Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
105
pubmed:dateCreated
2002-4-16
pubmed:abstractText
To begin identifying genes controlling individual susceptibility to particulate matter, responses of inbred mouse strains exposed to nickel sulfate (NiSO4*) were compared with those of mice exposed to ozone (O3) or polytetrafluoroethylene (PTFE). The A strain was sensitive to NiSO4-induced lung injury (quantified by survival time), the C3H/He (C3) strain and several other strains were intermediate in their responses, and the C57BL/6 (B6) strain was resistant. The strains showed a pattern of response similar to the patterns of response to O3 and PTFE. The phenotype of A x B6 offspring (B6AF1) resembled that of the resistant B6 parental strain, with strains exhibiting sensitivity in the order A > C3 > B6 = B6AF1. Pathology was comparable for the A and B6 mice, and exposure to NiSO4 at 15 microg/m3 produced 20% mortality in A mice. Strain sensitivity for the presence of protein or neutrophils in lavage fluid differed from strain sensitivity for survival time, suggesting that they are not causally linked but are controlled by an independent gene or genes. In the B6 strain, exposure to nickel oxide (NiO) by instillation (40 to 1000 nm) or inhalation (50 nm) produced no changes, whereas inhalation of NiSO4 (60 or 250 nm) increased lavage proteins and neutrophils. Complementary DNA (cDNA) microarray analysis with 8,734 sequence-verified clones revealed a temporal pattern of increased oxidative stress, extracellular matrix repair, cell proliferation, and hypoxia, followed by a decrease in surfactant-associated proteins (SPs). Certain expressed sequence tags (ESTs), clustered with known genes, suggest possible coregulation and novel roles in pulmonary injury. Finally, locus number estimation (Wright equation) and a genomewide analysis suggested 5 genes could explain the survival time and identified significant linkage for a quantitative trait locus (QTL) on chromosome 6, Aliq4 (acute lung injury QTL4). Haplotype analysis identified an allelic combination of 5 QTLs that could explain the difference in sensitivity to acute lung injury between parental strains. Positional candidate genes for Aliq4 include aquaporin-1 (Aqp1), SP-B, and transforming growth factor-alpha (TGF-alpha). Transgenic mice expressing TGF-alpha were rescued from NiSO4 injury (that is, they had diminished SP-B loss and increased survival time). These findings suggest that NiSO4-induced acute lung injury is a complex trait controlled by at least 5 genes (all possibly involved in cell proliferation and surfactant function). Future assessment of these susceptibility genes (including evaluations of human synteny and function) could provide valuable insights into individual susceptibility to the adverse effects of particulate matter.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1041-5505
pubmed:author
pubmed:issnType
Print
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5-58; discussion 59-71
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11954676-Air Pollutants, pubmed-meshheading:11954676-Animals, pubmed-meshheading:11954676-Blotting, Northern, pubmed-meshheading:11954676-Bronchoalveolar Lavage, pubmed-meshheading:11954676-Cell Division, pubmed-meshheading:11954676-Chromosome Mapping, pubmed-meshheading:11954676-Disease Models, Animal, pubmed-meshheading:11954676-Gene Expression Regulation, pubmed-meshheading:11954676-Inflammation, pubmed-meshheading:11954676-Inhalation Exposure, pubmed-meshheading:11954676-Irritants, pubmed-meshheading:11954676-Lung Diseases, pubmed-meshheading:11954676-Mice, pubmed-meshheading:11954676-Mice, Inbred Strains, pubmed-meshheading:11954676-Nickel, pubmed-meshheading:11954676-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:11954676-Oxidants, Photochemical, pubmed-meshheading:11954676-Ozone, pubmed-meshheading:11954676-Particle Size, pubmed-meshheading:11954676-Phenotype, pubmed-meshheading:11954676-Polytetrafluoroethylene, pubmed-meshheading:11954676-Surface-Active Agents, pubmed-meshheading:11954676-Survival Analysis
pubmed:year
2001
pubmed:articleTitle
Pathogenomic mechanisms for particulate matter induction of acute lung injury and inflammation in mice.
pubmed:affiliation
Department of Environmental Health, University of Cincinnati, OH 45267-0056, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.