GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
Series GSE10038 Query DataSets for GSE10038
Status Public on Mar 24, 2016
Title Upregulation of Expression of Matrix Metalloproteinases in Alveolar Macrophages of HIV1+ Smokers with Early Emphysema
Organism Homo sapiens
Experiment type Expression profiling by array
Summary HIV1+ smokers develop emphysema at an earlier age and with a higher incidence than HIV1- smokers. Based on the knowledge that human alveolar macrophages (AM) are capable of producing proteases that degrade extracellular matrix components, we hypothesized that upregulation of AM matrix metalloproteinases may be associated with the emphysema of HIV1+ smokers. To test this hypothesis, microarray analysis was used to screen which MMP genes were expressed by AM isolated by bronchoalveolar lavage (BAL) of HIV1+ smokers with early emphysema. For each of the MMP genes observed to be expressed (MMP-1, -2, -7, -9, -10, -12 and -14), TaqMan PCR was used to quantify the relative expression in AM from 4 groups of individuals: HIV1 healthy nonsmokers, HIV1- healthy smokers, HIV1- smokers with early emphysema and HIV1+ smokers with early emphysema. Strikingly, while AM gene expression of MMPs was higher in HIV1- individuals with emphysema in comparison with HIV1- healthy smokers, for the majority of the MMPs (-1, -7, -9, -10, -12), AM expression from HIV1+ smokers with early emphysema was significantly higher than HIV1- smokers with early emphysema. Consistent with these observations, HIV1+ individuals with early emphysema had higher levels of epithelial lining fluid MMPs (-2, -7, -9,-12) than the 3 HIV1 groups. Interestingly, the active forms of MMP-2, -9 and -12 were detected in epithelial lining fluid from HIV1+ individuals with early emphysema, but not in any of the other groups. Considering that the substrate specificity of the upregulated AM MMPs includes collagenases, gelatinases, matrilysins and elastase, these data suggest that upregulated AM MMP genes and activation of MMP proteins may contribute to the emphysema of HIV1+ individuals who smoke.
Keywords: expression study
Overall design Asymptomatic HIV+ smokers with early emphysema
Contributor(s) Kaner RJ, Santiago F, Crystal RG
Citation(s) 19605697
Submission date Dec 28, 2007
Last update date Mar 25, 2019
Contact name Yael Strulovici-Barel
Organization name Weill Cornell Medical College
Department Department of Genetic Medicine
Lab Crystal
Street address 1300 York Avenue
City New York
State/province NY
ZIP/Postal code 10021
Country USA
Platforms (1)
GPL570 [HG-U133_Plus_2] Affymetrix Human Genome U133 Plus 2.0 Array
Samples (11)
GSM253634 alveolar macrophage, early-COPD 008
GSM253635 alveolar macrophage, early-COPD 018
GSM253636 alveolar macrophage, early-COPD 020
BioProject PRJNA108603

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE10038_RAW.tar 240.3 Mb (http)(custom) TAR (of CEL, CHP)
Raw data provided as supplementary file
Processed data provided as supplementary file
Processed data included within Sample table

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap