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Nelson TS, Sinha GP, Santos DFS, Jukkola P, Prasoon P, Winter MK, McCarson KE, Smith BN, Taylor BK. Spinal neuropeptide Y Y1 receptor-expressing neurons are a pharmacotherapeutic target for the alleviation of neuropathic pain. Proc Natl Acad Sci U S A 2022; 119:e2204515119. [PMID: 36343228 PMCID: PMC9674229 DOI: 10.1073/pnas.2204515119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 09/25/2022] [Indexed: 11/09/2022] Open
Abstract
Peripheral nerve injury sensitizes a complex network of spinal cord dorsal horn (DH) neurons to produce allodynia and neuropathic pain. The identification of a druggable target within this network has remained elusive, but a promising candidate is the neuropeptide Y (NPY) Y1 receptor-expressing interneuron (Y1-IN) population. We report that spared nerve injury (SNI) enhanced the excitability of Y1-INs and elicited allodynia (mechanical and cold hypersensitivity) and affective pain. Similarly, chemogenetic or optogenetic activation of Y1-INs in uninjured mice elicited behavioral signs of spontaneous, allodynic, and affective pain. SNI-induced allodynia was reduced by chemogenetic inhibition of Y1-INs, or intrathecal administration of a Y1-selective agonist. Conditional deletion of Npy1r in DH neurons, but not peripheral afferent neurons prevented the anti-hyperalgesic effects of the intrathecal Y1 agonist. We conclude that spinal Y1-INs are necessary and sufficient for the behavioral symptoms of neuropathic pain and represent a promising target for future pharmacotherapeutic development of Y1 agonists.
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Affiliation(s)
- Tyler S. Nelson
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
- Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, PA 15261
| | - Ghanshyam P. Sinha
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Diogo F. S. Santos
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Peter Jukkola
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Pranav Prasoon
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Michelle K. Winter
- Kansas Intellectual and Developmental Disabilities Research Center; Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - Ken E. McCarson
- Kansas Intellectual and Developmental Disabilities Research Center; Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - Bret N. Smith
- Department of Neuroscience, University of Kentucky, Lexington, KY 40536
| | - Bradley K. Taylor
- Department of Anesthesiology and Perioperative Medicine, Center for Neuroscience, Pittsburgh Center for Pain Research, Pittsburgh Project to End Opioid Misuse, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
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Czarnecka M, Lu C, Pons J, Maheswaran I, Ciborowski P, Zhang L, Cheema A, Kitlinska J. Neuropeptide Y receptor interactions regulate its mitogenic activity. Neuropeptides 2019; 73:11-24. [PMID: 30503694 PMCID: PMC6532649 DOI: 10.1016/j.npep.2018.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 10/15/2018] [Accepted: 11/26/2018] [Indexed: 12/11/2022]
Abstract
Neuropeptide Y (NPY) is a multifunctional neurotransmitter acting via G protein-coupled receptors - Y1R, Y2R and Y5R. NPY activities, such as its proliferative effects, are mediated by multiple receptors, which have the ability to dimerize. However, the role of this receptor interplay in NPY functions remains unclear. The goal of the current study was to identify NPY receptor interactions, focusing on the ligand-binding fraction, and determine their impact on the mitogenic activity of the peptide. Y1R, Y2R and Y5R expressed in CHO-K1 cells formed homodimers detectable on the cell surface by cross-linking. Moreover, Y1R and Y5R heterodimerized, while no Y2R/Y5R heterodimers were detected. Nevertheless, Y5R failed to block internalization of its cognate receptor in both Y1R/Y5R and Y2R/Y5R transfectants, indicating Y5R transactivation upon stimulation of the co-expressed receptor. These receptor interactions correlated with an augmented mitogenic response to NPY. In Y1R/Y5R and Y2R/Y5R transfectants, the proliferative response started at picomolar NPY concentrations, while nanomolar concentrations were needed to trigger proliferation in cells transfected with single receptors. Thus, our data identify direct and indirect heterotypic NPY receptor interactions as the mechanism amplifying its activity. Understanding these processes is crucial for the design of treatments targeting the NPY system.
