Evidence map›Paper›PMID 31573734›Full record

ArticleCancer medicine2019

SIRT4 enhances the sensitivity of ER-positive breast cancer to tamoxifen by inhibiting the IL-6/STAT3 signal pathway.

Jilin Xing, Ji Li, Lin Fu, Junda Gai, Jingqian Guan, Qingchang Li

Open access · goldAbstract read
In one paragraph

Article in Cancer medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. Histone acetylation modulators in breast cancer.Breast cancer research : BCR · 2025
    Review
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  7. Article
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  9. The sirtuin family in health and disease.Signal transduction and targeted therapy · 2022
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  12. Article
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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

6 authors at 1 institution in 1 country.

Jilin XingDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.ORCID 0000-0003-0244-8143
Ji LiDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.
Lin FuDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.
Junda GaiDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.
Jingqian GuanDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.
Qingchang LiDepartment of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.ORCID 0000-0002-6317-7386
China Medical University · CN

Funding

Foundation of Liaoning Educational Committee L2015583National Natural Science Foundation of China 81672964National Natural Science Foundation of China 81702269National Natural Science Foundation of China 81874214
6 · The paper itself

Abstract

Recent advances in endocrine therapy have improved the prospects for estrogen receptor-positive breast cancer. Tamoxifen is an effective drug for patients with estrogen receptor-positive breast cancer, but the development of resistance is common. Therefore, discovering ways to enhance the sensitivity of cancer cells to tamoxifen may help improve breast cancer treatment. We studied the biological role of sirtuin 4 (SIRT4) in tamoxifen-treated MCF7 and T47D cells. The levels of the MYC proto-oncogene (MYC) and cyclin D1 (CCND1) were detected by western blotting and quantitative reverse transcription-polymerase chain reaction in breast cancer cells with SIRT4 overexpression or depletion. Immunofluorescence and western blotting were used to assess the phosphorylation status of signal transducer and activator of transcription 3 (STAT3). SIRT4 overexpression decreased the half maximal inhibitory concentration of tamoxifen in MCF7 and T47D cells, while its depletion increased it. Thus, SIRT4 enhances the sensitivity of breast cancer cells to tamoxifen. Moreover, western blotting revealed decreased STAT3 phosphorylation after SIRT4 transfection. The transcription and translation of MYC and CCND1, target genes of the STAT3 pathway, were also blocked. Immunofluorescence revealed that pathway activation and nuclear STAT4 translocation were suppressed when SIRT4 was overexpressed. Furthermore, the effects of SIRT4 overexpression or depletion on proliferation could be offset by STAT3 activation or inhibition. Taken together, these results demonstrate that SIRT4 enhances the tamoxifen sensitivity of breast cancer cells by inhibiting the STAT3 signaling pathway. With this knowledge, therapeutic strategies with reduced drug resistance risk may be developed.

Indexed as

Interleukin-6 InhibitorsReceptors, EstrogenAntineoplastic Agents, HormonalBreast NeoplasmsCell Line, TumorCyclin D1FemaleHumansInterleukin-6Mitochondrial ProteinsProto-Oncogene MasProto-Oncogene Proteins c-mycSignal TransductionSirtuinsSTAT3 Transcription FactorTamoxifenAntineoplastic Agents, HormonalCCND1 protein, humanCyclin D1IL6 protein, humanInterleukin-6Interleukin-6 InhibitorsMAS1 protein, humanMitochondrial ProteinsMYC protein, humanProto-Oncogene MasProto-Oncogene Proteins c-mycReceptors, EstrogenSIRT4 protein, humanSirtuinsSTAT3 protein, humanSTAT3 Transcription FactorTamoxifenCCND1MYCSIRT4STAT3tamoxifen

Identifiers

PMID31573734
PMCPMC6853819
OpenAlexW2977503511

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.