Evidence map›Paper›PMID 31219560›Full record

ArticleCarcinogenesis2020

BRCA1 promoter hypermethylation in human placenta: a hidden link with β-hCG expression.

Revathy Nadhan, Jayashree Vijaya Vaman, Satheesh Kumar Sengodan, Sreelatha Krishnakumar Hemalatha, Nirmala Chellappan, Santha Sadasivan, Aysha Pasuthottiyil Varkey, Sreelekha Yesodharan, Krishnapriya Raji Sathyanpillai, Amritha Krishna Bhuvaneswari Venugopal and 9 more

Open access · bronzeAbstract read
In one paragraph

Article in Carcinogenesis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
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  3. Article
  4. Article
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

19 authors at 6 institutions in 2 countries.

Revathy NadhanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Jayashree Vijaya VamanDepartment of Obstetrics and Gynecology, SAT Hospital, Government Medical College, Thiruvananthapuram, Kerala, India.
Satheesh Kumar SengodanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Sreelatha Krishnakumar HemalathaCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Nirmala ChellappanDepartment of Obstetrics and Gynecology, SAT Hospital, Government Medical College, Thiruvananthapuram, Kerala, India.
Santha SadasivanDepartment of Pathology, Government Medical College, Thiruvananthapuram, Kerala, India.
Aysha Pasuthottiyil VarkeyDepartment of Obstetrics and Gynecology, PRS Hospital, Thiruvananthapuram, Kerala, India.
Sreelekha YesodharanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Krishnapriya Raji SathyanpillaiCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Amritha Krishna Bhuvaneswari VenugopalCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Sreevidya Prameelakumari SreenivasanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Arathi RajanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Neetha Rajan LathaCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Geetu Rose VargheseCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Ratheeshkumar ThankappanCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Sarada AchyutuniCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Jithin Dev Sreekumar UshaCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Thapasimuthu Vijayamma AnilkumarDepartment of Experimental Pathology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
Priya SrinivasCancer Research Program 6, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.
Rajiv Gandhi Centre for Biotechnology · INGovernment Medical College · INGovernment Medical College and Hospital · INCenter for Cancer Research · USParas Hospitals · INSree Chitra Thirunal Institute for Medical Sciences and Technology · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gestational trophoblastic diseases (GTD) are group of pregnancy-related tumors characterized by abnormal levels of 'β-hCG' with higher incidence in South-East Asia, especially India. Our laboratory has reported that wild-type BRCA1 transcriptionally regulates β-hCG in triple negative breast cancers (TNBCs). These factors culminated into analysis of BRCA1 status in GTD, which would emanate into elucidation of BRCA1- β-hCG relationship and unraveling etio-pathology of GTD. BRCA1 level in GTD is down-regulated due to the over-expression of DNMT3b and subsequent promoter hypermethylation, when compared to the normal placentae accompanied with its shift in localization. There is an inverse correlation of serum β-hCG levels with BRCA1 mRNA expression. The effects of methotrexate (MTX), which is the first-line chemotherapeutic used for GTD treatment, when analyzed in comparison with plumbagin (PB) revealed that PB alone is efficient than MTX alone or MTX-PB in combination, in showing selective cytotoxicity against GTD. Interestingly, PB increases BRCA1 levels post-treatment, altering DNMT3b levels and resultant BRCA1 promoter methylation. Also, cohort study analyzed the incidence of GTD at Sree Avittom Thirunal (SAT) Hospital, Thiruvananthapuram, which points out that 11.5% of gestational trophoblastic neoplasia (GTN) cases were referred to Regional Cancer Centre, Thiruvananthapuram, for examination of breast lumps. This has lend clues to supervene the risk of GTD patients towards BRCA1-associated diseases and unveil novel therapeutic for GTD, a plant-derived naphthoquinone, PB, already reported as selectively cytotoxic against BRCA1 defective tumors.

Indexed as

DNA MethylationMutationPromoter Regions, GeneticAdultAntineoplastic AgentsApoptosisBiomarkers, TumorBRCA1 ProteinBRCA2 ProteinCell ProliferationChorionic Gonadotropin, beta Subunit, HumanCohort StudiesFemaleGene Expression Regulation, NeoplasticGestational Trophoblastic DiseaseHumansAntineoplastic AgentsBiomarkers, TumorBRCA1 ProteinBRCA1 protein, humanBRCA2 ProteinBRCA2 protein, humanChorionic Gonadotropin, beta Subunit, Human

Identifiers

PMID31219560
PMCPMC7456346
OpenAlexW2951307707

What OpenQuestion holds

Textmetadata
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.