Evidence map›Paper›PMID 27129258›Full record

ArticleThe Journal of biological chemistry2016

Engineering Highly Potent and Selective Microproteins against Nav1.7 Sodium Channel for Treatment of Pain.

Anatoly Shcherbatko, Andrea Rossi, Davide Foletti, Guoyun Zhu, Oren Bogin, Meritxell Galindo Casas, Mathias Rickert, Adela Hasa-Moreno, Victor Bartsevich, Andreas Crameri and 7 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Article
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  9. Review
  10. Review
  11. Engineering of a Spider PeptideFrontiers in molecular biosciences · 2021
    Article
  12. Review
  13. Review
  14. Article
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  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors at 3 institutions in 1 country.

Anatoly ShcherbatkoRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Andrea RossiRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Davide FolettiRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Guoyun ZhuRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Oren BoginAmunix, Mountain View, California 94043.
Meritxell Galindo CasasRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Mathias RickertRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Adela Hasa-MorenoRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Victor BartsevichAmunix, Mountain View, California 94043.
Andreas CrameriAmunix, Mountain View, California 94043.
Alexander R SteinerSutro Biopharma, South San Francisco, California 94080.
Robert HenningsenSutro Biopharma, South San Francisco, California 94080.
Avinash GillSutro Biopharma, South San Francisco, California 94080.
Jaume PonsRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
David L SheltonRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Arvind RajpalRinat Laboratories, Pfizer Inc., South San Francisco, California 94080.
Pavel StropRinat Laboratories, Pfizer Inc., South San Francisco, California 94080,. Electronic address: pavel.strop@bms.com.
Pfizer (United States) · USAmunix (United States) · USSutro Biopharma (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The prominent role of voltage-gated sodium channel 1.7 (Nav1.7) in nociception was revealed by remarkable human clinical and genetic evidence. Development of potent and subtype-selective inhibitors of this ion channel is crucial for obtaining therapeutically useful analgesic compounds. Microproteins isolated from animal venoms have been identified as promising therapeutic leads for ion channels, because they naturally evolved to be potent ion channel blockers. Here, we report the engineering of highly potent and selective inhibitors of the Nav1.7 channel based on tarantula ceratotoxin-1 (CcoTx1). We utilized a combination of directed evolution, saturation mutagenesis, chemical modification, and rational drug design to obtain higher potency and selectivity to the Nav1.7 channel. The resulting microproteins are highly potent (IC50 to Nav1.7 of 2.5 nm) and selective. We achieved 80- and 20-fold selectivity over the closely related Nav1.2 and Nav1.6 channels, respectively, and the IC50 on skeletal (Nav1.4) and cardiac (Nav1.5) sodium channels is above 3000 nm The lead molecules have the potential for future clinical development as novel therapeutics in the treatment of pain.

Indexed as

Protein EngineeringHEK293 CellsHumansNAV1.7 Voltage-Gated Sodium ChannelPain ManagementPatch-Clamp TechniquesPhylogenySpider VenomsVoltage-Gated Sodium Channel BlockersNAV1.7 Voltage-Gated Sodium ChannelSpider VenomsVoltage-Gated Sodium Channel Blockersceratotoxindirected evolutionengineeringNav1.7painsodium channelstructure-functiontoxin

Identifiers

PMID27129258
PMCPMC4933158
OpenAlexW2341637861

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.