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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
Alternative splicing factor ASF/SF2 is down regulated in inflamed muscle
1Laboratory of Immunopathology, Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, USA.
Journal of Clinical Pathology
|April 1, 2006
Summary
Alternative splicing factor 2 (ASF/SF2) is reduced in inflammatory myositis. Tumor necrosis factor alpha (TNFalpha) may mediate this downregulation, offering new therapeutic targets for autoimmune muscle diseases.
Area of Science:
- Molecular Biology
- Immunology
- Autoimmune Diseases
Background:
- Alternative splicing plays a critical role in inflammation and autoimmune muscle diseases.
- Investigating the role of specific splicing factors in these conditions is crucial.
Purpose of the Study:
- To test the hypothesis that alternative splicing factor 2 (ASF/SF2) expression is altered in muscle inflammation.
- To elucidate the potential mechanisms behind ASF/SF2 modulation in inflammatory myopathy.
Main Methods:
- Western blot analysis of ASF/SF2 expression in muscle biopsies from inflammatory myopathy patients and controls.
- In vitro stimulation of C2C12 myotubes with tumor necrosis factor alpha (TNFalpha) to assess ASF/SF2 regulation.
Main Results:
- ASF/SF2 expression was significantly lower in muscle samples from patients with inflammatory myopathy compared to controls.
- ASF/SF2 expression was markedly downregulated in TNFalpha-stimulated C2C12 myotubes.
Conclusions:
- Alternative splicing factor ASF/SF2 is downregulated in autoimmune inflammatory myositis, potentially through a TNFalpha-dependent pathway.
- This finding opens avenues for developing novel diagnostic and therapeutic strategies targeting alternative splicing in autoimmune diseases.
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