Overview
Background
Professor Lewis started working on toxins during his PhD studies at the University of Queensland, where he researched the nature and pharmacology of ciguatoxins responsible for ciguatera fish poisoning. After 10 years with the Queensland Department of Primary Industry following this line of research, he moved back to The University of Queensland to initiate research into the phamacology of conotoxins, small venom peptides produced by carnivorous cone snails. This research led to the isolation and characterisation of several new classes of conotoxins, including two (w-CVID and Xen2174) that were developed clinically. His current research focusses on the discovery, evolution and structure-function of venom peptides, especially those with potential for the treatment of difficult to manage pain.
Availability
- Professor Richard Lewis is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor of Science, James Cook University
- Doctor of Philosophy, The University of Queensland
Research interests
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Molecular Pharmacology
Currently we are investigating conotoxins that selectively target the nicotinic acetylcholine and NMDA receptors, the voltage sensitive calcium and sodium channels, and the noradrenaline transporter. Complimentary interactions between conotoxins and their receptor are being established to better understand where and how they act at the molecular level. The aim of this research is to develop research tools and potential therapeutics for poorly treated diseases such as chronic pain. This research involves assay-guided isolation of venom peptides, peptide synthesis, tissue pharmacology, radioligand binding and electrophysiological studies, as well as receptor mutagenesis, modelling and docking. Specific projects include: <li>Discovery of novel bioactive peptides (conotoxins or conopeptides) from Cone snail venom. The nicotinic acetylcholine receptor is a nonselective cation channel stimulated by acetylcholine and selectively inhibited by �-conotoxins. <li>We have discovered several new �-conotoxins using receptors expressed in oocytes to guide crude venom fractionation. Several had unusual structure and subtype selectivity. Homology modelling and docking studies are allowing us to understand, at the molecular level, how these selectivity differences arise <li>The NMDA receptor, an important non-selective cation channel in the brain, is inhibited by conantokins. Using conantokin analogues, we recently found that specific subtypes of the NMDA receptor are lost in Alzheimer's disease. Currently we are trying to establish their identity to better understand how Alzheimer's disease develops <li>The voltage sensitive N-type calcium channel, a neuronal calcium channel found in pathways involved in the transmission of painful stimuli, is inhibited by �-conotoxins. We recently identified a novel variant of this channel using CVID. This variant is currently under investigation to understand its role in chronic pain <li>The voltage sensitive sodium channels, particularly those found in neurons inhibited by �-conotoxins, are also under investigation. We have established that �-conotoxins selectively target persistent forms of the TTX-sensitive sodium channel. The nature and role of these sodium channels is currently under investigation <li>The noradrenaline transporter (NET) is the primary route of noradrenaline removal from synapses. We have identified �-conotoxins as the first peptide inhibitor of NET, and its effectiveness in treating neuropathic pain and depression. We are presently establishing the complimentary interactions between �-conotoxins and NET to understand where and how they act at the molecular level. Our research has led to the formation of the biotechnology company Xenome Ltd. Xenome is focused on discovering and developing new pharmaceuticals from the venom of Australian animals.
Research impacts
Professor Lewis' research on novel analgaesics from Australian venomous animals has the potential to change the way severe pain is currently treated. His research on ciguatera has the potential to improve the management of this severe illness associated with the consumption of tropical reef fish that affects ~50,000 people per annum.
