Evidence map›Paper›PMID 32221980›Full record

ArticlePhotochemistry and photobiology2020

Psoralen Derivatives with Enhanced Potency.

Alexandru D Buhimschi, David M Gooden, Hongwu Jing, Diane R Fels, Katherine S Hansen, Wayne F Beyer, Mark W Dewhirst, Harold Walder, Francis P Gasparro

Open access · greenAbstract read
In one paragraph

Article in Photochemistry and photobiology, 2020. 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
1.5field-weighted citation impact, top 18% 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, 38 citations in OpenAlex.

  1. Review
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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

9 authors at 6 institutions in 1 country.

Alexandru D BuhimschiMedical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL.ORCID 0000-0002-8951-7967
David M GoodenDepartment of Chemistry, Duke University, Durham, NC.
Hongwu JingDepartment of Obstetrics and Gynecology, University of Illinois College of Medicine, Chicago, IL.ORCID 0000-0002-9690-587X
Diane R FelsDepartment of Radiation Oncology, Duke University Medical Center, Durham, NC.
Katherine S HansenDepartment of Radiation Oncology, Duke University Medical Center, Durham, NC.
Wayne F BeyerImmunolight LLC, Detroit, MI.
Mark W DewhirstDepartment of Radiation Oncology, Duke University Medical Center, Durham, NC.
Harold WalderImmunolight LLC, Detroit, MI.
Francis P GasparroPhotobiology Laboratory, Hamden Hall Country Day School, Hamden, CT.ORCID 0000-0002-7941-5799
Duke Medical Center · USImmunolight (United States) · USDuke University · USGastroenterology Center of Connecticut · USIllinois College · USNorthwestern University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM008152 · NIGMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ARDEHALI, HOSSEIN · 1987 to 2021
$24.0M
NIGMS NIH HHS T32 GM008152
6 · The paper itself

Abstract

Psoralen is a furocoumarin natural product that intercalates within DNA and forms covalent adducts when activated by ultraviolet radiation. It is well known that this property contributes to psoralen's clinical efficacy in several disease contexts, which include vitiligo, psoriasis, graft-versus-host disease and cutaneous T-cell lymphoma. Given the therapeutic relevance of psoralen and its derivatives, we attempted to synthesize psoralens with even greater potency. In this study, we report a library of 73 novel psoralens, the largest collection of its kind. When screened for the ability to reduce cell proliferation, we identified two derivatives even more cytotoxic than 4'-aminomethyl-4,5',8-trimethylpsoralen (AMT), one of the most potent psoralens identified to date. Using MALDI-TOF MS, we studied the DNA adduct formation for a subset of novel psoralens and found that in most cases enhanced DNA binding correlated well with cytotoxicity. Generally, our most potent derivatives contain positively charged substituents, which we believe increase DNA affinity and enhance psoralen intercalation. Thus, we provide a rational approach to guide efforts toward further optimizing psoralens to fully capitalize on this drug class' therapeutic potential. Finally, the structure-activity insights we have gained shed light on several opportunities to study currently underappreciated aspects of psoralen's mechanism.

Indexed as

AnimalsCell Line, TumorDNADNA AdductsFurocoumarinsMiceSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationStructure-Activity RelationshipUltraviolet RaysDNADNA AdductsFurocoumarins

Identifiers

PMID32221980
PMCPMC7529704
OpenAlexW3013047223

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.