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Updated: Mar 26, 2026

High-Throughput Transcriptome Analysis for Investigating Host-Pathogen Interactions
Published on: March 5, 2022
Co-transcriptomic Analysis by RNA Sequencing to Simultaneously Measure Regulated Gene Expression in Host and
Timothy Ravasi1,2,3, Charalampos Harris Mavromatis4,5,6, Nilesh J Bokil7,8
1Integrative Systems Biology Laboratory, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia. timothy.ravasi@kaust.edu.sa.
This study introduces a novel RNA sequencing method to analyze gene expression in both host cells and intramacrophage pathogens simultaneously. This approach reveals insights into host defense mechanisms and pathogen evasion strategies during infection.
Area of Science:
- Microbiology
- Immunology
- Genomics
Background:
- Intramacrophage pathogens can evade host defenses by manipulating host Toll-like receptor (TLR)-mediated responses.
- Host immune responses, particularly those induced by TLRs, can stress intracellular pathogens, altering their gene expression.
- Understanding these host-pathogen interactions at the transcriptional level is crucial for developing effective treatments.
Purpose of the Study:
- To describe a method for simultaneously quantifying gene expression changes in both host cells and intracellular bacterial pathogens using RNA sequencing.
- To provide general approaches for interpreting the generated RNA sequencing data.
- To gain insights into host TLR-regulated responses and pathogen subversion mechanisms.
Main Methods:
- Application of RNA sequencing (RNA-seq) on samples from in vitro infection assays.
- Simultaneous quantification of host and bacterial pathogen gene expression.
- Development of general data interpretation strategies for dual-species transcriptomics.
Main Results:
- The described RNA-seq method enables concurrent analysis of host and pathogen transcriptional profiles during infection.
- The approach facilitates the identification of specific gene expression alterations in both host and pathogen.
- Interpretation strategies aid in understanding the complex interplay between host immunity and pathogen adaptation.
Conclusions:
- Simultaneous host-pathogen transcriptomics via RNA-seq offers a powerful tool to study host-pathogen dynamics.
- This method provides deeper insights into TLR-mediated immunity and pathogen counter-strategies.
- The approach is valuable for advancing our understanding of intracellular infections and informing therapeutic strategies.
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