Evidence map›Paper›PMID 22970136›Full record

ArticlePloS one2012

Novel levamisole derivative induces extrinsic pathway of apoptosis in cancer cells and inhibits tumor progression in mice.

Mahesh Hegde, Subhas S Karki, Elizabeth Thomas, Sujeet Kumar, Kuppusamy Panjamurthy, Somasagara R Ranganatha, Kanchugarakoppal S Rangappa, Bibha Choudhary, Sathees C Raghavan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 58 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

9 authors at 4 institutions in 1 country.

Mahesh HegdeDepartment of Biochemistry, Indian Institute of Science, Bangalore, Karnataka, India.
Subhas S Karki
Elizabeth Thomas
Sujeet Kumar
Kuppusamy Panjamurthy
Somasagara R Ranganatha
Kanchugarakoppal S Rangappa
Bibha Choudhary
Sathees C Raghavan
Indian Institute of Science Bangalore · INKLE University · INInstitute of Bioinformatics and Applied Biotechnology · INUniversity of Mysore · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLevamisole, an imidazo(2,1-b)thiazole derivative, has been reported to be a potential antitumor agent. In the present study, we have investigated the mechanism of action of one of the recently identified analogues, 4a (2-benzyl-6-(4'-fluorophenyl)-5-thiocyanato-imidazo[2,1-b][1], [3], [4]thiadiazole). MATERIALS AND

methodsROS production and expression of various apoptotic proteins were measured following 4a treatment in leukemia cell lines. Tumor animal models were used to evaluate the effect of 4a in comparison with Levamisole on progression of breast adenocarcinoma and survival. Immunohistochemistry and western blotting studies were performed to understand the mechanism of 4a action both ex vivo and in vivo.

resultsWe have determined the IC(50) value of 4a in many leukemic and breast cancer cell lines and found CEM cells most sensitive (IC(50) 5 µM). Results showed that 4a treatment leads to the accumulation of ROS. Western blot analysis showed upregulation of pro-apoptotic proteins t-BID and BAX, upon treatment with 4a. Besides, dose-dependent activation of p53 along with FAS, FAS-L, and cleavage of CASPASE-8 suggest that it induces death receptor mediated apoptotic pathway in CEM cells. More importantly, we observed a reduction in tumor growth and significant increase in survival upon oral administration of 4a (20 mg/kg, six doses) in mice. In comparison, 4a was found to be more potent than its parental analogue Levamisole based on both ex vivo and in vivo studies. Further, immunohistochemistry and western blotting studies indicate that 4a treatment led to abrogation of tumor cell proliferation and activation of apoptosis by the extrinsic pathway even in animal models.

conclusionThus, our results suggest that 4a could be used as a potent chemotherapeutic agent.

Indexed as

Disease ProgressionAnimalsApoptosisBiomarkers, TumorCell DeathCell Line, TumorCell ProliferationDNA DamageDose-Response Relationship, DrugDrug Screening Assays, AntitumorHumansLeukemiaLevamisoleMiceModels, BiologicalReactive Oxygen SpeciesBiomarkers, TumorLevamisoleReactive Oxygen Species

Identifiers

PMID22970136
PMCPMC3438185
OpenAlexW1989802325

What OpenQuestion holds

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LicenceCC BY
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.