Works
Search Professor Richard Lewis’s works on UQ eSpace
2024
Journal Article
Novel scorpion toxin ω-Buthitoxin-Hf1a selectively inhibits calcium influx via CaV3.3 and CaV3.2 and alleviates allodynia in a mouse model of acute postsurgical pain
Wang, Dan, Herzig, Volker, Dekan, Zoltan, Rosengren, K. Johan, Payne, Colton D., Hasan, Md. Mahadhi, Zhuang, Jiajie, Bourinet, Emmanuel, Ragnarsson, Lotten, Alewood, Paul F. and Lewis, Richard J. (2024). Novel scorpion toxin ω-Buthitoxin-Hf1a selectively inhibits calcium influx via CaV3.3 and CaV3.2 and alleviates allodynia in a mouse model of acute postsurgical pain. International Journal of Molecular Sciences, 25 (9) 4745. doi: 10.3390/ijms25094745
2024
Journal Article
HSQC spectra simulation and matching for molecular identification
Priessner, Martin, Lewis, Richard J., Johansson, Magnus J., Goodman, Jonathan M., Janet, Jon Paul and Tomberg, Anna (2024). HSQC spectra simulation and matching for molecular identification. Journal of Chemical Information and Modeling, 64 (8), 3180-3191. doi: 10.1021/acs.jcim.3c01735
2024
Journal Article
Discovery and Characterization of a Bicyclic Peptide (Bicycle) Binder to Thymic Stromal Lymphopoietin
Narjes, Frank, Edfeldt, Fredrik, Petersen, Jens, Oster, Linda, Hamblet, Corinne, Bird, James, Bold, Peter, Rae, Rebecca, Back, Elisabeth, Stomilovic, Stina, Zlatoidsky, Pavol, Svensson, Tor, Hidestal, Lotta, Kunalingam, Lavaniya, Shamovsky, Igor, De Maria, Leonardo, Gordon, Euan, Lewis, Richard J., Watcham, Sophie, van Rietschoten, Katerine, Mudd, Gemma E., Harrison, Helen, Chen, Liuhong and Skynner, Michael J. (2024). Discovery and Characterization of a Bicyclic Peptide (Bicycle) Binder to Thymic Stromal Lymphopoietin. Journal of Medicinal Chemistry, 67 (3), 2220-2235. doi: 10.1021/acs.jmedchem.3c02163
2024
Journal Article
Inhibition of N-Type Calcium Channels by Phenoxyaniline and Sulfonamide Analogues
Bispat, Anjie, Cardoso, Fernanda, Hasan, Md. Mahadhi, Dongol, Yashad, Wilcox, Ricki, Lewis, Richard, Duggan, Peter James and Tuck, Kellie (2024). Inhibition of N-Type Calcium Channels by Phenoxyaniline and Sulfonamide Analogues. RSC Medicinal Chemistry, 15 (3), 916-936. doi: 10.1039/d3md00714f
2024
Journal Article
N-Sulfonylphenoxazines as neuronal calcium ion channel blockers
Schmit, Matthieu, Hasan, Md. Mahadhi, Dongol, Yashad, Cardoso, Fernanda C., Kuiper, Michael J., Lewis, Richard J., Duggan, Peter J. and Tuck, Kellie L. (2024). N-Sulfonylphenoxazines as neuronal calcium ion channel blockers. RSC Medicinal Chemistry, 15 (7), 2400-2412. doi: 10.1039/d4md00336e
2023
Journal Article
Structure-function and rational design of a spider toxin Ssp1a at human voltage-gated sodium channel subtypes
Dongol, Yashad, Wilson, David T., Daly, Norelle L., Cardoso, Fernanda C. and Lewis, Richard J. (2023). Structure-function and rational design of a spider toxin Ssp1a at human voltage-gated sodium channel subtypes. Frontiers in Pharmacology, 14 1277143, 1-13. doi: 10.3389/fphar.2023.1277143
2023
Journal Article
Development of a selective peptide κ-opioid receptor antagonist by late-stage functionalization with cysteine staples
Muratspahić, Edin, White, Andrew M., Ciotu, Cosmin I., Hochrainer, Nadine, Tomašević, Nataša, Koehbach, Johannes, Lewis, Richard J., Spetea, Mariana, Fischer, Michael J. M., Craik, David J. and Gruber, Christian W. (2023). Development of a selective peptide κ-opioid receptor antagonist by late-stage functionalization with cysteine staples. Journal of Medicinal Chemistry, 66 (17), 11843-11854. doi: 10.1021/acs.jmedchem.3c00426
2023
Journal Article
