Evidence map›Paper›PMID 30802047›Full record

ArticleJournal of the American Chemical Society2019

Modular Total Synthesis and Cell-Based Anticancer Activity Evaluation of Ouabagenin and Other Cardiotonic Steroids with Varying Degrees of Oxygenation.

Hem Raj Khatri, Bijay Bhattarai, Will Kaplan, Zhongzheng Li, Marcus John Curtis Long, Yimon Aye, Pavel Nagorny

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 76 citations in OpenAlex.

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  15. From anOrganic letters · 2021
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  18. NaJournal of natural products · 2020
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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

7 authors at 3 institutions in 3 countries.

Hem Raj KhatriChemistry Department , University of Michigan , Ann Arbor , Michigan 48109 , United States.
Bijay BhattaraiChemistry Department , University of Michigan , Ann Arbor , Michigan 48109 , United States.ORCID 0000-0001-6972-1998
Will KaplanChemistry Department , University of Michigan , Ann Arbor , Michigan 48109 , United States.
Zhongzheng LiDepartment of Chemistry , Nankai University , Nankai 300071 , People's Republic of China.
Marcus John Curtis LongDepartment of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States.
Yimon AyeInstitute of Chemical Sciences and Engineering , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland.
Pavel NagornyChemistry Department , University of Michigan , Ann Arbor , Michigan 48109 , United States.ORCID 0000-0002-7043-984X
University of Michigan · USCornell University · USNankai University · CN

Funding

CELLULAR PHYSIOLOGY OF NEURONAL CIRCUITS IN NEOCORTEXR01NS025983 · NINDS · BROWN UNIVERSITY · PI CONNORS, BARRY W · 1988 to 2010
$3.0M
Deconvoluting Redox Biology with Targeted ChemistryDP2GM114850 · NIGMS · CORNELL UNIVERSITY · PI AYE, YIMON · 2014 to 2014
$2.3M
New methods and strategies for the synthesis of bioactive steroids and terpinoids SUPPLEMENTR01GM111476 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NAGORNY, PAVEL · 2014 to 2018
$1.5M
Zeiss LSM710 Confocal Microscope for Shared Imaging FacilityS10RR025502 · NCRR · CORNELL UNIVERSITY · PI WILLIAMS, REBECCA M · 2009 to 2009
$500k
NCRR NIH HHS S10 RR025502NIGMS NIH HHS DP2 GM114850NIGMS NIH HHS R01 GM111476NINDS NIH HHS R01 NS025983
6 · The paper itself

Abstract

A Cu(II)-catalyzed diastereoselective Michael/aldol cascade approach is used to accomplish concise total syntheses of cardiotonic steroids with varying degrees of oxygenation including cardenolides ouabagenin, sarmentologenin, 19-hydroxysarmentogenin, and 5- epi-panogenin. These syntheses enabled the subsequent structure activity relationship (SAR) studies on 37 synthetic and natural steroids to elucidate the effect of oxygenation, stereochemistry, C3-glycosylation, and C17-heterocyclic ring. Based on this parallel evaluation of synthetic and natural steroids and their derivatives, glycosylated steroids cannogenol-l-α-rhamnoside (79a), strophanthidol-l-α-rhamnoside (92), and digitoxigenin-l-α-rhamnoside (97) were identified as the most potent steroids demonstrating broad anticancer activity at 10-100 nM concentrations and selectivity (nontoxic at 3 μM against NIH-3T3, MEF, and developing fish embryos). Further analyses indicate that these molecules show a general mode of anticancer activity involving DNA-damage upregulation that subsequently induces apoptosis.

Indexed as

AnimalsAntineoplastic AgentsCell LineChemistry Techniques, SyntheticMiceOuabainOxygenStereoisomerismStructure-Activity RelationshipAntineoplastic AgentsouabageninOuabainOxygen

Identifiers

PMID30802047
PMCPMC6516474
OpenAlexW2916530362

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.