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Inhibition of EGR1 inhibits glioma proliferation by targeting CCND1 promoter

Overview of attention for article published in Journal of Experimental & Clinical Cancer Research, December 2017
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Title
Inhibition of EGR1 inhibits glioma proliferation by targeting CCND1 promoter
Published in
Journal of Experimental & Clinical Cancer Research, December 2017
DOI 10.1186/s13046-017-0656-4
Pubmed ID
Authors

Dian-gang Chen, Bo Zhu, Sheng-qing Lv, Hongfan Zhu, Jinliang Tang, Changlin Huang, Qingrui Li, Pu Zhou, Dong-lin Wang, Guang-hui Li

Abstract

Gliomas are the most common primary tumors in central nervous system. The prognosis of the patients with glioma is poor regardless of the development of therapeutic strategies. Its aggressive behavior mainly depends on the potent ability of proliferation. The transcription factor EGR1 (early growth response 1) is a member of a zinc finger transcription factor family which plays an essential role in cell growth and proliferation. EGR1 expression levels in 39 glioma tissues and 10 normal brain tissues were tested by RT-qPCR and Western-blotting. The effects of EGR1 on U251 cells, U251 stem-like cells (GSCs), and U87 cells proliferation were assessed using in vitro and in vivo cell proliferation assays. The specific binding between EGR1 and CCND1 promoter was confirmed by CHIP assay. EGF was used to improve EGR1 expression in this assay. EGR1 expression levels in human gliomas are decreased compared with normal brain tissues, however, the patients with low EGR1 expression level showed significantly enhanced patient survival in all glioma patients. EGR1 silencing inhibited proliferation and induced G1 phase arrest in glioma cells. EGR1 contributed to proliferation by directly raising CCND1. Meanwhile, EGR1 overexpression induced by EGF was able to promote the proliferation of glioma cells. Our results show that stable knockdown EGR1 would inhibit glioma proliferation. The results suggest EGR1 showing lower expression in cancer tissues compared with normal tissues maybe still play an important role in tumor proliferation.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 18 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 18 100%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 4 22%
Student > Ph. D. Student 3 17%
Researcher 2 11%
Professor 1 6%
Student > Bachelor 1 6%
Other 3 17%
Unknown 4 22%
Readers by discipline Count As %
Medicine and Dentistry 4 22%
Biochemistry, Genetics and Molecular Biology 4 22%
Agricultural and Biological Sciences 2 11%
Pharmacology, Toxicology and Pharmaceutical Science 1 6%
Neuroscience 1 6%
Other 0 0%
Unknown 6 33%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 December 2017.
All research outputs
#13,299,819
of 15,059,695 outputs
Outputs from Journal of Experimental & Clinical Cancer Research
#867
of 1,143 outputs
Outputs of similar age
#338,887
of 403,357 outputs
Outputs of similar age from Journal of Experimental & Clinical Cancer Research
#81
of 112 outputs
Altmetric has tracked 15,059,695 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,143 research outputs from this source. They receive a mean Attention Score of 2.7. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 403,357 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 112 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.