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Contemporary Ribonomics Methods for Viral microRNA Target Analysis
Lauren A Gay1, Peter C Turner2, Rolf Renne3
1Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32610, USA. lagay@ufl.edu.
Non-Coding RNA
|November 15, 2018
Summary
Researchers used cross-linking and immunoprecipitation (CLIP) to identify microRNA (miRNA) targets, revealing crucial interactions for viruses like EBV and KSHV in disease.
Area of Science:
- Molecular Biology
- Virology
- Genomics
Background:
- MicroRNAs (miRNAs) regulate numerous cellular and viral processes.
- Identifying miRNA targets is crucial for understanding gene regulation.
- Viral miRNAs play significant roles in host-pathogen interactions.
Purpose of the Study:
- To elucidate miRNA targets using advanced ribonomics techniques.
- To investigate miRNA-target interactions in the context of γ-herpesviruses, specifically KSHV and EBV.
- To review and compare different CLIP-based methods for miRNA target identification.
Main Methods:
- Cross-linking and Immunoprecipitation (CLIP) coupled with high-throughput sequencing.
- Utilizing antibodies against Argonaute (Ago) protein within the RISC complex.
- Employing RNA-RNA ligation techniques for enhanced target identification.
Main Results:
- CLIP-based methods, particularly Ago-CLIP, have successfully identified numerous miRNA targets.
- High-throughput sequencing of CLIP data revealed extensive miRNA targetomes for KSHV and EBV.
- Recent advancements in CLIP protocols, including RNA-RNA ligation, improve miRNA-target linkage.
- Evidence for biologically significant interactions between miRNAs and long non-coding RNAs (lncRNAs) was reviewed.
Conclusions:
- Ribonomics-based miRNA targetome analysis significantly enhances our understanding of miRNA-mediated gene regulation.
- This approach provides valuable insights into the roles of miRNAs in EBV and KSHV pathogenesis and tumorigenesis.
- CLIP and its variants are powerful tools for comprehensive miRNA target discovery.
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