Ciguatera fish poisoning in the Caribbean Sea and Atlantic Ocean: reconciling the multiplicity of ciguatoxins and analytical chemistry approach for public health safety
Pottier, Ivannah, Lewis, Richard J. and Vernoux, Jean-Paul (2023). Ciguatera fish poisoning in the Caribbean Sea and Atlantic Ocean: reconciling the multiplicity of ciguatoxins and analytical chemistry approach for public health safety. Toxins, 15 (7) 453, 1-40. doi: 10.3390/toxins15070453
2023
Journal Article
Coordinated adaptations define the ontogenetic shift from worm-to fish-hunting in a venomous cone snail
Rogalski, Aymeric, Himaya, S. W. A. and Lewis, Richard J. (2023). Coordinated adaptations define the ontogenetic shift from worm-to fish-hunting in a venomous cone snail. Nature Communications, 14 (1) 3287, 1-11. doi: 10.1038/s41467-023-38924-5
2023
Journal Article
The T type calcium channel CaV3.2 regulates bladder afferent responses to mechanical stimuli
Grundy, Luke, Tay, Cindy, Christie, Stewart, Harrington, Andrea M., Castro, Joel, Cardoso, Fernanda C., Lewis, Richard J., Zagorodnyuk, Vladimir and Brierley, Stuart M. (2023). The T type calcium channel CaV3.2 regulates bladder afferent responses to mechanical stimuli. Pain, 164 (5), 1012-1026. doi: 10.1097/j.pain.0000000000002795
2023
Journal Article
Unravelling the allosteric binding mode of αD-VxXXB at nicotinic acetylcholine receptors
Ho, Thao NT, Abraham, Nikita and Lewis, Richard J. (2023). Unravelling the allosteric binding mode of αD-VxXXB at nicotinic acetylcholine receptors. Frontiers in Pharmacology, 14 1170514, 1170514. doi: 10.3389/fphar.2023.1170514
2023
Journal Article
Model of the origin of a ciguatoxic grouper (Plectropomus leopardus)
Holmes, Michael J. and Lewis, Richard J. (2023). Model of the origin of a ciguatoxic grouper (Plectropomus leopardus). Toxins, 15 (3) 230, 1-20. doi: 10.3390/toxins15030230
2023
Journal Article
"Importance of Binding Site Hydration and Flexibility Revealed When Optimizing a Macrocyclic Inhibitor of the Keap1-Nrf2 Protein-Protein Interaction" (vol 65, pg 2204, 2022)
Begnini, Fabio, Geschwindner, Stefan, Johansson, Patrik, Wissler, Lisa, Lewis, Richard J., Danelius, Emma, Luttens, Andreas, Matricon, Pierre, Carlsson, Jens, Lenders, Stijn, Koenig, Beate, Friedel, Anna, Sjoe, Peter, Schiesser, Stefan and Kihlberg, Jan (2023). "Importance of Binding Site Hydration and Flexibility Revealed When Optimizing a Macrocyclic Inhibitor of the Keap1-Nrf2 Protein-Protein Interaction" (vol 65, pg 2204, 2022). Journal of Medicinal Chemistry, 66 (3), 2204-2204. doi: 10.1021/acs.jmedchem.3c00037
2022
Journal Article
Bimodal cell size and fusing cells observed in a clonal culture of the ciguatoxin-producing benthic dinoflagellate Gambierdiscus (WC1/1)
Holmes, Michael J. and Lewis, Richard J. (2022). Bimodal cell size and fusing cells observed in a clonal culture of the ciguatoxin-producing benthic dinoflagellate Gambierdiscus (WC1/1). Toxins, 14 (11) 767, 1-8. doi: 10.3390/toxins14110767
2022
Journal Article
The deadly toxin arsenal of the tree-dwelling Australian funnel-web spiders
Cardoso, Fernanda C., Pineda, Sandy S., Herzig, Volker, Sunagar, Kartik, Shaikh, Naeem Yusuf, Jin, Ai-Hua, King, Glenn F., Alewood, Paul F., Lewis, Richard J. and Dutertre, Sébastien (2022). The deadly toxin arsenal of the tree-dwelling Australian funnel-web spiders. International Journal of Molecular Sciences, 23 (21) 13077, 13077. doi: 10.3390/ijms232113077
2022
Journal Article
Synthesis of full-length homodimer αD-VxXXB that targets human α7 nicotinic acetylcholine receptors
Ho, Thao N. T., Abraham, Nikita and Lewis, Richard J. (2022). Synthesis of full-length homodimer αD-VxXXB that targets human α7 nicotinic acetylcholine receptors. RSC Medicinal Chemistry, 13 (11), 1410-1419. doi: 10.1039/d2md00188h
2022
Journal Article
Origin of ciguateric fish: quantitative modelling of the flow of ciguatoxin through a marine food chain
Holmes, Michael J. and Lewis, Richard J. (2022). Origin of ciguateric fish: quantitative modelling of the flow of ciguatoxin through a marine food chain. Toxins, 14 (8) 534, 1-11. doi: 10.3390/toxins14080534
2022
Journal Article
Diindolylmethane derivatives: new selective blockers for T-type calcium channels
Wang, Dan, Neupane, Pratik, Ragnarsson, Lotten, Capon, Robert and Lewis, Richard (2022). Diindolylmethane derivatives: new selective blockers for T-type calcium channels. Membranes, 12 (8) 749, 1-13. doi: 10.3390/membranes12080749
2022
Journal Article
The structural conformation of the tachykinin domain drives the anti‐tumoral activity of an octopus peptide in melanoma BRAF <sup>V600E</sup>
Moral‐Sanz, Javier, Fernandez‐Rojo, Manuel A., Colmenarejo, Gonzalo, Kurdyukov, Sergey, Brust, Andreas, Ragnarsson, Lotten, Andersson, Åsa, Vila, Sabela F., Cabezas‐Sainz, Pablo, Wilhelm, Patrick, Vela‐Sebastian, Ana, Fernández‐Carrasco, Isabel, Chin, Yanni K. Y., López‐ Mancheño, Yaiza, Smallwood, Taylor B., Clark, Richard J., Fry, Bryan G., King, Glenn F., Ramm, Grant A., Alewood, Paul F., Lewis, Richard J., Mulvenna, Jason P., Boyle, Glen M., Sanchez, Laura E., Neely, G. Gregory, Miles, John J. and Ikonomopoulou, Maria P. (2022). The structural conformation of the tachykinin domain drives the anti‐tumoral activity of an octopus peptide in melanoma BRAF V600E. British Journal of Pharmacology, 179 (20), 4878-4896. doi: 10.1111/bph.15923
2022
Journal Article
Editorial: Pharmacological Aspects of Ligand-Gated Ion Channels as Targets of Natural and Synthetic Agents
Mattei, César, Tricoire-Leignel, Hélène, Legros, Christian, Lewis, Richard J. and Molgó, Jordi (2022). Editorial: Pharmacological Aspects of Ligand-Gated Ion Channels as Targets of Natural and Synthetic Agents. Frontiers in Neuroscience, 16 895299, 895299. doi: 10.3389/fnins.2022.895299
Funding
Current funding
Past funding
Supervision
Availability
- Professor Richard Lewis is:
- Available for supervision
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Supervision history
Completed supervision
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2023
Doctor Philosophy
Origins and Evolution of Cone Snail Venom Systems
Principal Advisor
Other advisors: Dr Himaya Siddhihalu Wickrama Hewage
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2022
Doctor Philosophy
Sructure-Function and Rational Design of a Newly Discovered Spider Venom Peptide Ssp1a at hNaV1.2, hNaV1.3 and hNaV1.7
Principal Advisor
-
2022
Doctor Philosophy
Structure-function of atypical a-conotoxins and analogues at nicotinic acetylcholine receptor
Principal Advisor
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2021
Doctor Philosophy
Molecular pharmacology and peripheral analgesia of omega-conotoxins
Principal Advisor
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2020
Doctor Philosophy
Discovery and Characterisation of Venom Peptide and Small Molecule Modulators for T-type Calcium Channels
Principal Advisor
Other advisors: Dr Lotten Ragnarsson
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2018
Doctor Philosophy
Applying the conopeptide discovery pipeline to reveal the venom peptide complexity of the piscivorous cone snail, Conus tulipa
Principal Advisor
Other advisors: Dr Lotten Ragnarsson
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2016
Doctor Philosophy
Investigating nAChR structure and function using AChBP and alpha-conotoxins.
