Serum MicroRNA-155 Expression Level as a Novel Biomarker in Alopecia Areata Patients

Document Type : Original Research Papers

Authors

1 Dermatology, Venereology and Andrology Dept., Faculty of Medicine, Benha Univ, Benha, Egypt

2 Medical Microbiology and Immunology Dept.,Faculty of Medicine, Benha Univ, Benha,Egypt

Abstract

MicroRNA-155 has been implicated in several autoimmune diseases, including experimental autoimmune encephalomyelitis and rheumatoid arthritis, due to its activity against a wide range of immunological gene targets. Overexpression of miR-155 may represent a hallmark feature in Alopecia areata (AA) disease pathogenesis and across multiple autoimmune conditions. It could potentially reflect and or influence the activation of T cells in autoimmune diseas. The present work aims is to assess serum level of miRNA-155 in patients with AA. MiR-155 level was identified by real-time polymerase chain reaction (PCR) in 30 patients with AA and 30 individuals as healthy controls. Results: There was a statistically significant increase in serum miR-155 level in patients than in controls. Conclusion: Serum level of miR-155 was significantly higher in patients with AA than controls, which indicated its role in the pathogenesis of AA.

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