Culture-free approaches including whole genome sequencing in support of diagnostic and transmission studies on Mycobacterium leprae. 01/11/2021 - 31/10/2025

Abstract

Due to the specific characteristics of mycobacteria, diseases such as tuberculosis (TB) and leprosy are associated with numerous challenges in their diagnosis and associated research. Culture of Mycobacterium tuberculosis is a lengthy process, while M. leprae cannot be cultured on artificial medium at all1. Culture-free solutions are thus a necessity for diagnosis and to gain insights in M. leprae diversity. Such analyses are pertinent to better understand why M. leprae remains hyperendemic in the Comoros and other foci worldwide2, by understanding chains of transmission and drug resistance associated polymorphisms. Indeed, developments in the field of direct-on-biopsy whole genome sequencing (WGS) and associated techniques are further advanced for M. leprae compared to M. tuberculosis. Specifically, this study aims to implement recent advances in RNA bait capture of M. leprae DNA that suggest a more sensitive and cheaper approach to WGS3. The expertise and experience gained will in turn be applicable to direct-on-sputum WGS of M. tuberculosis.

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Project type(s)

  • Research Project