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Genomic locus on chromosome 1 regulates susceptibility to spontaneous arthritis in mice deficiency of IL-1RA

Overview of attention for article published in BMC Immunology, December 2014
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Title
Genomic locus on chromosome 1 regulates susceptibility to spontaneous arthritis in mice deficiency of IL-1RA
Published in
BMC Immunology, December 2014
DOI 10.1186/s12865-014-0057-9
Pubmed ID
Authors

Nan Deng, Yan Jiao, Yanhong Cao, Xiaoyun Liu, Yonghui Ma, Karen A Hasty, David D Brand, John M Stuart, Weikuan Gu

Abstract

BackgroundTo understand the role of genetic factors on chromosome 1 in the regulation of spontaneous arthritis in mice deficient in IL-1 receptor antagonist protein (IL_1RA), we previously used speed congenic breeding to transfer the QTL region from DBA/1¿/¿ mice that are resistant to spontaneous arthritis into BALB/c¿/¿ mice which are susceptible. We were able to establish two congenic strains which exhibited a delayed onset and reduced severity of disease. In this study, we asked a different set of questions. How will the QTL region from BALB/c¿/¿ interact with the rest of the genome in the DBA/1¿/¿ background? Will the DBA/1¿/¿ mice become susceptible to spontaneous arthritis if the QTL genomic region on chromosome 1 was replaced with the genomic fragment of the same region from BALB/c¿/¿? We conducted the congenic breeding with the similar procedure as that of congenic strains with BALB/c¿/¿ background.ResultInstead of BALB/c¿/¿, DBA/1¿/¿ was used as the recurrent parent while BALB/c¿/¿ was used as the donor parent. By the 6th generation we determined that all of the chromosomes in the progeny were of DBA/1¿/¿ origin with the exception of the QTL portion of chromosome 1 which is heterozygous of BALB/c¿/¿ and DBA/1¿/¿ origin. We then intercrossed selected mice to produce homozygous strains containing the homozygous genomic region of BALB/c¿/¿ on chromosome 1, while the rest of genome are homozygous DBA/1¿/¿. This strain was observed for the development of spontaneous arthritis. Up to 9 weeks of age, both congenic strain and DBA/1¿/¿ did not develop arthritis. However, after 9 weeks, the congenic strain started to exhibit signs of arthritis, while the DBA/1¿/¿ remained free from disease.ConclusionThe result indicates a strong influence of genetic factor(s) on the QTL of chromosome 1 on the susceptibility to spontaneous arthritis. Identification of genetic factors within this QTL region in the future will significantly enhance our understanding of molecular mechanism of spontaneous arthritis.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 5 100%

Demographic breakdown

Readers by professional status Count As %
Other 1 20%
Student > Doctoral Student 1 20%
Student > Bachelor 1 20%
Student > Master 1 20%
Professor > Associate Professor 1 20%
Other 0 0%
Readers by discipline Count As %
Medicine and Dentistry 2 40%
Agricultural and Biological Sciences 1 20%
Immunology and Microbiology 1 20%
Engineering 1 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 10 December 2014.
All research outputs
#18,386,678
of 22,774,233 outputs
Outputs from BMC Immunology
#421
of 585 outputs
Outputs of similar age
#261,452
of 361,040 outputs
Outputs of similar age from BMC Immunology
#10
of 13 outputs
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