Evidence map›Paper›PMID 29049886›Full record

ArticleJournal of medicinal chemistry2017

Structure-Activity Relationship Studies of Pyrimido[5,4-b]indoles as Selective Toll-Like Receptor 4 Ligands.

Michael Chan, Yuhei Kakitsubata, Tomoko Hayashi, Alast Ahmadi, Shiyin Yao, Nikunj M Shukla, Shin-Ya Oyama, Akihito Baba, Brandon Nguyen, Maripat Corr and 4 more

Open access · greenAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

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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

14 authors at 2 institutions in 2 countries.

Michael ChanMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Yuhei KakitsubataDepartment of Chemistry, Kagoshima University , 1-21-40 Kohrimoto, 890-0065, Kagoshima, Japan.
Tomoko HayashiMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Alast AhmadiMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Shiyin YaoMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Nikunj M ShuklaMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.ORCID 0000-0002-5150-7827
Shin-Ya OyamaDepartment of Chemistry, Kagoshima University , 1-21-40 Kohrimoto, 890-0065, Kagoshima, Japan.
Akihito BabaDepartment of Chemistry, Kagoshima University , 1-21-40 Kohrimoto, 890-0065, Kagoshima, Japan.
Brandon NguyenMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Maripat CorrDepartment of Medicine, University of California, San Diego 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Yasuo SudaDepartment of Chemistry, Kagoshima University , 1-21-40 Kohrimoto, 890-0065, Kagoshima, Japan.
Dennis A CarsonMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.
Howard B CottamMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.ORCID 0000-0001-7382-0585
Masahiro WakaoMoores Cancer Center, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093-0695, United States.ORCID 0000-0003-2554-8825
University of California San Diego · USKagoshima University · JP

Funding

NIAID NIH HHS HHSN272200900034CNIAID NIH HHS HHSN272201400051C
6 · The paper itself

Abstract

Previous high throughput screening studies led to the discovery of two novel, nonlipid-like chemotypes as Toll-like receptor 4 (TLR4) agonists. One of these chemotypes, the pyrimido[5,4-b]indoles, was explored for structure-activity relationship trends relative to production of TLR4 dependent cytokines/chemokines, resulting in a semioptimized lead (compound 1) that provided a starting point for further optimization studies. In this report, compounds belonging to three areas of structural modification were evaluated for biological activity using murine and human TLR4 reporter cells, primary murine bone marrow derived dendritic cells, and human peripheral blood mononuclear cells. The compounds bearing certain aryl groups at the C8 position, such as phenyl (36) and β-naphthyl (39), had potencies significantly greater than compound 1. Compound 36 displayed human TLR4 agonist activity at submicromolar concentrations. The computational analysis suggests that the improved potency of these C8-aryl derivatives may be the result of additional binding interactions at the interface of the TLR4/myeloid differentiation protein-2 (MD-2) complex.

Indexed as

AnimalsHumansImmunologic FactorsIndolesLigandsMiceMolecular Docking SimulationPyrimidinesStructure-Activity RelationshipToll-Like Receptor 4Immunologic FactorsIndolesLigandsPyrimidinesToll-Like Receptor 4

Identifiers

PMID29049886
PMCPMC5940354
OpenAlexW2765330559

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.