Evidence map›Paper›PMID 34326682›Full record

ArticleInternational journal of biological sciences2021

Cx43 deficiency confers EMT-mediated tamoxifen resistance to breast cancer via c-Src/PI3K/Akt pathway.

Deng-Pan Wu, Yan Zhou, Li-Xiang Hou, Xiao-Xiao Zhu, Wen Yi, Si-Man Yang, Tian-Yu Lin, Jin-Lan Huang, Bei Zhang, Xiao-Xing Yin

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in International journal of biological sciences, 2021. 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 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 53 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Deng-Pan WuJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Yan ZhouClinical Pharmacy, Jingjiang People's Hospital, 214500, Jingjiang City, Jiangsu Province, P.R. China.
Li-Xiang HouJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Xiao-Xiao ZhuJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Wen YiJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Si-Man YangScientific research center of traditional Chinese medicine, Guangxi University of Chinese Medicine, Nanning City, Guangxi Zhuang Autonomous Region, P.R. China.
Tian-Yu LinJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Jin-Lan HuangJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Bei ZhangDepartment of gynaecology and obstetrics, Xuzhou Central Hospital, 221009, Xuzhou City, Jiangsu Province, P.R. China.
Xiao-Xing YinJiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Pharmacy School of Xuzhou Medical University, Xuzhou City, Jiangsu Province, 221004, P.R. China.
Xuzhou Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tamoxifen (TAM) resistance has indicated a significant challenge during endocrine therapy for hormone-sensitive breast cancer. Thus, it is significant to elucidate the molecular events endowing TAM resistance to endocrine therapy. In this study, we found that epithelial-mesenchymal transition (EMT) was an important event to confer TAM resistance, and attenuating EMT by elevating connexin (Cx) 43 expression could reverse TAM resistance. Specifically, Cx43 overexpression improved TAM sensitivity, while Cx43 depletion facilitated TAM insensitivity by modulating EMT in T47D TAM-resistant and -sensitive cells, and transplanted xenografts. Importantly, we found a novel reciprocal regulation between Cx43 and c-Src/PI3K/Akt pathway contributing to EMT and TAM resistance in breast cancer. Moreover, we identified that Cx43 deficiency was significantly correlated with poor relapse-free survival in patients undergoing TAM treatment. Therefore, Cx43 represents a prognostic marker and an attractive target for breast cancer treatments. Therapeutic strategies designed to increase or maintain Cx43 function may be beneficial to overcome TAM resistance.

Indexed as

AnimalsAntineoplastic Agents, HormonalBreast NeoplasmsClass I Phosphatidylinositol 3-KinasesConnexin 43Drug Resistance, NeoplasmEpithelial-Mesenchymal TransitionFemaleHumansMCF-7 CellsMiceMice, Inbred BALB CMice, NudeProto-Oncogene Proteins c-aktSignal Transductionsrc-Family KinasesAKT1 protein, humanAntineoplastic Agents, HormonalClass I Phosphatidylinositol 3-KinasesConnexin 43GJA1 protein, humanPIK3CA protein, humanProto-Oncogene Proteins c-aktsrc-Family KinasesTamoxifenConnexin 43c-Src/PI3K/Akt pathwayepithelial-mesenchymal transitiontamoxifen resistance

Identifiers

PMID34326682
PMCPMC8315014
OpenAlexW3177423319

What OpenQuestion holds

Textmetadata
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.