↓ Skip to main content

Immunohistochemical ATRX expression is not a surrogate for 1p19q codeletion

Overview of attention for article published in Brain Tumor Pathology, March 2018
Altmetric Badge

Mentioned by

twitter
1 X user

Citations

dimensions_citation
16 Dimensions

Readers on

mendeley
21 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Immunohistochemical ATRX expression is not a surrogate for 1p19q codeletion
Published in
Brain Tumor Pathology, March 2018
DOI 10.1007/s10014-018-0312-5
Pubmed ID
Authors

Akane Yamamichi, Fumiharu Ohka, Kosuke Aoki, Hiromichi Suzuki, Akira Kato, Masaki Hirano, Kazuya Motomura, Kuniaki Tanahashi, Lushun Chalise, Sachi Maeda, Toshihiko Wakabayashi, Yukinari Kato, Atsushi Natsume

Abstract

The IDH-mutant and 1p/19q co-deletion (1p19q codel) provides significant diagnostic and prognostic value in lower-grade gliomas. As ATRX mutation and 1p19q codel are mutually exclusive, ATRX immunohistochemistry (IHC) may substitute for 1p19q codel, but this has not been comprehensively examined. In the current study, we performed ATRX-IHC in 78 gliomas whose ATRX statuses were comprehensively determined by whole exome sequencing. Among the 60 IHC-positive and 18 IHC-negative cases, 86.7 and 77.8% were ATRX-wildtype and ATRX-mutant, respectively. ATRX mutational patterns were not consistent with ATRX-IHC. If our cohort had only used IDH status and IHC-based ATRX expression for diagnosis, 78 tumors would have been subtyped as 48 oligodendroglial tumors, 16 IDH-mutant astrocytic tumors, and 14 IDH-wildtype astrocytic tumors. However, when the 1p19q codel test was performed following ATRX-IHC, 8 of 48 ATRX-IHC-positive tumors were classified as "1p19q non-codel" and 3 of 16 ATRX-IHC-negative tumors were classified as "1p19q codel"; a total of 11 tumors (14%) were incorrectly classified. In summary, we observed dissociation between ATRX-IHC and actual 1p19q codel in 11 of 64 IDH-mutant LGGs. In describing the complex IHC expression of ATRX somatic mutations, our results indicate the need for caution when using ATRX-IHC as a surrogate of 1p19q status.

X Demographics

X Demographics

The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 21 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 21 100%

Demographic breakdown

Readers by professional status Count As %
Other 3 14%
Researcher 3 14%
Professor > Associate Professor 3 14%
Student > Ph. D. Student 2 10%
Student > Doctoral Student 1 5%
Other 3 14%
Unknown 6 29%
Readers by discipline Count As %
Medicine and Dentistry 7 33%
Biochemistry, Genetics and Molecular Biology 2 10%
Neuroscience 2 10%
Computer Science 1 5%
Agricultural and Biological Sciences 1 5%
Other 0 0%
Unknown 8 38%
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 22 March 2018.
All research outputs
#20,469,520
of 23,028,364 outputs
Outputs from Brain Tumor Pathology
#117
of 170 outputs
Outputs of similar age
#317,124
of 359,612 outputs
Outputs of similar age from Brain Tumor Pathology
#8
of 10 outputs
Altmetric has tracked 23,028,364 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 170 research outputs from this source. They receive a mean Attention Score of 1.7. 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 359,612 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 10 others from the same source and published within six weeks on either side of this one. This one has scored higher than 2 of them.