Evidence map›Paper›PMID 27744679›Full record

ArticleACS chemical neuroscience2017

Identification of the First Marine-Derived Opioid Receptor "Balanced" Agonist with a Signaling Profile That Resembles the Endorphins.

Tyler A Johnson, Laura Milan-Lobo, Tao Che, Madeline Ferwerda, Eptisam Lambu, Nicole L McIntosh, Fei Li, Li He, Nicholas Lorig-Roach, Phillip Crews and 1 more

Open access · greenAbstract read
In one paragraph

Article in ACS chemical neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

23 citing papers in PubMed, 43 citations in OpenAlex.

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  4. Form and function of actin impacts actin health and aging.bioRxiv : the preprint server for biology · 2025
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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

11 authors at 4 institutions in 1 country.

Tyler A JohnsonDepartment of Chemistry and Biochemistry, University of California , Santa Cruz, California 95064, United States.
Laura Milan-LoboDepartment of Neurology, University of California , San Francisco, California 94158, United States.
Tao CheNational Institute of Mental Health Psychoactive Drug Screening Program, University of North Carolina , Chapel Hill, North Carolina 27514, United States.
Madeline FerwerdaDepartment of Neurology, University of California , San Francisco, California 94158, United States.
Eptisam LambuDepartment of Natural Sciences and Mathematics, Dominican University of California , San Rafael, California 94901, United States.
Nicole L McIntoshDepartment of Natural Sciences and Mathematics, Dominican University of California , San Rafael, California 94901, United States.
Fei LiDepartment of Neurology, University of California , San Francisco, California 94158, United States.
Li HeDepartment of Neurology, University of California , San Francisco, California 94158, United States.
Nicholas Lorig-RoachDepartment of Chemistry and Biochemistry, University of California , Santa Cruz, California 95064, United States.
Phillip CrewsDepartment of Chemistry and Biochemistry, University of California , Santa Cruz, California 95064, United States.
Jennifer L WhistlerDepartment of Neurology, University of California , San Francisco, California 94158, United States.
University of California, San Francisco · USDominican University of California · USUniversity of California, Santa Cruz · USUniversity of North Carolina at Chapel Hill · US

Funding

NOVEL CYTOTOXIC NATURAL PRODUCTS FROM MARINE SPONGESR01CA047135 · NCI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI CREWS, PHIL, VALERIOTE, FREDERICK AUGUSTUS · 1989 to 2017
$8.1M
Trafficking and signaling of opioid receptor subtypes and heterodimersR01DA015232 · NIDA · ERNEST GALLO CLINIC AND RESEARCH CENTER · PI WHISTLER, JENNIFER L · 2003 to 2010
$2.0M
Role of opioid receptor trafficking in tolerance and dependenceR01DA019958 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WHISTLER, JENNIFER L · 2007 to 2011
$1.8M
Selectively Targeting Opioid Receptor HeterodimersR21DA031574 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ENGLAND, PAMELA MICHAEL, WHISTLER, JENNIFER L · 2011 to 2012
$424k
NCI NIH HHS R01 CA047135NIDA NIH HHS R01 DA015232NIDA NIH HHS R01 DA019958NIDA NIH HHS R21 DA031574
6 · The paper itself

Abstract

Opioid therapeutics are excellent analgesics, whose utility is compromised by dependence. Morphine (1) and its clinically relevant derivatives such as OxyContin (2), Vicodin (3), and Dilaudid (4) are "biased" agonists at the μ opioid receptor (OR), wherein they engage G protein signaling but poorly engage β-arrestin and the endocytic machinery. In contrast, endorphins, the endogenous peptide agonists for ORs, are potent analgesics, show reduced liability for tolerance and dependence, and engage both G protein and β-arrestin pathways as "balanced" agonists. We set out to determine if marine-derived alkaloids could serve as novel OR agonist chemotypes with a signaling profile distinct from morphine and more similar to the endorphins. Screening of 96 sponge-derived extracts followed by LC-MS-based purification to pinpoint the active compounds and subsequent evaluation of a mini library of related alkaloids identified two structural classes that modulate the ORs. These included the following: aaptamine (10), 9-demethyl aaptamine (11), demethyl (oxy)-aaptamine (12) with activity at the δ-OR (EC

Indexed as

Analgesics, OpioidNaphthyridinesAnimalsbeta-ArrestinsCarbolinesComputer SimulationCyclic AMPEndocytosisEndorphinsGTP-Binding ProteinsHEK293 CellsHumansIndolesIndolizinesLocomotionMaleaaptamineAnalgesics, Opioidbeta-ArrestinsCarbolinesCyclic AMPEndorphinsfascaplysineGTP-Binding ProteinsIndolesIndolizinesNaphthyridinesQuaternary Ammonium CompoundsReceptors, Opioid, deltaaaptaminebalanced agonismbiased agonismdependenceendorphinsfascaplysinG protein-coupled receptor (GPCR)opioidsignaling profiletolerance

Identifiers

PMID27744679
PMCPMC5352491
OpenAlexW2534798822

What OpenQuestion holds

Textmetadata
LicenceTDM
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.