Sequence comparison of six human microRNAs genes between tuberculosis patients and healthy individuals
A Amila1, A Acosta2, M E Sarmiento1
1School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.
Objective/Background:
MicroRNAs (miRNAs) play an important role in diseases development. Therefore, human miRNAs may be able to inhibit the survival of Mycobacterium tuberculosis (Mtb) in the human host by targeting critical genes of the pathogen. Mutations within miRNAs can alter their target selection, thereby preventing them from inhibiting Mtb genes, thus increasing host susceptibility to the disease.
Methods:
This study was undertaken to investigate the genetic association of pulmonary tuberculosis (TB) with six human miRNAs genes, namely, hsa-miR-370, hsa-miR-520d, hsa-miR-154, hsa-miR-497, hsa-miR-758, and hsa-miR-593, which have been predicted to interact with Mtb genes. The objective of the study was to determine the possible sequence variation of selected miRNA genes that are potentially associated with the inhibition of critical Mtb genes in TB patients.
Results:
The study did not show differences in the sequences compared with healthy individuals without antecedents of TB.
Conclusion:
This result could have been influenced by the sample size and the selection of miRNA genes, which need to be addressed in future studies.
Insights
Genetic variations in specific human microRNAs (miRNAs) were investigated for their association with pulmonary tuberculosis (TB). No significant sequence differences were found in the selected miRNAs between TB patients and healthy individuals.
Area of Science:
- Genetics
- Molecular Biology
- Immunology
Background:
- MicroRNAs (miRNAs) are crucial regulators in disease development.
- Human miRNAs can potentially inhibit Mycobacterium tuberculosis (Mtb) survival by targeting pathogen genes.
- Mutations in miRNAs may impair Mtb gene inhibition, increasing susceptibility to tuberculosis (TB).
Purpose of the Study:
- To investigate the genetic association between pulmonary TB and six specific human miRNA genes.
- To determine if sequence variations in selected miRNAs correlate with the inhibition of critical Mtb genes in TB patients.
Main Methods:
- Examined genetic association of pulmonary TB with hsa-miR-370, hsa-miR-520d, hsa-miR-154, hsa-miR-497, hsa-miR-758, and hsa-miR-593.
- Focused on sequence variations in miRNAs predicted to interact with Mtb genes.
Main Results:
- No significant differences in miRNA sequences were observed between TB patients and healthy individuals.
- The study did not find a genetic association between the selected miRNA gene sequences and pulmonary TB.
Conclusions:
- The lack of observed genetic association may be due to sample size limitations.
- Future studies should address sample size and explore a broader selection of miRNA genes for a comprehensive understanding.
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