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Coulter-Parkhill A, McClean S, Gault VA, Irwin N. Therapeutic Potential of Peptides Derived from Animal Venoms: Current Views and Emerging Drugs for Diabetes. Clin Med Insights Endocrinol Diabetes 2021; 14:11795514211006071. [PMID: 34621137 PMCID: PMC8491154 DOI: 10.1177/11795514211006071] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/10/2021] [Indexed: 12/13/2022] Open
Abstract
The therapeutic potential of venom-derived drugs is evident today. Currently, several significant drugs are FDA approved for human use that descend directly from animal venom products, with others having undergone, or progressing through, clinical trials. In addition, there is growing awareness of the important cosmeceutical application of venom-derived products. The success of venom-derived compounds is linked to their increased bioactivity, specificity and stability when compared to synthetically engineered compounds. This review highlights advancements in venom-derived compounds for the treatment of diabetes and related disorders. Exendin-4, originating from the saliva of Gila monster lizard, represents proof-of-concept for this drug discovery pathway in diabetes. More recent evidence emphasises the potential of venom-derived compounds from bees, cone snails, sea anemones, scorpions, snakes and spiders to effectively manage glycaemic control. Such compounds could represent exciting exploitable scaffolds for future drug discovery in diabetes, as well as providing tools to allow for a better understanding of cell signalling pathways linked to insulin secretion and metabolism.
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Affiliation(s)
| | | | - Victor A Gault
- Diabetes Research Group, Ulster University, Coleraine, UK
| | - Nigel Irwin
- Diabetes Research Group, Ulster University, Coleraine, UK
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Hsieh MH, Huang PT, Liou HH, Liang PH, Chen PM, Holt SA, Yu IF, James M, Shiau YS, Lee MT, Lin TL, Lou KL. The Penetration Depth for Hanatoxin Partitioning into the Membrane Hydrocarbon Core Measured with Neutron Reflectivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9036-9046. [PMID: 29986585 DOI: 10.1021/acs.langmuir.8b01076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hanatoxin (HaTx) from spider venom works as an inhibitor of Kv2.1 channels, most likely by interacting with the voltage sensor (VS). However, the way in which this water-soluble peptide modifies the gating remains poorly understood as the VS is deeply embedded within the bilayer, although it would change its position depending on the membrane potential. To determine whether HaTx can indeed bind to the VS, the depth at which HaTx penetrates into the POPC membranes was measured with neutron reflectivity. Our results successfully demonstrate that HaTx penetrates into the membrane hydrocarbon core (∼9 Å from the membrane surface), not lying on the membrane-water interface as reported for another voltage sensor toxin (VSTx). This difference in penetration depth suggests that the two toxins fix the voltage sensors at different positions with respect to the membrane normal, thereby explaining their different inhibitory effects on the channels. In particular, results from MD simulations constrained by our penetration data clearly demonstrate an appropriate orientation for HaTx to interact with the membranes, which is in line with the biochemical information derived from stopped-flow analysis through delineation of the toxin-VS binding interface.
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Affiliation(s)
- Meng-Hsuan Hsieh
- Membrane Protein Research Core, Center for Biotechnology , National Taiwan University , Taipei 10672 , Taiwan
- Institute of Biotechnology , National Taiwan University , Taipei 10672 , Taiwan
| | - Po-Tsang Huang
- Institute of Biochemistry and Molecular Biology , National Taiwan University , Taipei 10051 , Taiwan
- Graduate Institute of Oral Biology , National Taiwan University , Taipei 10048 , Taiwan
| | - Horng-Huei Liou
- Division of Neurology , National Taiwan University Hospital , Taipei 10002 , Taiwan
| | - Po-Huang Liang
- Institute of Biological Chemistry , Academia Sinica , Taipei 11529 , Taiwan
| | - Pei-Ming Chen
- Department of Electrical Engineering , National Taiwan University , Taipei 10617 , Taiwan
| | - Stephen A Holt
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC , New South Wales , Australia
| | - Isaac Furay Yu
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Michael James
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC , New South Wales , Australia
- The Australian Synchrotron , 800 Blackburn Road , Clayton , Victoria 3168 , Australia
| | - Yu-Shuan Shiau
- Membrane Protein Research Core, Center for Biotechnology , National Taiwan University , Taipei 10672 , Taiwan
| | - Ming-Tao Lee
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
- Department of Physics , National Central University , Jhongli 32001 , Taiwan
| | - Tsang-Lang Lin
- Department of Engineering and System Science , National Tsing-Hua University , Hsinchu 30013 , Taiwan
| | - Kuo-Long Lou
- Membrane Protein Research Core, Center for Biotechnology , National Taiwan University , Taipei 10672 , Taiwan
- Institute of Biotechnology , National Taiwan University , Taipei 10672 , Taiwan
- Institute of Biochemistry and Molecular Biology , National Taiwan University , Taipei 10051 , Taiwan
- Graduate Institute of Oral Biology , National Taiwan University , Taipei 10048 , Taiwan
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Hsieh MH, Shiau YS, Liou HH, Jeng US, Lee MT, Lou KL. Correction for "Measurement of Hanatoxin-Induced Membrane Thinning with Lamellar X-ray Diffraction". LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:726. [PMID: 29299910 DOI: 10.1021/acs.langmuir.7b04276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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