Evidence map›Paper›PMID 27221589›Full record

ArticleScientific reports2016

Identification of Leishmania donovani Topoisomerase 1 inhibitors via intuitive scaffold hopping and bioisosteric modification of known Top 1 inhibitors.

Rajinikanth Mamidala, Papiya Majumdar, Kunal Kumar Jha, Chandramohan Bathula, Rahul Agarwal, M Thirumala Chary, Hemanta K Majumder, Parthapratim Munshi, Subhabrata Sen

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-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

9 citing papers in PubMed, 29 citations in OpenAlex.

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  9. Combinatorial chemistry in drug discovery.Current opinion in chemical biology · 2017
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Rajinikanth MamidalaDepartment of Chemistry, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500085, Telangana, India.
Papiya MajumdarInstitute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, West Bengal, India.
Kunal Kumar JhaDepartment of Chemistry, School of Natural Sciences, Shiv Nadar University, Chithera, Dadri, Gautam Buddha Nagar 201314, Uttar Pradesh, India.
Chandramohan BathulaDepartment of Chemistry, School of Natural Sciences, Shiv Nadar University, Chithera, Dadri, Gautam Buddha Nagar 201314, Uttar Pradesh, India.
Rahul AgarwalDepartment of Life Sciences, School of Natural Sciences, Shiv Nadar University, Chithera, Dadri, Gautam Buddha Nagar 201314, Uttar Pradesh, India.
M Thirumala CharyDepartment of Chemistry, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500085, Telangana, India.
Hemanta K MajumderInstitute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, West Bengal, India.
Parthapratim MunshiDepartment of Chemistry, School of Natural Sciences, Shiv Nadar University, Chithera, Dadri, Gautam Buddha Nagar 201314, Uttar Pradesh, India.
Subhabrata SenDepartment of Chemistry, School of Natural Sciences, Shiv Nadar University, Chithera, Dadri, Gautam Buddha Nagar 201314, Uttar Pradesh, India.
Shiv Nadar University · INIndian Institute of Chemical Biology · INJawaharlal Nehru Technological University, Hyderabad · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A library of arylidenefuropyridinediones was discovered as potent inhibitors of Leishmania donovani Topoisomerase 1 (LdTop1) where the active molecules displayed considerable inhibition with single digit micromolar EC50 values. This molecular library was designed via intuitive scaffold hopping and bioisosteric modification of known topoisomerase 1 inhibitors such as camptothecin, edotecarin and etc. The design was rationalized by molecular docking analysis of the compound prototype with human topoisomerase 1 (HTop1) and Leishmania donovani topoisomerase 1(LdTop1). The most active compound 4 displayed no cytotoxicity against normal mammalian COS7 cell line (~100 fold less inhibition at the EC50). Similar to camptothecin, 4 interacted with free LdTop1 as observed in the preincubation DNA relaxation inhibition experiment. It also displayed anti-protozoal activity against Leishmania donovani promastigote. Crystal structure investigation of 4 and its molecular modelling with LdTop1 revealed putative binding sites in the enzyme that could be harnessed to generate molecules with better potency.

Indexed as

DNA Topoisomerases, Type ILeishmaniasis, VisceralModels, MolecularProtozoan ProteinsTopoisomerase I InhibitorsAnimalsChlorocebus aethiopsCOS CellsCrystallography, X-RayLeishmania donovaniDNA Topoisomerases, Type IProtozoan ProteinsTopoisomerase I Inhibitors

Identifiers

PMID27221589
PMCPMC4879574
OpenAlexW2404554678

What OpenQuestion holds

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Registered trials

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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.