10.1016/j.cellsig.2017.06.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/15/2017] [Accepted: 06/20/2017] [Indexed: 02/08/2023]
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62
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Galat A. Peptidylprolyl Isomerases as In Vivo Carriers for Drugs That Target Various Intracellular Entities. Biomolecules 2017; 7:biom7040072. [PMID: 28961224 PMCID: PMC5745455 DOI: 10.3390/biom7040072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/20/2017] [Accepted: 09/26/2017] [Indexed: 01/15/2023] Open
Abstract
Analyses of sequences and structures of the cyclosporine A (CsA)-binding proteins (cyclophilins) and the immunosuppressive macrolide FK506-binding proteins (FKBPs) have revealed that they exhibit peculiar spatial distributions of charges, their overall hydrophobicity indexes vary within a considerable level whereas their points isoelectric (pIs) are contained from 4 to 11. These two families of peptidylprolyl cis/trans isomerases (PPIases) have several distinct functional attributes such as: (1) high affinity binding to some pharmacologically-useful hydrophobic macrocyclic drugs; (2) diversified binding epitopes to proteins that may induce transient manifolds with altered flexibility and functional fitness; and (3) electrostatic interactions between positively charged segments of PPIases and negatively charged intracellular entities that support their spatial integration. These three attributes enhance binding of PPIase/pharmacophore complexes to diverse intracellular entities, some of which perturb signalization pathways causing immunosuppression and other system-altering phenomena in humans.
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Affiliation(s)
- Andrzej Galat
- Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), CEA, Université Paris-Saclay, F-91191 Gif/Yvette, France.
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63
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Silencing of FKBP51 alleviates the mechanical pain threshold, inhibits DRG inflammatory factors and pain mediators through the NF-kappaB signaling pathway. Gene 2017. [DOI: 10.1016/j.gene.2017.06.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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64
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The Effect of Glucocorticoid and Glucocorticoid Receptor Interactions on Brain, Spinal Cord, and Glial Cell Plasticity. Neural Plast 2017; 2017:8640970. [PMID: 28928988 PMCID: PMC5591892 DOI: 10.1155/2017/8640970] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/14/2017] [Indexed: 12/15/2022] Open
Abstract
Stress, injury, and disease trigger glucocorticoid (GC) elevation. Elevated GCs bind to the ubiquitously expressed glucocorticoid receptor (GR). While GRs are in every cell in the nervous system, the expression level varies, suggesting that diverse cell types react differently to GR activation. Stress/GCs induce structural plasticity in neurons, Schwann cells, microglia, oligodendrocytes, and astrocytes as well as affect neurotransmission by changing the release and reuptake of glutamate. While general nervous system plasticity is essential for adaptation and learning and memory, stress-induced plasticity is often maladaptive and contributes to neuropsychiatric disorders and neuropathic pain. In this brief review, we describe the evidence that stress/GCs activate GR to promote cell type-specific changes in cellular plasticity throughout the nervous system.
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65
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Rare variants of small effect size in neuronal excitability genes influence clinical outcome in Japanese cases of SCN1A truncation-positive Dravet syndrome. PLoS One 2017; 12:e0180485. [PMID: 28686619 PMCID: PMC5501540 DOI: 10.1371/journal.pone.0180485] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/15/2017] [Indexed: 12/18/2022] Open
Abstract
Dravet syndrome (DS) is a rare, devastating form of childhood epilepsy that is often associated with mutations in the voltage-gated sodium channel gene, SCN1A. There is considerable variability in expressivity within families, as well as among individuals carrying the same primary mutation, suggesting that clinical outcome is modulated by variants at other genes. To identify modifier gene variants that contribute to clinical outcome, we sequenced the exomes of 22 individuals at both ends of a phenotype distribution (i.e., mild and severe cognitive condition). We controlled for variation associated with different mutation types by limiting inclusion to individuals with a de novo truncation mutation resulting in SCN1A haploinsufficiency. We performed tests aimed at identifying 1) single common variants that are enriched in either phenotypic group, 2) sets of common or rare variants aggregated in and around genes associated with clinical outcome, and 3) rare variants in 237 candidate genes associated with neuronal excitability. While our power to identify enrichment of a common variant in either phenotypic group is limited as a result of the rarity of mild phenotypes in individuals with SCN1A truncation variants, our top candidates did not map to functional regions of genes, or in genes that are known to be associated with neurological pathways. In contrast, we found a statistically-significant excess of rare variants predicted to be damaging and of small effect size in genes associated with neuronal excitability in severely affected individuals. A KCNQ2 variant previously associated with benign neonatal seizures is present in 3 of 12 individuals in the severe category. To compare our results with the healthy population, we performed a similar analysis on whole exome sequencing data from 70 Japanese individuals in the 1000 genomes project. Interestingly, the frequency of rare damaging variants in the same set of neuronal excitability genes in healthy individuals is nearly as high as in severely affected individuals. Rather than a single common gene/variant modifying clinical outcome in SCN1A-related epilepsies, our results point to the cumulative effect of rare variants with little to no measurable phenotypic effect (i.e., typical genetic background) unless present in combination with a disease-causing truncation mutation in SCN1A.
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Bekhbat M, Rowson SA, Neigh GN. Checks and balances: The glucocorticoid receptor and NFĸB in good times and bad. Front Neuroendocrinol 2017; 46:15-31. [PMID: 28502781 PMCID: PMC5523465 DOI: 10.1016/j.yfrne.2017.05.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/21/2017] [Accepted: 05/09/2017] [Indexed: 01/23/2023]
Abstract
Mutual regulation and balance between the endocrine and immune systems facilitate an organism's stress response and are impaired following chronic stress or prolonged immune activation. Concurrent alterations in stress physiology and immunity are increasingly recognized as contributing factors to several stress-linked neuropsychiatric disorders including depression, anxiety, and post-traumatic stress disorder. Accumulating evidence suggests that impaired balance and crosstalk between the glucocorticoid receptor (GR) and nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) - effectors of the stress and immune axes, respectively - may play a key role in mediating the harmful effects of chronic stress on mood and behavior. Here, we first review the molecular mechanisms of GR and NFκB interactions in health, then describe potential shifts in the GR-NFκB dynamics in chronic stress conditions within the context of brain circuitry relevant to neuropsychiatric diseases. Furthermore, we discuss developmental influences and sex differences in the regulation of these two transcription factors.
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Affiliation(s)
- Mandakh Bekhbat
- Emory University, Graduate Division of Biological Sciences, Neuroscience Graduate Program, United States
| | - Sydney A Rowson
- Emory University, Graduate Division of Biological Sciences, Molecular and Systems Pharmacology Graduate Studies Program, United States
| | - Gretchen N Neigh
- Virginia Commonwealth University, Department of Anatomy & Neurobiology, United States.
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Wei X, Sun Y, Luo F. Impaired Spinal Glucocorticoid Receptor Signaling Contributes to the Attenuating Effect of Depression on Mechanical Allodynia and Thermal Hyperalgesia in Rats with Neuropathic Pain. Front Cell Neurosci 2017; 11:145. [PMID: 28579944 PMCID: PMC5437111 DOI: 10.3389/fncel.2017.00145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 05/03/2017] [Indexed: 11/13/2022] Open
Abstract
Although depression-induced altered pain perception has been described in several laboratory and clinical studies, its neurobiological mechanism in the central nervous system (CNS), particularly in the spinal dorsal horn, remains unclear. Therefore, in this study, we aimed to clarify whether nociceptive sensitivity of neuropathic pain is altered in the olfactory bulbectomy (OB) model of depression and whether glucocorticoid receptor (GR), which is involved in the etio-pathologic mechanisms of both major depression and neuropathic pain, contributes to these processes in the spinal dorsal horn of male Sprague-Dawley rats. The results showed that mechanical allodynia and thermal hyperalgesia induced by spinal nerve ligation (SNL) were attenuated in OB-SNL rats with decreased spinal GR expression and nuclear translocation, whereas non-olfactory bulbectomy (NOB)-SNL rats showed increased spinal GR nuclear translocation. In addition, decreased GR nuclear translocation with normal mechanical nociception and hypoalgesia of thermal nociception were observed in OB-Sham rats. Intrathecal injection (i.t.) of GR agonist dexamethasone (Dex; 4 μg/rat/day for 1 week) eliminated the attenuating effect of depression on nociceptive hypersensitivity in OB-SNL rats and aggravated neuropathic pain in NOB-SNL rats, which was associated with the up-regulation of brain-derived neurotrophic factor (BDNF), TrkB and NR2B expression in the spinal dorsal horn. The present study shows that depression attenuates the mechanical allodynia and thermal hyperalgesia of neuropathic pain and suggests that altered spinal GR-BDNF-TrkB signaling may be one of the reasons for depression-induced hypoalgesia.
