Abstract
MicroRNAs (miRNAs) found in animals, plants, and some viruses belongs to the heterogeneous class of non-coding RNAs (ncRNAs), which posttranscriptional regulates gene expression. They are linked to various cellular activities such as cell growth, differentiation, development and apoptosis. Also, they have been involved in cancer, metabolic diseases, viral infections and clinical trials targeting miRNAs has shown promising results. This chapter provides an overview on Taenia solium and Taenia crassiceps miRNAs, their possible biological functions, their role in host–parasite communication and their potential role as biomarkers and drug targets.