Abstract | OBJECTIVES: METHODS: Four study groups of BALB/c mice were included into this study: control, bleomycin (administered subcutaneously to BALB/c mice for 21 days), bleomycin and fostamatinib (mice fed with chow containing a Syk inhibitor for 21 days), and fostamatinib alone groups. Skin and lung tissue specimens were obtained and evaluated histologically. RESULTS: CONCLUSIONS: The Syk inhibitor fostamatinib prevented bleomycin-induced fibrosis and inflammation in the skin and in the lung. The anti-fibrotic effect of fostamatinib is linked to reduced Syk phosphorylation and TGF-β expression. The Syk pathway appears as a potential molecular target for therapeutic intervention in SSc.
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Authors | Omer Nuri Pamuk, Guray Can, Suleyman Ayvaz, Turan Karaca, Gulsum Emel Pamuk, Selim Demirtas, George C Tsokos |
Journal | Clinical and experimental rheumatology
(Clin Exp Rheumatol)
2015 Jul-Aug
Vol. 33
Issue 4 Suppl 91
Pg. S15-22
ISSN: 0392-856X [Print] Italy |
PMID | 26148346
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Aminopyridines
- Intracellular Signaling Peptides and Proteins
- Morpholines
- Oxazines
- Protein Kinase Inhibitors
- Pyridines
- Pyrimidines
- Receptors, Fc
- Transforming Growth Factor beta
- Bleomycin
- Immunoglobulin E
- Protein-Tyrosine Kinases
- Syk Kinase
- Syk protein, mouse
- fostamatinib
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Topics |
- Aminopyridines
- Animals
- Bleomycin
- Cytoprotection
- Disease Models, Animal
- Immunoglobulin E
(metabolism)
- Intracellular Signaling Peptides and Proteins
(antagonists & inhibitors, metabolism)
- Lung
(drug effects, enzymology, immunology, pathology)
- Mast Cells
(drug effects, immunology, metabolism)
- Mice, Inbred C57BL
- Morpholines
- Oxazines
(pharmacology)
- Phosphorylation
- Protein Kinase Inhibitors
(pharmacology)
- Protein-Tyrosine Kinases
(antagonists & inhibitors, metabolism)
- Pulmonary Fibrosis
(chemically induced, enzymology, immunology, pathology, prevention & control)
- Pyridines
(pharmacology)
- Pyrimidines
- Receptors, Fc
(metabolism)
- Scleroderma, Systemic
(chemically induced, enzymology, immunology, pathology, prevention & control)
- Signal Transduction
(drug effects)
- Skin
(drug effects, enzymology, immunology, pathology)
- Syk Kinase
- Transforming Growth Factor beta
(metabolism)
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