Evidence map›Paper›PMID 36419768›Full record

ArticleFrontiers in endocrinology2022

JMJD6 orchestrates a transcriptional program in favor of endocrine resistance in ER+ breast cancer cells.

Partha Das, Aritra Gupta, Kartiki V Desai

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Article in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Partha DasNational Institute of Biomedical Genomics, P.O.N.S.S, Kalyani, India.
Aritra GuptaNational Institute of Biomedical Genomics, P.O.N.S.S, Kalyani, India.
Kartiki V DesaiNational Institute of Biomedical Genomics, P.O.N.S.S, Kalyani, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

High expression of Jumonji domain containing protein 6 (JMJD6) is strongly associated with poor prognosis in estrogen receptor positive (ER+) breast cancer. We overexpressed JMJD6 in MCF7 cells (JOE cells) and performed RNA-seq analysis. 76% of differentially expressed genes (DEGs) overlapped with ER target genes. Pathway analysis revealed that JMJD6 upregulated a larger subset of genes related to cell proliferation as compared to ER. Interestingly, JOE cells showed a decrease in ER target gene expression prompting us to check ER levels. Indeed, JOE cells showed a significant decrease in both ESR1 and ER levels and JMJD6 siRNA transfection increased the expression of both. Additionally, JOE cells showed increased RET and ERK1 expression, events associated with resistance to endocrine therapy. Accordingly, JOE cells displayed lower sensitivity and survived better at higher doses of 4-hydroxy tamoxifen (Tam) as compared to parental MCF-7 cells. Conversely, LTED-I and TAM R that resist Tam induced death, showed high expression of JMJD6. Further, JMJD6 siRNA treatment decreased growth and improved Tam sensitivity in TAM R. Comparison of JOE DEGs with known Tam signature genes showed a substantial overlap. Overall, these data suggest that blocking ER alone in patients may not eradicate proliferation of JMJD6 expressing ER+ cells and JMJD6 may predispose and sustain endocrine therapy resistance. We propose that immunostaining for JMJD6 could be developed as a potential marker for predicting endocrine therapy resistance. Further, antagonizing JMJD6 action in women expressing higher amounts of this protein, may offer a greater clinical benefit than endocrine therapy.

Indexed as

Breast NeoplasmsDrug Resistance, NeoplasmEstrogen Receptor alphaFemaleGene Expression Regulation, NeoplasticHumansJumonji Domain-Containing Histone DemethylasesRNA, Small InterferingEstrogen Receptor alphaJMJD6 protein, humanJumonji Domain-Containing Histone DemethylasesRNA, Small Interferingestrogen receptorMAPK pathwayRETRNA-seqTamoxifen

Identifiers

PMID36419768
PMCPMC9678079

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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.