Title | Transient drug-tolerance and permanent drug-resistance rely on the trehalose-catalytic shift in Mycobacterium tuberculosis. |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Lee JJin, Lee S-K, Song N, Nathan TO, Swarts BM, Eum S-Y, Ehrt S, Cho S-N, Eoh H |
Journal | Nat Commun |
Volume | 10 |
Issue | 1 |
Pagination | 2928 |
Date Published | 2019 07 02 |
ISSN | 2041-1723 |
Keywords | Adenosine Triphosphate, Anti-Bacterial Agents, Bacterial Proteins, Catalysis, Drug Resistance, Multiple, Bacterial, Glucosyltransferases, Humans, Mycobacterium tuberculosis, Trehalose, Tuberculosis |
Abstract | Stochastic formation of Mycobacterium tuberculosis (Mtb) persisters achieves a high level of antibiotic-tolerance and serves as a source of multidrug-resistant (MDR) mutations. As conventional treatment is not effective against infections by persisters and MDR-Mtb, novel therapeutics are needed. Several approaches were proposed to kill persisters by altering their metabolism, obviating the need to target active processes. Here, we adapted a biofilm culture to model Mtb persister-like bacilli (PLB) and demonstrated that PLB underwent trehalose metabolism remodeling. PLB use trehalose as an internal carbon to biosynthesize central carbon metabolism intermediates instead of cell surface glycolipids, thus maintaining levels of ATP and antioxidants. Similar changes were identified in Mtb following antibiotic-treatment, and MDR-Mtb as mechanisms to circumvent antibiotic effects. This suggests that trehalose metabolism is associated not only with transient drug-tolerance but also permanent drug-resistance, and serves as a source of adjunctive therapeutic options, potentiating antibiotic efficacy by interfering with adaptive strategies. |
DOI | 10.1038/s41467-019-10975-7 |
Alternate Journal | Nat Commun |
PubMed ID | 31266959 |
PubMed Central ID | PMC6606615 |
Grant List | R15 AI117670 / AI / NIAID NIH HHS / United States R21 AI139386 / AI / NIAID NIH HHS / United States |
Submitted by jom4013 on December 3, 2020 - 2:05pm