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Piwi Genes Are Dispensable for Normal Hematopoiesis in Mice

Overview of attention for article published in PLOS ONE, August 2013
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Title
Piwi Genes Are Dispensable for Normal Hematopoiesis in Mice
Published in
PLOS ONE, August 2013
DOI 10.1371/journal.pone.0071950
Pubmed ID
Authors

Mona J. Nolde, Ee-chun Cheng, Shangqin Guo, Haifan Lin

Abstract

Hematopoietic stem cells (HSC) must engage in a life-long balance between self-renewal and differentiation to sustain hematopoiesis. The highly conserved PIWI protein family regulates proliferative states of stem cells and their progeny in diverse organisms. A Human piwi gene (for clarity, the non-italicized "piwi" refers to the gene subfamily), HIWI (PIWIL1), is expressed in CD34⁺ stem/progenitor cells and transient expression of HIWI in a human leukemia cell line drastically reduces cell proliferation, implying the potential function of these proteins in hematopoiesis. Here, we report that one of the three piwi genes in mice, Miwi2 (Piwil4), is expressed in primitive hematopoetic cell types within the bone marrow. Mice with a global deletion of all three piwi genes, Miwi, Mili, and Miwi2, are able to maintain long-term hematopoiesis with no observable effect on the homeostatic HSC compartment in adult mice. The PIWI-deficient hematopoetic cells are capable of normal lineage reconstitution after competitive transplantation. We further show that the three piwi genes are dispensable during hematopoietic recovery after myeloablative stress by 5-FU. Collectively, our data suggest that the function of the piwi gene subfamily is not required for normal adult hematopoiesis.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 59 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 2%
United States 1 2%
India 1 2%
Germany 1 2%
Unknown 55 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 13 22%
Researcher 11 19%
Student > Master 6 10%
Student > Doctoral Student 5 8%
Other 4 7%
Other 8 14%
Unknown 12 20%
Readers by discipline Count As %
Agricultural and Biological Sciences 20 34%
Biochemistry, Genetics and Molecular Biology 14 24%
Neuroscience 4 7%
Immunology and Microbiology 4 7%
Medicine and Dentistry 2 3%
Other 3 5%
Unknown 12 20%
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 24 August 2013.
All research outputs
#20,198,525
of 22,716,996 outputs
Outputs from PLOS ONE
#173,074
of 193,928 outputs
Outputs of similar age
#174,656
of 199,028 outputs
Outputs of similar age from PLOS ONE
#4,100
of 4,760 outputs
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