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Epigenetic silencing of serine protease HTRA1 drives polyploidy

Overview of attention for article published in BMC Cancer, July 2016
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Title
Epigenetic silencing of serine protease HTRA1 drives polyploidy
Published in
BMC Cancer, July 2016
DOI 10.1186/s12885-016-2425-8
Pubmed ID
Authors

Nina Schmidt, Inga Irle, Kamilla Ripkens, Vanda Lux, Jasmin Nelles, Christian Johannes, Lee Parry, Kirsty Greenow, Sarah Amir, Mara Campioni, Alfonso Baldi, Chio Oka, Masashi Kawaichi, Alan R. Clarke, Michael Ehrmann

Abstract

Increased numbers and improperly positioned centrosomes, aneuploidy or polyploidy, and chromosomal instability are frequently observed characteristics of cancer cells. While some aspects of these events and the checkpoint mechanisms are well studied, not all players have yet been identified. As the role of proteases other than the proteasome in tumorigenesis is an insufficiently addressed question, we investigated the epigenetic control of the widely conserved protease HTRA1 and the phenotypes of deregulation. Mouse embryonal fibroblasts and HCT116 and SW480 cells were used to study the mechanism of epigenetic silencing of HTRA1. In addition, using cell biological and genetic methods, the phenotypes of downregulation of HTRA1 expression were investigated. HTRA1 is epigenetically silenced in HCT116 colon carcinoma cells via the epigenetic adaptor protein MBD2. On the cellular level, HTRA1 depletion causes multiple phenotypes including acceleration of cell growth, centrosome amplification and polyploidy in SW480 colon adenocarcinoma cells as well as in primary mouse embryonic fibroblasts (MEFs). Downregulation of HTRA1 causes a number of phenotypes that are hallmarks of cancer cells suggesting that the methylation state of the HtrA1 promoter may be used as a biomarker for tumour cells or cells at risk of transformation.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 30 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 30 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 33%
Researcher 6 20%
Student > Bachelor 3 10%
Professor 2 7%
Student > Master 2 7%
Other 4 13%
Unknown 3 10%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 12 40%
Agricultural and Biological Sciences 6 20%
Medicine and Dentistry 4 13%
Neuroscience 2 7%
Economics, Econometrics and Finance 1 3%
Other 2 7%
Unknown 3 10%
Attention Score in Context

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 09 July 2016.
All research outputs
#18,465,704
of 22,880,230 outputs
Outputs from BMC Cancer
#5,440
of 8,325 outputs
Outputs of similar age
#271,100
of 355,364 outputs
Outputs of similar age from BMC Cancer
#149
of 255 outputs
Altmetric has tracked 22,880,230 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 8,325 research outputs from this source. They receive a mean Attention Score of 4.3. This one is in the 21st percentile – i.e., 21% 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 355,364 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 13th percentile – i.e., 13% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 255 others from the same source and published within six weeks on either side of this one. This one is in the 29th percentile – i.e., 29% of its contemporaries scored the same or lower than it.