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Updated: Jun 19, 2026
Immunodetection of Outer Membrane Proteins by Flow Cytometry of Isolated Mitochondria
Published on: September 18, 2014
Immunolabelling and flow cytometry as new tools to explore dysferlinopathies
1From Inserm UMR_S 910 Génétique Médicale et Génomique Fonctionnelle, Université de la Méditerranée, Faculté de Médecine de Marseille, France.
Whole blood flow cytometry offers a new diagnostic method for dysferlinopathies, a muscular dystrophy caused by DYSF mutations. This technique measures dysferlin protein levels in monocytes, aiding in disease diagnosis.
Area of Science:
- Biochemistry
- Genetics
- Immunology
Background:
- Dysferlinopathies are inherited muscular dystrophies linked to mutations in the DYSF gene, resulting in deficient dysferlin protein.
- Current diagnostic methods include Western blot analysis of muscle or blood monocyte protein extracts.
Observation:
- Dysferlin protein is expressed in monocytes, making them a viable cell type for diagnostic analysis.
- A novel whole blood flow cytometry (WBFC) method was developed utilizing antibodies targeting dysferlin.
Findings:
- WBFC analysis was performed on six dysferlinopathy patients, alongside immunofluorescence and Western blot analyses on monocytes and muscle biopsies.
- Results demonstrated a correlation between WBFC findings and established diagnostic methods, validating the utility of WBFC.
Implications:
- WBFC presents a potentially valuable tool for the routine diagnosis of dysferlinopathies.
- This method may streamline diagnostic workflows by utilizing readily accessible blood samples.
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