Abstract
Background: Cancer is a global health problem and the main cause of mortality. Most cancer-associated cases of mortality are the consequences of lack of effective treatment and biomarkers for early diagnosis. New hopes for the improvement of the early diagnosis and treatment of cancer synchronize with the emergence of microRNAs (miRNAs). MicroRNAs are small, noncoding, single-stranded RNAs, the length of which is approximately 18–25 nucleotides and which bind to 3’ untranslated region (3’UTR) of the target messenger RNAs (mRNAs), leading to mRNA degradation or translational inhibition; thereby regulating gene expression post-transcriptionally.
Aim: Using microRNAs as promising and potential biomarkers for diagnosis and therapeutic targets.
Methods: The microRNA expression changes in peripheral blood and can be assayed using non-invasive, low-cost, precise, and rapid tools.
Results: It is noteworthy that miRNAs participate in multiple cancer-related biological processes, including proliferation, apoptosis, angiogenesis, drug resistance, invasion, and metastasis. Interestingly, the identified cancer-associated miRNAs, including over-expressed oncogenic miRNAs (oncomiRs) or underexpressed tumor-suppressive miRNAs, are diverse and specific for different tissues and cancer types.
Conclusion: The genetic testing of microRNAs opens up the exciting possibility of early diagnosis and treatment before the onset of metastasis.
Aim: Using microRNAs as promising and potential biomarkers for diagnosis and therapeutic targets.
Methods: The microRNA expression changes in peripheral blood and can be assayed using non-invasive, low-cost, precise, and rapid tools.
Results: It is noteworthy that miRNAs participate in multiple cancer-related biological processes, including proliferation, apoptosis, angiogenesis, drug resistance, invasion, and metastasis. Interestingly, the identified cancer-associated miRNAs, including over-expressed oncogenic miRNAs (oncomiRs) or underexpressed tumor-suppressive miRNAs, are diverse and specific for different tissues and cancer types.
Conclusion: The genetic testing of microRNAs opens up the exciting possibility of early diagnosis and treatment before the onset of metastasis.
Keywords
anticancer therapy
cancer diagnosis
circulating biomarkers
gene silencing
microRNAs
miRNAs detection.