Principal Advisor
Other advisors: Dr Lotten Ragnarsson
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2016
Doctor Philosophy
Structure-function studies of norepinephrine and the allosteric inhibitor Chi-MrIA at the human norepinephrine transporter
Principal Advisor
Other advisors: Dr Lotten Ragnarsson
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2014
Doctor Philosophy
Discovery and characterization of NaV modulatory venom peptides
Principal Advisor
Other advisors: Professor Irina Vetter, Dr Lachlan Rash
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2014
Doctor Philosophy
Discovery and Characterisation of Novel Analgesic Neurotoxins, hCav2.2 Channel inhibitors, from Cone Snail and Spider Venoms
Principal Advisor
Other advisors: Professor Irina Vetter, Dr Lotten Ragnarsson
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2013
Doctor Philosophy
Pharmacological characterisation of alpha-conopeptides with therapeutic potential
Principal Advisor
Other advisors: Professor Irina Vetter
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2006
Doctor Philosophy
PROBING MEMBRANE PROTEIN STRUCTURES AND FUNCTIONS USING CONOPEPTIDES AND COMPUTATIONAL TOOLS
Principal Advisor
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2003
Doctor Philosophy
DEVELOPMENT OF DETECTION METHODOLOGIES FOR CIGUATOXINS
Principal Advisor
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2003
Doctor Philosophy
PROBING CALCIUM CHANNEL SELECTIVITY OF PEPTIDE TOXINS
Principal Advisor
Other advisors: Professor David Craik
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Doctor Philosophy
DISCOVERY AND CHARACTERISATION OF CONOPEPTIDE ANTAGONISTS OF NICOTINIC ACETYLCHOLINE RECEPTORS
Principal Advisor
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Master Philosophy
Characterisation of the Alpha1B-Adrenoceptor by Modeling, Dynamics and Virtual Screening
Principal Advisor
Other advisors: Dr Lotten Ragnarsson
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2020
Doctor Philosophy
Rational development of analgesics for the treatment of chronic pain: dissecting the molecular details of the interaction between gating modifier peptide modulators and human voltage-gated sodium channels
Associate Advisor
Other advisors: Professor Mehdi Mobli, Professor Glenn King
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2019
Doctor Philosophy
Expanding the Structural Atlas of Peptide Toxins
Associate Advisor
Other advisors: Associate Professor Richard Clark, Associate Professor Johan Rosengren
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2016
Master Philosophy
Venoms-based discovery of novel modulators of human neuronal ¿7 and ¿3* nicotinic acetylcholine receptors
Associate Advisor
Other advisors: Professor Glenn King
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2016
Doctor Philosophy
Using toxins to elucidate the role of voltage-gated sodium channels in pain
Associate Advisor
Other advisors: Professor Peter Cabot, Professor Irina Vetter
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2015
Doctor Philosophy
Discovery and characterisation of novel low molecular weight bioactive peptides from Australian elapid venom.
Associate Advisor
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2015
Doctor Philosophy
Synthesis of Peptide Dendrimers and Their Applications in Biomedicine
Associate Advisor
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2014
Doctor Philosophy
Large-scale Transcriptomic and Proteomic Data Mining of Conopeptides and Cysteine-rich Venom Toxins
Associate Advisor
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2013
Doctor Philosophy
Nutrient water quality parameters and their association with the abundance of ciguatera fish poisoning causitive dinoflagellates (microalgae) in tropical coral reef habitats
Associate Advisor
Other advisors: Dr Ron Johnstone
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2012
Doctor Philosophy
Characterization and SAR studies of Novel and Selected Alpha- and Mu-Conotoxins
Associate Advisor
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2009
Doctor Philosophy
Cytotoxic alkaloids from Australian sponges
Associate Advisor
Other advisors: Professor Rob Capon
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2009
Doctor Philosophy
Peptide Engineering--Controlling the folding of disulfide-rich peptides
Associate Advisor
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2004
Doctor Philosophy
MODULATION OF CALCIUM CHANNEL FUNCTION AND TOXIN SENSITIVITY BY AUXILIARY SUBUNITS
Joint Principal Advisor
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2006
Doctor Philosophy
CYSTEINE-RICH BIOACTIVE PEPTIDES: A STRUCTURAL AND BIOLOGICAL CHARACTERISATION OF TOXINS AND BIOACTIVE PEPTIDES
Associate Advisor
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2006
Doctor Philosophy
SYNTHESIS, STRUCTURE AND ACTIVITY OF DISULFIDE-RICH CONUS PEPTIDES
Associate Advisor
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2005
Doctor Philosophy
NOVEL TOXIN AND PROTEIN MODULATORS OF VOLTAGE-GATED ION CHANNELS
Associate Advisor
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2005
Doctor Philosophy
The Role of Group I Metabotropic Glutamate Receptors in Neuronal Excitotoxicity in Alzheimer's Disease
Associate Advisor
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2004
Doctor Philosophy
CONANTOKIN PROBES OF NMDA RECEPTORS IN MAMMALIAN CNS: IMPLICATIONS FOR ALZHEIMER'S DISEASE
Associate Advisor
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2003
Doctor Philosophy
THE CHEMICAL SYNTHESIS OF PROTEINS
Associate Advisor
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2003
Doctor Philosophy
STUDIES OF NOVEL DISULPHIDE BONDED CYCLIC PEPTIDES
Associate Advisor
Other advisors: Professor David Craik
Media
Enquiries
Contact Professor Richard Lewis directly for media enquiries about:
- Chronic pain
- ciguatera
- Cone snails
- conotoxin evolution
- conotoxins
- drug development
- fish poisoning
- ion channel modulation
- pain
- Pain - chronic
- pain treatment
- peptides
- Treatment of chronic pain
- venom
- Xenome
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