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Interleukin-15 receptor α on hepatic stellate cells regulates hepatic fibrogenesis in mice

Overview of attention for article published in Journal of Hepatology, May 2016
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (89th percentile)
  • Good Attention Score compared to outputs of the same age and source (69th percentile)

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27 X users
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Title
Interleukin-15 receptor α on hepatic stellate cells regulates hepatic fibrogenesis in mice
Published in
Journal of Hepatology, May 2016
DOI 10.1016/j.jhep.2016.04.020
Pubmed ID
Authors

Jingjing Jiao, Kohtaro Ooka, Holger Fey, Maria Isabel Fiel, Adeeb H. Rahmman, Kensuke Kojima, Yujin Hoshida, Xintong Chen, Tatiana de Paula, Diana Vetter, David Sastre, Ka Hin Lee, Youngmin A. Lee, Meena Bansal, Scott L. Friedman, Miriam Merad, Costica Aloman

Abstract

Interleukin-15 (IL-15) and its high affinity receptor interleukin-15 receptor alpha (IL-15Rα) are widely expressed in immune cells and hepatic resident cells. IL-15 signaling has important functions in homeostasis of natural killer (NK), natural killer T (NKT) and cytotoxic T (CD8+T) cells, and in liver regeneration. We hypothesized that IL-15 has a protective role in liver fibrosis progression by maintaining NK cell homeostasis. Fibrosis was induced using two mechanistically distinct models. Congenic bone marrow transplantation was used to evaluate the contribution of IL-15 signaling from various compartments to NK, CD8+T and NKT cell homeostasis and fibrogenesis. The gene expression profile of hepatic stellate cell (HSC) from IL-15Rα knockout (IL-15RαKO) mice and wild type mice were captured using microarray analysis and validated in isolated HSC. Quantitative real-time PCR was used to assess repressors of collagen transcription. IL-15RαKO mice exhibited more fibrosis in both models. IL-15 signaling from specific types of hepatic cells had divergent roles in maintaining liver NK, CD8+T and NKT cells, with a direct and protective role on radio-resistant non-parenchymal cells beyond the control of NK homeostasis. HSCs isolated from IL-15RαKO mice demonstrated up-regulation of collagen production. Finally, IL-15RαKO HSC with or without transforming growth factor beta (TGF-β) stimulation exhibited increased expression of fibrosis markers and decreased collagen transcription repressors expression. IL-15Rα signaling has a direct anti-fibrotic effect independent of preserving NK homeostasis. These findings establish a rationale to further explore the anti-fibrotic potential of enhancing IL-15 signaling in HSCs. We investigated how a cellular protein, Interleukin-15 (IL-15), decreases the amount of scar tissue that is formed upon liver injury. We found that IL-15 and its receptor decreases the amount of scar tissue that is created by specialized liver cells (called stellate cells) and increases the number of a specific subgroup of immune cells (natural killer cells) that are known to eliminate stellate cells.

X Demographics

X Demographics

The data shown below were collected from the profiles of 27 X users 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 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 8 27%
Student > Bachelor 4 13%
Other 3 10%
Unspecified 3 10%
Student > Master 3 10%
Other 4 13%
Unknown 5 17%
Readers by discipline Count As %
Medicine and Dentistry 6 20%
Biochemistry, Genetics and Molecular Biology 5 17%
Immunology and Microbiology 4 13%
Agricultural and Biological Sciences 3 10%
Unspecified 3 10%
Other 3 10%
Unknown 6 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 18. 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 13 October 2016.
All research outputs
#2,036,249
of 25,371,288 outputs
Outputs from Journal of Hepatology
#1,142
of 6,276 outputs
Outputs of similar age
#32,487
of 312,394 outputs
Outputs of similar age from Journal of Hepatology
#38
of 123 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 91st percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 6,276 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.1. This one has done well, scoring higher than 81% of its peers.
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 312,394 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 89% of its contemporaries.
We're also able to compare this research output to 123 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 69% of its contemporaries.