NDLI: Identification of novel chromosomal regions associated with airway hyperresponsiveness in recombinant congenic strains of mice

Content Provider	Springer Nature Link
Author	Camateros, Pierre Mari, Rafael Fortin, Anny Martin, James G. Skamene, Emil Sladek, Rob Radzioch, Danuta
Copyright Year	2009
Abstract	Airway responsiveness is the ability of the airways to respond to bronchoconstricting stimuli by reducing their diameter. Airway hyperresponsiveness has been associated with asthma susceptibility in both humans and murine models, and it has been shown to be a complex and heritable trait. In particular, the A/J mouse strain is known to have hyperresponsive airways, while the C57BL/6 strain is known to be relatively refractory to bronchoconstricting stimuli. We analyzed recombinant congenic strains (RCS) of mice generated from these hyper- and hyporesponsive parental strains to identify genetic loci underlying the trait of airway responsiveness in response to methacholine as assessed by whole-body plethysmography. Our screen identified 16 chromosomal regions significantly associated with airway hyperresponsiveness (genome-wide P ≤ 0.05): 8 are supported by independent and previously published reports while 8 are entirely novel. Regions that overlap with previous reports include two regions on chromosome 2, three on chromosome 6, one on chromosome 15, and two on chromosome 17. The 8 novel regions are located on chromosome 1 (92–100 cM), chromosome 5 (>73 cM), chromosome 7 (>63 cM), chromosome 8 (52–67 cM), chromosome 10 (3–7 cM and >68 cM), and chromosome 12 (25–38 cM and >52 cM). Our data identify several likely candidate genes from the 16 regions, including Ddr2, Hc, Fbn1, Flt3, Utrn, Enpp2, and Tsc.
Starting Page	28
Ending Page	38
Page Count	11
File Format	PDF
ISSN	09388990
Journal	Mammalian Genome
Volume Number	21
Issue Number	1-2
e-ISSN	14321777
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-12-15
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Zoology Anatomy Cell Biology
Content Type	Text
Resource Type	Article
Subject	Genetics

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