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Affiliation(s)
- Magdalena Czarnecka
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC, USA
| | - Congyi Lu
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC, USA; New York Genome Center, New York, NY, USA
| | - Jennifer Pons
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC, USA
| | - Induja Maheswaran
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC, USA
| | - Pawel Ciborowski
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Lihua Zhang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Amrita Cheema
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | - Joanna Kitlinska
- Department of Physiology and Biophysics, Georgetown University Medical Center, Washington, DC, USA; Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, USA.
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Galanin receptor 2-neuropeptide Y Y1 receptor interactions in the amygdala lead to increased anxiolytic actions. Brain Struct Funct 2014; 220:2289-301. [DOI: 10.1007/s00429-014-0788-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 04/25/2014] [Indexed: 02/06/2023]
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4
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Dimers of G-protein coupled receptors as versatile storage and response units. Int J Mol Sci 2014; 15:4856-77. [PMID: 24651459 PMCID: PMC3975428 DOI: 10.3390/ijms15034856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 11/17/2022] Open
Abstract
The status and use of transmembrane, extracellular and intracellular domains in oligomerization of heptahelical G-protein coupled receptors (GPCRs) are reviewed and for transmembrane assemblies also supplemented by new experimental evidence. The transmembrane-linked GPCR oligomers typically have as the minimal unit an asymmetric ~180 kDa pentamer consisting of receptor homodimer or heterodimer and a G-protein αβγ subunit heterotrimer. With neuropeptide Y (NPY) receptors, this assembly is converted to ~90 kDa receptor monomer-Gα complex by receptor and Gα agonists, and dimers/heteropentamers are depleted by neutralization of Gαi subunits by pertussis toxin. Employing gradient centrifugation, quantification and other characterization of GPCR dimers at the level of physically isolated and identified heteropentamers is feasible with labeled agonists that do not dissociate upon solubilization. This is demonstrated with three neuropeptide Y (NPY) receptors and could apply to many receptors that use large peptidic agonists.
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O'Dowd BF, Ji X, O'Dowd PB, Nguyen T, George SR. Disruption of the mu-delta opioid receptor heteromer. Biochem Biophys Res Commun 2012; 422:556-60. [PMID: 22583900 DOI: 10.1016/j.bbrc.2012.05.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 05/04/2012] [Indexed: 01/07/2023]
Abstract
The crystal structure of the mu and kappa opioid receptors has revealed dimeric structural arrangements. Mu-delta receptors heteromers also exist and we have identified discrete cytoplasmic regions in each receptor required for oligomer formation. In the carboxyl tail of the delta receptor we identified three glycine residues (-GGG), substitution of any of these residues prevented heteromer formation. In intracellular loop 3 of both mu and delta receptors we identified three residues (-SVR), substitution of any of these residues prevented heteromer formation.
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Affiliation(s)
- Brian F O'Dowd
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada M5S 1A8.
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6
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Parker MS, Sah R, Balasubramaniam A, Sallee FR, Zerbe O, Parker SL. Non-specific binding and general cross-reactivity of Y receptor agonists are correlated and should importantly depend on their acidic sectors. Peptides 2011; 32:258-65. [PMID: 21126552 PMCID: PMC3025077 DOI: 10.1016/j.peptides.2010.11.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2010] [Revised: 11/12/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
Abstract
Non-specific binding of Y receptor agonists to intact CHO cells, and to CHO cell or rat brain particulates, is much greater for human neuropeptide Y (hNPY) compared to porcine peptide Y (pPYY), and especially relative to human pancreatic polypeptide (hPP). This binding of hNPY is reduced by alkali cations in preference to non-ionic chaotrope urea, while the much lower non-specific binding of pPYY is more sensitive to urea. The difference could mainly be due to the 10-16 stretch in 36-residue Y agonists (residues 8-14 in N-terminally clipped 34-peptides), located in the sector that contains all acidic residues of physiological Y agonists. Anionic pairs containing aspartate in the 10-16 zone could be principally responsible for non-specific attachments, but may also aid the receptor site binding. Two such pairs are found in hNPY, one in pPYY, and none in hPP. The hydroxyl amino acid residue at position 13 in mammalian PYY and PP molecules could lower conformational plasticity and the non-selective binding via intrachain hydrogen bonding. The acidity of this tract could also be important in agonist selectivity of the Y receptor subtypes. The differences point to an evolutionary reduction of promiscuous protein binding from NPY to PP, and should also be important for Y agonist selectivity within NPY receptor group, and correlate with partial agonism and out-of group cross-reactivity with other receptors.
