Title:The Core Human MicroRNAs Regulated by Toxoplasma gondii
Volume: 11
Issue: 2
Author(s): Neelam Antil, Mohammad Arefian, Mrudula Kinarulla Kandiyil, Kriti Awasthi, Thottethodi Subrahmanya Keshava Prasad*Rajesh Raju*
Affiliation:
- Centre for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University),
Mangalore 575018, India
- Centre for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University),
Mangalore 575018, India
- Centre for Integrative Omics
Data Science, Yenepoya (Deemed to be University), Mangalore 575018, India
Keywords:
Apicomplexan parasites, toxoplasmosis, microRNA, bioinformatics, miRNA-mRNA interaction, regulatory network.
Abstract:
Background: Toxoplasma gondii (T. gondii) is an intracellular zoonotic protozoan parasite
known to effectively modulate the host system for its survival. A large number of microRNAs
(miRNAs) regulated by different strains of T. gondii in diverse types of host cells/tissues/organs
have been reported across multiple studies.
Objective: We aimed to decipher the complexity of T. gondii regulated spectrum of miRNAs to derive
a set of core miRNAs central to different strains of T. gondii infection in diverse human cell
lines.
Methods: We first assembled miRNAs hat are regulated by T. gondii altered across the various assortment
of infections and time points of T. gondii infection in multiple cell types. For these assembled
datasets, we employed specific criteria to filter the core miRNAs regulated by T. gondii.
Subsequently, accounting for the spectrum of miRNA-mRNA target combinations, we applied a
novel confidence criterion to extract their core experimentally-validated mRNA targets in human
cell systems.
Results: This analysis resulted in the extraction of 74 core differentially regulated miRNAs and
their 319 high-confidence mRNA targets. Based on these core miRNA-mRNA pairs, we derived the
central biological processes perturbed by T. gondii in diverse human cell systems. Further, our analysis
also resulted in the identification of novel autocrine/paracrine signalling factors that could be
associated with host response modulated by T. gondii.
Conclusion: The current analysis derived a set of core miRNAs, their targets, and associated biological
processes fine-tuned by T. gondii for its survival within the invaded cells.