Differential expression of circulating micro-RNAs in patients with active and latent tuberculosis
José Yareta1,2, Marco Galarza1, Silvia Capristano1
1Laboratorio de Referencia Nacional de Biotecnología y Biología Molecular, Instituto Nacional de Salud, Lima, Perú.
Objectives:
To analyze the differential expression of miR-21, miR-29a, miR-99b and miR-155 in serum samples from patients with latent tuberculosis (TB) and active TB compared to healthy controls.
Mate Rials And Methods:
We used 28 serum samples (9 with active TB, 10 with latent TB and 9 healthy con trols) for the analysis of gene expression by RT-qPCR with Primers and TaqMan probes. The differential expression was calculated by the Livak method using a normalizing gene (RNU-48).
Results:
Overex pression of miR-155 was found in people with latent tuberculosis, compared to healthy controls (0.63 vs. 0.01; p value = 0.032).
Conclusion:
The miR-155 could be considered a biomarker to differentiate latent TB from active disease. Studies with larger sample sizes are required to corroborate the findings.
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Mode of...
MicroRNAs


