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Published on: October 14, 2012
Holistic insights into meningitic Escherichia coli infection of astrocytes based on whole transcriptome profiling
Bo Yang1,2, Peixiu Yin1,2, Ruicheng Yang1,2
1State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
Abstract:
Aim: To investigate the mRNAs and noncoding RNAs (ncRNAs) expression in astrocytes upon meningitic-Escherichia coli infection. Materials & methods: The transcription of mRNAs and ncRNAs were fully investigated and profiled by whole transcriptome sequencing and bioinformatic approaches. Whole transcriptome differences between the infected astrocytes and brain microvascular endothelial cells were further compared and characterized. Results: A total of 2045 mRNAs, 74 long noncoding RNAs, 27 miRNAs and 418 circular RNAs were differentially transcribed in astrocytes upon infection. Competing endogenous RNAs regulatory networks were constructed and preliminary validated. Transcriptomic differences between astrocyte and brain microvascular endothelial cells revealed the cell-specific responses against the infection. Conclusion: Our study comprehensively characterized the ncRNAs and mRNAs profiles in astrocytes upon meningitic-E. coli infection, which will facilitate future functional studies.
Insights
This study reveals changes in messenger RNAs (mRNAs) and noncoding RNAs (ncRNAs) within astrocytes during meningitis-causing Escherichia coli infection. Understanding these molecular responses aids future research into brain infections.
Area of Science:
- Neuroscience
- Microbiology
- Molecular Biology
Background:
- Meningitis-induced Escherichia coli infection impacts brain cells.
- Astrocytes play a crucial role in the central nervous system's response to infection.
- Understanding the molecular changes in astrocytes is vital for combating meningitis.
Purpose of the Study:
- To investigate messenger RNA (mRNA) and noncoding RNA (ncRNA) expression in astrocytes following infection with meningitis-causing Escherichia coli.
- To compare transcriptomic profiles between infected astrocytes and brain microvascular endothelial cells.
Main Methods:
- Whole transcriptome sequencing was employed to profile mRNA and ncRNA transcription.
- Bioinformatic approaches were utilized for comprehensive analysis.
- Comparative transcriptomic analysis was performed between infected astrocytes and brain microvascular endothelial cells.
Main Results:
- Differential transcription of 2045 mRNAs, 74 long noncoding RNAs, 27 microRNAs (miRNAs), and 418 circular RNAs was observed in infected astrocytes.
- Competing endogenous RNA (ceRNA) regulatory networks were constructed and validated.
- Cell-specific transcriptomic differences highlighted distinct responses in astrocytes and brain microvascular endothelial cells.
Conclusions:
- This study provides a comprehensive characterization of mRNA and ncRNA profiles in astrocytes during Escherichia coli meningitis.
- The findings establish a foundation for future functional investigations into astrocyte responses to infection.
- The identified molecular profiles offer insights into the cellular mechanisms underlying meningitis.
