Bioengineered 3D Models for Studying Human Cell-Tuberculosis Interactions

Area of Science:

• * Infectious Diseases
• * Cell Biology
• * Immunology

Background:

• * In vivo animal models present challenges in accurately replicating the complex host-pathogen interactions of tuberculosis (TB).
• * There is a critical need for advanced in vitro models to better understand TB pathogenesis and host responses.
• * Current research requires more physiologically relevant cellular systems to study Mycobacterium tuberculosis (Mtb) infection.

Purpose of the Study:

• * To introduce and evaluate a novel 3D in vitro culture system for studying tuberculosis.
• * To provide an alternative model for investigating host-pathogen interactions beyond traditional animal models.
• * To utilize human blood mononuclear cells for a more human-relevant cellular model of Mtb infection.

Main Methods:

• * Development of a microsphere-based 3D culture system.
• * Infection of the 3D culture with Mycobacterium tuberculosis.
• * Utilizing human blood mononuclear cells as the host cellular component.

Main Results:

• * The 3D culture system successfully supported Mycobacterium tuberculosis infection.
• * The model allowed for the study of specific host-pathogen interactions in vitro.
• * Demonstrated the feasibility of using human blood mononuclear cells in a 3D culture for TB research.

Conclusions:

• * A microsphere-based 3D in vitro system using human cells is a viable alternative to animal models for TB research.
• * This model system addresses limitations of current in vivo approaches for studying host-pathogen dynamics.
• * The developed system offers a promising platform for future investigations into tuberculosis pathogenesis and treatment strategies.