High-throughput screening of small molecules targeting Mycobacterium tuberculosis in human iPSC macrophages.

Publication date: May 27, 2025

New treatments are still necessary to eradicate tuberculosis disease. Macrophages derived from human induced pluripotent stem cells (hiPSC-Macs) offer a physiological niche to identify potential new drugs in the context of Mycobacterium tuberculosis (Mtb) infection. Here, we describe the scale-up of hiPSC-Macs production in 5-stack chambers for high-throughput drug screening against Mtb. A rate of approximately 100 million hiPSC-Macs was generated with optimal quality for a period of up to 12 weeks. Moreover, the infection model was optimized using a luminescence-based Mtb reporter strain. The assay showed enough sensitivity to identify compounds that could target host-pathogen interactions during Mtb infection. We interrogated a library of 200,000 compounds in Mtb-infected hiPSC-Macs with a Z-score above 0. 3 in all plates analyzed. After secondary assays, 223 qualified hits were selected for further progression.

Concepts Keywords
Drugs drug screening
High host-pathogen interactions
Library macrophages
Macs tuberculosis
Mycobacterium

Semantics

Type Source Name
disease MESH tuberculosis
pathway KEGG Tuberculosis
disease MESH infection
disease IDO production
disease IDO quality
disease IDO assay
disease IDO host
disease IDO pathogen

Original Article

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