Murine pulmonary response to chronic hypoxia is strain specific.
Information concerning the effects of genetic variation between different background strains on hemodynamic, morphometric, and gene expression response to hypoxia would be useful. Three strains of mice were kept in hypoxia and phenotyped followed by gene profiling analysis. Among the variables examined, hematocrit, right heart muscularization, and right ventricular systolic pressure showed a strain-specific effect. Increased gene expression of inflammatory, muscle, and angiogenesis genes were seen in all strains, though the specific genes changed varied among groups. These results suggest that different strains use different gene expression mechanisms to adapt to the challenge of chronic hypoxia, resulting in modified phenotypic changes.
Tada
Yuji
Y
Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Health Sciences Center, Denver, Colorado, USA. ytada@faculty.chiba-u.jp
Laudi
Sven
S
Harral
Julie
J
Carr
Michelle
M
Ivester
Charles
C
Tanabe
Nobuhiro
N
Takiguchi
Yuichi
Y
Tatsumi
Koichiro
K
Kuriyama
Takayuki
T
Nichols
William C
WC
West
James
J
D000818:Animals; D002908:Chronic Disease; D004562:Electrocardiography; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D020022:Genetic Predisposition to Disease; D023281:Genomics; D006352:Heart Ventricles / Q000378:metabolism* / Q000503:physiopathology; D006400:Hematocrit; D000860:Hypoxia / Q000235:genetics / Q000378:metabolism* / Q000503:physiopathology; D008168:Lung / Q000378:metabolism* / Q000503:physiopathology; D051379:Mice; D008815:Mice, Inbred Strains / Q000235:genetics*; D020411:Oligonucleotide Array Sequence Analysis; D012333:RNA, Messenger / Q000378:metabolism; D013045:Species Specificity; D016278:Ventricular Function, Right / Q000235:genetics
D012333:RNA, Messenger