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Affiliation(s)
- M. S. Parker
- Department. of Molecular Cell Sciences, Univ. of Memphis, Memphis, TN 38152, USA
| | - R. Sah
- Department of Surgery, Univ. of Cincinnati, Cincinnati, OH 45267, USA
| | - A. Balasubramaniam
- Department of Psychiatry, Univ. of Cincinnati, Cincinnati, OH 45267, USA
| | - F. R. Sallee
- Department of Surgery, Univ. of Cincinnati, Cincinnati, OH 45267, USA
| | - O. Zerbe
- Department of Organic Chemistry, Univ. of Basel, Basel, CH-8057, Switzerland
| | - S. L. Parker
- Department of Pharmacology, Univ. of Tennessee Health Science Center, Memphis, TN 38163, USA
- Corresponding author at: Department of Pharmacology, UTHSC Memphis, Memphis TN 38163, USA,
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7
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Estes AM, McAllen K, Parker MS, Sah R, Sweatman T, Park EA, Balasubramaniam A, Sallee FR, Walker MW, Parker SL. Maintenance of Y receptor dimers in epithelial cells depends on interaction with G-protein heterotrimers. Amino Acids 2010; 40:371-80. [DOI: 10.1007/s00726-010-0642-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 05/25/2010] [Indexed: 12/01/2022]
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Two intracellular helices of G-protein coupling receptors could generally support oligomerization and coupling with transducers. Amino Acids 2010; 40:261-8. [PMID: 20571842 DOI: 10.1007/s00726-010-0616-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 04/27/2010] [Indexed: 10/19/2022]
Abstract
For many G-protein coupling receptors (GPCRs), the upkeep of receptor dimers could depend on association with functional Gi α subunits. This is known for Y1, Y2 and Y4 neuropeptide Y receptors [presented in the companion paper (Estes et al., Amino Acids, doi: 10.1007/s00726-010-0642-z , 2010)]. Interactions with transducers use mainly intracellular domains of the receptors. Intracellular loops 1 and 2 in GPCRs are short and lack extensive helicity that could support transducer anchoring. Interaction with G-proteins is known to use the juxtamembrane Helix 8 in the fourth intracellular domain, for which we document a helix-stabilizing n/(n + 4) pattern of large hydrophobic sidechains. Another intracellular helix located in the C-terminal portion of the third intracellular loop does not display a strong stabilizing pattern, and is found in many studies to serve dynamically in association and activation of transducers and effectors. We show that these tracts share features across metazoan phyla not only in opsins and opsin-like receptors (including the Y receptors), but also in Taste-2 and Frizzled receptors. Similarities of these helices across GPCR groups could have both phylogenetic and functional roots.
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Grant M, Kumar U. The role of G-proteins in the dimerisation of human somatostatin receptor types 2 and 5. ACTA ACUST UNITED AC 2010; 159:3-8. [DOI: 10.1016/j.regpep.2009.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 07/13/2009] [Accepted: 08/16/2009] [Indexed: 01/15/2023]
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Parker MS, Sah R, Balasubramaniam A, Sallee FR, Sweatman T, Park EA, Parker SL. Dimers of the neuropeptide Y (NPY) Y2 receptor show asymmetry in agonist affinity and association with G proteins. J Recept Signal Transduct Res 2009; 28:437-51. [PMID: 18946765 DOI: 10.1080/10799890802447423] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In conditions precluding activation of G proteins, the binding of agonists to dimers of the neuropeptide Y (NPY) Y2 receptor shows two components of similar size, but differing in affinity. The dimers of all NPY receptors are solubilized as approximately 180-kDa complexes containing one G protein alpha beta gamma trimer. These heteropentamers are stable to excess agonists, chelators, and alkylators. However, dispersion in the weak surfactant cholate releases approximately 300-kDa complexes. These findings indicate that both protomers in the Y2 dimer are associated with G protein heterotrimers, but the extent of interaction depends on affinity for the agonist peptide. The G protein in contact with the first-liganded, higher-affinity protomer should have a stronger interaction with the receptor and a larger probability of activation.
