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Abstract
Voltage-gated sodium (NaV) channels are a family of transmembrane ion channel proteins. They function by forming a gated, water-filled pore to help establish and control cell membrane potential via control of the flow of ions between the intracellular and the extracellular environments. Blockade of NaVs has been successfully accomplished in the clinic to enable control of pathological firing patterns that occur in a diverse range of conditions such as chronic pain, epilepsy, and cardiac arrhythmias. First generation sodium channel modulator drugs, despite low inherent subtype selectivity, preferentially act on over-excited cells which reduces undesirable side effects in the clinic. However, the limited therapeutic indices observed with the first generation demanded a new generation of sodium channel inhibitors. The structure, function and the state of the art in sodium channel modulator drug discovery are discussed in this chapter.
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Affiliation(s)
- Sharan K Bagal
- a Worldwide Medicinal Chemistry; Pfizer ; Great Abington , Cambridge , UK
| | - Brian E Marron
- b Worldwide Medicinal Chemistry; Pfizer ; Durham , NC USA
| | - Robert M Owen
- a Worldwide Medicinal Chemistry; Pfizer ; Great Abington , Cambridge , UK
| | - R Ian Storer
- a Worldwide Medicinal Chemistry; Pfizer ; Great Abington , Cambridge , UK
| | - Nigel A Swain
- a Worldwide Medicinal Chemistry; Pfizer ; Great Abington , Cambridge , UK
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Bagal SK, Bungay PJ, Denton SM, Gibson KR, Glossop MS, Hay TL, Kemp MI, Lane CAL, Lewis ML, Maw GN, Million WA, Payne CE, Poinsard C, Rawson DJ, Stammen BL, Stevens EB, Thompson LR. Discovery and Optimization of Selective Nav1.8 Modulator Series That Demonstrate Efficacy in Preclinical Models of Pain. ACS Med Chem Lett 2015; 6:650-4. [PMID: 26101568 DOI: 10.1021/acsmedchemlett.5b00059] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 02/04/2015] [Accepted: 04/29/2015] [Indexed: 12/11/2022] Open
Abstract
Voltage-gated sodium channels, in particular Nav1.8, can be targeted for the treatment of neuropathic and inflammatory pain. Herein, we described the optimization of Nav1.8 modulator series to deliver subtype selective, state, and use-dependent chemical matter that is efficacious in preclinical models of neuropathic and inflammatory pain.
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Affiliation(s)
- Sharan K. Bagal
- Worldwide Medicinal Chemistry, Pfizer Neusentis, The Portway Building, Granta Park, Great Abington, Cambridge CB21 6GS, U.K
| | - Peter J. Bungay
- Neusentis U.K., Pfizer Global R&D, The Portway Building, Granta Park, Cambridge CB21 6GS, U.K
| | - Stephen M. Denton
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Karl R. Gibson
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Melanie S. Glossop
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Tanya L. Hay
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Mark I. Kemp
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | | | - Mark L. Lewis
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Graham N. Maw
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - William A. Million
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - C. Elizabeth Payne
- Neusentis U.K., Pfizer Global R&D, The Portway Building, Granta Park, Cambridge CB21 6GS, U.K
| | - Cedric Poinsard
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - David J. Rawson
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Blanda L. Stammen
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
| | - Edward B. Stevens
- Neusentis U.K., Pfizer Global R&D, The Portway Building, Granta Park, Cambridge CB21 6GS, U.K
| | - Lisa R. Thompson
- Worldwide Medicinal Chemistry, Pfizer Global R&D, Sandwich CT13 9NJ, U.K
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