RGD Reference Report - Alterations in cytoskeletal and immune function-related proteome profiles in whole rat lung following intratracheal instillation of heparin. - Rat Genome Database

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Alterations in cytoskeletal and immune function-related proteome profiles in whole rat lung following intratracheal instillation of heparin.

Authors: Gabr, AA  Reed, M  Newman, DR  Pohl, J  Khosla, J  Sannes, PL 
Citation: Gabr AA, etal., Respir Res. 2007 May 8;8:36.
RGD ID: 2306206
Pubmed: PMID:17488504   (View Abstract at PubMed)
PMCID: PMC1876226   (View Article at PubMed Central)
DOI: DOI:10.1186/1465-9921-8-36   (Journal Full-text)

BACKGROUND: Heparin has been shown to modify fundamental biologic processes ranging from blood coagulation and cell proliferation to fibrogenesis and asthma. The goal of this study was to identify specific or broad biologic responses of the rat lung to intratracheal instillation of heparin by targeted proteomic analysis. METHODS: Rats were given either aerosolized 500 microg heparin in 250 microl saline or saline alone. Lungs were harvested at 0, 24, or 96 hours post-treatment and isolated proteins analyzed by two-dimensional gel electrophoresis. Proteins which increased and decreased significantly in treated groups above controls were then selected for identification by mass spectrometry. RESULTS: Although heparin treatments resulted in a general reduction in cytosolic protein expression, there were significant increases within members of discrete groups of proteins. At 24 hours, proteins which function in cytoskeletal organization and in calcium signaling were up-regulated between 2- and 27-fold above baseline and untreated controls. Increased proteins include annexins V and VI, septin 2, capping G protein, actin-related protein 3, moesin, RhoGDP dissociation inhibitor, and calcyclin. A group of proteins relating to immune response and tumor suppressor function were either up-regulated (tumor suppressor p30/hyaluronic acid binding protein-1, Parkinson disease protein 7, proteosome 28 subunit/interferon-gamma inducible protein, and proteosome subunit macropain alpha-1) or strongly down-regulated (transgelin). At 96 hours, most proteins that had increased at 24 hours remained elevated but to a much lesser degree. CONCLUSION: These cumulative observations demonstrate that whole lung heparin treatment results in significant up-regulation of selected groups of proteins, primarily those related to cytoskeletal reorganization and immune function, which may prove to be relevant biomarkers useful in analysis of lung exposures/treatments as well as in system biology studies.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
response to heparin  IEP 2306206 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Actr3  (actin related protein 3)


Additional Information