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Affiliation(s)
- Xiao Wei
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of SciencesBeijing, China
| | - Yuqi Sun
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,Department of Psychology, University of Chinese Academy of SciencesBeijing, China
| | - Fei Luo
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,Department of Psychology, University of Chinese Academy of SciencesBeijing, China
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Feinberg RK, Hu J, Weaver MA, Fillingim RB, Swor RA, Peak DA, Jones JS, Rathlev NK, Lee DC, Domeier RM, Hendry PL, Liberzon I, McLean SA. Stress-related psychological symptoms contribute to axial pain persistence after motor vehicle collision: path analysis results from a prospective longitudinal study. Pain 2017; 158:682-690. [PMID: 28030471 PMCID: PMC5354970 DOI: 10.1097/j.pain.0000000000000818] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Posttraumatic stress disorder (PTSD) symptoms and pain after traumatic events such as motor vehicle collision (MVC) have been proposed to be mutually promoting. We performed a prospective multicenter study that enrolled 948 individuals who presented to the emergency department within 24 hours of MVC and were discharged home after evaluation. Follow-up evaluations were completed 6 weeks, 6 months, and 1 year after MVC. Path analysis results supported the hypothesis that axial pain after MVC consistently promotes the maintenance of hyperarousal and intrusive symptoms, from the early weeks after injury through 1 year. In addition, path analysis results supported the hypothesis that one or more PTSD symptom clusters had an influence on axial pain outcomes throughout the year after MVC, with hyperarousal symptoms most influencing axial pain persistence in the initial months after MVC. The influence of hyperarousal symptoms on pain persistence was only present among individuals with genetic vulnerability to stress-induced pain, suggesting specific mechanisms by which hyperarousal symptoms may lead to hyperalgesia and allodynia. Further studies are needed to better understand the specific mechanisms by which pain and PTSD symptoms enhance one another after trauma, and how such mechanisms vary among specific patient subgroups, to better inform the development of secondary preventive interventions.
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Affiliation(s)
- Rose K Feinberg
- UNC Institute for Trauma Recovery, University of North Carolina, Chapel Hill, NC, USA
- Departments of Anesthesiology and
| | - JunMei Hu
- UNC Institute for Trauma Recovery, University of North Carolina, Chapel Hill, NC, USA
- Departments of Anesthesiology and
| | - Mark A Weaver
- Medicine and Biostatistics, University of North Carolina, Chapel Hill, NC, USA
| | - Roger B Fillingim
- Department of Community Dentistry and Behavioral Science, University of Florida, Gainesville, FL, USA
| | - Robert A Swor
- Department of Emergency Medicine, William Beaumont Hospital, Royal Oak, MI, USA
| | - David A Peak
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Jeffrey S Jones
- Department of Emergency Medicine, Spectrum Health System, Grand Rapids, MI, USA
| | - Niels K Rathlev
- Department of Emergency Medicine, Baystate Medical Center, Springfield, MA, USA
| | - David C Lee
- Department of Emergency Medicine, North Shore University Hospital, Manhasset, NY, USA
| | - Robert M Domeier
- Department of Emergency Medicine, Saint Joseph Mercy Health System, Ypsilanti, MI, USA
| | - Phyllis L Hendry
- Department of Emergency Medicine, University of Florida, Jacksonville, FL, USA
| | - Israel Liberzon
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Samuel A McLean
- UNC Institute for Trauma Recovery, University of North Carolina, Chapel Hill, NC, USA
- Departments of Anesthesiology and
- Department of Emergency Medicine, University of North Carolina, Chapel Hill, NC, USA
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MicroRNA 320a Predicts Chronic Axial and Widespread Pain Development Following Motor Vehicle Collision in a Stress-Dependent Manner. J Orthop Sports Phys Ther 2016; 46:911-919. [PMID: 27690835 DOI: 10.2519/jospt.2016.6944] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Study Design Prospective human cohort study combined with molecular studies. Background A microRNA is a small, noncoding RNA molecule that can play a role in disease onset. Recent studies found that circulating levels of microRNA 320a (miR-320a) are associated with musculoskeletal pain conditions and that miR-320a is stress responsive. Objectives To investigate whether circulating expression levels of miR-320a in the peritraumatic period predict persistent axial musculoskeletal pain 6 months after motor vehicle collision (MVC). Methods We evaluated whether (1) circulating miR-320a and related members of the miR-320a family predict axial musculoskeletal pain and other musculoskeletal pain outcomes 6 months following MVC, and (2) miR-320a regulates stress system and pain-related transcripts in cell culture. Given the wealth of data suggesting that biological mechanisms influencing pain outcomes are often sex and/or stress dependent, interactions between miR-320a, stress, and sex were evaluated. Results In primary analyses (n = 69), a significant crossover interaction was observed between the influence of circulating miR-320a and peritraumatic distress (β = -0.01, P = .002) on post-MVC axial musculoskeletal pain. Reduced peritraumatic miR-320a expression levels predicted axial musculoskeletal pain in distressed individuals (β = -0.12, P = .006) but not nondistressed individuals. In secondary analyses, miR-320a predicted widespread musculoskeletal pain, and related members of the miR-320a family also predicted axial and widespread musculoskeletal pain. In cell culture, miR-320a bound stress and pain-associated 3'UTR transcripts (FKBP5, ADCYAP1, PER2, and NR3C1). Conclusion These data suggest that miR-320a may help mediate regional and widespread changes in pain sensitivity after MVC. J Orthop Sports Phys Ther 2016;46(10):911-919. doi:10.2519/jospt.2016.6944.
