Evidence map›Paper›PMID 33431808›Full record

ArticleOncogenesis2021

Feedback activation of STAT3 limits the response to PI3K/AKT/mTOR inhibitors in PTEN-deficient cancer cells.

Jian Wang, Xiaoye Lv, Xiutian Guo, Yanbo Dong, Peipei Peng, Fang Huang, Peng Wang, Haoqian Zhang, Jianguang Zhou, Youliang Wang and 3 more

Open access · goldAbstract read
In one paragraph

Article in Oncogenesis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing 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

37 citing papers in PubMed, 50 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

13 authors at 6 institutions in 2 countries.

Jian WangDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.ORCID http://orcid.org/0000-0003-3765-8861
Xiaoye LvDepartment of General Surgery, The General Hospital of People's Liberation Army, 100853, Beijing, China.
Xiutian GuoShanghai municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 200071, Shanghai, China.
Yanbo DongDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.
Peipei PengDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.
Fang HuangDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.
Peng WangDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.
Haoqian ZhangBinzhou Medical University, 264003, Yantai, China.
Jianguang ZhouDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.
Youliang WangDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China.ORCID http://orcid.org/0000-0003-1319-0344
Bo WeiDepartment of General Surgery, The General Hospital of People's Liberation Army, 100853, Beijing, China. weibo@vip.163.com.ORCID http://orcid.org/0000-0003-3758-2107
Zeng-Fu ShangState Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, China. zengfu.shang@suda.edu.cn.ORCID http://orcid.org/0000-0002-2396-1416
Shanhu LiDepartment of Cell Engineering, Beijing Institute of Biotechnology, 100850, Beijing, China. lish@bmi.ac.an.ORCID http://orcid.org/0000-0002-5400-6286
Binzhou Medical University · CNChinese General Hospital College of Nursing and Liberal Arts · PHChinese Institute for Brain Research · CNFourth People’s Hospital of Jinan · CNShanghai University of Traditional Chinese Medicine · CNSoochow University · CN

Funding

National Natural Science Foundation of China (National Science Foundation of China) 81672640National Natural Science Foundation of China (National Science Foundation of China) 81772750
6 · The paper itself

Abstract

The PI3K/AKT/mTOR signaling pathway is constitutively active in PTEN-deficient cancer cells, and its targeted inhibition has significant anti-tumor effects. However, the efficacy of targeted therapies is often limited due to drug resistance. The relevant signaling pathways in PTEN-deficient cancer cells treated with the PI3K/mTOR inhibitor BEZ235 were screened using a phosphokinase array, and further validated following treatment with multiple PI3K/AKT/mTOR inhibitors or AKT knockdown. The correlation between PTEN expression levels and STAT3 kinase phosphorylation in the tissue microarrays of gastric cancer patients was analyzed by immunohistochemistry. Cell proliferation and clonogenic assays were performed on the suitably treated PTEN-deficient cancer cells. Cytokine arrays, small molecule inhibition and knockdown assays were performed to identify related factors. PTEN-deficient tumor xenografts were established in nude mice that were treated with PI3K/AKT/mTOR and/or STAT3 inhibitors. PTEN deficiency was positively correlated with low STAT3 activity. PI3K/mTOR inhibitors increased the expression and secretion of macrophage migration inhibitory factor (MIF) and activated the JAK1/STAT3 signaling pathway. Both cancer cells and in vivo tumor xenografts showed that the combined inhibition of PI3K/AKT/mTOR and STAT3 activity enhanced the inhibitory effect of BEZ235 on the proliferation of PTEN-deficient cancer cells. Our findings provide a scientific basis for a novel treatment strategy in cancer patients with PTEN deficiency.

Identifiers

PMID33431808
PMCPMC7801611
OpenAlexW3119015308

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.