Evidence map›Paper›PMID 30587447›Full record

ArticleBioorganic & medicinal chemistry letters2019

Analysis of chain length, substitution patterns, and unsaturation of AM-404 derivatives as 20S proteasome stimulators.

Rachel A Coleman, Christine S Muli, Yizhou Zhao, Atul Bhardwaj, Timothy R Newhouse, Darci J Trader

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 20% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Oleanolic Acid Amide Derivatives as 20s Proteasome Stimulators.Chembiochem : a European journal of chemical biology · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. New Peptide-Based Pharmacophore Activates 20S Proteasome.Molecules (Basel, Switzerland) · 2020
    Article
  14. Proteasome Activation to Combat Proteotoxicity.Molecules (Basel, Switzerland) · 2019
    Review
  15. Review
  16. Review
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

6 authors at 2 institutions in 1 country.

Rachel A ColemanDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 W. Stadium Ave, West Lafayette, IN 47907, United States.
Christine S MuliDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 W. Stadium Ave, West Lafayette, IN 47907, United States.
Yizhou ZhaoDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520-8107, United States.
Atul BhardwajDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 W. Stadium Ave, West Lafayette, IN 47907, United States.
Timothy R NewhouseDepartment of Chemistry, Yale University, 225 Prospect Street, New Haven, CT 06520-8107, United States.
Darci J TraderDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 W. Stadium Ave, West Lafayette, IN 47907, United States. Electronic address: dtrader@purdue.edu.
Purdue University West Lafayette · USYale University · US

Funding

Transgenic Mouse Core Facility Shared Resource (TMCF-SR)P30CA023168 · NCI · PURDUE UNIVERSITY WEST LAFAYETTE · PI John Tesmer · 1985 to 2026
$43.4M
NCI NIH HHS P30 CA023168
6 · The paper itself

Abstract

Proteasome-mediated degradation of proteins is a vital cellular process and is performed by the ubiquitin-dependent proteasome system (UPS) and the ubiquitin-independent proteasome system (UIPS). While both systems are necessary to maintain healthy cell function, many disease states are characterized by reduced activity of the UPS, and the UIPS cannot by itself maintain proper protein levels. It has been suggested that the 20S core particle (20S CP), the isoform of the proteasome in the UIPS that can degrade proteins without a ubiquitin tag, can be stimulated with a small molecule to assist the 20S CP to accept and hydrolyze substrates more rapidly. Several small molecule stimulators of the 20S CP have since been discovered, including AM-404, an arachidonic acid derivative. AM-404 has previously been shown to inhibit fatty acid amide hydrolase activity. We wished to evaluate what structural components of AM-404 are required to stimulate the 20S CP with the long-term goal of using this information to design a stimulator with better drug-like qualities. We synthesized numerous derivatives of AM-404, varying the chain length, substitutions, and degree of unsaturation. Through this endeavor, we obtained several molecules capable of stimulating the 20S CP to various degrees. We discovered that though chain length is important, the presence of a cis-alkene in a specific location in the aliphatic chain has the greatest impact on the ability to stimulate the 20S CP. Two of the derivatives maintain modest stimulatory activity, and have improved toxicity over AM-404.

Indexed as

Arachidonic AcidsCell SurvivalDose-Response Relationship, DrugHEK293 CellsHumansMolecular StructureProteasome Endopeptidase ComplexStructure-Activity RelationshipArachidonic AcidsN-(4-hydroxyphenyl)arachidonylamideProteasome Endopeptidase ComplexAM-404ProteasomeStimulatorSynthesis

Identifiers

PMID30587447
PMCPMC6348054
OpenAlexW2905309234

What OpenQuestion holds

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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.