Use of the EpiAirway Model for Characterizing Long-term Host-pathogen Interactions

Overview

This method allows characterization of extended bacterial co-culture with EpiAirways, a biologically relevant in vitro model using primary human respiratory epithelial tissue. The approach can be utilized with any microbe suitable for long-term co-culture.

Key Study Components

Area of Science

• Microbiology
• Respiratory Biology
• In Vitro Models

Background

• Nontypeable Hemophilus influenza (NTHI) is a significant pathogen in respiratory infections.
• Understanding bacterial interactions with respiratory epithelial tissues is crucial for developing treatments.
• The EpiAirways model mimics the human airway environment.
• Long-term co-culture studies can provide insights into bacterial survival and behavior.

Purpose of Study

• To perform long-term co-culture of NTHI with primary human respiratory epithelial tissues.
• To evaluate the survival of NTHI within the tissues over time.
• To assess strain-specific characteristics of NTHI survival.

Methods Used

• Inoculation of the apical surface of epithelial tissues with NTHI.
• Washing inserts every 24 hours with pre-warmed DPBS to mimic mucus flow.
• Harvesting tissues at desired time points for analysis.
• Determining survival of total cell-associated or internalized NTHI.

Main Results

• Insights into long-term infections with NTHI were gained.
• Viable bacteria counts were used to evaluate NTHI survival characteristics.
• The method demonstrated the ability to assess bacterial behavior in a relevant model.
• Findings could inform future research on respiratory infections.

Conclusions

• This method provides a valuable tool for studying bacterial co-culture with human respiratory tissues.
• It enhances understanding of NTHI interactions with epithelial cells.
• The approach can be adapted for other microbes in similar studies.

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