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Abstract
The chaperome constitutes a broad family of molecular chaperones and co-chaperones that facilitate the folding, refolding, and degradation of the proteome. Heat shock protein 90 (Hsp90) promotes the folding of numerous oncoproteins to aid survival of malignant phenotypes, and small molecule inhibitors of the Hsp90 chaperone complex offer a viable approach to treat certain cancers. One therapeutic attribute of this approach is the selectivity of these molecules to target high affinity oncogenic Hsp90 complexes present in tumor cells, which are absent in nontransformed cells. This selectivity has given rise to the idea that disease may contribute to forming a stress chaperome that is functionally distinct in its ability to interact with small molecule Hsp90 modulators. Consistent with this premise, modulating Hsp90 improves clinically relevant endpoints of diabetic peripheral neuropathy but has little impact in nondiabetic nerve. The concept of targeting the "diabetic chaperome" to treat diabetes and its complications is discussed.
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Affiliation(s)
- Rick T Dobrowsky
- Department of Pharmacology and Toxicology, The University of Kansas, 5064 Malott Hall 1251 Wescoe Hall Dr., Lawrence, KS, 66045, USA.
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Dunyak BM, Gestwicki JE. Peptidyl-Proline Isomerases (PPIases): Targets for Natural Products and Natural Product-Inspired Compounds. J Med Chem 2016; 59:9622-9644. [PMID: 27409354 DOI: 10.1021/acs.jmedchem.6b00411] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Peptidyl-proline isomerases (PPIases) are a chaperone superfamily comprising the FK506-binding proteins (FKBPs), cyclophilins, and parvulins. PPIases catalyze the cis/trans isomerization of proline, acting as a regulatory switch during folding, activation, and/or degradation of many proteins. These "clients" include proteins with key roles in cancer, neurodegeneration, and psychiatric disorders, suggesting that PPIase inhibitors could be important therapeutics. However, the active site of PPIases is shallow, solvent-exposed, and well conserved between family members, making selective inhibitor design challenging. Despite these hurdles, macrocyclic natural products, including FK506, rapamycin, and cyclosporin, bind PPIases with nanomolar or better affinity. De novo attempts to derive new classes of inhibitors have been somewhat less successful, often showcasing the "undruggable" features of PPIases. Interestingly, the most potent of these next-generation molecules tend to integrate features of the natural products, including macrocyclization or proline mimicry strategies. Here, we review recent developments and ongoing challenges in the inhibition of PPIases, with a focus on how natural products might inform the creation of potent and selective inhibitors.
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Affiliation(s)
- Bryan M Dunyak
- Department of Biological Chemistry, University of Michigan Medical School , 1150 W. Medical Center Drive, Ann Arbor, Michigan 48109, United States.,Department of Pharmaceutical Chemistry, University of California at San Francisco , 675 Nelson Rising Lane, San Francisco, California 94158, United States
| | - Jason E Gestwicki
- Department of Pharmaceutical Chemistry, University of California at San Francisco , 675 Nelson Rising Lane, San Francisco, California 94158, United States
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Burke NN, Finn DP, McGuire BE, Roche M. Psychological stress in early life as a predisposing factor for the development of chronic pain: Clinical and preclinical evidence and neurobiological mechanisms. J Neurosci Res 2016; 95:1257-1270. [DOI: 10.1002/jnr.23802] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/13/2016] [Accepted: 06/07/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Nikita N. Burke
- Physiology, School of Medicine, National University of Ireland; Galway Ireland
- Centre for Pain Research and Galway Neuroscience Centre, NCBES, National University of Ireland; Galway Ireland
| | - David P. Finn
- Centre for Pain Research and Galway Neuroscience Centre, NCBES, National University of Ireland; Galway Ireland
- Pharmacology and Therapeutics, School of Medicine, National University of Ireland; Galway Ireland
| | - Brian E. McGuire
- Centre for Pain Research and Galway Neuroscience Centre, NCBES, National University of Ireland; Galway Ireland
- Psychology, National University of Ireland; Galway Ireland
| | - Michelle Roche
- Physiology, School of Medicine, National University of Ireland; Galway Ireland
- Centre for Pain Research and Galway Neuroscience Centre, NCBES, National University of Ireland; Galway Ireland