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Affiliation(s)
- M S Parker
- Department of Molecular Cell Sciences, University of Memphis, Memphis, Tennessee, USA.
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Parker MS, Parker SL. The fourth intracellular domain of G-protein coupling receptors: helicity, basicity and similarity to opsins. Amino Acids 2009; 38:1-13. [DOI: 10.1007/s00726-009-0316-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Accepted: 06/15/2009] [Indexed: 11/27/2022]
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12
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Parker SL, Parker MS, Estes AM, Wong YY, Sah R, Sweatman T, Park EA, Balasubramaniam A, Sallee FR. The neuropeptide Y (NPY) Y2 receptors are largely dimeric in the kidney, but monomeric in the forebrain. J Recept Signal Transduct Res 2008; 28:245-63. [PMID: 18569526 DOI: 10.1080/10799890802084341] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The neuropeptide Y(NPY) Y2 receptors are detected largely as dimers in the clonal expressions in CHO cells and in particulates from rabbit kidney cortex. However, in two areas of the forebrain (rat or rabbit piriform cortex and hypothalamus), these receptors are found mainly as monomers. Evidence is presented that this difference relates to large levels of G proteins containing the Gi alpha -subunit in the forebrain areas. The predominant monomeric status of these Y2 receptors should also be physiologically linked to large synaptic inputs of the agonist NPY. The rabbit kidney and the human CHO cell-expressed Y2 dimers are converted by agonists to monomers in vitro at a similar rate in the presence of divalent cations.
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Affiliation(s)
- S L Parker
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA.
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Böhme I, Stichel J, Walther C, Mörl K, Beck-Sickinger AG. Agonist induced receptor internalization of neuropeptide Y receptor subtypes depends on third intracellular loop and C-terminus. Cell Signal 2008; 20:1740-9. [DOI: 10.1016/j.cellsig.2008.05.017] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Accepted: 05/26/2008] [Indexed: 10/22/2022]
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Estes A, Wong Y, Parker M, Sallee F, Balasubramaniam A, Parker S. Neuropeptide Y (NPY) Y2 receptors of rabbit kidney cortex are largely dimeric. ACTA ACUST UNITED AC 2008; 150:88-94. [DOI: 10.1016/j.regpep.2008.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 04/28/2008] [Accepted: 06/01/2008] [Indexed: 10/22/2022]
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Parker SL, Parker MS, Wong YY, Sah R, Balasubramaniam A, Sallee F. Importance of a N-terminal aspartate in the internalization of the neuropeptide Y Y2 receptor. Eur J Pharmacol 2008; 594:26-31. [PMID: 18700141 DOI: 10.1016/j.ejphar.2008.07.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 07/14/2008] [Accepted: 07/23/2008] [Indexed: 10/21/2022]
Abstract
With human neuropeptide Y Y2 receptor expressed in the Chinese hamster ovary (CHO) cells, the Asp35Ala mutation, and especially the change of Pro34Asp35 to Ala34Ala35, decrease the compartmentalization and strongly accelerate internalization of the receptor. These changes are not associated with alterations in agonist affinity, G-protein interaction, dimerization, or level of expression of the mutated receptors relative to the wildtype receptor. The proline-flanked aspartate in the N-terminal extracellular segment of the neuropeptide Y Y2 receptor thus apparently has a large role in anchoring and compartmentalization of the receptor. However, the Pro34Ala mutation does not significantly affect the embedding and cycling of the receptor.
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Affiliation(s)
- Steven L Parker
- Department of Pharmacology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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