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Abstract
Inspired by reports of water sculpted Tn antigen (α-GalNAc-O-Ser/Thr) epitopes and our interest in producing metabolically more stable C-linked analogs of Tn, we explored the utility of C2 functionality on α-Gal-C-alkenes to deliver hydroxyl to the pendant alkenyl chain. Toward this end, a cyclic carbonate approach gave rise to a single C-linked α-Gal-1'(S)-hydroxyethane in 3 steps, and use of a 2-(hydroxyimino)galactoside cyclization transferred an oxygen to a pendant cis-substituted C-linked alkene affording the R-configuration at the newly formed stereocenter (7:1 dr). Reduction and acetylation of the resultant isoxazoline demonstrated this approach as a viable route to C-linked α-GalNAc-1'-hydroxyalkanes.
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Affiliation(s)
- Ernest G Nolen
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY 13346, USA
| | - Ezra S Hornik
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY 13346, USA
| | - Kendra B Jeans
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY 13346, USA
| | - Weiyu Zhong
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY 13346, USA
| | - Danielle M LaPaglia
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, NY 13346, USA
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Sapio MR, Vazquez FA, Loydpierson AJ, Maric D, Kim JJ, LaPaglia DM, Puhl HL, Lu VB, Ikeda SR, Mannes AJ, Iadarola MJ. Comparative Analysis of Dorsal Root, Nodose and Sympathetic Ganglia for the Development of New Analgesics. Front Neurosci 2021; 14:615362. [PMID: 33424545 PMCID: PMC7793666 DOI: 10.3389/fnins.2020.615362] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/25/2020] [Indexed: 12/18/2022] Open
Abstract
Interoceptive and exteroceptive signals, and the corresponding coordinated control of internal organs and sensory functions, including pain, are received and orchestrated by multiple neurons within the peripheral, central and autonomic nervous systems. A central aim of the present report is to obtain a molecularly informed basis for analgesic drug development aimed at peripheral rather than central targets. We compare three key peripheral ganglia: nodose, sympathetic (superior cervical), and dorsal root ganglia in the rat, and focus on their molecular composition using next-gen RNA-Seq, as well as their neuroanatomy using immunocytochemistry and in situ hybridization. We obtained quantitative and anatomical assessments of transmitters, receptors, enzymes and signaling pathways mediating ganglion-specific functions. Distinct ganglionic patterns of expression were observed spanning ion channels, neurotransmitters, neuropeptides, G-protein coupled receptors (GPCRs), transporters, and biosynthetic enzymes. The relationship between ganglionic transcript levels and the corresponding protein was examined using immunohistochemistry for select, highly expressed, ganglion-specific genes. Transcriptomic analyses of spinal dorsal horn and intermediolateral cell column (IML), which form the termination of primary afferent neurons and the origin of preganglionic innervation to the SCG, respectively, disclosed pre- and post-ganglionic molecular-level circuits. These multimodal investigations provide insight into autonomic regulation, nodose transcripts related to pain and satiety, and DRG-spinal cord and IML-SCG communication. Multiple neurobiological and pharmacological contexts can be addressed, such as discriminating drug targets and predicting potential side effects, in analgesic drug development efforts directed at the peripheral nervous system.
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Affiliation(s)
- Matthew R Sapio
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Fernando A Vazquez
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Amelia J Loydpierson
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Dragan Maric
- Flow and Imaging Cytometry Core Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Jenny J Kim
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Danielle M LaPaglia
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Henry L Puhl
- Section on Neurotransmitter Signaling, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, United States
| | - Van B Lu
- Section on Neurotransmitter Signaling, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, United States
| | - Stephen R Ikeda
- Section on Neurotransmitter Signaling, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, United States
| | - Andrew J Mannes
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
| | - Michael J Iadarola
- Anesthesia Section, Department of Perioperative Medicine, National Institutes of Health Clinical Center, Bethesda, MD, United States
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Sapio MR, Neubert JK, LaPaglia DM, Maric D, Keller JM, Raithel SJ, Rohrs EL, Anderson EM, Butman JA, Caudle RM, Brown DC, Heiss JD, Mannes AJ, Iadarola MJ. Pain control through selective chemo-axotomy of centrally projecting TRPV1+ sensory neurons. J Clin Invest 2018; 128:1657-1670. [PMID: 29408808 DOI: 10.1172/jci94331] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 02/01/2018] [Indexed: 11/17/2022] Open
Abstract
Agonists of the vanilloid receptor transient vanilloid potential 1 (TRPV1) are emerging as highly efficacious nonopioid analgesics in preclinical studies. These drugs selectively lesion TRPV1+ primary sensory afferents, which are responsible for the transmission of many noxious stimulus modalities. Resiniferatoxin (RTX) is a very potent and selective TRPV1 agonist and is a promising candidate for treating many types of pain. Recent work establishing intrathecal application of RTX for the treatment of pain resulting from advanced cancer has demonstrated profound analgesia in client-owned dogs with osteosarcoma. The present study uses transcriptomics and histochemistry to examine the molecular mechanism of RTX action in rats, in clinical canine subjects, and in 1 human subject with advanced cancer treated for pain using intrathecal RTX. In all 3 species, we observe a strong analgesic action, yet this was accompanied by limited transcriptional alterations at the level of the dorsal root ganglion. Functional and neuroanatomical studies demonstrated that intrathecal RTX largely spares susceptible neuronal perikarya, which remain active peripherally but unable to transmit signals to the spinal cord. The results demonstrate that central chemo-axotomy of the TRPV1+ afferents underlies RTX analgesia and refine the neurobiology underlying effective clinical use of TRPV1 agonists for pain control.