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Young MJ, Geiszler PC, Pardon MC. A novel role for the immunophilin FKBP52 in motor coordination. Behav Brain Res 2016; 313:97-110. [PMID: 27418439 DOI: 10.1016/j.bbr.2016.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/09/2016] [Accepted: 07/10/2016] [Indexed: 02/01/2023]
Abstract
FKBP52 is a ubiquitously distributed immunophilin that has been associated with wide-ranging functions in cell signalling as well as hormonal and stress responses. Amongst other pathways, it acts via complex-formation with corticosteroid receptors and has consequently been associated with stress- and age- related neurodegenerative disorders including Alzheimer's and Parkinson's diseases. Reduced levels of FKBP52 have been linked to tau dysfunction and amyloid beta toxicity in AD. However, FKBP52's role in cognition and neurodegenerative disorder-like phenotypes remain to be elucidated. The present study aimed therefore at investigating the cognitive and behavioural effects of reduced FKBP52 levels of genetically modified mice during ageing. Female and male FKBP52(+/+), FKBP52(+/-) and FKBP52(-/-) mice were compared at two-, ten-, twelve-, fifteen- and eighteen-months-of-age in a series of behavioural tests covering specie-specific behaviour, motor activity and coordination, fear-, spatial and recognition memory as well as curiosity and emotionality. Whilst cognitively unimpaired, FKBP52(+/-) mice performed worse on an accelerating rotating rod than FKBP52(+/+) littermates across all age-groups suggesting that FKBP52 is involved in processes controlling motor coordination. This deficit did not exacerbate with age but did worsen with repeated testing; pointing towards a role for FKBP52 in learning of tasks requiring motor coordination abilities. This study contributes to the knowledge base of FKBP52's implication in neurodegenerative diseases by demonstrating that FKBP52 by itself does not directly affect cognition and may therefore rather play an indirect, modulatory role in the functional pathology of AD, whereas it directly affects motor coordination, an early sign of neurodegenerative damages to the brain.
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Affiliation(s)
- Matthew J Young
- University of Nottingham Medical School, School of Life Sciences, Neuroscience group, Queen's Medical Centre, Nottingham NG7 2UH United Kingdom
| | - Philippine C Geiszler
- University of Nottingham Medical School, School of Life Sciences, Neuroscience group, Queen's Medical Centre, Nottingham NG7 2UH United Kingdom
| | - Marie-Christine Pardon
- University of Nottingham Medical School, School of Life Sciences, Neuroscience group, Queen's Medical Centre, Nottingham NG7 2UH United Kingdom.
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FKBP51 inhibition reduces chronic pain. Nat Rev Drug Discov 2016. [DOI: 10.1038/nrd.2016.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gaali S, Feng X, Hähle A, Sippel C, Bracher A, Hausch F. Rapid, Structure-Based Exploration of Pipecolic Acid Amides as Novel Selective Antagonists of the FK506-Binding Protein 51. J Med Chem 2016; 59:2410-22. [PMID: 26954324 DOI: 10.1021/acs.jmedchem.5b01355] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The FK506-binding protein 51 (FKBP51) is a key regulator of stress hormone receptors and an established risk factor for stress-related disorders. Drug development for FKBP51 has been impaired by the structurally similar but functionally opposing homologue FKBP52. High selectivity between FKBP51 and FKBP52 can be achieved by ligands that stabilize a recently discovered FKBP51-favoring conformation. However, drug-like parameters for these ligands remained unfavorable. In the present study, we replaced the potentially labile pipecolic ester group of previous FKBP51 ligands by various low molecular weight amides. This resulted in the first series of pipecolic acid amides, which had much lower molecular weights without affecting FKBP51 selectivity. We discovered a geminally substituted cyclopentyl amide as a preferred FKBP51-binding motif and elucidated its binding mode to provide a new lead structure for future drug optimization.
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Affiliation(s)
- Steffen Gaali
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry , Kraepelinstrasse 2, 80804 Munich, Germany
| | - Xixi Feng
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry , Kraepelinstrasse 2, 80804 Munich, Germany
| | - Andreas Hähle
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry , Kraepelinstrasse 2, 80804 Munich, Germany
| | - Claudia Sippel
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry , Kraepelinstrasse 2, 80804 Munich, Germany
| | - Andreas Bracher
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry , Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Felix Hausch
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry , Kraepelinstrasse 2, 80804 Munich, Germany
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