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Affiliation(s)
- Matthew R Sapio
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
| | - John K Neubert
- Department of Orthodontics, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - Danielle M LaPaglia
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
| | - Dragan Maric
- Flow Cytometry Core Facility, NIH, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA
| | - Jason M Keller
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
| | - Stephen J Raithel
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
| | - Eric L Rohrs
- Department of Orthodontics, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - Ethan M Anderson
- Department of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - John A Butman
- Clinical Center, Radiology and Imaging Services, NIH, Bethesda, Maryland, USA
| | - Robert M Caudle
- Department of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - Dorothy C Brown
- Veterinary Clinical Investigations Center, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| | - John D Heiss
- Surgical Neurology Branch, NIH, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA
| | - Andrew J Mannes
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
| | - Michael J Iadarola
- Clinical Center, Department of Perioperative Medicine, NIH, Bethesda, Maryland, USA
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Ramsden CE, Domenichiello AF, Yuan ZX, Sapio MR, Keyes GS, Mishra SK, Gross JR, Majchrzak-Hong S, Zamora D, Horowitz MS, Davis JM, Sorokin AV, Dey A, LaPaglia DM, Wheeler JJ, Vasko MR, Mehta NN, Mannes AJ, Iadarola MJ. A systems approach for discovering linoleic acid derivatives that potentially mediate pain and itch. Sci Signal 2017; 10:10/493/eaal5241. [PMID: 28831021 DOI: 10.1126/scisignal.aal5241] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chronic pain and itch are common hypersensitivity syndromes that are affected by endogenous mediators. We applied a systems-based, translational approach to predict, discover, and characterize mediators of pain and itch that are regulated by diet and inflammation. Profiling of tissue-specific precursor abundance and biosynthetic gene expression predicted that inflamed skin would be abundant in four previously unknown 11-hydroxy-epoxy- or 11-keto-epoxy-octadecenoate linoleic acid derivatives and four previously identified 9- or 13-hydroxy-epoxy- or 9- or 13-keto-epoxy-octadecenoate linoleic acid derivatives. All of these mediators were confirmed to be abundant in rat and human skin by mass spectrometry. However, only the two 11-hydroxy-epoxy-octadecenoates sensitized rat dorsal root ganglion neurons to release more calcitonin gene-related peptide (CGRP), which is involved in pain transmission, in response to low pH (which mimics an inflammatory state) or capsaicin (which activates ion channels involved in nociception). The two 11-hydroxy-epoxy-octadecenoates share a 3-hydroxy-Z-pentenyl-E-epoxide moiety, thus suggesting that this substructure could mediate nociceptor sensitization. In rats, intradermal hind paw injection of 11-hydroxy-12,13-trans-epoxy-(9Z)-octadecenoate elicited C-fiber-mediated sensitivity to thermal pain. In a randomized trial testing adjunctive strategies to manage refractory chronic headaches, reducing the dietary intake of linoleic acid was associated with decreases in plasma 11-hydroxy-12,13-trans-epoxy-(9Z)-octadecenoate, which correlated with clinical pain reduction. Human psoriatic skin had 30-fold higher 9-keto-12,13-trans-epoxy-(10E)-octadecenoate compared to control skin, and intradermal injection of this compound induced itch-related scratching behavior in mice. Collectively, these findings define a family of endogenous mediators with potential roles in pain and itch.
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Affiliation(s)
- Christopher E Ramsden
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA. .,Intramural Program of the National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD 20814, USA.,Department of Physical Medicine and Rehabilitation, University of North Carolina at Chapel Hill, Chapel Hill, NC 27516, USA
| | - Anthony F Domenichiello
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA.,Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Zhi-Xin Yuan
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA
| | - Matthew R Sapio
- Department of Perioperative Medicine, Clinical Center, NIH, Bethesda, MD 20814, USA
| | - Gregory S Keyes
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA
| | - Santosh K Mishra
- Department of Molecular Biomedical Sciences, NC State College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
| | - Jacklyn R Gross
- Department of Perioperative Medicine, Clinical Center, NIH, Bethesda, MD 20814, USA
| | - Sharon Majchrzak-Hong
- Intramural Program of the National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD 20814, USA
| | - Daisy Zamora
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA.,Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27516, USA
| | - Mark S Horowitz
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA
| | - John M Davis
- Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 21224, USA.,Department of Psychiatry, College of Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alexander V Sorokin
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20814, USA
| | - Amit Dey
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20814, USA
| | - Danielle M LaPaglia
- Department of Perioperative Medicine, Clinical Center, NIH, Bethesda, MD 20814, USA
| | - Joshua J Wheeler
- Department of Molecular Biomedical Sciences, NC State College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
| | - Michael R Vasko
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nehal N Mehta
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20814, USA
| | - Andrew J Mannes
- Department of Perioperative Medicine, Clinical Center, NIH, Bethesda, MD 20814, USA
| | - Michael J Iadarola
- Department of Perioperative Medicine, Clinical Center, NIH, Bethesda, MD 20814, USA
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LaPaglia DM, Sapio MR, Burbelo PD, Thierry-Mieg J, Thierry-Mieg D, Raithel SJ, Ramsden CE, Iadarola MJ, Mannes AJ. RNA-Seq investigations of human post-mortem trigeminal ganglia. Cephalalgia 2017; 38:912-932. [PMID: 28699403 DOI: 10.1177/0333102417720216] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background The trigeminal ganglion contains neurons that relay sensations of pain, touch, pressure, and many other somatosensory modalities to the central nervous system. The ganglion is also a reservoir for latent herpes virus 1 infection. To gain a better understanding of molecular factors contributing to migraine and headache, transcriptome analyses were performed on postmortem human trigeminal ganglia. Methods RNA-Seq measurements of gene expression were conducted on small sub-regions of 16 human trigeminal ganglia. The samples were also characterized for transcripts derived from viral and microbial genomes. Herpes simplex virus 1 (HSV-1) antibodies in blood were measured using the luciferase immunoprecipitation assay. Results Observed molecular heterogeneity could be explained by sampling of anatomically distinct sub-regions of the excised ganglia consistent with neurally-enriched and non-neural, i.e. Schwann cell, enriched subregions. The levels of HSV-1 transcripts detected in trigeminal ganglia correlated with blood levels of HSV-1 antibodies. Multiple migraine susceptibility genes were strongly expressed in neurally-enriched trigeminal samples, while others were expressed in blood vessels. Conclusions These data provide a comprehensive human trigeminal transcriptome and a framework for evaluation of inhomogeneous post-mortem tissues through extensive quality control and refined downstream analyses for RNA-Seq methodologies. Expression profiling of migraine susceptibility genes identified by genetic association appears to emphasize the blood vessel component of the trigeminovascular system. Other genes displayed enriched expression in the trigeminal compared to dorsal root ganglion, and in-depth transcriptomic analysis of the KCNK18 gene underlying familial migraine shows selective neural expression within two specific populations of ganglionic neurons. These data suggest that expression profiling of migraine-associated genes can extend and amplify the underlying neurobiological insights obtained from genetic association studies.
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Affiliation(s)
- Danielle M LaPaglia
- 1 Department of Perioperative Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Matthew R Sapio
- 1 Department of Perioperative Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Peter D Burbelo
- 2 Dental Clinical Research Core, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Jean Thierry-Mieg
- 3 National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD, USA
| | - Danielle Thierry-Mieg
- 3 National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD, USA
| | - Stephen J Raithel
- 1 Department of Perioperative Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Christopher E Ramsden
- 4 Lipid Mediators, Inflammation, and Pain Unit, Laboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.,5 Intramural Program of the National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Michael J Iadarola
- 1 Department of Perioperative Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Andrew J Mannes
- 1 Department of Perioperative Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, USA
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